Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * ipr.c -- driver for IBM Power Linux RAID adapters |
| 3 | * |
| 4 | * Written By: Brian King <brking@us.ibm.com>, IBM Corporation |
| 5 | * |
| 6 | * Copyright (C) 2003, 2004 IBM Corporation |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * Notes: |
| 26 | * |
| 27 | * This driver is used to control the following SCSI adapters: |
| 28 | * |
| 29 | * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B |
| 30 | * |
| 31 | * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter |
| 32 | * PCI-X Dual Channel Ultra 320 SCSI Adapter |
| 33 | * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card |
| 34 | * Embedded SCSI adapter on p615 and p655 systems |
| 35 | * |
| 36 | * Supported Hardware Features: |
| 37 | * - Ultra 320 SCSI controller |
| 38 | * - PCI-X host interface |
| 39 | * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine |
| 40 | * - Non-Volatile Write Cache |
| 41 | * - Supports attachment of non-RAID disks, tape, and optical devices |
| 42 | * - RAID Levels 0, 5, 10 |
| 43 | * - Hot spare |
| 44 | * - Background Parity Checking |
| 45 | * - Background Data Scrubbing |
| 46 | * - Ability to increase the capacity of an existing RAID 5 disk array |
| 47 | * by adding disks |
| 48 | * |
| 49 | * Driver Features: |
| 50 | * - Tagged command queuing |
| 51 | * - Adapter microcode download |
| 52 | * - PCI hot plug |
| 53 | * - SCSI device hot plug |
| 54 | * |
| 55 | */ |
| 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | #include <linux/fs.h> |
| 58 | #include <linux/init.h> |
| 59 | #include <linux/types.h> |
| 60 | #include <linux/errno.h> |
| 61 | #include <linux/kernel.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 62 | #include <linux/slab.h> |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 63 | #include <linux/vmalloc.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | #include <linux/ioport.h> |
| 65 | #include <linux/delay.h> |
| 66 | #include <linux/pci.h> |
| 67 | #include <linux/wait.h> |
| 68 | #include <linux/spinlock.h> |
| 69 | #include <linux/sched.h> |
| 70 | #include <linux/interrupt.h> |
| 71 | #include <linux/blkdev.h> |
| 72 | #include <linux/firmware.h> |
| 73 | #include <linux/module.h> |
| 74 | #include <linux/moduleparam.h> |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 75 | #include <linux/libata.h> |
Brian King | 0ce3a7e | 2008-07-11 13:37:50 -0500 | [diff] [blame] | 76 | #include <linux/hdreg.h> |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 77 | #include <linux/reboot.h> |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 78 | #include <linux/stringify.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | #include <asm/io.h> |
| 80 | #include <asm/irq.h> |
| 81 | #include <asm/processor.h> |
| 82 | #include <scsi/scsi.h> |
| 83 | #include <scsi/scsi_host.h> |
| 84 | #include <scsi/scsi_tcq.h> |
| 85 | #include <scsi/scsi_eh.h> |
| 86 | #include <scsi/scsi_cmnd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | #include "ipr.h" |
| 88 | |
| 89 | /* |
| 90 | * Global Data |
| 91 | */ |
Denis Cheng | b7d68ca | 2007-12-13 16:14:27 -0800 | [diff] [blame] | 92 | static LIST_HEAD(ipr_ioa_head); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; |
| 94 | static unsigned int ipr_max_speed = 1; |
| 95 | static int ipr_testmode = 0; |
| 96 | static unsigned int ipr_fastfail = 0; |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 97 | static unsigned int ipr_transop_timeout = 0; |
brking@us.ibm.com | d3c7487 | 2005-11-01 17:01:34 -0600 | [diff] [blame] | 98 | static unsigned int ipr_debug = 0; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 99 | static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 100 | static unsigned int ipr_dual_ioa_raid = 1; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 101 | static unsigned int ipr_number_of_msix = 2; |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 102 | static unsigned int ipr_fast_reboot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | static DEFINE_SPINLOCK(ipr_driver_lock); |
| 104 | |
| 105 | /* This table describes the differences between DMA controller chips */ |
| 106 | static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { |
Brian King | 60e7486 | 2006-11-21 10:28:10 -0600 | [diff] [blame] | 107 | { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | .mailbox = 0x0042C, |
Brian King | 89aad42 | 2012-03-14 21:20:10 -0500 | [diff] [blame] | 109 | .max_cmds = 100, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | .cache_line_size = 0x20, |
Brian King | 7dd2130 | 2012-03-14 21:20:08 -0500 | [diff] [blame] | 111 | .clear_isr = 1, |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 112 | .iopoll_weight = 0, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | { |
| 114 | .set_interrupt_mask_reg = 0x0022C, |
| 115 | .clr_interrupt_mask_reg = 0x00230, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 116 | .clr_interrupt_mask_reg32 = 0x00230, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | .sense_interrupt_mask_reg = 0x0022C, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 118 | .sense_interrupt_mask_reg32 = 0x0022C, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | .clr_interrupt_reg = 0x00228, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 120 | .clr_interrupt_reg32 = 0x00228, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | .sense_interrupt_reg = 0x00224, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 122 | .sense_interrupt_reg32 = 0x00224, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | .ioarrin_reg = 0x00404, |
| 124 | .sense_uproc_interrupt_reg = 0x00214, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 125 | .sense_uproc_interrupt_reg32 = 0x00214, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | .set_uproc_interrupt_reg = 0x00214, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 127 | .set_uproc_interrupt_reg32 = 0x00214, |
| 128 | .clr_uproc_interrupt_reg = 0x00218, |
| 129 | .clr_uproc_interrupt_reg32 = 0x00218 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | } |
| 131 | }, |
| 132 | { /* Snipe and Scamp */ |
| 133 | .mailbox = 0x0052C, |
Brian King | 89aad42 | 2012-03-14 21:20:10 -0500 | [diff] [blame] | 134 | .max_cmds = 100, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | .cache_line_size = 0x20, |
Brian King | 7dd2130 | 2012-03-14 21:20:08 -0500 | [diff] [blame] | 136 | .clear_isr = 1, |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 137 | .iopoll_weight = 0, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | { |
| 139 | .set_interrupt_mask_reg = 0x00288, |
| 140 | .clr_interrupt_mask_reg = 0x0028C, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 141 | .clr_interrupt_mask_reg32 = 0x0028C, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | .sense_interrupt_mask_reg = 0x00288, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 143 | .sense_interrupt_mask_reg32 = 0x00288, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | .clr_interrupt_reg = 0x00284, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 145 | .clr_interrupt_reg32 = 0x00284, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | .sense_interrupt_reg = 0x00280, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 147 | .sense_interrupt_reg32 = 0x00280, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | .ioarrin_reg = 0x00504, |
| 149 | .sense_uproc_interrupt_reg = 0x00290, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 150 | .sense_uproc_interrupt_reg32 = 0x00290, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | .set_uproc_interrupt_reg = 0x00290, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 152 | .set_uproc_interrupt_reg32 = 0x00290, |
| 153 | .clr_uproc_interrupt_reg = 0x00294, |
| 154 | .clr_uproc_interrupt_reg32 = 0x00294 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | } |
| 156 | }, |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 157 | { /* CRoC */ |
Wayne Boyer | 110def8 | 2010-11-04 09:36:16 -0700 | [diff] [blame] | 158 | .mailbox = 0x00044, |
Brian King | 89aad42 | 2012-03-14 21:20:10 -0500 | [diff] [blame] | 159 | .max_cmds = 1000, |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 160 | .cache_line_size = 0x20, |
Brian King | 7dd2130 | 2012-03-14 21:20:08 -0500 | [diff] [blame] | 161 | .clear_isr = 0, |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 162 | .iopoll_weight = 64, |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 163 | { |
| 164 | .set_interrupt_mask_reg = 0x00010, |
| 165 | .clr_interrupt_mask_reg = 0x00018, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 166 | .clr_interrupt_mask_reg32 = 0x0001C, |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 167 | .sense_interrupt_mask_reg = 0x00010, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 168 | .sense_interrupt_mask_reg32 = 0x00014, |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 169 | .clr_interrupt_reg = 0x00008, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 170 | .clr_interrupt_reg32 = 0x0000C, |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 171 | .sense_interrupt_reg = 0x00000, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 172 | .sense_interrupt_reg32 = 0x00004, |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 173 | .ioarrin_reg = 0x00070, |
| 174 | .sense_uproc_interrupt_reg = 0x00020, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 175 | .sense_uproc_interrupt_reg32 = 0x00024, |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 176 | .set_uproc_interrupt_reg = 0x00020, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 177 | .set_uproc_interrupt_reg32 = 0x00024, |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 178 | .clr_uproc_interrupt_reg = 0x00028, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 179 | .clr_uproc_interrupt_reg32 = 0x0002C, |
| 180 | .init_feedback_reg = 0x0005C, |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 181 | .dump_addr_reg = 0x00064, |
Wayne Boyer | 8701f18 | 2010-06-04 10:26:50 -0700 | [diff] [blame] | 182 | .dump_data_reg = 0x00068, |
| 183 | .endian_swap_reg = 0x00084 |
Wayne Boyer | a74c163 | 2010-02-19 13:23:51 -0800 | [diff] [blame] | 184 | } |
| 185 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | }; |
| 187 | |
| 188 | static const struct ipr_chip_t ipr_chip[] = { |
Wayne Boyer | cb237ef | 2010-06-17 11:51:40 -0700 | [diff] [blame] | 189 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
| 190 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
| 191 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
| 192 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
| 193 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
| 194 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, |
| 195 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, |
| 196 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, |
Wayne Boyer | cd9b3d0 | 2012-02-23 11:54:55 -0800 | [diff] [blame] | 197 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | }; |
| 199 | |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 200 | static int ipr_max_bus_speeds[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE |
| 202 | }; |
| 203 | |
| 204 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); |
| 205 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); |
| 206 | module_param_named(max_speed, ipr_max_speed, uint, 0); |
| 207 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); |
| 208 | module_param_named(log_level, ipr_log_level, uint, 0); |
| 209 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); |
| 210 | module_param_named(testmode, ipr_testmode, int, 0); |
| 211 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); |
Wayne Boyer | 2cf22be | 2009-02-24 11:36:00 -0800 | [diff] [blame] | 212 | module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); |
| 214 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); |
| 215 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); |
Wayne Boyer | 2cf22be | 2009-02-24 11:36:00 -0800 | [diff] [blame] | 216 | module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); |
brking@us.ibm.com | d3c7487 | 2005-11-01 17:01:34 -0600 | [diff] [blame] | 217 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 218 | module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); |
| 219 | MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 220 | module_param_named(max_devs, ipr_max_devs, int, 0); |
| 221 | MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " |
| 222 | "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 223 | module_param_named(number_of_msix, ipr_number_of_msix, int, 0); |
wenxiong@linux.vnet.ibm.com | 6634ff7 | 2013-11-15 10:58:15 -0600 | [diff] [blame] | 224 | MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)"); |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 225 | module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR); |
| 226 | MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | MODULE_LICENSE("GPL"); |
| 228 | MODULE_VERSION(IPR_DRIVER_VERSION); |
| 229 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | /* A constant array of IOASCs/URCs/Error Messages */ |
| 231 | static const |
| 232 | struct ipr_error_table_t ipr_error_table[] = { |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 233 | {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | "8155: An unknown error was received"}, |
| 235 | {0x00330000, 0, 0, |
| 236 | "Soft underlength error"}, |
| 237 | {0x005A0000, 0, 0, |
| 238 | "Command to be cancelled not found"}, |
| 239 | {0x00808000, 0, 0, |
| 240 | "Qualified success"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 241 | {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | "FFFE: Soft device bus error recovered by the IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 243 | {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 244 | "4101: Soft device bus fabric error"}, |
Wayne Boyer | 5aa3a33 | 2010-02-19 13:24:32 -0800 | [diff] [blame] | 245 | {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, |
| 246 | "FFFC: Logical block guard error recovered by the device"}, |
| 247 | {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, |
| 248 | "FFFC: Logical block reference tag error recovered by the device"}, |
| 249 | {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, |
| 250 | "4171: Recovered scatter list tag / sequence number error"}, |
| 251 | {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, |
| 252 | "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, |
| 253 | {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, |
| 254 | "4171: Recovered logical block sequence number error on IOA to Host transfer"}, |
| 255 | {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, |
| 256 | "FFFD: Recovered logical block reference tag error detected by the IOA"}, |
| 257 | {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, |
| 258 | "FFFD: Logical block guard error recovered by the IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 259 | {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | "FFF9: Device sector reassign successful"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 261 | {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | "FFF7: Media error recovered by device rewrite procedures"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 263 | {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | "7001: IOA sector reassignment successful"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 265 | {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | "FFF9: Soft media error. Sector reassignment recommended"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 267 | {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | "FFF7: Media error recovered by IOA rewrite procedures"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 269 | {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | "FF3D: Soft PCI bus error recovered by the IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 271 | {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | "FFF6: Device hardware error recovered by the IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 273 | {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | "FFF6: Device hardware error recovered by the device"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 275 | {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | "FF3D: Soft IOA error recovered by the IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 277 | {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | "FFFA: Undefined device response recovered by the IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 279 | {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | "FFF6: Device bus error, message or command phase"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 281 | {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 282 | "FFFE: Task Management Function failed"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 283 | {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | "FFF6: Failure prediction threshold exceeded"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 285 | {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | "8009: Impending cache battery pack failure"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 287 | {0x02040100, 0, 0, |
| 288 | "Logical Unit in process of becoming ready"}, |
| 289 | {0x02040200, 0, 0, |
| 290 | "Initializing command required"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | {0x02040400, 0, 0, |
| 292 | "34FF: Disk device format in progress"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 293 | {0x02040C00, 0, 0, |
| 294 | "Logical unit not accessible, target port in unavailable state"}, |
Brian King | 65f5647 | 2007-04-26 16:00:12 -0500 | [diff] [blame] | 295 | {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, |
| 296 | "9070: IOA requested reset"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | {0x023F0000, 0, 0, |
| 298 | "Synchronization required"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 299 | {0x02408500, 0, 0, |
| 300 | "IOA microcode download required"}, |
| 301 | {0x02408600, 0, 0, |
| 302 | "Device bus connection is prohibited by host"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | {0x024E0000, 0, 0, |
| 304 | "No ready, IOA shutdown"}, |
| 305 | {0x025A0000, 0, 0, |
| 306 | "Not ready, IOA has been shutdown"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 307 | {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | "3020: Storage subsystem configuration error"}, |
| 309 | {0x03110B00, 0, 0, |
| 310 | "FFF5: Medium error, data unreadable, recommend reassign"}, |
| 311 | {0x03110C00, 0, 0, |
| 312 | "7000: Medium error, data unreadable, do not reassign"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 313 | {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | "FFF3: Disk media format bad"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 315 | {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | "3002: Addressed device failed to respond to selection"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 317 | {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | "3100: Device bus error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 319 | {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | "3109: IOA timed out a device command"}, |
| 321 | {0x04088000, 0, 0, |
| 322 | "3120: SCSI bus is not operational"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 323 | {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 324 | "4100: Hard device bus fabric error"}, |
Wayne Boyer | 5aa3a33 | 2010-02-19 13:24:32 -0800 | [diff] [blame] | 325 | {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, |
| 326 | "310C: Logical block guard error detected by the device"}, |
| 327 | {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, |
| 328 | "310C: Logical block reference tag error detected by the device"}, |
| 329 | {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, |
| 330 | "4170: Scatter list tag / sequence number error"}, |
| 331 | {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, |
| 332 | "8150: Logical block CRC error on IOA to Host transfer"}, |
| 333 | {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, |
| 334 | "4170: Logical block sequence number error on IOA to Host transfer"}, |
| 335 | {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, |
| 336 | "310D: Logical block reference tag error detected by the IOA"}, |
| 337 | {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, |
| 338 | "310D: Logical block guard error detected by the IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 339 | {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | "9000: IOA reserved area data check"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 341 | {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | "9001: IOA reserved area invalid data pattern"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 343 | {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | "9002: IOA reserved area LRC error"}, |
Wayne Boyer | 5aa3a33 | 2010-02-19 13:24:32 -0800 | [diff] [blame] | 345 | {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, |
| 346 | "Hardware Error, IOA metadata access error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 347 | {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | "102E: Out of alternate sectors for disk storage"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 349 | {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | "FFF4: Data transfer underlength error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 351 | {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | "FFF4: Data transfer overlength error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 353 | {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | "3400: Logical unit failure"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 355 | {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | "FFF4: Device microcode is corrupt"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 357 | {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | "8150: PCI bus error"}, |
| 359 | {0x04430000, 1, 0, |
| 360 | "Unsupported device bus message received"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 361 | {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | "FFF4: Disk device problem"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 363 | {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | "8150: Permanent IOA failure"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 365 | {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | "3010: Disk device returned wrong response to IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 367 | {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | "8151: IOA microcode error"}, |
| 369 | {0x04448500, 0, 0, |
| 370 | "Device bus status error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 371 | {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | "8157: IOA error requiring IOA reset to recover"}, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 373 | {0x04448700, 0, 0, |
| 374 | "ATA device status error"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | {0x04490000, 0, 0, |
| 376 | "Message reject received from the device"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 377 | {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | "8008: A permanent cache battery pack failure occurred"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 379 | {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | "9090: Disk unit has been modified after the last known status"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 381 | {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 382 | "9081: IOA detected device error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 383 | {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | "9082: IOA detected device error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 385 | {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | "3110: Device bus error, message or command phase"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 387 | {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 388 | "3110: SAS Command / Task Management Function failed"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 389 | {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | "9091: Incorrect hardware configuration change has been detected"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 391 | {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 392 | "9073: Invalid multi-adapter configuration"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 393 | {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 394 | "4010: Incorrect connection between cascaded expanders"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 395 | {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 396 | "4020: Connections exceed IOA design limits"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 397 | {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 398 | "4030: Incorrect multipath connection"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 399 | {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 400 | "4110: Unsupported enclosure function"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 401 | {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL, |
| 402 | "4120: SAS cable VPD cannot be read"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 403 | {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | "FFF4: Command to logical unit failed"}, |
| 405 | {0x05240000, 1, 0, |
| 406 | "Illegal request, invalid request type or request packet"}, |
| 407 | {0x05250000, 0, 0, |
| 408 | "Illegal request, invalid resource handle"}, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 409 | {0x05258000, 0, 0, |
| 410 | "Illegal request, commands not allowed to this device"}, |
| 411 | {0x05258100, 0, 0, |
| 412 | "Illegal request, command not allowed to a secondary adapter"}, |
Wayne Boyer | 5aa3a33 | 2010-02-19 13:24:32 -0800 | [diff] [blame] | 413 | {0x05258200, 0, 0, |
| 414 | "Illegal request, command not allowed to a non-optimized resource"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | {0x05260000, 0, 0, |
| 416 | "Illegal request, invalid field in parameter list"}, |
| 417 | {0x05260100, 0, 0, |
| 418 | "Illegal request, parameter not supported"}, |
| 419 | {0x05260200, 0, 0, |
| 420 | "Illegal request, parameter value invalid"}, |
| 421 | {0x052C0000, 0, 0, |
| 422 | "Illegal request, command sequence error"}, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 423 | {0x052C8000, 1, 0, |
| 424 | "Illegal request, dual adapter support not enabled"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 425 | {0x052C8100, 1, 0, |
| 426 | "Illegal request, another cable connector was physically disabled"}, |
| 427 | {0x054E8000, 1, 0, |
| 428 | "Illegal request, inconsistent group id/group count"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 429 | {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | "9031: Array protection temporarily suspended, protection resuming"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 431 | {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | "9040: Array protection temporarily suspended, protection resuming"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 433 | {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL, |
| 434 | "4080: IOA exceeded maximum operating temperature"}, |
| 435 | {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
| 436 | "4085: Service required"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 437 | {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 438 | "3140: Device bus not ready to ready transition"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 439 | {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | "FFFB: SCSI bus was reset"}, |
| 441 | {0x06290500, 0, 0, |
| 442 | "FFFE: SCSI bus transition to single ended"}, |
| 443 | {0x06290600, 0, 0, |
| 444 | "FFFE: SCSI bus transition to LVD"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 445 | {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | "FFFB: SCSI bus was reset by another initiator"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 447 | {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | "3029: A device replacement has occurred"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 449 | {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL, |
| 450 | "4102: Device bus fabric performance degradation"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 451 | {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | "9051: IOA cache data exists for a missing or failed device"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 453 | {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 454 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 455 | {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | "9025: Disk unit is not supported at its physical location"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 457 | {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | "3020: IOA detected a SCSI bus configuration error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 459 | {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | "3150: SCSI bus configuration error"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 461 | {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 462 | "9074: Asymmetric advanced function disk configuration"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 463 | {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 464 | "4040: Incomplete multipath connection between IOA and enclosure"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 465 | {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 466 | "4041: Incomplete multipath connection between enclosure and device"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 467 | {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 468 | "9075: Incomplete multipath connection between IOA and remote IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 469 | {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 470 | "9076: Configuration error, missing remote IOA"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 471 | {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 472 | "4050: Enclosure does not support a required multipath function"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 473 | {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL, |
| 474 | "4121: Configuration error, required cable is missing"}, |
| 475 | {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL, |
| 476 | "4122: Cable is not plugged into the correct location on remote IOA"}, |
| 477 | {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL, |
| 478 | "4123: Configuration error, invalid cable vital product data"}, |
| 479 | {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL, |
| 480 | "4124: Configuration error, both cable ends are plugged into the same IOA"}, |
Wayne Boyer | b75424f | 2009-01-28 08:24:50 -0800 | [diff] [blame] | 481 | {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, |
| 482 | "4070: Logically bad block written on device"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 483 | {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | "9041: Array protection temporarily suspended"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 485 | {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | "9042: Corrupt array parity detected on specified device"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 487 | {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 488 | "9030: Array no longer protected due to missing or failed disk unit"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 489 | {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 490 | "9071: Link operational transition"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 491 | {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 492 | "9072: Link not operational transition"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 493 | {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | "9032: Array exposed but still protected"}, |
Brian King | e435340 | 2007-03-29 12:43:37 -0500 | [diff] [blame] | 495 | {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, |
| 496 | "70DD: Device forced failed by disrupt device command"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 497 | {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 498 | "4061: Multipath redundancy level got better"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 499 | {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, |
Brian King | 896bbd2 | 2006-08-02 14:57:44 -0500 | [diff] [blame] | 500 | "4060: Multipath redundancy level got worse"}, |
Wen Xiong | f8ee25d | 2015-03-26 11:23:58 -0500 | [diff] [blame] | 501 | {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL, |
| 502 | "9083: Device raw mode enabled"}, |
| 503 | {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL, |
| 504 | "9084: Device raw mode disabled"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | {0x07270000, 0, 0, |
| 506 | "Failure due to other device"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 507 | {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | "9008: IOA does not support functions expected by devices"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 509 | {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 510 | "9010: Cache data associated with attached devices cannot be found"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 511 | {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | "9011: Cache data belongs to devices other than those attached"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 513 | {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | "9020: Array missing 2 or more devices with only 1 device present"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 515 | {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | "9021: Array missing 2 or more devices with 2 or more devices present"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 517 | {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | "9022: Exposed array is missing a required device"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 519 | {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | "9023: Array member(s) not at required physical locations"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 521 | {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 522 | "9024: Array not functional due to present hardware configuration"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 523 | {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | "9026: Array not functional due to present hardware configuration"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 525 | {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | "9027: Array is missing a device and parity is out of sync"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 527 | {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | "9028: Maximum number of arrays already exist"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 529 | {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | "9050: Required cache data cannot be located for a disk unit"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 531 | {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | "9052: Cache data exists for a device that has been modified"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 533 | {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | "9054: IOA resources not available due to previous problems"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 535 | {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 536 | "9092: Disk unit requires initialization before use"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 537 | {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | "9029: Incorrect hardware configuration change has been detected"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 539 | {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 540 | "9060: One or more disk pairs are missing from an array"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 541 | {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 542 | "9061: One or more disks are missing from an array"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 543 | {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | "9062: One or more disks are missing from an array"}, |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 545 | {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | "9063: Maximum number of functional arrays has been exceeded"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 547 | {0x07279A00, 0, 0, |
| 548 | "Data protect, other volume set problem"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 549 | {0x0B260000, 0, 0, |
| 550 | "Aborted command, invalid descriptor"}, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 551 | {0x0B3F9000, 0, 0, |
| 552 | "Target operating conditions have changed, dual adapter takeover"}, |
| 553 | {0x0B530200, 0, 0, |
| 554 | "Aborted command, medium removal prevented"}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | {0x0B5A0000, 0, 0, |
wenxiong@linux.vnet.ibm.com | ed7bd66 | 2013-06-04 18:57:35 -0500 | [diff] [blame] | 556 | "Command terminated by host"}, |
| 557 | {0x0B5B8000, 0, 0, |
| 558 | "Aborted command, command terminated by host"} |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | }; |
| 560 | |
| 561 | static const struct ipr_ses_table_entry ipr_ses_table[] = { |
| 562 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, |
| 563 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, |
| 564 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ |
| 565 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ |
| 566 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ |
| 567 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ |
| 568 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, |
| 569 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, |
| 570 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, |
| 571 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, |
| 572 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, |
| 573 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, |
| 574 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } |
| 575 | }; |
| 576 | |
| 577 | /* |
| 578 | * Function Prototypes |
| 579 | */ |
| 580 | static int ipr_reset_alert(struct ipr_cmnd *); |
| 581 | static void ipr_process_ccn(struct ipr_cmnd *); |
| 582 | static void ipr_process_error(struct ipr_cmnd *); |
| 583 | static void ipr_reset_ioa_job(struct ipr_cmnd *); |
| 584 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, |
| 585 | enum ipr_shutdown_type); |
| 586 | |
| 587 | #ifdef CONFIG_SCSI_IPR_TRACE |
| 588 | /** |
| 589 | * ipr_trc_hook - Add a trace entry to the driver trace |
| 590 | * @ipr_cmd: ipr command struct |
| 591 | * @type: trace type |
| 592 | * @add_data: additional data |
| 593 | * |
| 594 | * Return value: |
| 595 | * none |
| 596 | **/ |
| 597 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, |
| 598 | u8 type, u32 add_data) |
| 599 | { |
| 600 | struct ipr_trace_entry *trace_entry; |
| 601 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
Brian King | bb7c543 | 2015-07-14 11:41:31 -0500 | [diff] [blame] | 602 | unsigned int trace_index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 603 | |
Brian King | bb7c543 | 2015-07-14 11:41:31 -0500 | [diff] [blame] | 604 | trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK; |
| 605 | trace_entry = &ioa_cfg->trace[trace_index]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 606 | trace_entry->time = jiffies; |
| 607 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; |
| 608 | trace_entry->type = type; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 609 | if (ipr_cmd->ioa_cfg->sis64) |
| 610 | trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; |
| 611 | else |
| 612 | trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 613 | trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
| 615 | trace_entry->u.add_data = add_data; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 616 | wmb(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 617 | } |
| 618 | #else |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 619 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | #endif |
| 621 | |
| 622 | /** |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 623 | * ipr_lock_and_done - Acquire lock and complete command |
| 624 | * @ipr_cmd: ipr command struct |
| 625 | * |
| 626 | * Return value: |
| 627 | * none |
| 628 | **/ |
| 629 | static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd) |
| 630 | { |
| 631 | unsigned long lock_flags; |
| 632 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 633 | |
| 634 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 635 | ipr_cmd->done(ipr_cmd); |
| 636 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 637 | } |
| 638 | |
| 639 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse |
| 641 | * @ipr_cmd: ipr command struct |
| 642 | * |
| 643 | * Return value: |
| 644 | * none |
| 645 | **/ |
| 646 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) |
| 647 | { |
| 648 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 649 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
| 650 | struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 651 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 652 | int hrrq_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 653 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 654 | hrrq_id = ioarcb->cmd_pkt.hrrq_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 655 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 656 | ioarcb->cmd_pkt.hrrq_id = hrrq_id; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 657 | ioarcb->data_transfer_length = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 658 | ioarcb->read_data_transfer_length = 0; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 659 | ioarcb->ioadl_len = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 660 | ioarcb->read_ioadl_len = 0; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 661 | |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 662 | if (ipr_cmd->ioa_cfg->sis64) { |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 663 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
| 664 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 665 | ioasa64->u.gata.status = 0; |
| 666 | } else { |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 667 | ioarcb->write_ioadl_addr = |
| 668 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
| 669 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 670 | ioasa->u.gata.status = 0; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 671 | } |
| 672 | |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 673 | ioasa->hdr.ioasc = 0; |
| 674 | ioasa->hdr.residual_data_len = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 675 | ipr_cmd->scsi_cmd = NULL; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 676 | ipr_cmd->qc = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 677 | ipr_cmd->sense_buffer[0] = 0; |
| 678 | ipr_cmd->dma_use_sg = 0; |
| 679 | } |
| 680 | |
| 681 | /** |
| 682 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block |
| 683 | * @ipr_cmd: ipr command struct |
| 684 | * |
| 685 | * Return value: |
| 686 | * none |
| 687 | **/ |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 688 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd, |
| 689 | void (*fast_done) (struct ipr_cmnd *)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | { |
| 691 | ipr_reinit_ipr_cmnd(ipr_cmd); |
| 692 | ipr_cmd->u.scratch = 0; |
| 693 | ipr_cmd->sibling = NULL; |
Brian King | 6cdb081 | 2014-10-30 17:27:10 -0500 | [diff] [blame] | 694 | ipr_cmd->eh_comp = NULL; |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 695 | ipr_cmd->fast_done = fast_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | init_timer(&ipr_cmd->timer); |
| 697 | } |
| 698 | |
| 699 | /** |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 700 | * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | * @ioa_cfg: ioa config struct |
| 702 | * |
| 703 | * Return value: |
| 704 | * pointer to ipr command struct |
| 705 | **/ |
| 706 | static |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 707 | struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 709 | struct ipr_cmnd *ipr_cmd = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 710 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 711 | if (likely(!list_empty(&hrrq->hrrq_free_q))) { |
| 712 | ipr_cmd = list_entry(hrrq->hrrq_free_q.next, |
| 713 | struct ipr_cmnd, queue); |
| 714 | list_del(&ipr_cmd->queue); |
| 715 | } |
| 716 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | |
| 718 | return ipr_cmd; |
| 719 | } |
| 720 | |
| 721 | /** |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 722 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it |
| 723 | * @ioa_cfg: ioa config struct |
| 724 | * |
| 725 | * Return value: |
| 726 | * pointer to ipr command struct |
| 727 | **/ |
| 728 | static |
| 729 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) |
| 730 | { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 731 | struct ipr_cmnd *ipr_cmd = |
| 732 | __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]); |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 733 | ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 734 | return ipr_cmd; |
| 735 | } |
| 736 | |
| 737 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts |
| 739 | * @ioa_cfg: ioa config struct |
| 740 | * @clr_ints: interrupts to clear |
| 741 | * |
| 742 | * This function masks all interrupts on the adapter, then clears the |
| 743 | * interrupts specified in the mask |
| 744 | * |
| 745 | * Return value: |
| 746 | * none |
| 747 | **/ |
| 748 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, |
| 749 | u32 clr_ints) |
| 750 | { |
| 751 | volatile u32 int_reg; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 752 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | |
| 754 | /* Stop new interrupts */ |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 755 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 756 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 757 | ioa_cfg->hrrq[i].allow_interrupts = 0; |
| 758 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 759 | } |
| 760 | wmb(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | |
| 762 | /* Set interrupt mask to stop all new interrupts */ |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 763 | if (ioa_cfg->sis64) |
| 764 | writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); |
| 765 | else |
| 766 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | |
| 768 | /* Clear any pending interrupts */ |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 769 | if (ioa_cfg->sis64) |
| 770 | writel(~0, ioa_cfg->regs.clr_interrupt_reg); |
| 771 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 773 | } |
| 774 | |
| 775 | /** |
| 776 | * ipr_save_pcix_cmd_reg - Save PCI-X command register |
| 777 | * @ioa_cfg: ioa config struct |
| 778 | * |
| 779 | * Return value: |
| 780 | * 0 on success / -EIO on failure |
| 781 | **/ |
| 782 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) |
| 783 | { |
| 784 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); |
| 785 | |
Brian King | 7dce0e1 | 2007-01-23 11:25:30 -0600 | [diff] [blame] | 786 | if (pcix_cmd_reg == 0) |
| 787 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | |
| 789 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, |
| 790 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { |
| 791 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); |
| 792 | return -EIO; |
| 793 | } |
| 794 | |
| 795 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; |
| 796 | return 0; |
| 797 | } |
| 798 | |
| 799 | /** |
| 800 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register |
| 801 | * @ioa_cfg: ioa config struct |
| 802 | * |
| 803 | * Return value: |
| 804 | * 0 on success / -EIO on failure |
| 805 | **/ |
| 806 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) |
| 807 | { |
| 808 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); |
| 809 | |
| 810 | if (pcix_cmd_reg) { |
| 811 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, |
| 812 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { |
| 813 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); |
| 814 | return -EIO; |
| 815 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | } |
| 817 | |
| 818 | return 0; |
| 819 | } |
| 820 | |
| 821 | /** |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 822 | * ipr_sata_eh_done - done function for aborted SATA commands |
| 823 | * @ipr_cmd: ipr command struct |
| 824 | * |
| 825 | * This function is invoked for ops generated to SATA |
| 826 | * devices which are being aborted. |
| 827 | * |
| 828 | * Return value: |
| 829 | * none |
| 830 | **/ |
| 831 | static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) |
| 832 | { |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 833 | struct ata_queued_cmd *qc = ipr_cmd->qc; |
| 834 | struct ipr_sata_port *sata_port = qc->ap->private_data; |
| 835 | |
| 836 | qc->err_mask |= AC_ERR_OTHER; |
| 837 | sata_port->ioasa.status |= ATA_BUSY; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 838 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 839 | ata_qc_complete(qc); |
| 840 | } |
| 841 | |
| 842 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | * ipr_scsi_eh_done - mid-layer done function for aborted ops |
| 844 | * @ipr_cmd: ipr command struct |
| 845 | * |
| 846 | * This function is invoked by the interrupt handler for |
| 847 | * ops generated by the SCSI mid-layer which are being aborted. |
| 848 | * |
| 849 | * Return value: |
| 850 | * none |
| 851 | **/ |
| 852 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) |
| 853 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 854 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 855 | |
| 856 | scsi_cmd->result |= (DID_ERROR << 16); |
| 857 | |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 858 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | scsi_cmd->scsi_done(scsi_cmd); |
Brian King | 6cdb081 | 2014-10-30 17:27:10 -0500 | [diff] [blame] | 860 | if (ipr_cmd->eh_comp) |
| 861 | complete(ipr_cmd->eh_comp); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 862 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | } |
| 864 | |
| 865 | /** |
| 866 | * ipr_fail_all_ops - Fails all outstanding ops. |
| 867 | * @ioa_cfg: ioa config struct |
| 868 | * |
| 869 | * This function fails all outstanding ops. |
| 870 | * |
| 871 | * Return value: |
| 872 | * none |
| 873 | **/ |
| 874 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) |
| 875 | { |
| 876 | struct ipr_cmnd *ipr_cmd, *temp; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 877 | struct ipr_hrr_queue *hrrq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | |
| 879 | ENTER; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 880 | for_each_hrrq(hrrq, ioa_cfg) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 881 | spin_lock(&hrrq->_lock); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 882 | list_for_each_entry_safe(ipr_cmd, |
| 883 | temp, &hrrq->hrrq_pending_q, queue) { |
| 884 | list_del(&ipr_cmd->queue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 886 | ipr_cmd->s.ioasa.hdr.ioasc = |
| 887 | cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); |
| 888 | ipr_cmd->s.ioasa.hdr.ilid = |
| 889 | cpu_to_be32(IPR_DRIVER_ILID); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 891 | if (ipr_cmd->scsi_cmd) |
| 892 | ipr_cmd->done = ipr_scsi_eh_done; |
| 893 | else if (ipr_cmd->qc) |
| 894 | ipr_cmd->done = ipr_sata_eh_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 895 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 896 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, |
| 897 | IPR_IOASC_IOA_WAS_RESET); |
| 898 | del_timer(&ipr_cmd->timer); |
| 899 | ipr_cmd->done(ipr_cmd); |
| 900 | } |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 901 | spin_unlock(&hrrq->_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 902 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 903 | LEAVE; |
| 904 | } |
| 905 | |
| 906 | /** |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 907 | * ipr_send_command - Send driver initiated requests. |
| 908 | * @ipr_cmd: ipr command struct |
| 909 | * |
| 910 | * This function sends a command to the adapter using the correct write call. |
| 911 | * In the case of sis64, calculate the ioarcb size required. Then or in the |
| 912 | * appropriate bits. |
| 913 | * |
| 914 | * Return value: |
| 915 | * none |
| 916 | **/ |
| 917 | static void ipr_send_command(struct ipr_cmnd *ipr_cmd) |
| 918 | { |
| 919 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 920 | dma_addr_t send_dma_addr = ipr_cmd->dma_addr; |
| 921 | |
| 922 | if (ioa_cfg->sis64) { |
| 923 | /* The default size is 256 bytes */ |
| 924 | send_dma_addr |= 0x1; |
| 925 | |
| 926 | /* If the number of ioadls * size of ioadl > 128 bytes, |
| 927 | then use a 512 byte ioarcb */ |
| 928 | if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) |
| 929 | send_dma_addr |= 0x4; |
| 930 | writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); |
| 931 | } else |
| 932 | writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); |
| 933 | } |
| 934 | |
| 935 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 936 | * ipr_do_req - Send driver initiated requests. |
| 937 | * @ipr_cmd: ipr command struct |
| 938 | * @done: done function |
| 939 | * @timeout_func: timeout function |
| 940 | * @timeout: timeout value |
| 941 | * |
| 942 | * This function sends the specified command to the adapter with the |
| 943 | * timeout given. The done function is invoked on command completion. |
| 944 | * |
| 945 | * Return value: |
| 946 | * none |
| 947 | **/ |
| 948 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, |
| 949 | void (*done) (struct ipr_cmnd *), |
| 950 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) |
| 951 | { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 952 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 953 | |
| 954 | ipr_cmd->done = done; |
| 955 | |
| 956 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
| 957 | ipr_cmd->timer.expires = jiffies + timeout; |
| 958 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; |
| 959 | |
| 960 | add_timer(&ipr_cmd->timer); |
| 961 | |
| 962 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); |
| 963 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 964 | ipr_send_command(ipr_cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 965 | } |
| 966 | |
| 967 | /** |
| 968 | * ipr_internal_cmd_done - Op done function for an internally generated op. |
| 969 | * @ipr_cmd: ipr command struct |
| 970 | * |
| 971 | * This function is the op done function for an internally generated, |
| 972 | * blocking op. It simply wakes the sleeping thread. |
| 973 | * |
| 974 | * Return value: |
| 975 | * none |
| 976 | **/ |
| 977 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) |
| 978 | { |
| 979 | if (ipr_cmd->sibling) |
| 980 | ipr_cmd->sibling = NULL; |
| 981 | else |
| 982 | complete(&ipr_cmd->completion); |
| 983 | } |
| 984 | |
| 985 | /** |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 986 | * ipr_init_ioadl - initialize the ioadl for the correct SIS type |
| 987 | * @ipr_cmd: ipr command struct |
| 988 | * @dma_addr: dma address |
| 989 | * @len: transfer length |
| 990 | * @flags: ioadl flag value |
| 991 | * |
| 992 | * This function initializes an ioadl in the case where there is only a single |
| 993 | * descriptor. |
| 994 | * |
| 995 | * Return value: |
| 996 | * nothing |
| 997 | **/ |
| 998 | static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, |
| 999 | u32 len, int flags) |
| 1000 | { |
| 1001 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
| 1002 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
| 1003 | |
| 1004 | ipr_cmd->dma_use_sg = 1; |
| 1005 | |
| 1006 | if (ipr_cmd->ioa_cfg->sis64) { |
| 1007 | ioadl64->flags = cpu_to_be32(flags); |
| 1008 | ioadl64->data_len = cpu_to_be32(len); |
| 1009 | ioadl64->address = cpu_to_be64(dma_addr); |
| 1010 | |
| 1011 | ipr_cmd->ioarcb.ioadl_len = |
| 1012 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); |
| 1013 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); |
| 1014 | } else { |
| 1015 | ioadl->flags_and_data_len = cpu_to_be32(flags | len); |
| 1016 | ioadl->address = cpu_to_be32(dma_addr); |
| 1017 | |
| 1018 | if (flags == IPR_IOADL_FLAGS_READ_LAST) { |
| 1019 | ipr_cmd->ioarcb.read_ioadl_len = |
| 1020 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 1021 | ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); |
| 1022 | } else { |
| 1023 | ipr_cmd->ioarcb.ioadl_len = |
| 1024 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
| 1025 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); |
| 1026 | } |
| 1027 | } |
| 1028 | } |
| 1029 | |
| 1030 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | * ipr_send_blocking_cmd - Send command and sleep on its completion. |
| 1032 | * @ipr_cmd: ipr command struct |
| 1033 | * @timeout_func: function to invoke if command times out |
| 1034 | * @timeout: timeout |
| 1035 | * |
| 1036 | * Return value: |
| 1037 | * none |
| 1038 | **/ |
| 1039 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, |
| 1040 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), |
| 1041 | u32 timeout) |
| 1042 | { |
| 1043 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 1044 | |
| 1045 | init_completion(&ipr_cmd->completion); |
| 1046 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); |
| 1047 | |
| 1048 | spin_unlock_irq(ioa_cfg->host->host_lock); |
| 1049 | wait_for_completion(&ipr_cmd->completion); |
| 1050 | spin_lock_irq(ioa_cfg->host->host_lock); |
| 1051 | } |
| 1052 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 1053 | static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg) |
| 1054 | { |
Brian King | 3f1c058 | 2015-07-14 11:41:33 -0500 | [diff] [blame] | 1055 | unsigned int hrrq; |
| 1056 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 1057 | if (ioa_cfg->hrrq_num == 1) |
Brian King | 3f1c058 | 2015-07-14 11:41:33 -0500 | [diff] [blame] | 1058 | hrrq = 0; |
| 1059 | else { |
| 1060 | hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index); |
| 1061 | hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1; |
| 1062 | } |
| 1063 | return hrrq; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 1064 | } |
| 1065 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | /** |
| 1067 | * ipr_send_hcam - Send an HCAM to the adapter. |
| 1068 | * @ioa_cfg: ioa config struct |
| 1069 | * @type: HCAM type |
| 1070 | * @hostrcb: hostrcb struct |
| 1071 | * |
| 1072 | * This function will send a Host Controlled Async command to the adapter. |
| 1073 | * If HCAMs are currently not allowed to be issued to the adapter, it will |
| 1074 | * place the hostrcb on the free queue. |
| 1075 | * |
| 1076 | * Return value: |
| 1077 | * none |
| 1078 | **/ |
| 1079 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, |
| 1080 | struct ipr_hostrcb *hostrcb) |
| 1081 | { |
| 1082 | struct ipr_cmnd *ipr_cmd; |
| 1083 | struct ipr_ioarcb *ioarcb; |
| 1084 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 1085 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1086 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 1087 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1088 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); |
| 1089 | |
| 1090 | ipr_cmd->u.hostrcb = hostrcb; |
| 1091 | ioarcb = &ipr_cmd->ioarcb; |
| 1092 | |
| 1093 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 1094 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; |
| 1095 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; |
| 1096 | ioarcb->cmd_pkt.cdb[1] = type; |
| 1097 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; |
| 1098 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; |
| 1099 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 1100 | ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, |
| 1101 | sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1102 | |
| 1103 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) |
| 1104 | ipr_cmd->done = ipr_process_ccn; |
| 1105 | else |
| 1106 | ipr_cmd->done = ipr_process_error; |
| 1107 | |
| 1108 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); |
| 1109 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 1110 | ipr_send_command(ipr_cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | } else { |
| 1112 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); |
| 1113 | } |
| 1114 | } |
| 1115 | |
| 1116 | /** |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1117 | * ipr_update_ata_class - Update the ata class in the resource entry |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1118 | * @res: resource entry struct |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1119 | * @proto: cfgte device bus protocol value |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1120 | * |
| 1121 | * Return value: |
| 1122 | * none |
| 1123 | **/ |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1124 | static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | { |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 1126 | switch (proto) { |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1127 | case IPR_PROTO_SATA: |
| 1128 | case IPR_PROTO_SAS_STP: |
| 1129 | res->ata_class = ATA_DEV_ATA; |
| 1130 | break; |
| 1131 | case IPR_PROTO_SATA_ATAPI: |
| 1132 | case IPR_PROTO_SAS_STP_ATAPI: |
| 1133 | res->ata_class = ATA_DEV_ATAPI; |
| 1134 | break; |
| 1135 | default: |
| 1136 | res->ata_class = ATA_DEV_UNKNOWN; |
| 1137 | break; |
| 1138 | }; |
| 1139 | } |
| 1140 | |
| 1141 | /** |
| 1142 | * ipr_init_res_entry - Initialize a resource entry struct. |
| 1143 | * @res: resource entry struct |
| 1144 | * @cfgtew: config table entry wrapper struct |
| 1145 | * |
| 1146 | * Return value: |
| 1147 | * none |
| 1148 | **/ |
| 1149 | static void ipr_init_res_entry(struct ipr_resource_entry *res, |
| 1150 | struct ipr_config_table_entry_wrapper *cfgtew) |
| 1151 | { |
| 1152 | int found = 0; |
| 1153 | unsigned int proto; |
| 1154 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; |
| 1155 | struct ipr_resource_entry *gscsi_res = NULL; |
| 1156 | |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 1157 | res->needs_sync_complete = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | res->in_erp = 0; |
| 1159 | res->add_to_ml = 0; |
| 1160 | res->del_from_ml = 0; |
| 1161 | res->resetting_device = 0; |
Wendy Xiong | 0b1f8d4 | 2014-01-21 12:16:39 -0600 | [diff] [blame] | 1162 | res->reset_occurred = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1163 | res->sdev = NULL; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 1164 | res->sata_port = NULL; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1165 | |
| 1166 | if (ioa_cfg->sis64) { |
| 1167 | proto = cfgtew->u.cfgte64->proto; |
Brian King | 359d96e | 2015-06-11 20:45:20 -0500 | [diff] [blame] | 1168 | res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); |
| 1169 | res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1170 | res->qmodel = IPR_QUEUEING_MODEL64(res); |
Wayne Boyer | 438b033 | 2010-05-10 09:13:00 -0700 | [diff] [blame] | 1171 | res->type = cfgtew->u.cfgte64->res_type; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1172 | |
| 1173 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, |
| 1174 | sizeof(res->res_path)); |
| 1175 | |
| 1176 | res->bus = 0; |
Wayne Boyer | 0cb992e | 2010-11-04 09:35:58 -0700 | [diff] [blame] | 1177 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
| 1178 | sizeof(res->dev_lun.scsi_lun)); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1179 | res->lun = scsilun_to_int(&res->dev_lun); |
| 1180 | |
| 1181 | if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { |
| 1182 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { |
| 1183 | if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { |
| 1184 | found = 1; |
| 1185 | res->target = gscsi_res->target; |
| 1186 | break; |
| 1187 | } |
| 1188 | } |
| 1189 | if (!found) { |
| 1190 | res->target = find_first_zero_bit(ioa_cfg->target_ids, |
| 1191 | ioa_cfg->max_devs_supported); |
| 1192 | set_bit(res->target, ioa_cfg->target_ids); |
| 1193 | } |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1194 | } else if (res->type == IPR_RES_TYPE_IOAFP) { |
| 1195 | res->bus = IPR_IOAFP_VIRTUAL_BUS; |
| 1196 | res->target = 0; |
| 1197 | } else if (res->type == IPR_RES_TYPE_ARRAY) { |
| 1198 | res->bus = IPR_ARRAY_VIRTUAL_BUS; |
| 1199 | res->target = find_first_zero_bit(ioa_cfg->array_ids, |
| 1200 | ioa_cfg->max_devs_supported); |
| 1201 | set_bit(res->target, ioa_cfg->array_ids); |
| 1202 | } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { |
| 1203 | res->bus = IPR_VSET_VIRTUAL_BUS; |
| 1204 | res->target = find_first_zero_bit(ioa_cfg->vset_ids, |
| 1205 | ioa_cfg->max_devs_supported); |
| 1206 | set_bit(res->target, ioa_cfg->vset_ids); |
| 1207 | } else { |
| 1208 | res->target = find_first_zero_bit(ioa_cfg->target_ids, |
| 1209 | ioa_cfg->max_devs_supported); |
| 1210 | set_bit(res->target, ioa_cfg->target_ids); |
| 1211 | } |
| 1212 | } else { |
| 1213 | proto = cfgtew->u.cfgte->proto; |
| 1214 | res->qmodel = IPR_QUEUEING_MODEL(res); |
| 1215 | res->flags = cfgtew->u.cfgte->flags; |
| 1216 | if (res->flags & IPR_IS_IOA_RESOURCE) |
| 1217 | res->type = IPR_RES_TYPE_IOAFP; |
| 1218 | else |
| 1219 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; |
| 1220 | |
| 1221 | res->bus = cfgtew->u.cfgte->res_addr.bus; |
| 1222 | res->target = cfgtew->u.cfgte->res_addr.target; |
| 1223 | res->lun = cfgtew->u.cfgte->res_addr.lun; |
Wayne Boyer | 46d7456 | 2010-08-11 07:15:17 -0700 | [diff] [blame] | 1224 | res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1225 | } |
| 1226 | |
| 1227 | ipr_update_ata_class(res, proto); |
| 1228 | } |
| 1229 | |
| 1230 | /** |
| 1231 | * ipr_is_same_device - Determine if two devices are the same. |
| 1232 | * @res: resource entry struct |
| 1233 | * @cfgtew: config table entry wrapper struct |
| 1234 | * |
| 1235 | * Return value: |
| 1236 | * 1 if the devices are the same / 0 otherwise |
| 1237 | **/ |
| 1238 | static int ipr_is_same_device(struct ipr_resource_entry *res, |
| 1239 | struct ipr_config_table_entry_wrapper *cfgtew) |
| 1240 | { |
| 1241 | if (res->ioa_cfg->sis64) { |
| 1242 | if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, |
| 1243 | sizeof(cfgtew->u.cfgte64->dev_id)) && |
Wayne Boyer | 0cb992e | 2010-11-04 09:35:58 -0700 | [diff] [blame] | 1244 | !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1245 | sizeof(cfgtew->u.cfgte64->lun))) { |
| 1246 | return 1; |
| 1247 | } |
| 1248 | } else { |
| 1249 | if (res->bus == cfgtew->u.cfgte->res_addr.bus && |
| 1250 | res->target == cfgtew->u.cfgte->res_addr.target && |
| 1251 | res->lun == cfgtew->u.cfgte->res_addr.lun) |
| 1252 | return 1; |
| 1253 | } |
| 1254 | |
| 1255 | return 0; |
| 1256 | } |
| 1257 | |
| 1258 | /** |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 1259 | * __ipr_format_res_path - Format the resource path for printing. |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1260 | * @res_path: resource path |
| 1261 | * @buf: buffer |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 1262 | * @len: length of buffer provided |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1263 | * |
| 1264 | * Return value: |
| 1265 | * pointer to buffer |
| 1266 | **/ |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 1267 | static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len) |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1268 | { |
| 1269 | int i; |
Wayne Boyer | 5adcbeb | 2010-06-03 16:02:21 -0700 | [diff] [blame] | 1270 | char *p = buffer; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1271 | |
Wayne Boyer | 46d7456 | 2010-08-11 07:15:17 -0700 | [diff] [blame] | 1272 | *p = '\0'; |
Wayne Boyer | 5adcbeb | 2010-06-03 16:02:21 -0700 | [diff] [blame] | 1273 | p += snprintf(p, buffer + len - p, "%02X", res_path[0]); |
| 1274 | for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++) |
| 1275 | p += snprintf(p, buffer + len - p, "-%02X", res_path[i]); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1276 | |
| 1277 | return buffer; |
| 1278 | } |
| 1279 | |
| 1280 | /** |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 1281 | * ipr_format_res_path - Format the resource path for printing. |
| 1282 | * @ioa_cfg: ioa config struct |
| 1283 | * @res_path: resource path |
| 1284 | * @buf: buffer |
| 1285 | * @len: length of buffer provided |
| 1286 | * |
| 1287 | * Return value: |
| 1288 | * pointer to buffer |
| 1289 | **/ |
| 1290 | static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg, |
| 1291 | u8 *res_path, char *buffer, int len) |
| 1292 | { |
| 1293 | char *p = buffer; |
| 1294 | |
| 1295 | *p = '\0'; |
| 1296 | p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no); |
| 1297 | __ipr_format_res_path(res_path, p, len - (buffer - p)); |
| 1298 | return buffer; |
| 1299 | } |
| 1300 | |
| 1301 | /** |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1302 | * ipr_update_res_entry - Update the resource entry. |
| 1303 | * @res: resource entry struct |
| 1304 | * @cfgtew: config table entry wrapper struct |
| 1305 | * |
| 1306 | * Return value: |
| 1307 | * none |
| 1308 | **/ |
| 1309 | static void ipr_update_res_entry(struct ipr_resource_entry *res, |
| 1310 | struct ipr_config_table_entry_wrapper *cfgtew) |
| 1311 | { |
| 1312 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
| 1313 | unsigned int proto; |
| 1314 | int new_path = 0; |
| 1315 | |
| 1316 | if (res->ioa_cfg->sis64) { |
Brian King | 359d96e | 2015-06-11 20:45:20 -0500 | [diff] [blame] | 1317 | res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); |
| 1318 | res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); |
Wayne Boyer | 75576bb | 2010-07-14 10:50:14 -0700 | [diff] [blame] | 1319 | res->type = cfgtew->u.cfgte64->res_type; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1320 | |
| 1321 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, |
| 1322 | sizeof(struct ipr_std_inq_data)); |
| 1323 | |
| 1324 | res->qmodel = IPR_QUEUEING_MODEL64(res); |
| 1325 | proto = cfgtew->u.cfgte64->proto; |
| 1326 | res->res_handle = cfgtew->u.cfgte64->res_handle; |
| 1327 | res->dev_id = cfgtew->u.cfgte64->dev_id; |
| 1328 | |
| 1329 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
| 1330 | sizeof(res->dev_lun.scsi_lun)); |
| 1331 | |
| 1332 | if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, |
| 1333 | sizeof(res->res_path))) { |
| 1334 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, |
| 1335 | sizeof(res->res_path)); |
| 1336 | new_path = 1; |
| 1337 | } |
| 1338 | |
| 1339 | if (res->sdev && new_path) |
| 1340 | sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 1341 | ipr_format_res_path(res->ioa_cfg, |
| 1342 | res->res_path, buffer, sizeof(buffer))); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1343 | } else { |
| 1344 | res->flags = cfgtew->u.cfgte->flags; |
| 1345 | if (res->flags & IPR_IS_IOA_RESOURCE) |
| 1346 | res->type = IPR_RES_TYPE_IOAFP; |
| 1347 | else |
| 1348 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; |
| 1349 | |
| 1350 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, |
| 1351 | sizeof(struct ipr_std_inq_data)); |
| 1352 | |
| 1353 | res->qmodel = IPR_QUEUEING_MODEL(res); |
| 1354 | proto = cfgtew->u.cfgte->proto; |
| 1355 | res->res_handle = cfgtew->u.cfgte->res_handle; |
| 1356 | } |
| 1357 | |
| 1358 | ipr_update_ata_class(res, proto); |
| 1359 | } |
| 1360 | |
| 1361 | /** |
| 1362 | * ipr_clear_res_target - Clear the bit in the bit map representing the target |
| 1363 | * for the resource. |
| 1364 | * @res: resource entry struct |
| 1365 | * @cfgtew: config table entry wrapper struct |
| 1366 | * |
| 1367 | * Return value: |
| 1368 | * none |
| 1369 | **/ |
| 1370 | static void ipr_clear_res_target(struct ipr_resource_entry *res) |
| 1371 | { |
| 1372 | struct ipr_resource_entry *gscsi_res = NULL; |
| 1373 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; |
| 1374 | |
| 1375 | if (!ioa_cfg->sis64) |
| 1376 | return; |
| 1377 | |
| 1378 | if (res->bus == IPR_ARRAY_VIRTUAL_BUS) |
| 1379 | clear_bit(res->target, ioa_cfg->array_ids); |
| 1380 | else if (res->bus == IPR_VSET_VIRTUAL_BUS) |
| 1381 | clear_bit(res->target, ioa_cfg->vset_ids); |
| 1382 | else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { |
| 1383 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) |
| 1384 | if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) |
| 1385 | return; |
| 1386 | clear_bit(res->target, ioa_cfg->target_ids); |
| 1387 | |
| 1388 | } else if (res->bus == 0) |
| 1389 | clear_bit(res->target, ioa_cfg->target_ids); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1390 | } |
| 1391 | |
| 1392 | /** |
| 1393 | * ipr_handle_config_change - Handle a config change from the adapter |
| 1394 | * @ioa_cfg: ioa config struct |
| 1395 | * @hostrcb: hostrcb |
| 1396 | * |
| 1397 | * Return value: |
| 1398 | * none |
| 1399 | **/ |
| 1400 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1401 | struct ipr_hostrcb *hostrcb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1402 | { |
| 1403 | struct ipr_resource_entry *res = NULL; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1404 | struct ipr_config_table_entry_wrapper cfgtew; |
| 1405 | __be32 cc_res_handle; |
| 1406 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1407 | u32 is_ndn = 1; |
| 1408 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1409 | if (ioa_cfg->sis64) { |
| 1410 | cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; |
| 1411 | cc_res_handle = cfgtew.u.cfgte64->res_handle; |
| 1412 | } else { |
| 1413 | cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; |
| 1414 | cc_res_handle = cfgtew.u.cfgte->res_handle; |
| 1415 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1416 | |
| 1417 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1418 | if (res->res_handle == cc_res_handle) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1419 | is_ndn = 0; |
| 1420 | break; |
| 1421 | } |
| 1422 | } |
| 1423 | |
| 1424 | if (is_ndn) { |
| 1425 | if (list_empty(&ioa_cfg->free_res_q)) { |
| 1426 | ipr_send_hcam(ioa_cfg, |
| 1427 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, |
| 1428 | hostrcb); |
| 1429 | return; |
| 1430 | } |
| 1431 | |
| 1432 | res = list_entry(ioa_cfg->free_res_q.next, |
| 1433 | struct ipr_resource_entry, queue); |
| 1434 | |
| 1435 | list_del(&res->queue); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1436 | ipr_init_res_entry(res, &cfgtew); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1437 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); |
| 1438 | } |
| 1439 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1440 | ipr_update_res_entry(res, &cfgtew); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1441 | |
| 1442 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { |
| 1443 | if (res->sdev) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1444 | res->del_from_ml = 1; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1445 | res->res_handle = IPR_INVALID_RES_HANDLE; |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 1446 | schedule_work(&ioa_cfg->work_q); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1447 | } else { |
| 1448 | ipr_clear_res_target(res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1449 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 1450 | } |
Kleber Sacilotto de Souza | 5767a1c | 2011-02-14 20:19:31 -0200 | [diff] [blame] | 1451 | } else if (!res->sdev || res->del_from_ml) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1452 | res->add_to_ml = 1; |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 1453 | schedule_work(&ioa_cfg->work_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1454 | } |
| 1455 | |
| 1456 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
| 1457 | } |
| 1458 | |
| 1459 | /** |
| 1460 | * ipr_process_ccn - Op done function for a CCN. |
| 1461 | * @ipr_cmd: ipr command struct |
| 1462 | * |
| 1463 | * This function is the op done function for a configuration |
| 1464 | * change notification host controlled async from the adapter. |
| 1465 | * |
| 1466 | * Return value: |
| 1467 | * none |
| 1468 | **/ |
| 1469 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) |
| 1470 | { |
| 1471 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 1472 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 1473 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1474 | |
| 1475 | list_del(&hostrcb->queue); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 1476 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1477 | |
| 1478 | if (ioasc) { |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 1479 | if (ioasc != IPR_IOASC_IOA_WAS_RESET && |
| 1480 | ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1481 | dev_err(&ioa_cfg->pdev->dev, |
| 1482 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); |
| 1483 | |
| 1484 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
| 1485 | } else { |
| 1486 | ipr_handle_config_change(ioa_cfg, hostrcb); |
| 1487 | } |
| 1488 | } |
| 1489 | |
| 1490 | /** |
Brian King | 8cf093e | 2007-04-26 16:00:14 -0500 | [diff] [blame] | 1491 | * strip_and_pad_whitespace - Strip and pad trailing whitespace. |
| 1492 | * @i: index into buffer |
| 1493 | * @buf: string to modify |
| 1494 | * |
| 1495 | * This function will strip all trailing whitespace, pad the end |
| 1496 | * of the string with a single space, and NULL terminate the string. |
| 1497 | * |
| 1498 | * Return value: |
| 1499 | * new length of string |
| 1500 | **/ |
| 1501 | static int strip_and_pad_whitespace(int i, char *buf) |
| 1502 | { |
| 1503 | while (i && buf[i] == ' ') |
| 1504 | i--; |
| 1505 | buf[i+1] = ' '; |
| 1506 | buf[i+2] = '\0'; |
| 1507 | return i + 2; |
| 1508 | } |
| 1509 | |
| 1510 | /** |
| 1511 | * ipr_log_vpd_compact - Log the passed extended VPD compactly. |
| 1512 | * @prefix: string to print at start of printk |
| 1513 | * @hostrcb: hostrcb pointer |
| 1514 | * @vpd: vendor/product id/sn struct |
| 1515 | * |
| 1516 | * Return value: |
| 1517 | * none |
| 1518 | **/ |
| 1519 | static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, |
| 1520 | struct ipr_vpd *vpd) |
| 1521 | { |
| 1522 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; |
| 1523 | int i = 0; |
| 1524 | |
| 1525 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
| 1526 | i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); |
| 1527 | |
| 1528 | memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); |
| 1529 | i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); |
| 1530 | |
| 1531 | memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); |
| 1532 | buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; |
| 1533 | |
| 1534 | ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); |
| 1535 | } |
| 1536 | |
| 1537 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1538 | * ipr_log_vpd - Log the passed VPD to the error log. |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1539 | * @vpd: vendor/product id/sn struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1540 | * |
| 1541 | * Return value: |
| 1542 | * none |
| 1543 | **/ |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1544 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1545 | { |
| 1546 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN |
| 1547 | + IPR_SERIAL_NUM_LEN]; |
| 1548 | |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1549 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
| 1550 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1551 | IPR_PROD_ID_LEN); |
| 1552 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; |
| 1553 | ipr_err("Vendor/Product ID: %s\n", buffer); |
| 1554 | |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1555 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1556 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
| 1557 | ipr_err(" Serial Number: %s\n", buffer); |
| 1558 | } |
| 1559 | |
| 1560 | /** |
Brian King | 8cf093e | 2007-04-26 16:00:14 -0500 | [diff] [blame] | 1561 | * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. |
| 1562 | * @prefix: string to print at start of printk |
| 1563 | * @hostrcb: hostrcb pointer |
| 1564 | * @vpd: vendor/product id/sn/wwn struct |
| 1565 | * |
| 1566 | * Return value: |
| 1567 | * none |
| 1568 | **/ |
| 1569 | static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, |
| 1570 | struct ipr_ext_vpd *vpd) |
| 1571 | { |
| 1572 | ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); |
| 1573 | ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, |
| 1574 | be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); |
| 1575 | } |
| 1576 | |
| 1577 | /** |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1578 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. |
| 1579 | * @vpd: vendor/product id/sn/wwn struct |
| 1580 | * |
| 1581 | * Return value: |
| 1582 | * none |
| 1583 | **/ |
| 1584 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) |
| 1585 | { |
| 1586 | ipr_log_vpd(&vpd->vpd); |
| 1587 | ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), |
| 1588 | be32_to_cpu(vpd->wwid[1])); |
| 1589 | } |
| 1590 | |
| 1591 | /** |
| 1592 | * ipr_log_enhanced_cache_error - Log a cache error. |
| 1593 | * @ioa_cfg: ioa config struct |
| 1594 | * @hostrcb: hostrcb struct |
| 1595 | * |
| 1596 | * Return value: |
| 1597 | * none |
| 1598 | **/ |
| 1599 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1600 | struct ipr_hostrcb *hostrcb) |
| 1601 | { |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 1602 | struct ipr_hostrcb_type_12_error *error; |
| 1603 | |
| 1604 | if (ioa_cfg->sis64) |
| 1605 | error = &hostrcb->hcam.u.error64.u.type_12_error; |
| 1606 | else |
| 1607 | error = &hostrcb->hcam.u.error.u.type_12_error; |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1608 | |
| 1609 | ipr_err("-----Current Configuration-----\n"); |
| 1610 | ipr_err("Cache Directory Card Information:\n"); |
| 1611 | ipr_log_ext_vpd(&error->ioa_vpd); |
| 1612 | ipr_err("Adapter Card Information:\n"); |
| 1613 | ipr_log_ext_vpd(&error->cfc_vpd); |
| 1614 | |
| 1615 | ipr_err("-----Expected Configuration-----\n"); |
| 1616 | ipr_err("Cache Directory Card Information:\n"); |
| 1617 | ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); |
| 1618 | ipr_err("Adapter Card Information:\n"); |
| 1619 | ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); |
| 1620 | |
| 1621 | ipr_err("Additional IOA Data: %08X %08X %08X\n", |
| 1622 | be32_to_cpu(error->ioa_data[0]), |
| 1623 | be32_to_cpu(error->ioa_data[1]), |
| 1624 | be32_to_cpu(error->ioa_data[2])); |
| 1625 | } |
| 1626 | |
| 1627 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1628 | * ipr_log_cache_error - Log a cache error. |
| 1629 | * @ioa_cfg: ioa config struct |
| 1630 | * @hostrcb: hostrcb struct |
| 1631 | * |
| 1632 | * Return value: |
| 1633 | * none |
| 1634 | **/ |
| 1635 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1636 | struct ipr_hostrcb *hostrcb) |
| 1637 | { |
| 1638 | struct ipr_hostrcb_type_02_error *error = |
| 1639 | &hostrcb->hcam.u.error.u.type_02_error; |
| 1640 | |
| 1641 | ipr_err("-----Current Configuration-----\n"); |
| 1642 | ipr_err("Cache Directory Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1643 | ipr_log_vpd(&error->ioa_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1644 | ipr_err("Adapter Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1645 | ipr_log_vpd(&error->cfc_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1646 | |
| 1647 | ipr_err("-----Expected Configuration-----\n"); |
| 1648 | ipr_err("Cache Directory Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1649 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | ipr_err("Adapter Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1651 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1652 | |
| 1653 | ipr_err("Additional IOA Data: %08X %08X %08X\n", |
| 1654 | be32_to_cpu(error->ioa_data[0]), |
| 1655 | be32_to_cpu(error->ioa_data[1]), |
| 1656 | be32_to_cpu(error->ioa_data[2])); |
| 1657 | } |
| 1658 | |
| 1659 | /** |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1660 | * ipr_log_enhanced_config_error - Log a configuration error. |
| 1661 | * @ioa_cfg: ioa config struct |
| 1662 | * @hostrcb: hostrcb struct |
| 1663 | * |
| 1664 | * Return value: |
| 1665 | * none |
| 1666 | **/ |
| 1667 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1668 | struct ipr_hostrcb *hostrcb) |
| 1669 | { |
| 1670 | int errors_logged, i; |
| 1671 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; |
| 1672 | struct ipr_hostrcb_type_13_error *error; |
| 1673 | |
| 1674 | error = &hostrcb->hcam.u.error.u.type_13_error; |
| 1675 | errors_logged = be32_to_cpu(error->errors_logged); |
| 1676 | |
| 1677 | ipr_err("Device Errors Detected/Logged: %d/%d\n", |
| 1678 | be32_to_cpu(error->errors_detected), errors_logged); |
| 1679 | |
| 1680 | dev_entry = error->dev; |
| 1681 | |
| 1682 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
| 1683 | ipr_err_separator; |
| 1684 | |
| 1685 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
| 1686 | ipr_log_ext_vpd(&dev_entry->vpd); |
| 1687 | |
| 1688 | ipr_err("-----New Device Information-----\n"); |
| 1689 | ipr_log_ext_vpd(&dev_entry->new_vpd); |
| 1690 | |
| 1691 | ipr_err("Cache Directory Card Information:\n"); |
| 1692 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); |
| 1693 | |
| 1694 | ipr_err("Adapter Card Information:\n"); |
| 1695 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); |
| 1696 | } |
| 1697 | } |
| 1698 | |
| 1699 | /** |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 1700 | * ipr_log_sis64_config_error - Log a device error. |
| 1701 | * @ioa_cfg: ioa config struct |
| 1702 | * @hostrcb: hostrcb struct |
| 1703 | * |
| 1704 | * Return value: |
| 1705 | * none |
| 1706 | **/ |
| 1707 | static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1708 | struct ipr_hostrcb *hostrcb) |
| 1709 | { |
| 1710 | int errors_logged, i; |
| 1711 | struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; |
| 1712 | struct ipr_hostrcb_type_23_error *error; |
| 1713 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
| 1714 | |
| 1715 | error = &hostrcb->hcam.u.error64.u.type_23_error; |
| 1716 | errors_logged = be32_to_cpu(error->errors_logged); |
| 1717 | |
| 1718 | ipr_err("Device Errors Detected/Logged: %d/%d\n", |
| 1719 | be32_to_cpu(error->errors_detected), errors_logged); |
| 1720 | |
| 1721 | dev_entry = error->dev; |
| 1722 | |
| 1723 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
| 1724 | ipr_err_separator; |
| 1725 | |
| 1726 | ipr_err("Device %d : %s", i + 1, |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 1727 | __ipr_format_res_path(dev_entry->res_path, |
| 1728 | buffer, sizeof(buffer))); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 1729 | ipr_log_ext_vpd(&dev_entry->vpd); |
| 1730 | |
| 1731 | ipr_err("-----New Device Information-----\n"); |
| 1732 | ipr_log_ext_vpd(&dev_entry->new_vpd); |
| 1733 | |
| 1734 | ipr_err("Cache Directory Card Information:\n"); |
| 1735 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); |
| 1736 | |
| 1737 | ipr_err("Adapter Card Information:\n"); |
| 1738 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); |
| 1739 | } |
| 1740 | } |
| 1741 | |
| 1742 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1743 | * ipr_log_config_error - Log a configuration error. |
| 1744 | * @ioa_cfg: ioa config struct |
| 1745 | * @hostrcb: hostrcb struct |
| 1746 | * |
| 1747 | * Return value: |
| 1748 | * none |
| 1749 | **/ |
| 1750 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1751 | struct ipr_hostrcb *hostrcb) |
| 1752 | { |
| 1753 | int errors_logged, i; |
| 1754 | struct ipr_hostrcb_device_data_entry *dev_entry; |
| 1755 | struct ipr_hostrcb_type_03_error *error; |
| 1756 | |
| 1757 | error = &hostrcb->hcam.u.error.u.type_03_error; |
| 1758 | errors_logged = be32_to_cpu(error->errors_logged); |
| 1759 | |
| 1760 | ipr_err("Device Errors Detected/Logged: %d/%d\n", |
| 1761 | be32_to_cpu(error->errors_detected), errors_logged); |
| 1762 | |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1763 | dev_entry = error->dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1764 | |
| 1765 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
| 1766 | ipr_err_separator; |
| 1767 | |
brking@us.ibm.com | fa15b1f | 2005-11-01 17:00:27 -0600 | [diff] [blame] | 1768 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1769 | ipr_log_vpd(&dev_entry->vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | |
| 1771 | ipr_err("-----New Device Information-----\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1772 | ipr_log_vpd(&dev_entry->new_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1773 | |
| 1774 | ipr_err("Cache Directory Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1775 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1776 | |
| 1777 | ipr_err("Adapter Card Information:\n"); |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1778 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1779 | |
| 1780 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", |
| 1781 | be32_to_cpu(dev_entry->ioa_data[0]), |
| 1782 | be32_to_cpu(dev_entry->ioa_data[1]), |
| 1783 | be32_to_cpu(dev_entry->ioa_data[2]), |
| 1784 | be32_to_cpu(dev_entry->ioa_data[3]), |
| 1785 | be32_to_cpu(dev_entry->ioa_data[4])); |
| 1786 | } |
| 1787 | } |
| 1788 | |
| 1789 | /** |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1790 | * ipr_log_enhanced_array_error - Log an array configuration error. |
| 1791 | * @ioa_cfg: ioa config struct |
| 1792 | * @hostrcb: hostrcb struct |
| 1793 | * |
| 1794 | * Return value: |
| 1795 | * none |
| 1796 | **/ |
| 1797 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1798 | struct ipr_hostrcb *hostrcb) |
| 1799 | { |
| 1800 | int i, num_entries; |
| 1801 | struct ipr_hostrcb_type_14_error *error; |
| 1802 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; |
| 1803 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
| 1804 | |
| 1805 | error = &hostrcb->hcam.u.error.u.type_14_error; |
| 1806 | |
| 1807 | ipr_err_separator; |
| 1808 | |
| 1809 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", |
| 1810 | error->protection_level, |
| 1811 | ioa_cfg->host->host_no, |
| 1812 | error->last_func_vset_res_addr.bus, |
| 1813 | error->last_func_vset_res_addr.target, |
| 1814 | error->last_func_vset_res_addr.lun); |
| 1815 | |
| 1816 | ipr_err_separator; |
| 1817 | |
| 1818 | array_entry = error->array_member; |
| 1819 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), |
Wayne Boyer | 7262026 | 2010-09-27 10:45:28 -0700 | [diff] [blame] | 1820 | ARRAY_SIZE(error->array_member)); |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1821 | |
| 1822 | for (i = 0; i < num_entries; i++, array_entry++) { |
| 1823 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
| 1824 | continue; |
| 1825 | |
| 1826 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
| 1827 | ipr_err("Exposed Array Member %d:\n", i); |
| 1828 | else |
| 1829 | ipr_err("Array Member %d:\n", i); |
| 1830 | |
| 1831 | ipr_log_ext_vpd(&array_entry->vpd); |
| 1832 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
| 1833 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, |
| 1834 | "Expected Location"); |
| 1835 | |
| 1836 | ipr_err_separator; |
| 1837 | } |
| 1838 | } |
| 1839 | |
| 1840 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | * ipr_log_array_error - Log an array configuration error. |
| 1842 | * @ioa_cfg: ioa config struct |
| 1843 | * @hostrcb: hostrcb struct |
| 1844 | * |
| 1845 | * Return value: |
| 1846 | * none |
| 1847 | **/ |
| 1848 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1849 | struct ipr_hostrcb *hostrcb) |
| 1850 | { |
| 1851 | int i; |
| 1852 | struct ipr_hostrcb_type_04_error *error; |
| 1853 | struct ipr_hostrcb_array_data_entry *array_entry; |
| 1854 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
| 1855 | |
| 1856 | error = &hostrcb->hcam.u.error.u.type_04_error; |
| 1857 | |
| 1858 | ipr_err_separator; |
| 1859 | |
| 1860 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", |
| 1861 | error->protection_level, |
| 1862 | ioa_cfg->host->host_no, |
| 1863 | error->last_func_vset_res_addr.bus, |
| 1864 | error->last_func_vset_res_addr.target, |
| 1865 | error->last_func_vset_res_addr.lun); |
| 1866 | |
| 1867 | ipr_err_separator; |
| 1868 | |
| 1869 | array_entry = error->array_member; |
| 1870 | |
| 1871 | for (i = 0; i < 18; i++) { |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1872 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1873 | continue; |
| 1874 | |
brking@us.ibm.com | fa15b1f | 2005-11-01 17:00:27 -0600 | [diff] [blame] | 1875 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1876 | ipr_err("Exposed Array Member %d:\n", i); |
brking@us.ibm.com | fa15b1f | 2005-11-01 17:00:27 -0600 | [diff] [blame] | 1877 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1878 | ipr_err("Array Member %d:\n", i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1879 | |
brking@us.ibm.com | cfc3213 | 2005-11-01 17:00:18 -0600 | [diff] [blame] | 1880 | ipr_log_vpd(&array_entry->vpd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1881 | |
brking@us.ibm.com | fa15b1f | 2005-11-01 17:00:27 -0600 | [diff] [blame] | 1882 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
| 1883 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, |
| 1884 | "Expected Location"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1885 | |
| 1886 | ipr_err_separator; |
| 1887 | |
| 1888 | if (i == 9) |
| 1889 | array_entry = error->array_member2; |
| 1890 | else |
| 1891 | array_entry++; |
| 1892 | } |
| 1893 | } |
| 1894 | |
| 1895 | /** |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1896 | * ipr_log_hex_data - Log additional hex IOA error data. |
Brian King | ac719ab | 2006-11-21 10:28:42 -0600 | [diff] [blame] | 1897 | * @ioa_cfg: ioa config struct |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1898 | * @data: IOA error data |
| 1899 | * @len: data length |
| 1900 | * |
| 1901 | * Return value: |
| 1902 | * none |
| 1903 | **/ |
Brian King | 359d96e | 2015-06-11 20:45:20 -0500 | [diff] [blame] | 1904 | static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len) |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1905 | { |
| 1906 | int i; |
| 1907 | |
| 1908 | if (len == 0) |
| 1909 | return; |
| 1910 | |
Brian King | ac719ab | 2006-11-21 10:28:42 -0600 | [diff] [blame] | 1911 | if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
| 1912 | len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); |
| 1913 | |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1914 | for (i = 0; i < len / 4; i += 4) { |
| 1915 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
| 1916 | be32_to_cpu(data[i]), |
| 1917 | be32_to_cpu(data[i+1]), |
| 1918 | be32_to_cpu(data[i+2]), |
| 1919 | be32_to_cpu(data[i+3])); |
| 1920 | } |
| 1921 | } |
| 1922 | |
| 1923 | /** |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1924 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. |
| 1925 | * @ioa_cfg: ioa config struct |
| 1926 | * @hostrcb: hostrcb struct |
| 1927 | * |
| 1928 | * Return value: |
| 1929 | * none |
| 1930 | **/ |
| 1931 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1932 | struct ipr_hostrcb *hostrcb) |
| 1933 | { |
| 1934 | struct ipr_hostrcb_type_17_error *error; |
| 1935 | |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 1936 | if (ioa_cfg->sis64) |
| 1937 | error = &hostrcb->hcam.u.error64.u.type_17_error; |
| 1938 | else |
| 1939 | error = &hostrcb->hcam.u.error.u.type_17_error; |
| 1940 | |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1941 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
KOSAKI Motohiro | ca54cb8 | 2009-12-14 18:01:15 -0800 | [diff] [blame] | 1942 | strim(error->failure_reason); |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1943 | |
Brian King | 8cf093e | 2007-04-26 16:00:14 -0500 | [diff] [blame] | 1944 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, |
| 1945 | be32_to_cpu(hostrcb->hcam.u.error.prc)); |
| 1946 | ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); |
Brian King | ac719ab | 2006-11-21 10:28:42 -0600 | [diff] [blame] | 1947 | ipr_log_hex_data(ioa_cfg, error->data, |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 1948 | be32_to_cpu(hostrcb->hcam.length) - |
| 1949 | (offsetof(struct ipr_hostrcb_error, u) + |
| 1950 | offsetof(struct ipr_hostrcb_type_17_error, data))); |
| 1951 | } |
| 1952 | |
| 1953 | /** |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1954 | * ipr_log_dual_ioa_error - Log a dual adapter error. |
| 1955 | * @ioa_cfg: ioa config struct |
| 1956 | * @hostrcb: hostrcb struct |
| 1957 | * |
| 1958 | * Return value: |
| 1959 | * none |
| 1960 | **/ |
| 1961 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, |
| 1962 | struct ipr_hostrcb *hostrcb) |
| 1963 | { |
| 1964 | struct ipr_hostrcb_type_07_error *error; |
| 1965 | |
| 1966 | error = &hostrcb->hcam.u.error.u.type_07_error; |
| 1967 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
KOSAKI Motohiro | ca54cb8 | 2009-12-14 18:01:15 -0800 | [diff] [blame] | 1968 | strim(error->failure_reason); |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1969 | |
Brian King | 8cf093e | 2007-04-26 16:00:14 -0500 | [diff] [blame] | 1970 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, |
| 1971 | be32_to_cpu(hostrcb->hcam.u.error.prc)); |
| 1972 | ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); |
Brian King | ac719ab | 2006-11-21 10:28:42 -0600 | [diff] [blame] | 1973 | ipr_log_hex_data(ioa_cfg, error->data, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 1974 | be32_to_cpu(hostrcb->hcam.length) - |
| 1975 | (offsetof(struct ipr_hostrcb_error, u) + |
| 1976 | offsetof(struct ipr_hostrcb_type_07_error, data))); |
| 1977 | } |
| 1978 | |
Brian King | 49dc6a1 | 2006-11-21 10:28:35 -0600 | [diff] [blame] | 1979 | static const struct { |
| 1980 | u8 active; |
| 1981 | char *desc; |
| 1982 | } path_active_desc[] = { |
| 1983 | { IPR_PATH_NO_INFO, "Path" }, |
| 1984 | { IPR_PATH_ACTIVE, "Active path" }, |
| 1985 | { IPR_PATH_NOT_ACTIVE, "Inactive path" } |
| 1986 | }; |
| 1987 | |
| 1988 | static const struct { |
| 1989 | u8 state; |
| 1990 | char *desc; |
| 1991 | } path_state_desc[] = { |
| 1992 | { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, |
| 1993 | { IPR_PATH_HEALTHY, "is healthy" }, |
| 1994 | { IPR_PATH_DEGRADED, "is degraded" }, |
| 1995 | { IPR_PATH_FAILED, "is failed" } |
| 1996 | }; |
| 1997 | |
| 1998 | /** |
| 1999 | * ipr_log_fabric_path - Log a fabric path error |
| 2000 | * @hostrcb: hostrcb struct |
| 2001 | * @fabric: fabric descriptor |
| 2002 | * |
| 2003 | * Return value: |
| 2004 | * none |
| 2005 | **/ |
| 2006 | static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, |
| 2007 | struct ipr_hostrcb_fabric_desc *fabric) |
| 2008 | { |
| 2009 | int i, j; |
| 2010 | u8 path_state = fabric->path_state; |
| 2011 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; |
| 2012 | u8 state = path_state & IPR_PATH_STATE_MASK; |
| 2013 | |
| 2014 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { |
| 2015 | if (path_active_desc[i].active != active) |
| 2016 | continue; |
| 2017 | |
| 2018 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { |
| 2019 | if (path_state_desc[j].state != state) |
| 2020 | continue; |
| 2021 | |
| 2022 | if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { |
| 2023 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", |
| 2024 | path_active_desc[i].desc, path_state_desc[j].desc, |
| 2025 | fabric->ioa_port); |
| 2026 | } else if (fabric->cascaded_expander == 0xff) { |
| 2027 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", |
| 2028 | path_active_desc[i].desc, path_state_desc[j].desc, |
| 2029 | fabric->ioa_port, fabric->phy); |
| 2030 | } else if (fabric->phy == 0xff) { |
| 2031 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", |
| 2032 | path_active_desc[i].desc, path_state_desc[j].desc, |
| 2033 | fabric->ioa_port, fabric->cascaded_expander); |
| 2034 | } else { |
| 2035 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", |
| 2036 | path_active_desc[i].desc, path_state_desc[j].desc, |
| 2037 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); |
| 2038 | } |
| 2039 | return; |
| 2040 | } |
| 2041 | } |
| 2042 | |
| 2043 | ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, |
| 2044 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); |
| 2045 | } |
| 2046 | |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2047 | /** |
| 2048 | * ipr_log64_fabric_path - Log a fabric path error |
| 2049 | * @hostrcb: hostrcb struct |
| 2050 | * @fabric: fabric descriptor |
| 2051 | * |
| 2052 | * Return value: |
| 2053 | * none |
| 2054 | **/ |
| 2055 | static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, |
| 2056 | struct ipr_hostrcb64_fabric_desc *fabric) |
| 2057 | { |
| 2058 | int i, j; |
| 2059 | u8 path_state = fabric->path_state; |
| 2060 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; |
| 2061 | u8 state = path_state & IPR_PATH_STATE_MASK; |
| 2062 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
| 2063 | |
| 2064 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { |
| 2065 | if (path_active_desc[i].active != active) |
| 2066 | continue; |
| 2067 | |
| 2068 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { |
| 2069 | if (path_state_desc[j].state != state) |
| 2070 | continue; |
| 2071 | |
| 2072 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", |
| 2073 | path_active_desc[i].desc, path_state_desc[j].desc, |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 2074 | ipr_format_res_path(hostrcb->ioa_cfg, |
| 2075 | fabric->res_path, |
| 2076 | buffer, sizeof(buffer))); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2077 | return; |
| 2078 | } |
| 2079 | } |
| 2080 | |
| 2081 | ipr_err("Path state=%02X Resource Path=%s\n", path_state, |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 2082 | ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path, |
| 2083 | buffer, sizeof(buffer))); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2084 | } |
| 2085 | |
Brian King | 49dc6a1 | 2006-11-21 10:28:35 -0600 | [diff] [blame] | 2086 | static const struct { |
| 2087 | u8 type; |
| 2088 | char *desc; |
| 2089 | } path_type_desc[] = { |
| 2090 | { IPR_PATH_CFG_IOA_PORT, "IOA port" }, |
| 2091 | { IPR_PATH_CFG_EXP_PORT, "Expander port" }, |
| 2092 | { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, |
| 2093 | { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } |
| 2094 | }; |
| 2095 | |
| 2096 | static const struct { |
| 2097 | u8 status; |
| 2098 | char *desc; |
| 2099 | } path_status_desc[] = { |
| 2100 | { IPR_PATH_CFG_NO_PROB, "Functional" }, |
| 2101 | { IPR_PATH_CFG_DEGRADED, "Degraded" }, |
| 2102 | { IPR_PATH_CFG_FAILED, "Failed" }, |
| 2103 | { IPR_PATH_CFG_SUSPECT, "Suspect" }, |
| 2104 | { IPR_PATH_NOT_DETECTED, "Missing" }, |
| 2105 | { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } |
| 2106 | }; |
| 2107 | |
| 2108 | static const char *link_rate[] = { |
| 2109 | "unknown", |
| 2110 | "disabled", |
| 2111 | "phy reset problem", |
| 2112 | "spinup hold", |
| 2113 | "port selector", |
| 2114 | "unknown", |
| 2115 | "unknown", |
| 2116 | "unknown", |
| 2117 | "1.5Gbps", |
| 2118 | "3.0Gbps", |
| 2119 | "unknown", |
| 2120 | "unknown", |
| 2121 | "unknown", |
| 2122 | "unknown", |
| 2123 | "unknown", |
| 2124 | "unknown" |
| 2125 | }; |
| 2126 | |
| 2127 | /** |
| 2128 | * ipr_log_path_elem - Log a fabric path element. |
| 2129 | * @hostrcb: hostrcb struct |
| 2130 | * @cfg: fabric path element struct |
| 2131 | * |
| 2132 | * Return value: |
| 2133 | * none |
| 2134 | **/ |
| 2135 | static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, |
| 2136 | struct ipr_hostrcb_config_element *cfg) |
| 2137 | { |
| 2138 | int i, j; |
| 2139 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; |
| 2140 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; |
| 2141 | |
| 2142 | if (type == IPR_PATH_CFG_NOT_EXIST) |
| 2143 | return; |
| 2144 | |
| 2145 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { |
| 2146 | if (path_type_desc[i].type != type) |
| 2147 | continue; |
| 2148 | |
| 2149 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { |
| 2150 | if (path_status_desc[j].status != status) |
| 2151 | continue; |
| 2152 | |
| 2153 | if (type == IPR_PATH_CFG_IOA_PORT) { |
| 2154 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", |
| 2155 | path_status_desc[j].desc, path_type_desc[i].desc, |
| 2156 | cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
| 2157 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
| 2158 | } else { |
| 2159 | if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { |
| 2160 | ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", |
| 2161 | path_status_desc[j].desc, path_type_desc[i].desc, |
| 2162 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
| 2163 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
| 2164 | } else if (cfg->cascaded_expander == 0xff) { |
| 2165 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " |
| 2166 | "WWN=%08X%08X\n", path_status_desc[j].desc, |
| 2167 | path_type_desc[i].desc, cfg->phy, |
| 2168 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
| 2169 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
| 2170 | } else if (cfg->phy == 0xff) { |
| 2171 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " |
| 2172 | "WWN=%08X%08X\n", path_status_desc[j].desc, |
| 2173 | path_type_desc[i].desc, cfg->cascaded_expander, |
| 2174 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
| 2175 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
| 2176 | } else { |
| 2177 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " |
| 2178 | "WWN=%08X%08X\n", path_status_desc[j].desc, |
| 2179 | path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, |
| 2180 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
| 2181 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
| 2182 | } |
| 2183 | } |
| 2184 | return; |
| 2185 | } |
| 2186 | } |
| 2187 | |
| 2188 | ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " |
| 2189 | "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, |
| 2190 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
| 2191 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
| 2192 | } |
| 2193 | |
| 2194 | /** |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2195 | * ipr_log64_path_elem - Log a fabric path element. |
| 2196 | * @hostrcb: hostrcb struct |
| 2197 | * @cfg: fabric path element struct |
| 2198 | * |
| 2199 | * Return value: |
| 2200 | * none |
| 2201 | **/ |
| 2202 | static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, |
| 2203 | struct ipr_hostrcb64_config_element *cfg) |
| 2204 | { |
| 2205 | int i, j; |
| 2206 | u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; |
| 2207 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; |
| 2208 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; |
| 2209 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
| 2210 | |
| 2211 | if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) |
| 2212 | return; |
| 2213 | |
| 2214 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { |
| 2215 | if (path_type_desc[i].type != type) |
| 2216 | continue; |
| 2217 | |
| 2218 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { |
| 2219 | if (path_status_desc[j].status != status) |
| 2220 | continue; |
| 2221 | |
| 2222 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", |
| 2223 | path_status_desc[j].desc, path_type_desc[i].desc, |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 2224 | ipr_format_res_path(hostrcb->ioa_cfg, |
| 2225 | cfg->res_path, buffer, sizeof(buffer)), |
| 2226 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
| 2227 | be32_to_cpu(cfg->wwid[0]), |
| 2228 | be32_to_cpu(cfg->wwid[1])); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2229 | return; |
| 2230 | } |
| 2231 | } |
| 2232 | ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " |
| 2233 | "WWN=%08X%08X\n", cfg->type_status, |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 2234 | ipr_format_res_path(hostrcb->ioa_cfg, |
| 2235 | cfg->res_path, buffer, sizeof(buffer)), |
| 2236 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
| 2237 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2238 | } |
| 2239 | |
| 2240 | /** |
Brian King | 49dc6a1 | 2006-11-21 10:28:35 -0600 | [diff] [blame] | 2241 | * ipr_log_fabric_error - Log a fabric error. |
| 2242 | * @ioa_cfg: ioa config struct |
| 2243 | * @hostrcb: hostrcb struct |
| 2244 | * |
| 2245 | * Return value: |
| 2246 | * none |
| 2247 | **/ |
| 2248 | static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, |
| 2249 | struct ipr_hostrcb *hostrcb) |
| 2250 | { |
| 2251 | struct ipr_hostrcb_type_20_error *error; |
| 2252 | struct ipr_hostrcb_fabric_desc *fabric; |
| 2253 | struct ipr_hostrcb_config_element *cfg; |
| 2254 | int i, add_len; |
| 2255 | |
| 2256 | error = &hostrcb->hcam.u.error.u.type_20_error; |
| 2257 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
| 2258 | ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); |
| 2259 | |
| 2260 | add_len = be32_to_cpu(hostrcb->hcam.length) - |
| 2261 | (offsetof(struct ipr_hostrcb_error, u) + |
| 2262 | offsetof(struct ipr_hostrcb_type_20_error, desc)); |
| 2263 | |
| 2264 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { |
| 2265 | ipr_log_fabric_path(hostrcb, fabric); |
| 2266 | for_each_fabric_cfg(fabric, cfg) |
| 2267 | ipr_log_path_elem(hostrcb, cfg); |
| 2268 | |
| 2269 | add_len -= be16_to_cpu(fabric->length); |
| 2270 | fabric = (struct ipr_hostrcb_fabric_desc *) |
| 2271 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); |
| 2272 | } |
| 2273 | |
Brian King | 359d96e | 2015-06-11 20:45:20 -0500 | [diff] [blame] | 2274 | ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len); |
Brian King | 49dc6a1 | 2006-11-21 10:28:35 -0600 | [diff] [blame] | 2275 | } |
| 2276 | |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 2277 | /** |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2278 | * ipr_log_sis64_array_error - Log a sis64 array error. |
| 2279 | * @ioa_cfg: ioa config struct |
| 2280 | * @hostrcb: hostrcb struct |
| 2281 | * |
| 2282 | * Return value: |
| 2283 | * none |
| 2284 | **/ |
| 2285 | static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, |
| 2286 | struct ipr_hostrcb *hostrcb) |
| 2287 | { |
| 2288 | int i, num_entries; |
| 2289 | struct ipr_hostrcb_type_24_error *error; |
| 2290 | struct ipr_hostrcb64_array_data_entry *array_entry; |
| 2291 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
| 2292 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
| 2293 | |
| 2294 | error = &hostrcb->hcam.u.error64.u.type_24_error; |
| 2295 | |
| 2296 | ipr_err_separator; |
| 2297 | |
| 2298 | ipr_err("RAID %s Array Configuration: %s\n", |
| 2299 | error->protection_level, |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 2300 | ipr_format_res_path(ioa_cfg, error->last_res_path, |
| 2301 | buffer, sizeof(buffer))); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2302 | |
| 2303 | ipr_err_separator; |
| 2304 | |
| 2305 | array_entry = error->array_member; |
Wayne Boyer | 7262026 | 2010-09-27 10:45:28 -0700 | [diff] [blame] | 2306 | num_entries = min_t(u32, error->num_entries, |
| 2307 | ARRAY_SIZE(error->array_member)); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2308 | |
| 2309 | for (i = 0; i < num_entries; i++, array_entry++) { |
| 2310 | |
| 2311 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
| 2312 | continue; |
| 2313 | |
| 2314 | if (error->exposed_mode_adn == i) |
| 2315 | ipr_err("Exposed Array Member %d:\n", i); |
| 2316 | else |
| 2317 | ipr_err("Array Member %d:\n", i); |
| 2318 | |
| 2319 | ipr_err("Array Member %d:\n", i); |
| 2320 | ipr_log_ext_vpd(&array_entry->vpd); |
Wayne Boyer | 7262026 | 2010-09-27 10:45:28 -0700 | [diff] [blame] | 2321 | ipr_err("Current Location: %s\n", |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 2322 | ipr_format_res_path(ioa_cfg, array_entry->res_path, |
| 2323 | buffer, sizeof(buffer))); |
Wayne Boyer | 7262026 | 2010-09-27 10:45:28 -0700 | [diff] [blame] | 2324 | ipr_err("Expected Location: %s\n", |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 2325 | ipr_format_res_path(ioa_cfg, |
| 2326 | array_entry->expected_res_path, |
| 2327 | buffer, sizeof(buffer))); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2328 | |
| 2329 | ipr_err_separator; |
| 2330 | } |
| 2331 | } |
| 2332 | |
| 2333 | /** |
| 2334 | * ipr_log_sis64_fabric_error - Log a sis64 fabric error. |
| 2335 | * @ioa_cfg: ioa config struct |
| 2336 | * @hostrcb: hostrcb struct |
| 2337 | * |
| 2338 | * Return value: |
| 2339 | * none |
| 2340 | **/ |
| 2341 | static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, |
| 2342 | struct ipr_hostrcb *hostrcb) |
| 2343 | { |
| 2344 | struct ipr_hostrcb_type_30_error *error; |
| 2345 | struct ipr_hostrcb64_fabric_desc *fabric; |
| 2346 | struct ipr_hostrcb64_config_element *cfg; |
| 2347 | int i, add_len; |
| 2348 | |
| 2349 | error = &hostrcb->hcam.u.error64.u.type_30_error; |
| 2350 | |
| 2351 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
| 2352 | ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); |
| 2353 | |
| 2354 | add_len = be32_to_cpu(hostrcb->hcam.length) - |
| 2355 | (offsetof(struct ipr_hostrcb64_error, u) + |
| 2356 | offsetof(struct ipr_hostrcb_type_30_error, desc)); |
| 2357 | |
| 2358 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { |
| 2359 | ipr_log64_fabric_path(hostrcb, fabric); |
| 2360 | for_each_fabric_cfg(fabric, cfg) |
| 2361 | ipr_log64_path_elem(hostrcb, cfg); |
| 2362 | |
| 2363 | add_len -= be16_to_cpu(fabric->length); |
| 2364 | fabric = (struct ipr_hostrcb64_fabric_desc *) |
| 2365 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); |
| 2366 | } |
| 2367 | |
Brian King | 359d96e | 2015-06-11 20:45:20 -0500 | [diff] [blame] | 2368 | ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2369 | } |
| 2370 | |
| 2371 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2372 | * ipr_log_generic_error - Log an adapter error. |
| 2373 | * @ioa_cfg: ioa config struct |
| 2374 | * @hostrcb: hostrcb struct |
| 2375 | * |
| 2376 | * Return value: |
| 2377 | * none |
| 2378 | **/ |
| 2379 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, |
| 2380 | struct ipr_hostrcb *hostrcb) |
| 2381 | { |
Brian King | ac719ab | 2006-11-21 10:28:42 -0600 | [diff] [blame] | 2382 | ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 2383 | be32_to_cpu(hostrcb->hcam.length)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2384 | } |
| 2385 | |
| 2386 | /** |
Wendy Xiong | 169b9ec | 2014-03-12 16:08:51 -0500 | [diff] [blame] | 2387 | * ipr_log_sis64_device_error - Log a cache error. |
| 2388 | * @ioa_cfg: ioa config struct |
| 2389 | * @hostrcb: hostrcb struct |
| 2390 | * |
| 2391 | * Return value: |
| 2392 | * none |
| 2393 | **/ |
| 2394 | static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg, |
| 2395 | struct ipr_hostrcb *hostrcb) |
| 2396 | { |
| 2397 | struct ipr_hostrcb_type_21_error *error; |
| 2398 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
| 2399 | |
| 2400 | error = &hostrcb->hcam.u.error64.u.type_21_error; |
| 2401 | |
| 2402 | ipr_err("-----Failing Device Information-----\n"); |
| 2403 | ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n", |
| 2404 | be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]), |
| 2405 | be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3])); |
| 2406 | ipr_err("Device Resource Path: %s\n", |
| 2407 | __ipr_format_res_path(error->res_path, |
| 2408 | buffer, sizeof(buffer))); |
| 2409 | error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0'; |
| 2410 | error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0'; |
| 2411 | ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc); |
| 2412 | ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc); |
| 2413 | ipr_err("SCSI Sense Data:\n"); |
| 2414 | ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data)); |
| 2415 | ipr_err("SCSI Command Descriptor Block: \n"); |
| 2416 | ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb)); |
| 2417 | |
| 2418 | ipr_err("Additional IOA Data:\n"); |
| 2419 | ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error)); |
| 2420 | } |
| 2421 | |
| 2422 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2423 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. |
| 2424 | * @ioasc: IOASC |
| 2425 | * |
| 2426 | * This function will return the index of into the ipr_error_table |
| 2427 | * for the specified IOASC. If the IOASC is not in the table, |
| 2428 | * 0 will be returned, which points to the entry used for unknown errors. |
| 2429 | * |
| 2430 | * Return value: |
| 2431 | * index into the ipr_error_table |
| 2432 | **/ |
| 2433 | static u32 ipr_get_error(u32 ioasc) |
| 2434 | { |
| 2435 | int i; |
| 2436 | |
| 2437 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 2438 | if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2439 | return i; |
| 2440 | |
| 2441 | return 0; |
| 2442 | } |
| 2443 | |
| 2444 | /** |
| 2445 | * ipr_handle_log_data - Log an adapter error. |
| 2446 | * @ioa_cfg: ioa config struct |
| 2447 | * @hostrcb: hostrcb struct |
| 2448 | * |
| 2449 | * This function logs an adapter error to the system. |
| 2450 | * |
| 2451 | * Return value: |
| 2452 | * none |
| 2453 | **/ |
| 2454 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, |
| 2455 | struct ipr_hostrcb *hostrcb) |
| 2456 | { |
| 2457 | u32 ioasc; |
| 2458 | int error_index; |
wenxiong@linux.vnet.ibm.com | 3185ea6 | 2014-09-24 16:25:47 -0500 | [diff] [blame] | 2459 | struct ipr_hostrcb_type_21_error *error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2460 | |
| 2461 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) |
| 2462 | return; |
| 2463 | |
| 2464 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) |
| 2465 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); |
| 2466 | |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2467 | if (ioa_cfg->sis64) |
| 2468 | ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); |
| 2469 | else |
| 2470 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2471 | |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2472 | if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || |
| 2473 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2474 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ |
| 2475 | scsi_report_bus_reset(ioa_cfg->host, |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2476 | hostrcb->hcam.u.error.fd_res_addr.bus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2477 | } |
| 2478 | |
| 2479 | error_index = ipr_get_error(ioasc); |
| 2480 | |
| 2481 | if (!ipr_error_table[error_index].log_hcam) |
| 2482 | return; |
| 2483 | |
wenxiong@linux.vnet.ibm.com | 3185ea6 | 2014-09-24 16:25:47 -0500 | [diff] [blame] | 2484 | if (ioasc == IPR_IOASC_HW_CMD_FAILED && |
| 2485 | hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) { |
| 2486 | error = &hostrcb->hcam.u.error64.u.type_21_error; |
| 2487 | |
| 2488 | if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST && |
| 2489 | ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
| 2490 | return; |
| 2491 | } |
| 2492 | |
Brian King | 49dc6a1 | 2006-11-21 10:28:35 -0600 | [diff] [blame] | 2493 | ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2494 | |
| 2495 | /* Set indication we have logged an error */ |
| 2496 | ioa_cfg->errors_logged++; |
| 2497 | |
Brian King | 933916f | 2007-03-29 12:43:30 -0500 | [diff] [blame] | 2498 | if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2499 | return; |
brking@us.ibm.com | cf85203 | 2005-11-01 17:00:47 -0600 | [diff] [blame] | 2500 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
| 2501 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2502 | |
| 2503 | switch (hostrcb->hcam.overlay_id) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2504 | case IPR_HOST_RCB_OVERLAY_ID_2: |
| 2505 | ipr_log_cache_error(ioa_cfg, hostrcb); |
| 2506 | break; |
| 2507 | case IPR_HOST_RCB_OVERLAY_ID_3: |
| 2508 | ipr_log_config_error(ioa_cfg, hostrcb); |
| 2509 | break; |
| 2510 | case IPR_HOST_RCB_OVERLAY_ID_4: |
| 2511 | case IPR_HOST_RCB_OVERLAY_ID_6: |
| 2512 | ipr_log_array_error(ioa_cfg, hostrcb); |
| 2513 | break; |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 2514 | case IPR_HOST_RCB_OVERLAY_ID_7: |
| 2515 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); |
| 2516 | break; |
brking@us.ibm.com | ee0f05b | 2005-11-01 17:02:15 -0600 | [diff] [blame] | 2517 | case IPR_HOST_RCB_OVERLAY_ID_12: |
| 2518 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); |
| 2519 | break; |
| 2520 | case IPR_HOST_RCB_OVERLAY_ID_13: |
| 2521 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); |
| 2522 | break; |
| 2523 | case IPR_HOST_RCB_OVERLAY_ID_14: |
| 2524 | case IPR_HOST_RCB_OVERLAY_ID_16: |
| 2525 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); |
| 2526 | break; |
| 2527 | case IPR_HOST_RCB_OVERLAY_ID_17: |
| 2528 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); |
| 2529 | break; |
Brian King | 49dc6a1 | 2006-11-21 10:28:35 -0600 | [diff] [blame] | 2530 | case IPR_HOST_RCB_OVERLAY_ID_20: |
| 2531 | ipr_log_fabric_error(ioa_cfg, hostrcb); |
| 2532 | break; |
Wendy Xiong | 169b9ec | 2014-03-12 16:08:51 -0500 | [diff] [blame] | 2533 | case IPR_HOST_RCB_OVERLAY_ID_21: |
| 2534 | ipr_log_sis64_device_error(ioa_cfg, hostrcb); |
| 2535 | break; |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2536 | case IPR_HOST_RCB_OVERLAY_ID_23: |
| 2537 | ipr_log_sis64_config_error(ioa_cfg, hostrcb); |
| 2538 | break; |
| 2539 | case IPR_HOST_RCB_OVERLAY_ID_24: |
| 2540 | case IPR_HOST_RCB_OVERLAY_ID_26: |
| 2541 | ipr_log_sis64_array_error(ioa_cfg, hostrcb); |
| 2542 | break; |
| 2543 | case IPR_HOST_RCB_OVERLAY_ID_30: |
| 2544 | ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); |
| 2545 | break; |
brking@us.ibm.com | cf85203 | 2005-11-01 17:00:47 -0600 | [diff] [blame] | 2546 | case IPR_HOST_RCB_OVERLAY_ID_1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2547 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2548 | default: |
brking@us.ibm.com | a9cfca9 | 2005-11-01 17:00:41 -0600 | [diff] [blame] | 2549 | ipr_log_generic_error(ioa_cfg, hostrcb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2550 | break; |
| 2551 | } |
| 2552 | } |
| 2553 | |
| 2554 | /** |
| 2555 | * ipr_process_error - Op done function for an adapter error log. |
| 2556 | * @ipr_cmd: ipr command struct |
| 2557 | * |
| 2558 | * This function is the op done function for an error log host |
| 2559 | * controlled async from the adapter. It will log the error and |
| 2560 | * send the HCAM back to the adapter. |
| 2561 | * |
| 2562 | * Return value: |
| 2563 | * none |
| 2564 | **/ |
| 2565 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) |
| 2566 | { |
| 2567 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 2568 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 2569 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 2570 | u32 fd_ioasc; |
| 2571 | |
| 2572 | if (ioa_cfg->sis64) |
| 2573 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); |
| 2574 | else |
| 2575 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2576 | |
| 2577 | list_del(&hostrcb->queue); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 2578 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2579 | |
| 2580 | if (!ioasc) { |
| 2581 | ipr_handle_log_data(ioa_cfg, hostrcb); |
Brian King | 65f5647 | 2007-04-26 16:00:12 -0500 | [diff] [blame] | 2582 | if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) |
| 2583 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 2584 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET && |
| 2585 | ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2586 | dev_err(&ioa_cfg->pdev->dev, |
| 2587 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); |
| 2588 | } |
| 2589 | |
| 2590 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); |
| 2591 | } |
| 2592 | |
| 2593 | /** |
| 2594 | * ipr_timeout - An internally generated op has timed out. |
| 2595 | * @ipr_cmd: ipr command struct |
| 2596 | * |
| 2597 | * This function blocks host requests and initiates an |
| 2598 | * adapter reset. |
| 2599 | * |
| 2600 | * Return value: |
| 2601 | * none |
| 2602 | **/ |
| 2603 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) |
| 2604 | { |
| 2605 | unsigned long lock_flags = 0; |
| 2606 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 2607 | |
| 2608 | ENTER; |
| 2609 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2610 | |
| 2611 | ioa_cfg->errors_logged++; |
| 2612 | dev_err(&ioa_cfg->pdev->dev, |
| 2613 | "Adapter being reset due to command timeout.\n"); |
| 2614 | |
| 2615 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 2616 | ioa_cfg->sdt_state = GET_DUMP; |
| 2617 | |
| 2618 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) |
| 2619 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 2620 | |
| 2621 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2622 | LEAVE; |
| 2623 | } |
| 2624 | |
| 2625 | /** |
| 2626 | * ipr_oper_timeout - Adapter timed out transitioning to operational |
| 2627 | * @ipr_cmd: ipr command struct |
| 2628 | * |
| 2629 | * This function blocks host requests and initiates an |
| 2630 | * adapter reset. |
| 2631 | * |
| 2632 | * Return value: |
| 2633 | * none |
| 2634 | **/ |
| 2635 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) |
| 2636 | { |
| 2637 | unsigned long lock_flags = 0; |
| 2638 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 2639 | |
| 2640 | ENTER; |
| 2641 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2642 | |
| 2643 | ioa_cfg->errors_logged++; |
| 2644 | dev_err(&ioa_cfg->pdev->dev, |
| 2645 | "Adapter timed out transitioning to operational.\n"); |
| 2646 | |
| 2647 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 2648 | ioa_cfg->sdt_state = GET_DUMP; |
| 2649 | |
| 2650 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { |
| 2651 | if (ipr_fastfail) |
| 2652 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; |
| 2653 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 2654 | } |
| 2655 | |
| 2656 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2657 | LEAVE; |
| 2658 | } |
| 2659 | |
| 2660 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2661 | * ipr_find_ses_entry - Find matching SES in SES table |
| 2662 | * @res: resource entry struct of SES |
| 2663 | * |
| 2664 | * Return value: |
| 2665 | * pointer to SES table entry / NULL on failure |
| 2666 | **/ |
| 2667 | static const struct ipr_ses_table_entry * |
| 2668 | ipr_find_ses_entry(struct ipr_resource_entry *res) |
| 2669 | { |
| 2670 | int i, j, matches; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 2671 | struct ipr_std_inq_vpids *vpids; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2672 | const struct ipr_ses_table_entry *ste = ipr_ses_table; |
| 2673 | |
| 2674 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { |
| 2675 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { |
| 2676 | if (ste->compare_product_id_byte[j] == 'X') { |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 2677 | vpids = &res->std_inq_data.vpids; |
| 2678 | if (vpids->product_id[j] == ste->product_id[j]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2679 | matches++; |
| 2680 | else |
| 2681 | break; |
| 2682 | } else |
| 2683 | matches++; |
| 2684 | } |
| 2685 | |
| 2686 | if (matches == IPR_PROD_ID_LEN) |
| 2687 | return ste; |
| 2688 | } |
| 2689 | |
| 2690 | return NULL; |
| 2691 | } |
| 2692 | |
| 2693 | /** |
| 2694 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus |
| 2695 | * @ioa_cfg: ioa config struct |
| 2696 | * @bus: SCSI bus |
| 2697 | * @bus_width: bus width |
| 2698 | * |
| 2699 | * Return value: |
| 2700 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz |
| 2701 | * For a 2-byte wide SCSI bus, the maximum transfer speed is |
| 2702 | * twice the maximum transfer rate (e.g. for a wide enabled bus, |
| 2703 | * max 160MHz = max 320MB/sec). |
| 2704 | **/ |
| 2705 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) |
| 2706 | { |
| 2707 | struct ipr_resource_entry *res; |
| 2708 | const struct ipr_ses_table_entry *ste; |
| 2709 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); |
| 2710 | |
| 2711 | /* Loop through each config table entry in the config table buffer */ |
| 2712 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 2713 | if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2714 | continue; |
| 2715 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 2716 | if (bus != res->bus) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2717 | continue; |
| 2718 | |
| 2719 | if (!(ste = ipr_find_ses_entry(res))) |
| 2720 | continue; |
| 2721 | |
| 2722 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); |
| 2723 | } |
| 2724 | |
| 2725 | return max_xfer_rate; |
| 2726 | } |
| 2727 | |
| 2728 | /** |
| 2729 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA |
| 2730 | * @ioa_cfg: ioa config struct |
| 2731 | * @max_delay: max delay in micro-seconds to wait |
| 2732 | * |
| 2733 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. |
| 2734 | * |
| 2735 | * Return value: |
| 2736 | * 0 on success / other on failure |
| 2737 | **/ |
| 2738 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) |
| 2739 | { |
| 2740 | volatile u32 pcii_reg; |
| 2741 | int delay = 1; |
| 2742 | |
| 2743 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ |
| 2744 | while (delay < max_delay) { |
| 2745 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 2746 | |
| 2747 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) |
| 2748 | return 0; |
| 2749 | |
| 2750 | /* udelay cannot be used if delay is more than a few milliseconds */ |
| 2751 | if ((delay / 1000) > MAX_UDELAY_MS) |
| 2752 | mdelay(delay / 1000); |
| 2753 | else |
| 2754 | udelay(delay); |
| 2755 | |
| 2756 | delay += delay; |
| 2757 | } |
| 2758 | return -EIO; |
| 2759 | } |
| 2760 | |
| 2761 | /** |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 2762 | * ipr_get_sis64_dump_data_section - Dump IOA memory |
| 2763 | * @ioa_cfg: ioa config struct |
| 2764 | * @start_addr: adapter address to dump |
| 2765 | * @dest: destination kernel buffer |
| 2766 | * @length_in_words: length to dump in 4 byte words |
| 2767 | * |
| 2768 | * Return value: |
| 2769 | * 0 on success |
| 2770 | **/ |
| 2771 | static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, |
| 2772 | u32 start_addr, |
| 2773 | __be32 *dest, u32 length_in_words) |
| 2774 | { |
| 2775 | int i; |
| 2776 | |
| 2777 | for (i = 0; i < length_in_words; i++) { |
| 2778 | writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); |
| 2779 | *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); |
| 2780 | dest++; |
| 2781 | } |
| 2782 | |
| 2783 | return 0; |
| 2784 | } |
| 2785 | |
| 2786 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2787 | * ipr_get_ldump_data_section - Dump IOA memory |
| 2788 | * @ioa_cfg: ioa config struct |
| 2789 | * @start_addr: adapter address to dump |
| 2790 | * @dest: destination kernel buffer |
| 2791 | * @length_in_words: length to dump in 4 byte words |
| 2792 | * |
| 2793 | * Return value: |
| 2794 | * 0 on success / -EIO on failure |
| 2795 | **/ |
| 2796 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, |
| 2797 | u32 start_addr, |
| 2798 | __be32 *dest, u32 length_in_words) |
| 2799 | { |
| 2800 | volatile u32 temp_pcii_reg; |
| 2801 | int i, delay = 0; |
| 2802 | |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 2803 | if (ioa_cfg->sis64) |
| 2804 | return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, |
| 2805 | dest, length_in_words); |
| 2806 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2807 | /* Write IOA interrupt reg starting LDUMP state */ |
| 2808 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 2809 | ioa_cfg->regs.set_uproc_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2810 | |
| 2811 | /* Wait for IO debug acknowledge */ |
| 2812 | if (ipr_wait_iodbg_ack(ioa_cfg, |
| 2813 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { |
| 2814 | dev_err(&ioa_cfg->pdev->dev, |
| 2815 | "IOA dump long data transfer timeout\n"); |
| 2816 | return -EIO; |
| 2817 | } |
| 2818 | |
| 2819 | /* Signal LDUMP interlocked - clear IO debug ack */ |
| 2820 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
| 2821 | ioa_cfg->regs.clr_interrupt_reg); |
| 2822 | |
| 2823 | /* Write Mailbox with starting address */ |
| 2824 | writel(start_addr, ioa_cfg->ioa_mailbox); |
| 2825 | |
| 2826 | /* Signal address valid - clear IOA Reset alert */ |
| 2827 | writel(IPR_UPROCI_RESET_ALERT, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 2828 | ioa_cfg->regs.clr_uproc_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2829 | |
| 2830 | for (i = 0; i < length_in_words; i++) { |
| 2831 | /* Wait for IO debug acknowledge */ |
| 2832 | if (ipr_wait_iodbg_ack(ioa_cfg, |
| 2833 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { |
| 2834 | dev_err(&ioa_cfg->pdev->dev, |
| 2835 | "IOA dump short data transfer timeout\n"); |
| 2836 | return -EIO; |
| 2837 | } |
| 2838 | |
| 2839 | /* Read data from mailbox and increment destination pointer */ |
| 2840 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); |
| 2841 | dest++; |
| 2842 | |
| 2843 | /* For all but the last word of data, signal data received */ |
| 2844 | if (i < (length_in_words - 1)) { |
| 2845 | /* Signal dump data received - Clear IO debug Ack */ |
| 2846 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
| 2847 | ioa_cfg->regs.clr_interrupt_reg); |
| 2848 | } |
| 2849 | } |
| 2850 | |
| 2851 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ |
| 2852 | writel(IPR_UPROCI_RESET_ALERT, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 2853 | ioa_cfg->regs.set_uproc_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2854 | |
| 2855 | writel(IPR_UPROCI_IO_DEBUG_ALERT, |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 2856 | ioa_cfg->regs.clr_uproc_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2857 | |
| 2858 | /* Signal dump data received - Clear IO debug Ack */ |
| 2859 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
| 2860 | ioa_cfg->regs.clr_interrupt_reg); |
| 2861 | |
| 2862 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ |
| 2863 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { |
| 2864 | temp_pcii_reg = |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 2865 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2866 | |
| 2867 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) |
| 2868 | return 0; |
| 2869 | |
| 2870 | udelay(10); |
| 2871 | delay += 10; |
| 2872 | } |
| 2873 | |
| 2874 | return 0; |
| 2875 | } |
| 2876 | |
| 2877 | #ifdef CONFIG_SCSI_IPR_DUMP |
| 2878 | /** |
| 2879 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer |
| 2880 | * @ioa_cfg: ioa config struct |
| 2881 | * @pci_address: adapter address |
| 2882 | * @length: length of data to copy |
| 2883 | * |
| 2884 | * Copy data from PCI adapter to kernel buffer. |
| 2885 | * Note: length MUST be a 4 byte multiple |
| 2886 | * Return value: |
| 2887 | * 0 on success / other on failure |
| 2888 | **/ |
| 2889 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, |
| 2890 | unsigned long pci_address, u32 length) |
| 2891 | { |
| 2892 | int bytes_copied = 0; |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 2893 | int cur_len, rc, rem_len, rem_page_len, max_dump_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2894 | __be32 *page; |
| 2895 | unsigned long lock_flags = 0; |
| 2896 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; |
| 2897 | |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 2898 | if (ioa_cfg->sis64) |
| 2899 | max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; |
| 2900 | else |
| 2901 | max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; |
| 2902 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2903 | while (bytes_copied < length && |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 2904 | (ioa_dump->hdr.len + bytes_copied) < max_dump_size) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2905 | if (ioa_dump->page_offset >= PAGE_SIZE || |
| 2906 | ioa_dump->page_offset == 0) { |
| 2907 | page = (__be32 *)__get_free_page(GFP_ATOMIC); |
| 2908 | |
| 2909 | if (!page) { |
| 2910 | ipr_trace; |
| 2911 | return bytes_copied; |
| 2912 | } |
| 2913 | |
| 2914 | ioa_dump->page_offset = 0; |
| 2915 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; |
| 2916 | ioa_dump->next_page_index++; |
| 2917 | } else |
| 2918 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; |
| 2919 | |
| 2920 | rem_len = length - bytes_copied; |
| 2921 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; |
| 2922 | cur_len = min(rem_len, rem_page_len); |
| 2923 | |
| 2924 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 2925 | if (ioa_cfg->sdt_state == ABORT_DUMP) { |
| 2926 | rc = -EIO; |
| 2927 | } else { |
| 2928 | rc = ipr_get_ldump_data_section(ioa_cfg, |
| 2929 | pci_address + bytes_copied, |
| 2930 | &page[ioa_dump->page_offset / 4], |
| 2931 | (cur_len / sizeof(u32))); |
| 2932 | } |
| 2933 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 2934 | |
| 2935 | if (!rc) { |
| 2936 | ioa_dump->page_offset += cur_len; |
| 2937 | bytes_copied += cur_len; |
| 2938 | } else { |
| 2939 | ipr_trace; |
| 2940 | break; |
| 2941 | } |
| 2942 | schedule(); |
| 2943 | } |
| 2944 | |
| 2945 | return bytes_copied; |
| 2946 | } |
| 2947 | |
| 2948 | /** |
| 2949 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. |
| 2950 | * @hdr: dump entry header struct |
| 2951 | * |
| 2952 | * Return value: |
| 2953 | * nothing |
| 2954 | **/ |
| 2955 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) |
| 2956 | { |
| 2957 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; |
| 2958 | hdr->num_elems = 1; |
| 2959 | hdr->offset = sizeof(*hdr); |
| 2960 | hdr->status = IPR_DUMP_STATUS_SUCCESS; |
| 2961 | } |
| 2962 | |
| 2963 | /** |
| 2964 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. |
| 2965 | * @ioa_cfg: ioa config struct |
| 2966 | * @driver_dump: driver dump struct |
| 2967 | * |
| 2968 | * Return value: |
| 2969 | * nothing |
| 2970 | **/ |
| 2971 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, |
| 2972 | struct ipr_driver_dump *driver_dump) |
| 2973 | { |
| 2974 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
| 2975 | |
| 2976 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); |
| 2977 | driver_dump->ioa_type_entry.hdr.len = |
| 2978 | sizeof(struct ipr_dump_ioa_type_entry) - |
| 2979 | sizeof(struct ipr_dump_entry_header); |
| 2980 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
| 2981 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; |
| 2982 | driver_dump->ioa_type_entry.type = ioa_cfg->type; |
| 2983 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | |
| 2984 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | |
| 2985 | ucode_vpd->minor_release[1]; |
| 2986 | driver_dump->hdr.num_entries++; |
| 2987 | } |
| 2988 | |
| 2989 | /** |
| 2990 | * ipr_dump_version_data - Fill in the driver version in the dump. |
| 2991 | * @ioa_cfg: ioa config struct |
| 2992 | * @driver_dump: driver dump struct |
| 2993 | * |
| 2994 | * Return value: |
| 2995 | * nothing |
| 2996 | **/ |
| 2997 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, |
| 2998 | struct ipr_driver_dump *driver_dump) |
| 2999 | { |
| 3000 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); |
| 3001 | driver_dump->version_entry.hdr.len = |
| 3002 | sizeof(struct ipr_dump_version_entry) - |
| 3003 | sizeof(struct ipr_dump_entry_header); |
| 3004 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; |
| 3005 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; |
| 3006 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); |
| 3007 | driver_dump->hdr.num_entries++; |
| 3008 | } |
| 3009 | |
| 3010 | /** |
| 3011 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. |
| 3012 | * @ioa_cfg: ioa config struct |
| 3013 | * @driver_dump: driver dump struct |
| 3014 | * |
| 3015 | * Return value: |
| 3016 | * nothing |
| 3017 | **/ |
| 3018 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, |
| 3019 | struct ipr_driver_dump *driver_dump) |
| 3020 | { |
| 3021 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); |
| 3022 | driver_dump->trace_entry.hdr.len = |
| 3023 | sizeof(struct ipr_dump_trace_entry) - |
| 3024 | sizeof(struct ipr_dump_entry_header); |
| 3025 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
| 3026 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; |
| 3027 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); |
| 3028 | driver_dump->hdr.num_entries++; |
| 3029 | } |
| 3030 | |
| 3031 | /** |
| 3032 | * ipr_dump_location_data - Fill in the IOA location in the dump. |
| 3033 | * @ioa_cfg: ioa config struct |
| 3034 | * @driver_dump: driver dump struct |
| 3035 | * |
| 3036 | * Return value: |
| 3037 | * nothing |
| 3038 | **/ |
| 3039 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, |
| 3040 | struct ipr_driver_dump *driver_dump) |
| 3041 | { |
| 3042 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); |
| 3043 | driver_dump->location_entry.hdr.len = |
| 3044 | sizeof(struct ipr_dump_location_entry) - |
| 3045 | sizeof(struct ipr_dump_entry_header); |
| 3046 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; |
| 3047 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; |
Kay Sievers | 71610f5 | 2008-12-03 22:41:36 +0100 | [diff] [blame] | 3048 | strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3049 | driver_dump->hdr.num_entries++; |
| 3050 | } |
| 3051 | |
| 3052 | /** |
| 3053 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. |
| 3054 | * @ioa_cfg: ioa config struct |
| 3055 | * @dump: dump struct |
| 3056 | * |
| 3057 | * Return value: |
| 3058 | * nothing |
| 3059 | **/ |
| 3060 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) |
| 3061 | { |
| 3062 | unsigned long start_addr, sdt_word; |
| 3063 | unsigned long lock_flags = 0; |
| 3064 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; |
| 3065 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 3066 | u32 num_entries, max_num_entries, start_off, end_off; |
| 3067 | u32 max_dump_size, bytes_to_copy, bytes_copied, rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3068 | struct ipr_sdt *sdt; |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 3069 | int valid = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3070 | int i; |
| 3071 | |
| 3072 | ENTER; |
| 3073 | |
| 3074 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3075 | |
Brian King | 41e9a69 | 2011-09-21 08:51:11 -0500 | [diff] [blame] | 3076 | if (ioa_cfg->sdt_state != READ_DUMP) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3077 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3078 | return; |
| 3079 | } |
| 3080 | |
Wayne Boyer | 110def8 | 2010-11-04 09:36:16 -0700 | [diff] [blame] | 3081 | if (ioa_cfg->sis64) { |
| 3082 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3083 | ssleep(IPR_DUMP_DELAY_SECONDS); |
| 3084 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3085 | } |
| 3086 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3087 | start_addr = readl(ioa_cfg->ioa_mailbox); |
| 3088 | |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 3089 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3090 | dev_err(&ioa_cfg->pdev->dev, |
| 3091 | "Invalid dump table format: %lx\n", start_addr); |
| 3092 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3093 | return; |
| 3094 | } |
| 3095 | |
| 3096 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); |
| 3097 | |
| 3098 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; |
| 3099 | |
| 3100 | /* Initialize the overall dump header */ |
| 3101 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); |
| 3102 | driver_dump->hdr.num_entries = 1; |
| 3103 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); |
| 3104 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; |
| 3105 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; |
| 3106 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; |
| 3107 | |
| 3108 | ipr_dump_version_data(ioa_cfg, driver_dump); |
| 3109 | ipr_dump_location_data(ioa_cfg, driver_dump); |
| 3110 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); |
| 3111 | ipr_dump_trace_data(ioa_cfg, driver_dump); |
| 3112 | |
| 3113 | /* Update dump_header */ |
| 3114 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); |
| 3115 | |
| 3116 | /* IOA Dump entry */ |
| 3117 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3118 | ioa_dump->hdr.len = 0; |
| 3119 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
| 3120 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; |
| 3121 | |
| 3122 | /* First entries in sdt are actually a list of dump addresses and |
| 3123 | lengths to gather the real dump data. sdt represents the pointer |
| 3124 | to the ioa generated dump table. Dump data will be extracted based |
| 3125 | on entries in this table */ |
| 3126 | sdt = &ioa_dump->sdt; |
| 3127 | |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 3128 | if (ioa_cfg->sis64) { |
| 3129 | max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES; |
| 3130 | max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; |
| 3131 | } else { |
| 3132 | max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES; |
| 3133 | max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; |
| 3134 | } |
| 3135 | |
| 3136 | bytes_to_copy = offsetof(struct ipr_sdt, entry) + |
| 3137 | (max_num_entries * sizeof(struct ipr_sdt_entry)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3138 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 3139 | bytes_to_copy / sizeof(__be32)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3140 | |
| 3141 | /* Smart Dump table is ready to use and the first entry is valid */ |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 3142 | if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && |
| 3143 | (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3144 | dev_err(&ioa_cfg->pdev->dev, |
| 3145 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", |
| 3146 | rc, be32_to_cpu(sdt->hdr.state)); |
| 3147 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; |
| 3148 | ioa_cfg->sdt_state = DUMP_OBTAINED; |
| 3149 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3150 | return; |
| 3151 | } |
| 3152 | |
| 3153 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); |
| 3154 | |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 3155 | if (num_entries > max_num_entries) |
| 3156 | num_entries = max_num_entries; |
| 3157 | |
| 3158 | /* Update dump length to the actual data to be copied */ |
| 3159 | dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header); |
| 3160 | if (ioa_cfg->sis64) |
| 3161 | dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry); |
| 3162 | else |
| 3163 | dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3164 | |
| 3165 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3166 | |
| 3167 | for (i = 0; i < num_entries; i++) { |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 3168 | if (ioa_dump->hdr.len > max_dump_size) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3169 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
| 3170 | break; |
| 3171 | } |
| 3172 | |
| 3173 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 3174 | sdt_word = be32_to_cpu(sdt->entry[i].start_token); |
| 3175 | if (ioa_cfg->sis64) |
| 3176 | bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); |
| 3177 | else { |
| 3178 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; |
| 3179 | end_off = be32_to_cpu(sdt->entry[i].end_token); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3180 | |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 3181 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) |
| 3182 | bytes_to_copy = end_off - start_off; |
| 3183 | else |
| 3184 | valid = 0; |
| 3185 | } |
| 3186 | if (valid) { |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 3187 | if (bytes_to_copy > max_dump_size) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3188 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; |
| 3189 | continue; |
| 3190 | } |
| 3191 | |
| 3192 | /* Copy data from adapter to driver buffers */ |
| 3193 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, |
| 3194 | bytes_to_copy); |
| 3195 | |
| 3196 | ioa_dump->hdr.len += bytes_copied; |
| 3197 | |
| 3198 | if (bytes_copied != bytes_to_copy) { |
| 3199 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
| 3200 | break; |
| 3201 | } |
| 3202 | } |
| 3203 | } |
| 3204 | } |
| 3205 | |
| 3206 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); |
| 3207 | |
| 3208 | /* Update dump_header */ |
| 3209 | driver_dump->hdr.len += ioa_dump->hdr.len; |
| 3210 | wmb(); |
| 3211 | ioa_cfg->sdt_state = DUMP_OBTAINED; |
| 3212 | LEAVE; |
| 3213 | } |
| 3214 | |
| 3215 | #else |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 3216 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3217 | #endif |
| 3218 | |
| 3219 | /** |
| 3220 | * ipr_release_dump - Free adapter dump memory |
| 3221 | * @kref: kref struct |
| 3222 | * |
| 3223 | * Return value: |
| 3224 | * nothing |
| 3225 | **/ |
| 3226 | static void ipr_release_dump(struct kref *kref) |
| 3227 | { |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 3228 | struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3229 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; |
| 3230 | unsigned long lock_flags = 0; |
| 3231 | int i; |
| 3232 | |
| 3233 | ENTER; |
| 3234 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3235 | ioa_cfg->dump = NULL; |
| 3236 | ioa_cfg->sdt_state = INACTIVE; |
| 3237 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3238 | |
| 3239 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) |
| 3240 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); |
| 3241 | |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 3242 | vfree(dump->ioa_dump.ioa_data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3243 | kfree(dump); |
| 3244 | LEAVE; |
| 3245 | } |
| 3246 | |
| 3247 | /** |
| 3248 | * ipr_worker_thread - Worker thread |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3249 | * @work: ioa config struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3250 | * |
| 3251 | * Called at task level from a work thread. This function takes care |
| 3252 | * of adding and removing device from the mid-layer as configuration |
| 3253 | * changes are detected by the adapter. |
| 3254 | * |
| 3255 | * Return value: |
| 3256 | * nothing |
| 3257 | **/ |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3258 | static void ipr_worker_thread(struct work_struct *work) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3259 | { |
| 3260 | unsigned long lock_flags; |
| 3261 | struct ipr_resource_entry *res; |
| 3262 | struct scsi_device *sdev; |
| 3263 | struct ipr_dump *dump; |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 3264 | struct ipr_ioa_cfg *ioa_cfg = |
| 3265 | container_of(work, struct ipr_ioa_cfg, work_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3266 | u8 bus, target, lun; |
| 3267 | int did_work; |
| 3268 | |
| 3269 | ENTER; |
| 3270 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3271 | |
Brian King | 41e9a69 | 2011-09-21 08:51:11 -0500 | [diff] [blame] | 3272 | if (ioa_cfg->sdt_state == READ_DUMP) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3273 | dump = ioa_cfg->dump; |
| 3274 | if (!dump) { |
| 3275 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3276 | return; |
| 3277 | } |
| 3278 | kref_get(&dump->kref); |
| 3279 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3280 | ipr_get_ioa_dump(ioa_cfg, dump); |
| 3281 | kref_put(&dump->kref, ipr_release_dump); |
| 3282 | |
| 3283 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Brian King | 4c647e9 | 2011-10-15 09:08:56 -0500 | [diff] [blame] | 3284 | if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3285 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 3286 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3287 | return; |
| 3288 | } |
| 3289 | |
| 3290 | restart: |
| 3291 | do { |
| 3292 | did_work = 0; |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 3293 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3294 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3295 | return; |
| 3296 | } |
| 3297 | |
| 3298 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 3299 | if (res->del_from_ml && res->sdev) { |
| 3300 | did_work = 1; |
| 3301 | sdev = res->sdev; |
| 3302 | if (!scsi_device_get(sdev)) { |
Kleber Sacilotto de Souza | 5767a1c | 2011-02-14 20:19:31 -0200 | [diff] [blame] | 3303 | if (!res->add_to_ml) |
| 3304 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
| 3305 | else |
| 3306 | res->del_from_ml = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3307 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3308 | scsi_remove_device(sdev); |
| 3309 | scsi_device_put(sdev); |
| 3310 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3311 | } |
| 3312 | break; |
| 3313 | } |
| 3314 | } |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 3315 | } while (did_work); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3316 | |
| 3317 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 3318 | if (res->add_to_ml) { |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 3319 | bus = res->bus; |
| 3320 | target = res->target; |
| 3321 | lun = res->lun; |
Brian King | 1121b79 | 2006-03-29 09:37:16 -0600 | [diff] [blame] | 3322 | res->add_to_ml = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3323 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3324 | scsi_add_device(ioa_cfg->host, bus, target, lun); |
| 3325 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3326 | goto restart; |
| 3327 | } |
| 3328 | } |
| 3329 | |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 3330 | ioa_cfg->scan_done = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3331 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3332 | kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3333 | LEAVE; |
| 3334 | } |
| 3335 | |
| 3336 | #ifdef CONFIG_SCSI_IPR_TRACE |
| 3337 | /** |
| 3338 | * ipr_read_trace - Dump the adapter trace |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 3339 | * @filp: open sysfs file |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3340 | * @kobj: kobject struct |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 3341 | * @bin_attr: bin_attribute struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3342 | * @buf: buffer |
| 3343 | * @off: offset |
| 3344 | * @count: buffer size |
| 3345 | * |
| 3346 | * Return value: |
| 3347 | * number of bytes printed to buffer |
| 3348 | **/ |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 3349 | static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 3350 | struct bin_attribute *bin_attr, |
| 3351 | char *buf, loff_t off, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3352 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3353 | struct device *dev = container_of(kobj, struct device, kobj); |
| 3354 | struct Scsi_Host *shost = class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3355 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3356 | unsigned long lock_flags = 0; |
Akinobu Mita | d777aaf | 2008-09-22 14:56:47 -0700 | [diff] [blame] | 3357 | ssize_t ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3358 | |
| 3359 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Akinobu Mita | d777aaf | 2008-09-22 14:56:47 -0700 | [diff] [blame] | 3360 | ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, |
| 3361 | IPR_TRACE_SIZE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3362 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Akinobu Mita | d777aaf | 2008-09-22 14:56:47 -0700 | [diff] [blame] | 3363 | |
| 3364 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3365 | } |
| 3366 | |
| 3367 | static struct bin_attribute ipr_trace_attr = { |
| 3368 | .attr = { |
| 3369 | .name = "trace", |
| 3370 | .mode = S_IRUGO, |
| 3371 | }, |
| 3372 | .size = 0, |
| 3373 | .read = ipr_read_trace, |
| 3374 | }; |
| 3375 | #endif |
| 3376 | |
| 3377 | /** |
| 3378 | * ipr_show_fw_version - Show the firmware version |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3379 | * @dev: class device struct |
| 3380 | * @buf: buffer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3381 | * |
| 3382 | * Return value: |
| 3383 | * number of bytes printed to buffer |
| 3384 | **/ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3385 | static ssize_t ipr_show_fw_version(struct device *dev, |
| 3386 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3387 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3388 | struct Scsi_Host *shost = class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3389 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3390 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
| 3391 | unsigned long lock_flags = 0; |
| 3392 | int len; |
| 3393 | |
| 3394 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3395 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", |
| 3396 | ucode_vpd->major_release, ucode_vpd->card_type, |
| 3397 | ucode_vpd->minor_release[0], |
| 3398 | ucode_vpd->minor_release[1]); |
| 3399 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3400 | return len; |
| 3401 | } |
| 3402 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3403 | static struct device_attribute ipr_fw_version_attr = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3404 | .attr = { |
| 3405 | .name = "fw_version", |
| 3406 | .mode = S_IRUGO, |
| 3407 | }, |
| 3408 | .show = ipr_show_fw_version, |
| 3409 | }; |
| 3410 | |
| 3411 | /** |
| 3412 | * ipr_show_log_level - Show the adapter's error logging level |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3413 | * @dev: class device struct |
| 3414 | * @buf: buffer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3415 | * |
| 3416 | * Return value: |
| 3417 | * number of bytes printed to buffer |
| 3418 | **/ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3419 | static ssize_t ipr_show_log_level(struct device *dev, |
| 3420 | struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3421 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3422 | struct Scsi_Host *shost = class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3423 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3424 | unsigned long lock_flags = 0; |
| 3425 | int len; |
| 3426 | |
| 3427 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3428 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); |
| 3429 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3430 | return len; |
| 3431 | } |
| 3432 | |
| 3433 | /** |
| 3434 | * ipr_store_log_level - Change the adapter's error logging level |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3435 | * @dev: class device struct |
| 3436 | * @buf: buffer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3437 | * |
| 3438 | * Return value: |
| 3439 | * number of bytes printed to buffer |
| 3440 | **/ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3441 | static ssize_t ipr_store_log_level(struct device *dev, |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 3442 | struct device_attribute *attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3443 | const char *buf, size_t count) |
| 3444 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3445 | struct Scsi_Host *shost = class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3446 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3447 | unsigned long lock_flags = 0; |
| 3448 | |
| 3449 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3450 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); |
| 3451 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3452 | return strlen(buf); |
| 3453 | } |
| 3454 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3455 | static struct device_attribute ipr_log_level_attr = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3456 | .attr = { |
| 3457 | .name = "log_level", |
| 3458 | .mode = S_IRUGO | S_IWUSR, |
| 3459 | }, |
| 3460 | .show = ipr_show_log_level, |
| 3461 | .store = ipr_store_log_level |
| 3462 | }; |
| 3463 | |
| 3464 | /** |
| 3465 | * ipr_store_diagnostics - IOA Diagnostics interface |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3466 | * @dev: device struct |
| 3467 | * @buf: buffer |
| 3468 | * @count: buffer size |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3469 | * |
| 3470 | * This function will reset the adapter and wait a reasonable |
| 3471 | * amount of time for any errors that the adapter might log. |
| 3472 | * |
| 3473 | * Return value: |
| 3474 | * count on success / other on failure |
| 3475 | **/ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3476 | static ssize_t ipr_store_diagnostics(struct device *dev, |
| 3477 | struct device_attribute *attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3478 | const char *buf, size_t count) |
| 3479 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3480 | struct Scsi_Host *shost = class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3481 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3482 | unsigned long lock_flags = 0; |
| 3483 | int rc = count; |
| 3484 | |
| 3485 | if (!capable(CAP_SYS_ADMIN)) |
| 3486 | return -EACCES; |
| 3487 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3488 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 3489 | while (ioa_cfg->in_reset_reload) { |
Brian King | 970ea29 | 2007-04-26 16:00:06 -0500 | [diff] [blame] | 3490 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3491 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 3492 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3493 | } |
| 3494 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3495 | ioa_cfg->errors_logged = 0; |
| 3496 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 3497 | |
| 3498 | if (ioa_cfg->in_reset_reload) { |
| 3499 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3500 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 3501 | |
| 3502 | /* Wait for a second for any errors to be logged */ |
| 3503 | msleep(1000); |
| 3504 | } else { |
| 3505 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3506 | return -EIO; |
| 3507 | } |
| 3508 | |
| 3509 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3510 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) |
| 3511 | rc = -EIO; |
| 3512 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3513 | |
| 3514 | return rc; |
| 3515 | } |
| 3516 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3517 | static struct device_attribute ipr_diagnostics_attr = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3518 | .attr = { |
| 3519 | .name = "run_diagnostics", |
| 3520 | .mode = S_IWUSR, |
| 3521 | }, |
| 3522 | .store = ipr_store_diagnostics |
| 3523 | }; |
| 3524 | |
| 3525 | /** |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3526 | * ipr_show_adapter_state - Show the adapter's state |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3527 | * @class_dev: device struct |
| 3528 | * @buf: buffer |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3529 | * |
| 3530 | * Return value: |
| 3531 | * number of bytes printed to buffer |
| 3532 | **/ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3533 | static ssize_t ipr_show_adapter_state(struct device *dev, |
| 3534 | struct device_attribute *attr, char *buf) |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3535 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3536 | struct Scsi_Host *shost = class_to_shost(dev); |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3537 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3538 | unsigned long lock_flags = 0; |
| 3539 | int len; |
| 3540 | |
| 3541 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 3542 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3543 | len = snprintf(buf, PAGE_SIZE, "offline\n"); |
| 3544 | else |
| 3545 | len = snprintf(buf, PAGE_SIZE, "online\n"); |
| 3546 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3547 | return len; |
| 3548 | } |
| 3549 | |
| 3550 | /** |
| 3551 | * ipr_store_adapter_state - Change adapter state |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3552 | * @dev: device struct |
| 3553 | * @buf: buffer |
| 3554 | * @count: buffer size |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3555 | * |
| 3556 | * This function will change the adapter's state. |
| 3557 | * |
| 3558 | * Return value: |
| 3559 | * count on success / other on failure |
| 3560 | **/ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3561 | static ssize_t ipr_store_adapter_state(struct device *dev, |
| 3562 | struct device_attribute *attr, |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3563 | const char *buf, size_t count) |
| 3564 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3565 | struct Scsi_Host *shost = class_to_shost(dev); |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3566 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3567 | unsigned long lock_flags; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 3568 | int result = count, i; |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3569 | |
| 3570 | if (!capable(CAP_SYS_ADMIN)) |
| 3571 | return -EACCES; |
| 3572 | |
| 3573 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 3574 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && |
| 3575 | !strncmp(buf, "online", 6)) { |
| 3576 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 3577 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 3578 | ioa_cfg->hrrq[i].ioa_is_dead = 0; |
| 3579 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 3580 | } |
| 3581 | wmb(); |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3582 | ioa_cfg->reset_retries = 0; |
| 3583 | ioa_cfg->in_ioa_bringdown = 0; |
| 3584 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 3585 | } |
| 3586 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3587 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 3588 | |
| 3589 | return result; |
| 3590 | } |
| 3591 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3592 | static struct device_attribute ipr_ioa_state_attr = { |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3593 | .attr = { |
Brian King | 49dd096 | 2008-04-28 17:36:20 -0500 | [diff] [blame] | 3594 | .name = "online_state", |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 3595 | .mode = S_IRUGO | S_IWUSR, |
| 3596 | }, |
| 3597 | .show = ipr_show_adapter_state, |
| 3598 | .store = ipr_store_adapter_state |
| 3599 | }; |
| 3600 | |
| 3601 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3602 | * ipr_store_reset_adapter - Reset the adapter |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3603 | * @dev: device struct |
| 3604 | * @buf: buffer |
| 3605 | * @count: buffer size |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3606 | * |
| 3607 | * This function will reset the adapter. |
| 3608 | * |
| 3609 | * Return value: |
| 3610 | * count on success / other on failure |
| 3611 | **/ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3612 | static ssize_t ipr_store_reset_adapter(struct device *dev, |
| 3613 | struct device_attribute *attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3614 | const char *buf, size_t count) |
| 3615 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3616 | struct Scsi_Host *shost = class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3617 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3618 | unsigned long lock_flags; |
| 3619 | int result = count; |
| 3620 | |
| 3621 | if (!capable(CAP_SYS_ADMIN)) |
| 3622 | return -EACCES; |
| 3623 | |
| 3624 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3625 | if (!ioa_cfg->in_reset_reload) |
| 3626 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 3627 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3628 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 3629 | |
| 3630 | return result; |
| 3631 | } |
| 3632 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3633 | static struct device_attribute ipr_ioa_reset_attr = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3634 | .attr = { |
| 3635 | .name = "reset_host", |
| 3636 | .mode = S_IWUSR, |
| 3637 | }, |
| 3638 | .store = ipr_store_reset_adapter |
| 3639 | }; |
| 3640 | |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 3641 | static int ipr_iopoll(struct irq_poll *iop, int budget); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3642 | /** |
| 3643 | * ipr_show_iopoll_weight - Show ipr polling mode |
| 3644 | * @dev: class device struct |
| 3645 | * @buf: buffer |
| 3646 | * |
| 3647 | * Return value: |
| 3648 | * number of bytes printed to buffer |
| 3649 | **/ |
| 3650 | static ssize_t ipr_show_iopoll_weight(struct device *dev, |
| 3651 | struct device_attribute *attr, char *buf) |
| 3652 | { |
| 3653 | struct Scsi_Host *shost = class_to_shost(dev); |
| 3654 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3655 | unsigned long lock_flags = 0; |
| 3656 | int len; |
| 3657 | |
| 3658 | spin_lock_irqsave(shost->host_lock, lock_flags); |
| 3659 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight); |
| 3660 | spin_unlock_irqrestore(shost->host_lock, lock_flags); |
| 3661 | |
| 3662 | return len; |
| 3663 | } |
| 3664 | |
| 3665 | /** |
| 3666 | * ipr_store_iopoll_weight - Change the adapter's polling mode |
| 3667 | * @dev: class device struct |
| 3668 | * @buf: buffer |
| 3669 | * |
| 3670 | * Return value: |
| 3671 | * number of bytes printed to buffer |
| 3672 | **/ |
| 3673 | static ssize_t ipr_store_iopoll_weight(struct device *dev, |
| 3674 | struct device_attribute *attr, |
| 3675 | const char *buf, size_t count) |
| 3676 | { |
| 3677 | struct Scsi_Host *shost = class_to_shost(dev); |
| 3678 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 3679 | unsigned long user_iopoll_weight; |
| 3680 | unsigned long lock_flags = 0; |
| 3681 | int i; |
| 3682 | |
| 3683 | if (!ioa_cfg->sis64) { |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 3684 | dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n"); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3685 | return -EINVAL; |
| 3686 | } |
| 3687 | if (kstrtoul(buf, 10, &user_iopoll_weight)) |
| 3688 | return -EINVAL; |
| 3689 | |
| 3690 | if (user_iopoll_weight > 256) { |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 3691 | dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n"); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3692 | return -EINVAL; |
| 3693 | } |
| 3694 | |
| 3695 | if (user_iopoll_weight == ioa_cfg->iopoll_weight) { |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 3696 | dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n"); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3697 | return strlen(buf); |
| 3698 | } |
| 3699 | |
Jens Axboe | 89f8b33 | 2014-03-13 09:38:42 -0600 | [diff] [blame] | 3700 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3701 | for (i = 1; i < ioa_cfg->hrrq_num; i++) |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 3702 | irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3703 | } |
| 3704 | |
| 3705 | spin_lock_irqsave(shost->host_lock, lock_flags); |
| 3706 | ioa_cfg->iopoll_weight = user_iopoll_weight; |
Jens Axboe | 89f8b33 | 2014-03-13 09:38:42 -0600 | [diff] [blame] | 3707 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3708 | for (i = 1; i < ioa_cfg->hrrq_num; i++) { |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 3709 | irq_poll_init(&ioa_cfg->hrrq[i].iopoll, |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3710 | ioa_cfg->iopoll_weight, ipr_iopoll); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 3711 | } |
| 3712 | } |
| 3713 | spin_unlock_irqrestore(shost->host_lock, lock_flags); |
| 3714 | |
| 3715 | return strlen(buf); |
| 3716 | } |
| 3717 | |
| 3718 | static struct device_attribute ipr_iopoll_weight_attr = { |
| 3719 | .attr = { |
| 3720 | .name = "iopoll_weight", |
| 3721 | .mode = S_IRUGO | S_IWUSR, |
| 3722 | }, |
| 3723 | .show = ipr_show_iopoll_weight, |
| 3724 | .store = ipr_store_iopoll_weight |
| 3725 | }; |
| 3726 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3727 | /** |
| 3728 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer |
| 3729 | * @buf_len: buffer length |
| 3730 | * |
| 3731 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather |
| 3732 | * list to use for microcode download |
| 3733 | * |
| 3734 | * Return value: |
| 3735 | * pointer to sglist / NULL on failure |
| 3736 | **/ |
| 3737 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) |
| 3738 | { |
| 3739 | int sg_size, order, bsize_elem, num_elem, i, j; |
| 3740 | struct ipr_sglist *sglist; |
| 3741 | struct scatterlist *scatterlist; |
| 3742 | struct page *page; |
| 3743 | |
| 3744 | /* Get the minimum size per scatter/gather element */ |
| 3745 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); |
| 3746 | |
| 3747 | /* Get the actual size per element */ |
| 3748 | order = get_order(sg_size); |
| 3749 | |
| 3750 | /* Determine the actual number of bytes per element */ |
| 3751 | bsize_elem = PAGE_SIZE * (1 << order); |
| 3752 | |
| 3753 | /* Determine the actual number of sg entries needed */ |
| 3754 | if (buf_len % bsize_elem) |
| 3755 | num_elem = (buf_len / bsize_elem) + 1; |
| 3756 | else |
| 3757 | num_elem = buf_len / bsize_elem; |
| 3758 | |
| 3759 | /* Allocate a scatter/gather list for the DMA */ |
brking@us.ibm.com | 0bc42e3 | 2005-11-01 17:01:20 -0600 | [diff] [blame] | 3760 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3761 | (sizeof(struct scatterlist) * (num_elem - 1)), |
| 3762 | GFP_KERNEL); |
| 3763 | |
| 3764 | if (sglist == NULL) { |
| 3765 | ipr_trace; |
| 3766 | return NULL; |
| 3767 | } |
| 3768 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3769 | scatterlist = sglist->scatterlist; |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 3770 | sg_init_table(scatterlist, num_elem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3771 | |
| 3772 | sglist->order = order; |
| 3773 | sglist->num_sg = num_elem; |
| 3774 | |
| 3775 | /* Allocate a bunch of sg elements */ |
| 3776 | for (i = 0; i < num_elem; i++) { |
| 3777 | page = alloc_pages(GFP_KERNEL, order); |
| 3778 | if (!page) { |
| 3779 | ipr_trace; |
| 3780 | |
| 3781 | /* Free up what we already allocated */ |
| 3782 | for (j = i - 1; j >= 0; j--) |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 3783 | __free_pages(sg_page(&scatterlist[j]), order); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3784 | kfree(sglist); |
| 3785 | return NULL; |
| 3786 | } |
| 3787 | |
Jens Axboe | 642f149 | 2007-10-24 11:20:47 +0200 | [diff] [blame] | 3788 | sg_set_page(&scatterlist[i], page, 0, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3789 | } |
| 3790 | |
| 3791 | return sglist; |
| 3792 | } |
| 3793 | |
| 3794 | /** |
| 3795 | * ipr_free_ucode_buffer - Frees a microcode download buffer |
| 3796 | * @p_dnld: scatter/gather list pointer |
| 3797 | * |
| 3798 | * Free a DMA'able ucode download buffer previously allocated with |
| 3799 | * ipr_alloc_ucode_buffer |
| 3800 | * |
| 3801 | * Return value: |
| 3802 | * nothing |
| 3803 | **/ |
| 3804 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) |
| 3805 | { |
| 3806 | int i; |
| 3807 | |
| 3808 | for (i = 0; i < sglist->num_sg; i++) |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 3809 | __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3810 | |
| 3811 | kfree(sglist); |
| 3812 | } |
| 3813 | |
| 3814 | /** |
| 3815 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer |
| 3816 | * @sglist: scatter/gather list pointer |
| 3817 | * @buffer: buffer pointer |
| 3818 | * @len: buffer length |
| 3819 | * |
| 3820 | * Copy a microcode image from a user buffer into a buffer allocated by |
| 3821 | * ipr_alloc_ucode_buffer |
| 3822 | * |
| 3823 | * Return value: |
| 3824 | * 0 on success / other on failure |
| 3825 | **/ |
| 3826 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, |
| 3827 | u8 *buffer, u32 len) |
| 3828 | { |
| 3829 | int bsize_elem, i, result = 0; |
| 3830 | struct scatterlist *scatterlist; |
| 3831 | void *kaddr; |
| 3832 | |
| 3833 | /* Determine the actual number of bytes per element */ |
| 3834 | bsize_elem = PAGE_SIZE * (1 << sglist->order); |
| 3835 | |
| 3836 | scatterlist = sglist->scatterlist; |
| 3837 | |
| 3838 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 3839 | struct page *page = sg_page(&scatterlist[i]); |
| 3840 | |
| 3841 | kaddr = kmap(page); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3842 | memcpy(kaddr, buffer, bsize_elem); |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 3843 | kunmap(page); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3844 | |
| 3845 | scatterlist[i].length = bsize_elem; |
| 3846 | |
| 3847 | if (result != 0) { |
| 3848 | ipr_trace; |
| 3849 | return result; |
| 3850 | } |
| 3851 | } |
| 3852 | |
| 3853 | if (len % bsize_elem) { |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 3854 | struct page *page = sg_page(&scatterlist[i]); |
| 3855 | |
| 3856 | kaddr = kmap(page); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3857 | memcpy(kaddr, buffer, len % bsize_elem); |
Jens Axboe | 45711f1 | 2007-10-22 21:19:53 +0200 | [diff] [blame] | 3858 | kunmap(page); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3859 | |
| 3860 | scatterlist[i].length = len % bsize_elem; |
| 3861 | } |
| 3862 | |
| 3863 | sglist->buffer_len = len; |
| 3864 | return result; |
| 3865 | } |
| 3866 | |
| 3867 | /** |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 3868 | * ipr_build_ucode_ioadl64 - Build a microcode download IOADL |
| 3869 | * @ipr_cmd: ipr command struct |
| 3870 | * @sglist: scatter/gather list |
| 3871 | * |
| 3872 | * Builds a microcode download IOA data list (IOADL). |
| 3873 | * |
| 3874 | **/ |
| 3875 | static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, |
| 3876 | struct ipr_sglist *sglist) |
| 3877 | { |
| 3878 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 3879 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
| 3880 | struct scatterlist *scatterlist = sglist->scatterlist; |
| 3881 | int i; |
| 3882 | |
| 3883 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
| 3884 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 3885 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); |
| 3886 | |
| 3887 | ioarcb->ioadl_len = |
| 3888 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); |
| 3889 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { |
| 3890 | ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); |
| 3891 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); |
| 3892 | ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); |
| 3893 | } |
| 3894 | |
| 3895 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
| 3896 | } |
| 3897 | |
| 3898 | /** |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 3899 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3900 | * @ipr_cmd: ipr command struct |
| 3901 | * @sglist: scatter/gather list |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3902 | * |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 3903 | * Builds a microcode download IOA data list (IOADL). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3904 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3905 | **/ |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 3906 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
| 3907 | struct ipr_sglist *sglist) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3908 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3909 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 3910 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3911 | struct scatterlist *scatterlist = sglist->scatterlist; |
| 3912 | int i; |
| 3913 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 3914 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3915 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 3916 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); |
| 3917 | |
| 3918 | ioarcb->ioadl_len = |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3919 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
| 3920 | |
| 3921 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { |
| 3922 | ioadl[i].flags_and_data_len = |
| 3923 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); |
| 3924 | ioadl[i].address = |
| 3925 | cpu_to_be32(sg_dma_address(&scatterlist[i])); |
| 3926 | } |
| 3927 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 3928 | ioadl[i-1].flags_and_data_len |= |
| 3929 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
| 3930 | } |
| 3931 | |
| 3932 | /** |
| 3933 | * ipr_update_ioa_ucode - Update IOA's microcode |
| 3934 | * @ioa_cfg: ioa config struct |
| 3935 | * @sglist: scatter/gather list |
| 3936 | * |
| 3937 | * Initiate an adapter reset to update the IOA's microcode |
| 3938 | * |
| 3939 | * Return value: |
| 3940 | * 0 on success / -EIO on failure |
| 3941 | **/ |
| 3942 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, |
| 3943 | struct ipr_sglist *sglist) |
| 3944 | { |
| 3945 | unsigned long lock_flags; |
| 3946 | |
| 3947 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 3948 | while (ioa_cfg->in_reset_reload) { |
Brian King | 970ea29 | 2007-04-26 16:00:06 -0500 | [diff] [blame] | 3949 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3950 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 3951 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3952 | } |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 3953 | |
| 3954 | if (ioa_cfg->ucode_sglist) { |
| 3955 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3956 | dev_err(&ioa_cfg->pdev->dev, |
| 3957 | "Microcode download already in progress\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3958 | return -EIO; |
| 3959 | } |
| 3960 | |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 3961 | sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev, |
| 3962 | sglist->scatterlist, sglist->num_sg, |
| 3963 | DMA_TO_DEVICE); |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 3964 | |
| 3965 | if (!sglist->num_dma_sg) { |
| 3966 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3967 | dev_err(&ioa_cfg->pdev->dev, |
| 3968 | "Failed to map microcode download buffer!\n"); |
| 3969 | return -EIO; |
| 3970 | } |
| 3971 | |
| 3972 | ioa_cfg->ucode_sglist = sglist; |
| 3973 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 3974 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 3975 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 3976 | |
| 3977 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 3978 | ioa_cfg->ucode_sglist = NULL; |
| 3979 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3980 | return 0; |
| 3981 | } |
| 3982 | |
| 3983 | /** |
| 3984 | * ipr_store_update_fw - Update the firmware on the adapter |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3985 | * @class_dev: device struct |
| 3986 | * @buf: buffer |
| 3987 | * @count: buffer size |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3988 | * |
| 3989 | * This function will update the firmware on the adapter. |
| 3990 | * |
| 3991 | * Return value: |
| 3992 | * count on success / other on failure |
| 3993 | **/ |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3994 | static ssize_t ipr_store_update_fw(struct device *dev, |
| 3995 | struct device_attribute *attr, |
| 3996 | const char *buf, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3997 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 3998 | struct Scsi_Host *shost = class_to_shost(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3999 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 4000 | struct ipr_ucode_image_header *image_hdr; |
| 4001 | const struct firmware *fw_entry; |
| 4002 | struct ipr_sglist *sglist; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4003 | char fname[100]; |
| 4004 | char *src; |
Gabriel Krisman Bertazi | 21b8171 | 2016-02-25 13:54:20 -0300 | [diff] [blame] | 4005 | char *endline; |
Insu Yun | d63c7dd | 2016-01-06 12:44:01 -0500 | [diff] [blame] | 4006 | int result, dnld_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4007 | |
| 4008 | if (!capable(CAP_SYS_ADMIN)) |
| 4009 | return -EACCES; |
| 4010 | |
Insu Yun | d63c7dd | 2016-01-06 12:44:01 -0500 | [diff] [blame] | 4011 | snprintf(fname, sizeof(fname), "%s", buf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4012 | |
Gabriel Krisman Bertazi | 21b8171 | 2016-02-25 13:54:20 -0300 | [diff] [blame] | 4013 | endline = strchr(fname, '\n'); |
| 4014 | if (endline) |
| 4015 | *endline = '\0'; |
| 4016 | |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 4017 | if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4018 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); |
| 4019 | return -EIO; |
| 4020 | } |
| 4021 | |
| 4022 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; |
| 4023 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4024 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); |
| 4025 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); |
| 4026 | sglist = ipr_alloc_ucode_buffer(dnld_size); |
| 4027 | |
| 4028 | if (!sglist) { |
| 4029 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); |
| 4030 | release_firmware(fw_entry); |
| 4031 | return -ENOMEM; |
| 4032 | } |
| 4033 | |
| 4034 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); |
| 4035 | |
| 4036 | if (result) { |
| 4037 | dev_err(&ioa_cfg->pdev->dev, |
| 4038 | "Microcode buffer copy to DMA buffer failed\n"); |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 4039 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4040 | } |
| 4041 | |
Wayne Boyer | 14ed9cc | 2011-10-03 20:54:37 -0700 | [diff] [blame] | 4042 | ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n"); |
| 4043 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 4044 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4045 | |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 4046 | if (!result) |
| 4047 | result = count; |
| 4048 | out: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4049 | ipr_free_ucode_buffer(sglist); |
| 4050 | release_firmware(fw_entry); |
brking@us.ibm.com | 12baa42 | 2005-11-01 17:01:27 -0600 | [diff] [blame] | 4051 | return result; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4052 | } |
| 4053 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 4054 | static struct device_attribute ipr_update_fw_attr = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4055 | .attr = { |
| 4056 | .name = "update_fw", |
| 4057 | .mode = S_IWUSR, |
| 4058 | }, |
| 4059 | .store = ipr_store_update_fw |
| 4060 | }; |
| 4061 | |
Wayne Boyer | 75576bb | 2010-07-14 10:50:14 -0700 | [diff] [blame] | 4062 | /** |
| 4063 | * ipr_show_fw_type - Show the adapter's firmware type. |
| 4064 | * @dev: class device struct |
| 4065 | * @buf: buffer |
| 4066 | * |
| 4067 | * Return value: |
| 4068 | * number of bytes printed to buffer |
| 4069 | **/ |
| 4070 | static ssize_t ipr_show_fw_type(struct device *dev, |
| 4071 | struct device_attribute *attr, char *buf) |
| 4072 | { |
| 4073 | struct Scsi_Host *shost = class_to_shost(dev); |
| 4074 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 4075 | unsigned long lock_flags = 0; |
| 4076 | int len; |
| 4077 | |
| 4078 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4079 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64); |
| 4080 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4081 | return len; |
| 4082 | } |
| 4083 | |
| 4084 | static struct device_attribute ipr_ioa_fw_type_attr = { |
| 4085 | .attr = { |
| 4086 | .name = "fw_type", |
| 4087 | .mode = S_IRUGO, |
| 4088 | }, |
| 4089 | .show = ipr_show_fw_type |
| 4090 | }; |
| 4091 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 4092 | static struct device_attribute *ipr_ioa_attrs[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4093 | &ipr_fw_version_attr, |
| 4094 | &ipr_log_level_attr, |
| 4095 | &ipr_diagnostics_attr, |
brking@us.ibm.com | f37eb54 | 2005-11-01 17:01:40 -0600 | [diff] [blame] | 4096 | &ipr_ioa_state_attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4097 | &ipr_ioa_reset_attr, |
| 4098 | &ipr_update_fw_attr, |
Wayne Boyer | 75576bb | 2010-07-14 10:50:14 -0700 | [diff] [blame] | 4099 | &ipr_ioa_fw_type_attr, |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 4100 | &ipr_iopoll_weight_attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4101 | NULL, |
| 4102 | }; |
| 4103 | |
| 4104 | #ifdef CONFIG_SCSI_IPR_DUMP |
| 4105 | /** |
| 4106 | * ipr_read_dump - Dump the adapter |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 4107 | * @filp: open sysfs file |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4108 | * @kobj: kobject struct |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 4109 | * @bin_attr: bin_attribute struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4110 | * @buf: buffer |
| 4111 | * @off: offset |
| 4112 | * @count: buffer size |
| 4113 | * |
| 4114 | * Return value: |
| 4115 | * number of bytes printed to buffer |
| 4116 | **/ |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 4117 | static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 4118 | struct bin_attribute *bin_attr, |
| 4119 | char *buf, loff_t off, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4120 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 4121 | struct device *cdev = container_of(kobj, struct device, kobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4122 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 4123 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 4124 | struct ipr_dump *dump; |
| 4125 | unsigned long lock_flags = 0; |
| 4126 | char *src; |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 4127 | int len, sdt_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4128 | size_t rc = count; |
| 4129 | |
| 4130 | if (!capable(CAP_SYS_ADMIN)) |
| 4131 | return -EACCES; |
| 4132 | |
| 4133 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4134 | dump = ioa_cfg->dump; |
| 4135 | |
| 4136 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { |
| 4137 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4138 | return 0; |
| 4139 | } |
| 4140 | kref_get(&dump->kref); |
| 4141 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4142 | |
| 4143 | if (off > dump->driver_dump.hdr.len) { |
| 4144 | kref_put(&dump->kref, ipr_release_dump); |
| 4145 | return 0; |
| 4146 | } |
| 4147 | |
| 4148 | if (off + count > dump->driver_dump.hdr.len) { |
| 4149 | count = dump->driver_dump.hdr.len - off; |
| 4150 | rc = count; |
| 4151 | } |
| 4152 | |
| 4153 | if (count && off < sizeof(dump->driver_dump)) { |
| 4154 | if (off + count > sizeof(dump->driver_dump)) |
| 4155 | len = sizeof(dump->driver_dump) - off; |
| 4156 | else |
| 4157 | len = count; |
| 4158 | src = (u8 *)&dump->driver_dump + off; |
| 4159 | memcpy(buf, src, len); |
| 4160 | buf += len; |
| 4161 | off += len; |
| 4162 | count -= len; |
| 4163 | } |
| 4164 | |
| 4165 | off -= sizeof(dump->driver_dump); |
| 4166 | |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 4167 | if (ioa_cfg->sis64) |
| 4168 | sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + |
| 4169 | (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) * |
| 4170 | sizeof(struct ipr_sdt_entry)); |
| 4171 | else |
| 4172 | sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + |
| 4173 | (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry)); |
| 4174 | |
| 4175 | if (count && off < sdt_end) { |
| 4176 | if (off + count > sdt_end) |
| 4177 | len = sdt_end - off; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4178 | else |
| 4179 | len = count; |
| 4180 | src = (u8 *)&dump->ioa_dump + off; |
| 4181 | memcpy(buf, src, len); |
| 4182 | buf += len; |
| 4183 | off += len; |
| 4184 | count -= len; |
| 4185 | } |
| 4186 | |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 4187 | off -= sdt_end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4188 | |
| 4189 | while (count) { |
| 4190 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) |
| 4191 | len = PAGE_ALIGN(off) - off; |
| 4192 | else |
| 4193 | len = count; |
| 4194 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; |
| 4195 | src += off & ~PAGE_MASK; |
| 4196 | memcpy(buf, src, len); |
| 4197 | buf += len; |
| 4198 | off += len; |
| 4199 | count -= len; |
| 4200 | } |
| 4201 | |
| 4202 | kref_put(&dump->kref, ipr_release_dump); |
| 4203 | return rc; |
| 4204 | } |
| 4205 | |
| 4206 | /** |
| 4207 | * ipr_alloc_dump - Prepare for adapter dump |
| 4208 | * @ioa_cfg: ioa config struct |
| 4209 | * |
| 4210 | * Return value: |
| 4211 | * 0 on success / other on failure |
| 4212 | **/ |
| 4213 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) |
| 4214 | { |
| 4215 | struct ipr_dump *dump; |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 4216 | __be32 **ioa_data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4217 | unsigned long lock_flags = 0; |
| 4218 | |
brking@us.ibm.com | 0bc42e3 | 2005-11-01 17:01:20 -0600 | [diff] [blame] | 4219 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4220 | |
| 4221 | if (!dump) { |
| 4222 | ipr_err("Dump memory allocation failed\n"); |
| 4223 | return -ENOMEM; |
| 4224 | } |
| 4225 | |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 4226 | if (ioa_cfg->sis64) |
| 4227 | ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *)); |
| 4228 | else |
| 4229 | ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *)); |
| 4230 | |
| 4231 | if (!ioa_data) { |
| 4232 | ipr_err("Dump memory allocation failed\n"); |
| 4233 | kfree(dump); |
| 4234 | return -ENOMEM; |
| 4235 | } |
| 4236 | |
| 4237 | dump->ioa_dump.ioa_data = ioa_data; |
| 4238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4239 | kref_init(&dump->kref); |
| 4240 | dump->ioa_cfg = ioa_cfg; |
| 4241 | |
| 4242 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4243 | |
| 4244 | if (INACTIVE != ioa_cfg->sdt_state) { |
| 4245 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Kleber Sacilotto de Souza | 4d4dd70 | 2011-04-26 19:23:29 -0300 | [diff] [blame] | 4246 | vfree(dump->ioa_dump.ioa_data); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4247 | kfree(dump); |
| 4248 | return 0; |
| 4249 | } |
| 4250 | |
| 4251 | ioa_cfg->dump = dump; |
| 4252 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 4253 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4254 | ioa_cfg->dump_taken = 1; |
| 4255 | schedule_work(&ioa_cfg->work_q); |
| 4256 | } |
| 4257 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4258 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4259 | return 0; |
| 4260 | } |
| 4261 | |
| 4262 | /** |
| 4263 | * ipr_free_dump - Free adapter dump memory |
| 4264 | * @ioa_cfg: ioa config struct |
| 4265 | * |
| 4266 | * Return value: |
| 4267 | * 0 on success / other on failure |
| 4268 | **/ |
| 4269 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) |
| 4270 | { |
| 4271 | struct ipr_dump *dump; |
| 4272 | unsigned long lock_flags = 0; |
| 4273 | |
| 4274 | ENTER; |
| 4275 | |
| 4276 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4277 | dump = ioa_cfg->dump; |
| 4278 | if (!dump) { |
| 4279 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4280 | return 0; |
| 4281 | } |
| 4282 | |
| 4283 | ioa_cfg->dump = NULL; |
| 4284 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4285 | |
| 4286 | kref_put(&dump->kref, ipr_release_dump); |
| 4287 | |
| 4288 | LEAVE; |
| 4289 | return 0; |
| 4290 | } |
| 4291 | |
| 4292 | /** |
| 4293 | * ipr_write_dump - Setup dump state of adapter |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 4294 | * @filp: open sysfs file |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4295 | * @kobj: kobject struct |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 4296 | * @bin_attr: bin_attribute struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4297 | * @buf: buffer |
| 4298 | * @off: offset |
| 4299 | * @count: buffer size |
| 4300 | * |
| 4301 | * Return value: |
| 4302 | * number of bytes printed to buffer |
| 4303 | **/ |
Chris Wright | 2c3c8be | 2010-05-12 18:28:57 -0700 | [diff] [blame] | 4304 | static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, |
Zhang Rui | 91a6902 | 2007-06-09 13:57:22 +0800 | [diff] [blame] | 4305 | struct bin_attribute *bin_attr, |
| 4306 | char *buf, loff_t off, size_t count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4307 | { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 4308 | struct device *cdev = container_of(kobj, struct device, kobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4309 | struct Scsi_Host *shost = class_to_shost(cdev); |
| 4310 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 4311 | int rc; |
| 4312 | |
| 4313 | if (!capable(CAP_SYS_ADMIN)) |
| 4314 | return -EACCES; |
| 4315 | |
| 4316 | if (buf[0] == '1') |
| 4317 | rc = ipr_alloc_dump(ioa_cfg); |
| 4318 | else if (buf[0] == '0') |
| 4319 | rc = ipr_free_dump(ioa_cfg); |
| 4320 | else |
| 4321 | return -EINVAL; |
| 4322 | |
| 4323 | if (rc) |
| 4324 | return rc; |
| 4325 | else |
| 4326 | return count; |
| 4327 | } |
| 4328 | |
| 4329 | static struct bin_attribute ipr_dump_attr = { |
| 4330 | .attr = { |
| 4331 | .name = "dump", |
| 4332 | .mode = S_IRUSR | S_IWUSR, |
| 4333 | }, |
| 4334 | .size = 0, |
| 4335 | .read = ipr_read_dump, |
| 4336 | .write = ipr_write_dump |
| 4337 | }; |
| 4338 | #else |
| 4339 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; |
| 4340 | #endif |
| 4341 | |
| 4342 | /** |
| 4343 | * ipr_change_queue_depth - Change the device's queue depth |
| 4344 | * @sdev: scsi device struct |
| 4345 | * @qdepth: depth to set |
Mike Christie | e881a17 | 2009-10-15 17:46:39 -0700 | [diff] [blame] | 4346 | * @reason: calling context |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4347 | * |
| 4348 | * Return value: |
| 4349 | * actual depth set |
| 4350 | **/ |
Christoph Hellwig | db5ed4d | 2014-11-13 15:08:42 +0100 | [diff] [blame] | 4351 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4352 | { |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4353 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 4354 | struct ipr_resource_entry *res; |
| 4355 | unsigned long lock_flags = 0; |
| 4356 | |
| 4357 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4358 | res = (struct ipr_resource_entry *)sdev->hostdata; |
| 4359 | |
| 4360 | if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) |
| 4361 | qdepth = IPR_MAX_CMD_PER_ATA_LUN; |
| 4362 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4363 | |
Christoph Hellwig | db5ed4d | 2014-11-13 15:08:42 +0100 | [diff] [blame] | 4364 | scsi_change_queue_depth(sdev, qdepth); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4365 | return sdev->queue_depth; |
| 4366 | } |
| 4367 | |
| 4368 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4369 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device |
| 4370 | * @dev: device struct |
Wayne Boyer | 46d7456 | 2010-08-11 07:15:17 -0700 | [diff] [blame] | 4371 | * @attr: device attribute structure |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4372 | * @buf: buffer |
| 4373 | * |
| 4374 | * Return value: |
| 4375 | * number of bytes printed to buffer |
| 4376 | **/ |
Yani Ioannou | 10523b3 | 2005-05-17 06:43:37 -0400 | [diff] [blame] | 4377 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4378 | { |
| 4379 | struct scsi_device *sdev = to_scsi_device(dev); |
| 4380 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 4381 | struct ipr_resource_entry *res; |
| 4382 | unsigned long lock_flags = 0; |
| 4383 | ssize_t len = -ENXIO; |
| 4384 | |
| 4385 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4386 | res = (struct ipr_resource_entry *)sdev->hostdata; |
| 4387 | if (res) |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4388 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4389 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4390 | return len; |
| 4391 | } |
| 4392 | |
| 4393 | static struct device_attribute ipr_adapter_handle_attr = { |
| 4394 | .attr = { |
| 4395 | .name = "adapter_handle", |
| 4396 | .mode = S_IRUSR, |
| 4397 | }, |
| 4398 | .show = ipr_show_adapter_handle |
| 4399 | }; |
| 4400 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4401 | /** |
Wayne Boyer | 5adcbeb | 2010-06-03 16:02:21 -0700 | [diff] [blame] | 4402 | * ipr_show_resource_path - Show the resource path or the resource address for |
| 4403 | * this device. |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4404 | * @dev: device struct |
Wayne Boyer | 46d7456 | 2010-08-11 07:15:17 -0700 | [diff] [blame] | 4405 | * @attr: device attribute structure |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4406 | * @buf: buffer |
| 4407 | * |
| 4408 | * Return value: |
| 4409 | * number of bytes printed to buffer |
| 4410 | **/ |
| 4411 | static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) |
| 4412 | { |
| 4413 | struct scsi_device *sdev = to_scsi_device(dev); |
| 4414 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 4415 | struct ipr_resource_entry *res; |
| 4416 | unsigned long lock_flags = 0; |
| 4417 | ssize_t len = -ENXIO; |
| 4418 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
| 4419 | |
| 4420 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4421 | res = (struct ipr_resource_entry *)sdev->hostdata; |
Wayne Boyer | 5adcbeb | 2010-06-03 16:02:21 -0700 | [diff] [blame] | 4422 | if (res && ioa_cfg->sis64) |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4423 | len = snprintf(buf, PAGE_SIZE, "%s\n", |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 4424 | __ipr_format_res_path(res->res_path, buffer, |
| 4425 | sizeof(buffer))); |
Wayne Boyer | 5adcbeb | 2010-06-03 16:02:21 -0700 | [diff] [blame] | 4426 | else if (res) |
| 4427 | len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no, |
| 4428 | res->bus, res->target, res->lun); |
| 4429 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4430 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4431 | return len; |
| 4432 | } |
| 4433 | |
| 4434 | static struct device_attribute ipr_resource_path_attr = { |
| 4435 | .attr = { |
| 4436 | .name = "resource_path", |
Wayne Boyer | 75576bb | 2010-07-14 10:50:14 -0700 | [diff] [blame] | 4437 | .mode = S_IRUGO, |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4438 | }, |
| 4439 | .show = ipr_show_resource_path |
| 4440 | }; |
| 4441 | |
Wayne Boyer | 75576bb | 2010-07-14 10:50:14 -0700 | [diff] [blame] | 4442 | /** |
Wayne Boyer | 46d7456 | 2010-08-11 07:15:17 -0700 | [diff] [blame] | 4443 | * ipr_show_device_id - Show the device_id for this device. |
| 4444 | * @dev: device struct |
| 4445 | * @attr: device attribute structure |
| 4446 | * @buf: buffer |
| 4447 | * |
| 4448 | * Return value: |
| 4449 | * number of bytes printed to buffer |
| 4450 | **/ |
| 4451 | static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) |
| 4452 | { |
| 4453 | struct scsi_device *sdev = to_scsi_device(dev); |
| 4454 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 4455 | struct ipr_resource_entry *res; |
| 4456 | unsigned long lock_flags = 0; |
| 4457 | ssize_t len = -ENXIO; |
| 4458 | |
| 4459 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4460 | res = (struct ipr_resource_entry *)sdev->hostdata; |
| 4461 | if (res && ioa_cfg->sis64) |
Wen Xiong | bb8647e | 2015-06-11 20:45:18 -0500 | [diff] [blame] | 4462 | len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id)); |
Wayne Boyer | 46d7456 | 2010-08-11 07:15:17 -0700 | [diff] [blame] | 4463 | else if (res) |
| 4464 | len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); |
| 4465 | |
| 4466 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4467 | return len; |
| 4468 | } |
| 4469 | |
| 4470 | static struct device_attribute ipr_device_id_attr = { |
| 4471 | .attr = { |
| 4472 | .name = "device_id", |
| 4473 | .mode = S_IRUGO, |
| 4474 | }, |
| 4475 | .show = ipr_show_device_id |
| 4476 | }; |
| 4477 | |
| 4478 | /** |
Wayne Boyer | 75576bb | 2010-07-14 10:50:14 -0700 | [diff] [blame] | 4479 | * ipr_show_resource_type - Show the resource type for this device. |
| 4480 | * @dev: device struct |
Wayne Boyer | 46d7456 | 2010-08-11 07:15:17 -0700 | [diff] [blame] | 4481 | * @attr: device attribute structure |
Wayne Boyer | 75576bb | 2010-07-14 10:50:14 -0700 | [diff] [blame] | 4482 | * @buf: buffer |
| 4483 | * |
| 4484 | * Return value: |
| 4485 | * number of bytes printed to buffer |
| 4486 | **/ |
| 4487 | static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) |
| 4488 | { |
| 4489 | struct scsi_device *sdev = to_scsi_device(dev); |
| 4490 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 4491 | struct ipr_resource_entry *res; |
| 4492 | unsigned long lock_flags = 0; |
| 4493 | ssize_t len = -ENXIO; |
| 4494 | |
| 4495 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4496 | res = (struct ipr_resource_entry *)sdev->hostdata; |
| 4497 | |
| 4498 | if (res) |
| 4499 | len = snprintf(buf, PAGE_SIZE, "%x\n", res->type); |
| 4500 | |
| 4501 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4502 | return len; |
| 4503 | } |
| 4504 | |
| 4505 | static struct device_attribute ipr_resource_type_attr = { |
| 4506 | .attr = { |
| 4507 | .name = "resource_type", |
| 4508 | .mode = S_IRUGO, |
| 4509 | }, |
| 4510 | .show = ipr_show_resource_type |
| 4511 | }; |
| 4512 | |
Wen Xiong | f8ee25d | 2015-03-26 11:23:58 -0500 | [diff] [blame] | 4513 | /** |
| 4514 | * ipr_show_raw_mode - Show the adapter's raw mode |
| 4515 | * @dev: class device struct |
| 4516 | * @buf: buffer |
| 4517 | * |
| 4518 | * Return value: |
| 4519 | * number of bytes printed to buffer |
| 4520 | **/ |
| 4521 | static ssize_t ipr_show_raw_mode(struct device *dev, |
| 4522 | struct device_attribute *attr, char *buf) |
| 4523 | { |
| 4524 | struct scsi_device *sdev = to_scsi_device(dev); |
| 4525 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 4526 | struct ipr_resource_entry *res; |
| 4527 | unsigned long lock_flags = 0; |
| 4528 | ssize_t len; |
| 4529 | |
| 4530 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4531 | res = (struct ipr_resource_entry *)sdev->hostdata; |
| 4532 | if (res) |
| 4533 | len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode); |
| 4534 | else |
| 4535 | len = -ENXIO; |
| 4536 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4537 | return len; |
| 4538 | } |
| 4539 | |
| 4540 | /** |
| 4541 | * ipr_store_raw_mode - Change the adapter's raw mode |
| 4542 | * @dev: class device struct |
| 4543 | * @buf: buffer |
| 4544 | * |
| 4545 | * Return value: |
| 4546 | * number of bytes printed to buffer |
| 4547 | **/ |
| 4548 | static ssize_t ipr_store_raw_mode(struct device *dev, |
| 4549 | struct device_attribute *attr, |
| 4550 | const char *buf, size_t count) |
| 4551 | { |
| 4552 | struct scsi_device *sdev = to_scsi_device(dev); |
| 4553 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
| 4554 | struct ipr_resource_entry *res; |
| 4555 | unsigned long lock_flags = 0; |
| 4556 | ssize_t len; |
| 4557 | |
| 4558 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4559 | res = (struct ipr_resource_entry *)sdev->hostdata; |
| 4560 | if (res) { |
Gabriel Krisman Bertazi | e35d7f27 | 2015-08-19 11:47:06 -0300 | [diff] [blame] | 4561 | if (ipr_is_af_dasd_device(res)) { |
Wen Xiong | f8ee25d | 2015-03-26 11:23:58 -0500 | [diff] [blame] | 4562 | res->raw_mode = simple_strtoul(buf, NULL, 10); |
| 4563 | len = strlen(buf); |
| 4564 | if (res->sdev) |
| 4565 | sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n", |
| 4566 | res->raw_mode ? "enabled" : "disabled"); |
| 4567 | } else |
| 4568 | len = -EINVAL; |
| 4569 | } else |
| 4570 | len = -ENXIO; |
| 4571 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4572 | return len; |
| 4573 | } |
| 4574 | |
| 4575 | static struct device_attribute ipr_raw_mode_attr = { |
| 4576 | .attr = { |
| 4577 | .name = "raw_mode", |
| 4578 | .mode = S_IRUGO | S_IWUSR, |
| 4579 | }, |
| 4580 | .show = ipr_show_raw_mode, |
| 4581 | .store = ipr_store_raw_mode |
| 4582 | }; |
| 4583 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4584 | static struct device_attribute *ipr_dev_attrs[] = { |
| 4585 | &ipr_adapter_handle_attr, |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4586 | &ipr_resource_path_attr, |
Wayne Boyer | 46d7456 | 2010-08-11 07:15:17 -0700 | [diff] [blame] | 4587 | &ipr_device_id_attr, |
Wayne Boyer | 75576bb | 2010-07-14 10:50:14 -0700 | [diff] [blame] | 4588 | &ipr_resource_type_attr, |
Wen Xiong | f8ee25d | 2015-03-26 11:23:58 -0500 | [diff] [blame] | 4589 | &ipr_raw_mode_attr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4590 | NULL, |
| 4591 | }; |
| 4592 | |
| 4593 | /** |
| 4594 | * ipr_biosparam - Return the HSC mapping |
| 4595 | * @sdev: scsi device struct |
| 4596 | * @block_device: block device pointer |
| 4597 | * @capacity: capacity of the device |
| 4598 | * @parm: Array containing returned HSC values. |
| 4599 | * |
| 4600 | * This function generates the HSC parms that fdisk uses. |
| 4601 | * We want to make sure we return something that places partitions |
| 4602 | * on 4k boundaries for best performance with the IOA. |
| 4603 | * |
| 4604 | * Return value: |
| 4605 | * 0 on success |
| 4606 | **/ |
| 4607 | static int ipr_biosparam(struct scsi_device *sdev, |
| 4608 | struct block_device *block_device, |
| 4609 | sector_t capacity, int *parm) |
| 4610 | { |
| 4611 | int heads, sectors; |
| 4612 | sector_t cylinders; |
| 4613 | |
| 4614 | heads = 128; |
| 4615 | sectors = 32; |
| 4616 | |
| 4617 | cylinders = capacity; |
| 4618 | sector_div(cylinders, (128 * 32)); |
| 4619 | |
| 4620 | /* return result */ |
| 4621 | parm[0] = heads; |
| 4622 | parm[1] = sectors; |
| 4623 | parm[2] = cylinders; |
| 4624 | |
| 4625 | return 0; |
| 4626 | } |
| 4627 | |
| 4628 | /** |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4629 | * ipr_find_starget - Find target based on bus/target. |
| 4630 | * @starget: scsi target struct |
| 4631 | * |
| 4632 | * Return value: |
| 4633 | * resource entry pointer if found / NULL if not found |
| 4634 | **/ |
| 4635 | static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) |
| 4636 | { |
| 4637 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); |
| 4638 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
| 4639 | struct ipr_resource_entry *res; |
| 4640 | |
| 4641 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4642 | if ((res->bus == starget->channel) && |
Brian King | 0ee1d71 | 2012-03-14 21:20:06 -0500 | [diff] [blame] | 4643 | (res->target == starget->id)) { |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4644 | return res; |
| 4645 | } |
| 4646 | } |
| 4647 | |
| 4648 | return NULL; |
| 4649 | } |
| 4650 | |
| 4651 | static struct ata_port_info sata_port_info; |
| 4652 | |
| 4653 | /** |
| 4654 | * ipr_target_alloc - Prepare for commands to a SCSI target |
| 4655 | * @starget: scsi target struct |
| 4656 | * |
| 4657 | * If the device is a SATA device, this function allocates an |
| 4658 | * ATA port with libata, else it does nothing. |
| 4659 | * |
| 4660 | * Return value: |
| 4661 | * 0 on success / non-0 on failure |
| 4662 | **/ |
| 4663 | static int ipr_target_alloc(struct scsi_target *starget) |
| 4664 | { |
| 4665 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); |
| 4666 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
| 4667 | struct ipr_sata_port *sata_port; |
| 4668 | struct ata_port *ap; |
| 4669 | struct ipr_resource_entry *res; |
| 4670 | unsigned long lock_flags; |
| 4671 | |
| 4672 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4673 | res = ipr_find_starget(starget); |
| 4674 | starget->hostdata = NULL; |
| 4675 | |
| 4676 | if (res && ipr_is_gata(res)) { |
| 4677 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4678 | sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); |
| 4679 | if (!sata_port) |
| 4680 | return -ENOMEM; |
| 4681 | |
| 4682 | ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); |
| 4683 | if (ap) { |
| 4684 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4685 | sata_port->ioa_cfg = ioa_cfg; |
| 4686 | sata_port->ap = ap; |
| 4687 | sata_port->res = res; |
| 4688 | |
| 4689 | res->sata_port = sata_port; |
| 4690 | ap->private_data = sata_port; |
| 4691 | starget->hostdata = sata_port; |
| 4692 | } else { |
| 4693 | kfree(sata_port); |
| 4694 | return -ENOMEM; |
| 4695 | } |
| 4696 | } |
| 4697 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4698 | |
| 4699 | return 0; |
| 4700 | } |
| 4701 | |
| 4702 | /** |
| 4703 | * ipr_target_destroy - Destroy a SCSI target |
| 4704 | * @starget: scsi target struct |
| 4705 | * |
| 4706 | * If the device was a SATA device, this function frees the libata |
| 4707 | * ATA port, else it does nothing. |
| 4708 | * |
| 4709 | **/ |
| 4710 | static void ipr_target_destroy(struct scsi_target *starget) |
| 4711 | { |
| 4712 | struct ipr_sata_port *sata_port = starget->hostdata; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4713 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); |
| 4714 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
| 4715 | |
| 4716 | if (ioa_cfg->sis64) { |
Brian King | 0ee1d71 | 2012-03-14 21:20:06 -0500 | [diff] [blame] | 4717 | if (!ipr_find_starget(starget)) { |
| 4718 | if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) |
| 4719 | clear_bit(starget->id, ioa_cfg->array_ids); |
| 4720 | else if (starget->channel == IPR_VSET_VIRTUAL_BUS) |
| 4721 | clear_bit(starget->id, ioa_cfg->vset_ids); |
| 4722 | else if (starget->channel == 0) |
| 4723 | clear_bit(starget->id, ioa_cfg->target_ids); |
| 4724 | } |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4725 | } |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4726 | |
| 4727 | if (sata_port) { |
| 4728 | starget->hostdata = NULL; |
| 4729 | ata_sas_port_destroy(sata_port->ap); |
| 4730 | kfree(sata_port); |
| 4731 | } |
| 4732 | } |
| 4733 | |
| 4734 | /** |
| 4735 | * ipr_find_sdev - Find device based on bus/target/lun. |
| 4736 | * @sdev: scsi device struct |
| 4737 | * |
| 4738 | * Return value: |
| 4739 | * resource entry pointer if found / NULL if not found |
| 4740 | **/ |
| 4741 | static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) |
| 4742 | { |
| 4743 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
| 4744 | struct ipr_resource_entry *res; |
| 4745 | |
| 4746 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4747 | if ((res->bus == sdev->channel) && |
| 4748 | (res->target == sdev->id) && |
| 4749 | (res->lun == sdev->lun)) |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4750 | return res; |
| 4751 | } |
| 4752 | |
| 4753 | return NULL; |
| 4754 | } |
| 4755 | |
| 4756 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4757 | * ipr_slave_destroy - Unconfigure a SCSI device |
| 4758 | * @sdev: scsi device struct |
| 4759 | * |
| 4760 | * Return value: |
| 4761 | * nothing |
| 4762 | **/ |
| 4763 | static void ipr_slave_destroy(struct scsi_device *sdev) |
| 4764 | { |
| 4765 | struct ipr_resource_entry *res; |
| 4766 | struct ipr_ioa_cfg *ioa_cfg; |
| 4767 | unsigned long lock_flags = 0; |
| 4768 | |
| 4769 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
| 4770 | |
| 4771 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4772 | res = (struct ipr_resource_entry *) sdev->hostdata; |
| 4773 | if (res) { |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4774 | if (res->sata_port) |
Tejun Heo | 3e4ec34 | 2010-05-10 21:41:30 +0200 | [diff] [blame] | 4775 | res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4776 | sdev->hostdata = NULL; |
| 4777 | res->sdev = NULL; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4778 | res->sata_port = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4779 | } |
| 4780 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4781 | } |
| 4782 | |
| 4783 | /** |
| 4784 | * ipr_slave_configure - Configure a SCSI device |
| 4785 | * @sdev: scsi device struct |
| 4786 | * |
| 4787 | * This function configures the specified scsi device. |
| 4788 | * |
| 4789 | * Return value: |
| 4790 | * 0 on success |
| 4791 | **/ |
| 4792 | static int ipr_slave_configure(struct scsi_device *sdev) |
| 4793 | { |
| 4794 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
| 4795 | struct ipr_resource_entry *res; |
Brian King | dd406ef | 2009-04-22 08:58:02 -0500 | [diff] [blame] | 4796 | struct ata_port *ap = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4797 | unsigned long lock_flags = 0; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4798 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4799 | |
| 4800 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4801 | res = sdev->hostdata; |
| 4802 | if (res) { |
| 4803 | if (ipr_is_af_dasd_device(res)) |
| 4804 | sdev->type = TYPE_RAID; |
brking@us.ibm.com | 0726ce2 | 2005-11-01 17:01:01 -0600 | [diff] [blame] | 4805 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4806 | sdev->scsi_level = 4; |
brking@us.ibm.com | 0726ce2 | 2005-11-01 17:01:01 -0600 | [diff] [blame] | 4807 | sdev->no_uld_attach = 1; |
| 4808 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4809 | if (ipr_is_vset_device(res)) { |
Brian King | 60654e2 | 2014-12-02 12:47:46 -0600 | [diff] [blame] | 4810 | sdev->scsi_level = SCSI_SPC_3; |
Jens Axboe | 242f9dc | 2008-09-14 05:55:09 -0700 | [diff] [blame] | 4811 | blk_queue_rq_timeout(sdev->request_queue, |
| 4812 | IPR_VSET_RW_TIMEOUT); |
Martin K. Petersen | 086fa5f | 2010-02-26 00:20:38 -0500 | [diff] [blame] | 4813 | blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4814 | } |
Brian King | dd406ef | 2009-04-22 08:58:02 -0500 | [diff] [blame] | 4815 | if (ipr_is_gata(res) && res->sata_port) |
| 4816 | ap = res->sata_port->ap; |
| 4817 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4818 | |
| 4819 | if (ap) { |
Christoph Hellwig | db5ed4d | 2014-11-13 15:08:42 +0100 | [diff] [blame] | 4820 | scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); |
Brian King | dd406ef | 2009-04-22 08:58:02 -0500 | [diff] [blame] | 4821 | ata_sas_slave_configure(sdev, ap); |
Christoph Hellwig | c8b09f6 | 2014-11-03 20:15:14 +0100 | [diff] [blame] | 4822 | } |
| 4823 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 4824 | if (ioa_cfg->sis64) |
| 4825 | sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", |
Brian King | b3b3b40 | 2013-01-11 17:43:49 -0600 | [diff] [blame] | 4826 | ipr_format_res_path(ioa_cfg, |
| 4827 | res->res_path, buffer, sizeof(buffer))); |
Brian King | dd406ef | 2009-04-22 08:58:02 -0500 | [diff] [blame] | 4828 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4829 | } |
| 4830 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4831 | return 0; |
| 4832 | } |
| 4833 | |
| 4834 | /** |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4835 | * ipr_ata_slave_alloc - Prepare for commands to a SATA device |
| 4836 | * @sdev: scsi device struct |
| 4837 | * |
| 4838 | * This function initializes an ATA port so that future commands |
| 4839 | * sent through queuecommand will work. |
| 4840 | * |
| 4841 | * Return value: |
| 4842 | * 0 on success |
| 4843 | **/ |
| 4844 | static int ipr_ata_slave_alloc(struct scsi_device *sdev) |
| 4845 | { |
| 4846 | struct ipr_sata_port *sata_port = NULL; |
| 4847 | int rc = -ENXIO; |
| 4848 | |
| 4849 | ENTER; |
| 4850 | if (sdev->sdev_target) |
| 4851 | sata_port = sdev->sdev_target->hostdata; |
Dan Williams | b202445 | 2012-03-21 21:09:07 -0700 | [diff] [blame] | 4852 | if (sata_port) { |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4853 | rc = ata_sas_port_init(sata_port->ap); |
Dan Williams | b202445 | 2012-03-21 21:09:07 -0700 | [diff] [blame] | 4854 | if (rc == 0) |
| 4855 | rc = ata_sas_sync_probe(sata_port->ap); |
| 4856 | } |
| 4857 | |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4858 | if (rc) |
| 4859 | ipr_slave_destroy(sdev); |
| 4860 | |
| 4861 | LEAVE; |
| 4862 | return rc; |
| 4863 | } |
| 4864 | |
| 4865 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4866 | * ipr_slave_alloc - Prepare for commands to a device. |
| 4867 | * @sdev: scsi device struct |
| 4868 | * |
| 4869 | * This function saves a pointer to the resource entry |
| 4870 | * in the scsi device struct if the device exists. We |
| 4871 | * can then use this pointer in ipr_queuecommand when |
| 4872 | * handling new commands. |
| 4873 | * |
| 4874 | * Return value: |
brking@us.ibm.com | 692aebf | 2005-11-01 17:01:07 -0600 | [diff] [blame] | 4875 | * 0 on success / -ENXIO if device does not exist |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4876 | **/ |
| 4877 | static int ipr_slave_alloc(struct scsi_device *sdev) |
| 4878 | { |
| 4879 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
| 4880 | struct ipr_resource_entry *res; |
| 4881 | unsigned long lock_flags; |
brking@us.ibm.com | 692aebf | 2005-11-01 17:01:07 -0600 | [diff] [blame] | 4882 | int rc = -ENXIO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4883 | |
| 4884 | sdev->hostdata = NULL; |
| 4885 | |
| 4886 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 4887 | |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 4888 | res = ipr_find_sdev(sdev); |
| 4889 | if (res) { |
| 4890 | res->sdev = sdev; |
| 4891 | res->add_to_ml = 0; |
| 4892 | res->in_erp = 0; |
| 4893 | sdev->hostdata = res; |
| 4894 | if (!ipr_is_naca_model(res)) |
| 4895 | res->needs_sync_complete = 1; |
| 4896 | rc = 0; |
| 4897 | if (ipr_is_gata(res)) { |
| 4898 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4899 | return ipr_ata_slave_alloc(sdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4900 | } |
| 4901 | } |
| 4902 | |
| 4903 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 4904 | |
brking@us.ibm.com | 692aebf | 2005-11-01 17:01:07 -0600 | [diff] [blame] | 4905 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4906 | } |
| 4907 | |
Brian King | 6cdb081 | 2014-10-30 17:27:10 -0500 | [diff] [blame] | 4908 | /** |
| 4909 | * ipr_match_lun - Match function for specified LUN |
| 4910 | * @ipr_cmd: ipr command struct |
| 4911 | * @device: device to match (sdev) |
| 4912 | * |
| 4913 | * Returns: |
| 4914 | * 1 if command matches sdev / 0 if command does not match sdev |
| 4915 | **/ |
| 4916 | static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device) |
| 4917 | { |
| 4918 | if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device) |
| 4919 | return 1; |
| 4920 | return 0; |
| 4921 | } |
| 4922 | |
| 4923 | /** |
| 4924 | * ipr_wait_for_ops - Wait for matching commands to complete |
| 4925 | * @ipr_cmd: ipr command struct |
| 4926 | * @device: device to match (sdev) |
| 4927 | * @match: match function to use |
| 4928 | * |
| 4929 | * Returns: |
| 4930 | * SUCCESS / FAILED |
| 4931 | **/ |
| 4932 | static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device, |
| 4933 | int (*match)(struct ipr_cmnd *, void *)) |
| 4934 | { |
| 4935 | struct ipr_cmnd *ipr_cmd; |
| 4936 | int wait; |
| 4937 | unsigned long flags; |
| 4938 | struct ipr_hrr_queue *hrrq; |
| 4939 | signed long timeout = IPR_ABORT_TASK_TIMEOUT; |
| 4940 | DECLARE_COMPLETION_ONSTACK(comp); |
| 4941 | |
| 4942 | ENTER; |
| 4943 | do { |
| 4944 | wait = 0; |
| 4945 | |
| 4946 | for_each_hrrq(hrrq, ioa_cfg) { |
| 4947 | spin_lock_irqsave(hrrq->lock, flags); |
| 4948 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { |
| 4949 | if (match(ipr_cmd, device)) { |
| 4950 | ipr_cmd->eh_comp = ∁ |
| 4951 | wait++; |
| 4952 | } |
| 4953 | } |
| 4954 | spin_unlock_irqrestore(hrrq->lock, flags); |
| 4955 | } |
| 4956 | |
| 4957 | if (wait) { |
| 4958 | timeout = wait_for_completion_timeout(&comp, timeout); |
| 4959 | |
| 4960 | if (!timeout) { |
| 4961 | wait = 0; |
| 4962 | |
| 4963 | for_each_hrrq(hrrq, ioa_cfg) { |
| 4964 | spin_lock_irqsave(hrrq->lock, flags); |
| 4965 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { |
| 4966 | if (match(ipr_cmd, device)) { |
| 4967 | ipr_cmd->eh_comp = NULL; |
| 4968 | wait++; |
| 4969 | } |
| 4970 | } |
| 4971 | spin_unlock_irqrestore(hrrq->lock, flags); |
| 4972 | } |
| 4973 | |
| 4974 | if (wait) |
| 4975 | dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n"); |
| 4976 | LEAVE; |
| 4977 | return wait ? FAILED : SUCCESS; |
| 4978 | } |
| 4979 | } |
| 4980 | } while (wait); |
| 4981 | |
| 4982 | LEAVE; |
| 4983 | return SUCCESS; |
| 4984 | } |
| 4985 | |
wenxiong@linux.vnet.ibm.com | 70233ac | 2013-01-11 17:43:54 -0600 | [diff] [blame] | 4986 | static int ipr_eh_host_reset(struct scsi_cmnd *cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4987 | { |
| 4988 | struct ipr_ioa_cfg *ioa_cfg; |
wenxiong@linux.vnet.ibm.com | 70233ac | 2013-01-11 17:43:54 -0600 | [diff] [blame] | 4989 | unsigned long lock_flags = 0; |
| 4990 | int rc = SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4991 | |
| 4992 | ENTER; |
wenxiong@linux.vnet.ibm.com | 70233ac | 2013-01-11 17:43:54 -0600 | [diff] [blame] | 4993 | ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; |
| 4994 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4995 | |
wenxiong@linux.vnet.ibm.com | 96b04db | 2013-04-17 09:34:06 -0500 | [diff] [blame] | 4996 | if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
wenxiong@linux.vnet.ibm.com | 70233ac | 2013-01-11 17:43:54 -0600 | [diff] [blame] | 4997 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); |
Kleber Sacilotto de Souza | a92fa25 | 2012-01-16 19:30:25 -0200 | [diff] [blame] | 4998 | dev_err(&ioa_cfg->pdev->dev, |
| 4999 | "Adapter being reset as a result of error recovery.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5000 | |
Kleber Sacilotto de Souza | a92fa25 | 2012-01-16 19:30:25 -0200 | [diff] [blame] | 5001 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 5002 | ioa_cfg->sdt_state = GET_DUMP; |
| 5003 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5004 | |
wenxiong@linux.vnet.ibm.com | 70233ac | 2013-01-11 17:43:54 -0600 | [diff] [blame] | 5005 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 5006 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 5007 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5008 | |
wenxiong@linux.vnet.ibm.com | 70233ac | 2013-01-11 17:43:54 -0600 | [diff] [blame] | 5009 | /* If we got hit with a host reset while we were already resetting |
| 5010 | the adapter for some reason, and the reset failed. */ |
| 5011 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
| 5012 | ipr_trace; |
| 5013 | rc = FAILED; |
| 5014 | } |
| 5015 | |
| 5016 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5017 | LEAVE; |
| 5018 | return rc; |
| 5019 | } |
| 5020 | |
| 5021 | /** |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 5022 | * ipr_device_reset - Reset the device |
| 5023 | * @ioa_cfg: ioa config struct |
| 5024 | * @res: resource entry struct |
| 5025 | * |
| 5026 | * This function issues a device reset to the affected device. |
| 5027 | * If the device is a SCSI device, a LUN reset will be sent |
| 5028 | * to the device first. If that does not work, a target reset |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5029 | * will be sent. If the device is a SATA device, a PHY reset will |
| 5030 | * be sent. |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 5031 | * |
| 5032 | * Return value: |
| 5033 | * 0 on success / non-zero on failure |
| 5034 | **/ |
| 5035 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, |
| 5036 | struct ipr_resource_entry *res) |
| 5037 | { |
| 5038 | struct ipr_cmnd *ipr_cmd; |
| 5039 | struct ipr_ioarcb *ioarcb; |
| 5040 | struct ipr_cmd_pkt *cmd_pkt; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5041 | struct ipr_ioarcb_ata_regs *regs; |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 5042 | u32 ioasc; |
| 5043 | |
| 5044 | ENTER; |
| 5045 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 5046 | ioarcb = &ipr_cmd->ioarcb; |
| 5047 | cmd_pkt = &ioarcb->cmd_pkt; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5048 | |
| 5049 | if (ipr_cmd->ioa_cfg->sis64) { |
| 5050 | regs = &ipr_cmd->i.ata_ioadl.regs; |
| 5051 | ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); |
| 5052 | } else |
| 5053 | regs = &ioarcb->u.add_data.u.regs; |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 5054 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 5055 | ioarcb->res_handle = res->res_handle; |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 5056 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 5057 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5058 | if (ipr_is_gata(res)) { |
| 5059 | cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5060 | ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5061 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; |
| 5062 | } |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 5063 | |
| 5064 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5065 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5066 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5067 | if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { |
| 5068 | if (ipr_cmd->ioa_cfg->sis64) |
| 5069 | memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, |
| 5070 | sizeof(struct ipr_ioasa_gata)); |
| 5071 | else |
| 5072 | memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, |
| 5073 | sizeof(struct ipr_ioasa_gata)); |
| 5074 | } |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 5075 | |
| 5076 | LEAVE; |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 5077 | return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0; |
Brian King | c651309 | 2006-03-29 09:37:43 -0600 | [diff] [blame] | 5078 | } |
| 5079 | |
| 5080 | /** |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5081 | * ipr_sata_reset - Reset the SATA port |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 5082 | * @link: SATA link to reset |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5083 | * @classes: class of the attached device |
| 5084 | * |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 5085 | * This function issues a SATA phy reset to the affected ATA link. |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5086 | * |
| 5087 | * Return value: |
| 5088 | * 0 on success / non-zero on failure |
| 5089 | **/ |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 5090 | static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, |
Andrew Morton | 120bda3 | 2007-03-26 02:17:43 -0700 | [diff] [blame] | 5091 | unsigned long deadline) |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5092 | { |
Tejun Heo | cc0680a | 2007-08-06 18:36:23 +0900 | [diff] [blame] | 5093 | struct ipr_sata_port *sata_port = link->ap->private_data; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5094 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; |
| 5095 | struct ipr_resource_entry *res; |
| 5096 | unsigned long lock_flags = 0; |
| 5097 | int rc = -ENXIO; |
| 5098 | |
| 5099 | ENTER; |
| 5100 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 5101 | while (ioa_cfg->in_reset_reload) { |
Brian King | 73d98ff | 2006-11-21 10:27:58 -0600 | [diff] [blame] | 5102 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 5103 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 5104 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 5105 | } |
| 5106 | |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5107 | res = sata_port->res; |
| 5108 | if (res) { |
| 5109 | rc = ipr_device_reset(ioa_cfg, res); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 5110 | *classes = res->ata_class; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5111 | } |
| 5112 | |
| 5113 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 5114 | LEAVE; |
| 5115 | return rc; |
| 5116 | } |
| 5117 | |
| 5118 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5119 | * ipr_eh_dev_reset - Reset the device |
| 5120 | * @scsi_cmd: scsi command struct |
| 5121 | * |
| 5122 | * This function issues a device reset to the affected device. |
| 5123 | * A LUN reset will be sent to the device first. If that does |
| 5124 | * not work, a target reset will be sent. |
| 5125 | * |
| 5126 | * Return value: |
| 5127 | * SUCCESS / FAILED |
| 5128 | **/ |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 5129 | static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5130 | { |
| 5131 | struct ipr_cmnd *ipr_cmd; |
| 5132 | struct ipr_ioa_cfg *ioa_cfg; |
| 5133 | struct ipr_resource_entry *res; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5134 | struct ata_port *ap; |
| 5135 | int rc = 0; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5136 | struct ipr_hrr_queue *hrrq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5137 | |
| 5138 | ENTER; |
| 5139 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
| 5140 | res = scsi_cmd->device->hostdata; |
| 5141 | |
brking@us.ibm.com | eeb88307 | 2005-11-01 17:02:29 -0600 | [diff] [blame] | 5142 | if (!res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5143 | return FAILED; |
| 5144 | |
| 5145 | /* |
| 5146 | * If we are currently going through reset/reload, return failed. This will force the |
| 5147 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the |
| 5148 | * reset to complete |
| 5149 | */ |
| 5150 | if (ioa_cfg->in_reset_reload) |
| 5151 | return FAILED; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5152 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5153 | return FAILED; |
| 5154 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5155 | for_each_hrrq(hrrq, ioa_cfg) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5156 | spin_lock(&hrrq->_lock); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5157 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { |
| 5158 | if (ipr_cmd->ioarcb.res_handle == res->res_handle) { |
| 5159 | if (ipr_cmd->scsi_cmd) |
| 5160 | ipr_cmd->done = ipr_scsi_eh_done; |
| 5161 | if (ipr_cmd->qc) |
| 5162 | ipr_cmd->done = ipr_sata_eh_done; |
| 5163 | if (ipr_cmd->qc && |
| 5164 | !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { |
| 5165 | ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; |
| 5166 | ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; |
| 5167 | } |
Brian King | 7402ece | 2006-11-21 10:28:23 -0600 | [diff] [blame] | 5168 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5169 | } |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5170 | spin_unlock(&hrrq->_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5171 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5172 | res->resetting_device = 1; |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 5173 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5174 | |
| 5175 | if (ipr_is_gata(res) && res->sata_port) { |
| 5176 | ap = res->sata_port->ap; |
| 5177 | spin_unlock_irq(scsi_cmd->device->host->host_lock); |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 5178 | ata_std_error_handler(ap); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5179 | spin_lock_irq(scsi_cmd->device->host->host_lock); |
Brian King | 5af23d2 | 2007-05-09 15:36:35 -0500 | [diff] [blame] | 5180 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5181 | for_each_hrrq(hrrq, ioa_cfg) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5182 | spin_lock(&hrrq->_lock); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5183 | list_for_each_entry(ipr_cmd, |
| 5184 | &hrrq->hrrq_pending_q, queue) { |
| 5185 | if (ipr_cmd->ioarcb.res_handle == |
| 5186 | res->res_handle) { |
| 5187 | rc = -EIO; |
| 5188 | break; |
| 5189 | } |
Brian King | 5af23d2 | 2007-05-09 15:36:35 -0500 | [diff] [blame] | 5190 | } |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5191 | spin_unlock(&hrrq->_lock); |
Brian King | 5af23d2 | 2007-05-09 15:36:35 -0500 | [diff] [blame] | 5192 | } |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 5193 | } else |
| 5194 | rc = ipr_device_reset(ioa_cfg, res); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5195 | res->resetting_device = 0; |
Wendy Xiong | 0b1f8d4 | 2014-01-21 12:16:39 -0600 | [diff] [blame] | 5196 | res->reset_occurred = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5197 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5198 | LEAVE; |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 5199 | return rc ? FAILED : SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5200 | } |
| 5201 | |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 5202 | static int ipr_eh_dev_reset(struct scsi_cmnd *cmd) |
Jeff Garzik | 94d0e7b8 | 2005-05-28 07:55:48 -0400 | [diff] [blame] | 5203 | { |
| 5204 | int rc; |
Brian King | 6cdb081 | 2014-10-30 17:27:10 -0500 | [diff] [blame] | 5205 | struct ipr_ioa_cfg *ioa_cfg; |
| 5206 | |
| 5207 | ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; |
Jeff Garzik | 94d0e7b8 | 2005-05-28 07:55:48 -0400 | [diff] [blame] | 5208 | |
| 5209 | spin_lock_irq(cmd->device->host->host_lock); |
| 5210 | rc = __ipr_eh_dev_reset(cmd); |
| 5211 | spin_unlock_irq(cmd->device->host->host_lock); |
| 5212 | |
Brian King | 6cdb081 | 2014-10-30 17:27:10 -0500 | [diff] [blame] | 5213 | if (rc == SUCCESS) |
| 5214 | rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun); |
| 5215 | |
Jeff Garzik | 94d0e7b8 | 2005-05-28 07:55:48 -0400 | [diff] [blame] | 5216 | return rc; |
| 5217 | } |
| 5218 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5219 | /** |
| 5220 | * ipr_bus_reset_done - Op done function for bus reset. |
| 5221 | * @ipr_cmd: ipr command struct |
| 5222 | * |
| 5223 | * This function is the op done function for a bus reset |
| 5224 | * |
| 5225 | * Return value: |
| 5226 | * none |
| 5227 | **/ |
| 5228 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) |
| 5229 | { |
| 5230 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5231 | struct ipr_resource_entry *res; |
| 5232 | |
| 5233 | ENTER; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 5234 | if (!ioa_cfg->sis64) |
| 5235 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
| 5236 | if (res->res_handle == ipr_cmd->ioarcb.res_handle) { |
| 5237 | scsi_report_bus_reset(ioa_cfg->host, res->bus); |
| 5238 | break; |
| 5239 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5240 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5241 | |
| 5242 | /* |
| 5243 | * If abort has not completed, indicate the reset has, else call the |
| 5244 | * abort's done function to wake the sleeping eh thread |
| 5245 | */ |
| 5246 | if (ipr_cmd->sibling->sibling) |
| 5247 | ipr_cmd->sibling->sibling = NULL; |
| 5248 | else |
| 5249 | ipr_cmd->sibling->done(ipr_cmd->sibling); |
| 5250 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5251 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5252 | LEAVE; |
| 5253 | } |
| 5254 | |
| 5255 | /** |
| 5256 | * ipr_abort_timeout - An abort task has timed out |
| 5257 | * @ipr_cmd: ipr command struct |
| 5258 | * |
| 5259 | * This function handles when an abort task times out. If this |
| 5260 | * happens we issue a bus reset since we have resources tied |
| 5261 | * up that must be freed before returning to the midlayer. |
| 5262 | * |
| 5263 | * Return value: |
| 5264 | * none |
| 5265 | **/ |
| 5266 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) |
| 5267 | { |
| 5268 | struct ipr_cmnd *reset_cmd; |
| 5269 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 5270 | struct ipr_cmd_pkt *cmd_pkt; |
| 5271 | unsigned long lock_flags = 0; |
| 5272 | |
| 5273 | ENTER; |
| 5274 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 5275 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { |
| 5276 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 5277 | return; |
| 5278 | } |
| 5279 | |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 5280 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5281 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 5282 | ipr_cmd->sibling = reset_cmd; |
| 5283 | reset_cmd->sibling = ipr_cmd; |
| 5284 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; |
| 5285 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; |
| 5286 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 5287 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; |
| 5288 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; |
| 5289 | |
| 5290 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
| 5291 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 5292 | LEAVE; |
| 5293 | } |
| 5294 | |
| 5295 | /** |
| 5296 | * ipr_cancel_op - Cancel specified op |
| 5297 | * @scsi_cmd: scsi command struct |
| 5298 | * |
| 5299 | * This function cancels specified op. |
| 5300 | * |
| 5301 | * Return value: |
| 5302 | * SUCCESS / FAILED |
| 5303 | **/ |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 5304 | static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5305 | { |
| 5306 | struct ipr_cmnd *ipr_cmd; |
| 5307 | struct ipr_ioa_cfg *ioa_cfg; |
| 5308 | struct ipr_resource_entry *res; |
| 5309 | struct ipr_cmd_pkt *cmd_pkt; |
Kleber Sacilotto de Souza | a92fa25 | 2012-01-16 19:30:25 -0200 | [diff] [blame] | 5310 | u32 ioasc, int_reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5311 | int op_found = 0; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5312 | struct ipr_hrr_queue *hrrq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5313 | |
| 5314 | ENTER; |
| 5315 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; |
| 5316 | res = scsi_cmd->device->hostdata; |
| 5317 | |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 5318 | /* If we are currently going through reset/reload, return failed. |
| 5319 | * This will force the mid-layer to call ipr_eh_host_reset, |
| 5320 | * which will then go to sleep and wait for the reset to complete |
| 5321 | */ |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5322 | if (ioa_cfg->in_reset_reload || |
| 5323 | ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 5324 | return FAILED; |
Kleber Sacilotto de Souza | a92fa25 | 2012-01-16 19:30:25 -0200 | [diff] [blame] | 5325 | if (!res) |
| 5326 | return FAILED; |
| 5327 | |
| 5328 | /* |
| 5329 | * If we are aborting a timed out op, chances are that the timeout was caused |
| 5330 | * by a still not detected EEH error. In such cases, reading a register will |
| 5331 | * trigger the EEH recovery infrastructure. |
| 5332 | */ |
| 5333 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 5334 | |
| 5335 | if (!ipr_is_gscsi(res)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5336 | return FAILED; |
| 5337 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5338 | for_each_hrrq(hrrq, ioa_cfg) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5339 | spin_lock(&hrrq->_lock); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5340 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { |
| 5341 | if (ipr_cmd->scsi_cmd == scsi_cmd) { |
| 5342 | ipr_cmd->done = ipr_scsi_eh_done; |
| 5343 | op_found = 1; |
| 5344 | break; |
| 5345 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5346 | } |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5347 | spin_unlock(&hrrq->_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5348 | } |
| 5349 | |
| 5350 | if (!op_found) |
| 5351 | return SUCCESS; |
| 5352 | |
| 5353 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 5354 | ipr_cmd->ioarcb.res_handle = res->res_handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5355 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
| 5356 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 5357 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; |
| 5358 | ipr_cmd->u.sdev = scsi_cmd->device; |
| 5359 | |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 5360 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", |
| 5361 | scsi_cmd->cmnd[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5362 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5363 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5364 | |
| 5365 | /* |
| 5366 | * If the abort task timed out and we sent a bus reset, we will get |
| 5367 | * one the following responses to the abort |
| 5368 | */ |
| 5369 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { |
| 5370 | ioasc = 0; |
| 5371 | ipr_trace; |
| 5372 | } |
| 5373 | |
Kleber Sacilotto de Souza | c4ee22a | 2013-03-14 13:52:23 -0500 | [diff] [blame] | 5374 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 5375 | if (!ipr_is_naca_model(res)) |
| 5376 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5377 | |
| 5378 | LEAVE; |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 5379 | return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5380 | } |
| 5381 | |
| 5382 | /** |
| 5383 | * ipr_eh_abort - Abort a single op |
| 5384 | * @scsi_cmd: scsi command struct |
| 5385 | * |
| 5386 | * Return value: |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 5387 | * 0 if scan in progress / 1 if scan is complete |
| 5388 | **/ |
| 5389 | static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time) |
| 5390 | { |
| 5391 | unsigned long lock_flags; |
| 5392 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
| 5393 | int rc = 0; |
| 5394 | |
| 5395 | spin_lock_irqsave(shost->host_lock, lock_flags); |
| 5396 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done) |
| 5397 | rc = 1; |
| 5398 | if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2)) |
| 5399 | rc = 1; |
| 5400 | spin_unlock_irqrestore(shost->host_lock, lock_flags); |
| 5401 | return rc; |
| 5402 | } |
| 5403 | |
| 5404 | /** |
| 5405 | * ipr_eh_host_reset - Reset the host adapter |
| 5406 | * @scsi_cmd: scsi command struct |
| 5407 | * |
| 5408 | * Return value: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5409 | * SUCCESS / FAILED |
| 5410 | **/ |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 5411 | static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5412 | { |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 5413 | unsigned long flags; |
| 5414 | int rc; |
Brian King | 6cdb081 | 2014-10-30 17:27:10 -0500 | [diff] [blame] | 5415 | struct ipr_ioa_cfg *ioa_cfg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5416 | |
| 5417 | ENTER; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5418 | |
Brian King | 6cdb081 | 2014-10-30 17:27:10 -0500 | [diff] [blame] | 5419 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
| 5420 | |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 5421 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
| 5422 | rc = ipr_cancel_op(scsi_cmd); |
| 5423 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5424 | |
Brian King | 6cdb081 | 2014-10-30 17:27:10 -0500 | [diff] [blame] | 5425 | if (rc == SUCCESS) |
| 5426 | rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5427 | LEAVE; |
Jeff Garzik | 8fa728a | 2005-05-28 07:54:40 -0400 | [diff] [blame] | 5428 | return rc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5429 | } |
| 5430 | |
| 5431 | /** |
| 5432 | * ipr_handle_other_interrupt - Handle "other" interrupts |
| 5433 | * @ioa_cfg: ioa config struct |
Wayne Boyer | 634651f | 2010-08-27 14:45:07 -0700 | [diff] [blame] | 5434 | * @int_reg: interrupt register |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5435 | * |
| 5436 | * Return value: |
| 5437 | * IRQ_NONE / IRQ_HANDLED |
| 5438 | **/ |
Wayne Boyer | 634651f | 2010-08-27 14:45:07 -0700 | [diff] [blame] | 5439 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, |
Wayne Boyer | 630ad831 | 2011-04-07 12:12:30 -0700 | [diff] [blame] | 5440 | u32 int_reg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5441 | { |
| 5442 | irqreturn_t rc = IRQ_HANDLED; |
Wayne Boyer | 7dacb64 | 2011-04-12 10:29:02 -0700 | [diff] [blame] | 5443 | u32 int_mask_reg; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5444 | |
Wayne Boyer | 7dacb64 | 2011-04-12 10:29:02 -0700 | [diff] [blame] | 5445 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); |
| 5446 | int_reg &= ~int_mask_reg; |
| 5447 | |
| 5448 | /* If an interrupt on the adapter did not occur, ignore it. |
| 5449 | * Or in the case of SIS 64, check for a stage change interrupt. |
| 5450 | */ |
| 5451 | if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) { |
| 5452 | if (ioa_cfg->sis64) { |
| 5453 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 5454 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; |
| 5455 | if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { |
| 5456 | |
| 5457 | /* clear stage change */ |
| 5458 | writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); |
| 5459 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; |
| 5460 | list_del(&ioa_cfg->reset_cmd->queue); |
| 5461 | del_timer(&ioa_cfg->reset_cmd->timer); |
| 5462 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); |
| 5463 | return IRQ_HANDLED; |
| 5464 | } |
| 5465 | } |
| 5466 | |
| 5467 | return IRQ_NONE; |
| 5468 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5469 | |
| 5470 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
| 5471 | /* Mask the interrupt */ |
| 5472 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5473 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 5474 | |
| 5475 | list_del(&ioa_cfg->reset_cmd->queue); |
| 5476 | del_timer(&ioa_cfg->reset_cmd->timer); |
| 5477 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); |
Wayne Boyer | 7dacb64 | 2011-04-12 10:29:02 -0700 | [diff] [blame] | 5478 | } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { |
Brian King | 7dd2130 | 2012-03-14 21:20:08 -0500 | [diff] [blame] | 5479 | if (ioa_cfg->clear_isr) { |
| 5480 | if (ipr_debug && printk_ratelimit()) |
| 5481 | dev_err(&ioa_cfg->pdev->dev, |
| 5482 | "Spurious interrupt detected. 0x%08X\n", int_reg); |
| 5483 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); |
| 5484 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
| 5485 | return IRQ_NONE; |
| 5486 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5487 | } else { |
| 5488 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) |
| 5489 | ioa_cfg->ioa_unit_checked = 1; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5490 | else if (int_reg & IPR_PCII_NO_HOST_RRQ) |
| 5491 | dev_err(&ioa_cfg->pdev->dev, |
| 5492 | "No Host RRQ. 0x%08X\n", int_reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5493 | else |
| 5494 | dev_err(&ioa_cfg->pdev->dev, |
| 5495 | "Permanent IOA failure. 0x%08X\n", int_reg); |
| 5496 | |
| 5497 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 5498 | ioa_cfg->sdt_state = GET_DUMP; |
| 5499 | |
| 5500 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); |
| 5501 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 5502 | } |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5503 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5504 | return rc; |
| 5505 | } |
| 5506 | |
| 5507 | /** |
Wayne Boyer | 3feeb89d | 2009-10-20 11:09:00 -0700 | [diff] [blame] | 5508 | * ipr_isr_eh - Interrupt service routine error handler |
| 5509 | * @ioa_cfg: ioa config struct |
| 5510 | * @msg: message to log |
| 5511 | * |
| 5512 | * Return value: |
| 5513 | * none |
| 5514 | **/ |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5515 | static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number) |
Wayne Boyer | 3feeb89d | 2009-10-20 11:09:00 -0700 | [diff] [blame] | 5516 | { |
| 5517 | ioa_cfg->errors_logged++; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5518 | dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number); |
Wayne Boyer | 3feeb89d | 2009-10-20 11:09:00 -0700 | [diff] [blame] | 5519 | |
| 5520 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
| 5521 | ioa_cfg->sdt_state = GET_DUMP; |
| 5522 | |
| 5523 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 5524 | } |
| 5525 | |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5526 | static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget, |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5527 | struct list_head *doneq) |
| 5528 | { |
| 5529 | u32 ioasc; |
| 5530 | u16 cmd_index; |
| 5531 | struct ipr_cmnd *ipr_cmd; |
| 5532 | struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg; |
| 5533 | int num_hrrq = 0; |
| 5534 | |
| 5535 | /* If interrupts are disabled, ignore the interrupt */ |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5536 | if (!hrr_queue->allow_interrupts) |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5537 | return 0; |
| 5538 | |
| 5539 | while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
| 5540 | hrr_queue->toggle_bit) { |
| 5541 | |
| 5542 | cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) & |
| 5543 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> |
| 5544 | IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; |
| 5545 | |
| 5546 | if (unlikely(cmd_index > hrr_queue->max_cmd_id || |
| 5547 | cmd_index < hrr_queue->min_cmd_id)) { |
| 5548 | ipr_isr_eh(ioa_cfg, |
| 5549 | "Invalid response handle from IOA: ", |
| 5550 | cmd_index); |
| 5551 | break; |
| 5552 | } |
| 5553 | |
| 5554 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; |
| 5555 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
| 5556 | |
| 5557 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); |
| 5558 | |
| 5559 | list_move_tail(&ipr_cmd->queue, doneq); |
| 5560 | |
| 5561 | if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) { |
| 5562 | hrr_queue->hrrq_curr++; |
| 5563 | } else { |
| 5564 | hrr_queue->hrrq_curr = hrr_queue->hrrq_start; |
| 5565 | hrr_queue->toggle_bit ^= 1u; |
| 5566 | } |
| 5567 | num_hrrq++; |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5568 | if (budget > 0 && num_hrrq >= budget) |
| 5569 | break; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5570 | } |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5571 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5572 | return num_hrrq; |
| 5573 | } |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5574 | |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 5575 | static int ipr_iopoll(struct irq_poll *iop, int budget) |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5576 | { |
| 5577 | struct ipr_ioa_cfg *ioa_cfg; |
| 5578 | struct ipr_hrr_queue *hrrq; |
| 5579 | struct ipr_cmnd *ipr_cmd, *temp; |
| 5580 | unsigned long hrrq_flags; |
| 5581 | int completed_ops; |
| 5582 | LIST_HEAD(doneq); |
| 5583 | |
| 5584 | hrrq = container_of(iop, struct ipr_hrr_queue, iopoll); |
| 5585 | ioa_cfg = hrrq->ioa_cfg; |
| 5586 | |
| 5587 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
| 5588 | completed_ops = ipr_process_hrrq(hrrq, budget, &doneq); |
| 5589 | |
| 5590 | if (completed_ops < budget) |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 5591 | irq_poll_complete(iop); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5592 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
| 5593 | |
| 5594 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
| 5595 | list_del(&ipr_cmd->queue); |
| 5596 | del_timer(&ipr_cmd->timer); |
| 5597 | ipr_cmd->fast_done(ipr_cmd); |
| 5598 | } |
| 5599 | |
| 5600 | return completed_ops; |
| 5601 | } |
| 5602 | |
Wayne Boyer | 3feeb89d | 2009-10-20 11:09:00 -0700 | [diff] [blame] | 5603 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5604 | * ipr_isr - Interrupt service routine |
| 5605 | * @irq: irq number |
| 5606 | * @devp: pointer to ioa config struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5607 | * |
| 5608 | * Return value: |
| 5609 | * IRQ_NONE / IRQ_HANDLED |
| 5610 | **/ |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 5611 | static irqreturn_t ipr_isr(int irq, void *devp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5612 | { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5613 | struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; |
| 5614 | struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5615 | unsigned long hrrq_flags = 0; |
Wayne Boyer | 7dacb64 | 2011-04-12 10:29:02 -0700 | [diff] [blame] | 5616 | u32 int_reg = 0; |
Wayne Boyer | 3feeb89d | 2009-10-20 11:09:00 -0700 | [diff] [blame] | 5617 | int num_hrrq = 0; |
Wayne Boyer | 7dacb64 | 2011-04-12 10:29:02 -0700 | [diff] [blame] | 5618 | int irq_none = 0; |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 5619 | struct ipr_cmnd *ipr_cmd, *temp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5620 | irqreturn_t rc = IRQ_NONE; |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 5621 | LIST_HEAD(doneq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5622 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5623 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5624 | /* If interrupts are disabled, ignore the interrupt */ |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5625 | if (!hrrq->allow_interrupts) { |
| 5626 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5627 | return IRQ_NONE; |
| 5628 | } |
| 5629 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5630 | while (1) { |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5631 | if (ipr_process_hrrq(hrrq, -1, &doneq)) { |
| 5632 | rc = IRQ_HANDLED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5633 | |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5634 | if (!ioa_cfg->clear_isr) |
| 5635 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5636 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5637 | /* Clear the PCI interrupt */ |
Wayne Boyer | a5442ba | 2011-05-17 09:18:53 -0700 | [diff] [blame] | 5638 | num_hrrq = 0; |
Wayne Boyer | 3feeb89d | 2009-10-20 11:09:00 -0700 | [diff] [blame] | 5639 | do { |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5640 | writel(IPR_PCII_HRRQ_UPDATED, |
| 5641 | ioa_cfg->regs.clr_interrupt_reg32); |
Wayne Boyer | 7dacb64 | 2011-04-12 10:29:02 -0700 | [diff] [blame] | 5642 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
Wayne Boyer | 3feeb89d | 2009-10-20 11:09:00 -0700 | [diff] [blame] | 5643 | } while (int_reg & IPR_PCII_HRRQ_UPDATED && |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5644 | num_hrrq++ < IPR_MAX_HRRQ_RETRIES); |
Wayne Boyer | 3feeb89d | 2009-10-20 11:09:00 -0700 | [diff] [blame] | 5645 | |
Wayne Boyer | 7dacb64 | 2011-04-12 10:29:02 -0700 | [diff] [blame] | 5646 | } else if (rc == IRQ_NONE && irq_none == 0) { |
| 5647 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
| 5648 | irq_none++; |
Wayne Boyer | a5442ba | 2011-05-17 09:18:53 -0700 | [diff] [blame] | 5649 | } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES && |
| 5650 | int_reg & IPR_PCII_HRRQ_UPDATED) { |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5651 | ipr_isr_eh(ioa_cfg, |
| 5652 | "Error clearing HRRQ: ", num_hrrq); |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 5653 | rc = IRQ_HANDLED; |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5654 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5655 | } else |
| 5656 | break; |
| 5657 | } |
| 5658 | |
| 5659 | if (unlikely(rc == IRQ_NONE)) |
Wayne Boyer | 634651f | 2010-08-27 14:45:07 -0700 | [diff] [blame] | 5660 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5661 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5662 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 5663 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
| 5664 | list_del(&ipr_cmd->queue); |
| 5665 | del_timer(&ipr_cmd->timer); |
| 5666 | ipr_cmd->fast_done(ipr_cmd); |
| 5667 | } |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5668 | return rc; |
| 5669 | } |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 5670 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5671 | /** |
| 5672 | * ipr_isr_mhrrq - Interrupt service routine |
| 5673 | * @irq: irq number |
| 5674 | * @devp: pointer to ioa config struct |
| 5675 | * |
| 5676 | * Return value: |
| 5677 | * IRQ_NONE / IRQ_HANDLED |
| 5678 | **/ |
| 5679 | static irqreturn_t ipr_isr_mhrrq(int irq, void *devp) |
| 5680 | { |
| 5681 | struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5682 | struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5683 | unsigned long hrrq_flags = 0; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5684 | struct ipr_cmnd *ipr_cmd, *temp; |
| 5685 | irqreturn_t rc = IRQ_NONE; |
| 5686 | LIST_HEAD(doneq); |
| 5687 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5688 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5689 | |
| 5690 | /* If interrupts are disabled, ignore the interrupt */ |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5691 | if (!hrrq->allow_interrupts) { |
| 5692 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5693 | return IRQ_NONE; |
| 5694 | } |
| 5695 | |
Jens Axboe | 89f8b33 | 2014-03-13 09:38:42 -0600 | [diff] [blame] | 5696 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5697 | if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
| 5698 | hrrq->toggle_bit) { |
Christoph Hellwig | ea51190 | 2015-12-07 06:41:11 -0800 | [diff] [blame] | 5699 | irq_poll_sched(&hrrq->iopoll); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5700 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
| 5701 | return IRQ_HANDLED; |
| 5702 | } |
| 5703 | } else { |
| 5704 | if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
| 5705 | hrrq->toggle_bit) |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5706 | |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 5707 | if (ipr_process_hrrq(hrrq, -1, &doneq)) |
| 5708 | rc = IRQ_HANDLED; |
| 5709 | } |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5710 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 5711 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5712 | |
| 5713 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
| 5714 | list_del(&ipr_cmd->queue); |
| 5715 | del_timer(&ipr_cmd->timer); |
| 5716 | ipr_cmd->fast_done(ipr_cmd); |
| 5717 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5718 | return rc; |
| 5719 | } |
| 5720 | |
| 5721 | /** |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5722 | * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5723 | * @ioa_cfg: ioa config struct |
| 5724 | * @ipr_cmd: ipr command struct |
| 5725 | * |
| 5726 | * Return value: |
| 5727 | * 0 on success / -1 on failure |
| 5728 | **/ |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5729 | static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, |
| 5730 | struct ipr_cmnd *ipr_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5731 | { |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5732 | int i, nseg; |
| 5733 | struct scatterlist *sg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5734 | u32 length; |
| 5735 | u32 ioadl_flags = 0; |
| 5736 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 5737 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5738 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5739 | |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5740 | length = scsi_bufflen(scsi_cmd); |
| 5741 | if (!length) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5742 | return 0; |
| 5743 | |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5744 | nseg = scsi_dma_map(scsi_cmd); |
| 5745 | if (nseg < 0) { |
Anton Blanchard | 51f52a4 | 2011-05-09 10:07:40 +1000 | [diff] [blame] | 5746 | if (printk_ratelimit()) |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 5747 | dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n"); |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5748 | return -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5749 | } |
| 5750 | |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5751 | ipr_cmd->dma_use_sg = nseg; |
| 5752 | |
Wayne Boyer | 438b033 | 2010-05-10 09:13:00 -0700 | [diff] [blame] | 5753 | ioarcb->data_transfer_length = cpu_to_be32(length); |
Wayne Boyer | b8803b1 | 2010-05-14 08:55:13 -0700 | [diff] [blame] | 5754 | ioarcb->ioadl_len = |
| 5755 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); |
Wayne Boyer | 438b033 | 2010-05-10 09:13:00 -0700 | [diff] [blame] | 5756 | |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5757 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
| 5758 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
| 5759 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5760 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) |
| 5761 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
| 5762 | |
| 5763 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { |
| 5764 | ioadl64[i].flags = cpu_to_be32(ioadl_flags); |
| 5765 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); |
| 5766 | ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); |
| 5767 | } |
| 5768 | |
| 5769 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
| 5770 | return 0; |
| 5771 | } |
| 5772 | |
| 5773 | /** |
| 5774 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer |
| 5775 | * @ioa_cfg: ioa config struct |
| 5776 | * @ipr_cmd: ipr command struct |
| 5777 | * |
| 5778 | * Return value: |
| 5779 | * 0 on success / -1 on failure |
| 5780 | **/ |
| 5781 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, |
| 5782 | struct ipr_cmnd *ipr_cmd) |
| 5783 | { |
| 5784 | int i, nseg; |
| 5785 | struct scatterlist *sg; |
| 5786 | u32 length; |
| 5787 | u32 ioadl_flags = 0; |
| 5788 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 5789 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 5790 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
| 5791 | |
| 5792 | length = scsi_bufflen(scsi_cmd); |
| 5793 | if (!length) |
| 5794 | return 0; |
| 5795 | |
| 5796 | nseg = scsi_dma_map(scsi_cmd); |
| 5797 | if (nseg < 0) { |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 5798 | dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n"); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5799 | return -1; |
| 5800 | } |
| 5801 | |
| 5802 | ipr_cmd->dma_use_sg = nseg; |
| 5803 | |
| 5804 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
| 5805 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
| 5806 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 5807 | ioarcb->data_transfer_length = cpu_to_be32(length); |
| 5808 | ioarcb->ioadl_len = |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5809 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
| 5810 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { |
| 5811 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
| 5812 | ioarcb->read_data_transfer_length = cpu_to_be32(length); |
| 5813 | ioarcb->read_ioadl_len = |
| 5814 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
| 5815 | } |
| 5816 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5817 | if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { |
| 5818 | ioadl = ioarcb->u.add_data.u.ioadl; |
| 5819 | ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + |
| 5820 | offsetof(struct ipr_ioarcb, u.add_data)); |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5821 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
| 5822 | } |
| 5823 | |
| 5824 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { |
| 5825 | ioadl[i].flags_and_data_len = |
| 5826 | cpu_to_be32(ioadl_flags | sg_dma_len(sg)); |
| 5827 | ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); |
| 5828 | } |
| 5829 | |
| 5830 | ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
| 5831 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5832 | } |
| 5833 | |
| 5834 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5835 | * ipr_erp_done - Process completion of ERP for a device |
| 5836 | * @ipr_cmd: ipr command struct |
| 5837 | * |
| 5838 | * This function copies the sense buffer into the scsi_cmd |
| 5839 | * struct and pushes the scsi_done function. |
| 5840 | * |
| 5841 | * Return value: |
| 5842 | * nothing |
| 5843 | **/ |
| 5844 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) |
| 5845 | { |
| 5846 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 5847 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5848 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5849 | |
| 5850 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { |
| 5851 | scsi_cmd->result |= (DID_ERROR << 16); |
Brian King | fb3ed3c | 2006-03-29 09:37:37 -0600 | [diff] [blame] | 5852 | scmd_printk(KERN_ERR, scsi_cmd, |
| 5853 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5854 | } else { |
| 5855 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, |
| 5856 | SCSI_SENSE_BUFFERSIZE); |
| 5857 | } |
| 5858 | |
| 5859 | if (res) { |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 5860 | if (!ipr_is_naca_model(res)) |
| 5861 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5862 | res->in_erp = 0; |
| 5863 | } |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 5864 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 5865 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5866 | scsi_cmd->scsi_done(scsi_cmd); |
| 5867 | } |
| 5868 | |
| 5869 | /** |
| 5870 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP |
| 5871 | * @ipr_cmd: ipr command struct |
| 5872 | * |
| 5873 | * Return value: |
| 5874 | * none |
| 5875 | **/ |
| 5876 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) |
| 5877 | { |
Brian King | 51b1c7e | 2007-03-29 12:43:50 -0500 | [diff] [blame] | 5878 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5879 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5880 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5881 | |
| 5882 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5883 | ioarcb->data_transfer_length = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5884 | ioarcb->read_data_transfer_length = 0; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5885 | ioarcb->ioadl_len = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5886 | ioarcb->read_ioadl_len = 0; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5887 | ioasa->hdr.ioasc = 0; |
| 5888 | ioasa->hdr.residual_data_len = 0; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5889 | |
| 5890 | if (ipr_cmd->ioa_cfg->sis64) |
| 5891 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
| 5892 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
| 5893 | else { |
| 5894 | ioarcb->write_ioadl_addr = |
| 5895 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
| 5896 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
| 5897 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5898 | } |
| 5899 | |
| 5900 | /** |
| 5901 | * ipr_erp_request_sense - Send request sense to a device |
| 5902 | * @ipr_cmd: ipr command struct |
| 5903 | * |
| 5904 | * This function sends a request sense to a device as a result |
| 5905 | * of a check condition. |
| 5906 | * |
| 5907 | * Return value: |
| 5908 | * nothing |
| 5909 | **/ |
| 5910 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) |
| 5911 | { |
| 5912 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5913 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5914 | |
| 5915 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { |
| 5916 | ipr_erp_done(ipr_cmd); |
| 5917 | return; |
| 5918 | } |
| 5919 | |
| 5920 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); |
| 5921 | |
| 5922 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; |
| 5923 | cmd_pkt->cdb[0] = REQUEST_SENSE; |
| 5924 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; |
| 5925 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; |
| 5926 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
| 5927 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); |
| 5928 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 5929 | ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, |
| 5930 | SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5931 | |
| 5932 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, |
| 5933 | IPR_REQUEST_SENSE_TIMEOUT * 2); |
| 5934 | } |
| 5935 | |
| 5936 | /** |
| 5937 | * ipr_erp_cancel_all - Send cancel all to a device |
| 5938 | * @ipr_cmd: ipr command struct |
| 5939 | * |
| 5940 | * This function sends a cancel all to a device to clear the |
| 5941 | * queue. If we are running TCQ on the device, QERR is set to 1, |
| 5942 | * which means all outstanding ops have been dropped on the floor. |
| 5943 | * Cancel all will return them to us. |
| 5944 | * |
| 5945 | * Return value: |
| 5946 | * nothing |
| 5947 | **/ |
| 5948 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) |
| 5949 | { |
| 5950 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 5951 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
| 5952 | struct ipr_cmd_pkt *cmd_pkt; |
| 5953 | |
| 5954 | res->in_erp = 1; |
| 5955 | |
| 5956 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); |
| 5957 | |
Christoph Hellwig | 17ea012 | 2014-11-24 15:36:20 +0100 | [diff] [blame] | 5958 | if (!scsi_cmd->device->simple_tags) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5959 | ipr_erp_request_sense(ipr_cmd); |
| 5960 | return; |
| 5961 | } |
| 5962 | |
| 5963 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
| 5964 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 5965 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; |
| 5966 | |
| 5967 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, |
| 5968 | IPR_CANCEL_ALL_TIMEOUT); |
| 5969 | } |
| 5970 | |
| 5971 | /** |
| 5972 | * ipr_dump_ioasa - Dump contents of IOASA |
| 5973 | * @ioa_cfg: ioa config struct |
| 5974 | * @ipr_cmd: ipr command struct |
Brian King | fe964d0 | 2006-03-29 09:37:29 -0600 | [diff] [blame] | 5975 | * @res: resource entry struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5976 | * |
| 5977 | * This function is invoked by the interrupt handler when ops |
| 5978 | * fail. It will log the IOASA if appropriate. Only called |
| 5979 | * for GPDD ops. |
| 5980 | * |
| 5981 | * Return value: |
| 5982 | * none |
| 5983 | **/ |
| 5984 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, |
Brian King | fe964d0 | 2006-03-29 09:37:29 -0600 | [diff] [blame] | 5985 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5986 | { |
| 5987 | int i; |
| 5988 | u16 data_len; |
Brian King | b0692dd | 2007-03-29 12:43:09 -0500 | [diff] [blame] | 5989 | u32 ioasc, fd_ioasc; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5990 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5991 | __be32 *ioasa_data = (__be32 *)ioasa; |
| 5992 | int error_index; |
| 5993 | |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 5994 | ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; |
| 5995 | fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5996 | |
| 5997 | if (0 == ioasc) |
| 5998 | return; |
| 5999 | |
| 6000 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) |
| 6001 | return; |
| 6002 | |
Brian King | b0692dd | 2007-03-29 12:43:09 -0500 | [diff] [blame] | 6003 | if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) |
| 6004 | error_index = ipr_get_error(fd_ioasc); |
| 6005 | else |
| 6006 | error_index = ipr_get_error(ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6007 | |
| 6008 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { |
| 6009 | /* Don't log an error if the IOA already logged one */ |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6010 | if (ioasa->hdr.ilid != 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6011 | return; |
| 6012 | |
Brian King | cc9bd5d | 2007-03-29 12:43:01 -0500 | [diff] [blame] | 6013 | if (!ipr_is_gscsi(res)) |
| 6014 | return; |
| 6015 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6016 | if (ipr_error_table[error_index].log_ioasa == 0) |
| 6017 | return; |
| 6018 | } |
| 6019 | |
Brian King | fe964d0 | 2006-03-29 09:37:29 -0600 | [diff] [blame] | 6020 | ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6021 | |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6022 | data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); |
| 6023 | if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) |
| 6024 | data_len = sizeof(struct ipr_ioasa64); |
| 6025 | else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6026 | data_len = sizeof(struct ipr_ioasa); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6027 | |
| 6028 | ipr_err("IOASA Dump:\n"); |
| 6029 | |
| 6030 | for (i = 0; i < data_len / 4; i += 4) { |
| 6031 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
| 6032 | be32_to_cpu(ioasa_data[i]), |
| 6033 | be32_to_cpu(ioasa_data[i+1]), |
| 6034 | be32_to_cpu(ioasa_data[i+2]), |
| 6035 | be32_to_cpu(ioasa_data[i+3])); |
| 6036 | } |
| 6037 | } |
| 6038 | |
| 6039 | /** |
| 6040 | * ipr_gen_sense - Generate SCSI sense data from an IOASA |
| 6041 | * @ioasa: IOASA |
| 6042 | * @sense_buf: sense data buffer |
| 6043 | * |
| 6044 | * Return value: |
| 6045 | * none |
| 6046 | **/ |
| 6047 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) |
| 6048 | { |
| 6049 | u32 failing_lba; |
| 6050 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; |
| 6051 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6052 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
| 6053 | u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6054 | |
| 6055 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); |
| 6056 | |
| 6057 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) |
| 6058 | return; |
| 6059 | |
| 6060 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; |
| 6061 | |
| 6062 | if (ipr_is_vset_device(res) && |
| 6063 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && |
| 6064 | ioasa->u.vset.failing_lba_hi != 0) { |
| 6065 | sense_buf[0] = 0x72; |
| 6066 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); |
| 6067 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); |
| 6068 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); |
| 6069 | |
| 6070 | sense_buf[7] = 12; |
| 6071 | sense_buf[8] = 0; |
| 6072 | sense_buf[9] = 0x0A; |
| 6073 | sense_buf[10] = 0x80; |
| 6074 | |
| 6075 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); |
| 6076 | |
| 6077 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; |
| 6078 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; |
| 6079 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; |
| 6080 | sense_buf[15] = failing_lba & 0x000000ff; |
| 6081 | |
| 6082 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); |
| 6083 | |
| 6084 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; |
| 6085 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; |
| 6086 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; |
| 6087 | sense_buf[19] = failing_lba & 0x000000ff; |
| 6088 | } else { |
| 6089 | sense_buf[0] = 0x70; |
| 6090 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); |
| 6091 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); |
| 6092 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); |
| 6093 | |
| 6094 | /* Illegal request */ |
| 6095 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6096 | (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6097 | sense_buf[7] = 10; /* additional length */ |
| 6098 | |
| 6099 | /* IOARCB was in error */ |
| 6100 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) |
| 6101 | sense_buf[15] = 0xC0; |
| 6102 | else /* Parameter data was invalid */ |
| 6103 | sense_buf[15] = 0x80; |
| 6104 | |
| 6105 | sense_buf[16] = |
| 6106 | ((IPR_FIELD_POINTER_MASK & |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6107 | be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6108 | sense_buf[17] = |
| 6109 | (IPR_FIELD_POINTER_MASK & |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6110 | be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6111 | } else { |
| 6112 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { |
| 6113 | if (ipr_is_vset_device(res)) |
| 6114 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); |
| 6115 | else |
| 6116 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); |
| 6117 | |
| 6118 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ |
| 6119 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; |
| 6120 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; |
| 6121 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; |
| 6122 | sense_buf[6] = failing_lba & 0x000000ff; |
| 6123 | } |
| 6124 | |
| 6125 | sense_buf[7] = 6; /* additional length */ |
| 6126 | } |
| 6127 | } |
| 6128 | } |
| 6129 | |
| 6130 | /** |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6131 | * ipr_get_autosense - Copy autosense data to sense buffer |
| 6132 | * @ipr_cmd: ipr command struct |
| 6133 | * |
| 6134 | * This function copies the autosense buffer to the buffer |
| 6135 | * in the scsi_cmd, if there is autosense available. |
| 6136 | * |
| 6137 | * Return value: |
| 6138 | * 1 if autosense was available / 0 if not |
| 6139 | **/ |
| 6140 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) |
| 6141 | { |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6142 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
| 6143 | struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6144 | |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6145 | if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6146 | return 0; |
| 6147 | |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6148 | if (ipr_cmd->ioa_cfg->sis64) |
| 6149 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, |
| 6150 | min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), |
| 6151 | SCSI_SENSE_BUFFERSIZE)); |
| 6152 | else |
| 6153 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, |
| 6154 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), |
| 6155 | SCSI_SENSE_BUFFERSIZE)); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6156 | return 1; |
| 6157 | } |
| 6158 | |
| 6159 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6160 | * ipr_erp_start - Process an error response for a SCSI op |
| 6161 | * @ioa_cfg: ioa config struct |
| 6162 | * @ipr_cmd: ipr command struct |
| 6163 | * |
| 6164 | * This function determines whether or not to initiate ERP |
| 6165 | * on the affected device. |
| 6166 | * |
| 6167 | * Return value: |
| 6168 | * nothing |
| 6169 | **/ |
| 6170 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, |
| 6171 | struct ipr_cmnd *ipr_cmd) |
| 6172 | { |
| 6173 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
| 6174 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6175 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Brian King | 8a04899 | 2007-04-26 16:00:10 -0500 | [diff] [blame] | 6176 | u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6177 | |
| 6178 | if (!res) { |
| 6179 | ipr_scsi_eh_done(ipr_cmd); |
| 6180 | return; |
| 6181 | } |
| 6182 | |
Brian King | 8a04899 | 2007-04-26 16:00:10 -0500 | [diff] [blame] | 6183 | if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6184 | ipr_gen_sense(ipr_cmd); |
| 6185 | |
Brian King | cc9bd5d | 2007-03-29 12:43:01 -0500 | [diff] [blame] | 6186 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
| 6187 | |
Brian King | 8a04899 | 2007-04-26 16:00:10 -0500 | [diff] [blame] | 6188 | switch (masked_ioasc) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6189 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6190 | if (ipr_is_naca_model(res)) |
| 6191 | scsi_cmd->result |= (DID_ABORT << 16); |
| 6192 | else |
| 6193 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6194 | break; |
| 6195 | case IPR_IOASC_IR_RESOURCE_HANDLE: |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 6196 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6197 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
| 6198 | break; |
| 6199 | case IPR_IOASC_HW_SEL_TIMEOUT: |
| 6200 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6201 | if (!ipr_is_naca_model(res)) |
| 6202 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6203 | break; |
| 6204 | case IPR_IOASC_SYNC_REQUIRED: |
| 6205 | if (!res->in_erp) |
| 6206 | res->needs_sync_complete = 1; |
| 6207 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
| 6208 | break; |
| 6209 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ |
brking@us.ibm.com | b0df54b | 2005-11-01 17:01:47 -0600 | [diff] [blame] | 6210 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6211 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
| 6212 | break; |
| 6213 | case IPR_IOASC_BUS_WAS_RESET: |
| 6214 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: |
| 6215 | /* |
| 6216 | * Report the bus reset and ask for a retry. The device |
| 6217 | * will give CC/UA the next command. |
| 6218 | */ |
| 6219 | if (!res->resetting_device) |
| 6220 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); |
| 6221 | scsi_cmd->result |= (DID_ERROR << 16); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6222 | if (!ipr_is_naca_model(res)) |
| 6223 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6224 | break; |
| 6225 | case IPR_IOASC_HW_DEV_BUS_STATUS: |
| 6226 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); |
| 6227 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6228 | if (!ipr_get_autosense(ipr_cmd)) { |
| 6229 | if (!ipr_is_naca_model(res)) { |
| 6230 | ipr_erp_cancel_all(ipr_cmd); |
| 6231 | return; |
| 6232 | } |
| 6233 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6234 | } |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6235 | if (!ipr_is_naca_model(res)) |
| 6236 | res->needs_sync_complete = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6237 | break; |
| 6238 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: |
| 6239 | break; |
Wen Xiong | f8ee25d | 2015-03-26 11:23:58 -0500 | [diff] [blame] | 6240 | case IPR_IOASC_IR_NON_OPTIMIZED: |
| 6241 | if (res->raw_mode) { |
| 6242 | res->raw_mode = 0; |
| 6243 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
| 6244 | } else |
| 6245 | scsi_cmd->result |= (DID_ERROR << 16); |
| 6246 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6247 | default: |
Brian King | 5b7304f | 2006-08-02 14:57:51 -0500 | [diff] [blame] | 6248 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
| 6249 | scsi_cmd->result |= (DID_ERROR << 16); |
brking@us.ibm.com | ee0a90f | 2005-11-01 17:02:22 -0600 | [diff] [blame] | 6250 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6251 | res->needs_sync_complete = 1; |
| 6252 | break; |
| 6253 | } |
| 6254 | |
FUJITA Tomonori | 63015bc | 2007-05-26 00:26:59 +0900 | [diff] [blame] | 6255 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6256 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6257 | scsi_cmd->scsi_done(scsi_cmd); |
| 6258 | } |
| 6259 | |
| 6260 | /** |
| 6261 | * ipr_scsi_done - mid-layer done function |
| 6262 | * @ipr_cmd: ipr command struct |
| 6263 | * |
| 6264 | * This function is invoked by the interrupt handler for |
| 6265 | * ops generated by the SCSI mid-layer |
| 6266 | * |
| 6267 | * Return value: |
| 6268 | * none |
| 6269 | **/ |
| 6270 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) |
| 6271 | { |
| 6272 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 6273 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6274 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Brian King | 36b8e18 | 2015-07-14 11:41:29 -0500 | [diff] [blame] | 6275 | unsigned long lock_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6276 | |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6277 | scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6278 | |
| 6279 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 6280 | scsi_dma_unmap(scsi_cmd); |
| 6281 | |
Brian King | 36b8e18 | 2015-07-14 11:41:29 -0500 | [diff] [blame] | 6282 | spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6283 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6284 | scsi_cmd->scsi_done(scsi_cmd); |
Brian King | 36b8e18 | 2015-07-14 11:41:29 -0500 | [diff] [blame] | 6285 | spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags); |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 6286 | } else { |
Brian King | 36b8e18 | 2015-07-14 11:41:29 -0500 | [diff] [blame] | 6287 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 6288 | spin_lock(&ipr_cmd->hrrq->_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6289 | ipr_erp_start(ioa_cfg, ipr_cmd); |
Brian King | 36b8e18 | 2015-07-14 11:41:29 -0500 | [diff] [blame] | 6290 | spin_unlock(&ipr_cmd->hrrq->_lock); |
| 6291 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 6292 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6293 | } |
| 6294 | |
| 6295 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6296 | * ipr_queuecommand - Queue a mid-layer request |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6297 | * @shost: scsi host struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6298 | * @scsi_cmd: scsi command struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6299 | * |
| 6300 | * This function queues a request generated by the mid-layer. |
| 6301 | * |
| 6302 | * Return value: |
| 6303 | * 0 on success |
| 6304 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy |
| 6305 | * SCSI_MLQUEUE_HOST_BUSY if host is busy |
| 6306 | **/ |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6307 | static int ipr_queuecommand(struct Scsi_Host *shost, |
| 6308 | struct scsi_cmnd *scsi_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6309 | { |
| 6310 | struct ipr_ioa_cfg *ioa_cfg; |
| 6311 | struct ipr_resource_entry *res; |
| 6312 | struct ipr_ioarcb *ioarcb; |
| 6313 | struct ipr_cmnd *ipr_cmd; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6314 | unsigned long hrrq_flags, lock_flags; |
Dan Carpenter | d12f157 | 2012-07-30 11:18:22 +0300 | [diff] [blame] | 6315 | int rc; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6316 | struct ipr_hrr_queue *hrrq; |
| 6317 | int hrrq_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6318 | |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6319 | ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
| 6320 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6321 | scsi_cmd->result = (DID_OK << 16); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6322 | res = scsi_cmd->device->hostdata; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6323 | |
| 6324 | if (ipr_is_gata(res) && res->sata_port) { |
| 6325 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 6326 | rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap); |
| 6327 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 6328 | return rc; |
| 6329 | } |
| 6330 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6331 | hrrq_id = ipr_get_hrrq_index(ioa_cfg); |
| 6332 | hrrq = &ioa_cfg->hrrq[hrrq_id]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6333 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6334 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6335 | /* |
| 6336 | * We are currently blocking all devices due to a host reset |
| 6337 | * We have told the host to stop giving us new requests, but |
| 6338 | * ERP ops don't count. FIXME |
| 6339 | */ |
Brian King | bfae782 | 2013-01-30 23:45:08 -0600 | [diff] [blame] | 6340 | if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6341 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6342 | return SCSI_MLQUEUE_HOST_BUSY; |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6343 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6344 | |
| 6345 | /* |
| 6346 | * FIXME - Create scsi_set_host_offline interface |
| 6347 | * and the ioa_is_dead check can be removed |
| 6348 | */ |
Brian King | bfae782 | 2013-01-30 23:45:08 -0600 | [diff] [blame] | 6349 | if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6350 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6351 | goto err_nodev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6352 | } |
| 6353 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6354 | ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); |
| 6355 | if (ipr_cmd == NULL) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6356 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6357 | return SCSI_MLQUEUE_HOST_BUSY; |
| 6358 | } |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6359 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6360 | |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 6361 | ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6362 | ioarcb = &ipr_cmd->ioarcb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6363 | |
| 6364 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); |
| 6365 | ipr_cmd->scsi_cmd = scsi_cmd; |
Brian King | 172cd6e | 2012-07-17 08:14:40 -0500 | [diff] [blame] | 6366 | ipr_cmd->done = ipr_scsi_eh_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6367 | |
Gabriel Krisman Bertazi | 4f92d01 | 2015-11-03 16:26:07 -0200 | [diff] [blame] | 6368 | if (ipr_is_gscsi(res)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6369 | if (scsi_cmd->underflow == 0) |
| 6370 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
| 6371 | |
Gabriel Krisman Bertazi | 4f92d01 | 2015-11-03 16:26:07 -0200 | [diff] [blame] | 6372 | if (res->reset_occurred) { |
Wendy Xiong | 0b1f8d4 | 2014-01-21 12:16:39 -0600 | [diff] [blame] | 6373 | res->reset_occurred = 0; |
Wayne Boyer | ab6c10b | 2011-03-31 09:56:10 -0700 | [diff] [blame] | 6374 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; |
Wendy Xiong | 0b1f8d4 | 2014-01-21 12:16:39 -0600 | [diff] [blame] | 6375 | } |
Gabriel Krisman Bertazi | 4f92d01 | 2015-11-03 16:26:07 -0200 | [diff] [blame] | 6376 | } |
| 6377 | |
| 6378 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { |
| 6379 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; |
| 6380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6381 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; |
Christoph Hellwig | 5066863 | 2014-10-30 14:30:06 +0100 | [diff] [blame] | 6382 | if (scsi_cmd->flags & SCMD_TAGGED) |
| 6383 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK; |
| 6384 | else |
| 6385 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6386 | } |
| 6387 | |
| 6388 | if (scsi_cmd->cmnd[0] >= 0xC0 && |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6389 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6390 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6391 | } |
Gabriel Krisman Bertazi | 3cb4fc1 | 2015-08-19 11:47:05 -0300 | [diff] [blame] | 6392 | if (res->raw_mode && ipr_is_af_dasd_device(res)) { |
Wen Xiong | f8ee25d | 2015-03-26 11:23:58 -0500 | [diff] [blame] | 6393 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6394 | |
Gabriel Krisman Bertazi | 3cb4fc1 | 2015-08-19 11:47:05 -0300 | [diff] [blame] | 6395 | if (scsi_cmd->underflow == 0) |
| 6396 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
| 6397 | } |
| 6398 | |
Dan Carpenter | d12f157 | 2012-07-30 11:18:22 +0300 | [diff] [blame] | 6399 | if (ioa_cfg->sis64) |
| 6400 | rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); |
| 6401 | else |
| 6402 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6403 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6404 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
| 6405 | if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6406 | list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6407 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6408 | if (!rc) |
| 6409 | scsi_dma_unmap(scsi_cmd); |
Brian King | a5fb407 | 2012-03-14 21:20:09 -0500 | [diff] [blame] | 6410 | return SCSI_MLQUEUE_HOST_BUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6411 | } |
| 6412 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6413 | if (unlikely(hrrq->ioa_is_dead)) { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6414 | list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6415 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6416 | scsi_dma_unmap(scsi_cmd); |
| 6417 | goto err_nodev; |
| 6418 | } |
| 6419 | |
| 6420 | ioarcb->res_handle = res->res_handle; |
| 6421 | if (res->needs_sync_complete) { |
| 6422 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; |
| 6423 | res->needs_sync_complete = 0; |
| 6424 | } |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6425 | list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6426 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); |
Brian King | a5fb407 | 2012-03-14 21:20:09 -0500 | [diff] [blame] | 6427 | ipr_send_command(ipr_cmd); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6428 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6429 | return 0; |
| 6430 | |
| 6431 | err_nodev: |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6432 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
Brian King | 00bfef2 | 2012-07-17 08:13:52 -0500 | [diff] [blame] | 6433 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
| 6434 | scsi_cmd->result = (DID_NO_CONNECT << 16); |
| 6435 | scsi_cmd->scsi_done(scsi_cmd); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6436 | spin_unlock_irqrestore(hrrq->lock, hrrq_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6437 | return 0; |
| 6438 | } |
| 6439 | |
| 6440 | /** |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6441 | * ipr_ioctl - IOCTL handler |
| 6442 | * @sdev: scsi device struct |
| 6443 | * @cmd: IOCTL cmd |
| 6444 | * @arg: IOCTL arg |
| 6445 | * |
| 6446 | * Return value: |
| 6447 | * 0 on success / other on failure |
| 6448 | **/ |
Adrian Bunk | bd705f2 | 2006-11-21 10:28:48 -0600 | [diff] [blame] | 6449 | static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6450 | { |
| 6451 | struct ipr_resource_entry *res; |
| 6452 | |
| 6453 | res = (struct ipr_resource_entry *)sdev->hostdata; |
Brian King | 0ce3a7e | 2008-07-11 13:37:50 -0500 | [diff] [blame] | 6454 | if (res && ipr_is_gata(res)) { |
| 6455 | if (cmd == HDIO_GET_IDENTITY) |
| 6456 | return -ENOTTY; |
Jeff Garzik | 94be9a5 | 2009-01-16 10:17:09 -0500 | [diff] [blame] | 6457 | return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); |
Brian King | 0ce3a7e | 2008-07-11 13:37:50 -0500 | [diff] [blame] | 6458 | } |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6459 | |
| 6460 | return -EINVAL; |
| 6461 | } |
| 6462 | |
| 6463 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6464 | * ipr_info - Get information about the card/driver |
| 6465 | * @scsi_host: scsi host struct |
| 6466 | * |
| 6467 | * Return value: |
| 6468 | * pointer to buffer with description string |
| 6469 | **/ |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 6470 | static const char *ipr_ioa_info(struct Scsi_Host *host) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6471 | { |
| 6472 | static char buffer[512]; |
| 6473 | struct ipr_ioa_cfg *ioa_cfg; |
| 6474 | unsigned long lock_flags = 0; |
| 6475 | |
| 6476 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; |
| 6477 | |
| 6478 | spin_lock_irqsave(host->host_lock, lock_flags); |
| 6479 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); |
| 6480 | spin_unlock_irqrestore(host->host_lock, lock_flags); |
| 6481 | |
| 6482 | return buffer; |
| 6483 | } |
| 6484 | |
| 6485 | static struct scsi_host_template driver_template = { |
| 6486 | .module = THIS_MODULE, |
| 6487 | .name = "IPR", |
| 6488 | .info = ipr_ioa_info, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6489 | .ioctl = ipr_ioctl, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6490 | .queuecommand = ipr_queuecommand, |
| 6491 | .eh_abort_handler = ipr_eh_abort, |
| 6492 | .eh_device_reset_handler = ipr_eh_dev_reset, |
| 6493 | .eh_host_reset_handler = ipr_eh_host_reset, |
| 6494 | .slave_alloc = ipr_slave_alloc, |
| 6495 | .slave_configure = ipr_slave_configure, |
| 6496 | .slave_destroy = ipr_slave_destroy, |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 6497 | .scan_finished = ipr_scan_finished, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6498 | .target_alloc = ipr_target_alloc, |
| 6499 | .target_destroy = ipr_target_destroy, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6500 | .change_queue_depth = ipr_change_queue_depth, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6501 | .bios_param = ipr_biosparam, |
| 6502 | .can_queue = IPR_MAX_COMMANDS, |
| 6503 | .this_id = -1, |
| 6504 | .sg_tablesize = IPR_MAX_SGLIST, |
| 6505 | .max_sectors = IPR_IOA_MAX_SECTORS, |
| 6506 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, |
| 6507 | .use_clustering = ENABLE_CLUSTERING, |
| 6508 | .shost_attrs = ipr_ioa_attrs, |
| 6509 | .sdev_attrs = ipr_dev_attrs, |
Martin K. Petersen | 54b2b50 | 2013-10-23 06:25:40 -0400 | [diff] [blame] | 6510 | .proc_name = IPR_NAME, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6511 | }; |
| 6512 | |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6513 | /** |
| 6514 | * ipr_ata_phy_reset - libata phy_reset handler |
| 6515 | * @ap: ata port to reset |
| 6516 | * |
| 6517 | **/ |
| 6518 | static void ipr_ata_phy_reset(struct ata_port *ap) |
| 6519 | { |
| 6520 | unsigned long flags; |
| 6521 | struct ipr_sata_port *sata_port = ap->private_data; |
| 6522 | struct ipr_resource_entry *res = sata_port->res; |
| 6523 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; |
| 6524 | int rc; |
| 6525 | |
| 6526 | ENTER; |
| 6527 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 6528 | while (ioa_cfg->in_reset_reload) { |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6529 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 6530 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 6531 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
| 6532 | } |
| 6533 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6534 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6535 | goto out_unlock; |
| 6536 | |
| 6537 | rc = ipr_device_reset(ioa_cfg, res); |
| 6538 | |
| 6539 | if (rc) { |
Tejun Heo | 3e4ec34 | 2010-05-10 21:41:30 +0200 | [diff] [blame] | 6540 | ap->link.device[0].class = ATA_DEV_NONE; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6541 | goto out_unlock; |
| 6542 | } |
| 6543 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 6544 | ap->link.device[0].class = res->ata_class; |
| 6545 | if (ap->link.device[0].class == ATA_DEV_UNKNOWN) |
Tejun Heo | 3e4ec34 | 2010-05-10 21:41:30 +0200 | [diff] [blame] | 6546 | ap->link.device[0].class = ATA_DEV_NONE; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6547 | |
| 6548 | out_unlock: |
| 6549 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 6550 | LEAVE; |
| 6551 | } |
| 6552 | |
| 6553 | /** |
| 6554 | * ipr_ata_post_internal - Cleanup after an internal command |
| 6555 | * @qc: ATA queued command |
| 6556 | * |
| 6557 | * Return value: |
| 6558 | * none |
| 6559 | **/ |
| 6560 | static void ipr_ata_post_internal(struct ata_queued_cmd *qc) |
| 6561 | { |
| 6562 | struct ipr_sata_port *sata_port = qc->ap->private_data; |
| 6563 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; |
| 6564 | struct ipr_cmnd *ipr_cmd; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6565 | struct ipr_hrr_queue *hrrq; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6566 | unsigned long flags; |
| 6567 | |
| 6568 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 6569 | while (ioa_cfg->in_reset_reload) { |
Brian King | 73d98ff | 2006-11-21 10:27:58 -0600 | [diff] [blame] | 6570 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 6571 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 6572 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
| 6573 | } |
| 6574 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6575 | for_each_hrrq(hrrq, ioa_cfg) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6576 | spin_lock(&hrrq->_lock); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6577 | list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { |
| 6578 | if (ipr_cmd->qc == qc) { |
| 6579 | ipr_device_reset(ioa_cfg, sata_port->res); |
| 6580 | break; |
| 6581 | } |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6582 | } |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6583 | spin_unlock(&hrrq->_lock); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6584 | } |
| 6585 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 6586 | } |
| 6587 | |
| 6588 | /** |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6589 | * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure |
| 6590 | * @regs: destination |
| 6591 | * @tf: source ATA taskfile |
| 6592 | * |
| 6593 | * Return value: |
| 6594 | * none |
| 6595 | **/ |
| 6596 | static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, |
| 6597 | struct ata_taskfile *tf) |
| 6598 | { |
| 6599 | regs->feature = tf->feature; |
| 6600 | regs->nsect = tf->nsect; |
| 6601 | regs->lbal = tf->lbal; |
| 6602 | regs->lbam = tf->lbam; |
| 6603 | regs->lbah = tf->lbah; |
| 6604 | regs->device = tf->device; |
| 6605 | regs->command = tf->command; |
| 6606 | regs->hob_feature = tf->hob_feature; |
| 6607 | regs->hob_nsect = tf->hob_nsect; |
| 6608 | regs->hob_lbal = tf->hob_lbal; |
| 6609 | regs->hob_lbam = tf->hob_lbam; |
| 6610 | regs->hob_lbah = tf->hob_lbah; |
| 6611 | regs->ctl = tf->ctl; |
| 6612 | } |
| 6613 | |
| 6614 | /** |
| 6615 | * ipr_sata_done - done function for SATA commands |
| 6616 | * @ipr_cmd: ipr command struct |
| 6617 | * |
| 6618 | * This function is invoked by the interrupt handler for |
| 6619 | * ops generated by the SCSI mid-layer to SATA devices |
| 6620 | * |
| 6621 | * Return value: |
| 6622 | * none |
| 6623 | **/ |
| 6624 | static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) |
| 6625 | { |
| 6626 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 6627 | struct ata_queued_cmd *qc = ipr_cmd->qc; |
| 6628 | struct ipr_sata_port *sata_port = qc->ap->private_data; |
| 6629 | struct ipr_resource_entry *res = sata_port->res; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6630 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6631 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6632 | spin_lock(&ipr_cmd->hrrq->_lock); |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6633 | if (ipr_cmd->ioa_cfg->sis64) |
| 6634 | memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, |
| 6635 | sizeof(struct ipr_ioasa_gata)); |
| 6636 | else |
| 6637 | memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, |
| 6638 | sizeof(struct ipr_ioasa_gata)); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6639 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
| 6640 | |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6641 | if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 6642 | scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6643 | |
| 6644 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6645 | qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6646 | else |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 6647 | qc->err_mask |= ac_err_mask(sata_port->ioasa.status); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6648 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6649 | spin_unlock(&ipr_cmd->hrrq->_lock); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6650 | ata_qc_complete(qc); |
| 6651 | } |
| 6652 | |
| 6653 | /** |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6654 | * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list |
| 6655 | * @ipr_cmd: ipr command struct |
| 6656 | * @qc: ATA queued command |
| 6657 | * |
| 6658 | **/ |
| 6659 | static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, |
| 6660 | struct ata_queued_cmd *qc) |
| 6661 | { |
| 6662 | u32 ioadl_flags = 0; |
| 6663 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
wenxiong@linux.vnet.ibm.com | 1ac7c26 | 2013-04-18 21:32:48 -0500 | [diff] [blame] | 6664 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6665 | struct ipr_ioadl64_desc *last_ioadl64 = NULL; |
| 6666 | int len = qc->nbytes; |
| 6667 | struct scatterlist *sg; |
| 6668 | unsigned int si; |
| 6669 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
| 6670 | |
| 6671 | if (len == 0) |
| 6672 | return; |
| 6673 | |
| 6674 | if (qc->dma_dir == DMA_TO_DEVICE) { |
| 6675 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
| 6676 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 6677 | } else if (qc->dma_dir == DMA_FROM_DEVICE) |
| 6678 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
| 6679 | |
| 6680 | ioarcb->data_transfer_length = cpu_to_be32(len); |
| 6681 | ioarcb->ioadl_len = |
| 6682 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); |
| 6683 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
wenxiong@linux.vnet.ibm.com | 1ac7c26 | 2013-04-18 21:32:48 -0500 | [diff] [blame] | 6684 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64)); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6685 | |
| 6686 | for_each_sg(qc->sg, sg, qc->n_elem, si) { |
| 6687 | ioadl64->flags = cpu_to_be32(ioadl_flags); |
| 6688 | ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); |
| 6689 | ioadl64->address = cpu_to_be64(sg_dma_address(sg)); |
| 6690 | |
| 6691 | last_ioadl64 = ioadl64; |
| 6692 | ioadl64++; |
| 6693 | } |
| 6694 | |
| 6695 | if (likely(last_ioadl64)) |
| 6696 | last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
| 6697 | } |
| 6698 | |
| 6699 | /** |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6700 | * ipr_build_ata_ioadl - Build an ATA scatter/gather list |
| 6701 | * @ipr_cmd: ipr command struct |
| 6702 | * @qc: ATA queued command |
| 6703 | * |
| 6704 | **/ |
| 6705 | static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, |
| 6706 | struct ata_queued_cmd *qc) |
| 6707 | { |
| 6708 | u32 ioadl_flags = 0; |
| 6709 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6710 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
Jeff Garzik | 3be6cbd | 2007-10-18 16:21:18 -0400 | [diff] [blame] | 6711 | struct ipr_ioadl_desc *last_ioadl = NULL; |
James Bottomley | dde2020 | 2008-02-19 11:36:56 +0100 | [diff] [blame] | 6712 | int len = qc->nbytes; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6713 | struct scatterlist *sg; |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 6714 | unsigned int si; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6715 | |
| 6716 | if (len == 0) |
| 6717 | return; |
| 6718 | |
| 6719 | if (qc->dma_dir == DMA_TO_DEVICE) { |
| 6720 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
| 6721 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6722 | ioarcb->data_transfer_length = cpu_to_be32(len); |
| 6723 | ioarcb->ioadl_len = |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6724 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
| 6725 | } else if (qc->dma_dir == DMA_FROM_DEVICE) { |
| 6726 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
| 6727 | ioarcb->read_data_transfer_length = cpu_to_be32(len); |
| 6728 | ioarcb->read_ioadl_len = |
| 6729 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
| 6730 | } |
| 6731 | |
Tejun Heo | ff2aeb1 | 2007-12-05 16:43:11 +0900 | [diff] [blame] | 6732 | for_each_sg(qc->sg, sg, qc->n_elem, si) { |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6733 | ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); |
| 6734 | ioadl->address = cpu_to_be32(sg_dma_address(sg)); |
Jeff Garzik | 3be6cbd | 2007-10-18 16:21:18 -0400 | [diff] [blame] | 6735 | |
| 6736 | last_ioadl = ioadl; |
| 6737 | ioadl++; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6738 | } |
Jeff Garzik | 3be6cbd | 2007-10-18 16:21:18 -0400 | [diff] [blame] | 6739 | |
| 6740 | if (likely(last_ioadl)) |
| 6741 | last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6742 | } |
| 6743 | |
| 6744 | /** |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6745 | * ipr_qc_defer - Get a free ipr_cmd |
| 6746 | * @qc: queued command |
| 6747 | * |
| 6748 | * Return value: |
| 6749 | * 0 if success |
| 6750 | **/ |
| 6751 | static int ipr_qc_defer(struct ata_queued_cmd *qc) |
| 6752 | { |
| 6753 | struct ata_port *ap = qc->ap; |
| 6754 | struct ipr_sata_port *sata_port = ap->private_data; |
| 6755 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; |
| 6756 | struct ipr_cmnd *ipr_cmd; |
| 6757 | struct ipr_hrr_queue *hrrq; |
| 6758 | int hrrq_id; |
| 6759 | |
| 6760 | hrrq_id = ipr_get_hrrq_index(ioa_cfg); |
| 6761 | hrrq = &ioa_cfg->hrrq[hrrq_id]; |
| 6762 | |
| 6763 | qc->lldd_task = NULL; |
| 6764 | spin_lock(&hrrq->_lock); |
| 6765 | if (unlikely(hrrq->ioa_is_dead)) { |
| 6766 | spin_unlock(&hrrq->_lock); |
| 6767 | return 0; |
| 6768 | } |
| 6769 | |
| 6770 | if (unlikely(!hrrq->allow_cmds)) { |
| 6771 | spin_unlock(&hrrq->_lock); |
| 6772 | return ATA_DEFER_LINK; |
| 6773 | } |
| 6774 | |
| 6775 | ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); |
| 6776 | if (ipr_cmd == NULL) { |
| 6777 | spin_unlock(&hrrq->_lock); |
| 6778 | return ATA_DEFER_LINK; |
| 6779 | } |
| 6780 | |
| 6781 | qc->lldd_task = ipr_cmd; |
| 6782 | spin_unlock(&hrrq->_lock); |
| 6783 | return 0; |
| 6784 | } |
| 6785 | |
| 6786 | /** |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6787 | * ipr_qc_issue - Issue a SATA qc to a device |
| 6788 | * @qc: queued command |
| 6789 | * |
| 6790 | * Return value: |
| 6791 | * 0 if success |
| 6792 | **/ |
| 6793 | static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) |
| 6794 | { |
| 6795 | struct ata_port *ap = qc->ap; |
| 6796 | struct ipr_sata_port *sata_port = ap->private_data; |
| 6797 | struct ipr_resource_entry *res = sata_port->res; |
| 6798 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; |
| 6799 | struct ipr_cmnd *ipr_cmd; |
| 6800 | struct ipr_ioarcb *ioarcb; |
| 6801 | struct ipr_ioarcb_ata_regs *regs; |
| 6802 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6803 | if (qc->lldd_task == NULL) |
| 6804 | ipr_qc_defer(qc); |
| 6805 | |
| 6806 | ipr_cmd = qc->lldd_task; |
| 6807 | if (ipr_cmd == NULL) |
Brian King | 0feeed8 | 2007-03-29 12:43:43 -0500 | [diff] [blame] | 6808 | return AC_ERR_SYSTEM; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6809 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6810 | qc->lldd_task = NULL; |
| 6811 | spin_lock(&ipr_cmd->hrrq->_lock); |
| 6812 | if (unlikely(!ipr_cmd->hrrq->allow_cmds || |
| 6813 | ipr_cmd->hrrq->ioa_is_dead)) { |
| 6814 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
| 6815 | spin_unlock(&ipr_cmd->hrrq->_lock); |
| 6816 | return AC_ERR_SYSTEM; |
| 6817 | } |
| 6818 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 6819 | ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6820 | ioarcb = &ipr_cmd->ioarcb; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6821 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6822 | if (ioa_cfg->sis64) { |
| 6823 | regs = &ipr_cmd->i.ata_ioadl.regs; |
| 6824 | ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); |
| 6825 | } else |
| 6826 | regs = &ioarcb->u.add_data.u.regs; |
| 6827 | |
| 6828 | memset(regs, 0, sizeof(*regs)); |
| 6829 | ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6830 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6831 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6832 | ipr_cmd->qc = qc; |
| 6833 | ipr_cmd->done = ipr_sata_done; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 6834 | ipr_cmd->ioarcb.res_handle = res->res_handle; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6835 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; |
| 6836 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; |
| 6837 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
James Bottomley | dde2020 | 2008-02-19 11:36:56 +0100 | [diff] [blame] | 6838 | ipr_cmd->dma_use_sg = qc->n_elem; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6839 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6840 | if (ioa_cfg->sis64) |
| 6841 | ipr_build_ata_ioadl64(ipr_cmd, qc); |
| 6842 | else |
| 6843 | ipr_build_ata_ioadl(ipr_cmd, qc); |
| 6844 | |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6845 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; |
| 6846 | ipr_copy_sata_tf(regs, &qc->tf); |
| 6847 | memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 6848 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6849 | |
| 6850 | switch (qc->tf.protocol) { |
| 6851 | case ATA_PROT_NODATA: |
| 6852 | case ATA_PROT_PIO: |
| 6853 | break; |
| 6854 | |
| 6855 | case ATA_PROT_DMA: |
| 6856 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; |
| 6857 | break; |
| 6858 | |
Tejun Heo | 0dc3688 | 2007-12-18 16:34:43 -0500 | [diff] [blame] | 6859 | case ATAPI_PROT_PIO: |
| 6860 | case ATAPI_PROT_NODATA: |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6861 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; |
| 6862 | break; |
| 6863 | |
Tejun Heo | 0dc3688 | 2007-12-18 16:34:43 -0500 | [diff] [blame] | 6864 | case ATAPI_PROT_DMA: |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6865 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; |
| 6866 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; |
| 6867 | break; |
| 6868 | |
| 6869 | default: |
| 6870 | WARN_ON(1); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6871 | spin_unlock(&ipr_cmd->hrrq->_lock); |
Brian King | 0feeed8 | 2007-03-29 12:43:43 -0500 | [diff] [blame] | 6872 | return AC_ERR_INVALID; |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6873 | } |
| 6874 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6875 | ipr_send_command(ipr_cmd); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6876 | spin_unlock(&ipr_cmd->hrrq->_lock); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 6877 | |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6878 | return 0; |
| 6879 | } |
| 6880 | |
| 6881 | /** |
Tejun Heo | 4c9bf4e | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 6882 | * ipr_qc_fill_rtf - Read result TF |
| 6883 | * @qc: ATA queued command |
| 6884 | * |
| 6885 | * Return value: |
| 6886 | * true |
| 6887 | **/ |
| 6888 | static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) |
| 6889 | { |
| 6890 | struct ipr_sata_port *sata_port = qc->ap->private_data; |
| 6891 | struct ipr_ioasa_gata *g = &sata_port->ioasa; |
| 6892 | struct ata_taskfile *tf = &qc->result_tf; |
| 6893 | |
| 6894 | tf->feature = g->error; |
| 6895 | tf->nsect = g->nsect; |
| 6896 | tf->lbal = g->lbal; |
| 6897 | tf->lbam = g->lbam; |
| 6898 | tf->lbah = g->lbah; |
| 6899 | tf->device = g->device; |
| 6900 | tf->command = g->status; |
| 6901 | tf->hob_nsect = g->hob_nsect; |
| 6902 | tf->hob_lbal = g->hob_lbal; |
| 6903 | tf->hob_lbam = g->hob_lbam; |
| 6904 | tf->hob_lbah = g->hob_lbah; |
Tejun Heo | 4c9bf4e | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 6905 | |
| 6906 | return true; |
| 6907 | } |
| 6908 | |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6909 | static struct ata_port_operations ipr_sata_ops = { |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6910 | .phy_reset = ipr_ata_phy_reset, |
Tejun Heo | a1efdab | 2008-03-25 12:22:50 +0900 | [diff] [blame] | 6911 | .hardreset = ipr_sata_reset, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6912 | .post_internal_cmd = ipr_ata_post_internal, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6913 | .qc_prep = ata_noop_qc_prep, |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 6914 | .qc_defer = ipr_qc_defer, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6915 | .qc_issue = ipr_qc_issue, |
Tejun Heo | 4c9bf4e | 2008-04-07 22:47:20 +0900 | [diff] [blame] | 6916 | .qc_fill_rtf = ipr_qc_fill_rtf, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6917 | .port_start = ata_sas_port_start, |
| 6918 | .port_stop = ata_sas_port_stop |
| 6919 | }; |
| 6920 | |
| 6921 | static struct ata_port_info sata_port_info = { |
Shaohua Li | 5067c04 | 2015-03-12 10:32:18 -0700 | [diff] [blame] | 6922 | .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA | |
| 6923 | ATA_FLAG_SAS_HOST, |
Sergei Shtylyov | 0f2e033 | 2011-01-21 20:32:01 +0300 | [diff] [blame] | 6924 | .pio_mask = ATA_PIO4_ONLY, |
| 6925 | .mwdma_mask = ATA_MWDMA2, |
| 6926 | .udma_mask = ATA_UDMA6, |
Brian King | 35a3969 | 2006-09-25 12:39:20 -0500 | [diff] [blame] | 6927 | .port_ops = &ipr_sata_ops |
| 6928 | }; |
| 6929 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6930 | #ifdef CONFIG_PPC_PSERIES |
| 6931 | static const u16 ipr_blocked_processors[] = { |
Michael Ellerman | d3dbeef | 2012-08-19 21:44:01 +0000 | [diff] [blame] | 6932 | PVR_NORTHSTAR, |
| 6933 | PVR_PULSAR, |
| 6934 | PVR_POWER4, |
| 6935 | PVR_ICESTAR, |
| 6936 | PVR_SSTAR, |
| 6937 | PVR_POWER4p, |
| 6938 | PVR_630, |
| 6939 | PVR_630p |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6940 | }; |
| 6941 | |
| 6942 | /** |
| 6943 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware |
| 6944 | * @ioa_cfg: ioa cfg struct |
| 6945 | * |
| 6946 | * Adapters that use Gemstone revision < 3.1 do not work reliably on |
| 6947 | * certain pSeries hardware. This function determines if the given |
| 6948 | * adapter is in one of these confgurations or not. |
| 6949 | * |
| 6950 | * Return value: |
| 6951 | * 1 if adapter is not supported / 0 if adapter is supported |
| 6952 | **/ |
| 6953 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) |
| 6954 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6955 | int i; |
| 6956 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 6957 | if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 6958 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) { |
Michael Ellerman | d3dbeef | 2012-08-19 21:44:01 +0000 | [diff] [blame] | 6959 | if (pvr_version_is(ipr_blocked_processors[i])) |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 6960 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6961 | } |
| 6962 | } |
| 6963 | return 0; |
| 6964 | } |
| 6965 | #else |
| 6966 | #define ipr_invalid_adapter(ioa_cfg) 0 |
| 6967 | #endif |
| 6968 | |
| 6969 | /** |
| 6970 | * ipr_ioa_bringdown_done - IOA bring down completion. |
| 6971 | * @ipr_cmd: ipr command struct |
| 6972 | * |
| 6973 | * This function processes the completion of an adapter bring down. |
| 6974 | * It wakes any reset sleepers. |
| 6975 | * |
| 6976 | * Return value: |
| 6977 | * IPR_RC_JOB_RETURN |
| 6978 | **/ |
| 6979 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) |
| 6980 | { |
| 6981 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
wenxiong@linux.vnet.ibm.com | 96b04db | 2013-04-17 09:34:06 -0500 | [diff] [blame] | 6982 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6983 | |
| 6984 | ENTER; |
Brian King | bfae782 | 2013-01-30 23:45:08 -0600 | [diff] [blame] | 6985 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
| 6986 | ipr_trace; |
| 6987 | spin_unlock_irq(ioa_cfg->host->host_lock); |
| 6988 | scsi_unblock_requests(ioa_cfg->host); |
| 6989 | spin_lock_irq(ioa_cfg->host->host_lock); |
| 6990 | } |
| 6991 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6992 | ioa_cfg->in_reset_reload = 0; |
| 6993 | ioa_cfg->reset_retries = 0; |
wenxiong@linux.vnet.ibm.com | 96b04db | 2013-04-17 09:34:06 -0500 | [diff] [blame] | 6994 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 6995 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 6996 | ioa_cfg->hrrq[i].ioa_is_dead = 1; |
| 6997 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 6998 | } |
| 6999 | wmb(); |
| 7000 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7001 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7002 | wake_up_all(&ioa_cfg->reset_wait_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7003 | LEAVE; |
| 7004 | |
| 7005 | return IPR_RC_JOB_RETURN; |
| 7006 | } |
| 7007 | |
| 7008 | /** |
| 7009 | * ipr_ioa_reset_done - IOA reset completion. |
| 7010 | * @ipr_cmd: ipr command struct |
| 7011 | * |
| 7012 | * This function processes the completion of an adapter reset. |
| 7013 | * It schedules any necessary mid-layer add/removes and |
| 7014 | * wakes any reset sleepers. |
| 7015 | * |
| 7016 | * Return value: |
| 7017 | * IPR_RC_JOB_RETURN |
| 7018 | **/ |
| 7019 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) |
| 7020 | { |
| 7021 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7022 | struct ipr_resource_entry *res; |
| 7023 | struct ipr_hostrcb *hostrcb, *temp; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 7024 | int i = 0, j; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7025 | |
| 7026 | ENTER; |
| 7027 | ioa_cfg->in_reset_reload = 0; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 7028 | for (j = 0; j < ioa_cfg->hrrq_num; j++) { |
| 7029 | spin_lock(&ioa_cfg->hrrq[j]._lock); |
| 7030 | ioa_cfg->hrrq[j].allow_cmds = 1; |
| 7031 | spin_unlock(&ioa_cfg->hrrq[j]._lock); |
| 7032 | } |
| 7033 | wmb(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7034 | ioa_cfg->reset_cmd = NULL; |
brking@us.ibm.com | 3d1d0da | 2005-11-01 17:01:54 -0600 | [diff] [blame] | 7035 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7036 | |
| 7037 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 7038 | if (res->add_to_ml || res->del_from_ml) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7039 | ipr_trace; |
| 7040 | break; |
| 7041 | } |
| 7042 | } |
| 7043 | schedule_work(&ioa_cfg->work_q); |
| 7044 | |
| 7045 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { |
| 7046 | list_del(&hostrcb->queue); |
| 7047 | if (i++ < IPR_NUM_LOG_HCAMS) |
| 7048 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); |
| 7049 | else |
| 7050 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
| 7051 | } |
| 7052 | |
Brian King | 6bb0417 | 2007-04-26 16:00:08 -0500 | [diff] [blame] | 7053 | scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7054 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); |
| 7055 | |
| 7056 | ioa_cfg->reset_retries = 0; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7057 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7058 | wake_up_all(&ioa_cfg->reset_wait_q); |
| 7059 | |
Mark Nelson | 3023785 | 2008-12-10 12:23:20 +1100 | [diff] [blame] | 7060 | spin_unlock(ioa_cfg->host->host_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7061 | scsi_unblock_requests(ioa_cfg->host); |
Mark Nelson | 3023785 | 2008-12-10 12:23:20 +1100 | [diff] [blame] | 7062 | spin_lock(ioa_cfg->host->host_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7063 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 7064 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7065 | scsi_block_requests(ioa_cfg->host); |
| 7066 | |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 7067 | schedule_work(&ioa_cfg->work_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7068 | LEAVE; |
| 7069 | return IPR_RC_JOB_RETURN; |
| 7070 | } |
| 7071 | |
| 7072 | /** |
| 7073 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer |
| 7074 | * @supported_dev: supported device struct |
| 7075 | * @vpids: vendor product id struct |
| 7076 | * |
| 7077 | * Return value: |
| 7078 | * none |
| 7079 | **/ |
| 7080 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, |
| 7081 | struct ipr_std_inq_vpids *vpids) |
| 7082 | { |
| 7083 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); |
| 7084 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); |
| 7085 | supported_dev->num_records = 1; |
| 7086 | supported_dev->data_length = |
| 7087 | cpu_to_be16(sizeof(struct ipr_supported_device)); |
| 7088 | supported_dev->reserved = 0; |
| 7089 | } |
| 7090 | |
| 7091 | /** |
| 7092 | * ipr_set_supported_devs - Send Set Supported Devices for a device |
| 7093 | * @ipr_cmd: ipr command struct |
| 7094 | * |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7095 | * This function sends a Set Supported Devices to the adapter |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7096 | * |
| 7097 | * Return value: |
| 7098 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 7099 | **/ |
| 7100 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) |
| 7101 | { |
| 7102 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7103 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7104 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 7105 | struct ipr_resource_entry *res = ipr_cmd->u.res; |
| 7106 | |
| 7107 | ipr_cmd->job_step = ipr_ioa_reset_done; |
| 7108 | |
| 7109 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { |
Brian King | e4fbf44 | 2006-03-29 09:37:22 -0600 | [diff] [blame] | 7110 | if (!ipr_is_scsi_disk(res)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7111 | continue; |
| 7112 | |
| 7113 | ipr_cmd->u.res = res; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7114 | ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7115 | |
| 7116 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 7117 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 7118 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 7119 | |
| 7120 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7121 | ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7122 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; |
| 7123 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; |
| 7124 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7125 | ipr_init_ioadl(ipr_cmd, |
| 7126 | ioa_cfg->vpd_cbs_dma + |
| 7127 | offsetof(struct ipr_misc_cbs, supp_dev), |
| 7128 | sizeof(struct ipr_supported_device), |
| 7129 | IPR_IOADL_FLAGS_WRITE_LAST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7130 | |
| 7131 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, |
| 7132 | IPR_SET_SUP_DEVICE_TIMEOUT); |
| 7133 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7134 | if (!ioa_cfg->sis64) |
| 7135 | ipr_cmd->job_step = ipr_set_supported_devs; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7136 | LEAVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7137 | return IPR_RC_JOB_RETURN; |
| 7138 | } |
| 7139 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7140 | LEAVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7141 | return IPR_RC_JOB_CONTINUE; |
| 7142 | } |
| 7143 | |
| 7144 | /** |
| 7145 | * ipr_get_mode_page - Locate specified mode page |
| 7146 | * @mode_pages: mode page buffer |
| 7147 | * @page_code: page code to find |
| 7148 | * @len: minimum required length for mode page |
| 7149 | * |
| 7150 | * Return value: |
| 7151 | * pointer to mode page / NULL on failure |
| 7152 | **/ |
| 7153 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, |
| 7154 | u32 page_code, u32 len) |
| 7155 | { |
| 7156 | struct ipr_mode_page_hdr *mode_hdr; |
| 7157 | u32 page_length; |
| 7158 | u32 length; |
| 7159 | |
| 7160 | if (!mode_pages || (mode_pages->hdr.length == 0)) |
| 7161 | return NULL; |
| 7162 | |
| 7163 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; |
| 7164 | mode_hdr = (struct ipr_mode_page_hdr *) |
| 7165 | (mode_pages->data + mode_pages->hdr.block_desc_len); |
| 7166 | |
| 7167 | while (length) { |
| 7168 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { |
| 7169 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) |
| 7170 | return mode_hdr; |
| 7171 | break; |
| 7172 | } else { |
| 7173 | page_length = (sizeof(struct ipr_mode_page_hdr) + |
| 7174 | mode_hdr->page_length); |
| 7175 | length -= page_length; |
| 7176 | mode_hdr = (struct ipr_mode_page_hdr *) |
| 7177 | ((unsigned long)mode_hdr + page_length); |
| 7178 | } |
| 7179 | } |
| 7180 | return NULL; |
| 7181 | } |
| 7182 | |
| 7183 | /** |
| 7184 | * ipr_check_term_power - Check for term power errors |
| 7185 | * @ioa_cfg: ioa config struct |
| 7186 | * @mode_pages: IOAFP mode pages buffer |
| 7187 | * |
| 7188 | * Check the IOAFP's mode page 28 for term power errors |
| 7189 | * |
| 7190 | * Return value: |
| 7191 | * nothing |
| 7192 | **/ |
| 7193 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, |
| 7194 | struct ipr_mode_pages *mode_pages) |
| 7195 | { |
| 7196 | int i; |
| 7197 | int entry_length; |
| 7198 | struct ipr_dev_bus_entry *bus; |
| 7199 | struct ipr_mode_page28 *mode_page; |
| 7200 | |
| 7201 | mode_page = ipr_get_mode_page(mode_pages, 0x28, |
| 7202 | sizeof(struct ipr_mode_page28)); |
| 7203 | |
| 7204 | entry_length = mode_page->entry_length; |
| 7205 | |
| 7206 | bus = mode_page->bus; |
| 7207 | |
| 7208 | for (i = 0; i < mode_page->num_entries; i++) { |
| 7209 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { |
| 7210 | dev_err(&ioa_cfg->pdev->dev, |
| 7211 | "Term power is absent on scsi bus %d\n", |
| 7212 | bus->res_addr.bus); |
| 7213 | } |
| 7214 | |
| 7215 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); |
| 7216 | } |
| 7217 | } |
| 7218 | |
| 7219 | /** |
| 7220 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table |
| 7221 | * @ioa_cfg: ioa config struct |
| 7222 | * |
| 7223 | * Looks through the config table checking for SES devices. If |
| 7224 | * the SES device is in the SES table indicating a maximum SCSI |
| 7225 | * bus speed, the speed is limited for the bus. |
| 7226 | * |
| 7227 | * Return value: |
| 7228 | * none |
| 7229 | **/ |
| 7230 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) |
| 7231 | { |
| 7232 | u32 max_xfer_rate; |
| 7233 | int i; |
| 7234 | |
| 7235 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { |
| 7236 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, |
| 7237 | ioa_cfg->bus_attr[i].bus_width); |
| 7238 | |
| 7239 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) |
| 7240 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; |
| 7241 | } |
| 7242 | } |
| 7243 | |
| 7244 | /** |
| 7245 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 |
| 7246 | * @ioa_cfg: ioa config struct |
| 7247 | * @mode_pages: mode page 28 buffer |
| 7248 | * |
| 7249 | * Updates mode page 28 based on driver configuration |
| 7250 | * |
| 7251 | * Return value: |
| 7252 | * none |
| 7253 | **/ |
| 7254 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 7255 | struct ipr_mode_pages *mode_pages) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7256 | { |
| 7257 | int i, entry_length; |
| 7258 | struct ipr_dev_bus_entry *bus; |
| 7259 | struct ipr_bus_attributes *bus_attr; |
| 7260 | struct ipr_mode_page28 *mode_page; |
| 7261 | |
| 7262 | mode_page = ipr_get_mode_page(mode_pages, 0x28, |
| 7263 | sizeof(struct ipr_mode_page28)); |
| 7264 | |
| 7265 | entry_length = mode_page->entry_length; |
| 7266 | |
| 7267 | /* Loop for each device bus entry */ |
| 7268 | for (i = 0, bus = mode_page->bus; |
| 7269 | i < mode_page->num_entries; |
| 7270 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { |
| 7271 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { |
| 7272 | dev_err(&ioa_cfg->pdev->dev, |
| 7273 | "Invalid resource address reported: 0x%08X\n", |
| 7274 | IPR_GET_PHYS_LOC(bus->res_addr)); |
| 7275 | continue; |
| 7276 | } |
| 7277 | |
| 7278 | bus_attr = &ioa_cfg->bus_attr[i]; |
| 7279 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; |
| 7280 | bus->bus_width = bus_attr->bus_width; |
| 7281 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); |
| 7282 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; |
| 7283 | if (bus_attr->qas_enabled) |
| 7284 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; |
| 7285 | else |
| 7286 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; |
| 7287 | } |
| 7288 | } |
| 7289 | |
| 7290 | /** |
| 7291 | * ipr_build_mode_select - Build a mode select command |
| 7292 | * @ipr_cmd: ipr command struct |
| 7293 | * @res_handle: resource handle to send command to |
| 7294 | * @parm: Byte 2 of Mode Sense command |
| 7295 | * @dma_addr: DMA buffer address |
| 7296 | * @xfer_len: data transfer length |
| 7297 | * |
| 7298 | * Return value: |
| 7299 | * none |
| 7300 | **/ |
| 7301 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7302 | __be32 res_handle, u8 parm, |
| 7303 | dma_addr_t dma_addr, u8 xfer_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7304 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7305 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 7306 | |
| 7307 | ioarcb->res_handle = res_handle; |
| 7308 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
| 7309 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
| 7310 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; |
| 7311 | ioarcb->cmd_pkt.cdb[1] = parm; |
| 7312 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
| 7313 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7314 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7315 | } |
| 7316 | |
| 7317 | /** |
| 7318 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA |
| 7319 | * @ipr_cmd: ipr command struct |
| 7320 | * |
| 7321 | * This function sets up the SCSI bus attributes and sends |
| 7322 | * a Mode Select for Page 28 to activate them. |
| 7323 | * |
| 7324 | * Return value: |
| 7325 | * IPR_RC_JOB_RETURN |
| 7326 | **/ |
| 7327 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) |
| 7328 | { |
| 7329 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7330 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; |
| 7331 | int length; |
| 7332 | |
| 7333 | ENTER; |
Brian King | 4733804 | 2006-02-08 20:57:42 -0600 | [diff] [blame] | 7334 | ipr_scsi_bus_speed_limit(ioa_cfg); |
| 7335 | ipr_check_term_power(ioa_cfg, mode_pages); |
| 7336 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); |
| 7337 | length = mode_pages->hdr.length + 1; |
| 7338 | mode_pages->hdr.length = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7339 | |
| 7340 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, |
| 7341 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), |
| 7342 | length); |
| 7343 | |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 7344 | ipr_cmd->job_step = ipr_set_supported_devs; |
| 7345 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, |
| 7346 | struct ipr_resource_entry, queue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7347 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 7348 | |
| 7349 | LEAVE; |
| 7350 | return IPR_RC_JOB_RETURN; |
| 7351 | } |
| 7352 | |
| 7353 | /** |
| 7354 | * ipr_build_mode_sense - Builds a mode sense command |
| 7355 | * @ipr_cmd: ipr command struct |
| 7356 | * @res: resource entry struct |
| 7357 | * @parm: Byte 2 of mode sense command |
| 7358 | * @dma_addr: DMA address of mode sense buffer |
| 7359 | * @xfer_len: Size of DMA buffer |
| 7360 | * |
| 7361 | * Return value: |
| 7362 | * none |
| 7363 | **/ |
| 7364 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, |
| 7365 | __be32 res_handle, |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7366 | u8 parm, dma_addr_t dma_addr, u8 xfer_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7367 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7368 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 7369 | |
| 7370 | ioarcb->res_handle = res_handle; |
| 7371 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; |
| 7372 | ioarcb->cmd_pkt.cdb[2] = parm; |
| 7373 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
| 7374 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
| 7375 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7376 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7377 | } |
| 7378 | |
| 7379 | /** |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 7380 | * ipr_reset_cmd_failed - Handle failure of IOA reset command |
| 7381 | * @ipr_cmd: ipr command struct |
| 7382 | * |
| 7383 | * This function handles the failure of an IOA bringup command. |
| 7384 | * |
| 7385 | * Return value: |
| 7386 | * IPR_RC_JOB_RETURN |
| 7387 | **/ |
| 7388 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) |
| 7389 | { |
| 7390 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 7391 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 7392 | |
| 7393 | dev_err(&ioa_cfg->pdev->dev, |
| 7394 | "0x%02X failed with IOASC: 0x%08X\n", |
| 7395 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); |
| 7396 | |
| 7397 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7398 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 7399 | return IPR_RC_JOB_RETURN; |
| 7400 | } |
| 7401 | |
| 7402 | /** |
| 7403 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense |
| 7404 | * @ipr_cmd: ipr command struct |
| 7405 | * |
| 7406 | * This function handles the failure of a Mode Sense to the IOAFP. |
| 7407 | * Some adapters do not handle all mode pages. |
| 7408 | * |
| 7409 | * Return value: |
| 7410 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 7411 | **/ |
| 7412 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) |
| 7413 | { |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 7414 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 7415 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 7416 | |
| 7417 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 7418 | ipr_cmd->job_step = ipr_set_supported_devs; |
| 7419 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, |
| 7420 | struct ipr_resource_entry, queue); |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 7421 | return IPR_RC_JOB_CONTINUE; |
| 7422 | } |
| 7423 | |
| 7424 | return ipr_reset_cmd_failed(ipr_cmd); |
| 7425 | } |
| 7426 | |
| 7427 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7428 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA |
| 7429 | * @ipr_cmd: ipr command struct |
| 7430 | * |
| 7431 | * This function send a Page 28 mode sense to the IOA to |
| 7432 | * retrieve SCSI bus attributes. |
| 7433 | * |
| 7434 | * Return value: |
| 7435 | * IPR_RC_JOB_RETURN |
| 7436 | **/ |
| 7437 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) |
| 7438 | { |
| 7439 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7440 | |
| 7441 | ENTER; |
| 7442 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), |
| 7443 | 0x28, ioa_cfg->vpd_cbs_dma + |
| 7444 | offsetof(struct ipr_misc_cbs, mode_pages), |
| 7445 | sizeof(struct ipr_mode_pages)); |
| 7446 | |
| 7447 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 7448 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7449 | |
| 7450 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 7451 | |
| 7452 | LEAVE; |
| 7453 | return IPR_RC_JOB_RETURN; |
| 7454 | } |
| 7455 | |
| 7456 | /** |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 7457 | * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA |
| 7458 | * @ipr_cmd: ipr command struct |
| 7459 | * |
| 7460 | * This function enables dual IOA RAID support if possible. |
| 7461 | * |
| 7462 | * Return value: |
| 7463 | * IPR_RC_JOB_RETURN |
| 7464 | **/ |
| 7465 | static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) |
| 7466 | { |
| 7467 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7468 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; |
| 7469 | struct ipr_mode_page24 *mode_page; |
| 7470 | int length; |
| 7471 | |
| 7472 | ENTER; |
| 7473 | mode_page = ipr_get_mode_page(mode_pages, 0x24, |
| 7474 | sizeof(struct ipr_mode_page24)); |
| 7475 | |
| 7476 | if (mode_page) |
| 7477 | mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; |
| 7478 | |
| 7479 | length = mode_pages->hdr.length + 1; |
| 7480 | mode_pages->hdr.length = 0; |
| 7481 | |
| 7482 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, |
| 7483 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), |
| 7484 | length); |
| 7485 | |
| 7486 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
| 7487 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 7488 | |
| 7489 | LEAVE; |
| 7490 | return IPR_RC_JOB_RETURN; |
| 7491 | } |
| 7492 | |
| 7493 | /** |
| 7494 | * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense |
| 7495 | * @ipr_cmd: ipr command struct |
| 7496 | * |
| 7497 | * This function handles the failure of a Mode Sense to the IOAFP. |
| 7498 | * Some adapters do not handle all mode pages. |
| 7499 | * |
| 7500 | * Return value: |
| 7501 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 7502 | **/ |
| 7503 | static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) |
| 7504 | { |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 7505 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 7506 | |
| 7507 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { |
| 7508 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
| 7509 | return IPR_RC_JOB_CONTINUE; |
| 7510 | } |
| 7511 | |
| 7512 | return ipr_reset_cmd_failed(ipr_cmd); |
| 7513 | } |
| 7514 | |
| 7515 | /** |
| 7516 | * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA |
| 7517 | * @ipr_cmd: ipr command struct |
| 7518 | * |
| 7519 | * This function send a mode sense to the IOA to retrieve |
| 7520 | * the IOA Advanced Function Control mode page. |
| 7521 | * |
| 7522 | * Return value: |
| 7523 | * IPR_RC_JOB_RETURN |
| 7524 | **/ |
| 7525 | static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) |
| 7526 | { |
| 7527 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7528 | |
| 7529 | ENTER; |
| 7530 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), |
| 7531 | 0x24, ioa_cfg->vpd_cbs_dma + |
| 7532 | offsetof(struct ipr_misc_cbs, mode_pages), |
| 7533 | sizeof(struct ipr_mode_pages)); |
| 7534 | |
| 7535 | ipr_cmd->job_step = ipr_ioafp_mode_select_page24; |
| 7536 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; |
| 7537 | |
| 7538 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 7539 | |
| 7540 | LEAVE; |
| 7541 | return IPR_RC_JOB_RETURN; |
| 7542 | } |
| 7543 | |
| 7544 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7545 | * ipr_init_res_table - Initialize the resource table |
| 7546 | * @ipr_cmd: ipr command struct |
| 7547 | * |
| 7548 | * This function looks through the existing resource table, comparing |
| 7549 | * it with the config table. This function will take care of old/new |
| 7550 | * devices and schedule adding/removing them from the mid-layer |
| 7551 | * as appropriate. |
| 7552 | * |
| 7553 | * Return value: |
| 7554 | * IPR_RC_JOB_CONTINUE |
| 7555 | **/ |
| 7556 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) |
| 7557 | { |
| 7558 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7559 | struct ipr_resource_entry *res, *temp; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7560 | struct ipr_config_table_entry_wrapper cfgtew; |
| 7561 | int entries, found, flag, i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7562 | LIST_HEAD(old_res); |
| 7563 | |
| 7564 | ENTER; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7565 | if (ioa_cfg->sis64) |
| 7566 | flag = ioa_cfg->u.cfg_table64->hdr64.flags; |
| 7567 | else |
| 7568 | flag = ioa_cfg->u.cfg_table->hdr.flags; |
| 7569 | |
| 7570 | if (flag & IPR_UCODE_DOWNLOAD_REQ) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7571 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); |
| 7572 | |
| 7573 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) |
| 7574 | list_move_tail(&res->queue, &old_res); |
| 7575 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7576 | if (ioa_cfg->sis64) |
Wayne Boyer | 438b033 | 2010-05-10 09:13:00 -0700 | [diff] [blame] | 7577 | entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7578 | else |
| 7579 | entries = ioa_cfg->u.cfg_table->hdr.num_entries; |
| 7580 | |
| 7581 | for (i = 0; i < entries; i++) { |
| 7582 | if (ioa_cfg->sis64) |
| 7583 | cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; |
| 7584 | else |
| 7585 | cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7586 | found = 0; |
| 7587 | |
| 7588 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7589 | if (ipr_is_same_device(res, &cfgtew)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7590 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
| 7591 | found = 1; |
| 7592 | break; |
| 7593 | } |
| 7594 | } |
| 7595 | |
| 7596 | if (!found) { |
| 7597 | if (list_empty(&ioa_cfg->free_res_q)) { |
| 7598 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); |
| 7599 | break; |
| 7600 | } |
| 7601 | |
| 7602 | found = 1; |
| 7603 | res = list_entry(ioa_cfg->free_res_q.next, |
| 7604 | struct ipr_resource_entry, queue); |
| 7605 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7606 | ipr_init_res_entry(res, &cfgtew); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7607 | res->add_to_ml = 1; |
Wayne Boyer | 5611559 | 2010-06-10 14:46:34 -0700 | [diff] [blame] | 7608 | } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) |
| 7609 | res->sdev->allow_restart = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7610 | |
| 7611 | if (found) |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7612 | ipr_update_res_entry(res, &cfgtew); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7613 | } |
| 7614 | |
| 7615 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
| 7616 | if (res->sdev) { |
| 7617 | res->del_from_ml = 1; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7618 | res->res_handle = IPR_INVALID_RES_HANDLE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7619 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7620 | } |
| 7621 | } |
| 7622 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7623 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
| 7624 | ipr_clear_res_target(res); |
| 7625 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
| 7626 | } |
| 7627 | |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 7628 | if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
| 7629 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; |
| 7630 | else |
| 7631 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7632 | |
| 7633 | LEAVE; |
| 7634 | return IPR_RC_JOB_CONTINUE; |
| 7635 | } |
| 7636 | |
| 7637 | /** |
| 7638 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. |
| 7639 | * @ipr_cmd: ipr command struct |
| 7640 | * |
| 7641 | * This function sends a Query IOA Configuration command |
| 7642 | * to the adapter to retrieve the IOA configuration table. |
| 7643 | * |
| 7644 | * Return value: |
| 7645 | * IPR_RC_JOB_RETURN |
| 7646 | **/ |
| 7647 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) |
| 7648 | { |
| 7649 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7650 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7651 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 7652 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7653 | |
| 7654 | ENTER; |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 7655 | if (cap->cap & IPR_CAP_DUAL_IOA_RAID) |
| 7656 | ioa_cfg->dual_raid = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7657 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", |
| 7658 | ucode_vpd->major_release, ucode_vpd->card_type, |
| 7659 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); |
| 7660 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 7661 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 7662 | |
| 7663 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; |
Wayne Boyer | 438b033 | 2010-05-10 09:13:00 -0700 | [diff] [blame] | 7664 | ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7665 | ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; |
| 7666 | ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7667 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 7668 | ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7669 | IPR_IOADL_FLAGS_READ_LAST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7670 | |
| 7671 | ipr_cmd->job_step = ipr_init_res_table; |
| 7672 | |
| 7673 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 7674 | |
| 7675 | LEAVE; |
| 7676 | return IPR_RC_JOB_RETURN; |
| 7677 | } |
| 7678 | |
Gabriel Krisman Bertazi | 1a47af2 | 2015-11-03 16:26:09 -0200 | [diff] [blame] | 7679 | static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd) |
| 7680 | { |
| 7681 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
| 7682 | |
| 7683 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) |
| 7684 | return IPR_RC_JOB_CONTINUE; |
| 7685 | |
| 7686 | return ipr_reset_cmd_failed(ipr_cmd); |
| 7687 | } |
| 7688 | |
| 7689 | static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd, |
| 7690 | __be32 res_handle, u8 sa_code) |
| 7691 | { |
| 7692 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 7693 | |
| 7694 | ioarcb->res_handle = res_handle; |
| 7695 | ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION; |
| 7696 | ioarcb->cmd_pkt.cdb[1] = sa_code; |
| 7697 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 7698 | } |
| 7699 | |
| 7700 | /** |
| 7701 | * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service |
| 7702 | * action |
| 7703 | * |
| 7704 | * Return value: |
| 7705 | * none |
| 7706 | **/ |
| 7707 | static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd) |
| 7708 | { |
| 7709 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
| 7710 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7711 | struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; |
| 7712 | |
| 7713 | ENTER; |
| 7714 | |
| 7715 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; |
| 7716 | |
| 7717 | if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) { |
| 7718 | ipr_build_ioa_service_action(ipr_cmd, |
| 7719 | cpu_to_be32(IPR_IOA_RES_HANDLE), |
| 7720 | IPR_IOA_SA_CHANGE_CACHE_PARAMS); |
| 7721 | |
| 7722 | ioarcb->cmd_pkt.cdb[2] = 0x40; |
| 7723 | |
| 7724 | ipr_cmd->job_step_failed = ipr_ioa_service_action_failed; |
| 7725 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, |
| 7726 | IPR_SET_SUP_DEVICE_TIMEOUT); |
| 7727 | |
| 7728 | LEAVE; |
| 7729 | return IPR_RC_JOB_RETURN; |
| 7730 | } |
| 7731 | |
| 7732 | LEAVE; |
| 7733 | return IPR_RC_JOB_CONTINUE; |
| 7734 | } |
| 7735 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7736 | /** |
| 7737 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. |
| 7738 | * @ipr_cmd: ipr command struct |
| 7739 | * |
| 7740 | * This utility function sends an inquiry to the adapter. |
| 7741 | * |
| 7742 | * Return value: |
| 7743 | * none |
| 7744 | **/ |
| 7745 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7746 | dma_addr_t dma_addr, u8 xfer_len) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7747 | { |
| 7748 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7749 | |
| 7750 | ENTER; |
| 7751 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
| 7752 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 7753 | |
| 7754 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; |
| 7755 | ioarcb->cmd_pkt.cdb[1] = flags; |
| 7756 | ioarcb->cmd_pkt.cdb[2] = page; |
| 7757 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
| 7758 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 7759 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7760 | |
| 7761 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
| 7762 | LEAVE; |
| 7763 | } |
| 7764 | |
| 7765 | /** |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 7766 | * ipr_inquiry_page_supported - Is the given inquiry page supported |
| 7767 | * @page0: inquiry page 0 buffer |
| 7768 | * @page: page code. |
| 7769 | * |
| 7770 | * This function determines if the specified inquiry page is supported. |
| 7771 | * |
| 7772 | * Return value: |
| 7773 | * 1 if page is supported / 0 if not |
| 7774 | **/ |
| 7775 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) |
| 7776 | { |
| 7777 | int i; |
| 7778 | |
| 7779 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) |
| 7780 | if (page0->page[i] == page) |
| 7781 | return 1; |
| 7782 | |
| 7783 | return 0; |
| 7784 | } |
| 7785 | |
| 7786 | /** |
Gabriel Krisman Bertazi | 1021b3f | 2015-11-03 16:26:08 -0200 | [diff] [blame] | 7787 | * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter. |
| 7788 | * @ipr_cmd: ipr command struct |
| 7789 | * |
| 7790 | * This function sends a Page 0xC4 inquiry to the adapter |
| 7791 | * to retrieve software VPD information. |
| 7792 | * |
| 7793 | * Return value: |
| 7794 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 7795 | **/ |
| 7796 | static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd) |
| 7797 | { |
| 7798 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7799 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; |
| 7800 | struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; |
| 7801 | |
| 7802 | ENTER; |
Gabriel Krisman Bertazi | 1a47af2 | 2015-11-03 16:26:09 -0200 | [diff] [blame] | 7803 | ipr_cmd->job_step = ipr_ioafp_set_caching_parameters; |
Gabriel Krisman Bertazi | 1021b3f | 2015-11-03 16:26:08 -0200 | [diff] [blame] | 7804 | memset(pageC4, 0, sizeof(*pageC4)); |
| 7805 | |
| 7806 | if (ipr_inquiry_page_supported(page0, 0xC4)) { |
| 7807 | ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4, |
| 7808 | (ioa_cfg->vpd_cbs_dma |
| 7809 | + offsetof(struct ipr_misc_cbs, |
| 7810 | pageC4_data)), |
| 7811 | sizeof(struct ipr_inquiry_pageC4)); |
| 7812 | return IPR_RC_JOB_RETURN; |
| 7813 | } |
| 7814 | |
| 7815 | LEAVE; |
| 7816 | return IPR_RC_JOB_CONTINUE; |
| 7817 | } |
| 7818 | |
| 7819 | /** |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 7820 | * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. |
| 7821 | * @ipr_cmd: ipr command struct |
| 7822 | * |
| 7823 | * This function sends a Page 0xD0 inquiry to the adapter |
| 7824 | * to retrieve adapter capabilities. |
| 7825 | * |
| 7826 | * Return value: |
| 7827 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 7828 | **/ |
| 7829 | static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) |
| 7830 | { |
| 7831 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7832 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; |
| 7833 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; |
| 7834 | |
| 7835 | ENTER; |
Gabriel Krisman Bertazi | 1021b3f | 2015-11-03 16:26:08 -0200 | [diff] [blame] | 7836 | ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry; |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 7837 | memset(cap, 0, sizeof(*cap)); |
| 7838 | |
| 7839 | if (ipr_inquiry_page_supported(page0, 0xD0)) { |
| 7840 | ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, |
| 7841 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), |
| 7842 | sizeof(struct ipr_inquiry_cap)); |
| 7843 | return IPR_RC_JOB_RETURN; |
| 7844 | } |
| 7845 | |
| 7846 | LEAVE; |
| 7847 | return IPR_RC_JOB_CONTINUE; |
| 7848 | } |
| 7849 | |
| 7850 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7851 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. |
| 7852 | * @ipr_cmd: ipr command struct |
| 7853 | * |
| 7854 | * This function sends a Page 3 inquiry to the adapter |
| 7855 | * to retrieve software VPD information. |
| 7856 | * |
| 7857 | * Return value: |
| 7858 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 7859 | **/ |
| 7860 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) |
| 7861 | { |
| 7862 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 7863 | |
| 7864 | ENTER; |
| 7865 | |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 7866 | ipr_cmd->job_step = ipr_ioafp_cap_inquiry; |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 7867 | |
| 7868 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, |
| 7869 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), |
| 7870 | sizeof(struct ipr_inquiry_page3)); |
| 7871 | |
| 7872 | LEAVE; |
| 7873 | return IPR_RC_JOB_RETURN; |
| 7874 | } |
| 7875 | |
| 7876 | /** |
| 7877 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. |
| 7878 | * @ipr_cmd: ipr command struct |
| 7879 | * |
| 7880 | * This function sends a Page 0 inquiry to the adapter |
| 7881 | * to retrieve supported inquiry pages. |
| 7882 | * |
| 7883 | * Return value: |
| 7884 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 7885 | **/ |
| 7886 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) |
| 7887 | { |
| 7888 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7889 | char type[5]; |
| 7890 | |
| 7891 | ENTER; |
| 7892 | |
| 7893 | /* Grab the type out of the VPD and store it away */ |
| 7894 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); |
| 7895 | type[4] = '\0'; |
| 7896 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); |
| 7897 | |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 7898 | if (ipr_invalid_adapter(ioa_cfg)) { |
| 7899 | dev_err(&ioa_cfg->pdev->dev, |
| 7900 | "Adapter not supported in this hardware configuration.\n"); |
| 7901 | |
| 7902 | if (!ipr_testmode) { |
| 7903 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; |
| 7904 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 7905 | list_add_tail(&ipr_cmd->queue, |
| 7906 | &ioa_cfg->hrrq->hrrq_free_q); |
| 7907 | return IPR_RC_JOB_RETURN; |
| 7908 | } |
| 7909 | } |
| 7910 | |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 7911 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7912 | |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 7913 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
| 7914 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), |
| 7915 | sizeof(struct ipr_inquiry_page0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7916 | |
| 7917 | LEAVE; |
| 7918 | return IPR_RC_JOB_RETURN; |
| 7919 | } |
| 7920 | |
| 7921 | /** |
| 7922 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. |
| 7923 | * @ipr_cmd: ipr command struct |
| 7924 | * |
| 7925 | * This function sends a standard inquiry to the adapter. |
| 7926 | * |
| 7927 | * Return value: |
| 7928 | * IPR_RC_JOB_RETURN |
| 7929 | **/ |
| 7930 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) |
| 7931 | { |
| 7932 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7933 | |
| 7934 | ENTER; |
brking@us.ibm.com | 6227504 | 2005-11-01 17:01:14 -0600 | [diff] [blame] | 7935 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7936 | |
| 7937 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, |
| 7938 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), |
| 7939 | sizeof(struct ipr_ioa_vpd)); |
| 7940 | |
| 7941 | LEAVE; |
| 7942 | return IPR_RC_JOB_RETURN; |
| 7943 | } |
| 7944 | |
| 7945 | /** |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 7946 | * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7947 | * @ipr_cmd: ipr command struct |
| 7948 | * |
| 7949 | * This function send an Identify Host Request Response Queue |
| 7950 | * command to establish the HRRQ with the adapter. |
| 7951 | * |
| 7952 | * Return value: |
| 7953 | * IPR_RC_JOB_RETURN |
| 7954 | **/ |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 7955 | static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7956 | { |
| 7957 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 7958 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7959 | struct ipr_hrr_queue *hrrq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7960 | |
| 7961 | ENTER; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7962 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7963 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); |
| 7964 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 7965 | if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) { |
| 7966 | hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7967 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7968 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; |
| 7969 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7970 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7971 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 7972 | if (ioa_cfg->sis64) |
| 7973 | ioarcb->cmd_pkt.cdb[1] = 0x1; |
| 7974 | |
| 7975 | if (ioa_cfg->nvectors == 1) |
| 7976 | ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE; |
| 7977 | else |
| 7978 | ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE; |
| 7979 | |
| 7980 | ioarcb->cmd_pkt.cdb[2] = |
| 7981 | ((u64) hrrq->host_rrq_dma >> 24) & 0xff; |
| 7982 | ioarcb->cmd_pkt.cdb[3] = |
| 7983 | ((u64) hrrq->host_rrq_dma >> 16) & 0xff; |
| 7984 | ioarcb->cmd_pkt.cdb[4] = |
| 7985 | ((u64) hrrq->host_rrq_dma >> 8) & 0xff; |
| 7986 | ioarcb->cmd_pkt.cdb[5] = |
| 7987 | ((u64) hrrq->host_rrq_dma) & 0xff; |
| 7988 | ioarcb->cmd_pkt.cdb[7] = |
| 7989 | ((sizeof(u32) * hrrq->size) >> 8) & 0xff; |
| 7990 | ioarcb->cmd_pkt.cdb[8] = |
| 7991 | (sizeof(u32) * hrrq->size) & 0xff; |
| 7992 | |
| 7993 | if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 7994 | ioarcb->cmd_pkt.cdb[9] = |
| 7995 | ioa_cfg->identify_hrrq_index; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 7996 | |
| 7997 | if (ioa_cfg->sis64) { |
| 7998 | ioarcb->cmd_pkt.cdb[10] = |
| 7999 | ((u64) hrrq->host_rrq_dma >> 56) & 0xff; |
| 8000 | ioarcb->cmd_pkt.cdb[11] = |
| 8001 | ((u64) hrrq->host_rrq_dma >> 48) & 0xff; |
| 8002 | ioarcb->cmd_pkt.cdb[12] = |
| 8003 | ((u64) hrrq->host_rrq_dma >> 40) & 0xff; |
| 8004 | ioarcb->cmd_pkt.cdb[13] = |
| 8005 | ((u64) hrrq->host_rrq_dma >> 32) & 0xff; |
| 8006 | } |
| 8007 | |
| 8008 | if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8009 | ioarcb->cmd_pkt.cdb[14] = |
| 8010 | ioa_cfg->identify_hrrq_index; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8011 | |
| 8012 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, |
| 8013 | IPR_INTERNAL_TIMEOUT); |
| 8014 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8015 | if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) |
| 8016 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8017 | |
| 8018 | LEAVE; |
| 8019 | return IPR_RC_JOB_RETURN; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8020 | } |
| 8021 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8022 | LEAVE; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8023 | return IPR_RC_JOB_CONTINUE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8024 | } |
| 8025 | |
| 8026 | /** |
| 8027 | * ipr_reset_timer_done - Adapter reset timer function |
| 8028 | * @ipr_cmd: ipr command struct |
| 8029 | * |
| 8030 | * Description: This function is used in adapter reset processing |
| 8031 | * for timing events. If the reset_cmd pointer in the IOA |
| 8032 | * config struct is not this adapter's we are doing nested |
| 8033 | * resets and fail_all_ops will take care of freeing the |
| 8034 | * command block. |
| 8035 | * |
| 8036 | * Return value: |
| 8037 | * none |
| 8038 | **/ |
| 8039 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) |
| 8040 | { |
| 8041 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8042 | unsigned long lock_flags = 0; |
| 8043 | |
| 8044 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 8045 | |
| 8046 | if (ioa_cfg->reset_cmd == ipr_cmd) { |
| 8047 | list_del(&ipr_cmd->queue); |
| 8048 | ipr_cmd->done(ipr_cmd); |
| 8049 | } |
| 8050 | |
| 8051 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 8052 | } |
| 8053 | |
| 8054 | /** |
| 8055 | * ipr_reset_start_timer - Start a timer for adapter reset job |
| 8056 | * @ipr_cmd: ipr command struct |
| 8057 | * @timeout: timeout value |
| 8058 | * |
| 8059 | * Description: This function is used in adapter reset processing |
| 8060 | * for timing events. If the reset_cmd pointer in the IOA |
| 8061 | * config struct is not this adapter's we are doing nested |
| 8062 | * resets and fail_all_ops will take care of freeing the |
| 8063 | * command block. |
| 8064 | * |
| 8065 | * Return value: |
| 8066 | * none |
| 8067 | **/ |
| 8068 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, |
| 8069 | unsigned long timeout) |
| 8070 | { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8071 | |
| 8072 | ENTER; |
| 8073 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8074 | ipr_cmd->done = ipr_reset_ioa_job; |
| 8075 | |
| 8076 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
| 8077 | ipr_cmd->timer.expires = jiffies + timeout; |
| 8078 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; |
| 8079 | add_timer(&ipr_cmd->timer); |
| 8080 | } |
| 8081 | |
| 8082 | /** |
| 8083 | * ipr_init_ioa_mem - Initialize ioa_cfg control block |
| 8084 | * @ioa_cfg: ioa cfg struct |
| 8085 | * |
| 8086 | * Return value: |
| 8087 | * nothing |
| 8088 | **/ |
| 8089 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) |
| 8090 | { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8091 | struct ipr_hrr_queue *hrrq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8092 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8093 | for_each_hrrq(hrrq, ioa_cfg) { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8094 | spin_lock(&hrrq->_lock); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8095 | memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size); |
| 8096 | |
| 8097 | /* Initialize Host RRQ pointers */ |
| 8098 | hrrq->hrrq_start = hrrq->host_rrq; |
| 8099 | hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1]; |
| 8100 | hrrq->hrrq_curr = hrrq->hrrq_start; |
| 8101 | hrrq->toggle_bit = 1; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8102 | spin_unlock(&hrrq->_lock); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8103 | } |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8104 | wmb(); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8105 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8106 | ioa_cfg->identify_hrrq_index = 0; |
| 8107 | if (ioa_cfg->hrrq_num == 1) |
| 8108 | atomic_set(&ioa_cfg->hrrq_index, 0); |
| 8109 | else |
| 8110 | atomic_set(&ioa_cfg->hrrq_index, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8111 | |
| 8112 | /* Zero out config table */ |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 8113 | memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8114 | } |
| 8115 | |
| 8116 | /** |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8117 | * ipr_reset_next_stage - Process IPL stage change based on feedback register. |
| 8118 | * @ipr_cmd: ipr command struct |
| 8119 | * |
| 8120 | * Return value: |
| 8121 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 8122 | **/ |
| 8123 | static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) |
| 8124 | { |
| 8125 | unsigned long stage, stage_time; |
| 8126 | u32 feedback; |
| 8127 | volatile u32 int_reg; |
| 8128 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8129 | u64 maskval = 0; |
| 8130 | |
| 8131 | feedback = readl(ioa_cfg->regs.init_feedback_reg); |
| 8132 | stage = feedback & IPR_IPL_INIT_STAGE_MASK; |
| 8133 | stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; |
| 8134 | |
| 8135 | ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); |
| 8136 | |
| 8137 | /* sanity check the stage_time value */ |
Wayne Boyer | 438b033 | 2010-05-10 09:13:00 -0700 | [diff] [blame] | 8138 | if (stage_time == 0) |
| 8139 | stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; |
| 8140 | else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8141 | stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; |
| 8142 | else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) |
| 8143 | stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; |
| 8144 | |
| 8145 | if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { |
| 8146 | writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); |
| 8147 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 8148 | stage_time = ioa_cfg->transop_timeout; |
| 8149 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
| 8150 | } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { |
Wayne Boyer | 1df79ca | 2010-07-14 10:49:43 -0700 | [diff] [blame] | 8151 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
| 8152 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
| 8153 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
| 8154 | maskval = IPR_PCII_IPL_STAGE_CHANGE; |
| 8155 | maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; |
| 8156 | writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); |
| 8157 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 8158 | return IPR_RC_JOB_CONTINUE; |
| 8159 | } |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8160 | } |
| 8161 | |
| 8162 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
| 8163 | ipr_cmd->timer.expires = jiffies + stage_time * HZ; |
| 8164 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; |
| 8165 | ipr_cmd->done = ipr_reset_ioa_job; |
| 8166 | add_timer(&ipr_cmd->timer); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8167 | |
| 8168 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8169 | |
| 8170 | return IPR_RC_JOB_RETURN; |
| 8171 | } |
| 8172 | |
| 8173 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8174 | * ipr_reset_enable_ioa - Enable the IOA following a reset. |
| 8175 | * @ipr_cmd: ipr command struct |
| 8176 | * |
| 8177 | * This function reinitializes some control blocks and |
| 8178 | * enables destructive diagnostics on the adapter. |
| 8179 | * |
| 8180 | * Return value: |
| 8181 | * IPR_RC_JOB_RETURN |
| 8182 | **/ |
| 8183 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) |
| 8184 | { |
| 8185 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8186 | volatile u32 int_reg; |
Wayne Boyer | 7be9690 | 2010-05-10 09:14:07 -0700 | [diff] [blame] | 8187 | volatile u64 maskval; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8188 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8189 | |
| 8190 | ENTER; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8191 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8192 | ipr_init_ioa_mem(ioa_cfg); |
| 8193 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8194 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 8195 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 8196 | ioa_cfg->hrrq[i].allow_interrupts = 1; |
| 8197 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 8198 | } |
| 8199 | wmb(); |
Wayne Boyer | 8701f18 | 2010-06-04 10:26:50 -0700 | [diff] [blame] | 8200 | if (ioa_cfg->sis64) { |
| 8201 | /* Set the adapter to the correct endian mode. */ |
| 8202 | writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); |
| 8203 | int_reg = readl(ioa_cfg->regs.endian_swap_reg); |
| 8204 | } |
| 8205 | |
Wayne Boyer | 7be9690 | 2010-05-10 09:14:07 -0700 | [diff] [blame] | 8206 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8207 | |
| 8208 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
| 8209 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8210 | ioa_cfg->regs.clr_interrupt_mask_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8211 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 8212 | return IPR_RC_JOB_CONTINUE; |
| 8213 | } |
| 8214 | |
| 8215 | /* Enable destructive diagnostics on IOA */ |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8216 | writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8217 | |
Wayne Boyer | 7be9690 | 2010-05-10 09:14:07 -0700 | [diff] [blame] | 8218 | if (ioa_cfg->sis64) { |
| 8219 | maskval = IPR_PCII_IPL_STAGE_CHANGE; |
| 8220 | maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; |
| 8221 | writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); |
| 8222 | } else |
| 8223 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8224 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8225 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 8226 | |
| 8227 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); |
| 8228 | |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8229 | if (ioa_cfg->sis64) { |
| 8230 | ipr_cmd->job_step = ipr_reset_next_stage; |
| 8231 | return IPR_RC_JOB_CONTINUE; |
| 8232 | } |
| 8233 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8234 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 8235 | ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8236 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; |
| 8237 | ipr_cmd->done = ipr_reset_ioa_job; |
| 8238 | add_timer(&ipr_cmd->timer); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8239 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8240 | |
| 8241 | LEAVE; |
| 8242 | return IPR_RC_JOB_RETURN; |
| 8243 | } |
| 8244 | |
| 8245 | /** |
| 8246 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. |
| 8247 | * @ipr_cmd: ipr command struct |
| 8248 | * |
| 8249 | * This function is invoked when an adapter dump has run out |
| 8250 | * of processing time. |
| 8251 | * |
| 8252 | * Return value: |
| 8253 | * IPR_RC_JOB_CONTINUE |
| 8254 | **/ |
| 8255 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) |
| 8256 | { |
| 8257 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8258 | |
| 8259 | if (ioa_cfg->sdt_state == GET_DUMP) |
Brian King | 41e9a69 | 2011-09-21 08:51:11 -0500 | [diff] [blame] | 8260 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
| 8261 | else if (ioa_cfg->sdt_state == READ_DUMP) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8262 | ioa_cfg->sdt_state = ABORT_DUMP; |
| 8263 | |
Brian King | 4c647e9 | 2011-10-15 09:08:56 -0500 | [diff] [blame] | 8264 | ioa_cfg->dump_timeout = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8265 | ipr_cmd->job_step = ipr_reset_alert; |
| 8266 | |
| 8267 | return IPR_RC_JOB_CONTINUE; |
| 8268 | } |
| 8269 | |
| 8270 | /** |
| 8271 | * ipr_unit_check_no_data - Log a unit check/no data error log |
| 8272 | * @ioa_cfg: ioa config struct |
| 8273 | * |
| 8274 | * Logs an error indicating the adapter unit checked, but for some |
| 8275 | * reason, we were unable to fetch the unit check buffer. |
| 8276 | * |
| 8277 | * Return value: |
| 8278 | * nothing |
| 8279 | **/ |
| 8280 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) |
| 8281 | { |
| 8282 | ioa_cfg->errors_logged++; |
| 8283 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); |
| 8284 | } |
| 8285 | |
| 8286 | /** |
| 8287 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA |
| 8288 | * @ioa_cfg: ioa config struct |
| 8289 | * |
| 8290 | * Fetches the unit check buffer from the adapter by clocking the data |
| 8291 | * through the mailbox register. |
| 8292 | * |
| 8293 | * Return value: |
| 8294 | * nothing |
| 8295 | **/ |
| 8296 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) |
| 8297 | { |
| 8298 | unsigned long mailbox; |
| 8299 | struct ipr_hostrcb *hostrcb; |
| 8300 | struct ipr_uc_sdt sdt; |
| 8301 | int rc, length; |
Brian King | 65f5647 | 2007-04-26 16:00:12 -0500 | [diff] [blame] | 8302 | u32 ioasc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8303 | |
| 8304 | mailbox = readl(ioa_cfg->ioa_mailbox); |
| 8305 | |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 8306 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8307 | ipr_unit_check_no_data(ioa_cfg); |
| 8308 | return; |
| 8309 | } |
| 8310 | |
| 8311 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); |
| 8312 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, |
| 8313 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); |
| 8314 | |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 8315 | if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || |
| 8316 | ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && |
| 8317 | (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8318 | ipr_unit_check_no_data(ioa_cfg); |
| 8319 | return; |
| 8320 | } |
| 8321 | |
| 8322 | /* Find length of the first sdt entry (UC buffer) */ |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 8323 | if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) |
| 8324 | length = be32_to_cpu(sdt.entry[0].end_token); |
| 8325 | else |
| 8326 | length = (be32_to_cpu(sdt.entry[0].end_token) - |
| 8327 | be32_to_cpu(sdt.entry[0].start_token)) & |
| 8328 | IPR_FMT2_MBX_ADDR_MASK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8329 | |
| 8330 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, |
| 8331 | struct ipr_hostrcb, queue); |
| 8332 | list_del(&hostrcb->queue); |
| 8333 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); |
| 8334 | |
| 8335 | rc = ipr_get_ldump_data_section(ioa_cfg, |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 8336 | be32_to_cpu(sdt.entry[0].start_token), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8337 | (__be32 *)&hostrcb->hcam, |
| 8338 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); |
| 8339 | |
Brian King | 65f5647 | 2007-04-26 16:00:12 -0500 | [diff] [blame] | 8340 | if (!rc) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8341 | ipr_handle_log_data(ioa_cfg, hostrcb); |
Wayne Boyer | 4565e37 | 2010-02-19 13:24:07 -0800 | [diff] [blame] | 8342 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
Brian King | 65f5647 | 2007-04-26 16:00:12 -0500 | [diff] [blame] | 8343 | if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && |
| 8344 | ioa_cfg->sdt_state == GET_DUMP) |
| 8345 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
| 8346 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8347 | ipr_unit_check_no_data(ioa_cfg); |
| 8348 | |
| 8349 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); |
| 8350 | } |
| 8351 | |
| 8352 | /** |
Wayne Boyer | 110def8 | 2010-11-04 09:36:16 -0700 | [diff] [blame] | 8353 | * ipr_reset_get_unit_check_job - Call to get the unit check buffer. |
| 8354 | * @ipr_cmd: ipr command struct |
| 8355 | * |
| 8356 | * Description: This function will call to get the unit check buffer. |
| 8357 | * |
| 8358 | * Return value: |
| 8359 | * IPR_RC_JOB_RETURN |
| 8360 | **/ |
| 8361 | static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) |
| 8362 | { |
| 8363 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8364 | |
| 8365 | ENTER; |
| 8366 | ioa_cfg->ioa_unit_checked = 0; |
| 8367 | ipr_get_unit_check_buffer(ioa_cfg); |
| 8368 | ipr_cmd->job_step = ipr_reset_alert; |
| 8369 | ipr_reset_start_timer(ipr_cmd, 0); |
| 8370 | |
| 8371 | LEAVE; |
| 8372 | return IPR_RC_JOB_RETURN; |
| 8373 | } |
| 8374 | |
Gabriel Krisman Bertazi | f41f1d9 | 2015-11-03 16:26:06 -0200 | [diff] [blame] | 8375 | static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd) |
| 8376 | { |
| 8377 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8378 | |
| 8379 | ENTER; |
| 8380 | |
| 8381 | if (ioa_cfg->sdt_state != GET_DUMP) |
| 8382 | return IPR_RC_JOB_RETURN; |
| 8383 | |
| 8384 | if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left || |
| 8385 | (readl(ioa_cfg->regs.sense_interrupt_reg) & |
| 8386 | IPR_PCII_MAILBOX_STABLE)) { |
| 8387 | |
| 8388 | if (!ipr_cmd->u.time_left) |
| 8389 | dev_err(&ioa_cfg->pdev->dev, |
| 8390 | "Timed out waiting for Mailbox register.\n"); |
| 8391 | |
| 8392 | ioa_cfg->sdt_state = READ_DUMP; |
| 8393 | ioa_cfg->dump_timeout = 0; |
| 8394 | if (ioa_cfg->sis64) |
| 8395 | ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT); |
| 8396 | else |
| 8397 | ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT); |
| 8398 | ipr_cmd->job_step = ipr_reset_wait_for_dump; |
| 8399 | schedule_work(&ioa_cfg->work_q); |
| 8400 | |
| 8401 | } else { |
| 8402 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
| 8403 | ipr_reset_start_timer(ipr_cmd, |
| 8404 | IPR_CHECK_FOR_RESET_TIMEOUT); |
| 8405 | } |
| 8406 | |
| 8407 | LEAVE; |
| 8408 | return IPR_RC_JOB_RETURN; |
| 8409 | } |
| 8410 | |
Wayne Boyer | 110def8 | 2010-11-04 09:36:16 -0700 | [diff] [blame] | 8411 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8412 | * ipr_reset_restore_cfg_space - Restore PCI config space. |
| 8413 | * @ipr_cmd: ipr command struct |
| 8414 | * |
| 8415 | * Description: This function restores the saved PCI config space of |
| 8416 | * the adapter, fails all outstanding ops back to the callers, and |
| 8417 | * fetches the dump/unit check if applicable to this reset. |
| 8418 | * |
| 8419 | * Return value: |
| 8420 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 8421 | **/ |
| 8422 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) |
| 8423 | { |
| 8424 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
Wayne Boyer | 630ad831 | 2011-04-07 12:12:30 -0700 | [diff] [blame] | 8425 | u32 int_reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8426 | |
| 8427 | ENTER; |
Kleber Sacilotto de Souza | 99c965d | 2009-11-25 20:13:43 -0200 | [diff] [blame] | 8428 | ioa_cfg->pdev->state_saved = true; |
Jon Mason | 1d3c16a | 2010-11-30 17:43:26 -0600 | [diff] [blame] | 8429 | pci_restore_state(ioa_cfg->pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8430 | |
| 8431 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 8432 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8433 | return IPR_RC_JOB_CONTINUE; |
| 8434 | } |
| 8435 | |
| 8436 | ipr_fail_all_ops(ioa_cfg); |
| 8437 | |
Wayne Boyer | 8701f18 | 2010-06-04 10:26:50 -0700 | [diff] [blame] | 8438 | if (ioa_cfg->sis64) { |
| 8439 | /* Set the adapter to the correct endian mode. */ |
| 8440 | writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); |
| 8441 | int_reg = readl(ioa_cfg->regs.endian_swap_reg); |
| 8442 | } |
| 8443 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8444 | if (ioa_cfg->ioa_unit_checked) { |
Wayne Boyer | 110def8 | 2010-11-04 09:36:16 -0700 | [diff] [blame] | 8445 | if (ioa_cfg->sis64) { |
| 8446 | ipr_cmd->job_step = ipr_reset_get_unit_check_job; |
| 8447 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); |
| 8448 | return IPR_RC_JOB_RETURN; |
| 8449 | } else { |
| 8450 | ioa_cfg->ioa_unit_checked = 0; |
| 8451 | ipr_get_unit_check_buffer(ioa_cfg); |
| 8452 | ipr_cmd->job_step = ipr_reset_alert; |
| 8453 | ipr_reset_start_timer(ipr_cmd, 0); |
| 8454 | return IPR_RC_JOB_RETURN; |
| 8455 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8456 | } |
| 8457 | |
| 8458 | if (ioa_cfg->in_ioa_bringdown) { |
| 8459 | ipr_cmd->job_step = ipr_ioa_bringdown_done; |
Gabriel Krisman Bertazi | f41f1d9 | 2015-11-03 16:26:06 -0200 | [diff] [blame] | 8460 | } else if (ioa_cfg->sdt_state == GET_DUMP) { |
| 8461 | ipr_cmd->job_step = ipr_dump_mailbox_wait; |
| 8462 | ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8463 | } else { |
| 8464 | ipr_cmd->job_step = ipr_reset_enable_ioa; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8465 | } |
| 8466 | |
Wayne Boyer | 438b033 | 2010-05-10 09:13:00 -0700 | [diff] [blame] | 8467 | LEAVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8468 | return IPR_RC_JOB_CONTINUE; |
| 8469 | } |
| 8470 | |
| 8471 | /** |
Brian King | e619e1a | 2007-01-23 11:25:37 -0600 | [diff] [blame] | 8472 | * ipr_reset_bist_done - BIST has completed on the adapter. |
| 8473 | * @ipr_cmd: ipr command struct |
| 8474 | * |
| 8475 | * Description: Unblock config space and resume the reset process. |
| 8476 | * |
| 8477 | * Return value: |
| 8478 | * IPR_RC_JOB_CONTINUE |
| 8479 | **/ |
| 8480 | static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) |
| 8481 | { |
Jan Kiszka | fb51ccb | 2011-11-04 09:45:59 +0100 | [diff] [blame] | 8482 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8483 | |
Brian King | e619e1a | 2007-01-23 11:25:37 -0600 | [diff] [blame] | 8484 | ENTER; |
Jan Kiszka | fb51ccb | 2011-11-04 09:45:59 +0100 | [diff] [blame] | 8485 | if (ioa_cfg->cfg_locked) |
| 8486 | pci_cfg_access_unlock(ioa_cfg->pdev); |
| 8487 | ioa_cfg->cfg_locked = 0; |
Brian King | e619e1a | 2007-01-23 11:25:37 -0600 | [diff] [blame] | 8488 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; |
| 8489 | LEAVE; |
| 8490 | return IPR_RC_JOB_CONTINUE; |
| 8491 | } |
| 8492 | |
| 8493 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8494 | * ipr_reset_start_bist - Run BIST on the adapter. |
| 8495 | * @ipr_cmd: ipr command struct |
| 8496 | * |
| 8497 | * Description: This function runs BIST on the adapter, then delays 2 seconds. |
| 8498 | * |
| 8499 | * Return value: |
| 8500 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 8501 | **/ |
| 8502 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) |
| 8503 | { |
| 8504 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
Wayne Boyer | cb237ef | 2010-06-17 11:51:40 -0700 | [diff] [blame] | 8505 | int rc = PCIBIOS_SUCCESSFUL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8506 | |
| 8507 | ENTER; |
Wayne Boyer | cb237ef | 2010-06-17 11:51:40 -0700 | [diff] [blame] | 8508 | if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) |
| 8509 | writel(IPR_UPROCI_SIS64_START_BIST, |
| 8510 | ioa_cfg->regs.set_uproc_interrupt_reg32); |
| 8511 | else |
| 8512 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
| 8513 | |
| 8514 | if (rc == PCIBIOS_SUCCESSFUL) { |
Brian King | e619e1a | 2007-01-23 11:25:37 -0600 | [diff] [blame] | 8515 | ipr_cmd->job_step = ipr_reset_bist_done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8516 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
| 8517 | rc = IPR_RC_JOB_RETURN; |
Wayne Boyer | cb237ef | 2010-06-17 11:51:40 -0700 | [diff] [blame] | 8518 | } else { |
Jan Kiszka | fb51ccb | 2011-11-04 09:45:59 +0100 | [diff] [blame] | 8519 | if (ioa_cfg->cfg_locked) |
| 8520 | pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev); |
| 8521 | ioa_cfg->cfg_locked = 0; |
Wayne Boyer | cb237ef | 2010-06-17 11:51:40 -0700 | [diff] [blame] | 8522 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
| 8523 | rc = IPR_RC_JOB_CONTINUE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8524 | } |
| 8525 | |
| 8526 | LEAVE; |
| 8527 | return rc; |
| 8528 | } |
| 8529 | |
| 8530 | /** |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 8531 | * ipr_reset_slot_reset_done - Clear PCI reset to the adapter |
| 8532 | * @ipr_cmd: ipr command struct |
| 8533 | * |
| 8534 | * Description: This clears PCI reset to the adapter and delays two seconds. |
| 8535 | * |
| 8536 | * Return value: |
| 8537 | * IPR_RC_JOB_RETURN |
| 8538 | **/ |
| 8539 | static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) |
| 8540 | { |
| 8541 | ENTER; |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 8542 | ipr_cmd->job_step = ipr_reset_bist_done; |
| 8543 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
| 8544 | LEAVE; |
| 8545 | return IPR_RC_JOB_RETURN; |
| 8546 | } |
| 8547 | |
| 8548 | /** |
Brian King | 2796ca5 | 2015-03-26 11:23:52 -0500 | [diff] [blame] | 8549 | * ipr_reset_reset_work - Pulse a PCIe fundamental reset |
| 8550 | * @work: work struct |
| 8551 | * |
| 8552 | * Description: This pulses warm reset to a slot. |
| 8553 | * |
| 8554 | **/ |
| 8555 | static void ipr_reset_reset_work(struct work_struct *work) |
| 8556 | { |
| 8557 | struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work); |
| 8558 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8559 | struct pci_dev *pdev = ioa_cfg->pdev; |
| 8560 | unsigned long lock_flags = 0; |
| 8561 | |
| 8562 | ENTER; |
| 8563 | pci_set_pcie_reset_state(pdev, pcie_warm_reset); |
| 8564 | msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT)); |
| 8565 | pci_set_pcie_reset_state(pdev, pcie_deassert_reset); |
| 8566 | |
| 8567 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 8568 | if (ioa_cfg->reset_cmd == ipr_cmd) |
| 8569 | ipr_reset_ioa_job(ipr_cmd); |
| 8570 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 8571 | LEAVE; |
| 8572 | } |
| 8573 | |
| 8574 | /** |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 8575 | * ipr_reset_slot_reset - Reset the PCI slot of the adapter. |
| 8576 | * @ipr_cmd: ipr command struct |
| 8577 | * |
| 8578 | * Description: This asserts PCI reset to the adapter. |
| 8579 | * |
| 8580 | * Return value: |
| 8581 | * IPR_RC_JOB_RETURN |
| 8582 | **/ |
| 8583 | static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) |
| 8584 | { |
| 8585 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 8586 | |
| 8587 | ENTER; |
Brian King | 2796ca5 | 2015-03-26 11:23:52 -0500 | [diff] [blame] | 8588 | INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work); |
| 8589 | queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work); |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 8590 | ipr_cmd->job_step = ipr_reset_slot_reset_done; |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 8591 | LEAVE; |
| 8592 | return IPR_RC_JOB_RETURN; |
| 8593 | } |
| 8594 | |
| 8595 | /** |
Jan Kiszka | fb51ccb | 2011-11-04 09:45:59 +0100 | [diff] [blame] | 8596 | * ipr_reset_block_config_access_wait - Wait for permission to block config access |
| 8597 | * @ipr_cmd: ipr command struct |
| 8598 | * |
| 8599 | * Description: This attempts to block config access to the IOA. |
| 8600 | * |
| 8601 | * Return value: |
| 8602 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 8603 | **/ |
| 8604 | static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd) |
| 8605 | { |
| 8606 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8607 | int rc = IPR_RC_JOB_CONTINUE; |
| 8608 | |
| 8609 | if (pci_cfg_access_trylock(ioa_cfg->pdev)) { |
| 8610 | ioa_cfg->cfg_locked = 1; |
| 8611 | ipr_cmd->job_step = ioa_cfg->reset; |
| 8612 | } else { |
| 8613 | if (ipr_cmd->u.time_left) { |
| 8614 | rc = IPR_RC_JOB_RETURN; |
| 8615 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
| 8616 | ipr_reset_start_timer(ipr_cmd, |
| 8617 | IPR_CHECK_FOR_RESET_TIMEOUT); |
| 8618 | } else { |
| 8619 | ipr_cmd->job_step = ioa_cfg->reset; |
| 8620 | dev_err(&ioa_cfg->pdev->dev, |
| 8621 | "Timed out waiting to lock config access. Resetting anyway.\n"); |
| 8622 | } |
| 8623 | } |
| 8624 | |
| 8625 | return rc; |
| 8626 | } |
| 8627 | |
| 8628 | /** |
| 8629 | * ipr_reset_block_config_access - Block config access to the IOA |
| 8630 | * @ipr_cmd: ipr command struct |
| 8631 | * |
| 8632 | * Description: This attempts to block config access to the IOA |
| 8633 | * |
| 8634 | * Return value: |
| 8635 | * IPR_RC_JOB_CONTINUE |
| 8636 | **/ |
| 8637 | static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd) |
| 8638 | { |
| 8639 | ipr_cmd->ioa_cfg->cfg_locked = 0; |
| 8640 | ipr_cmd->job_step = ipr_reset_block_config_access_wait; |
| 8641 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; |
| 8642 | return IPR_RC_JOB_CONTINUE; |
| 8643 | } |
| 8644 | |
| 8645 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8646 | * ipr_reset_allowed - Query whether or not IOA can be reset |
| 8647 | * @ioa_cfg: ioa config struct |
| 8648 | * |
| 8649 | * Return value: |
| 8650 | * 0 if reset not allowed / non-zero if reset is allowed |
| 8651 | **/ |
| 8652 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) |
| 8653 | { |
| 8654 | volatile u32 temp_reg; |
| 8655 | |
| 8656 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 8657 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); |
| 8658 | } |
| 8659 | |
| 8660 | /** |
| 8661 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. |
| 8662 | * @ipr_cmd: ipr command struct |
| 8663 | * |
| 8664 | * Description: This function waits for adapter permission to run BIST, |
| 8665 | * then runs BIST. If the adapter does not give permission after a |
| 8666 | * reasonable time, we will reset the adapter anyway. The impact of |
| 8667 | * resetting the adapter without warning the adapter is the risk of |
| 8668 | * losing the persistent error log on the adapter. If the adapter is |
| 8669 | * reset while it is writing to the flash on the adapter, the flash |
| 8670 | * segment will have bad ECC and be zeroed. |
| 8671 | * |
| 8672 | * Return value: |
| 8673 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 8674 | **/ |
| 8675 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) |
| 8676 | { |
| 8677 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8678 | int rc = IPR_RC_JOB_RETURN; |
| 8679 | |
| 8680 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { |
| 8681 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
| 8682 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); |
| 8683 | } else { |
Jan Kiszka | fb51ccb | 2011-11-04 09:45:59 +0100 | [diff] [blame] | 8684 | ipr_cmd->job_step = ipr_reset_block_config_access; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8685 | rc = IPR_RC_JOB_CONTINUE; |
| 8686 | } |
| 8687 | |
| 8688 | return rc; |
| 8689 | } |
| 8690 | |
| 8691 | /** |
Wayne Boyer | 8701f18 | 2010-06-04 10:26:50 -0700 | [diff] [blame] | 8692 | * ipr_reset_alert - Alert the adapter of a pending reset |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8693 | * @ipr_cmd: ipr command struct |
| 8694 | * |
| 8695 | * Description: This function alerts the adapter that it will be reset. |
| 8696 | * If memory space is not currently enabled, proceed directly |
| 8697 | * to running BIST on the adapter. The timer must always be started |
| 8698 | * so we guarantee we do not run BIST from ipr_isr. |
| 8699 | * |
| 8700 | * Return value: |
| 8701 | * IPR_RC_JOB_RETURN |
| 8702 | **/ |
| 8703 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) |
| 8704 | { |
| 8705 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8706 | u16 cmd_reg; |
| 8707 | int rc; |
| 8708 | |
| 8709 | ENTER; |
| 8710 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); |
| 8711 | |
| 8712 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { |
| 8713 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 8714 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8715 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; |
| 8716 | } else { |
Jan Kiszka | fb51ccb | 2011-11-04 09:45:59 +0100 | [diff] [blame] | 8717 | ipr_cmd->job_step = ipr_reset_block_config_access; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8718 | } |
| 8719 | |
| 8720 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; |
| 8721 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); |
| 8722 | |
| 8723 | LEAVE; |
| 8724 | return IPR_RC_JOB_RETURN; |
| 8725 | } |
| 8726 | |
| 8727 | /** |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 8728 | * ipr_reset_quiesce_done - Complete IOA disconnect |
| 8729 | * @ipr_cmd: ipr command struct |
| 8730 | * |
| 8731 | * Description: Freeze the adapter to complete quiesce processing |
| 8732 | * |
| 8733 | * Return value: |
| 8734 | * IPR_RC_JOB_CONTINUE |
| 8735 | **/ |
| 8736 | static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd) |
| 8737 | { |
| 8738 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8739 | |
| 8740 | ENTER; |
| 8741 | ipr_cmd->job_step = ipr_ioa_bringdown_done; |
| 8742 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
| 8743 | LEAVE; |
| 8744 | return IPR_RC_JOB_CONTINUE; |
| 8745 | } |
| 8746 | |
| 8747 | /** |
| 8748 | * ipr_reset_cancel_hcam_done - Check for outstanding commands |
| 8749 | * @ipr_cmd: ipr command struct |
| 8750 | * |
| 8751 | * Description: Ensure nothing is outstanding to the IOA and |
| 8752 | * proceed with IOA disconnect. Otherwise reset the IOA. |
| 8753 | * |
| 8754 | * Return value: |
| 8755 | * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE |
| 8756 | **/ |
| 8757 | static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd) |
| 8758 | { |
| 8759 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8760 | struct ipr_cmnd *loop_cmd; |
| 8761 | struct ipr_hrr_queue *hrrq; |
| 8762 | int rc = IPR_RC_JOB_CONTINUE; |
| 8763 | int count = 0; |
| 8764 | |
| 8765 | ENTER; |
| 8766 | ipr_cmd->job_step = ipr_reset_quiesce_done; |
| 8767 | |
| 8768 | for_each_hrrq(hrrq, ioa_cfg) { |
| 8769 | spin_lock(&hrrq->_lock); |
| 8770 | list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) { |
| 8771 | count++; |
| 8772 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 8773 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
| 8774 | rc = IPR_RC_JOB_RETURN; |
| 8775 | break; |
| 8776 | } |
| 8777 | spin_unlock(&hrrq->_lock); |
| 8778 | |
| 8779 | if (count) |
| 8780 | break; |
| 8781 | } |
| 8782 | |
| 8783 | LEAVE; |
| 8784 | return rc; |
| 8785 | } |
| 8786 | |
| 8787 | /** |
| 8788 | * ipr_reset_cancel_hcam - Cancel outstanding HCAMs |
| 8789 | * @ipr_cmd: ipr command struct |
| 8790 | * |
| 8791 | * Description: Cancel any oustanding HCAMs to the IOA. |
| 8792 | * |
| 8793 | * Return value: |
| 8794 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 8795 | **/ |
| 8796 | static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd) |
| 8797 | { |
| 8798 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8799 | int rc = IPR_RC_JOB_CONTINUE; |
| 8800 | struct ipr_cmd_pkt *cmd_pkt; |
| 8801 | struct ipr_cmnd *hcam_cmd; |
| 8802 | struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ]; |
| 8803 | |
| 8804 | ENTER; |
| 8805 | ipr_cmd->job_step = ipr_reset_cancel_hcam_done; |
| 8806 | |
| 8807 | if (!hrrq->ioa_is_dead) { |
| 8808 | if (!list_empty(&ioa_cfg->hostrcb_pending_q)) { |
| 8809 | list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) { |
| 8810 | if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC) |
| 8811 | continue; |
| 8812 | |
| 8813 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 8814 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 8815 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
| 8816 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
| 8817 | cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST; |
| 8818 | cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB; |
| 8819 | cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff; |
| 8820 | cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff; |
| 8821 | cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff; |
| 8822 | cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff; |
| 8823 | cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff; |
| 8824 | cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff; |
| 8825 | cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff; |
| 8826 | cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff; |
| 8827 | |
| 8828 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, |
| 8829 | IPR_CANCEL_TIMEOUT); |
| 8830 | |
| 8831 | rc = IPR_RC_JOB_RETURN; |
| 8832 | ipr_cmd->job_step = ipr_reset_cancel_hcam; |
| 8833 | break; |
| 8834 | } |
| 8835 | } |
| 8836 | } else |
| 8837 | ipr_cmd->job_step = ipr_reset_alert; |
| 8838 | |
| 8839 | LEAVE; |
| 8840 | return rc; |
| 8841 | } |
| 8842 | |
| 8843 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8844 | * ipr_reset_ucode_download_done - Microcode download completion |
| 8845 | * @ipr_cmd: ipr command struct |
| 8846 | * |
| 8847 | * Description: This function unmaps the microcode download buffer. |
| 8848 | * |
| 8849 | * Return value: |
| 8850 | * IPR_RC_JOB_CONTINUE |
| 8851 | **/ |
| 8852 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) |
| 8853 | { |
| 8854 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8855 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; |
| 8856 | |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 8857 | dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8858 | sglist->num_sg, DMA_TO_DEVICE); |
| 8859 | |
| 8860 | ipr_cmd->job_step = ipr_reset_alert; |
| 8861 | return IPR_RC_JOB_CONTINUE; |
| 8862 | } |
| 8863 | |
| 8864 | /** |
| 8865 | * ipr_reset_ucode_download - Download microcode to the adapter |
| 8866 | * @ipr_cmd: ipr command struct |
| 8867 | * |
| 8868 | * Description: This function checks to see if it there is microcode |
| 8869 | * to download to the adapter. If there is, a download is performed. |
| 8870 | * |
| 8871 | * Return value: |
| 8872 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 8873 | **/ |
| 8874 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) |
| 8875 | { |
| 8876 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8877 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; |
| 8878 | |
| 8879 | ENTER; |
| 8880 | ipr_cmd->job_step = ipr_reset_alert; |
| 8881 | |
| 8882 | if (!sglist) |
| 8883 | return IPR_RC_JOB_CONTINUE; |
| 8884 | |
| 8885 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 8886 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
| 8887 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; |
| 8888 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; |
| 8889 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; |
| 8890 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; |
| 8891 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; |
| 8892 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 8893 | if (ioa_cfg->sis64) |
| 8894 | ipr_build_ucode_ioadl64(ipr_cmd, sglist); |
| 8895 | else |
| 8896 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8897 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
| 8898 | |
| 8899 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, |
| 8900 | IPR_WRITE_BUFFER_TIMEOUT); |
| 8901 | |
| 8902 | LEAVE; |
| 8903 | return IPR_RC_JOB_RETURN; |
| 8904 | } |
| 8905 | |
| 8906 | /** |
| 8907 | * ipr_reset_shutdown_ioa - Shutdown the adapter |
| 8908 | * @ipr_cmd: ipr command struct |
| 8909 | * |
| 8910 | * Description: This function issues an adapter shutdown of the |
| 8911 | * specified type to the specified adapter as part of the |
| 8912 | * adapter reset job. |
| 8913 | * |
| 8914 | * Return value: |
| 8915 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
| 8916 | **/ |
| 8917 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) |
| 8918 | { |
| 8919 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8920 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; |
| 8921 | unsigned long timeout; |
| 8922 | int rc = IPR_RC_JOB_CONTINUE; |
| 8923 | |
| 8924 | ENTER; |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 8925 | if (shutdown_type == IPR_SHUTDOWN_QUIESCE) |
| 8926 | ipr_cmd->job_step = ipr_reset_cancel_hcam; |
| 8927 | else if (shutdown_type != IPR_SHUTDOWN_NONE && |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 8928 | !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8929 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 8930 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 8931 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; |
| 8932 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; |
| 8933 | |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 8934 | if (shutdown_type == IPR_SHUTDOWN_NORMAL) |
| 8935 | timeout = IPR_SHUTDOWN_TIMEOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8936 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) |
| 8937 | timeout = IPR_INTERNAL_TIMEOUT; |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 8938 | else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
| 8939 | timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8940 | else |
Brian King | ac09c34 | 2007-04-26 16:00:16 -0500 | [diff] [blame] | 8941 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8942 | |
| 8943 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); |
| 8944 | |
| 8945 | rc = IPR_RC_JOB_RETURN; |
| 8946 | ipr_cmd->job_step = ipr_reset_ucode_download; |
| 8947 | } else |
| 8948 | ipr_cmd->job_step = ipr_reset_alert; |
| 8949 | |
| 8950 | LEAVE; |
| 8951 | return rc; |
| 8952 | } |
| 8953 | |
| 8954 | /** |
| 8955 | * ipr_reset_ioa_job - Adapter reset job |
| 8956 | * @ipr_cmd: ipr command struct |
| 8957 | * |
| 8958 | * Description: This function is the job router for the adapter reset job. |
| 8959 | * |
| 8960 | * Return value: |
| 8961 | * none |
| 8962 | **/ |
| 8963 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) |
| 8964 | { |
| 8965 | u32 rc, ioasc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8966 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 8967 | |
| 8968 | do { |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 8969 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8970 | |
| 8971 | if (ioa_cfg->reset_cmd != ipr_cmd) { |
| 8972 | /* |
| 8973 | * We are doing nested adapter resets and this is |
| 8974 | * not the current reset job. |
| 8975 | */ |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 8976 | list_add_tail(&ipr_cmd->queue, |
| 8977 | &ipr_cmd->hrrq->hrrq_free_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8978 | return; |
| 8979 | } |
| 8980 | |
| 8981 | if (IPR_IOASC_SENSE_KEY(ioasc)) { |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 8982 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
| 8983 | if (rc == IPR_RC_JOB_RETURN) |
| 8984 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8985 | } |
| 8986 | |
| 8987 | ipr_reinit_ipr_cmnd(ipr_cmd); |
brking@us.ibm.com | dfed823 | 2005-11-01 17:02:55 -0600 | [diff] [blame] | 8988 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8989 | rc = ipr_cmd->job_step(ipr_cmd); |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 8990 | } while (rc == IPR_RC_JOB_CONTINUE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8991 | } |
| 8992 | |
| 8993 | /** |
| 8994 | * _ipr_initiate_ioa_reset - Initiate an adapter reset |
| 8995 | * @ioa_cfg: ioa config struct |
| 8996 | * @job_step: first job step of reset job |
| 8997 | * @shutdown_type: shutdown type |
| 8998 | * |
| 8999 | * Description: This function will initiate the reset of the given adapter |
| 9000 | * starting at the selected job step. |
| 9001 | * If the caller needs to wait on the completion of the reset, |
| 9002 | * the caller must sleep on the reset_wait_q. |
| 9003 | * |
| 9004 | * Return value: |
| 9005 | * none |
| 9006 | **/ |
| 9007 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, |
| 9008 | int (*job_step) (struct ipr_cmnd *), |
| 9009 | enum ipr_shutdown_type shutdown_type) |
| 9010 | { |
| 9011 | struct ipr_cmnd *ipr_cmd; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 9012 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9013 | |
| 9014 | ioa_cfg->in_reset_reload = 1; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 9015 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 9016 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 9017 | ioa_cfg->hrrq[i].allow_cmds = 0; |
| 9018 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 9019 | } |
| 9020 | wmb(); |
Brian King | bfae782 | 2013-01-30 23:45:08 -0600 | [diff] [blame] | 9021 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) |
| 9022 | scsi_block_requests(ioa_cfg->host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9023 | |
| 9024 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 9025 | ioa_cfg->reset_cmd = ipr_cmd; |
| 9026 | ipr_cmd->job_step = job_step; |
| 9027 | ipr_cmd->u.shutdown_type = shutdown_type; |
| 9028 | |
| 9029 | ipr_reset_ioa_job(ipr_cmd); |
| 9030 | } |
| 9031 | |
| 9032 | /** |
| 9033 | * ipr_initiate_ioa_reset - Initiate an adapter reset |
| 9034 | * @ioa_cfg: ioa config struct |
| 9035 | * @shutdown_type: shutdown type |
| 9036 | * |
| 9037 | * Description: This function will initiate the reset of the given adapter. |
| 9038 | * If the caller needs to wait on the completion of the reset, |
| 9039 | * the caller must sleep on the reset_wait_q. |
| 9040 | * |
| 9041 | * Return value: |
| 9042 | * none |
| 9043 | **/ |
| 9044 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, |
| 9045 | enum ipr_shutdown_type shutdown_type) |
| 9046 | { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 9047 | int i; |
| 9048 | |
| 9049 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9050 | return; |
| 9051 | |
Brian King | 41e9a69 | 2011-09-21 08:51:11 -0500 | [diff] [blame] | 9052 | if (ioa_cfg->in_reset_reload) { |
| 9053 | if (ioa_cfg->sdt_state == GET_DUMP) |
| 9054 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
| 9055 | else if (ioa_cfg->sdt_state == READ_DUMP) |
| 9056 | ioa_cfg->sdt_state = ABORT_DUMP; |
| 9057 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9058 | |
| 9059 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { |
| 9060 | dev_err(&ioa_cfg->pdev->dev, |
| 9061 | "IOA taken offline - error recovery failed\n"); |
| 9062 | |
| 9063 | ioa_cfg->reset_retries = 0; |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 9064 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 9065 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 9066 | ioa_cfg->hrrq[i].ioa_is_dead = 1; |
| 9067 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 9068 | } |
| 9069 | wmb(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9070 | |
| 9071 | if (ioa_cfg->in_ioa_bringdown) { |
| 9072 | ioa_cfg->reset_cmd = NULL; |
| 9073 | ioa_cfg->in_reset_reload = 0; |
| 9074 | ipr_fail_all_ops(ioa_cfg); |
| 9075 | wake_up_all(&ioa_cfg->reset_wait_q); |
| 9076 | |
Brian King | bfae782 | 2013-01-30 23:45:08 -0600 | [diff] [blame] | 9077 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
| 9078 | spin_unlock_irq(ioa_cfg->host->host_lock); |
| 9079 | scsi_unblock_requests(ioa_cfg->host); |
| 9080 | spin_lock_irq(ioa_cfg->host->host_lock); |
| 9081 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9082 | return; |
| 9083 | } else { |
| 9084 | ioa_cfg->in_ioa_bringdown = 1; |
| 9085 | shutdown_type = IPR_SHUTDOWN_NONE; |
| 9086 | } |
| 9087 | } |
| 9088 | |
| 9089 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, |
| 9090 | shutdown_type); |
| 9091 | } |
| 9092 | |
| 9093 | /** |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9094 | * ipr_reset_freeze - Hold off all I/O activity |
| 9095 | * @ipr_cmd: ipr command struct |
| 9096 | * |
| 9097 | * Description: If the PCI slot is frozen, hold off all I/O |
| 9098 | * activity; then, as soon as the slot is available again, |
| 9099 | * initiate an adapter reset. |
| 9100 | */ |
| 9101 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) |
| 9102 | { |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 9103 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
| 9104 | int i; |
| 9105 | |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9106 | /* Disallow new interrupts, avoid loop */ |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 9107 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 9108 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 9109 | ioa_cfg->hrrq[i].allow_interrupts = 0; |
| 9110 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 9111 | } |
| 9112 | wmb(); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9113 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9114 | ipr_cmd->done = ipr_reset_ioa_job; |
| 9115 | return IPR_RC_JOB_RETURN; |
| 9116 | } |
| 9117 | |
| 9118 | /** |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9119 | * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled |
| 9120 | * @pdev: PCI device struct |
| 9121 | * |
| 9122 | * Description: This routine is called to tell us that the MMIO |
| 9123 | * access to the IOA has been restored |
| 9124 | */ |
| 9125 | static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev) |
| 9126 | { |
| 9127 | unsigned long flags = 0; |
| 9128 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 9129 | |
| 9130 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
| 9131 | if (!ioa_cfg->probe_done) |
| 9132 | pci_save_state(pdev); |
| 9133 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 9134 | return PCI_ERS_RESULT_NEED_RESET; |
| 9135 | } |
| 9136 | |
| 9137 | /** |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9138 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. |
| 9139 | * @pdev: PCI device struct |
| 9140 | * |
| 9141 | * Description: This routine is called to tell us that the PCI bus |
| 9142 | * is down. Can't do anything here, except put the device driver |
| 9143 | * into a holding pattern, waiting for the PCI bus to come back. |
| 9144 | */ |
| 9145 | static void ipr_pci_frozen(struct pci_dev *pdev) |
| 9146 | { |
| 9147 | unsigned long flags = 0; |
| 9148 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 9149 | |
| 9150 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9151 | if (ioa_cfg->probe_done) |
| 9152 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9153 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 9154 | } |
| 9155 | |
| 9156 | /** |
| 9157 | * ipr_pci_slot_reset - Called when PCI slot has been reset. |
| 9158 | * @pdev: PCI device struct |
| 9159 | * |
| 9160 | * Description: This routine is called by the pci error recovery |
| 9161 | * code after the PCI slot has been reset, just before we |
| 9162 | * should resume normal operations. |
| 9163 | */ |
| 9164 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) |
| 9165 | { |
| 9166 | unsigned long flags = 0; |
| 9167 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 9168 | |
| 9169 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9170 | if (ioa_cfg->probe_done) { |
| 9171 | if (ioa_cfg->needs_warm_reset) |
| 9172 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 9173 | else |
| 9174 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, |
| 9175 | IPR_SHUTDOWN_NONE); |
| 9176 | } else |
| 9177 | wake_up_all(&ioa_cfg->eeh_wait_q); |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9178 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 9179 | return PCI_ERS_RESULT_RECOVERED; |
| 9180 | } |
| 9181 | |
| 9182 | /** |
| 9183 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. |
| 9184 | * @pdev: PCI device struct |
| 9185 | * |
| 9186 | * Description: This routine is called when the PCI bus has |
| 9187 | * permanently failed. |
| 9188 | */ |
| 9189 | static void ipr_pci_perm_failure(struct pci_dev *pdev) |
| 9190 | { |
| 9191 | unsigned long flags = 0; |
| 9192 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 9193 | int i; |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9194 | |
| 9195 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9196 | if (ioa_cfg->probe_done) { |
| 9197 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) |
| 9198 | ioa_cfg->sdt_state = ABORT_DUMP; |
| 9199 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1; |
| 9200 | ioa_cfg->in_ioa_bringdown = 1; |
| 9201 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 9202 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 9203 | ioa_cfg->hrrq[i].allow_cmds = 0; |
| 9204 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 9205 | } |
| 9206 | wmb(); |
| 9207 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 9208 | } else |
| 9209 | wake_up_all(&ioa_cfg->eeh_wait_q); |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9210 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 9211 | } |
| 9212 | |
| 9213 | /** |
| 9214 | * ipr_pci_error_detected - Called when a PCI error is detected. |
| 9215 | * @pdev: PCI device struct |
| 9216 | * @state: PCI channel state |
| 9217 | * |
| 9218 | * Description: Called when a PCI error is detected. |
| 9219 | * |
| 9220 | * Return value: |
| 9221 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT |
| 9222 | */ |
| 9223 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, |
| 9224 | pci_channel_state_t state) |
| 9225 | { |
| 9226 | switch (state) { |
| 9227 | case pci_channel_io_frozen: |
| 9228 | ipr_pci_frozen(pdev); |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9229 | return PCI_ERS_RESULT_CAN_RECOVER; |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 9230 | case pci_channel_io_perm_failure: |
| 9231 | ipr_pci_perm_failure(pdev); |
| 9232 | return PCI_ERS_RESULT_DISCONNECT; |
| 9233 | break; |
| 9234 | default: |
| 9235 | break; |
| 9236 | } |
| 9237 | return PCI_ERS_RESULT_NEED_RESET; |
| 9238 | } |
| 9239 | |
| 9240 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9241 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) |
| 9242 | * @ioa_cfg: ioa cfg struct |
| 9243 | * |
| 9244 | * Description: This is the second phase of adapter intialization |
| 9245 | * This function takes care of initilizing the adapter to the point |
| 9246 | * where it can accept new commands. |
| 9247 | |
| 9248 | * Return value: |
Joe Perches | b1c1181 | 2008-02-03 17:28:22 +0200 | [diff] [blame] | 9249 | * 0 on success / -EIO on failure |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9250 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 9251 | static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9252 | { |
| 9253 | int rc = 0; |
| 9254 | unsigned long host_lock_flags = 0; |
| 9255 | |
| 9256 | ENTER; |
| 9257 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
| 9258 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9259 | ioa_cfg->probe_done = 1; |
brking@us.ibm.com | ce155cc | 2005-11-17 09:35:12 -0600 | [diff] [blame] | 9260 | if (ioa_cfg->needs_hard_reset) { |
| 9261 | ioa_cfg->needs_hard_reset = 0; |
| 9262 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
| 9263 | } else |
| 9264 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, |
| 9265 | IPR_SHUTDOWN_NONE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9266 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9267 | |
| 9268 | LEAVE; |
| 9269 | return rc; |
| 9270 | } |
| 9271 | |
| 9272 | /** |
| 9273 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter |
| 9274 | * @ioa_cfg: ioa config struct |
| 9275 | * |
| 9276 | * Return value: |
| 9277 | * none |
| 9278 | **/ |
| 9279 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
| 9280 | { |
| 9281 | int i; |
| 9282 | |
Brian King | a65e8f1 | 2015-03-26 11:23:55 -0500 | [diff] [blame] | 9283 | if (ioa_cfg->ipr_cmnd_list) { |
| 9284 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
| 9285 | if (ioa_cfg->ipr_cmnd_list[i]) |
| 9286 | dma_pool_free(ioa_cfg->ipr_cmd_pool, |
| 9287 | ioa_cfg->ipr_cmnd_list[i], |
| 9288 | ioa_cfg->ipr_cmnd_list_dma[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9289 | |
Brian King | a65e8f1 | 2015-03-26 11:23:55 -0500 | [diff] [blame] | 9290 | ioa_cfg->ipr_cmnd_list[i] = NULL; |
| 9291 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9292 | } |
| 9293 | |
| 9294 | if (ioa_cfg->ipr_cmd_pool) |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9295 | dma_pool_destroy(ioa_cfg->ipr_cmd_pool); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9296 | |
Brian King | 89aad42 | 2012-03-14 21:20:10 -0500 | [diff] [blame] | 9297 | kfree(ioa_cfg->ipr_cmnd_list); |
| 9298 | kfree(ioa_cfg->ipr_cmnd_list_dma); |
| 9299 | ioa_cfg->ipr_cmnd_list = NULL; |
| 9300 | ioa_cfg->ipr_cmnd_list_dma = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9301 | ioa_cfg->ipr_cmd_pool = NULL; |
| 9302 | } |
| 9303 | |
| 9304 | /** |
| 9305 | * ipr_free_mem - Frees memory allocated for an adapter |
| 9306 | * @ioa_cfg: ioa cfg struct |
| 9307 | * |
| 9308 | * Return value: |
| 9309 | * nothing |
| 9310 | **/ |
| 9311 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) |
| 9312 | { |
| 9313 | int i; |
| 9314 | |
| 9315 | kfree(ioa_cfg->res_entries); |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9316 | dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs), |
| 9317 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9318 | ipr_free_cmd_blks(ioa_cfg); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9319 | |
| 9320 | for (i = 0; i < ioa_cfg->hrrq_num; i++) |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9321 | dma_free_coherent(&ioa_cfg->pdev->dev, |
| 9322 | sizeof(u32) * ioa_cfg->hrrq[i].size, |
| 9323 | ioa_cfg->hrrq[i].host_rrq, |
| 9324 | ioa_cfg->hrrq[i].host_rrq_dma); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9325 | |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9326 | dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size, |
| 9327 | ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9328 | |
| 9329 | for (i = 0; i < IPR_NUM_HCAMS; i++) { |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9330 | dma_free_coherent(&ioa_cfg->pdev->dev, |
| 9331 | sizeof(struct ipr_hostrcb), |
| 9332 | ioa_cfg->hostrcb[i], |
| 9333 | ioa_cfg->hostrcb_dma[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9334 | } |
| 9335 | |
| 9336 | ipr_free_dump(ioa_cfg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9337 | kfree(ioa_cfg->trace); |
| 9338 | } |
| 9339 | |
| 9340 | /** |
Brian King | 2796ca5 | 2015-03-26 11:23:52 -0500 | [diff] [blame] | 9341 | * ipr_free_irqs - Free all allocated IRQs for the adapter. |
| 9342 | * @ioa_cfg: ipr cfg struct |
| 9343 | * |
| 9344 | * This function frees all allocated IRQs for the |
| 9345 | * specified adapter. |
| 9346 | * |
| 9347 | * Return value: |
| 9348 | * none |
| 9349 | **/ |
| 9350 | static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg) |
| 9351 | { |
| 9352 | struct pci_dev *pdev = ioa_cfg->pdev; |
| 9353 | |
| 9354 | if (ioa_cfg->intr_flag == IPR_USE_MSI || |
| 9355 | ioa_cfg->intr_flag == IPR_USE_MSIX) { |
| 9356 | int i; |
| 9357 | for (i = 0; i < ioa_cfg->nvectors; i++) |
| 9358 | free_irq(ioa_cfg->vectors_info[i].vec, |
| 9359 | &ioa_cfg->hrrq[i]); |
| 9360 | } else |
| 9361 | free_irq(pdev->irq, &ioa_cfg->hrrq[0]); |
| 9362 | |
| 9363 | if (ioa_cfg->intr_flag == IPR_USE_MSI) { |
| 9364 | pci_disable_msi(pdev); |
| 9365 | ioa_cfg->intr_flag &= ~IPR_USE_MSI; |
| 9366 | } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) { |
| 9367 | pci_disable_msix(pdev); |
| 9368 | ioa_cfg->intr_flag &= ~IPR_USE_MSIX; |
| 9369 | } |
| 9370 | } |
| 9371 | |
| 9372 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9373 | * ipr_free_all_resources - Free all allocated resources for an adapter. |
| 9374 | * @ipr_cmd: ipr command struct |
| 9375 | * |
| 9376 | * This function frees all allocated resources for the |
| 9377 | * specified adapter. |
| 9378 | * |
| 9379 | * Return value: |
| 9380 | * none |
| 9381 | **/ |
| 9382 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) |
| 9383 | { |
| 9384 | struct pci_dev *pdev = ioa_cfg->pdev; |
| 9385 | |
| 9386 | ENTER; |
Brian King | 2796ca5 | 2015-03-26 11:23:52 -0500 | [diff] [blame] | 9387 | ipr_free_irqs(ioa_cfg); |
| 9388 | if (ioa_cfg->reset_work_q) |
| 9389 | destroy_workqueue(ioa_cfg->reset_work_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9390 | iounmap(ioa_cfg->hdw_dma_regs); |
| 9391 | pci_release_regions(pdev); |
| 9392 | ipr_free_mem(ioa_cfg); |
| 9393 | scsi_host_put(ioa_cfg->host); |
| 9394 | pci_disable_device(pdev); |
| 9395 | LEAVE; |
| 9396 | } |
| 9397 | |
| 9398 | /** |
| 9399 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter |
| 9400 | * @ioa_cfg: ioa config struct |
| 9401 | * |
| 9402 | * Return value: |
| 9403 | * 0 on success / -ENOMEM on allocation failure |
| 9404 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 9405 | static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9406 | { |
| 9407 | struct ipr_cmnd *ipr_cmd; |
| 9408 | struct ipr_ioarcb *ioarcb; |
| 9409 | dma_addr_t dma_addr; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9410 | int i, entries_each_hrrq, hrrq_id = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9411 | |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9412 | ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev, |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 9413 | sizeof(struct ipr_cmnd), 512, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9414 | |
| 9415 | if (!ioa_cfg->ipr_cmd_pool) |
| 9416 | return -ENOMEM; |
| 9417 | |
Brian King | 89aad42 | 2012-03-14 21:20:10 -0500 | [diff] [blame] | 9418 | ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL); |
| 9419 | ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL); |
| 9420 | |
| 9421 | if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) { |
| 9422 | ipr_free_cmd_blks(ioa_cfg); |
| 9423 | return -ENOMEM; |
| 9424 | } |
| 9425 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9426 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 9427 | if (ioa_cfg->hrrq_num > 1) { |
| 9428 | if (i == 0) { |
| 9429 | entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS; |
| 9430 | ioa_cfg->hrrq[i].min_cmd_id = 0; |
| 9431 | ioa_cfg->hrrq[i].max_cmd_id = |
| 9432 | (entries_each_hrrq - 1); |
| 9433 | } else { |
| 9434 | entries_each_hrrq = |
| 9435 | IPR_NUM_BASE_CMD_BLKS/ |
| 9436 | (ioa_cfg->hrrq_num - 1); |
| 9437 | ioa_cfg->hrrq[i].min_cmd_id = |
| 9438 | IPR_NUM_INTERNAL_CMD_BLKS + |
| 9439 | (i - 1) * entries_each_hrrq; |
| 9440 | ioa_cfg->hrrq[i].max_cmd_id = |
| 9441 | (IPR_NUM_INTERNAL_CMD_BLKS + |
| 9442 | i * entries_each_hrrq - 1); |
| 9443 | } |
| 9444 | } else { |
| 9445 | entries_each_hrrq = IPR_NUM_CMD_BLKS; |
| 9446 | ioa_cfg->hrrq[i].min_cmd_id = 0; |
| 9447 | ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1); |
| 9448 | } |
| 9449 | ioa_cfg->hrrq[i].size = entries_each_hrrq; |
| 9450 | } |
| 9451 | |
| 9452 | BUG_ON(ioa_cfg->hrrq_num == 0); |
| 9453 | |
| 9454 | i = IPR_NUM_CMD_BLKS - |
| 9455 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1; |
| 9456 | if (i > 0) { |
| 9457 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i; |
| 9458 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i; |
| 9459 | } |
| 9460 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9461 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9462 | ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9463 | |
| 9464 | if (!ipr_cmd) { |
| 9465 | ipr_free_cmd_blks(ioa_cfg); |
| 9466 | return -ENOMEM; |
| 9467 | } |
| 9468 | |
| 9469 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); |
| 9470 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; |
| 9471 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; |
| 9472 | |
| 9473 | ioarcb = &ipr_cmd->ioarcb; |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 9474 | ipr_cmd->dma_addr = dma_addr; |
| 9475 | if (ioa_cfg->sis64) |
| 9476 | ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); |
| 9477 | else |
| 9478 | ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); |
| 9479 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9480 | ioarcb->host_response_handle = cpu_to_be32(i << 2); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 9481 | if (ioa_cfg->sis64) { |
| 9482 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
| 9483 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
| 9484 | ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 9485 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 9486 | } else { |
| 9487 | ioarcb->write_ioadl_addr = |
| 9488 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
| 9489 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
| 9490 | ioarcb->ioasa_host_pci_addr = |
Wayne Boyer | 96d21f0 | 2010-05-10 09:13:27 -0700 | [diff] [blame] | 9491 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 9492 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9493 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); |
| 9494 | ipr_cmd->cmd_index = i; |
| 9495 | ipr_cmd->ioa_cfg = ioa_cfg; |
| 9496 | ipr_cmd->sense_buffer_dma = dma_addr + |
| 9497 | offsetof(struct ipr_cmnd, sense_buffer); |
| 9498 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9499 | ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id; |
| 9500 | ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id]; |
| 9501 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
| 9502 | if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id) |
| 9503 | hrrq_id++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9504 | } |
| 9505 | |
| 9506 | return 0; |
| 9507 | } |
| 9508 | |
| 9509 | /** |
| 9510 | * ipr_alloc_mem - Allocate memory for an adapter |
| 9511 | * @ioa_cfg: ioa config struct |
| 9512 | * |
| 9513 | * Return value: |
| 9514 | * 0 on success / non-zero for error |
| 9515 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 9516 | static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9517 | { |
| 9518 | struct pci_dev *pdev = ioa_cfg->pdev; |
| 9519 | int i, rc = -ENOMEM; |
| 9520 | |
| 9521 | ENTER; |
brking@us.ibm.com | 0bc42e3 | 2005-11-01 17:01:20 -0600 | [diff] [blame] | 9522 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 9523 | ioa_cfg->max_devs_supported, GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9524 | |
| 9525 | if (!ioa_cfg->res_entries) |
| 9526 | goto out; |
| 9527 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 9528 | for (i = 0; i < ioa_cfg->max_devs_supported; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9529 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 9530 | ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; |
| 9531 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9532 | |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9533 | ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev, |
| 9534 | sizeof(struct ipr_misc_cbs), |
| 9535 | &ioa_cfg->vpd_cbs_dma, |
| 9536 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9537 | |
| 9538 | if (!ioa_cfg->vpd_cbs) |
| 9539 | goto out_free_res_entries; |
| 9540 | |
| 9541 | if (ipr_alloc_cmd_blks(ioa_cfg)) |
| 9542 | goto out_free_vpd_cbs; |
| 9543 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9544 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9545 | ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev, |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9546 | sizeof(u32) * ioa_cfg->hrrq[i].size, |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9547 | &ioa_cfg->hrrq[i].host_rrq_dma, |
| 9548 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9549 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9550 | if (!ioa_cfg->hrrq[i].host_rrq) { |
| 9551 | while (--i > 0) |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9552 | dma_free_coherent(&pdev->dev, |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9553 | sizeof(u32) * ioa_cfg->hrrq[i].size, |
| 9554 | ioa_cfg->hrrq[i].host_rrq, |
| 9555 | ioa_cfg->hrrq[i].host_rrq_dma); |
| 9556 | goto out_ipr_free_cmd_blocks; |
| 9557 | } |
| 9558 | ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg; |
| 9559 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9560 | |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9561 | ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev, |
| 9562 | ioa_cfg->cfg_table_size, |
| 9563 | &ioa_cfg->cfg_table_dma, |
| 9564 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9565 | |
Wayne Boyer | 3e7ebdf | 2010-02-19 13:23:59 -0800 | [diff] [blame] | 9566 | if (!ioa_cfg->u.cfg_table) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9567 | goto out_free_host_rrq; |
| 9568 | |
| 9569 | for (i = 0; i < IPR_NUM_HCAMS; i++) { |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9570 | ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev, |
| 9571 | sizeof(struct ipr_hostrcb), |
| 9572 | &ioa_cfg->hostrcb_dma[i], |
| 9573 | GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9574 | |
| 9575 | if (!ioa_cfg->hostrcb[i]) |
| 9576 | goto out_free_hostrcb_dma; |
| 9577 | |
| 9578 | ioa_cfg->hostrcb[i]->hostrcb_dma = |
| 9579 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); |
Brian King | 49dc6a1 | 2006-11-21 10:28:35 -0600 | [diff] [blame] | 9580 | ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9581 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); |
| 9582 | } |
| 9583 | |
brking@us.ibm.com | 0bc42e3 | 2005-11-01 17:01:20 -0600 | [diff] [blame] | 9584 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9585 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
| 9586 | |
| 9587 | if (!ioa_cfg->trace) |
| 9588 | goto out_free_hostrcb_dma; |
| 9589 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9590 | rc = 0; |
| 9591 | out: |
| 9592 | LEAVE; |
| 9593 | return rc; |
| 9594 | |
| 9595 | out_free_hostrcb_dma: |
| 9596 | while (i-- > 0) { |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9597 | dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb), |
| 9598 | ioa_cfg->hostrcb[i], |
| 9599 | ioa_cfg->hostrcb_dma[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9600 | } |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9601 | dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size, |
| 9602 | ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9603 | out_free_host_rrq: |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9604 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9605 | dma_free_coherent(&pdev->dev, |
| 9606 | sizeof(u32) * ioa_cfg->hrrq[i].size, |
| 9607 | ioa_cfg->hrrq[i].host_rrq, |
| 9608 | ioa_cfg->hrrq[i].host_rrq_dma); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9609 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9610 | out_ipr_free_cmd_blocks: |
| 9611 | ipr_free_cmd_blks(ioa_cfg); |
| 9612 | out_free_vpd_cbs: |
Anton Blanchard | d73341b | 2014-10-30 17:27:08 -0500 | [diff] [blame] | 9613 | dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs), |
| 9614 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9615 | out_free_res_entries: |
| 9616 | kfree(ioa_cfg->res_entries); |
| 9617 | goto out; |
| 9618 | } |
| 9619 | |
| 9620 | /** |
| 9621 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values |
| 9622 | * @ioa_cfg: ioa config struct |
| 9623 | * |
| 9624 | * Return value: |
| 9625 | * none |
| 9626 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 9627 | static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9628 | { |
| 9629 | int i; |
| 9630 | |
| 9631 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { |
| 9632 | ioa_cfg->bus_attr[i].bus = i; |
| 9633 | ioa_cfg->bus_attr[i].qas_enabled = 0; |
| 9634 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; |
| 9635 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) |
| 9636 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; |
| 9637 | else |
| 9638 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; |
| 9639 | } |
| 9640 | } |
| 9641 | |
| 9642 | /** |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9643 | * ipr_init_regs - Initialize IOA registers |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9644 | * @ioa_cfg: ioa config struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9645 | * |
| 9646 | * Return value: |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9647 | * none |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9648 | **/ |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9649 | static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9650 | { |
| 9651 | const struct ipr_interrupt_offsets *p; |
| 9652 | struct ipr_interrupts *t; |
| 9653 | void __iomem *base; |
| 9654 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9655 | p = &ioa_cfg->chip_cfg->regs; |
| 9656 | t = &ioa_cfg->regs; |
| 9657 | base = ioa_cfg->hdw_dma_regs; |
| 9658 | |
| 9659 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; |
| 9660 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9661 | t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9662 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9663 | t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9664 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9665 | t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9666 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9667 | t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9668 | t->ioarrin_reg = base + p->ioarrin_reg; |
| 9669 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9670 | t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9671 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9672 | t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9673 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9674 | t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 9675 | |
| 9676 | if (ioa_cfg->sis64) { |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9677 | t->init_feedback_reg = base + p->init_feedback_reg; |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 9678 | t->dump_addr_reg = base + p->dump_addr_reg; |
| 9679 | t->dump_data_reg = base + p->dump_data_reg; |
Wayne Boyer | 8701f18 | 2010-06-04 10:26:50 -0700 | [diff] [blame] | 9680 | t->endian_swap_reg = base + p->endian_swap_reg; |
Wayne Boyer | dcbad00 | 2010-02-19 13:24:14 -0800 | [diff] [blame] | 9681 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9682 | } |
| 9683 | |
| 9684 | /** |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9685 | * ipr_init_ioa_cfg - Initialize IOA config struct |
| 9686 | * @ioa_cfg: ioa config struct |
| 9687 | * @host: scsi host struct |
| 9688 | * @pdev: PCI dev struct |
| 9689 | * |
| 9690 | * Return value: |
| 9691 | * none |
| 9692 | **/ |
| 9693 | static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, |
| 9694 | struct Scsi_Host *host, struct pci_dev *pdev) |
| 9695 | { |
| 9696 | int i; |
| 9697 | |
| 9698 | ioa_cfg->host = host; |
| 9699 | ioa_cfg->pdev = pdev; |
| 9700 | ioa_cfg->log_level = ipr_log_level; |
| 9701 | ioa_cfg->doorbell = IPR_DOORBELL; |
| 9702 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); |
| 9703 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); |
| 9704 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); |
| 9705 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); |
| 9706 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); |
| 9707 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); |
| 9708 | |
| 9709 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); |
| 9710 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); |
| 9711 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); |
| 9712 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); |
| 9713 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); |
| 9714 | init_waitqueue_head(&ioa_cfg->reset_wait_q); |
| 9715 | init_waitqueue_head(&ioa_cfg->msi_wait_q); |
| 9716 | init_waitqueue_head(&ioa_cfg->eeh_wait_q); |
| 9717 | ioa_cfg->sdt_state = INACTIVE; |
| 9718 | |
| 9719 | ipr_initialize_bus_attr(ioa_cfg); |
| 9720 | ioa_cfg->max_devs_supported = ipr_max_devs; |
| 9721 | |
| 9722 | if (ioa_cfg->sis64) { |
| 9723 | host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; |
| 9724 | host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; |
| 9725 | if (ipr_max_devs > IPR_MAX_SIS64_DEVS) |
| 9726 | ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; |
| 9727 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) |
| 9728 | + ((sizeof(struct ipr_config_table_entry64) |
| 9729 | * ioa_cfg->max_devs_supported))); |
| 9730 | } else { |
| 9731 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; |
| 9732 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; |
| 9733 | if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) |
| 9734 | ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; |
| 9735 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) |
| 9736 | + ((sizeof(struct ipr_config_table_entry) |
| 9737 | * ioa_cfg->max_devs_supported))); |
| 9738 | } |
| 9739 | |
Brian King | f688f96 | 2014-12-02 12:47:37 -0600 | [diff] [blame] | 9740 | host->max_channel = IPR_VSET_BUS; |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9741 | host->unique_id = host->host_no; |
| 9742 | host->max_cmd_len = IPR_MAX_CDB_LEN; |
| 9743 | host->can_queue = ioa_cfg->max_cmds; |
| 9744 | pci_set_drvdata(pdev, ioa_cfg); |
| 9745 | |
| 9746 | for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) { |
| 9747 | INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q); |
| 9748 | INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q); |
| 9749 | spin_lock_init(&ioa_cfg->hrrq[i]._lock); |
| 9750 | if (i == 0) |
| 9751 | ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock; |
| 9752 | else |
| 9753 | ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock; |
| 9754 | } |
| 9755 | } |
| 9756 | |
| 9757 | /** |
Wayne Boyer | 1be7bd8 | 2009-06-17 09:55:35 -0700 | [diff] [blame] | 9758 | * ipr_get_chip_info - Find adapter chip information |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9759 | * @dev_id: PCI device id struct |
| 9760 | * |
| 9761 | * Return value: |
Wayne Boyer | 1be7bd8 | 2009-06-17 09:55:35 -0700 | [diff] [blame] | 9762 | * ptr to chip information on success / NULL on failure |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9763 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 9764 | static const struct ipr_chip_t * |
Wayne Boyer | 1be7bd8 | 2009-06-17 09:55:35 -0700 | [diff] [blame] | 9765 | ipr_get_chip_info(const struct pci_device_id *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9766 | { |
| 9767 | int i; |
| 9768 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9769 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) |
| 9770 | if (ipr_chip[i].vendor == dev_id->vendor && |
| 9771 | ipr_chip[i].device == dev_id->device) |
Wayne Boyer | 1be7bd8 | 2009-06-17 09:55:35 -0700 | [diff] [blame] | 9772 | return &ipr_chip[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9773 | return NULL; |
| 9774 | } |
| 9775 | |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9776 | /** |
| 9777 | * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete |
| 9778 | * during probe time |
| 9779 | * @ioa_cfg: ioa config struct |
| 9780 | * |
| 9781 | * Return value: |
| 9782 | * None |
| 9783 | **/ |
| 9784 | static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg) |
| 9785 | { |
| 9786 | struct pci_dev *pdev = ioa_cfg->pdev; |
| 9787 | |
| 9788 | if (pci_channel_offline(pdev)) { |
| 9789 | wait_event_timeout(ioa_cfg->eeh_wait_q, |
| 9790 | !pci_channel_offline(pdev), |
| 9791 | IPR_PCI_ERROR_RECOVERY_TIMEOUT); |
| 9792 | pci_restore_state(pdev); |
| 9793 | } |
| 9794 | } |
| 9795 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9796 | static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg) |
| 9797 | { |
| 9798 | struct msix_entry entries[IPR_MAX_MSIX_VECTORS]; |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9799 | int i, vectors; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9800 | |
| 9801 | for (i = 0; i < ARRAY_SIZE(entries); ++i) |
| 9802 | entries[i].entry = i; |
| 9803 | |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9804 | vectors = pci_enable_msix_range(ioa_cfg->pdev, |
| 9805 | entries, 1, ipr_number_of_msix); |
| 9806 | if (vectors < 0) { |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9807 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9808 | return vectors; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9809 | } |
| 9810 | |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9811 | for (i = 0; i < vectors; i++) |
| 9812 | ioa_cfg->vectors_info[i].vec = entries[i].vector; |
| 9813 | ioa_cfg->nvectors = vectors; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9814 | |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9815 | return 0; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9816 | } |
| 9817 | |
| 9818 | static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg) |
| 9819 | { |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9820 | int i, vectors; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9821 | |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9822 | vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix); |
| 9823 | if (vectors < 0) { |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9824 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9825 | return vectors; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9826 | } |
| 9827 | |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9828 | for (i = 0; i < vectors; i++) |
| 9829 | ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i; |
| 9830 | ioa_cfg->nvectors = vectors; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9831 | |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9832 | return 0; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9833 | } |
| 9834 | |
| 9835 | static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg) |
| 9836 | { |
| 9837 | int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1; |
| 9838 | |
| 9839 | for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) { |
| 9840 | snprintf(ioa_cfg->vectors_info[vec_idx].desc, n, |
| 9841 | "host%d-%d", ioa_cfg->host->host_no, vec_idx); |
| 9842 | ioa_cfg->vectors_info[vec_idx]. |
| 9843 | desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0; |
| 9844 | } |
| 9845 | } |
| 9846 | |
| 9847 | static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg) |
| 9848 | { |
| 9849 | int i, rc; |
| 9850 | |
| 9851 | for (i = 1; i < ioa_cfg->nvectors; i++) { |
| 9852 | rc = request_irq(ioa_cfg->vectors_info[i].vec, |
| 9853 | ipr_isr_mhrrq, |
| 9854 | 0, |
| 9855 | ioa_cfg->vectors_info[i].desc, |
| 9856 | &ioa_cfg->hrrq[i]); |
| 9857 | if (rc) { |
| 9858 | while (--i >= 0) |
| 9859 | free_irq(ioa_cfg->vectors_info[i].vec, |
| 9860 | &ioa_cfg->hrrq[i]); |
| 9861 | return rc; |
| 9862 | } |
| 9863 | } |
| 9864 | return 0; |
| 9865 | } |
| 9866 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9867 | /** |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9868 | * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). |
| 9869 | * @pdev: PCI device struct |
| 9870 | * |
| 9871 | * Description: Simply set the msi_received flag to 1 indicating that |
| 9872 | * Message Signaled Interrupts are supported. |
| 9873 | * |
| 9874 | * Return value: |
| 9875 | * 0 on success / non-zero on failure |
| 9876 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 9877 | static irqreturn_t ipr_test_intr(int irq, void *devp) |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9878 | { |
| 9879 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; |
| 9880 | unsigned long lock_flags = 0; |
| 9881 | irqreturn_t rc = IRQ_HANDLED; |
| 9882 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9883 | dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq); |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9884 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 9885 | |
| 9886 | ioa_cfg->msi_received = 1; |
| 9887 | wake_up(&ioa_cfg->msi_wait_q); |
| 9888 | |
| 9889 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 9890 | return rc; |
| 9891 | } |
| 9892 | |
| 9893 | /** |
| 9894 | * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. |
| 9895 | * @pdev: PCI device struct |
| 9896 | * |
Alexander Gordeev | 60e76b7 | 2014-03-12 16:08:50 -0500 | [diff] [blame] | 9897 | * Description: The return value from pci_enable_msi_range() can not always be |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9898 | * trusted. This routine sets up and initiates a test interrupt to determine |
| 9899 | * if the interrupt is received via the ipr_test_intr() service routine. |
| 9900 | * If the tests fails, the driver will fall back to LSI. |
| 9901 | * |
| 9902 | * Return value: |
| 9903 | * 0 on success / non-zero on failure |
| 9904 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 9905 | static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev) |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9906 | { |
| 9907 | int rc; |
| 9908 | volatile u32 int_reg; |
| 9909 | unsigned long lock_flags = 0; |
| 9910 | |
| 9911 | ENTER; |
| 9912 | |
| 9913 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 9914 | init_waitqueue_head(&ioa_cfg->msi_wait_q); |
| 9915 | ioa_cfg->msi_received = 0; |
| 9916 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9917 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9918 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
| 9919 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 9920 | |
wenxiong@linux.vnet.ibm.com | f19799f | 2013-02-27 12:37:45 -0600 | [diff] [blame] | 9921 | if (ioa_cfg->intr_flag == IPR_USE_MSIX) |
| 9922 | rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg); |
| 9923 | else |
| 9924 | rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9925 | if (rc) { |
| 9926 | dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); |
| 9927 | return rc; |
| 9928 | } else if (ipr_debug) |
| 9929 | dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); |
| 9930 | |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 9931 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9932 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 9933 | wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 9934 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9935 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
| 9936 | |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9937 | if (!ioa_cfg->msi_received) { |
| 9938 | /* MSI test failed */ |
| 9939 | dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); |
| 9940 | rc = -EOPNOTSUPP; |
| 9941 | } else if (ipr_debug) |
| 9942 | dev_info(&pdev->dev, "MSI test succeeded.\n"); |
| 9943 | |
| 9944 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 9945 | |
wenxiong@linux.vnet.ibm.com | f19799f | 2013-02-27 12:37:45 -0600 | [diff] [blame] | 9946 | if (ioa_cfg->intr_flag == IPR_USE_MSIX) |
| 9947 | free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg); |
| 9948 | else |
| 9949 | free_irq(pdev->irq, ioa_cfg); |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 9950 | |
| 9951 | LEAVE; |
| 9952 | |
| 9953 | return rc; |
| 9954 | } |
| 9955 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 9956 | /* ipr_probe_ioa - Allocates memory and does first stage of initialization |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9957 | * @pdev: PCI device struct |
| 9958 | * @dev_id: PCI device id struct |
| 9959 | * |
| 9960 | * Return value: |
| 9961 | * 0 on success / non-zero on failure |
| 9962 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 9963 | static int ipr_probe_ioa(struct pci_dev *pdev, |
| 9964 | const struct pci_device_id *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9965 | { |
| 9966 | struct ipr_ioa_cfg *ioa_cfg; |
| 9967 | struct Scsi_Host *host; |
| 9968 | unsigned long ipr_regs_pci; |
| 9969 | void __iomem *ipr_regs; |
Eric Sesterhenn | a2a65a3 | 2006-09-25 16:59:07 -0700 | [diff] [blame] | 9970 | int rc = PCIBIOS_SUCCESSFUL; |
Brian King | 473b1e8 | 2007-05-02 10:44:11 -0500 | [diff] [blame] | 9971 | volatile u32 mask, uproc, interrupts; |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 9972 | unsigned long lock_flags, driver_lock_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9973 | |
| 9974 | ENTER; |
| 9975 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9976 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9977 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); |
| 9978 | |
| 9979 | if (!host) { |
| 9980 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); |
| 9981 | rc = -ENOMEM; |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 9982 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9983 | } |
| 9984 | |
| 9985 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; |
| 9986 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); |
Dan Williams | 8d8e7d1 | 2012-07-09 21:06:08 -0700 | [diff] [blame] | 9987 | ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9988 | |
Wayne Boyer | 1be7bd8 | 2009-06-17 09:55:35 -0700 | [diff] [blame] | 9989 | ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9990 | |
Wayne Boyer | 1be7bd8 | 2009-06-17 09:55:35 -0700 | [diff] [blame] | 9991 | if (!ioa_cfg->ipr_chip) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9992 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", |
| 9993 | dev_id->vendor, dev_id->device); |
| 9994 | goto out_scsi_host_put; |
| 9995 | } |
| 9996 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 9997 | /* set SIS 32 or SIS 64 */ |
| 9998 | ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; |
Wayne Boyer | 1be7bd8 | 2009-06-17 09:55:35 -0700 | [diff] [blame] | 9999 | ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; |
Brian King | 7dd2130 | 2012-03-14 21:20:08 -0500 | [diff] [blame] | 10000 | ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr; |
Brian King | 89aad42 | 2012-03-14 21:20:10 -0500 | [diff] [blame] | 10001 | ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds; |
Wayne Boyer | 1be7bd8 | 2009-06-17 09:55:35 -0700 | [diff] [blame] | 10002 | |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 10003 | if (ipr_transop_timeout) |
| 10004 | ioa_cfg->transop_timeout = ipr_transop_timeout; |
| 10005 | else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) |
| 10006 | ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; |
| 10007 | else |
| 10008 | ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; |
| 10009 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 10010 | ioa_cfg->revid = pdev->revision; |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 10011 | |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10012 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); |
| 10013 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10014 | ipr_regs_pci = pci_resource_start(pdev, 0); |
| 10015 | |
| 10016 | rc = pci_request_regions(pdev, IPR_NAME); |
| 10017 | if (rc < 0) { |
| 10018 | dev_err(&pdev->dev, |
| 10019 | "Couldn't register memory range of registers\n"); |
| 10020 | goto out_scsi_host_put; |
| 10021 | } |
| 10022 | |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10023 | rc = pci_enable_device(pdev); |
| 10024 | |
| 10025 | if (rc || pci_channel_offline(pdev)) { |
| 10026 | if (pci_channel_offline(pdev)) { |
| 10027 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
| 10028 | rc = pci_enable_device(pdev); |
| 10029 | } |
| 10030 | |
| 10031 | if (rc) { |
| 10032 | dev_err(&pdev->dev, "Cannot enable adapter\n"); |
| 10033 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
| 10034 | goto out_release_regions; |
| 10035 | } |
| 10036 | } |
| 10037 | |
Arjan van de Ven | 25729a7 | 2008-09-28 16:18:02 -0700 | [diff] [blame] | 10038 | ipr_regs = pci_ioremap_bar(pdev, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10039 | |
| 10040 | if (!ipr_regs) { |
| 10041 | dev_err(&pdev->dev, |
| 10042 | "Couldn't map memory range of registers\n"); |
| 10043 | rc = -ENOMEM; |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10044 | goto out_disable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10045 | } |
| 10046 | |
| 10047 | ioa_cfg->hdw_dma_regs = ipr_regs; |
| 10048 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; |
| 10049 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; |
| 10050 | |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10051 | ipr_init_regs(ioa_cfg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10052 | |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 10053 | if (ioa_cfg->sis64) { |
Anton Blanchard | 869404c | 2014-10-30 17:27:09 -0500 | [diff] [blame] | 10054 | rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 10055 | if (rc < 0) { |
Anton Blanchard | 869404c | 2014-10-30 17:27:09 -0500 | [diff] [blame] | 10056 | dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n"); |
| 10057 | rc = dma_set_mask_and_coherent(&pdev->dev, |
| 10058 | DMA_BIT_MASK(32)); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 10059 | } |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 10060 | } else |
Anton Blanchard | 869404c | 2014-10-30 17:27:09 -0500 | [diff] [blame] | 10061 | rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); |
Wayne Boyer | a32c055 | 2010-02-19 13:23:36 -0800 | [diff] [blame] | 10062 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10063 | if (rc < 0) { |
Anton Blanchard | 869404c | 2014-10-30 17:27:09 -0500 | [diff] [blame] | 10064 | dev_err(&pdev->dev, "Failed to set DMA mask\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10065 | goto cleanup_nomem; |
| 10066 | } |
| 10067 | |
| 10068 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, |
| 10069 | ioa_cfg->chip_cfg->cache_line_size); |
| 10070 | |
| 10071 | if (rc != PCIBIOS_SUCCESSFUL) { |
| 10072 | dev_err(&pdev->dev, "Write of cache line size failed\n"); |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10073 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10074 | rc = -EIO; |
| 10075 | goto cleanup_nomem; |
| 10076 | } |
| 10077 | |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10078 | /* Issue MMIO read to ensure card is not in EEH */ |
| 10079 | interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); |
| 10080 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
| 10081 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10082 | if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) { |
| 10083 | dev_err(&pdev->dev, "The max number of MSIX is %d\n", |
| 10084 | IPR_MAX_MSIX_VECTORS); |
| 10085 | ipr_number_of_msix = IPR_MAX_MSIX_VECTORS; |
| 10086 | } |
| 10087 | |
| 10088 | if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 10089 | ipr_enable_msix(ioa_cfg) == 0) |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10090 | ioa_cfg->intr_flag = IPR_USE_MSIX; |
| 10091 | else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 10092 | ipr_enable_msi(ioa_cfg) == 0) |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10093 | ioa_cfg->intr_flag = IPR_USE_MSI; |
| 10094 | else { |
| 10095 | ioa_cfg->intr_flag = IPR_USE_LSI; |
| 10096 | ioa_cfg->nvectors = 1; |
| 10097 | dev_info(&pdev->dev, "Cannot enable MSI.\n"); |
| 10098 | } |
| 10099 | |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10100 | pci_set_master(pdev); |
| 10101 | |
| 10102 | if (pci_channel_offline(pdev)) { |
| 10103 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
| 10104 | pci_set_master(pdev); |
| 10105 | if (pci_channel_offline(pdev)) { |
| 10106 | rc = -EIO; |
| 10107 | goto out_msi_disable; |
| 10108 | } |
| 10109 | } |
| 10110 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10111 | if (ioa_cfg->intr_flag == IPR_USE_MSI || |
| 10112 | ioa_cfg->intr_flag == IPR_USE_MSIX) { |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 10113 | rc = ipr_test_msi(ioa_cfg, pdev); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10114 | if (rc == -EOPNOTSUPP) { |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10115 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10116 | if (ioa_cfg->intr_flag == IPR_USE_MSI) { |
| 10117 | ioa_cfg->intr_flag &= ~IPR_USE_MSI; |
| 10118 | pci_disable_msi(pdev); |
| 10119 | } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) { |
| 10120 | ioa_cfg->intr_flag &= ~IPR_USE_MSIX; |
| 10121 | pci_disable_msix(pdev); |
| 10122 | } |
| 10123 | |
| 10124 | ioa_cfg->intr_flag = IPR_USE_LSI; |
| 10125 | ioa_cfg->nvectors = 1; |
| 10126 | } |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 10127 | else if (rc) |
| 10128 | goto out_msi_disable; |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10129 | else { |
| 10130 | if (ioa_cfg->intr_flag == IPR_USE_MSI) |
| 10131 | dev_info(&pdev->dev, |
| 10132 | "Request for %d MSIs succeeded with starting IRQ: %d\n", |
| 10133 | ioa_cfg->nvectors, pdev->irq); |
| 10134 | else if (ioa_cfg->intr_flag == IPR_USE_MSIX) |
| 10135 | dev_info(&pdev->dev, |
| 10136 | "Request for %d MSIXs succeeded.", |
| 10137 | ioa_cfg->nvectors); |
| 10138 | } |
| 10139 | } |
| 10140 | |
| 10141 | ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors, |
| 10142 | (unsigned int)num_online_cpus(), |
| 10143 | (unsigned int)IPR_MAX_HRRQ_NUM); |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 10144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10145 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) |
Julia Lawall | f170c68 | 2011-07-11 14:08:25 -0700 | [diff] [blame] | 10146 | goto out_msi_disable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10147 | |
| 10148 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) |
Julia Lawall | f170c68 | 2011-07-11 14:08:25 -0700 | [diff] [blame] | 10149 | goto out_msi_disable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10150 | |
| 10151 | rc = ipr_alloc_mem(ioa_cfg); |
| 10152 | if (rc < 0) { |
| 10153 | dev_err(&pdev->dev, |
| 10154 | "Couldn't allocate enough memory for device driver!\n"); |
Julia Lawall | f170c68 | 2011-07-11 14:08:25 -0700 | [diff] [blame] | 10155 | goto out_msi_disable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10156 | } |
| 10157 | |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10158 | /* Save away PCI config space for use following IOA reset */ |
| 10159 | rc = pci_save_state(pdev); |
| 10160 | |
| 10161 | if (rc != PCIBIOS_SUCCESSFUL) { |
| 10162 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); |
| 10163 | rc = -EIO; |
| 10164 | goto cleanup_nolog; |
| 10165 | } |
| 10166 | |
brking@us.ibm.com | ce155cc | 2005-11-17 09:35:12 -0600 | [diff] [blame] | 10167 | /* |
| 10168 | * If HRRQ updated interrupt is not masked, or reset alert is set, |
| 10169 | * the card is in an unknown state and needs a hard reset |
| 10170 | */ |
Wayne Boyer | 214777b | 2010-02-19 13:24:26 -0800 | [diff] [blame] | 10171 | mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); |
| 10172 | interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); |
| 10173 | uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); |
brking@us.ibm.com | ce155cc | 2005-11-17 09:35:12 -0600 | [diff] [blame] | 10174 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) |
| 10175 | ioa_cfg->needs_hard_reset = 1; |
Anton Blanchard | 5d7c20b | 2011-08-01 19:43:45 +1000 | [diff] [blame] | 10176 | if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices) |
Brian King | 473b1e8 | 2007-05-02 10:44:11 -0500 | [diff] [blame] | 10177 | ioa_cfg->needs_hard_reset = 1; |
| 10178 | if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) |
| 10179 | ioa_cfg->ioa_unit_checked = 1; |
brking@us.ibm.com | ce155cc | 2005-11-17 09:35:12 -0600 | [diff] [blame] | 10180 | |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 10181 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10182 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
wenxiong@linux.vnet.ibm.com | 56d6aa3 | 2013-01-11 17:43:51 -0600 | [diff] [blame] | 10183 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10184 | |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10185 | if (ioa_cfg->intr_flag == IPR_USE_MSI |
| 10186 | || ioa_cfg->intr_flag == IPR_USE_MSIX) { |
| 10187 | name_msi_vectors(ioa_cfg); |
| 10188 | rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr, |
| 10189 | 0, |
| 10190 | ioa_cfg->vectors_info[0].desc, |
| 10191 | &ioa_cfg->hrrq[0]); |
| 10192 | if (!rc) |
| 10193 | rc = ipr_request_other_msi_irqs(ioa_cfg); |
| 10194 | } else { |
| 10195 | rc = request_irq(pdev->irq, ipr_isr, |
| 10196 | IRQF_SHARED, |
| 10197 | IPR_NAME, &ioa_cfg->hrrq[0]); |
| 10198 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10199 | if (rc) { |
| 10200 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", |
| 10201 | pdev->irq, rc); |
| 10202 | goto cleanup_nolog; |
| 10203 | } |
| 10204 | |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 10205 | if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || |
| 10206 | (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { |
| 10207 | ioa_cfg->needs_warm_reset = 1; |
| 10208 | ioa_cfg->reset = ipr_reset_slot_reset; |
Brian King | 2796ca5 | 2015-03-26 11:23:52 -0500 | [diff] [blame] | 10209 | |
| 10210 | ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d", |
| 10211 | WQ_MEM_RECLAIM, host->host_no); |
| 10212 | |
| 10213 | if (!ioa_cfg->reset_work_q) { |
| 10214 | dev_err(&pdev->dev, "Couldn't register reset workqueue\n"); |
| 10215 | goto out_free_irq; |
| 10216 | } |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 10217 | } else |
| 10218 | ioa_cfg->reset = ipr_reset_start_bist; |
| 10219 | |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 10220 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10221 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 10222 | spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10223 | |
| 10224 | LEAVE; |
| 10225 | out: |
| 10226 | return rc; |
| 10227 | |
Brian King | 2796ca5 | 2015-03-26 11:23:52 -0500 | [diff] [blame] | 10228 | out_free_irq: |
| 10229 | ipr_free_irqs(ioa_cfg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10230 | cleanup_nolog: |
| 10231 | ipr_free_mem(ioa_cfg); |
Wayne Boyer | 95fecd9 | 2009-06-16 15:13:28 -0700 | [diff] [blame] | 10232 | out_msi_disable: |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10233 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10234 | if (ioa_cfg->intr_flag == IPR_USE_MSI) |
| 10235 | pci_disable_msi(pdev); |
| 10236 | else if (ioa_cfg->intr_flag == IPR_USE_MSIX) |
| 10237 | pci_disable_msix(pdev); |
Julia Lawall | f170c68 | 2011-07-11 14:08:25 -0700 | [diff] [blame] | 10238 | cleanup_nomem: |
| 10239 | iounmap(ipr_regs); |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10240 | out_disable: |
| 10241 | pci_disable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10242 | out_release_regions: |
| 10243 | pci_release_regions(pdev); |
| 10244 | out_scsi_host_put: |
| 10245 | scsi_host_put(host); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10246 | goto out; |
| 10247 | } |
| 10248 | |
| 10249 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10250 | * ipr_initiate_ioa_bringdown - Bring down an adapter |
| 10251 | * @ioa_cfg: ioa config struct |
| 10252 | * @shutdown_type: shutdown type |
| 10253 | * |
| 10254 | * Description: This function will initiate bringing down the adapter. |
| 10255 | * This consists of issuing an IOA shutdown to the adapter |
| 10256 | * to flush the cache, and running BIST. |
| 10257 | * If the caller needs to wait on the completion of the reset, |
| 10258 | * the caller must sleep on the reset_wait_q. |
| 10259 | * |
| 10260 | * Return value: |
| 10261 | * none |
| 10262 | **/ |
| 10263 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, |
| 10264 | enum ipr_shutdown_type shutdown_type) |
| 10265 | { |
| 10266 | ENTER; |
| 10267 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) |
| 10268 | ioa_cfg->sdt_state = ABORT_DUMP; |
| 10269 | ioa_cfg->reset_retries = 0; |
| 10270 | ioa_cfg->in_ioa_bringdown = 1; |
| 10271 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); |
| 10272 | LEAVE; |
| 10273 | } |
| 10274 | |
| 10275 | /** |
| 10276 | * __ipr_remove - Remove a single adapter |
| 10277 | * @pdev: pci device struct |
| 10278 | * |
| 10279 | * Adapter hot plug remove entry point. |
| 10280 | * |
| 10281 | * Return value: |
| 10282 | * none |
| 10283 | **/ |
| 10284 | static void __ipr_remove(struct pci_dev *pdev) |
| 10285 | { |
| 10286 | unsigned long host_lock_flags = 0; |
| 10287 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
Brian King | bfae782 | 2013-01-30 23:45:08 -0600 | [diff] [blame] | 10288 | int i; |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 10289 | unsigned long driver_lock_flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10290 | ENTER; |
| 10291 | |
| 10292 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 10293 | while (ioa_cfg->in_reset_reload) { |
Brian King | 970ea29 | 2007-04-26 16:00:06 -0500 | [diff] [blame] | 10294 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
| 10295 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 10296 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
| 10297 | } |
| 10298 | |
Brian King | bfae782 | 2013-01-30 23:45:08 -0600 | [diff] [blame] | 10299 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
| 10300 | spin_lock(&ioa_cfg->hrrq[i]._lock); |
| 10301 | ioa_cfg->hrrq[i].removing_ioa = 1; |
| 10302 | spin_unlock(&ioa_cfg->hrrq[i]._lock); |
| 10303 | } |
| 10304 | wmb(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10305 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
| 10306 | |
| 10307 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
| 10308 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
Tejun Heo | 4382973 | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 10309 | flush_work(&ioa_cfg->work_q); |
Brian King | 2796ca5 | 2015-03-26 11:23:52 -0500 | [diff] [blame] | 10310 | if (ioa_cfg->reset_work_q) |
| 10311 | flush_workqueue(ioa_cfg->reset_work_q); |
wenxiong@linux.vnet.ibm.com | 9077a94 | 2013-03-14 13:52:24 -0500 | [diff] [blame] | 10312 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10313 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
| 10314 | |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 10315 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10316 | list_del(&ioa_cfg->queue); |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 10317 | spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10318 | |
| 10319 | if (ioa_cfg->sdt_state == ABORT_DUMP) |
| 10320 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
| 10321 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); |
| 10322 | |
| 10323 | ipr_free_all_resources(ioa_cfg); |
| 10324 | |
| 10325 | LEAVE; |
| 10326 | } |
| 10327 | |
| 10328 | /** |
| 10329 | * ipr_remove - IOA hot plug remove entry point |
| 10330 | * @pdev: pci device struct |
| 10331 | * |
| 10332 | * Adapter hot plug remove entry point. |
| 10333 | * |
| 10334 | * Return value: |
| 10335 | * none |
| 10336 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 10337 | static void ipr_remove(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10338 | { |
| 10339 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
| 10340 | |
| 10341 | ENTER; |
| 10342 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 10343 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10344 | &ipr_trace_attr); |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 10345 | ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10346 | &ipr_dump_attr); |
| 10347 | scsi_remove_host(ioa_cfg->host); |
| 10348 | |
| 10349 | __ipr_remove(pdev); |
| 10350 | |
| 10351 | LEAVE; |
| 10352 | } |
| 10353 | |
| 10354 | /** |
| 10355 | * ipr_probe - Adapter hot plug add entry point |
| 10356 | * |
| 10357 | * Return value: |
| 10358 | * 0 on success / non-zero on failure |
| 10359 | **/ |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 10360 | static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10361 | { |
| 10362 | struct ipr_ioa_cfg *ioa_cfg; |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 10363 | int rc, i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10364 | |
| 10365 | rc = ipr_probe_ioa(pdev, dev_id); |
| 10366 | |
| 10367 | if (rc) |
| 10368 | return rc; |
| 10369 | |
| 10370 | ioa_cfg = pci_get_drvdata(pdev); |
| 10371 | rc = ipr_probe_ioa_part2(ioa_cfg); |
| 10372 | |
| 10373 | if (rc) { |
| 10374 | __ipr_remove(pdev); |
| 10375 | return rc; |
| 10376 | } |
| 10377 | |
| 10378 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); |
| 10379 | |
| 10380 | if (rc) { |
| 10381 | __ipr_remove(pdev); |
| 10382 | return rc; |
| 10383 | } |
| 10384 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 10385 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10386 | &ipr_trace_attr); |
| 10387 | |
| 10388 | if (rc) { |
| 10389 | scsi_remove_host(ioa_cfg->host); |
| 10390 | __ipr_remove(pdev); |
| 10391 | return rc; |
| 10392 | } |
| 10393 | |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 10394 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10395 | &ipr_dump_attr); |
| 10396 | |
| 10397 | if (rc) { |
Tony Jones | ee959b0 | 2008-02-22 00:13:36 +0100 | [diff] [blame] | 10398 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10399 | &ipr_trace_attr); |
| 10400 | scsi_remove_host(ioa_cfg->host); |
| 10401 | __ipr_remove(pdev); |
| 10402 | return rc; |
| 10403 | } |
| 10404 | |
| 10405 | scsi_scan_host(ioa_cfg->host); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 10406 | ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight; |
| 10407 | |
Jens Axboe | 89f8b33 | 2014-03-13 09:38:42 -0600 | [diff] [blame] | 10408 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 10409 | for (i = 1; i < ioa_cfg->hrrq_num; i++) { |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 10410 | irq_poll_init(&ioa_cfg->hrrq[i].iopoll, |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 10411 | ioa_cfg->iopoll_weight, ipr_iopoll); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 10412 | } |
| 10413 | } |
| 10414 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10415 | schedule_work(&ioa_cfg->work_q); |
| 10416 | return 0; |
| 10417 | } |
| 10418 | |
| 10419 | /** |
| 10420 | * ipr_shutdown - Shutdown handler. |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 10421 | * @pdev: pci device struct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10422 | * |
| 10423 | * This function is invoked upon system shutdown/reboot. It will issue |
| 10424 | * an adapter shutdown to the adapter to flush the write cache. |
| 10425 | * |
| 10426 | * Return value: |
| 10427 | * none |
| 10428 | **/ |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 10429 | static void ipr_shutdown(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10430 | { |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 10431 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10432 | unsigned long lock_flags = 0; |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 10433 | enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL; |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 10434 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10435 | |
| 10436 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
Jens Axboe | 89f8b33 | 2014-03-13 09:38:42 -0600 | [diff] [blame] | 10437 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 10438 | ioa_cfg->iopoll_weight = 0; |
| 10439 | for (i = 1; i < ioa_cfg->hrrq_num; i++) |
Christoph Hellwig | 511cbce | 2015-11-10 14:56:14 +0100 | [diff] [blame] | 10440 | irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); |
wenxiong@linux.vnet.ibm.com | b53d124 | 2013-01-11 17:43:52 -0600 | [diff] [blame] | 10441 | } |
| 10442 | |
Kleber Sacilotto de Souza | 203fa3f | 2012-08-22 18:14:14 -0300 | [diff] [blame] | 10443 | while (ioa_cfg->in_reset_reload) { |
Brian King | 970ea29 | 2007-04-26 16:00:06 -0500 | [diff] [blame] | 10444 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 10445 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
| 10446 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
| 10447 | } |
| 10448 | |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 10449 | if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) |
| 10450 | shutdown_type = IPR_SHUTDOWN_QUIESCE; |
| 10451 | |
| 10452 | ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10453 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
| 10454 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 10455 | if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) { |
Brian King | 2796ca5 | 2015-03-26 11:23:52 -0500 | [diff] [blame] | 10456 | ipr_free_irqs(ioa_cfg); |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 10457 | pci_disable_device(ioa_cfg->pdev); |
| 10458 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10459 | } |
| 10460 | |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 10461 | static struct pci_device_id ipr_pci_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10462 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10463 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10464 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10465 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10466 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10467 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10468 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10469 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10470 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10471 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10472 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10473 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10474 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10475 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 10476 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 10477 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, |
| 10478 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 10479 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10480 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 10481 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
Brian King | 22d2e40 | 2007-04-26 16:00:13 -0500 | [diff] [blame] | 10482 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
| 10483 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
Brian King | 60e7486 | 2006-11-21 10:28:10 -0600 | [diff] [blame] | 10484 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 10485 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
| 10486 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 10487 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10488 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 10489 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
Brian King | 22d2e40 | 2007-04-26 16:00:13 -0500 | [diff] [blame] | 10490 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
| 10491 | IPR_USE_LONG_TRANSOP_TIMEOUT}, |
Brian King | 60e7486 | 2006-11-21 10:28:10 -0600 | [diff] [blame] | 10492 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 10493 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
| 10494 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
Brian King | 60e7486 | 2006-11-21 10:28:10 -0600 | [diff] [blame] | 10495 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
Brian King | 22d2e40 | 2007-04-26 16:00:13 -0500 | [diff] [blame] | 10496 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, |
| 10497 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
Brian King | 185eb31 | 2007-03-29 12:42:53 -0500 | [diff] [blame] | 10498 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
Brian King | 185eb31 | 2007-03-29 12:42:53 -0500 | [diff] [blame] | 10499 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, |
| 10500 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
Wayne Boyer | b0f56d3 | 2010-06-24 13:34:14 -0700 | [diff] [blame] | 10501 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, |
| 10502 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 10503 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, |
Brian King | 463fc69 | 2007-05-07 17:09:05 -0500 | [diff] [blame] | 10504 | IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10505 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10506 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10507 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
Brian King | 6d84c94 | 2007-01-23 11:25:23 -0600 | [diff] [blame] | 10508 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, |
brking@us.ibm.com | 86f5143 | 2005-11-01 17:02:42 -0600 | [diff] [blame] | 10509 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 10510 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, |
| 10511 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
Brian King | 60e7486 | 2006-11-21 10:28:10 -0600 | [diff] [blame] | 10512 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
Brian King | 5469cb5 | 2007-03-29 12:42:40 -0500 | [diff] [blame] | 10513 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, |
| 10514 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
Wayne Boyer | d7b4627 | 2010-02-19 13:24:38 -0800 | [diff] [blame] | 10515 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
| 10516 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, |
| 10517 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
| 10518 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, |
| 10519 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
| 10520 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, |
Wayne Boyer | 32622bd | 2010-10-18 20:24:34 -0700 | [diff] [blame] | 10521 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
wenxiong@linux.vnet.ibm.com | b8d5d56 | 2013-01-11 17:43:47 -0600 | [diff] [blame] | 10522 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 }, |
| 10523 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
Wayne Boyer | 5a91835 | 2011-10-27 11:58:21 -0700 | [diff] [blame] | 10524 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 }, |
| 10525 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
Wayne Boyer | 32622bd | 2010-10-18 20:24:34 -0700 | [diff] [blame] | 10526 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, |
Wayne Boyer | cd9b3d0 | 2012-02-23 11:54:55 -0800 | [diff] [blame] | 10527 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
Wayne Boyer | d7b4627 | 2010-02-19 13:24:38 -0800 | [diff] [blame] | 10528 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, |
Wayne Boyer | cd9b3d0 | 2012-02-23 11:54:55 -0800 | [diff] [blame] | 10529 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
Wayne Boyer | d7b4627 | 2010-02-19 13:24:38 -0800 | [diff] [blame] | 10530 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, |
Wayne Boyer | cd9b3d0 | 2012-02-23 11:54:55 -0800 | [diff] [blame] | 10531 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
Wayne Boyer | d7b4627 | 2010-02-19 13:24:38 -0800 | [diff] [blame] | 10532 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, |
Wayne Boyer | cd9b3d0 | 2012-02-23 11:54:55 -0800 | [diff] [blame] | 10533 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10534 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 }, |
| 10535 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
Wayne Boyer | d7b4627 | 2010-02-19 13:24:38 -0800 | [diff] [blame] | 10536 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, |
wenxiong@linux.vnet.ibm.com | b8d5d56 | 2013-01-11 17:43:47 -0600 | [diff] [blame] | 10537 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10538 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 }, |
| 10539 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10540 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 }, |
| 10541 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10542 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 }, |
| 10543 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10544 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 }, |
wenxiong@linux.vnet.ibm.com | 43c5fda | 2013-07-10 10:46:27 -0500 | [diff] [blame] | 10545 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10546 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 }, |
| 10547 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
Wendy Xiong | f94d996 | 2014-01-21 12:16:40 -0600 | [diff] [blame] | 10548 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 }, |
| 10549 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
wenxiong@linux.vnet.ibm.com | 43c5fda | 2013-07-10 10:46:27 -0500 | [diff] [blame] | 10550 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 }, |
| 10551 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10552 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 }, |
| 10553 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10554 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 }, |
| 10555 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10556 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 }, |
| 10557 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10558 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 }, |
| 10559 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10560 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 }, |
Wendy Xiong | 5eeac3e | 2014-03-12 16:08:52 -0500 | [diff] [blame] | 10561 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10562 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 }, |
| 10563 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10564 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 }, |
| 10565 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
| 10566 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10567 | { } |
| 10568 | }; |
| 10569 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); |
| 10570 | |
Stephen Hemminger | a55b2d2 | 2012-09-07 09:33:16 -0700 | [diff] [blame] | 10571 | static const struct pci_error_handlers ipr_err_handler = { |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 10572 | .error_detected = ipr_pci_error_detected, |
Brian King | 6270e59 | 2014-01-21 12:16:41 -0600 | [diff] [blame] | 10573 | .mmio_enabled = ipr_pci_mmio_enabled, |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 10574 | .slot_reset = ipr_pci_slot_reset, |
| 10575 | }; |
| 10576 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10577 | static struct pci_driver ipr_driver = { |
| 10578 | .name = IPR_NAME, |
| 10579 | .id_table = ipr_pci_table, |
| 10580 | .probe = ipr_probe, |
Greg Kroah-Hartman | 6f03979 | 2012-12-21 13:08:55 -0800 | [diff] [blame] | 10581 | .remove = ipr_remove, |
Greg Kroah-Hartman | d18c3db | 2005-06-23 17:35:56 -0700 | [diff] [blame] | 10582 | .shutdown = ipr_shutdown, |
Linas Vepstas | f8a88b19 | 2006-02-03 16:52:42 -0600 | [diff] [blame] | 10583 | .err_handler = &ipr_err_handler, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10584 | }; |
| 10585 | |
| 10586 | /** |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 10587 | * ipr_halt_done - Shutdown prepare completion |
| 10588 | * |
| 10589 | * Return value: |
| 10590 | * none |
| 10591 | **/ |
| 10592 | static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) |
| 10593 | { |
wenxiong@linux.vnet.ibm.com | 05a6538 | 2013-01-11 17:43:50 -0600 | [diff] [blame] | 10594 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 10595 | } |
| 10596 | |
| 10597 | /** |
| 10598 | * ipr_halt - Issue shutdown prepare to all adapters |
| 10599 | * |
| 10600 | * Return value: |
| 10601 | * NOTIFY_OK on success / NOTIFY_DONE on failure |
| 10602 | **/ |
| 10603 | static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) |
| 10604 | { |
| 10605 | struct ipr_cmnd *ipr_cmd; |
| 10606 | struct ipr_ioa_cfg *ioa_cfg; |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 10607 | unsigned long flags = 0, driver_lock_flags; |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 10608 | |
| 10609 | if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) |
| 10610 | return NOTIFY_DONE; |
| 10611 | |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 10612 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 10613 | |
| 10614 | list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { |
| 10615 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
Brian King | 4fdd7c7 | 2015-03-26 11:23:50 -0500 | [diff] [blame] | 10616 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds || |
| 10617 | (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) { |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 10618 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 10619 | continue; |
| 10620 | } |
| 10621 | |
| 10622 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
| 10623 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
| 10624 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
| 10625 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; |
| 10626 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; |
| 10627 | |
| 10628 | ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
| 10629 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
| 10630 | } |
wenxiong@linux.vnet.ibm.com | feccada | 2013-05-24 09:59:13 -0500 | [diff] [blame] | 10631 | spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 10632 | |
| 10633 | return NOTIFY_OK; |
| 10634 | } |
| 10635 | |
| 10636 | static struct notifier_block ipr_notifier = { |
| 10637 | ipr_halt, NULL, 0 |
| 10638 | }; |
| 10639 | |
| 10640 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10641 | * ipr_init - Module entry point |
| 10642 | * |
| 10643 | * Return value: |
| 10644 | * 0 on success / negative value on failure |
| 10645 | **/ |
| 10646 | static int __init ipr_init(void) |
| 10647 | { |
| 10648 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", |
| 10649 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); |
| 10650 | |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 10651 | register_reboot_notifier(&ipr_notifier); |
Henrik Kretzschmar | dcbccbde | 2006-09-25 16:58:58 -0700 | [diff] [blame] | 10652 | return pci_register_driver(&ipr_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10653 | } |
| 10654 | |
| 10655 | /** |
| 10656 | * ipr_exit - Module unload |
| 10657 | * |
| 10658 | * Module unload entry point. |
| 10659 | * |
| 10660 | * Return value: |
| 10661 | * none |
| 10662 | **/ |
| 10663 | static void __exit ipr_exit(void) |
| 10664 | { |
Wayne Boyer | f72919e | 2010-02-19 13:24:21 -0800 | [diff] [blame] | 10665 | unregister_reboot_notifier(&ipr_notifier); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10666 | pci_unregister_driver(&ipr_driver); |
| 10667 | } |
| 10668 | |
| 10669 | module_init(ipr_init); |
| 10670 | module_exit(ipr_exit); |