blob: db205c9d42d12a94f21ed209099b5e5230bbd37f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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 Torvalds1da177e2005-04-16 15:20:36 -070057#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 Heo5a0e3ad2010-03-24 17:04:11 +090062#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070063#include <linux/ioport.h>
64#include <linux/delay.h>
65#include <linux/pci.h>
66#include <linux/wait.h>
67#include <linux/spinlock.h>
68#include <linux/sched.h>
69#include <linux/interrupt.h>
70#include <linux/blkdev.h>
71#include <linux/firmware.h>
72#include <linux/module.h>
73#include <linux/moduleparam.h>
Brian King35a39692006-09-25 12:39:20 -050074#include <linux/libata.h>
Brian King0ce3a7e2008-07-11 13:37:50 -050075#include <linux/hdreg.h>
Wayne Boyerf72919e2010-02-19 13:24:21 -080076#include <linux/reboot.h>
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -080077#include <linux/stringify.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070078#include <asm/io.h>
79#include <asm/irq.h>
80#include <asm/processor.h>
81#include <scsi/scsi.h>
82#include <scsi/scsi_host.h>
83#include <scsi/scsi_tcq.h>
84#include <scsi/scsi_eh.h>
85#include <scsi/scsi_cmnd.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070086#include "ipr.h"
87
88/*
89 * Global Data
90 */
Denis Chengb7d68ca2007-12-13 16:14:27 -080091static LIST_HEAD(ipr_ioa_head);
Linus Torvalds1da177e2005-04-16 15:20:36 -070092static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
93static unsigned int ipr_max_speed = 1;
94static int ipr_testmode = 0;
95static unsigned int ipr_fastfail = 0;
Brian King5469cb52007-03-29 12:42:40 -050096static unsigned int ipr_transop_timeout = 0;
brking@us.ibm.comd3c74872005-11-01 17:01:34 -060097static unsigned int ipr_debug = 0;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -080098static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
Brian Kingac09c342007-04-26 16:00:16 -050099static unsigned int ipr_dual_ioa_raid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100static DEFINE_SPINLOCK(ipr_driver_lock);
101
102/* This table describes the differences between DMA controller chips */
103static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
Brian King60e74862006-11-21 10:28:10 -0600104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 .mailbox = 0x0042C,
106 .cache_line_size = 0x20,
107 {
108 .set_interrupt_mask_reg = 0x0022C,
109 .clr_interrupt_mask_reg = 0x00230,
Wayne Boyer214777b2010-02-19 13:24:26 -0800110 .clr_interrupt_mask_reg32 = 0x00230,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 .sense_interrupt_mask_reg = 0x0022C,
Wayne Boyer214777b2010-02-19 13:24:26 -0800112 .sense_interrupt_mask_reg32 = 0x0022C,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 .clr_interrupt_reg = 0x00228,
Wayne Boyer214777b2010-02-19 13:24:26 -0800114 .clr_interrupt_reg32 = 0x00228,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 .sense_interrupt_reg = 0x00224,
Wayne Boyer214777b2010-02-19 13:24:26 -0800116 .sense_interrupt_reg32 = 0x00224,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 .ioarrin_reg = 0x00404,
118 .sense_uproc_interrupt_reg = 0x00214,
Wayne Boyer214777b2010-02-19 13:24:26 -0800119 .sense_uproc_interrupt_reg32 = 0x00214,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 .set_uproc_interrupt_reg = 0x00214,
Wayne Boyer214777b2010-02-19 13:24:26 -0800121 .set_uproc_interrupt_reg32 = 0x00214,
122 .clr_uproc_interrupt_reg = 0x00218,
123 .clr_uproc_interrupt_reg32 = 0x00218
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 }
125 },
126 { /* Snipe and Scamp */
127 .mailbox = 0x0052C,
128 .cache_line_size = 0x20,
129 {
130 .set_interrupt_mask_reg = 0x00288,
131 .clr_interrupt_mask_reg = 0x0028C,
Wayne Boyer214777b2010-02-19 13:24:26 -0800132 .clr_interrupt_mask_reg32 = 0x0028C,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 .sense_interrupt_mask_reg = 0x00288,
Wayne Boyer214777b2010-02-19 13:24:26 -0800134 .sense_interrupt_mask_reg32 = 0x00288,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135 .clr_interrupt_reg = 0x00284,
Wayne Boyer214777b2010-02-19 13:24:26 -0800136 .clr_interrupt_reg32 = 0x00284,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137 .sense_interrupt_reg = 0x00280,
Wayne Boyer214777b2010-02-19 13:24:26 -0800138 .sense_interrupt_reg32 = 0x00280,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 .ioarrin_reg = 0x00504,
140 .sense_uproc_interrupt_reg = 0x00290,
Wayne Boyer214777b2010-02-19 13:24:26 -0800141 .sense_uproc_interrupt_reg32 = 0x00290,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 .set_uproc_interrupt_reg = 0x00290,
Wayne Boyer214777b2010-02-19 13:24:26 -0800143 .set_uproc_interrupt_reg32 = 0x00290,
144 .clr_uproc_interrupt_reg = 0x00294,
145 .clr_uproc_interrupt_reg32 = 0x00294
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 }
147 },
Wayne Boyera74c1632010-02-19 13:23:51 -0800148 { /* CRoC */
149 .mailbox = 0x00040,
150 .cache_line_size = 0x20,
151 {
152 .set_interrupt_mask_reg = 0x00010,
153 .clr_interrupt_mask_reg = 0x00018,
Wayne Boyer214777b2010-02-19 13:24:26 -0800154 .clr_interrupt_mask_reg32 = 0x0001C,
Wayne Boyera74c1632010-02-19 13:23:51 -0800155 .sense_interrupt_mask_reg = 0x00010,
Wayne Boyer214777b2010-02-19 13:24:26 -0800156 .sense_interrupt_mask_reg32 = 0x00014,
Wayne Boyera74c1632010-02-19 13:23:51 -0800157 .clr_interrupt_reg = 0x00008,
Wayne Boyer214777b2010-02-19 13:24:26 -0800158 .clr_interrupt_reg32 = 0x0000C,
Wayne Boyera74c1632010-02-19 13:23:51 -0800159 .sense_interrupt_reg = 0x00000,
Wayne Boyer214777b2010-02-19 13:24:26 -0800160 .sense_interrupt_reg32 = 0x00004,
Wayne Boyera74c1632010-02-19 13:23:51 -0800161 .ioarrin_reg = 0x00070,
162 .sense_uproc_interrupt_reg = 0x00020,
Wayne Boyer214777b2010-02-19 13:24:26 -0800163 .sense_uproc_interrupt_reg32 = 0x00024,
Wayne Boyera74c1632010-02-19 13:23:51 -0800164 .set_uproc_interrupt_reg = 0x00020,
Wayne Boyer214777b2010-02-19 13:24:26 -0800165 .set_uproc_interrupt_reg32 = 0x00024,
Wayne Boyerdcbad002010-02-19 13:24:14 -0800166 .clr_uproc_interrupt_reg = 0x00028,
Wayne Boyer214777b2010-02-19 13:24:26 -0800167 .clr_uproc_interrupt_reg32 = 0x0002C,
168 .init_feedback_reg = 0x0005C,
Wayne Boyerdcbad002010-02-19 13:24:14 -0800169 .dump_addr_reg = 0x00064,
Wayne Boyer8701f182010-06-04 10:26:50 -0700170 .dump_data_reg = 0x00068,
171 .endian_swap_reg = 0x00084
Wayne Boyera74c1632010-02-19 13:23:51 -0800172 }
173 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174};
175
176static const struct ipr_chip_t ipr_chip[] = {
Wayne Boyercb237ef2010-06-17 11:51:40 -0700177 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186};
187
188static int ipr_max_bus_speeds [] = {
189 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
190};
191
192MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
193MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
194module_param_named(max_speed, ipr_max_speed, uint, 0);
195MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
196module_param_named(log_level, ipr_log_level, uint, 0);
197MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
198module_param_named(testmode, ipr_testmode, int, 0);
199MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
Wayne Boyer2cf22be2009-02-24 11:36:00 -0800200module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
202module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
203MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
Wayne Boyer2cf22be2009-02-24 11:36:00 -0800204module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
brking@us.ibm.comd3c74872005-11-01 17:01:34 -0600205MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
Brian Kingac09c342007-04-26 16:00:16 -0500206module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
207MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -0800208module_param_named(max_devs, ipr_max_devs, int, 0);
209MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
210 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211MODULE_LICENSE("GPL");
212MODULE_VERSION(IPR_DRIVER_VERSION);
213
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214/* A constant array of IOASCs/URCs/Error Messages */
215static const
216struct ipr_error_table_t ipr_error_table[] = {
Brian King933916f2007-03-29 12:43:30 -0500217 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 "8155: An unknown error was received"},
219 {0x00330000, 0, 0,
220 "Soft underlength error"},
221 {0x005A0000, 0, 0,
222 "Command to be cancelled not found"},
223 {0x00808000, 0, 0,
224 "Qualified success"},
Brian King933916f2007-03-29 12:43:30 -0500225 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 "FFFE: Soft device bus error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500227 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500228 "4101: Soft device bus fabric error"},
Wayne Boyer5aa3a332010-02-19 13:24:32 -0800229 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
230 "FFFC: Logical block guard error recovered by the device"},
231 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
232 "FFFC: Logical block reference tag error recovered by the device"},
233 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
234 "4171: Recovered scatter list tag / sequence number error"},
235 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
236 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
237 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
239 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "FFFD: Recovered logical block reference tag error detected by the IOA"},
241 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
242 "FFFD: Logical block guard error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500243 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244 "FFF9: Device sector reassign successful"},
Brian King933916f2007-03-29 12:43:30 -0500245 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 "FFF7: Media error recovered by device rewrite procedures"},
Brian King933916f2007-03-29 12:43:30 -0500247 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 "7001: IOA sector reassignment successful"},
Brian King933916f2007-03-29 12:43:30 -0500249 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250 "FFF9: Soft media error. Sector reassignment recommended"},
Brian King933916f2007-03-29 12:43:30 -0500251 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252 "FFF7: Media error recovered by IOA rewrite procedures"},
Brian King933916f2007-03-29 12:43:30 -0500253 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 "FF3D: Soft PCI bus error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500255 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 "FFF6: Device hardware error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500257 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258 "FFF6: Device hardware error recovered by the device"},
Brian King933916f2007-03-29 12:43:30 -0500259 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 "FF3D: Soft IOA error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500261 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 "FFFA: Undefined device response recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500263 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 "FFF6: Device bus error, message or command phase"},
Brian King933916f2007-03-29 12:43:30 -0500265 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King35a39692006-09-25 12:39:20 -0500266 "FFFE: Task Management Function failed"},
Brian King933916f2007-03-29 12:43:30 -0500267 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 "FFF6: Failure prediction threshold exceeded"},
Brian King933916f2007-03-29 12:43:30 -0500269 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270 "8009: Impending cache battery pack failure"},
271 {0x02040400, 0, 0,
272 "34FF: Disk device format in progress"},
Brian King65f56472007-04-26 16:00:12 -0500273 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
274 "9070: IOA requested reset"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 {0x023F0000, 0, 0,
276 "Synchronization required"},
277 {0x024E0000, 0, 0,
278 "No ready, IOA shutdown"},
279 {0x025A0000, 0, 0,
280 "Not ready, IOA has been shutdown"},
Brian King933916f2007-03-29 12:43:30 -0500281 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 "3020: Storage subsystem configuration error"},
283 {0x03110B00, 0, 0,
284 "FFF5: Medium error, data unreadable, recommend reassign"},
285 {0x03110C00, 0, 0,
286 "7000: Medium error, data unreadable, do not reassign"},
Brian King933916f2007-03-29 12:43:30 -0500287 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 "FFF3: Disk media format bad"},
Brian King933916f2007-03-29 12:43:30 -0500289 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290 "3002: Addressed device failed to respond to selection"},
Brian King933916f2007-03-29 12:43:30 -0500291 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292 "3100: Device bus error"},
Brian King933916f2007-03-29 12:43:30 -0500293 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 "3109: IOA timed out a device command"},
295 {0x04088000, 0, 0,
296 "3120: SCSI bus is not operational"},
Brian King933916f2007-03-29 12:43:30 -0500297 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500298 "4100: Hard device bus fabric error"},
Wayne Boyer5aa3a332010-02-19 13:24:32 -0800299 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
300 "310C: Logical block guard error detected by the device"},
301 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
302 "310C: Logical block reference tag error detected by the device"},
303 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
304 "4170: Scatter list tag / sequence number error"},
305 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
306 "8150: Logical block CRC error on IOA to Host transfer"},
307 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
308 "4170: Logical block sequence number error on IOA to Host transfer"},
309 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
310 "310D: Logical block reference tag error detected by the IOA"},
311 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
312 "310D: Logical block guard error detected by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500313 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 "9000: IOA reserved area data check"},
Brian King933916f2007-03-29 12:43:30 -0500315 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 "9001: IOA reserved area invalid data pattern"},
Brian King933916f2007-03-29 12:43:30 -0500317 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 "9002: IOA reserved area LRC error"},
Wayne Boyer5aa3a332010-02-19 13:24:32 -0800319 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
320 "Hardware Error, IOA metadata access error"},
Brian King933916f2007-03-29 12:43:30 -0500321 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 "102E: Out of alternate sectors for disk storage"},
Brian King933916f2007-03-29 12:43:30 -0500323 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 "FFF4: Data transfer underlength error"},
Brian King933916f2007-03-29 12:43:30 -0500325 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 "FFF4: Data transfer overlength error"},
Brian King933916f2007-03-29 12:43:30 -0500327 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 "3400: Logical unit failure"},
Brian King933916f2007-03-29 12:43:30 -0500329 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330 "FFF4: Device microcode is corrupt"},
Brian King933916f2007-03-29 12:43:30 -0500331 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 "8150: PCI bus error"},
333 {0x04430000, 1, 0,
334 "Unsupported device bus message received"},
Brian King933916f2007-03-29 12:43:30 -0500335 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 "FFF4: Disk device problem"},
Brian King933916f2007-03-29 12:43:30 -0500337 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 "8150: Permanent IOA failure"},
Brian King933916f2007-03-29 12:43:30 -0500339 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 "3010: Disk device returned wrong response to IOA"},
Brian King933916f2007-03-29 12:43:30 -0500341 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 "8151: IOA microcode error"},
343 {0x04448500, 0, 0,
344 "Device bus status error"},
Brian King933916f2007-03-29 12:43:30 -0500345 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 "8157: IOA error requiring IOA reset to recover"},
Brian King35a39692006-09-25 12:39:20 -0500347 {0x04448700, 0, 0,
348 "ATA device status error"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349 {0x04490000, 0, 0,
350 "Message reject received from the device"},
Brian King933916f2007-03-29 12:43:30 -0500351 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352 "8008: A permanent cache battery pack failure occurred"},
Brian King933916f2007-03-29 12:43:30 -0500353 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354 "9090: Disk unit has been modified after the last known status"},
Brian King933916f2007-03-29 12:43:30 -0500355 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356 "9081: IOA detected device error"},
Brian King933916f2007-03-29 12:43:30 -0500357 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 "9082: IOA detected device error"},
Brian King933916f2007-03-29 12:43:30 -0500359 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 "3110: Device bus error, message or command phase"},
Brian King933916f2007-03-29 12:43:30 -0500361 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
Brian King35a39692006-09-25 12:39:20 -0500362 "3110: SAS Command / Task Management Function failed"},
Brian King933916f2007-03-29 12:43:30 -0500363 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 "9091: Incorrect hardware configuration change has been detected"},
Brian King933916f2007-03-29 12:43:30 -0500365 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600366 "9073: Invalid multi-adapter configuration"},
Brian King933916f2007-03-29 12:43:30 -0500367 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500368 "4010: Incorrect connection between cascaded expanders"},
Brian King933916f2007-03-29 12:43:30 -0500369 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500370 "4020: Connections exceed IOA design limits"},
Brian King933916f2007-03-29 12:43:30 -0500371 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500372 "4030: Incorrect multipath connection"},
Brian King933916f2007-03-29 12:43:30 -0500373 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500374 "4110: Unsupported enclosure function"},
Brian King933916f2007-03-29 12:43:30 -0500375 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 "FFF4: Command to logical unit failed"},
377 {0x05240000, 1, 0,
378 "Illegal request, invalid request type or request packet"},
379 {0x05250000, 0, 0,
380 "Illegal request, invalid resource handle"},
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600381 {0x05258000, 0, 0,
382 "Illegal request, commands not allowed to this device"},
383 {0x05258100, 0, 0,
384 "Illegal request, command not allowed to a secondary adapter"},
Wayne Boyer5aa3a332010-02-19 13:24:32 -0800385 {0x05258200, 0, 0,
386 "Illegal request, command not allowed to a non-optimized resource"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 {0x05260000, 0, 0,
388 "Illegal request, invalid field in parameter list"},
389 {0x05260100, 0, 0,
390 "Illegal request, parameter not supported"},
391 {0x05260200, 0, 0,
392 "Illegal request, parameter value invalid"},
393 {0x052C0000, 0, 0,
394 "Illegal request, command sequence error"},
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600395 {0x052C8000, 1, 0,
396 "Illegal request, dual adapter support not enabled"},
Brian King933916f2007-03-29 12:43:30 -0500397 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 "9031: Array protection temporarily suspended, protection resuming"},
Brian King933916f2007-03-29 12:43:30 -0500399 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400 "9040: Array protection temporarily suspended, protection resuming"},
Brian King933916f2007-03-29 12:43:30 -0500401 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500402 "3140: Device bus not ready to ready transition"},
Brian King933916f2007-03-29 12:43:30 -0500403 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 "FFFB: SCSI bus was reset"},
405 {0x06290500, 0, 0,
406 "FFFE: SCSI bus transition to single ended"},
407 {0x06290600, 0, 0,
408 "FFFE: SCSI bus transition to LVD"},
Brian King933916f2007-03-29 12:43:30 -0500409 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 "FFFB: SCSI bus was reset by another initiator"},
Brian King933916f2007-03-29 12:43:30 -0500411 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 "3029: A device replacement has occurred"},
Brian King933916f2007-03-29 12:43:30 -0500413 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 "9051: IOA cache data exists for a missing or failed device"},
Brian King933916f2007-03-29 12:43:30 -0500415 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600416 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
Brian King933916f2007-03-29 12:43:30 -0500417 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 "9025: Disk unit is not supported at its physical location"},
Brian King933916f2007-03-29 12:43:30 -0500419 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420 "3020: IOA detected a SCSI bus configuration error"},
Brian King933916f2007-03-29 12:43:30 -0500421 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422 "3150: SCSI bus configuration error"},
Brian King933916f2007-03-29 12:43:30 -0500423 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600424 "9074: Asymmetric advanced function disk configuration"},
Brian King933916f2007-03-29 12:43:30 -0500425 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500426 "4040: Incomplete multipath connection between IOA and enclosure"},
Brian King933916f2007-03-29 12:43:30 -0500427 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500428 "4041: Incomplete multipath connection between enclosure and device"},
Brian King933916f2007-03-29 12:43:30 -0500429 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500430 "9075: Incomplete multipath connection between IOA and remote IOA"},
Brian King933916f2007-03-29 12:43:30 -0500431 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500432 "9076: Configuration error, missing remote IOA"},
Brian King933916f2007-03-29 12:43:30 -0500433 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500434 "4050: Enclosure does not support a required multipath function"},
Wayne Boyerb75424f2009-01-28 08:24:50 -0800435 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4070: Logically bad block written on device"},
Brian King933916f2007-03-29 12:43:30 -0500437 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438 "9041: Array protection temporarily suspended"},
Brian King933916f2007-03-29 12:43:30 -0500439 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 "9042: Corrupt array parity detected on specified device"},
Brian King933916f2007-03-29 12:43:30 -0500441 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 "9030: Array no longer protected due to missing or failed disk unit"},
Brian King933916f2007-03-29 12:43:30 -0500443 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600444 "9071: Link operational transition"},
Brian King933916f2007-03-29 12:43:30 -0500445 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600446 "9072: Link not operational transition"},
Brian King933916f2007-03-29 12:43:30 -0500447 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448 "9032: Array exposed but still protected"},
Brian Kinge4353402007-03-29 12:43:37 -0500449 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
450 "70DD: Device forced failed by disrupt device command"},
Brian King933916f2007-03-29 12:43:30 -0500451 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500452 "4061: Multipath redundancy level got better"},
Brian King933916f2007-03-29 12:43:30 -0500453 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500454 "4060: Multipath redundancy level got worse"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 {0x07270000, 0, 0,
456 "Failure due to other device"},
Brian King933916f2007-03-29 12:43:30 -0500457 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 "9008: IOA does not support functions expected by devices"},
Brian King933916f2007-03-29 12:43:30 -0500459 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 "9010: Cache data associated with attached devices cannot be found"},
Brian King933916f2007-03-29 12:43:30 -0500461 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462 "9011: Cache data belongs to devices other than those attached"},
Brian King933916f2007-03-29 12:43:30 -0500463 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464 "9020: Array missing 2 or more devices with only 1 device present"},
Brian King933916f2007-03-29 12:43:30 -0500465 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 "9021: Array missing 2 or more devices with 2 or more devices present"},
Brian King933916f2007-03-29 12:43:30 -0500467 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468 "9022: Exposed array is missing a required device"},
Brian King933916f2007-03-29 12:43:30 -0500469 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 "9023: Array member(s) not at required physical locations"},
Brian King933916f2007-03-29 12:43:30 -0500471 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472 "9024: Array not functional due to present hardware configuration"},
Brian King933916f2007-03-29 12:43:30 -0500473 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 "9026: Array not functional due to present hardware configuration"},
Brian King933916f2007-03-29 12:43:30 -0500475 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476 "9027: Array is missing a device and parity is out of sync"},
Brian King933916f2007-03-29 12:43:30 -0500477 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478 "9028: Maximum number of arrays already exist"},
Brian King933916f2007-03-29 12:43:30 -0500479 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480 "9050: Required cache data cannot be located for a disk unit"},
Brian King933916f2007-03-29 12:43:30 -0500481 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 "9052: Cache data exists for a device that has been modified"},
Brian King933916f2007-03-29 12:43:30 -0500483 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 "9054: IOA resources not available due to previous problems"},
Brian King933916f2007-03-29 12:43:30 -0500485 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 "9092: Disk unit requires initialization before use"},
Brian King933916f2007-03-29 12:43:30 -0500487 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 "9029: Incorrect hardware configuration change has been detected"},
Brian King933916f2007-03-29 12:43:30 -0500489 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 "9060: One or more disk pairs are missing from an array"},
Brian King933916f2007-03-29 12:43:30 -0500491 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 "9061: One or more disks are missing from an array"},
Brian King933916f2007-03-29 12:43:30 -0500493 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 "9062: One or more disks are missing from an array"},
Brian King933916f2007-03-29 12:43:30 -0500495 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496 "9063: Maximum number of functional arrays has been exceeded"},
497 {0x0B260000, 0, 0,
498 "Aborted command, invalid descriptor"},
499 {0x0B5A0000, 0, 0,
500 "Command terminated by host"}
501};
502
503static const struct ipr_ses_table_entry ipr_ses_table[] = {
504 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
505 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
507 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
508 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
509 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
510 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
511 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
513 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
515 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
516 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
517};
518
519/*
520 * Function Prototypes
521 */
522static int ipr_reset_alert(struct ipr_cmnd *);
523static void ipr_process_ccn(struct ipr_cmnd *);
524static void ipr_process_error(struct ipr_cmnd *);
525static void ipr_reset_ioa_job(struct ipr_cmnd *);
526static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
527 enum ipr_shutdown_type);
528
529#ifdef CONFIG_SCSI_IPR_TRACE
530/**
531 * ipr_trc_hook - Add a trace entry to the driver trace
532 * @ipr_cmd: ipr command struct
533 * @type: trace type
534 * @add_data: additional data
535 *
536 * Return value:
537 * none
538 **/
539static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
540 u8 type, u32 add_data)
541{
542 struct ipr_trace_entry *trace_entry;
543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
544
545 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
546 trace_entry->time = jiffies;
547 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
548 trace_entry->type = type;
Wayne Boyera32c0552010-02-19 13:23:36 -0800549 if (ipr_cmd->ioa_cfg->sis64)
550 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
551 else
552 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
Brian King35a39692006-09-25 12:39:20 -0500553 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700554 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
555 trace_entry->u.add_data = add_data;
556}
557#else
558#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
559#endif
560
561/**
562 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
563 * @ipr_cmd: ipr command struct
564 *
565 * Return value:
566 * none
567 **/
568static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
569{
570 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyer96d21f02010-05-10 09:13:27 -0700571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
Wayne Boyera32c0552010-02-19 13:23:36 -0800573 dma_addr_t dma_addr = ipr_cmd->dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574
575 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
Wayne Boyera32c0552010-02-19 13:23:36 -0800576 ioarcb->data_transfer_length = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577 ioarcb->read_data_transfer_length = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -0800578 ioarcb->ioadl_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579 ioarcb->read_ioadl_len = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -0800580
Wayne Boyer96d21f02010-05-10 09:13:27 -0700581 if (ipr_cmd->ioa_cfg->sis64) {
Wayne Boyera32c0552010-02-19 13:23:36 -0800582 ioarcb->u.sis64_addr_data.data_ioadl_addr =
583 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
Wayne Boyer96d21f02010-05-10 09:13:27 -0700584 ioasa64->u.gata.status = 0;
585 } else {
Wayne Boyera32c0552010-02-19 13:23:36 -0800586 ioarcb->write_ioadl_addr =
587 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
588 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
Wayne Boyer96d21f02010-05-10 09:13:27 -0700589 ioasa->u.gata.status = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -0800590 }
591
Wayne Boyer96d21f02010-05-10 09:13:27 -0700592 ioasa->hdr.ioasc = 0;
593 ioasa->hdr.residual_data_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594 ipr_cmd->scsi_cmd = NULL;
Brian King35a39692006-09-25 12:39:20 -0500595 ipr_cmd->qc = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596 ipr_cmd->sense_buffer[0] = 0;
597 ipr_cmd->dma_use_sg = 0;
598}
599
600/**
601 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
602 * @ipr_cmd: ipr command struct
603 *
604 * Return value:
605 * none
606 **/
607static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
608{
609 ipr_reinit_ipr_cmnd(ipr_cmd);
610 ipr_cmd->u.scratch = 0;
611 ipr_cmd->sibling = NULL;
612 init_timer(&ipr_cmd->timer);
613}
614
615/**
616 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
617 * @ioa_cfg: ioa config struct
618 *
619 * Return value:
620 * pointer to ipr command struct
621 **/
622static
623struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
624{
625 struct ipr_cmnd *ipr_cmd;
626
627 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
628 list_del(&ipr_cmd->queue);
629 ipr_init_ipr_cmnd(ipr_cmd);
630
631 return ipr_cmd;
632}
633
634/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
636 * @ioa_cfg: ioa config struct
637 * @clr_ints: interrupts to clear
638 *
639 * This function masks all interrupts on the adapter, then clears the
640 * interrupts specified in the mask
641 *
642 * Return value:
643 * none
644 **/
645static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
646 u32 clr_ints)
647{
648 volatile u32 int_reg;
649
650 /* Stop new interrupts */
651 ioa_cfg->allow_interrupts = 0;
652
653 /* Set interrupt mask to stop all new interrupts */
Wayne Boyer214777b2010-02-19 13:24:26 -0800654 if (ioa_cfg->sis64)
655 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
656 else
657 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658
659 /* Clear any pending interrupts */
Wayne Boyer214777b2010-02-19 13:24:26 -0800660 if (ioa_cfg->sis64)
661 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
662 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
664}
665
666/**
667 * ipr_save_pcix_cmd_reg - Save PCI-X command register
668 * @ioa_cfg: ioa config struct
669 *
670 * Return value:
671 * 0 on success / -EIO on failure
672 **/
673static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
674{
675 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
676
Brian King7dce0e12007-01-23 11:25:30 -0600677 if (pcix_cmd_reg == 0)
678 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679
680 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
681 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
682 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
683 return -EIO;
684 }
685
686 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
687 return 0;
688}
689
690/**
691 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
692 * @ioa_cfg: ioa config struct
693 *
694 * Return value:
695 * 0 on success / -EIO on failure
696 **/
697static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
698{
699 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
700
701 if (pcix_cmd_reg) {
702 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
703 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
704 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
705 return -EIO;
706 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707 }
708
709 return 0;
710}
711
712/**
Brian King35a39692006-09-25 12:39:20 -0500713 * ipr_sata_eh_done - done function for aborted SATA commands
714 * @ipr_cmd: ipr command struct
715 *
716 * This function is invoked for ops generated to SATA
717 * devices which are being aborted.
718 *
719 * Return value:
720 * none
721 **/
722static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
723{
724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
725 struct ata_queued_cmd *qc = ipr_cmd->qc;
726 struct ipr_sata_port *sata_port = qc->ap->private_data;
727
728 qc->err_mask |= AC_ERR_OTHER;
729 sata_port->ioasa.status |= ATA_BUSY;
730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
731 ata_qc_complete(qc);
732}
733
734/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735 * ipr_scsi_eh_done - mid-layer done function for aborted ops
736 * @ipr_cmd: ipr command struct
737 *
738 * This function is invoked by the interrupt handler for
739 * ops generated by the SCSI mid-layer which are being aborted.
740 *
741 * Return value:
742 * none
743 **/
744static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
745{
746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
748
749 scsi_cmd->result |= (DID_ERROR << 16);
750
FUJITA Tomonori63015bc2007-05-26 00:26:59 +0900751 scsi_dma_unmap(ipr_cmd->scsi_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 scsi_cmd->scsi_done(scsi_cmd);
753 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
754}
755
756/**
757 * ipr_fail_all_ops - Fails all outstanding ops.
758 * @ioa_cfg: ioa config struct
759 *
760 * This function fails all outstanding ops.
761 *
762 * Return value:
763 * none
764 **/
765static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
766{
767 struct ipr_cmnd *ipr_cmd, *temp;
768
769 ENTER;
770 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
771 list_del(&ipr_cmd->queue);
772
Wayne Boyer96d21f02010-05-10 09:13:27 -0700773 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
774 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775
776 if (ipr_cmd->scsi_cmd)
777 ipr_cmd->done = ipr_scsi_eh_done;
Brian King35a39692006-09-25 12:39:20 -0500778 else if (ipr_cmd->qc)
779 ipr_cmd->done = ipr_sata_eh_done;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
781 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
782 del_timer(&ipr_cmd->timer);
783 ipr_cmd->done(ipr_cmd);
784 }
785
786 LEAVE;
787}
788
789/**
Wayne Boyera32c0552010-02-19 13:23:36 -0800790 * ipr_send_command - Send driver initiated requests.
791 * @ipr_cmd: ipr command struct
792 *
793 * This function sends a command to the adapter using the correct write call.
794 * In the case of sis64, calculate the ioarcb size required. Then or in the
795 * appropriate bits.
796 *
797 * Return value:
798 * none
799 **/
800static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
801{
802 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
803 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
804
805 if (ioa_cfg->sis64) {
806 /* The default size is 256 bytes */
807 send_dma_addr |= 0x1;
808
809 /* If the number of ioadls * size of ioadl > 128 bytes,
810 then use a 512 byte ioarcb */
811 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
812 send_dma_addr |= 0x4;
813 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
814 } else
815 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
816}
817
818/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 * ipr_do_req - Send driver initiated requests.
820 * @ipr_cmd: ipr command struct
821 * @done: done function
822 * @timeout_func: timeout function
823 * @timeout: timeout value
824 *
825 * This function sends the specified command to the adapter with the
826 * timeout given. The done function is invoked on command completion.
827 *
828 * Return value:
829 * none
830 **/
831static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
832 void (*done) (struct ipr_cmnd *),
833 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
834{
835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
836
837 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
838
839 ipr_cmd->done = done;
840
841 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
842 ipr_cmd->timer.expires = jiffies + timeout;
843 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
844
845 add_timer(&ipr_cmd->timer);
846
847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
848
849 mb();
Wayne Boyera32c0552010-02-19 13:23:36 -0800850
851 ipr_send_command(ipr_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852}
853
854/**
855 * ipr_internal_cmd_done - Op done function for an internally generated op.
856 * @ipr_cmd: ipr command struct
857 *
858 * This function is the op done function for an internally generated,
859 * blocking op. It simply wakes the sleeping thread.
860 *
861 * Return value:
862 * none
863 **/
864static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
865{
866 if (ipr_cmd->sibling)
867 ipr_cmd->sibling = NULL;
868 else
869 complete(&ipr_cmd->completion);
870}
871
872/**
Wayne Boyera32c0552010-02-19 13:23:36 -0800873 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
874 * @ipr_cmd: ipr command struct
875 * @dma_addr: dma address
876 * @len: transfer length
877 * @flags: ioadl flag value
878 *
879 * This function initializes an ioadl in the case where there is only a single
880 * descriptor.
881 *
882 * Return value:
883 * nothing
884 **/
885static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
886 u32 len, int flags)
887{
888 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
889 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
890
891 ipr_cmd->dma_use_sg = 1;
892
893 if (ipr_cmd->ioa_cfg->sis64) {
894 ioadl64->flags = cpu_to_be32(flags);
895 ioadl64->data_len = cpu_to_be32(len);
896 ioadl64->address = cpu_to_be64(dma_addr);
897
898 ipr_cmd->ioarcb.ioadl_len =
899 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
900 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
901 } else {
902 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
903 ioadl->address = cpu_to_be32(dma_addr);
904
905 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
906 ipr_cmd->ioarcb.read_ioadl_len =
907 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
908 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
909 } else {
910 ipr_cmd->ioarcb.ioadl_len =
911 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
912 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
913 }
914 }
915}
916
917/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 * ipr_send_blocking_cmd - Send command and sleep on its completion.
919 * @ipr_cmd: ipr command struct
920 * @timeout_func: function to invoke if command times out
921 * @timeout: timeout
922 *
923 * Return value:
924 * none
925 **/
926static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
927 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
928 u32 timeout)
929{
930 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
931
932 init_completion(&ipr_cmd->completion);
933 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
934
935 spin_unlock_irq(ioa_cfg->host->host_lock);
936 wait_for_completion(&ipr_cmd->completion);
937 spin_lock_irq(ioa_cfg->host->host_lock);
938}
939
940/**
941 * ipr_send_hcam - Send an HCAM to the adapter.
942 * @ioa_cfg: ioa config struct
943 * @type: HCAM type
944 * @hostrcb: hostrcb struct
945 *
946 * This function will send a Host Controlled Async command to the adapter.
947 * If HCAMs are currently not allowed to be issued to the adapter, it will
948 * place the hostrcb on the free queue.
949 *
950 * Return value:
951 * none
952 **/
953static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
954 struct ipr_hostrcb *hostrcb)
955{
956 struct ipr_cmnd *ipr_cmd;
957 struct ipr_ioarcb *ioarcb;
958
959 if (ioa_cfg->allow_cmds) {
960 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
961 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
962 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
963
964 ipr_cmd->u.hostrcb = hostrcb;
965 ioarcb = &ipr_cmd->ioarcb;
966
967 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
969 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
970 ioarcb->cmd_pkt.cdb[1] = type;
971 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
972 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
973
Wayne Boyera32c0552010-02-19 13:23:36 -0800974 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
975 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976
977 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
978 ipr_cmd->done = ipr_process_ccn;
979 else
980 ipr_cmd->done = ipr_process_error;
981
982 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
983
984 mb();
Wayne Boyera32c0552010-02-19 13:23:36 -0800985
986 ipr_send_command(ipr_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987 } else {
988 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
989 }
990}
991
992/**
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -0800993 * ipr_update_ata_class - Update the ata class in the resource entry
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994 * @res: resource entry struct
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -0800995 * @proto: cfgte device bus protocol value
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996 *
997 * Return value:
998 * none
999 **/
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001000static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001{
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001002 switch(proto) {
1003 case IPR_PROTO_SATA:
1004 case IPR_PROTO_SAS_STP:
1005 res->ata_class = ATA_DEV_ATA;
1006 break;
1007 case IPR_PROTO_SATA_ATAPI:
1008 case IPR_PROTO_SAS_STP_ATAPI:
1009 res->ata_class = ATA_DEV_ATAPI;
1010 break;
1011 default:
1012 res->ata_class = ATA_DEV_UNKNOWN;
1013 break;
1014 };
1015}
1016
1017/**
1018 * ipr_init_res_entry - Initialize a resource entry struct.
1019 * @res: resource entry struct
1020 * @cfgtew: config table entry wrapper struct
1021 *
1022 * Return value:
1023 * none
1024 **/
1025static void ipr_init_res_entry(struct ipr_resource_entry *res,
1026 struct ipr_config_table_entry_wrapper *cfgtew)
1027{
1028 int found = 0;
1029 unsigned int proto;
1030 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1031 struct ipr_resource_entry *gscsi_res = NULL;
1032
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06001033 res->needs_sync_complete = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001034 res->in_erp = 0;
1035 res->add_to_ml = 0;
1036 res->del_from_ml = 0;
1037 res->resetting_device = 0;
1038 res->sdev = NULL;
Brian King35a39692006-09-25 12:39:20 -05001039 res->sata_port = NULL;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001040
1041 if (ioa_cfg->sis64) {
1042 proto = cfgtew->u.cfgte64->proto;
1043 res->res_flags = cfgtew->u.cfgte64->res_flags;
1044 res->qmodel = IPR_QUEUEING_MODEL64(res);
Wayne Boyer438b0332010-05-10 09:13:00 -07001045 res->type = cfgtew->u.cfgte64->res_type;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001046
1047 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1048 sizeof(res->res_path));
1049
1050 res->bus = 0;
1051 res->lun = scsilun_to_int(&res->dev_lun);
1052
1053 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1054 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1055 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1056 found = 1;
1057 res->target = gscsi_res->target;
1058 break;
1059 }
1060 }
1061 if (!found) {
1062 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1063 ioa_cfg->max_devs_supported);
1064 set_bit(res->target, ioa_cfg->target_ids);
1065 }
1066
1067 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1068 sizeof(res->dev_lun.scsi_lun));
1069 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1070 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1071 res->target = 0;
1072 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1073 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1074 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1075 ioa_cfg->max_devs_supported);
1076 set_bit(res->target, ioa_cfg->array_ids);
1077 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1078 res->bus = IPR_VSET_VIRTUAL_BUS;
1079 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1080 ioa_cfg->max_devs_supported);
1081 set_bit(res->target, ioa_cfg->vset_ids);
1082 } else {
1083 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1084 ioa_cfg->max_devs_supported);
1085 set_bit(res->target, ioa_cfg->target_ids);
1086 }
1087 } else {
1088 proto = cfgtew->u.cfgte->proto;
1089 res->qmodel = IPR_QUEUEING_MODEL(res);
1090 res->flags = cfgtew->u.cfgte->flags;
1091 if (res->flags & IPR_IS_IOA_RESOURCE)
1092 res->type = IPR_RES_TYPE_IOAFP;
1093 else
1094 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1095
1096 res->bus = cfgtew->u.cfgte->res_addr.bus;
1097 res->target = cfgtew->u.cfgte->res_addr.target;
1098 res->lun = cfgtew->u.cfgte->res_addr.lun;
1099 }
1100
1101 ipr_update_ata_class(res, proto);
1102}
1103
1104/**
1105 * ipr_is_same_device - Determine if two devices are the same.
1106 * @res: resource entry struct
1107 * @cfgtew: config table entry wrapper struct
1108 *
1109 * Return value:
1110 * 1 if the devices are the same / 0 otherwise
1111 **/
1112static int ipr_is_same_device(struct ipr_resource_entry *res,
1113 struct ipr_config_table_entry_wrapper *cfgtew)
1114{
1115 if (res->ioa_cfg->sis64) {
1116 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1117 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1118 !memcmp(&res->lun, &cfgtew->u.cfgte64->lun,
1119 sizeof(cfgtew->u.cfgte64->lun))) {
1120 return 1;
1121 }
1122 } else {
1123 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1124 res->target == cfgtew->u.cfgte->res_addr.target &&
1125 res->lun == cfgtew->u.cfgte->res_addr.lun)
1126 return 1;
1127 }
1128
1129 return 0;
1130}
1131
1132/**
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001133 * ipr_format_res_path - Format the resource path for printing.
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001134 * @res_path: resource path
1135 * @buf: buffer
1136 *
1137 * Return value:
1138 * pointer to buffer
1139 **/
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001140static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001141{
1142 int i;
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001143 char *p = buffer;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001144
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001145 res_path[0] = '\0';
1146 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1147 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1148 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001149
1150 return buffer;
1151}
1152
1153/**
1154 * ipr_update_res_entry - Update the resource entry.
1155 * @res: resource entry struct
1156 * @cfgtew: config table entry wrapper struct
1157 *
1158 * Return value:
1159 * none
1160 **/
1161static void ipr_update_res_entry(struct ipr_resource_entry *res,
1162 struct ipr_config_table_entry_wrapper *cfgtew)
1163{
1164 char buffer[IPR_MAX_RES_PATH_LENGTH];
1165 unsigned int proto;
1166 int new_path = 0;
1167
1168 if (res->ioa_cfg->sis64) {
1169 res->flags = cfgtew->u.cfgte64->flags;
1170 res->res_flags = cfgtew->u.cfgte64->res_flags;
1171 res->type = cfgtew->u.cfgte64->res_type & 0x0f;
1172
1173 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1174 sizeof(struct ipr_std_inq_data));
1175
1176 res->qmodel = IPR_QUEUEING_MODEL64(res);
1177 proto = cfgtew->u.cfgte64->proto;
1178 res->res_handle = cfgtew->u.cfgte64->res_handle;
1179 res->dev_id = cfgtew->u.cfgte64->dev_id;
1180
1181 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1182 sizeof(res->dev_lun.scsi_lun));
1183
1184 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1185 sizeof(res->res_path))) {
1186 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1187 sizeof(res->res_path));
1188 new_path = 1;
1189 }
1190
1191 if (res->sdev && new_path)
1192 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001193 ipr_format_res_path(res->res_path, buffer,
1194 sizeof(buffer)));
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001195 } else {
1196 res->flags = cfgtew->u.cfgte->flags;
1197 if (res->flags & IPR_IS_IOA_RESOURCE)
1198 res->type = IPR_RES_TYPE_IOAFP;
1199 else
1200 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1201
1202 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1203 sizeof(struct ipr_std_inq_data));
1204
1205 res->qmodel = IPR_QUEUEING_MODEL(res);
1206 proto = cfgtew->u.cfgte->proto;
1207 res->res_handle = cfgtew->u.cfgte->res_handle;
1208 }
1209
1210 ipr_update_ata_class(res, proto);
1211}
1212
1213/**
1214 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1215 * for the resource.
1216 * @res: resource entry struct
1217 * @cfgtew: config table entry wrapper struct
1218 *
1219 * Return value:
1220 * none
1221 **/
1222static void ipr_clear_res_target(struct ipr_resource_entry *res)
1223{
1224 struct ipr_resource_entry *gscsi_res = NULL;
1225 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1226
1227 if (!ioa_cfg->sis64)
1228 return;
1229
1230 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1231 clear_bit(res->target, ioa_cfg->array_ids);
1232 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1233 clear_bit(res->target, ioa_cfg->vset_ids);
1234 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1235 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1236 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1237 return;
1238 clear_bit(res->target, ioa_cfg->target_ids);
1239
1240 } else if (res->bus == 0)
1241 clear_bit(res->target, ioa_cfg->target_ids);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001242}
1243
1244/**
1245 * ipr_handle_config_change - Handle a config change from the adapter
1246 * @ioa_cfg: ioa config struct
1247 * @hostrcb: hostrcb
1248 *
1249 * Return value:
1250 * none
1251 **/
1252static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001253 struct ipr_hostrcb *hostrcb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254{
1255 struct ipr_resource_entry *res = NULL;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001256 struct ipr_config_table_entry_wrapper cfgtew;
1257 __be32 cc_res_handle;
1258
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 u32 is_ndn = 1;
1260
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001261 if (ioa_cfg->sis64) {
1262 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1263 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1264 } else {
1265 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1266 cc_res_handle = cfgtew.u.cfgte->res_handle;
1267 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268
1269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001270 if (res->res_handle == cc_res_handle) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 is_ndn = 0;
1272 break;
1273 }
1274 }
1275
1276 if (is_ndn) {
1277 if (list_empty(&ioa_cfg->free_res_q)) {
1278 ipr_send_hcam(ioa_cfg,
1279 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1280 hostrcb);
1281 return;
1282 }
1283
1284 res = list_entry(ioa_cfg->free_res_q.next,
1285 struct ipr_resource_entry, queue);
1286
1287 list_del(&res->queue);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001288 ipr_init_res_entry(res, &cfgtew);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001289 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1290 }
1291
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001292 ipr_update_res_entry(res, &cfgtew);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293
1294 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1295 if (res->sdev) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001296 res->del_from_ml = 1;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001297 res->res_handle = IPR_INVALID_RES_HANDLE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298 if (ioa_cfg->allow_ml_add_del)
1299 schedule_work(&ioa_cfg->work_q);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001300 } else {
1301 ipr_clear_res_target(res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001303 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304 } else if (!res->sdev) {
1305 res->add_to_ml = 1;
1306 if (ioa_cfg->allow_ml_add_del)
1307 schedule_work(&ioa_cfg->work_q);
1308 }
1309
1310 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1311}
1312
1313/**
1314 * ipr_process_ccn - Op done function for a CCN.
1315 * @ipr_cmd: ipr command struct
1316 *
1317 * This function is the op done function for a configuration
1318 * change notification host controlled async from the adapter.
1319 *
1320 * Return value:
1321 * none
1322 **/
1323static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1324{
1325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1326 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
Wayne Boyer96d21f02010-05-10 09:13:27 -07001327 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328
1329 list_del(&hostrcb->queue);
1330 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1331
1332 if (ioasc) {
1333 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1334 dev_err(&ioa_cfg->pdev->dev,
1335 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1336
1337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1338 } else {
1339 ipr_handle_config_change(ioa_cfg, hostrcb);
1340 }
1341}
1342
1343/**
Brian King8cf093e2007-04-26 16:00:14 -05001344 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1345 * @i: index into buffer
1346 * @buf: string to modify
1347 *
1348 * This function will strip all trailing whitespace, pad the end
1349 * of the string with a single space, and NULL terminate the string.
1350 *
1351 * Return value:
1352 * new length of string
1353 **/
1354static int strip_and_pad_whitespace(int i, char *buf)
1355{
1356 while (i && buf[i] == ' ')
1357 i--;
1358 buf[i+1] = ' ';
1359 buf[i+2] = '\0';
1360 return i + 2;
1361}
1362
1363/**
1364 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1365 * @prefix: string to print at start of printk
1366 * @hostrcb: hostrcb pointer
1367 * @vpd: vendor/product id/sn struct
1368 *
1369 * Return value:
1370 * none
1371 **/
1372static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1373 struct ipr_vpd *vpd)
1374{
1375 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1376 int i = 0;
1377
1378 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1379 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1380
1381 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1382 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1383
1384 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1385 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1386
1387 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1388}
1389
1390/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001391 * ipr_log_vpd - Log the passed VPD to the error log.
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001392 * @vpd: vendor/product id/sn struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07001393 *
1394 * Return value:
1395 * none
1396 **/
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001397static void ipr_log_vpd(struct ipr_vpd *vpd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001398{
1399 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1400 + IPR_SERIAL_NUM_LEN];
1401
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001402 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1403 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 IPR_PROD_ID_LEN);
1405 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1406 ipr_err("Vendor/Product ID: %s\n", buffer);
1407
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001408 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001409 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1410 ipr_err(" Serial Number: %s\n", buffer);
1411}
1412
1413/**
Brian King8cf093e2007-04-26 16:00:14 -05001414 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1415 * @prefix: string to print at start of printk
1416 * @hostrcb: hostrcb pointer
1417 * @vpd: vendor/product id/sn/wwn struct
1418 *
1419 * Return value:
1420 * none
1421 **/
1422static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1423 struct ipr_ext_vpd *vpd)
1424{
1425 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1426 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1427 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1428}
1429
1430/**
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001431 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1432 * @vpd: vendor/product id/sn/wwn struct
1433 *
1434 * Return value:
1435 * none
1436 **/
1437static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1438{
1439 ipr_log_vpd(&vpd->vpd);
1440 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1441 be32_to_cpu(vpd->wwid[1]));
1442}
1443
1444/**
1445 * ipr_log_enhanced_cache_error - Log a cache error.
1446 * @ioa_cfg: ioa config struct
1447 * @hostrcb: hostrcb struct
1448 *
1449 * Return value:
1450 * none
1451 **/
1452static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1453 struct ipr_hostrcb *hostrcb)
1454{
Wayne Boyer4565e372010-02-19 13:24:07 -08001455 struct ipr_hostrcb_type_12_error *error;
1456
1457 if (ioa_cfg->sis64)
1458 error = &hostrcb->hcam.u.error64.u.type_12_error;
1459 else
1460 error = &hostrcb->hcam.u.error.u.type_12_error;
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001461
1462 ipr_err("-----Current Configuration-----\n");
1463 ipr_err("Cache Directory Card Information:\n");
1464 ipr_log_ext_vpd(&error->ioa_vpd);
1465 ipr_err("Adapter Card Information:\n");
1466 ipr_log_ext_vpd(&error->cfc_vpd);
1467
1468 ipr_err("-----Expected Configuration-----\n");
1469 ipr_err("Cache Directory Card Information:\n");
1470 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1471 ipr_err("Adapter Card Information:\n");
1472 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1473
1474 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1475 be32_to_cpu(error->ioa_data[0]),
1476 be32_to_cpu(error->ioa_data[1]),
1477 be32_to_cpu(error->ioa_data[2]));
1478}
1479
1480/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001481 * ipr_log_cache_error - Log a cache error.
1482 * @ioa_cfg: ioa config struct
1483 * @hostrcb: hostrcb struct
1484 *
1485 * Return value:
1486 * none
1487 **/
1488static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1489 struct ipr_hostrcb *hostrcb)
1490{
1491 struct ipr_hostrcb_type_02_error *error =
1492 &hostrcb->hcam.u.error.u.type_02_error;
1493
1494 ipr_err("-----Current Configuration-----\n");
1495 ipr_err("Cache Directory Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001496 ipr_log_vpd(&error->ioa_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497 ipr_err("Adapter Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001498 ipr_log_vpd(&error->cfc_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001499
1500 ipr_err("-----Expected Configuration-----\n");
1501 ipr_err("Cache Directory Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001502 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001503 ipr_err("Adapter Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001504 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001505
1506 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1507 be32_to_cpu(error->ioa_data[0]),
1508 be32_to_cpu(error->ioa_data[1]),
1509 be32_to_cpu(error->ioa_data[2]));
1510}
1511
1512/**
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001513 * ipr_log_enhanced_config_error - Log a configuration error.
1514 * @ioa_cfg: ioa config struct
1515 * @hostrcb: hostrcb struct
1516 *
1517 * Return value:
1518 * none
1519 **/
1520static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1521 struct ipr_hostrcb *hostrcb)
1522{
1523 int errors_logged, i;
1524 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1525 struct ipr_hostrcb_type_13_error *error;
1526
1527 error = &hostrcb->hcam.u.error.u.type_13_error;
1528 errors_logged = be32_to_cpu(error->errors_logged);
1529
1530 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1531 be32_to_cpu(error->errors_detected), errors_logged);
1532
1533 dev_entry = error->dev;
1534
1535 for (i = 0; i < errors_logged; i++, dev_entry++) {
1536 ipr_err_separator;
1537
1538 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1539 ipr_log_ext_vpd(&dev_entry->vpd);
1540
1541 ipr_err("-----New Device Information-----\n");
1542 ipr_log_ext_vpd(&dev_entry->new_vpd);
1543
1544 ipr_err("Cache Directory Card Information:\n");
1545 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1546
1547 ipr_err("Adapter Card Information:\n");
1548 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1549 }
1550}
1551
1552/**
Wayne Boyer4565e372010-02-19 13:24:07 -08001553 * ipr_log_sis64_config_error - Log a device error.
1554 * @ioa_cfg: ioa config struct
1555 * @hostrcb: hostrcb struct
1556 *
1557 * Return value:
1558 * none
1559 **/
1560static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1561 struct ipr_hostrcb *hostrcb)
1562{
1563 int errors_logged, i;
1564 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1565 struct ipr_hostrcb_type_23_error *error;
1566 char buffer[IPR_MAX_RES_PATH_LENGTH];
1567
1568 error = &hostrcb->hcam.u.error64.u.type_23_error;
1569 errors_logged = be32_to_cpu(error->errors_logged);
1570
1571 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1572 be32_to_cpu(error->errors_detected), errors_logged);
1573
1574 dev_entry = error->dev;
1575
1576 for (i = 0; i < errors_logged; i++, dev_entry++) {
1577 ipr_err_separator;
1578
1579 ipr_err("Device %d : %s", i + 1,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001580 ipr_format_res_path(dev_entry->res_path, buffer,
1581 sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08001582 ipr_log_ext_vpd(&dev_entry->vpd);
1583
1584 ipr_err("-----New Device Information-----\n");
1585 ipr_log_ext_vpd(&dev_entry->new_vpd);
1586
1587 ipr_err("Cache Directory Card Information:\n");
1588 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1589
1590 ipr_err("Adapter Card Information:\n");
1591 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1592 }
1593}
1594
1595/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001596 * ipr_log_config_error - Log a configuration error.
1597 * @ioa_cfg: ioa config struct
1598 * @hostrcb: hostrcb struct
1599 *
1600 * Return value:
1601 * none
1602 **/
1603static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1604 struct ipr_hostrcb *hostrcb)
1605{
1606 int errors_logged, i;
1607 struct ipr_hostrcb_device_data_entry *dev_entry;
1608 struct ipr_hostrcb_type_03_error *error;
1609
1610 error = &hostrcb->hcam.u.error.u.type_03_error;
1611 errors_logged = be32_to_cpu(error->errors_logged);
1612
1613 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1614 be32_to_cpu(error->errors_detected), errors_logged);
1615
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001616 dev_entry = error->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001617
1618 for (i = 0; i < errors_logged; i++, dev_entry++) {
1619 ipr_err_separator;
1620
brking@us.ibm.comfa15b1f2005-11-01 17:00:27 -06001621 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001622 ipr_log_vpd(&dev_entry->vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001623
1624 ipr_err("-----New Device Information-----\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001625 ipr_log_vpd(&dev_entry->new_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001626
1627 ipr_err("Cache Directory Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001628 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001629
1630 ipr_err("Adapter Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001631 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001632
1633 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1634 be32_to_cpu(dev_entry->ioa_data[0]),
1635 be32_to_cpu(dev_entry->ioa_data[1]),
1636 be32_to_cpu(dev_entry->ioa_data[2]),
1637 be32_to_cpu(dev_entry->ioa_data[3]),
1638 be32_to_cpu(dev_entry->ioa_data[4]));
1639 }
1640}
1641
1642/**
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001643 * ipr_log_enhanced_array_error - Log an array configuration error.
1644 * @ioa_cfg: ioa config struct
1645 * @hostrcb: hostrcb struct
1646 *
1647 * Return value:
1648 * none
1649 **/
1650static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1651 struct ipr_hostrcb *hostrcb)
1652{
1653 int i, num_entries;
1654 struct ipr_hostrcb_type_14_error *error;
1655 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1656 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1657
1658 error = &hostrcb->hcam.u.error.u.type_14_error;
1659
1660 ipr_err_separator;
1661
1662 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1663 error->protection_level,
1664 ioa_cfg->host->host_no,
1665 error->last_func_vset_res_addr.bus,
1666 error->last_func_vset_res_addr.target,
1667 error->last_func_vset_res_addr.lun);
1668
1669 ipr_err_separator;
1670
1671 array_entry = error->array_member;
1672 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1673 sizeof(error->array_member));
1674
1675 for (i = 0; i < num_entries; i++, array_entry++) {
1676 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1677 continue;
1678
1679 if (be32_to_cpu(error->exposed_mode_adn) == i)
1680 ipr_err("Exposed Array Member %d:\n", i);
1681 else
1682 ipr_err("Array Member %d:\n", i);
1683
1684 ipr_log_ext_vpd(&array_entry->vpd);
1685 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1686 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1687 "Expected Location");
1688
1689 ipr_err_separator;
1690 }
1691}
1692
1693/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001694 * ipr_log_array_error - Log an array configuration error.
1695 * @ioa_cfg: ioa config struct
1696 * @hostrcb: hostrcb struct
1697 *
1698 * Return value:
1699 * none
1700 **/
1701static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1702 struct ipr_hostrcb *hostrcb)
1703{
1704 int i;
1705 struct ipr_hostrcb_type_04_error *error;
1706 struct ipr_hostrcb_array_data_entry *array_entry;
1707 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1708
1709 error = &hostrcb->hcam.u.error.u.type_04_error;
1710
1711 ipr_err_separator;
1712
1713 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1714 error->protection_level,
1715 ioa_cfg->host->host_no,
1716 error->last_func_vset_res_addr.bus,
1717 error->last_func_vset_res_addr.target,
1718 error->last_func_vset_res_addr.lun);
1719
1720 ipr_err_separator;
1721
1722 array_entry = error->array_member;
1723
1724 for (i = 0; i < 18; i++) {
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001725 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001726 continue;
1727
brking@us.ibm.comfa15b1f2005-11-01 17:00:27 -06001728 if (be32_to_cpu(error->exposed_mode_adn) == i)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729 ipr_err("Exposed Array Member %d:\n", i);
brking@us.ibm.comfa15b1f2005-11-01 17:00:27 -06001730 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731 ipr_err("Array Member %d:\n", i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001733 ipr_log_vpd(&array_entry->vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734
brking@us.ibm.comfa15b1f2005-11-01 17:00:27 -06001735 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1736 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1737 "Expected Location");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738
1739 ipr_err_separator;
1740
1741 if (i == 9)
1742 array_entry = error->array_member2;
1743 else
1744 array_entry++;
1745 }
1746}
1747
1748/**
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001749 * ipr_log_hex_data - Log additional hex IOA error data.
Brian Kingac719ab2006-11-21 10:28:42 -06001750 * @ioa_cfg: ioa config struct
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001751 * @data: IOA error data
1752 * @len: data length
1753 *
1754 * Return value:
1755 * none
1756 **/
Brian Kingac719ab2006-11-21 10:28:42 -06001757static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001758{
1759 int i;
1760
1761 if (len == 0)
1762 return;
1763
Brian Kingac719ab2006-11-21 10:28:42 -06001764 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1765 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1766
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001767 for (i = 0; i < len / 4; i += 4) {
1768 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1769 be32_to_cpu(data[i]),
1770 be32_to_cpu(data[i+1]),
1771 be32_to_cpu(data[i+2]),
1772 be32_to_cpu(data[i+3]));
1773 }
1774}
1775
1776/**
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001777 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1778 * @ioa_cfg: ioa config struct
1779 * @hostrcb: hostrcb struct
1780 *
1781 * Return value:
1782 * none
1783 **/
1784static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1785 struct ipr_hostrcb *hostrcb)
1786{
1787 struct ipr_hostrcb_type_17_error *error;
1788
Wayne Boyer4565e372010-02-19 13:24:07 -08001789 if (ioa_cfg->sis64)
1790 error = &hostrcb->hcam.u.error64.u.type_17_error;
1791 else
1792 error = &hostrcb->hcam.u.error.u.type_17_error;
1793
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001794 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
KOSAKI Motohiroca54cb82009-12-14 18:01:15 -08001795 strim(error->failure_reason);
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001796
Brian King8cf093e2007-04-26 16:00:14 -05001797 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1798 be32_to_cpu(hostrcb->hcam.u.error.prc));
1799 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
Brian Kingac719ab2006-11-21 10:28:42 -06001800 ipr_log_hex_data(ioa_cfg, error->data,
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001801 be32_to_cpu(hostrcb->hcam.length) -
1802 (offsetof(struct ipr_hostrcb_error, u) +
1803 offsetof(struct ipr_hostrcb_type_17_error, data)));
1804}
1805
1806/**
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001807 * ipr_log_dual_ioa_error - Log a dual adapter error.
1808 * @ioa_cfg: ioa config struct
1809 * @hostrcb: hostrcb struct
1810 *
1811 * Return value:
1812 * none
1813 **/
1814static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1815 struct ipr_hostrcb *hostrcb)
1816{
1817 struct ipr_hostrcb_type_07_error *error;
1818
1819 error = &hostrcb->hcam.u.error.u.type_07_error;
1820 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
KOSAKI Motohiroca54cb82009-12-14 18:01:15 -08001821 strim(error->failure_reason);
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001822
Brian King8cf093e2007-04-26 16:00:14 -05001823 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1824 be32_to_cpu(hostrcb->hcam.u.error.prc));
1825 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
Brian Kingac719ab2006-11-21 10:28:42 -06001826 ipr_log_hex_data(ioa_cfg, error->data,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001827 be32_to_cpu(hostrcb->hcam.length) -
1828 (offsetof(struct ipr_hostrcb_error, u) +
1829 offsetof(struct ipr_hostrcb_type_07_error, data)));
1830}
1831
Brian King49dc6a12006-11-21 10:28:35 -06001832static const struct {
1833 u8 active;
1834 char *desc;
1835} path_active_desc[] = {
1836 { IPR_PATH_NO_INFO, "Path" },
1837 { IPR_PATH_ACTIVE, "Active path" },
1838 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1839};
1840
1841static const struct {
1842 u8 state;
1843 char *desc;
1844} path_state_desc[] = {
1845 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1846 { IPR_PATH_HEALTHY, "is healthy" },
1847 { IPR_PATH_DEGRADED, "is degraded" },
1848 { IPR_PATH_FAILED, "is failed" }
1849};
1850
1851/**
1852 * ipr_log_fabric_path - Log a fabric path error
1853 * @hostrcb: hostrcb struct
1854 * @fabric: fabric descriptor
1855 *
1856 * Return value:
1857 * none
1858 **/
1859static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1860 struct ipr_hostrcb_fabric_desc *fabric)
1861{
1862 int i, j;
1863 u8 path_state = fabric->path_state;
1864 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1865 u8 state = path_state & IPR_PATH_STATE_MASK;
1866
1867 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1868 if (path_active_desc[i].active != active)
1869 continue;
1870
1871 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1872 if (path_state_desc[j].state != state)
1873 continue;
1874
1875 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1876 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1877 path_active_desc[i].desc, path_state_desc[j].desc,
1878 fabric->ioa_port);
1879 } else if (fabric->cascaded_expander == 0xff) {
1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1881 path_active_desc[i].desc, path_state_desc[j].desc,
1882 fabric->ioa_port, fabric->phy);
1883 } else if (fabric->phy == 0xff) {
1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1885 path_active_desc[i].desc, path_state_desc[j].desc,
1886 fabric->ioa_port, fabric->cascaded_expander);
1887 } else {
1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1889 path_active_desc[i].desc, path_state_desc[j].desc,
1890 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1891 }
1892 return;
1893 }
1894 }
1895
1896 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1897 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1898}
1899
Wayne Boyer4565e372010-02-19 13:24:07 -08001900/**
1901 * ipr_log64_fabric_path - Log a fabric path error
1902 * @hostrcb: hostrcb struct
1903 * @fabric: fabric descriptor
1904 *
1905 * Return value:
1906 * none
1907 **/
1908static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1909 struct ipr_hostrcb64_fabric_desc *fabric)
1910{
1911 int i, j;
1912 u8 path_state = fabric->path_state;
1913 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1914 u8 state = path_state & IPR_PATH_STATE_MASK;
1915 char buffer[IPR_MAX_RES_PATH_LENGTH];
1916
1917 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1918 if (path_active_desc[i].active != active)
1919 continue;
1920
1921 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1922 if (path_state_desc[j].state != state)
1923 continue;
1924
1925 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1926 path_active_desc[i].desc, path_state_desc[j].desc,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001927 ipr_format_res_path(fabric->res_path, buffer,
1928 sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08001929 return;
1930 }
1931 }
1932
1933 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001934 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08001935}
1936
Brian King49dc6a12006-11-21 10:28:35 -06001937static const struct {
1938 u8 type;
1939 char *desc;
1940} path_type_desc[] = {
1941 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1942 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1943 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1944 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1945};
1946
1947static const struct {
1948 u8 status;
1949 char *desc;
1950} path_status_desc[] = {
1951 { IPR_PATH_CFG_NO_PROB, "Functional" },
1952 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1953 { IPR_PATH_CFG_FAILED, "Failed" },
1954 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1955 { IPR_PATH_NOT_DETECTED, "Missing" },
1956 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1957};
1958
1959static const char *link_rate[] = {
1960 "unknown",
1961 "disabled",
1962 "phy reset problem",
1963 "spinup hold",
1964 "port selector",
1965 "unknown",
1966 "unknown",
1967 "unknown",
1968 "1.5Gbps",
1969 "3.0Gbps",
1970 "unknown",
1971 "unknown",
1972 "unknown",
1973 "unknown",
1974 "unknown",
1975 "unknown"
1976};
1977
1978/**
1979 * ipr_log_path_elem - Log a fabric path element.
1980 * @hostrcb: hostrcb struct
1981 * @cfg: fabric path element struct
1982 *
1983 * Return value:
1984 * none
1985 **/
1986static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1987 struct ipr_hostrcb_config_element *cfg)
1988{
1989 int i, j;
1990 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1991 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1992
1993 if (type == IPR_PATH_CFG_NOT_EXIST)
1994 return;
1995
1996 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1997 if (path_type_desc[i].type != type)
1998 continue;
1999
2000 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2001 if (path_status_desc[j].status != status)
2002 continue;
2003
2004 if (type == IPR_PATH_CFG_IOA_PORT) {
2005 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2006 path_status_desc[j].desc, path_type_desc[i].desc,
2007 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2009 } else {
2010 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2012 path_status_desc[j].desc, path_type_desc[i].desc,
2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2015 } else if (cfg->cascaded_expander == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2017 "WWN=%08X%08X\n", path_status_desc[j].desc,
2018 path_type_desc[i].desc, cfg->phy,
2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2021 } else if (cfg->phy == 0xff) {
2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2023 "WWN=%08X%08X\n", path_status_desc[j].desc,
2024 path_type_desc[i].desc, cfg->cascaded_expander,
2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2027 } else {
2028 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2029 "WWN=%08X%08X\n", path_status_desc[j].desc,
2030 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2033 }
2034 }
2035 return;
2036 }
2037 }
2038
2039 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2040 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2041 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2042 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2043}
2044
2045/**
Wayne Boyer4565e372010-02-19 13:24:07 -08002046 * ipr_log64_path_elem - Log a fabric path element.
2047 * @hostrcb: hostrcb struct
2048 * @cfg: fabric path element struct
2049 *
2050 * Return value:
2051 * none
2052 **/
2053static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2054 struct ipr_hostrcb64_config_element *cfg)
2055{
2056 int i, j;
2057 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2058 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2059 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2060 char buffer[IPR_MAX_RES_PATH_LENGTH];
2061
2062 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2063 return;
2064
2065 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2066 if (path_type_desc[i].type != type)
2067 continue;
2068
2069 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2070 if (path_status_desc[j].status != status)
2071 continue;
2072
2073 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2074 path_status_desc[j].desc, path_type_desc[i].desc,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002075 ipr_format_res_path(cfg->res_path, buffer,
2076 sizeof(buffer)),
Wayne Boyer4565e372010-02-19 13:24:07 -08002077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2079 return;
2080 }
2081 }
2082 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2083 "WWN=%08X%08X\n", cfg->type_status,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002084 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
Wayne Boyer4565e372010-02-19 13:24:07 -08002085 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2086 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2087}
2088
2089/**
Brian King49dc6a12006-11-21 10:28:35 -06002090 * ipr_log_fabric_error - Log a fabric error.
2091 * @ioa_cfg: ioa config struct
2092 * @hostrcb: hostrcb struct
2093 *
2094 * Return value:
2095 * none
2096 **/
2097static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2098 struct ipr_hostrcb *hostrcb)
2099{
2100 struct ipr_hostrcb_type_20_error *error;
2101 struct ipr_hostrcb_fabric_desc *fabric;
2102 struct ipr_hostrcb_config_element *cfg;
2103 int i, add_len;
2104
2105 error = &hostrcb->hcam.u.error.u.type_20_error;
2106 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2107 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2108
2109 add_len = be32_to_cpu(hostrcb->hcam.length) -
2110 (offsetof(struct ipr_hostrcb_error, u) +
2111 offsetof(struct ipr_hostrcb_type_20_error, desc));
2112
2113 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2114 ipr_log_fabric_path(hostrcb, fabric);
2115 for_each_fabric_cfg(fabric, cfg)
2116 ipr_log_path_elem(hostrcb, cfg);
2117
2118 add_len -= be16_to_cpu(fabric->length);
2119 fabric = (struct ipr_hostrcb_fabric_desc *)
2120 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2121 }
2122
Brian Kingac719ab2006-11-21 10:28:42 -06002123 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
Brian King49dc6a12006-11-21 10:28:35 -06002124}
2125
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06002126/**
Wayne Boyer4565e372010-02-19 13:24:07 -08002127 * ipr_log_sis64_array_error - Log a sis64 array error.
2128 * @ioa_cfg: ioa config struct
2129 * @hostrcb: hostrcb struct
2130 *
2131 * Return value:
2132 * none
2133 **/
2134static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2135 struct ipr_hostrcb *hostrcb)
2136{
2137 int i, num_entries;
2138 struct ipr_hostrcb_type_24_error *error;
2139 struct ipr_hostrcb64_array_data_entry *array_entry;
2140 char buffer[IPR_MAX_RES_PATH_LENGTH];
2141 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2142
2143 error = &hostrcb->hcam.u.error64.u.type_24_error;
2144
2145 ipr_err_separator;
2146
2147 ipr_err("RAID %s Array Configuration: %s\n",
2148 error->protection_level,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002149 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08002150
2151 ipr_err_separator;
2152
2153 array_entry = error->array_member;
2154 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
2155 sizeof(error->array_member));
2156
2157 for (i = 0; i < num_entries; i++, array_entry++) {
2158
2159 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2160 continue;
2161
2162 if (error->exposed_mode_adn == i)
2163 ipr_err("Exposed Array Member %d:\n", i);
2164 else
2165 ipr_err("Array Member %d:\n", i);
2166
2167 ipr_err("Array Member %d:\n", i);
2168 ipr_log_ext_vpd(&array_entry->vpd);
2169 ipr_err("Current Location: %s",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002170 ipr_format_res_path(array_entry->res_path, buffer,
2171 sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08002172 ipr_err("Expected Location: %s",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002173 ipr_format_res_path(array_entry->expected_res_path,
2174 buffer, sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08002175
2176 ipr_err_separator;
2177 }
2178}
2179
2180/**
2181 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2182 * @ioa_cfg: ioa config struct
2183 * @hostrcb: hostrcb struct
2184 *
2185 * Return value:
2186 * none
2187 **/
2188static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2189 struct ipr_hostrcb *hostrcb)
2190{
2191 struct ipr_hostrcb_type_30_error *error;
2192 struct ipr_hostrcb64_fabric_desc *fabric;
2193 struct ipr_hostrcb64_config_element *cfg;
2194 int i, add_len;
2195
2196 error = &hostrcb->hcam.u.error64.u.type_30_error;
2197
2198 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2199 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2200
2201 add_len = be32_to_cpu(hostrcb->hcam.length) -
2202 (offsetof(struct ipr_hostrcb64_error, u) +
2203 offsetof(struct ipr_hostrcb_type_30_error, desc));
2204
2205 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2206 ipr_log64_fabric_path(hostrcb, fabric);
2207 for_each_fabric_cfg(fabric, cfg)
2208 ipr_log64_path_elem(hostrcb, cfg);
2209
2210 add_len -= be16_to_cpu(fabric->length);
2211 fabric = (struct ipr_hostrcb64_fabric_desc *)
2212 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2213 }
2214
2215 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2216}
2217
2218/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002219 * ipr_log_generic_error - Log an adapter error.
2220 * @ioa_cfg: ioa config struct
2221 * @hostrcb: hostrcb struct
2222 *
2223 * Return value:
2224 * none
2225 **/
2226static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2227 struct ipr_hostrcb *hostrcb)
2228{
Brian Kingac719ab2006-11-21 10:28:42 -06002229 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06002230 be32_to_cpu(hostrcb->hcam.length));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002231}
2232
2233/**
2234 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2235 * @ioasc: IOASC
2236 *
2237 * This function will return the index of into the ipr_error_table
2238 * for the specified IOASC. If the IOASC is not in the table,
2239 * 0 will be returned, which points to the entry used for unknown errors.
2240 *
2241 * Return value:
2242 * index into the ipr_error_table
2243 **/
2244static u32 ipr_get_error(u32 ioasc)
2245{
2246 int i;
2247
2248 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
Brian King35a39692006-09-25 12:39:20 -05002249 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002250 return i;
2251
2252 return 0;
2253}
2254
2255/**
2256 * ipr_handle_log_data - Log an adapter error.
2257 * @ioa_cfg: ioa config struct
2258 * @hostrcb: hostrcb struct
2259 *
2260 * This function logs an adapter error to the system.
2261 *
2262 * Return value:
2263 * none
2264 **/
2265static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2266 struct ipr_hostrcb *hostrcb)
2267{
2268 u32 ioasc;
2269 int error_index;
2270
2271 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2272 return;
2273
2274 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2275 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2276
Wayne Boyer4565e372010-02-19 13:24:07 -08002277 if (ioa_cfg->sis64)
2278 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2279 else
2280 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002281
Wayne Boyer4565e372010-02-19 13:24:07 -08002282 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2283 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002284 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2285 scsi_report_bus_reset(ioa_cfg->host,
Wayne Boyer4565e372010-02-19 13:24:07 -08002286 hostrcb->hcam.u.error.fd_res_addr.bus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002287 }
2288
2289 error_index = ipr_get_error(ioasc);
2290
2291 if (!ipr_error_table[error_index].log_hcam)
2292 return;
2293
Brian King49dc6a12006-11-21 10:28:35 -06002294 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002295
2296 /* Set indication we have logged an error */
2297 ioa_cfg->errors_logged++;
2298
Brian King933916f2007-03-29 12:43:30 -05002299 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002300 return;
brking@us.ibm.comcf852032005-11-01 17:00:47 -06002301 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2302 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002303
2304 switch (hostrcb->hcam.overlay_id) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002305 case IPR_HOST_RCB_OVERLAY_ID_2:
2306 ipr_log_cache_error(ioa_cfg, hostrcb);
2307 break;
2308 case IPR_HOST_RCB_OVERLAY_ID_3:
2309 ipr_log_config_error(ioa_cfg, hostrcb);
2310 break;
2311 case IPR_HOST_RCB_OVERLAY_ID_4:
2312 case IPR_HOST_RCB_OVERLAY_ID_6:
2313 ipr_log_array_error(ioa_cfg, hostrcb);
2314 break;
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06002315 case IPR_HOST_RCB_OVERLAY_ID_7:
2316 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2317 break;
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06002318 case IPR_HOST_RCB_OVERLAY_ID_12:
2319 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2320 break;
2321 case IPR_HOST_RCB_OVERLAY_ID_13:
2322 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2323 break;
2324 case IPR_HOST_RCB_OVERLAY_ID_14:
2325 case IPR_HOST_RCB_OVERLAY_ID_16:
2326 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2327 break;
2328 case IPR_HOST_RCB_OVERLAY_ID_17:
2329 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2330 break;
Brian King49dc6a12006-11-21 10:28:35 -06002331 case IPR_HOST_RCB_OVERLAY_ID_20:
2332 ipr_log_fabric_error(ioa_cfg, hostrcb);
2333 break;
Wayne Boyer4565e372010-02-19 13:24:07 -08002334 case IPR_HOST_RCB_OVERLAY_ID_23:
2335 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2336 break;
2337 case IPR_HOST_RCB_OVERLAY_ID_24:
2338 case IPR_HOST_RCB_OVERLAY_ID_26:
2339 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2340 break;
2341 case IPR_HOST_RCB_OVERLAY_ID_30:
2342 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2343 break;
brking@us.ibm.comcf852032005-11-01 17:00:47 -06002344 case IPR_HOST_RCB_OVERLAY_ID_1:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002345 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346 default:
brking@us.ibm.coma9cfca92005-11-01 17:00:41 -06002347 ipr_log_generic_error(ioa_cfg, hostrcb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002348 break;
2349 }
2350}
2351
2352/**
2353 * ipr_process_error - Op done function for an adapter error log.
2354 * @ipr_cmd: ipr command struct
2355 *
2356 * This function is the op done function for an error log host
2357 * controlled async from the adapter. It will log the error and
2358 * send the HCAM back to the adapter.
2359 *
2360 * Return value:
2361 * none
2362 **/
2363static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2364{
2365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2366 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
Wayne Boyer96d21f02010-05-10 09:13:27 -07002367 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Wayne Boyer4565e372010-02-19 13:24:07 -08002368 u32 fd_ioasc;
2369
2370 if (ioa_cfg->sis64)
2371 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2372 else
2373 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002374
2375 list_del(&hostrcb->queue);
2376 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2377
2378 if (!ioasc) {
2379 ipr_handle_log_data(ioa_cfg, hostrcb);
Brian King65f56472007-04-26 16:00:12 -05002380 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002382 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2383 dev_err(&ioa_cfg->pdev->dev,
2384 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2385 }
2386
2387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2388}
2389
2390/**
2391 * ipr_timeout - An internally generated op has timed out.
2392 * @ipr_cmd: ipr command struct
2393 *
2394 * This function blocks host requests and initiates an
2395 * adapter reset.
2396 *
2397 * Return value:
2398 * none
2399 **/
2400static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2401{
2402 unsigned long lock_flags = 0;
2403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2404
2405 ENTER;
2406 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2407
2408 ioa_cfg->errors_logged++;
2409 dev_err(&ioa_cfg->pdev->dev,
2410 "Adapter being reset due to command timeout.\n");
2411
2412 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2413 ioa_cfg->sdt_state = GET_DUMP;
2414
2415 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2417
2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2419 LEAVE;
2420}
2421
2422/**
2423 * ipr_oper_timeout - Adapter timed out transitioning to operational
2424 * @ipr_cmd: ipr command struct
2425 *
2426 * This function blocks host requests and initiates an
2427 * adapter reset.
2428 *
2429 * Return value:
2430 * none
2431 **/
2432static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2433{
2434 unsigned long lock_flags = 0;
2435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2436
2437 ENTER;
2438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2439
2440 ioa_cfg->errors_logged++;
2441 dev_err(&ioa_cfg->pdev->dev,
2442 "Adapter timed out transitioning to operational.\n");
2443
2444 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2445 ioa_cfg->sdt_state = GET_DUMP;
2446
2447 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2448 if (ipr_fastfail)
2449 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2451 }
2452
2453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2454 LEAVE;
2455}
2456
2457/**
2458 * ipr_reset_reload - Reset/Reload the IOA
2459 * @ioa_cfg: ioa config struct
2460 * @shutdown_type: shutdown type
2461 *
2462 * This function resets the adapter and re-initializes it.
2463 * This function assumes that all new host commands have been stopped.
2464 * Return value:
2465 * SUCCESS / FAILED
2466 **/
2467static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2468 enum ipr_shutdown_type shutdown_type)
2469{
2470 if (!ioa_cfg->in_reset_reload)
2471 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2472
2473 spin_unlock_irq(ioa_cfg->host->host_lock);
2474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2475 spin_lock_irq(ioa_cfg->host->host_lock);
2476
2477 /* If we got hit with a host reset while we were already resetting
2478 the adapter for some reason, and the reset failed. */
2479 if (ioa_cfg->ioa_is_dead) {
2480 ipr_trace;
2481 return FAILED;
2482 }
2483
2484 return SUCCESS;
2485}
2486
2487/**
2488 * ipr_find_ses_entry - Find matching SES in SES table
2489 * @res: resource entry struct of SES
2490 *
2491 * Return value:
2492 * pointer to SES table entry / NULL on failure
2493 **/
2494static const struct ipr_ses_table_entry *
2495ipr_find_ses_entry(struct ipr_resource_entry *res)
2496{
2497 int i, j, matches;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08002498 struct ipr_std_inq_vpids *vpids;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002499 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2500
2501 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2502 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2503 if (ste->compare_product_id_byte[j] == 'X') {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08002504 vpids = &res->std_inq_data.vpids;
2505 if (vpids->product_id[j] == ste->product_id[j])
Linus Torvalds1da177e2005-04-16 15:20:36 -07002506 matches++;
2507 else
2508 break;
2509 } else
2510 matches++;
2511 }
2512
2513 if (matches == IPR_PROD_ID_LEN)
2514 return ste;
2515 }
2516
2517 return NULL;
2518}
2519
2520/**
2521 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2522 * @ioa_cfg: ioa config struct
2523 * @bus: SCSI bus
2524 * @bus_width: bus width
2525 *
2526 * Return value:
2527 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2528 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2529 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2530 * max 160MHz = max 320MB/sec).
2531 **/
2532static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2533{
2534 struct ipr_resource_entry *res;
2535 const struct ipr_ses_table_entry *ste;
2536 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2537
2538 /* Loop through each config table entry in the config table buffer */
2539 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08002540 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002541 continue;
2542
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08002543 if (bus != res->bus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002544 continue;
2545
2546 if (!(ste = ipr_find_ses_entry(res)))
2547 continue;
2548
2549 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2550 }
2551
2552 return max_xfer_rate;
2553}
2554
2555/**
2556 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2557 * @ioa_cfg: ioa config struct
2558 * @max_delay: max delay in micro-seconds to wait
2559 *
2560 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2561 *
2562 * Return value:
2563 * 0 on success / other on failure
2564 **/
2565static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2566{
2567 volatile u32 pcii_reg;
2568 int delay = 1;
2569
2570 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2571 while (delay < max_delay) {
2572 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2573
2574 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2575 return 0;
2576
2577 /* udelay cannot be used if delay is more than a few milliseconds */
2578 if ((delay / 1000) > MAX_UDELAY_MS)
2579 mdelay(delay / 1000);
2580 else
2581 udelay(delay);
2582
2583 delay += delay;
2584 }
2585 return -EIO;
2586}
2587
2588/**
Wayne Boyerdcbad002010-02-19 13:24:14 -08002589 * ipr_get_sis64_dump_data_section - Dump IOA memory
2590 * @ioa_cfg: ioa config struct
2591 * @start_addr: adapter address to dump
2592 * @dest: destination kernel buffer
2593 * @length_in_words: length to dump in 4 byte words
2594 *
2595 * Return value:
2596 * 0 on success
2597 **/
2598static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2599 u32 start_addr,
2600 __be32 *dest, u32 length_in_words)
2601{
2602 int i;
2603
2604 for (i = 0; i < length_in_words; i++) {
2605 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2606 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2607 dest++;
2608 }
2609
2610 return 0;
2611}
2612
2613/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002614 * ipr_get_ldump_data_section - Dump IOA memory
2615 * @ioa_cfg: ioa config struct
2616 * @start_addr: adapter address to dump
2617 * @dest: destination kernel buffer
2618 * @length_in_words: length to dump in 4 byte words
2619 *
2620 * Return value:
2621 * 0 on success / -EIO on failure
2622 **/
2623static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2624 u32 start_addr,
2625 __be32 *dest, u32 length_in_words)
2626{
2627 volatile u32 temp_pcii_reg;
2628 int i, delay = 0;
2629
Wayne Boyerdcbad002010-02-19 13:24:14 -08002630 if (ioa_cfg->sis64)
2631 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2632 dest, length_in_words);
2633
Linus Torvalds1da177e2005-04-16 15:20:36 -07002634 /* Write IOA interrupt reg starting LDUMP state */
2635 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
Wayne Boyer214777b2010-02-19 13:24:26 -08002636 ioa_cfg->regs.set_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002637
2638 /* Wait for IO debug acknowledge */
2639 if (ipr_wait_iodbg_ack(ioa_cfg,
2640 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2641 dev_err(&ioa_cfg->pdev->dev,
2642 "IOA dump long data transfer timeout\n");
2643 return -EIO;
2644 }
2645
2646 /* Signal LDUMP interlocked - clear IO debug ack */
2647 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2648 ioa_cfg->regs.clr_interrupt_reg);
2649
2650 /* Write Mailbox with starting address */
2651 writel(start_addr, ioa_cfg->ioa_mailbox);
2652
2653 /* Signal address valid - clear IOA Reset alert */
2654 writel(IPR_UPROCI_RESET_ALERT,
Wayne Boyer214777b2010-02-19 13:24:26 -08002655 ioa_cfg->regs.clr_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002656
2657 for (i = 0; i < length_in_words; i++) {
2658 /* Wait for IO debug acknowledge */
2659 if (ipr_wait_iodbg_ack(ioa_cfg,
2660 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2661 dev_err(&ioa_cfg->pdev->dev,
2662 "IOA dump short data transfer timeout\n");
2663 return -EIO;
2664 }
2665
2666 /* Read data from mailbox and increment destination pointer */
2667 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2668 dest++;
2669
2670 /* For all but the last word of data, signal data received */
2671 if (i < (length_in_words - 1)) {
2672 /* Signal dump data received - Clear IO debug Ack */
2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2674 ioa_cfg->regs.clr_interrupt_reg);
2675 }
2676 }
2677
2678 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2679 writel(IPR_UPROCI_RESET_ALERT,
Wayne Boyer214777b2010-02-19 13:24:26 -08002680 ioa_cfg->regs.set_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002681
2682 writel(IPR_UPROCI_IO_DEBUG_ALERT,
Wayne Boyer214777b2010-02-19 13:24:26 -08002683 ioa_cfg->regs.clr_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002684
2685 /* Signal dump data received - Clear IO debug Ack */
2686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2687 ioa_cfg->regs.clr_interrupt_reg);
2688
2689 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2690 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2691 temp_pcii_reg =
Wayne Boyer214777b2010-02-19 13:24:26 -08002692 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002693
2694 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2695 return 0;
2696
2697 udelay(10);
2698 delay += 10;
2699 }
2700
2701 return 0;
2702}
2703
2704#ifdef CONFIG_SCSI_IPR_DUMP
2705/**
2706 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2707 * @ioa_cfg: ioa config struct
2708 * @pci_address: adapter address
2709 * @length: length of data to copy
2710 *
2711 * Copy data from PCI adapter to kernel buffer.
2712 * Note: length MUST be a 4 byte multiple
2713 * Return value:
2714 * 0 on success / other on failure
2715 **/
2716static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2717 unsigned long pci_address, u32 length)
2718{
2719 int bytes_copied = 0;
2720 int cur_len, rc, rem_len, rem_page_len;
2721 __be32 *page;
2722 unsigned long lock_flags = 0;
2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2724
2725 while (bytes_copied < length &&
2726 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2727 if (ioa_dump->page_offset >= PAGE_SIZE ||
2728 ioa_dump->page_offset == 0) {
2729 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2730
2731 if (!page) {
2732 ipr_trace;
2733 return bytes_copied;
2734 }
2735
2736 ioa_dump->page_offset = 0;
2737 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2738 ioa_dump->next_page_index++;
2739 } else
2740 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2741
2742 rem_len = length - bytes_copied;
2743 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2744 cur_len = min(rem_len, rem_page_len);
2745
2746 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2747 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2748 rc = -EIO;
2749 } else {
2750 rc = ipr_get_ldump_data_section(ioa_cfg,
2751 pci_address + bytes_copied,
2752 &page[ioa_dump->page_offset / 4],
2753 (cur_len / sizeof(u32)));
2754 }
2755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2756
2757 if (!rc) {
2758 ioa_dump->page_offset += cur_len;
2759 bytes_copied += cur_len;
2760 } else {
2761 ipr_trace;
2762 break;
2763 }
2764 schedule();
2765 }
2766
2767 return bytes_copied;
2768}
2769
2770/**
2771 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2772 * @hdr: dump entry header struct
2773 *
2774 * Return value:
2775 * nothing
2776 **/
2777static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2778{
2779 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2780 hdr->num_elems = 1;
2781 hdr->offset = sizeof(*hdr);
2782 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2783}
2784
2785/**
2786 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2787 * @ioa_cfg: ioa config struct
2788 * @driver_dump: driver dump struct
2789 *
2790 * Return value:
2791 * nothing
2792 **/
2793static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2794 struct ipr_driver_dump *driver_dump)
2795{
2796 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2797
2798 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2799 driver_dump->ioa_type_entry.hdr.len =
2800 sizeof(struct ipr_dump_ioa_type_entry) -
2801 sizeof(struct ipr_dump_entry_header);
2802 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2803 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2804 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2805 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2806 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2807 ucode_vpd->minor_release[1];
2808 driver_dump->hdr.num_entries++;
2809}
2810
2811/**
2812 * ipr_dump_version_data - Fill in the driver version in the dump.
2813 * @ioa_cfg: ioa config struct
2814 * @driver_dump: driver dump struct
2815 *
2816 * Return value:
2817 * nothing
2818 **/
2819static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2820 struct ipr_driver_dump *driver_dump)
2821{
2822 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2823 driver_dump->version_entry.hdr.len =
2824 sizeof(struct ipr_dump_version_entry) -
2825 sizeof(struct ipr_dump_entry_header);
2826 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2827 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2828 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2829 driver_dump->hdr.num_entries++;
2830}
2831
2832/**
2833 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2834 * @ioa_cfg: ioa config struct
2835 * @driver_dump: driver dump struct
2836 *
2837 * Return value:
2838 * nothing
2839 **/
2840static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2841 struct ipr_driver_dump *driver_dump)
2842{
2843 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2844 driver_dump->trace_entry.hdr.len =
2845 sizeof(struct ipr_dump_trace_entry) -
2846 sizeof(struct ipr_dump_entry_header);
2847 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2848 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2849 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2850 driver_dump->hdr.num_entries++;
2851}
2852
2853/**
2854 * ipr_dump_location_data - Fill in the IOA location in the dump.
2855 * @ioa_cfg: ioa config struct
2856 * @driver_dump: driver dump struct
2857 *
2858 * Return value:
2859 * nothing
2860 **/
2861static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2862 struct ipr_driver_dump *driver_dump)
2863{
2864 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2865 driver_dump->location_entry.hdr.len =
2866 sizeof(struct ipr_dump_location_entry) -
2867 sizeof(struct ipr_dump_entry_header);
2868 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2869 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
Kay Sievers71610f52008-12-03 22:41:36 +01002870 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002871 driver_dump->hdr.num_entries++;
2872}
2873
2874/**
2875 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2876 * @ioa_cfg: ioa config struct
2877 * @dump: dump struct
2878 *
2879 * Return value:
2880 * nothing
2881 **/
2882static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2883{
2884 unsigned long start_addr, sdt_word;
2885 unsigned long lock_flags = 0;
2886 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2887 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2888 u32 num_entries, start_off, end_off;
2889 u32 bytes_to_copy, bytes_copied, rc;
2890 struct ipr_sdt *sdt;
Wayne Boyerdcbad002010-02-19 13:24:14 -08002891 int valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002892 int i;
2893
2894 ENTER;
2895
2896 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2897
2898 if (ioa_cfg->sdt_state != GET_DUMP) {
2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2900 return;
2901 }
2902
2903 start_addr = readl(ioa_cfg->ioa_mailbox);
2904
Wayne Boyerdcbad002010-02-19 13:24:14 -08002905 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002906 dev_err(&ioa_cfg->pdev->dev,
2907 "Invalid dump table format: %lx\n", start_addr);
2908 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2909 return;
2910 }
2911
2912 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2913
2914 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2915
2916 /* Initialize the overall dump header */
2917 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2918 driver_dump->hdr.num_entries = 1;
2919 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2920 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2921 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2922 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2923
2924 ipr_dump_version_data(ioa_cfg, driver_dump);
2925 ipr_dump_location_data(ioa_cfg, driver_dump);
2926 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2927 ipr_dump_trace_data(ioa_cfg, driver_dump);
2928
2929 /* Update dump_header */
2930 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2931
2932 /* IOA Dump entry */
2933 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002934 ioa_dump->hdr.len = 0;
2935 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2936 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2937
2938 /* First entries in sdt are actually a list of dump addresses and
2939 lengths to gather the real dump data. sdt represents the pointer
2940 to the ioa generated dump table. Dump data will be extracted based
2941 on entries in this table */
2942 sdt = &ioa_dump->sdt;
2943
2944 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2945 sizeof(struct ipr_sdt) / sizeof(__be32));
2946
2947 /* Smart Dump table is ready to use and the first entry is valid */
Wayne Boyerdcbad002010-02-19 13:24:14 -08002948 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2949 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002950 dev_err(&ioa_cfg->pdev->dev,
2951 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2952 rc, be32_to_cpu(sdt->hdr.state));
2953 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2954 ioa_cfg->sdt_state = DUMP_OBTAINED;
2955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2956 return;
2957 }
2958
2959 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2960
2961 if (num_entries > IPR_NUM_SDT_ENTRIES)
2962 num_entries = IPR_NUM_SDT_ENTRIES;
2963
2964 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2965
2966 for (i = 0; i < num_entries; i++) {
2967 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2968 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2969 break;
2970 }
2971
2972 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
Wayne Boyerdcbad002010-02-19 13:24:14 -08002973 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2974 if (ioa_cfg->sis64)
2975 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2976 else {
2977 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2978 end_off = be32_to_cpu(sdt->entry[i].end_token);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002979
Wayne Boyerdcbad002010-02-19 13:24:14 -08002980 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2981 bytes_to_copy = end_off - start_off;
2982 else
2983 valid = 0;
2984 }
2985 if (valid) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002986 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2987 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2988 continue;
2989 }
2990
2991 /* Copy data from adapter to driver buffers */
2992 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2993 bytes_to_copy);
2994
2995 ioa_dump->hdr.len += bytes_copied;
2996
2997 if (bytes_copied != bytes_to_copy) {
2998 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2999 break;
3000 }
3001 }
3002 }
3003 }
3004
3005 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3006
3007 /* Update dump_header */
3008 driver_dump->hdr.len += ioa_dump->hdr.len;
3009 wmb();
3010 ioa_cfg->sdt_state = DUMP_OBTAINED;
3011 LEAVE;
3012}
3013
3014#else
3015#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3016#endif
3017
3018/**
3019 * ipr_release_dump - Free adapter dump memory
3020 * @kref: kref struct
3021 *
3022 * Return value:
3023 * nothing
3024 **/
3025static void ipr_release_dump(struct kref *kref)
3026{
3027 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3028 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3029 unsigned long lock_flags = 0;
3030 int i;
3031
3032 ENTER;
3033 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3034 ioa_cfg->dump = NULL;
3035 ioa_cfg->sdt_state = INACTIVE;
3036 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3037
3038 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3039 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3040
3041 kfree(dump);
3042 LEAVE;
3043}
3044
3045/**
3046 * ipr_worker_thread - Worker thread
David Howellsc4028952006-11-22 14:57:56 +00003047 * @work: ioa config struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07003048 *
3049 * Called at task level from a work thread. This function takes care
3050 * of adding and removing device from the mid-layer as configuration
3051 * changes are detected by the adapter.
3052 *
3053 * Return value:
3054 * nothing
3055 **/
David Howellsc4028952006-11-22 14:57:56 +00003056static void ipr_worker_thread(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003057{
3058 unsigned long lock_flags;
3059 struct ipr_resource_entry *res;
3060 struct scsi_device *sdev;
3061 struct ipr_dump *dump;
David Howellsc4028952006-11-22 14:57:56 +00003062 struct ipr_ioa_cfg *ioa_cfg =
3063 container_of(work, struct ipr_ioa_cfg, work_q);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003064 u8 bus, target, lun;
3065 int did_work;
3066
3067 ENTER;
3068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3069
3070 if (ioa_cfg->sdt_state == GET_DUMP) {
3071 dump = ioa_cfg->dump;
3072 if (!dump) {
3073 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3074 return;
3075 }
3076 kref_get(&dump->kref);
3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3078 ipr_get_ioa_dump(ioa_cfg, dump);
3079 kref_put(&dump->kref, ipr_release_dump);
3080
3081 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3082 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3083 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3084 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3085 return;
3086 }
3087
3088restart:
3089 do {
3090 did_work = 0;
3091 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3093 return;
3094 }
3095
3096 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3097 if (res->del_from_ml && res->sdev) {
3098 did_work = 1;
3099 sdev = res->sdev;
3100 if (!scsi_device_get(sdev)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003101 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3102 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3103 scsi_remove_device(sdev);
3104 scsi_device_put(sdev);
3105 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3106 }
3107 break;
3108 }
3109 }
3110 } while(did_work);
3111
3112 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3113 if (res->add_to_ml) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08003114 bus = res->bus;
3115 target = res->target;
3116 lun = res->lun;
Brian King1121b792006-03-29 09:37:16 -06003117 res->add_to_ml = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3119 scsi_add_device(ioa_cfg->host, bus, target, lun);
3120 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3121 goto restart;
3122 }
3123 }
3124
3125 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
Tony Jonesee959b02008-02-22 00:13:36 +01003126 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003127 LEAVE;
3128}
3129
3130#ifdef CONFIG_SCSI_IPR_TRACE
3131/**
3132 * ipr_read_trace - Dump the adapter trace
Chris Wright2c3c8be2010-05-12 18:28:57 -07003133 * @filp: open sysfs file
Linus Torvalds1da177e2005-04-16 15:20:36 -07003134 * @kobj: kobject struct
Zhang Rui91a69022007-06-09 13:57:22 +08003135 * @bin_attr: bin_attribute struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07003136 * @buf: buffer
3137 * @off: offset
3138 * @count: buffer size
3139 *
3140 * Return value:
3141 * number of bytes printed to buffer
3142 **/
Chris Wright2c3c8be2010-05-12 18:28:57 -07003143static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
Zhang Rui91a69022007-06-09 13:57:22 +08003144 struct bin_attribute *bin_attr,
3145 char *buf, loff_t off, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003146{
Tony Jonesee959b02008-02-22 00:13:36 +01003147 struct device *dev = container_of(kobj, struct device, kobj);
3148 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003149 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3150 unsigned long lock_flags = 0;
Akinobu Mitad777aaf2008-09-22 14:56:47 -07003151 ssize_t ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003152
3153 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Akinobu Mitad777aaf2008-09-22 14:56:47 -07003154 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3155 IPR_TRACE_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003156 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
Akinobu Mitad777aaf2008-09-22 14:56:47 -07003157
3158 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003159}
3160
3161static struct bin_attribute ipr_trace_attr = {
3162 .attr = {
3163 .name = "trace",
3164 .mode = S_IRUGO,
3165 },
3166 .size = 0,
3167 .read = ipr_read_trace,
3168};
3169#endif
3170
3171/**
3172 * ipr_show_fw_version - Show the firmware version
Tony Jonesee959b02008-02-22 00:13:36 +01003173 * @dev: class device struct
3174 * @buf: buffer
Linus Torvalds1da177e2005-04-16 15:20:36 -07003175 *
3176 * Return value:
3177 * number of bytes printed to buffer
3178 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003179static ssize_t ipr_show_fw_version(struct device *dev,
3180 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003181{
Tony Jonesee959b02008-02-22 00:13:36 +01003182 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003183 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3184 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3185 unsigned long lock_flags = 0;
3186 int len;
3187
3188 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3189 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3190 ucode_vpd->major_release, ucode_vpd->card_type,
3191 ucode_vpd->minor_release[0],
3192 ucode_vpd->minor_release[1]);
3193 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3194 return len;
3195}
3196
Tony Jonesee959b02008-02-22 00:13:36 +01003197static struct device_attribute ipr_fw_version_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003198 .attr = {
3199 .name = "fw_version",
3200 .mode = S_IRUGO,
3201 },
3202 .show = ipr_show_fw_version,
3203};
3204
3205/**
3206 * ipr_show_log_level - Show the adapter's error logging level
Tony Jonesee959b02008-02-22 00:13:36 +01003207 * @dev: class device struct
3208 * @buf: buffer
Linus Torvalds1da177e2005-04-16 15:20:36 -07003209 *
3210 * Return value:
3211 * number of bytes printed to buffer
3212 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003213static ssize_t ipr_show_log_level(struct device *dev,
3214 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003215{
Tony Jonesee959b02008-02-22 00:13:36 +01003216 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003217 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3218 unsigned long lock_flags = 0;
3219 int len;
3220
3221 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3222 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3223 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3224 return len;
3225}
3226
3227/**
3228 * ipr_store_log_level - Change the adapter's error logging level
Tony Jonesee959b02008-02-22 00:13:36 +01003229 * @dev: class device struct
3230 * @buf: buffer
Linus Torvalds1da177e2005-04-16 15:20:36 -07003231 *
3232 * Return value:
3233 * number of bytes printed to buffer
3234 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003235static ssize_t ipr_store_log_level(struct device *dev,
3236 struct device_attribute *attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003237 const char *buf, size_t count)
3238{
Tony Jonesee959b02008-02-22 00:13:36 +01003239 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003240 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3241 unsigned long lock_flags = 0;
3242
3243 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3244 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3245 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3246 return strlen(buf);
3247}
3248
Tony Jonesee959b02008-02-22 00:13:36 +01003249static struct device_attribute ipr_log_level_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003250 .attr = {
3251 .name = "log_level",
3252 .mode = S_IRUGO | S_IWUSR,
3253 },
3254 .show = ipr_show_log_level,
3255 .store = ipr_store_log_level
3256};
3257
3258/**
3259 * ipr_store_diagnostics - IOA Diagnostics interface
Tony Jonesee959b02008-02-22 00:13:36 +01003260 * @dev: device struct
3261 * @buf: buffer
3262 * @count: buffer size
Linus Torvalds1da177e2005-04-16 15:20:36 -07003263 *
3264 * This function will reset the adapter and wait a reasonable
3265 * amount of time for any errors that the adapter might log.
3266 *
3267 * Return value:
3268 * count on success / other on failure
3269 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003270static ssize_t ipr_store_diagnostics(struct device *dev,
3271 struct device_attribute *attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003272 const char *buf, size_t count)
3273{
Tony Jonesee959b02008-02-22 00:13:36 +01003274 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003275 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3276 unsigned long lock_flags = 0;
3277 int rc = count;
3278
3279 if (!capable(CAP_SYS_ADMIN))
3280 return -EACCES;
3281
Linus Torvalds1da177e2005-04-16 15:20:36 -07003282 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King970ea292007-04-26 16:00:06 -05003283 while(ioa_cfg->in_reset_reload) {
3284 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3285 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3286 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3287 }
3288
Linus Torvalds1da177e2005-04-16 15:20:36 -07003289 ioa_cfg->errors_logged = 0;
3290 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3291
3292 if (ioa_cfg->in_reset_reload) {
3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3294 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3295
3296 /* Wait for a second for any errors to be logged */
3297 msleep(1000);
3298 } else {
3299 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3300 return -EIO;
3301 }
3302
3303 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3304 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3305 rc = -EIO;
3306 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3307
3308 return rc;
3309}
3310
Tony Jonesee959b02008-02-22 00:13:36 +01003311static struct device_attribute ipr_diagnostics_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003312 .attr = {
3313 .name = "run_diagnostics",
3314 .mode = S_IWUSR,
3315 },
3316 .store = ipr_store_diagnostics
3317};
3318
3319/**
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003320 * ipr_show_adapter_state - Show the adapter's state
Tony Jonesee959b02008-02-22 00:13:36 +01003321 * @class_dev: device struct
3322 * @buf: buffer
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003323 *
3324 * Return value:
3325 * number of bytes printed to buffer
3326 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003327static ssize_t ipr_show_adapter_state(struct device *dev,
3328 struct device_attribute *attr, char *buf)
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003329{
Tony Jonesee959b02008-02-22 00:13:36 +01003330 struct Scsi_Host *shost = class_to_shost(dev);
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003331 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3332 unsigned long lock_flags = 0;
3333 int len;
3334
3335 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3336 if (ioa_cfg->ioa_is_dead)
3337 len = snprintf(buf, PAGE_SIZE, "offline\n");
3338 else
3339 len = snprintf(buf, PAGE_SIZE, "online\n");
3340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3341 return len;
3342}
3343
3344/**
3345 * ipr_store_adapter_state - Change adapter state
Tony Jonesee959b02008-02-22 00:13:36 +01003346 * @dev: device struct
3347 * @buf: buffer
3348 * @count: buffer size
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003349 *
3350 * This function will change the adapter's state.
3351 *
3352 * Return value:
3353 * count on success / other on failure
3354 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003355static ssize_t ipr_store_adapter_state(struct device *dev,
3356 struct device_attribute *attr,
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003357 const char *buf, size_t count)
3358{
Tony Jonesee959b02008-02-22 00:13:36 +01003359 struct Scsi_Host *shost = class_to_shost(dev);
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003360 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3361 unsigned long lock_flags;
3362 int result = count;
3363
3364 if (!capable(CAP_SYS_ADMIN))
3365 return -EACCES;
3366
3367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3368 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3369 ioa_cfg->ioa_is_dead = 0;
3370 ioa_cfg->reset_retries = 0;
3371 ioa_cfg->in_ioa_bringdown = 0;
3372 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3373 }
3374 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3375 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3376
3377 return result;
3378}
3379
Tony Jonesee959b02008-02-22 00:13:36 +01003380static struct device_attribute ipr_ioa_state_attr = {
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003381 .attr = {
Brian King49dd0962008-04-28 17:36:20 -05003382 .name = "online_state",
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003383 .mode = S_IRUGO | S_IWUSR,
3384 },
3385 .show = ipr_show_adapter_state,
3386 .store = ipr_store_adapter_state
3387};
3388
3389/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003390 * ipr_store_reset_adapter - Reset the adapter
Tony Jonesee959b02008-02-22 00:13:36 +01003391 * @dev: device struct
3392 * @buf: buffer
3393 * @count: buffer size
Linus Torvalds1da177e2005-04-16 15:20:36 -07003394 *
3395 * This function will reset the adapter.
3396 *
3397 * Return value:
3398 * count on success / other on failure
3399 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003400static ssize_t ipr_store_reset_adapter(struct device *dev,
3401 struct device_attribute *attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003402 const char *buf, size_t count)
3403{
Tony Jonesee959b02008-02-22 00:13:36 +01003404 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003405 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3406 unsigned long lock_flags;
3407 int result = count;
3408
3409 if (!capable(CAP_SYS_ADMIN))
3410 return -EACCES;
3411
3412 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3413 if (!ioa_cfg->in_reset_reload)
3414 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3415 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3416 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3417
3418 return result;
3419}
3420
Tony Jonesee959b02008-02-22 00:13:36 +01003421static struct device_attribute ipr_ioa_reset_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003422 .attr = {
3423 .name = "reset_host",
3424 .mode = S_IWUSR,
3425 },
3426 .store = ipr_store_reset_adapter
3427};
3428
3429/**
3430 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3431 * @buf_len: buffer length
3432 *
3433 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3434 * list to use for microcode download
3435 *
3436 * Return value:
3437 * pointer to sglist / NULL on failure
3438 **/
3439static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3440{
3441 int sg_size, order, bsize_elem, num_elem, i, j;
3442 struct ipr_sglist *sglist;
3443 struct scatterlist *scatterlist;
3444 struct page *page;
3445
3446 /* Get the minimum size per scatter/gather element */
3447 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3448
3449 /* Get the actual size per element */
3450 order = get_order(sg_size);
3451
3452 /* Determine the actual number of bytes per element */
3453 bsize_elem = PAGE_SIZE * (1 << order);
3454
3455 /* Determine the actual number of sg entries needed */
3456 if (buf_len % bsize_elem)
3457 num_elem = (buf_len / bsize_elem) + 1;
3458 else
3459 num_elem = buf_len / bsize_elem;
3460
3461 /* Allocate a scatter/gather list for the DMA */
brking@us.ibm.com0bc42e32005-11-01 17:01:20 -06003462 sglist = kzalloc(sizeof(struct ipr_sglist) +
Linus Torvalds1da177e2005-04-16 15:20:36 -07003463 (sizeof(struct scatterlist) * (num_elem - 1)),
3464 GFP_KERNEL);
3465
3466 if (sglist == NULL) {
3467 ipr_trace;
3468 return NULL;
3469 }
3470
Linus Torvalds1da177e2005-04-16 15:20:36 -07003471 scatterlist = sglist->scatterlist;
Jens Axboe45711f12007-10-22 21:19:53 +02003472 sg_init_table(scatterlist, num_elem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003473
3474 sglist->order = order;
3475 sglist->num_sg = num_elem;
3476
3477 /* Allocate a bunch of sg elements */
3478 for (i = 0; i < num_elem; i++) {
3479 page = alloc_pages(GFP_KERNEL, order);
3480 if (!page) {
3481 ipr_trace;
3482
3483 /* Free up what we already allocated */
3484 for (j = i - 1; j >= 0; j--)
Jens Axboe45711f12007-10-22 21:19:53 +02003485 __free_pages(sg_page(&scatterlist[j]), order);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003486 kfree(sglist);
3487 return NULL;
3488 }
3489
Jens Axboe642f1492007-10-24 11:20:47 +02003490 sg_set_page(&scatterlist[i], page, 0, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003491 }
3492
3493 return sglist;
3494}
3495
3496/**
3497 * ipr_free_ucode_buffer - Frees a microcode download buffer
3498 * @p_dnld: scatter/gather list pointer
3499 *
3500 * Free a DMA'able ucode download buffer previously allocated with
3501 * ipr_alloc_ucode_buffer
3502 *
3503 * Return value:
3504 * nothing
3505 **/
3506static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3507{
3508 int i;
3509
3510 for (i = 0; i < sglist->num_sg; i++)
Jens Axboe45711f12007-10-22 21:19:53 +02003511 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003512
3513 kfree(sglist);
3514}
3515
3516/**
3517 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3518 * @sglist: scatter/gather list pointer
3519 * @buffer: buffer pointer
3520 * @len: buffer length
3521 *
3522 * Copy a microcode image from a user buffer into a buffer allocated by
3523 * ipr_alloc_ucode_buffer
3524 *
3525 * Return value:
3526 * 0 on success / other on failure
3527 **/
3528static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3529 u8 *buffer, u32 len)
3530{
3531 int bsize_elem, i, result = 0;
3532 struct scatterlist *scatterlist;
3533 void *kaddr;
3534
3535 /* Determine the actual number of bytes per element */
3536 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3537
3538 scatterlist = sglist->scatterlist;
3539
3540 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
Jens Axboe45711f12007-10-22 21:19:53 +02003541 struct page *page = sg_page(&scatterlist[i]);
3542
3543 kaddr = kmap(page);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003544 memcpy(kaddr, buffer, bsize_elem);
Jens Axboe45711f12007-10-22 21:19:53 +02003545 kunmap(page);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003546
3547 scatterlist[i].length = bsize_elem;
3548
3549 if (result != 0) {
3550 ipr_trace;
3551 return result;
3552 }
3553 }
3554
3555 if (len % bsize_elem) {
Jens Axboe45711f12007-10-22 21:19:53 +02003556 struct page *page = sg_page(&scatterlist[i]);
3557
3558 kaddr = kmap(page);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003559 memcpy(kaddr, buffer, len % bsize_elem);
Jens Axboe45711f12007-10-22 21:19:53 +02003560 kunmap(page);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003561
3562 scatterlist[i].length = len % bsize_elem;
3563 }
3564
3565 sglist->buffer_len = len;
3566 return result;
3567}
3568
3569/**
Wayne Boyera32c0552010-02-19 13:23:36 -08003570 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3571 * @ipr_cmd: ipr command struct
3572 * @sglist: scatter/gather list
3573 *
3574 * Builds a microcode download IOA data list (IOADL).
3575 *
3576 **/
3577static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3578 struct ipr_sglist *sglist)
3579{
3580 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3581 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3582 struct scatterlist *scatterlist = sglist->scatterlist;
3583 int i;
3584
3585 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3586 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3587 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3588
3589 ioarcb->ioadl_len =
3590 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3591 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3592 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3593 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3594 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3595 }
3596
3597 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3598}
3599
3600/**
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003601 * ipr_build_ucode_ioadl - Build a microcode download IOADL
Linus Torvalds1da177e2005-04-16 15:20:36 -07003602 * @ipr_cmd: ipr command struct
3603 * @sglist: scatter/gather list
Linus Torvalds1da177e2005-04-16 15:20:36 -07003604 *
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003605 * Builds a microcode download IOA data list (IOADL).
Linus Torvalds1da177e2005-04-16 15:20:36 -07003606 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07003607 **/
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003608static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3609 struct ipr_sglist *sglist)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003610{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003611 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyera32c0552010-02-19 13:23:36 -08003612 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003613 struct scatterlist *scatterlist = sglist->scatterlist;
3614 int i;
3615
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003616 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003617 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
Wayne Boyera32c0552010-02-19 13:23:36 -08003618 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3619
3620 ioarcb->ioadl_len =
Linus Torvalds1da177e2005-04-16 15:20:36 -07003621 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3622
3623 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3624 ioadl[i].flags_and_data_len =
3625 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3626 ioadl[i].address =
3627 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3628 }
3629
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003630 ioadl[i-1].flags_and_data_len |=
3631 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3632}
3633
3634/**
3635 * ipr_update_ioa_ucode - Update IOA's microcode
3636 * @ioa_cfg: ioa config struct
3637 * @sglist: scatter/gather list
3638 *
3639 * Initiate an adapter reset to update the IOA's microcode
3640 *
3641 * Return value:
3642 * 0 on success / -EIO on failure
3643 **/
3644static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3645 struct ipr_sglist *sglist)
3646{
3647 unsigned long lock_flags;
3648
3649 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King970ea292007-04-26 16:00:06 -05003650 while(ioa_cfg->in_reset_reload) {
3651 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3652 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3654 }
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003655
3656 if (ioa_cfg->ucode_sglist) {
3657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3658 dev_err(&ioa_cfg->pdev->dev,
3659 "Microcode download already in progress\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003660 return -EIO;
3661 }
3662
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003663 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3664 sglist->num_sg, DMA_TO_DEVICE);
3665
3666 if (!sglist->num_dma_sg) {
3667 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3668 dev_err(&ioa_cfg->pdev->dev,
3669 "Failed to map microcode download buffer!\n");
3670 return -EIO;
3671 }
3672
3673 ioa_cfg->ucode_sglist = sglist;
3674 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3675 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3676 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3677
3678 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3679 ioa_cfg->ucode_sglist = NULL;
3680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003681 return 0;
3682}
3683
3684/**
3685 * ipr_store_update_fw - Update the firmware on the adapter
Tony Jonesee959b02008-02-22 00:13:36 +01003686 * @class_dev: device struct
3687 * @buf: buffer
3688 * @count: buffer size
Linus Torvalds1da177e2005-04-16 15:20:36 -07003689 *
3690 * This function will update the firmware on the adapter.
3691 *
3692 * Return value:
3693 * count on success / other on failure
3694 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003695static ssize_t ipr_store_update_fw(struct device *dev,
3696 struct device_attribute *attr,
3697 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003698{
Tony Jonesee959b02008-02-22 00:13:36 +01003699 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003700 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3701 struct ipr_ucode_image_header *image_hdr;
3702 const struct firmware *fw_entry;
3703 struct ipr_sglist *sglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003704 char fname[100];
3705 char *src;
3706 int len, result, dnld_size;
3707
3708 if (!capable(CAP_SYS_ADMIN))
3709 return -EACCES;
3710
3711 len = snprintf(fname, 99, "%s", buf);
3712 fname[len-1] = '\0';
3713
3714 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3715 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3716 return -EIO;
3717 }
3718
3719 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3720
3721 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3722 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3723 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3724 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3725 release_firmware(fw_entry);
3726 return -EINVAL;
3727 }
3728
3729 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3730 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3731 sglist = ipr_alloc_ucode_buffer(dnld_size);
3732
3733 if (!sglist) {
3734 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3735 release_firmware(fw_entry);
3736 return -ENOMEM;
3737 }
3738
3739 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3740
3741 if (result) {
3742 dev_err(&ioa_cfg->pdev->dev,
3743 "Microcode buffer copy to DMA buffer failed\n");
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003744 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003745 }
3746
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003747 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003748
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003749 if (!result)
3750 result = count;
3751out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07003752 ipr_free_ucode_buffer(sglist);
3753 release_firmware(fw_entry);
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003754 return result;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003755}
3756
Tony Jonesee959b02008-02-22 00:13:36 +01003757static struct device_attribute ipr_update_fw_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003758 .attr = {
3759 .name = "update_fw",
3760 .mode = S_IWUSR,
3761 },
3762 .store = ipr_store_update_fw
3763};
3764
Tony Jonesee959b02008-02-22 00:13:36 +01003765static struct device_attribute *ipr_ioa_attrs[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003766 &ipr_fw_version_attr,
3767 &ipr_log_level_attr,
3768 &ipr_diagnostics_attr,
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003769 &ipr_ioa_state_attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003770 &ipr_ioa_reset_attr,
3771 &ipr_update_fw_attr,
3772 NULL,
3773};
3774
3775#ifdef CONFIG_SCSI_IPR_DUMP
3776/**
3777 * ipr_read_dump - Dump the adapter
Chris Wright2c3c8be2010-05-12 18:28:57 -07003778 * @filp: open sysfs file
Linus Torvalds1da177e2005-04-16 15:20:36 -07003779 * @kobj: kobject struct
Zhang Rui91a69022007-06-09 13:57:22 +08003780 * @bin_attr: bin_attribute struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07003781 * @buf: buffer
3782 * @off: offset
3783 * @count: buffer size
3784 *
3785 * Return value:
3786 * number of bytes printed to buffer
3787 **/
Chris Wright2c3c8be2010-05-12 18:28:57 -07003788static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
Zhang Rui91a69022007-06-09 13:57:22 +08003789 struct bin_attribute *bin_attr,
3790 char *buf, loff_t off, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003791{
Tony Jonesee959b02008-02-22 00:13:36 +01003792 struct device *cdev = container_of(kobj, struct device, kobj);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003793 struct Scsi_Host *shost = class_to_shost(cdev);
3794 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3795 struct ipr_dump *dump;
3796 unsigned long lock_flags = 0;
3797 char *src;
3798 int len;
3799 size_t rc = count;
3800
3801 if (!capable(CAP_SYS_ADMIN))
3802 return -EACCES;
3803
3804 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3805 dump = ioa_cfg->dump;
3806
3807 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3808 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3809 return 0;
3810 }
3811 kref_get(&dump->kref);
3812 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3813
3814 if (off > dump->driver_dump.hdr.len) {
3815 kref_put(&dump->kref, ipr_release_dump);
3816 return 0;
3817 }
3818
3819 if (off + count > dump->driver_dump.hdr.len) {
3820 count = dump->driver_dump.hdr.len - off;
3821 rc = count;
3822 }
3823
3824 if (count && off < sizeof(dump->driver_dump)) {
3825 if (off + count > sizeof(dump->driver_dump))
3826 len = sizeof(dump->driver_dump) - off;
3827 else
3828 len = count;
3829 src = (u8 *)&dump->driver_dump + off;
3830 memcpy(buf, src, len);
3831 buf += len;
3832 off += len;
3833 count -= len;
3834 }
3835
3836 off -= sizeof(dump->driver_dump);
3837
3838 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3839 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3840 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3841 else
3842 len = count;
3843 src = (u8 *)&dump->ioa_dump + off;
3844 memcpy(buf, src, len);
3845 buf += len;
3846 off += len;
3847 count -= len;
3848 }
3849
3850 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3851
3852 while (count) {
3853 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3854 len = PAGE_ALIGN(off) - off;
3855 else
3856 len = count;
3857 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3858 src += off & ~PAGE_MASK;
3859 memcpy(buf, src, len);
3860 buf += len;
3861 off += len;
3862 count -= len;
3863 }
3864
3865 kref_put(&dump->kref, ipr_release_dump);
3866 return rc;
3867}
3868
3869/**
3870 * ipr_alloc_dump - Prepare for adapter dump
3871 * @ioa_cfg: ioa config struct
3872 *
3873 * Return value:
3874 * 0 on success / other on failure
3875 **/
3876static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3877{
3878 struct ipr_dump *dump;
3879 unsigned long lock_flags = 0;
3880
brking@us.ibm.com0bc42e32005-11-01 17:01:20 -06003881 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003882
3883 if (!dump) {
3884 ipr_err("Dump memory allocation failed\n");
3885 return -ENOMEM;
3886 }
3887
Linus Torvalds1da177e2005-04-16 15:20:36 -07003888 kref_init(&dump->kref);
3889 dump->ioa_cfg = ioa_cfg;
3890
3891 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3892
3893 if (INACTIVE != ioa_cfg->sdt_state) {
3894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3895 kfree(dump);
3896 return 0;
3897 }
3898
3899 ioa_cfg->dump = dump;
3900 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3901 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3902 ioa_cfg->dump_taken = 1;
3903 schedule_work(&ioa_cfg->work_q);
3904 }
3905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3906
Linus Torvalds1da177e2005-04-16 15:20:36 -07003907 return 0;
3908}
3909
3910/**
3911 * ipr_free_dump - Free adapter dump memory
3912 * @ioa_cfg: ioa config struct
3913 *
3914 * Return value:
3915 * 0 on success / other on failure
3916 **/
3917static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3918{
3919 struct ipr_dump *dump;
3920 unsigned long lock_flags = 0;
3921
3922 ENTER;
3923
3924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3925 dump = ioa_cfg->dump;
3926 if (!dump) {
3927 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3928 return 0;
3929 }
3930
3931 ioa_cfg->dump = NULL;
3932 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3933
3934 kref_put(&dump->kref, ipr_release_dump);
3935
3936 LEAVE;
3937 return 0;
3938}
3939
3940/**
3941 * ipr_write_dump - Setup dump state of adapter
Chris Wright2c3c8be2010-05-12 18:28:57 -07003942 * @filp: open sysfs file
Linus Torvalds1da177e2005-04-16 15:20:36 -07003943 * @kobj: kobject struct
Zhang Rui91a69022007-06-09 13:57:22 +08003944 * @bin_attr: bin_attribute struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07003945 * @buf: buffer
3946 * @off: offset
3947 * @count: buffer size
3948 *
3949 * Return value:
3950 * number of bytes printed to buffer
3951 **/
Chris Wright2c3c8be2010-05-12 18:28:57 -07003952static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
Zhang Rui91a69022007-06-09 13:57:22 +08003953 struct bin_attribute *bin_attr,
3954 char *buf, loff_t off, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003955{
Tony Jonesee959b02008-02-22 00:13:36 +01003956 struct device *cdev = container_of(kobj, struct device, kobj);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003957 struct Scsi_Host *shost = class_to_shost(cdev);
3958 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3959 int rc;
3960
3961 if (!capable(CAP_SYS_ADMIN))
3962 return -EACCES;
3963
3964 if (buf[0] == '1')
3965 rc = ipr_alloc_dump(ioa_cfg);
3966 else if (buf[0] == '0')
3967 rc = ipr_free_dump(ioa_cfg);
3968 else
3969 return -EINVAL;
3970
3971 if (rc)
3972 return rc;
3973 else
3974 return count;
3975}
3976
3977static struct bin_attribute ipr_dump_attr = {
3978 .attr = {
3979 .name = "dump",
3980 .mode = S_IRUSR | S_IWUSR,
3981 },
3982 .size = 0,
3983 .read = ipr_read_dump,
3984 .write = ipr_write_dump
3985};
3986#else
3987static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3988#endif
3989
3990/**
3991 * ipr_change_queue_depth - Change the device's queue depth
3992 * @sdev: scsi device struct
3993 * @qdepth: depth to set
Mike Christiee881a172009-10-15 17:46:39 -07003994 * @reason: calling context
Linus Torvalds1da177e2005-04-16 15:20:36 -07003995 *
3996 * Return value:
3997 * actual depth set
3998 **/
Mike Christiee881a172009-10-15 17:46:39 -07003999static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4000 int reason)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004001{
Brian King35a39692006-09-25 12:39:20 -05004002 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4003 struct ipr_resource_entry *res;
4004 unsigned long lock_flags = 0;
4005
Mike Christiee881a172009-10-15 17:46:39 -07004006 if (reason != SCSI_QDEPTH_DEFAULT)
4007 return -EOPNOTSUPP;
4008
Brian King35a39692006-09-25 12:39:20 -05004009 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4010 res = (struct ipr_resource_entry *)sdev->hostdata;
4011
4012 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4013 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4014 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4015
Linus Torvalds1da177e2005-04-16 15:20:36 -07004016 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4017 return sdev->queue_depth;
4018}
4019
4020/**
4021 * ipr_change_queue_type - Change the device's queue type
4022 * @dsev: scsi device struct
4023 * @tag_type: type of tags to use
4024 *
4025 * Return value:
4026 * actual queue type set
4027 **/
4028static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4029{
4030 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4031 struct ipr_resource_entry *res;
4032 unsigned long lock_flags = 0;
4033
4034 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4035 res = (struct ipr_resource_entry *)sdev->hostdata;
4036
4037 if (res) {
4038 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4039 /*
4040 * We don't bother quiescing the device here since the
4041 * adapter firmware does it for us.
4042 */
4043 scsi_set_tag_type(sdev, tag_type);
4044
4045 if (tag_type)
4046 scsi_activate_tcq(sdev, sdev->queue_depth);
4047 else
4048 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4049 } else
4050 tag_type = 0;
4051 } else
4052 tag_type = 0;
4053
4054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4055 return tag_type;
4056}
4057
4058/**
4059 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4060 * @dev: device struct
4061 * @buf: buffer
4062 *
4063 * Return value:
4064 * number of bytes printed to buffer
4065 **/
Yani Ioannou10523b32005-05-17 06:43:37 -04004066static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004067{
4068 struct scsi_device *sdev = to_scsi_device(dev);
4069 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4070 struct ipr_resource_entry *res;
4071 unsigned long lock_flags = 0;
4072 ssize_t len = -ENXIO;
4073
4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4075 res = (struct ipr_resource_entry *)sdev->hostdata;
4076 if (res)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004077 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004078 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4079 return len;
4080}
4081
4082static struct device_attribute ipr_adapter_handle_attr = {
4083 .attr = {
4084 .name = "adapter_handle",
4085 .mode = S_IRUSR,
4086 },
4087 .show = ipr_show_adapter_handle
4088};
4089
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004090/**
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07004091 * ipr_show_resource_path - Show the resource path or the resource address for
4092 * this device.
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004093 * @dev: device struct
4094 * @buf: buffer
4095 *
4096 * Return value:
4097 * number of bytes printed to buffer
4098 **/
4099static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4100{
4101 struct scsi_device *sdev = to_scsi_device(dev);
4102 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4103 struct ipr_resource_entry *res;
4104 unsigned long lock_flags = 0;
4105 ssize_t len = -ENXIO;
4106 char buffer[IPR_MAX_RES_PATH_LENGTH];
4107
4108 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4109 res = (struct ipr_resource_entry *)sdev->hostdata;
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07004110 if (res && ioa_cfg->sis64)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004111 len = snprintf(buf, PAGE_SIZE, "%s\n",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07004112 ipr_format_res_path(res->res_path, buffer,
4113 sizeof(buffer)));
4114 else if (res)
4115 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4116 res->bus, res->target, res->lun);
4117
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4119 return len;
4120}
4121
4122static struct device_attribute ipr_resource_path_attr = {
4123 .attr = {
4124 .name = "resource_path",
4125 .mode = S_IRUSR,
4126 },
4127 .show = ipr_show_resource_path
4128};
4129
Linus Torvalds1da177e2005-04-16 15:20:36 -07004130static struct device_attribute *ipr_dev_attrs[] = {
4131 &ipr_adapter_handle_attr,
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004132 &ipr_resource_path_attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004133 NULL,
4134};
4135
4136/**
4137 * ipr_biosparam - Return the HSC mapping
4138 * @sdev: scsi device struct
4139 * @block_device: block device pointer
4140 * @capacity: capacity of the device
4141 * @parm: Array containing returned HSC values.
4142 *
4143 * This function generates the HSC parms that fdisk uses.
4144 * We want to make sure we return something that places partitions
4145 * on 4k boundaries for best performance with the IOA.
4146 *
4147 * Return value:
4148 * 0 on success
4149 **/
4150static int ipr_biosparam(struct scsi_device *sdev,
4151 struct block_device *block_device,
4152 sector_t capacity, int *parm)
4153{
4154 int heads, sectors;
4155 sector_t cylinders;
4156
4157 heads = 128;
4158 sectors = 32;
4159
4160 cylinders = capacity;
4161 sector_div(cylinders, (128 * 32));
4162
4163 /* return result */
4164 parm[0] = heads;
4165 parm[1] = sectors;
4166 parm[2] = cylinders;
4167
4168 return 0;
4169}
4170
4171/**
Brian King35a39692006-09-25 12:39:20 -05004172 * ipr_find_starget - Find target based on bus/target.
4173 * @starget: scsi target struct
4174 *
4175 * Return value:
4176 * resource entry pointer if found / NULL if not found
4177 **/
4178static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4179{
4180 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4181 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4182 struct ipr_resource_entry *res;
4183
4184 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004185 if ((res->bus == starget->channel) &&
4186 (res->target == starget->id) &&
4187 (res->lun == 0)) {
Brian King35a39692006-09-25 12:39:20 -05004188 return res;
4189 }
4190 }
4191
4192 return NULL;
4193}
4194
4195static struct ata_port_info sata_port_info;
4196
4197/**
4198 * ipr_target_alloc - Prepare for commands to a SCSI target
4199 * @starget: scsi target struct
4200 *
4201 * If the device is a SATA device, this function allocates an
4202 * ATA port with libata, else it does nothing.
4203 *
4204 * Return value:
4205 * 0 on success / non-0 on failure
4206 **/
4207static int ipr_target_alloc(struct scsi_target *starget)
4208{
4209 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4210 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4211 struct ipr_sata_port *sata_port;
4212 struct ata_port *ap;
4213 struct ipr_resource_entry *res;
4214 unsigned long lock_flags;
4215
4216 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4217 res = ipr_find_starget(starget);
4218 starget->hostdata = NULL;
4219
4220 if (res && ipr_is_gata(res)) {
4221 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4222 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4223 if (!sata_port)
4224 return -ENOMEM;
4225
4226 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4227 if (ap) {
4228 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4229 sata_port->ioa_cfg = ioa_cfg;
4230 sata_port->ap = ap;
4231 sata_port->res = res;
4232
4233 res->sata_port = sata_port;
4234 ap->private_data = sata_port;
4235 starget->hostdata = sata_port;
4236 } else {
4237 kfree(sata_port);
4238 return -ENOMEM;
4239 }
4240 }
4241 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4242
4243 return 0;
4244}
4245
4246/**
4247 * ipr_target_destroy - Destroy a SCSI target
4248 * @starget: scsi target struct
4249 *
4250 * If the device was a SATA device, this function frees the libata
4251 * ATA port, else it does nothing.
4252 *
4253 **/
4254static void ipr_target_destroy(struct scsi_target *starget)
4255{
4256 struct ipr_sata_port *sata_port = starget->hostdata;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004257 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4258 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4259
4260 if (ioa_cfg->sis64) {
4261 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4262 clear_bit(starget->id, ioa_cfg->array_ids);
4263 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4264 clear_bit(starget->id, ioa_cfg->vset_ids);
4265 else if (starget->channel == 0)
4266 clear_bit(starget->id, ioa_cfg->target_ids);
4267 }
Brian King35a39692006-09-25 12:39:20 -05004268
4269 if (sata_port) {
4270 starget->hostdata = NULL;
4271 ata_sas_port_destroy(sata_port->ap);
4272 kfree(sata_port);
4273 }
4274}
4275
4276/**
4277 * ipr_find_sdev - Find device based on bus/target/lun.
4278 * @sdev: scsi device struct
4279 *
4280 * Return value:
4281 * resource entry pointer if found / NULL if not found
4282 **/
4283static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4284{
4285 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4286 struct ipr_resource_entry *res;
4287
4288 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004289 if ((res->bus == sdev->channel) &&
4290 (res->target == sdev->id) &&
4291 (res->lun == sdev->lun))
Brian King35a39692006-09-25 12:39:20 -05004292 return res;
4293 }
4294
4295 return NULL;
4296}
4297
4298/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004299 * ipr_slave_destroy - Unconfigure a SCSI device
4300 * @sdev: scsi device struct
4301 *
4302 * Return value:
4303 * nothing
4304 **/
4305static void ipr_slave_destroy(struct scsi_device *sdev)
4306{
4307 struct ipr_resource_entry *res;
4308 struct ipr_ioa_cfg *ioa_cfg;
4309 unsigned long lock_flags = 0;
4310
4311 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4312
4313 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4314 res = (struct ipr_resource_entry *) sdev->hostdata;
4315 if (res) {
Brian King35a39692006-09-25 12:39:20 -05004316 if (res->sata_port)
Tejun Heo3e4ec342010-05-10 21:41:30 +02004317 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004318 sdev->hostdata = NULL;
4319 res->sdev = NULL;
Brian King35a39692006-09-25 12:39:20 -05004320 res->sata_port = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004321 }
4322 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4323}
4324
4325/**
4326 * ipr_slave_configure - Configure a SCSI device
4327 * @sdev: scsi device struct
4328 *
4329 * This function configures the specified scsi device.
4330 *
4331 * Return value:
4332 * 0 on success
4333 **/
4334static int ipr_slave_configure(struct scsi_device *sdev)
4335{
4336 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4337 struct ipr_resource_entry *res;
Brian Kingdd406ef2009-04-22 08:58:02 -05004338 struct ata_port *ap = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004339 unsigned long lock_flags = 0;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004340 char buffer[IPR_MAX_RES_PATH_LENGTH];
Linus Torvalds1da177e2005-04-16 15:20:36 -07004341
4342 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4343 res = sdev->hostdata;
4344 if (res) {
4345 if (ipr_is_af_dasd_device(res))
4346 sdev->type = TYPE_RAID;
brking@us.ibm.com0726ce22005-11-01 17:01:01 -06004347 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004348 sdev->scsi_level = 4;
brking@us.ibm.com0726ce22005-11-01 17:01:01 -06004349 sdev->no_uld_attach = 1;
4350 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004351 if (ipr_is_vset_device(res)) {
Jens Axboe242f9dc2008-09-14 05:55:09 -07004352 blk_queue_rq_timeout(sdev->request_queue,
4353 IPR_VSET_RW_TIMEOUT);
Martin K. Petersen086fa5f2010-02-26 00:20:38 -05004354 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004355 }
Brian Kingdd406ef2009-04-22 08:58:02 -05004356 if (ipr_is_gata(res) && res->sata_port)
4357 ap = res->sata_port->ap;
4358 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4359
4360 if (ap) {
Brian King35a39692006-09-25 12:39:20 -05004361 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
Brian Kingdd406ef2009-04-22 08:58:02 -05004362 ata_sas_slave_configure(sdev, ap);
4363 } else
Brian King35a39692006-09-25 12:39:20 -05004364 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004365 if (ioa_cfg->sis64)
4366 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07004367 ipr_format_res_path(res->res_path, buffer,
4368 sizeof(buffer)));
Brian Kingdd406ef2009-04-22 08:58:02 -05004369 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004370 }
4371 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4372 return 0;
4373}
4374
4375/**
Brian King35a39692006-09-25 12:39:20 -05004376 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4377 * @sdev: scsi device struct
4378 *
4379 * This function initializes an ATA port so that future commands
4380 * sent through queuecommand will work.
4381 *
4382 * Return value:
4383 * 0 on success
4384 **/
4385static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4386{
4387 struct ipr_sata_port *sata_port = NULL;
4388 int rc = -ENXIO;
4389
4390 ENTER;
4391 if (sdev->sdev_target)
4392 sata_port = sdev->sdev_target->hostdata;
4393 if (sata_port)
4394 rc = ata_sas_port_init(sata_port->ap);
4395 if (rc)
4396 ipr_slave_destroy(sdev);
4397
4398 LEAVE;
4399 return rc;
4400}
4401
4402/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004403 * ipr_slave_alloc - Prepare for commands to a device.
4404 * @sdev: scsi device struct
4405 *
4406 * This function saves a pointer to the resource entry
4407 * in the scsi device struct if the device exists. We
4408 * can then use this pointer in ipr_queuecommand when
4409 * handling new commands.
4410 *
4411 * Return value:
brking@us.ibm.com692aebf2005-11-01 17:01:07 -06004412 * 0 on success / -ENXIO if device does not exist
Linus Torvalds1da177e2005-04-16 15:20:36 -07004413 **/
4414static int ipr_slave_alloc(struct scsi_device *sdev)
4415{
4416 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4417 struct ipr_resource_entry *res;
4418 unsigned long lock_flags;
brking@us.ibm.com692aebf2005-11-01 17:01:07 -06004419 int rc = -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004420
4421 sdev->hostdata = NULL;
4422
4423 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4424
Brian King35a39692006-09-25 12:39:20 -05004425 res = ipr_find_sdev(sdev);
4426 if (res) {
4427 res->sdev = sdev;
4428 res->add_to_ml = 0;
4429 res->in_erp = 0;
4430 sdev->hostdata = res;
4431 if (!ipr_is_naca_model(res))
4432 res->needs_sync_complete = 1;
4433 rc = 0;
4434 if (ipr_is_gata(res)) {
4435 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4436 return ipr_ata_slave_alloc(sdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004437 }
4438 }
4439
4440 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4441
brking@us.ibm.com692aebf2005-11-01 17:01:07 -06004442 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004443}
4444
4445/**
4446 * ipr_eh_host_reset - Reset the host adapter
4447 * @scsi_cmd: scsi command struct
4448 *
4449 * Return value:
4450 * SUCCESS / FAILED
4451 **/
Jeff Garzik df0ae242005-05-28 07:57:14 -04004452static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004453{
4454 struct ipr_ioa_cfg *ioa_cfg;
4455 int rc;
4456
4457 ENTER;
4458 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4459
4460 dev_err(&ioa_cfg->pdev->dev,
4461 "Adapter being reset as a result of error recovery.\n");
4462
4463 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4464 ioa_cfg->sdt_state = GET_DUMP;
4465
4466 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4467
4468 LEAVE;
4469 return rc;
4470}
4471
Jeff Garzik df0ae242005-05-28 07:57:14 -04004472static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4473{
4474 int rc;
4475
4476 spin_lock_irq(cmd->device->host->host_lock);
4477 rc = __ipr_eh_host_reset(cmd);
4478 spin_unlock_irq(cmd->device->host->host_lock);
4479
4480 return rc;
4481}
4482
Linus Torvalds1da177e2005-04-16 15:20:36 -07004483/**
Brian Kingc6513092006-03-29 09:37:43 -06004484 * ipr_device_reset - Reset the device
4485 * @ioa_cfg: ioa config struct
4486 * @res: resource entry struct
4487 *
4488 * This function issues a device reset to the affected device.
4489 * If the device is a SCSI device, a LUN reset will be sent
4490 * to the device first. If that does not work, a target reset
Brian King35a39692006-09-25 12:39:20 -05004491 * will be sent. If the device is a SATA device, a PHY reset will
4492 * be sent.
Brian Kingc6513092006-03-29 09:37:43 -06004493 *
4494 * Return value:
4495 * 0 on success / non-zero on failure
4496 **/
4497static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4498 struct ipr_resource_entry *res)
4499{
4500 struct ipr_cmnd *ipr_cmd;
4501 struct ipr_ioarcb *ioarcb;
4502 struct ipr_cmd_pkt *cmd_pkt;
Brian King35a39692006-09-25 12:39:20 -05004503 struct ipr_ioarcb_ata_regs *regs;
Brian Kingc6513092006-03-29 09:37:43 -06004504 u32 ioasc;
4505
4506 ENTER;
4507 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4508 ioarcb = &ipr_cmd->ioarcb;
4509 cmd_pkt = &ioarcb->cmd_pkt;
Wayne Boyera32c0552010-02-19 13:23:36 -08004510
4511 if (ipr_cmd->ioa_cfg->sis64) {
4512 regs = &ipr_cmd->i.ata_ioadl.regs;
4513 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4514 } else
4515 regs = &ioarcb->u.add_data.u.regs;
Brian Kingc6513092006-03-29 09:37:43 -06004516
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004517 ioarcb->res_handle = res->res_handle;
Brian Kingc6513092006-03-29 09:37:43 -06004518 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4519 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
Brian King35a39692006-09-25 12:39:20 -05004520 if (ipr_is_gata(res)) {
4521 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
Wayne Boyera32c0552010-02-19 13:23:36 -08004522 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
Brian King35a39692006-09-25 12:39:20 -05004523 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4524 }
Brian Kingc6513092006-03-29 09:37:43 -06004525
4526 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
Wayne Boyer96d21f02010-05-10 09:13:27 -07004527 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Brian Kingc6513092006-03-29 09:37:43 -06004528 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
Wayne Boyer96d21f02010-05-10 09:13:27 -07004529 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4530 if (ipr_cmd->ioa_cfg->sis64)
4531 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4532 sizeof(struct ipr_ioasa_gata));
4533 else
4534 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4535 sizeof(struct ipr_ioasa_gata));
4536 }
Brian Kingc6513092006-03-29 09:37:43 -06004537
4538 LEAVE;
4539 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4540}
4541
4542/**
Brian King35a39692006-09-25 12:39:20 -05004543 * ipr_sata_reset - Reset the SATA port
Tejun Heocc0680a2007-08-06 18:36:23 +09004544 * @link: SATA link to reset
Brian King35a39692006-09-25 12:39:20 -05004545 * @classes: class of the attached device
4546 *
Tejun Heocc0680a2007-08-06 18:36:23 +09004547 * This function issues a SATA phy reset to the affected ATA link.
Brian King35a39692006-09-25 12:39:20 -05004548 *
4549 * Return value:
4550 * 0 on success / non-zero on failure
4551 **/
Tejun Heocc0680a2007-08-06 18:36:23 +09004552static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
Andrew Morton120bda32007-03-26 02:17:43 -07004553 unsigned long deadline)
Brian King35a39692006-09-25 12:39:20 -05004554{
Tejun Heocc0680a2007-08-06 18:36:23 +09004555 struct ipr_sata_port *sata_port = link->ap->private_data;
Brian King35a39692006-09-25 12:39:20 -05004556 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4557 struct ipr_resource_entry *res;
4558 unsigned long lock_flags = 0;
4559 int rc = -ENXIO;
4560
4561 ENTER;
4562 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King73d98ff2006-11-21 10:27:58 -06004563 while(ioa_cfg->in_reset_reload) {
4564 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4565 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4566 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4567 }
4568
Brian King35a39692006-09-25 12:39:20 -05004569 res = sata_port->res;
4570 if (res) {
4571 rc = ipr_device_reset(ioa_cfg, res);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004572 *classes = res->ata_class;
Brian King35a39692006-09-25 12:39:20 -05004573 }
4574
4575 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4576 LEAVE;
4577 return rc;
4578}
4579
4580/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004581 * ipr_eh_dev_reset - Reset the device
4582 * @scsi_cmd: scsi command struct
4583 *
4584 * This function issues a device reset to the affected device.
4585 * A LUN reset will be sent to the device first. If that does
4586 * not work, a target reset will be sent.
4587 *
4588 * Return value:
4589 * SUCCESS / FAILED
4590 **/
Jeff Garzik 94d0e7b82005-05-28 07:55:48 -04004591static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004592{
4593 struct ipr_cmnd *ipr_cmd;
4594 struct ipr_ioa_cfg *ioa_cfg;
4595 struct ipr_resource_entry *res;
Brian King35a39692006-09-25 12:39:20 -05004596 struct ata_port *ap;
4597 int rc = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004598
4599 ENTER;
4600 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4601 res = scsi_cmd->device->hostdata;
4602
brking@us.ibm.comeeb883072005-11-01 17:02:29 -06004603 if (!res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004604 return FAILED;
4605
4606 /*
4607 * If we are currently going through reset/reload, return failed. This will force the
4608 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4609 * reset to complete
4610 */
4611 if (ioa_cfg->in_reset_reload)
4612 return FAILED;
4613 if (ioa_cfg->ioa_is_dead)
4614 return FAILED;
4615
4616 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004617 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004618 if (ipr_cmd->scsi_cmd)
4619 ipr_cmd->done = ipr_scsi_eh_done;
Brian King24d6f2b2007-03-29 12:43:17 -05004620 if (ipr_cmd->qc)
4621 ipr_cmd->done = ipr_sata_eh_done;
Brian King7402ece2006-11-21 10:28:23 -06004622 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4623 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4624 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4625 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004626 }
4627 }
4628
4629 res->resetting_device = 1;
Brian Kingfb3ed3c2006-03-29 09:37:37 -06004630 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
Brian King35a39692006-09-25 12:39:20 -05004631
4632 if (ipr_is_gata(res) && res->sata_port) {
4633 ap = res->sata_port->ap;
4634 spin_unlock_irq(scsi_cmd->device->host->host_lock);
Tejun Heoa1efdab2008-03-25 12:22:50 +09004635 ata_std_error_handler(ap);
Brian King35a39692006-09-25 12:39:20 -05004636 spin_lock_irq(scsi_cmd->device->host->host_lock);
Brian King5af23d22007-05-09 15:36:35 -05004637
4638 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004639 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
Brian King5af23d22007-05-09 15:36:35 -05004640 rc = -EIO;
4641 break;
4642 }
4643 }
Brian King35a39692006-09-25 12:39:20 -05004644 } else
4645 rc = ipr_device_reset(ioa_cfg, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004646 res->resetting_device = 0;
4647
Linus Torvalds1da177e2005-04-16 15:20:36 -07004648 LEAVE;
Brian Kingc6513092006-03-29 09:37:43 -06004649 return (rc ? FAILED : SUCCESS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004650}
4651
Jeff Garzik 94d0e7b82005-05-28 07:55:48 -04004652static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4653{
4654 int rc;
4655
4656 spin_lock_irq(cmd->device->host->host_lock);
4657 rc = __ipr_eh_dev_reset(cmd);
4658 spin_unlock_irq(cmd->device->host->host_lock);
4659
4660 return rc;
4661}
4662
Linus Torvalds1da177e2005-04-16 15:20:36 -07004663/**
4664 * ipr_bus_reset_done - Op done function for bus reset.
4665 * @ipr_cmd: ipr command struct
4666 *
4667 * This function is the op done function for a bus reset
4668 *
4669 * Return value:
4670 * none
4671 **/
4672static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4673{
4674 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4675 struct ipr_resource_entry *res;
4676
4677 ENTER;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004678 if (!ioa_cfg->sis64)
4679 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4680 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4681 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4682 break;
4683 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004684 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004685
4686 /*
4687 * If abort has not completed, indicate the reset has, else call the
4688 * abort's done function to wake the sleeping eh thread
4689 */
4690 if (ipr_cmd->sibling->sibling)
4691 ipr_cmd->sibling->sibling = NULL;
4692 else
4693 ipr_cmd->sibling->done(ipr_cmd->sibling);
4694
4695 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4696 LEAVE;
4697}
4698
4699/**
4700 * ipr_abort_timeout - An abort task has timed out
4701 * @ipr_cmd: ipr command struct
4702 *
4703 * This function handles when an abort task times out. If this
4704 * happens we issue a bus reset since we have resources tied
4705 * up that must be freed before returning to the midlayer.
4706 *
4707 * Return value:
4708 * none
4709 **/
4710static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4711{
4712 struct ipr_cmnd *reset_cmd;
4713 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4714 struct ipr_cmd_pkt *cmd_pkt;
4715 unsigned long lock_flags = 0;
4716
4717 ENTER;
4718 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4719 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4720 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4721 return;
4722 }
4723
Brian Kingfb3ed3c2006-03-29 09:37:37 -06004724 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07004725 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4726 ipr_cmd->sibling = reset_cmd;
4727 reset_cmd->sibling = ipr_cmd;
4728 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4729 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4730 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4731 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4732 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4733
4734 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4735 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4736 LEAVE;
4737}
4738
4739/**
4740 * ipr_cancel_op - Cancel specified op
4741 * @scsi_cmd: scsi command struct
4742 *
4743 * This function cancels specified op.
4744 *
4745 * Return value:
4746 * SUCCESS / FAILED
4747 **/
4748static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4749{
4750 struct ipr_cmnd *ipr_cmd;
4751 struct ipr_ioa_cfg *ioa_cfg;
4752 struct ipr_resource_entry *res;
4753 struct ipr_cmd_pkt *cmd_pkt;
4754 u32 ioasc;
4755 int op_found = 0;
4756
4757 ENTER;
4758 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4759 res = scsi_cmd->device->hostdata;
4760
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04004761 /* If we are currently going through reset/reload, return failed.
4762 * This will force the mid-layer to call ipr_eh_host_reset,
4763 * which will then go to sleep and wait for the reset to complete
4764 */
4765 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4766 return FAILED;
Brian King04d97682006-11-21 10:28:04 -06004767 if (!res || !ipr_is_gscsi(res))
Linus Torvalds1da177e2005-04-16 15:20:36 -07004768 return FAILED;
4769
4770 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4771 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4772 ipr_cmd->done = ipr_scsi_eh_done;
4773 op_found = 1;
4774 break;
4775 }
4776 }
4777
4778 if (!op_found)
4779 return SUCCESS;
4780
4781 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004782 ipr_cmd->ioarcb.res_handle = res->res_handle;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004783 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4784 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4785 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4786 ipr_cmd->u.sdev = scsi_cmd->device;
4787
Brian Kingfb3ed3c2006-03-29 09:37:37 -06004788 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4789 scsi_cmd->cmnd[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004790 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
Wayne Boyer96d21f02010-05-10 09:13:27 -07004791 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004792
4793 /*
4794 * If the abort task timed out and we sent a bus reset, we will get
4795 * one the following responses to the abort
4796 */
4797 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4798 ioasc = 0;
4799 ipr_trace;
4800 }
4801
4802 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06004803 if (!ipr_is_naca_model(res))
4804 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004805
4806 LEAVE;
4807 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4808}
4809
4810/**
4811 * ipr_eh_abort - Abort a single op
4812 * @scsi_cmd: scsi command struct
4813 *
4814 * Return value:
4815 * SUCCESS / FAILED
4816 **/
4817static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4818{
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04004819 unsigned long flags;
4820 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004821
4822 ENTER;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004823
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04004824 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4825 rc = ipr_cancel_op(scsi_cmd);
4826 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004827
4828 LEAVE;
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04004829 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004830}
4831
4832/**
4833 * ipr_handle_other_interrupt - Handle "other" interrupts
4834 * @ioa_cfg: ioa config struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07004835 *
4836 * Return value:
4837 * IRQ_NONE / IRQ_HANDLED
4838 **/
Wayne Boyer64ffdb72010-05-19 11:56:13 -07004839static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004840{
4841 irqreturn_t rc = IRQ_HANDLED;
Wayne Boyer64ffdb72010-05-19 11:56:13 -07004842 volatile u32 int_reg, int_mask_reg;
4843
4844 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
4845 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
4846
4847 /* If an interrupt on the adapter did not occur, ignore it.
4848 * Or in the case of SIS 64, check for a stage change interrupt.
4849 */
4850 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
4851 if (ioa_cfg->sis64) {
4852 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4853 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4854 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
4855
4856 /* clear stage change */
4857 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
4858 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4859 list_del(&ioa_cfg->reset_cmd->queue);
4860 del_timer(&ioa_cfg->reset_cmd->timer);
4861 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4862 return IRQ_HANDLED;
4863 }
4864 }
4865
4866 return IRQ_NONE;
4867 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004868
4869 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4870 /* Mask the interrupt */
4871 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4872
4873 /* Clear the interrupt */
4874 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4875 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4876
4877 list_del(&ioa_cfg->reset_cmd->queue);
4878 del_timer(&ioa_cfg->reset_cmd->timer);
4879 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4880 } else {
4881 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4882 ioa_cfg->ioa_unit_checked = 1;
4883 else
4884 dev_err(&ioa_cfg->pdev->dev,
4885 "Permanent IOA failure. 0x%08X\n", int_reg);
4886
4887 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4888 ioa_cfg->sdt_state = GET_DUMP;
4889
4890 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4891 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4892 }
4893
4894 return rc;
4895}
4896
4897/**
Wayne Boyer3feeb89d2009-10-20 11:09:00 -07004898 * ipr_isr_eh - Interrupt service routine error handler
4899 * @ioa_cfg: ioa config struct
4900 * @msg: message to log
4901 *
4902 * Return value:
4903 * none
4904 **/
4905static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4906{
4907 ioa_cfg->errors_logged++;
4908 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
4909
4910 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4911 ioa_cfg->sdt_state = GET_DUMP;
4912
4913 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4914}
4915
4916/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004917 * ipr_isr - Interrupt service routine
4918 * @irq: irq number
4919 * @devp: pointer to ioa config struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07004920 *
4921 * Return value:
4922 * IRQ_NONE / IRQ_HANDLED
4923 **/
David Howells7d12e782006-10-05 14:55:46 +01004924static irqreturn_t ipr_isr(int irq, void *devp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004925{
4926 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4927 unsigned long lock_flags = 0;
Wayne Boyer64ffdb72010-05-19 11:56:13 -07004928 volatile u32 int_reg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004929 u32 ioasc;
4930 u16 cmd_index;
Wayne Boyer3feeb89d2009-10-20 11:09:00 -07004931 int num_hrrq = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004932 struct ipr_cmnd *ipr_cmd;
4933 irqreturn_t rc = IRQ_NONE;
4934
4935 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4936
4937 /* If interrupts are disabled, ignore the interrupt */
4938 if (!ioa_cfg->allow_interrupts) {
4939 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4940 return IRQ_NONE;
4941 }
4942
Linus Torvalds1da177e2005-04-16 15:20:36 -07004943 while (1) {
4944 ipr_cmd = NULL;
4945
4946 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4947 ioa_cfg->toggle_bit) {
4948
4949 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4950 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4951
4952 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
Wayne Boyer3feeb89d2009-10-20 11:09:00 -07004953 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
Linus Torvalds1da177e2005-04-16 15:20:36 -07004954 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4955 return IRQ_HANDLED;
4956 }
4957
4958 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4959
Wayne Boyer96d21f02010-05-10 09:13:27 -07004960 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004961
4962 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4963
4964 list_del(&ipr_cmd->queue);
4965 del_timer(&ipr_cmd->timer);
4966 ipr_cmd->done(ipr_cmd);
4967
4968 rc = IRQ_HANDLED;
4969
4970 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4971 ioa_cfg->hrrq_curr++;
4972 } else {
4973 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4974 ioa_cfg->toggle_bit ^= 1u;
4975 }
4976 }
4977
4978 if (ipr_cmd != NULL) {
4979 /* Clear the PCI interrupt */
Wayne Boyer3feeb89d2009-10-20 11:09:00 -07004980 do {
Wayne Boyer214777b2010-02-19 13:24:26 -08004981 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
Wayne Boyer64ffdb72010-05-19 11:56:13 -07004982 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
Wayne Boyer3feeb89d2009-10-20 11:09:00 -07004983 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
4984 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
4985
4986 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
4987 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
4988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4989 return IRQ_HANDLED;
4990 }
4991
Linus Torvalds1da177e2005-04-16 15:20:36 -07004992 } else
4993 break;
4994 }
4995
4996 if (unlikely(rc == IRQ_NONE))
Wayne Boyer64ffdb72010-05-19 11:56:13 -07004997 rc = ipr_handle_other_interrupt(ioa_cfg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004998
4999 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5000 return rc;
5001}
5002
5003/**
Wayne Boyera32c0552010-02-19 13:23:36 -08005004 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
Linus Torvalds1da177e2005-04-16 15:20:36 -07005005 * @ioa_cfg: ioa config struct
5006 * @ipr_cmd: ipr command struct
5007 *
5008 * Return value:
5009 * 0 on success / -1 on failure
5010 **/
Wayne Boyera32c0552010-02-19 13:23:36 -08005011static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5012 struct ipr_cmnd *ipr_cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005013{
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005014 int i, nseg;
5015 struct scatterlist *sg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005016 u32 length;
5017 u32 ioadl_flags = 0;
5018 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5019 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyera32c0552010-02-19 13:23:36 -08005020 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005021
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005022 length = scsi_bufflen(scsi_cmd);
5023 if (!length)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005024 return 0;
5025
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005026 nseg = scsi_dma_map(scsi_cmd);
5027 if (nseg < 0) {
5028 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5029 return -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005030 }
5031
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005032 ipr_cmd->dma_use_sg = nseg;
5033
Wayne Boyer438b0332010-05-10 09:13:00 -07005034 ioarcb->data_transfer_length = cpu_to_be32(length);
Wayne Boyerb8803b12010-05-14 08:55:13 -07005035 ioarcb->ioadl_len =
5036 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
Wayne Boyer438b0332010-05-10 09:13:00 -07005037
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005038 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5039 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5040 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
Wayne Boyera32c0552010-02-19 13:23:36 -08005041 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5042 ioadl_flags = IPR_IOADL_FLAGS_READ;
5043
5044 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5045 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5046 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5047 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5048 }
5049
5050 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5051 return 0;
5052}
5053
5054/**
5055 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5056 * @ioa_cfg: ioa config struct
5057 * @ipr_cmd: ipr command struct
5058 *
5059 * Return value:
5060 * 0 on success / -1 on failure
5061 **/
5062static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5063 struct ipr_cmnd *ipr_cmd)
5064{
5065 int i, nseg;
5066 struct scatterlist *sg;
5067 u32 length;
5068 u32 ioadl_flags = 0;
5069 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5070 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5071 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5072
5073 length = scsi_bufflen(scsi_cmd);
5074 if (!length)
5075 return 0;
5076
5077 nseg = scsi_dma_map(scsi_cmd);
5078 if (nseg < 0) {
5079 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5080 return -1;
5081 }
5082
5083 ipr_cmd->dma_use_sg = nseg;
5084
5085 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5086 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5087 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5088 ioarcb->data_transfer_length = cpu_to_be32(length);
5089 ioarcb->ioadl_len =
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005090 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5091 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5092 ioadl_flags = IPR_IOADL_FLAGS_READ;
5093 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5094 ioarcb->read_ioadl_len =
5095 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5096 }
5097
Wayne Boyera32c0552010-02-19 13:23:36 -08005098 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5099 ioadl = ioarcb->u.add_data.u.ioadl;
5100 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5101 offsetof(struct ipr_ioarcb, u.add_data));
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005102 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5103 }
5104
5105 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5106 ioadl[i].flags_and_data_len =
5107 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5108 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5109 }
5110
5111 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5112 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005113}
5114
5115/**
5116 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5117 * @scsi_cmd: scsi command struct
5118 *
5119 * Return value:
5120 * task attributes
5121 **/
5122static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5123{
5124 u8 tag[2];
5125 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5126
5127 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5128 switch (tag[0]) {
5129 case MSG_SIMPLE_TAG:
5130 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5131 break;
5132 case MSG_HEAD_TAG:
5133 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5134 break;
5135 case MSG_ORDERED_TAG:
5136 rc = IPR_FLAGS_LO_ORDERED_TASK;
5137 break;
5138 };
5139 }
5140
5141 return rc;
5142}
5143
5144/**
5145 * ipr_erp_done - Process completion of ERP for a device
5146 * @ipr_cmd: ipr command struct
5147 *
5148 * This function copies the sense buffer into the scsi_cmd
5149 * struct and pushes the scsi_done function.
5150 *
5151 * Return value:
5152 * nothing
5153 **/
5154static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5155{
5156 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5157 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5158 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005159 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005160
5161 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5162 scsi_cmd->result |= (DID_ERROR << 16);
Brian Kingfb3ed3c2006-03-29 09:37:37 -06005163 scmd_printk(KERN_ERR, scsi_cmd,
5164 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005165 } else {
5166 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5167 SCSI_SENSE_BUFFERSIZE);
5168 }
5169
5170 if (res) {
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005171 if (!ipr_is_naca_model(res))
5172 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005173 res->in_erp = 0;
5174 }
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005175 scsi_dma_unmap(ipr_cmd->scsi_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005176 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5177 scsi_cmd->scsi_done(scsi_cmd);
5178}
5179
5180/**
5181 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5182 * @ipr_cmd: ipr command struct
5183 *
5184 * Return value:
5185 * none
5186 **/
5187static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5188{
Brian King51b1c7e2007-03-29 12:43:50 -05005189 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005190 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
Wayne Boyera32c0552010-02-19 13:23:36 -08005191 dma_addr_t dma_addr = ipr_cmd->dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005192
5193 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
Wayne Boyera32c0552010-02-19 13:23:36 -08005194 ioarcb->data_transfer_length = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005195 ioarcb->read_data_transfer_length = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -08005196 ioarcb->ioadl_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005197 ioarcb->read_ioadl_len = 0;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005198 ioasa->hdr.ioasc = 0;
5199 ioasa->hdr.residual_data_len = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -08005200
5201 if (ipr_cmd->ioa_cfg->sis64)
5202 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5203 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5204 else {
5205 ioarcb->write_ioadl_addr =
5206 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5207 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5208 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005209}
5210
5211/**
5212 * ipr_erp_request_sense - Send request sense to a device
5213 * @ipr_cmd: ipr command struct
5214 *
5215 * This function sends a request sense to a device as a result
5216 * of a check condition.
5217 *
5218 * Return value:
5219 * nothing
5220 **/
5221static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5222{
5223 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005224 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005225
5226 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5227 ipr_erp_done(ipr_cmd);
5228 return;
5229 }
5230
5231 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5232
5233 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5234 cmd_pkt->cdb[0] = REQUEST_SENSE;
5235 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5236 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5237 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5238 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5239
Wayne Boyera32c0552010-02-19 13:23:36 -08005240 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5241 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005242
5243 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5244 IPR_REQUEST_SENSE_TIMEOUT * 2);
5245}
5246
5247/**
5248 * ipr_erp_cancel_all - Send cancel all to a device
5249 * @ipr_cmd: ipr command struct
5250 *
5251 * This function sends a cancel all to a device to clear the
5252 * queue. If we are running TCQ on the device, QERR is set to 1,
5253 * which means all outstanding ops have been dropped on the floor.
5254 * Cancel all will return them to us.
5255 *
5256 * Return value:
5257 * nothing
5258 **/
5259static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5260{
5261 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5262 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5263 struct ipr_cmd_pkt *cmd_pkt;
5264
5265 res->in_erp = 1;
5266
5267 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5268
5269 if (!scsi_get_tag_type(scsi_cmd->device)) {
5270 ipr_erp_request_sense(ipr_cmd);
5271 return;
5272 }
5273
5274 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5275 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5276 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5277
5278 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5279 IPR_CANCEL_ALL_TIMEOUT);
5280}
5281
5282/**
5283 * ipr_dump_ioasa - Dump contents of IOASA
5284 * @ioa_cfg: ioa config struct
5285 * @ipr_cmd: ipr command struct
Brian Kingfe964d02006-03-29 09:37:29 -06005286 * @res: resource entry struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07005287 *
5288 * This function is invoked by the interrupt handler when ops
5289 * fail. It will log the IOASA if appropriate. Only called
5290 * for GPDD ops.
5291 *
5292 * Return value:
5293 * none
5294 **/
5295static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
Brian Kingfe964d02006-03-29 09:37:29 -06005296 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005297{
5298 int i;
5299 u16 data_len;
Brian Kingb0692dd2007-03-29 12:43:09 -05005300 u32 ioasc, fd_ioasc;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005301 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005302 __be32 *ioasa_data = (__be32 *)ioasa;
5303 int error_index;
5304
Wayne Boyer96d21f02010-05-10 09:13:27 -07005305 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5306 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005307
5308 if (0 == ioasc)
5309 return;
5310
5311 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5312 return;
5313
Brian Kingb0692dd2007-03-29 12:43:09 -05005314 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5315 error_index = ipr_get_error(fd_ioasc);
5316 else
5317 error_index = ipr_get_error(ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005318
5319 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5320 /* Don't log an error if the IOA already logged one */
Wayne Boyer96d21f02010-05-10 09:13:27 -07005321 if (ioasa->hdr.ilid != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005322 return;
5323
Brian Kingcc9bd5d2007-03-29 12:43:01 -05005324 if (!ipr_is_gscsi(res))
5325 return;
5326
Linus Torvalds1da177e2005-04-16 15:20:36 -07005327 if (ipr_error_table[error_index].log_ioasa == 0)
5328 return;
5329 }
5330
Brian Kingfe964d02006-03-29 09:37:29 -06005331 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005332
Wayne Boyer96d21f02010-05-10 09:13:27 -07005333 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5334 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5335 data_len = sizeof(struct ipr_ioasa64);
5336 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005337 data_len = sizeof(struct ipr_ioasa);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005338
5339 ipr_err("IOASA Dump:\n");
5340
5341 for (i = 0; i < data_len / 4; i += 4) {
5342 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5343 be32_to_cpu(ioasa_data[i]),
5344 be32_to_cpu(ioasa_data[i+1]),
5345 be32_to_cpu(ioasa_data[i+2]),
5346 be32_to_cpu(ioasa_data[i+3]));
5347 }
5348}
5349
5350/**
5351 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5352 * @ioasa: IOASA
5353 * @sense_buf: sense data buffer
5354 *
5355 * Return value:
5356 * none
5357 **/
5358static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5359{
5360 u32 failing_lba;
5361 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5362 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005363 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5364 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005365
5366 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5367
5368 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5369 return;
5370
5371 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5372
5373 if (ipr_is_vset_device(res) &&
5374 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5375 ioasa->u.vset.failing_lba_hi != 0) {
5376 sense_buf[0] = 0x72;
5377 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5378 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5379 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5380
5381 sense_buf[7] = 12;
5382 sense_buf[8] = 0;
5383 sense_buf[9] = 0x0A;
5384 sense_buf[10] = 0x80;
5385
5386 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5387
5388 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5389 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5390 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5391 sense_buf[15] = failing_lba & 0x000000ff;
5392
5393 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5394
5395 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5396 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5397 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5398 sense_buf[19] = failing_lba & 0x000000ff;
5399 } else {
5400 sense_buf[0] = 0x70;
5401 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5402 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5403 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5404
5405 /* Illegal request */
5406 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
Wayne Boyer96d21f02010-05-10 09:13:27 -07005407 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005408 sense_buf[7] = 10; /* additional length */
5409
5410 /* IOARCB was in error */
5411 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5412 sense_buf[15] = 0xC0;
5413 else /* Parameter data was invalid */
5414 sense_buf[15] = 0x80;
5415
5416 sense_buf[16] =
5417 ((IPR_FIELD_POINTER_MASK &
Wayne Boyer96d21f02010-05-10 09:13:27 -07005418 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005419 sense_buf[17] =
5420 (IPR_FIELD_POINTER_MASK &
Wayne Boyer96d21f02010-05-10 09:13:27 -07005421 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005422 } else {
5423 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5424 if (ipr_is_vset_device(res))
5425 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5426 else
5427 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5428
5429 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5430 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5431 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5432 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5433 sense_buf[6] = failing_lba & 0x000000ff;
5434 }
5435
5436 sense_buf[7] = 6; /* additional length */
5437 }
5438 }
5439}
5440
5441/**
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005442 * ipr_get_autosense - Copy autosense data to sense buffer
5443 * @ipr_cmd: ipr command struct
5444 *
5445 * This function copies the autosense buffer to the buffer
5446 * in the scsi_cmd, if there is autosense available.
5447 *
5448 * Return value:
5449 * 1 if autosense was available / 0 if not
5450 **/
5451static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5452{
Wayne Boyer96d21f02010-05-10 09:13:27 -07005453 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5454 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005455
Wayne Boyer96d21f02010-05-10 09:13:27 -07005456 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005457 return 0;
5458
Wayne Boyer96d21f02010-05-10 09:13:27 -07005459 if (ipr_cmd->ioa_cfg->sis64)
5460 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5461 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5462 SCSI_SENSE_BUFFERSIZE));
5463 else
5464 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5465 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5466 SCSI_SENSE_BUFFERSIZE));
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005467 return 1;
5468}
5469
5470/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07005471 * ipr_erp_start - Process an error response for a SCSI op
5472 * @ioa_cfg: ioa config struct
5473 * @ipr_cmd: ipr command struct
5474 *
5475 * This function determines whether or not to initiate ERP
5476 * on the affected device.
5477 *
5478 * Return value:
5479 * nothing
5480 **/
5481static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5482 struct ipr_cmnd *ipr_cmd)
5483{
5484 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5485 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005486 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Brian King8a048992007-04-26 16:00:10 -05005487 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005488
5489 if (!res) {
5490 ipr_scsi_eh_done(ipr_cmd);
5491 return;
5492 }
5493
Brian King8a048992007-04-26 16:00:10 -05005494 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005495 ipr_gen_sense(ipr_cmd);
5496
Brian Kingcc9bd5d2007-03-29 12:43:01 -05005497 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5498
Brian King8a048992007-04-26 16:00:10 -05005499 switch (masked_ioasc) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005500 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005501 if (ipr_is_naca_model(res))
5502 scsi_cmd->result |= (DID_ABORT << 16);
5503 else
5504 scsi_cmd->result |= (DID_IMM_RETRY << 16);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005505 break;
5506 case IPR_IOASC_IR_RESOURCE_HANDLE:
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06005507 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
Linus Torvalds1da177e2005-04-16 15:20:36 -07005508 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5509 break;
5510 case IPR_IOASC_HW_SEL_TIMEOUT:
5511 scsi_cmd->result |= (DID_NO_CONNECT << 16);
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005512 if (!ipr_is_naca_model(res))
5513 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005514 break;
5515 case IPR_IOASC_SYNC_REQUIRED:
5516 if (!res->in_erp)
5517 res->needs_sync_complete = 1;
5518 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5519 break;
5520 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06005521 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
Linus Torvalds1da177e2005-04-16 15:20:36 -07005522 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5523 break;
5524 case IPR_IOASC_BUS_WAS_RESET:
5525 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5526 /*
5527 * Report the bus reset and ask for a retry. The device
5528 * will give CC/UA the next command.
5529 */
5530 if (!res->resetting_device)
5531 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5532 scsi_cmd->result |= (DID_ERROR << 16);
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005533 if (!ipr_is_naca_model(res))
5534 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005535 break;
5536 case IPR_IOASC_HW_DEV_BUS_STATUS:
5537 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5538 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005539 if (!ipr_get_autosense(ipr_cmd)) {
5540 if (!ipr_is_naca_model(res)) {
5541 ipr_erp_cancel_all(ipr_cmd);
5542 return;
5543 }
5544 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005545 }
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005546 if (!ipr_is_naca_model(res))
5547 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005548 break;
5549 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5550 break;
5551 default:
Brian King5b7304f2006-08-02 14:57:51 -05005552 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5553 scsi_cmd->result |= (DID_ERROR << 16);
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005554 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005555 res->needs_sync_complete = 1;
5556 break;
5557 }
5558
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005559 scsi_dma_unmap(ipr_cmd->scsi_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005560 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5561 scsi_cmd->scsi_done(scsi_cmd);
5562}
5563
5564/**
5565 * ipr_scsi_done - mid-layer done function
5566 * @ipr_cmd: ipr command struct
5567 *
5568 * This function is invoked by the interrupt handler for
5569 * ops generated by the SCSI mid-layer
5570 *
5571 * Return value:
5572 * none
5573 **/
5574static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5575{
5576 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5577 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005578 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005579
Wayne Boyer96d21f02010-05-10 09:13:27 -07005580 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005581
5582 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005583 scsi_dma_unmap(ipr_cmd->scsi_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005584 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5585 scsi_cmd->scsi_done(scsi_cmd);
5586 } else
5587 ipr_erp_start(ioa_cfg, ipr_cmd);
5588}
5589
5590/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07005591 * ipr_queuecommand - Queue a mid-layer request
5592 * @scsi_cmd: scsi command struct
5593 * @done: done function
5594 *
5595 * This function queues a request generated by the mid-layer.
5596 *
5597 * Return value:
5598 * 0 on success
5599 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5600 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5601 **/
5602static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
5603 void (*done) (struct scsi_cmnd *))
5604{
5605 struct ipr_ioa_cfg *ioa_cfg;
5606 struct ipr_resource_entry *res;
5607 struct ipr_ioarcb *ioarcb;
5608 struct ipr_cmnd *ipr_cmd;
5609 int rc = 0;
5610
5611 scsi_cmd->scsi_done = done;
5612 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5613 res = scsi_cmd->device->hostdata;
5614 scsi_cmd->result = (DID_OK << 16);
5615
5616 /*
5617 * We are currently blocking all devices due to a host reset
5618 * We have told the host to stop giving us new requests, but
5619 * ERP ops don't count. FIXME
5620 */
5621 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5622 return SCSI_MLQUEUE_HOST_BUSY;
5623
5624 /*
5625 * FIXME - Create scsi_set_host_offline interface
5626 * and the ioa_is_dead check can be removed
5627 */
5628 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5629 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5630 scsi_cmd->result = (DID_NO_CONNECT << 16);
5631 scsi_cmd->scsi_done(scsi_cmd);
5632 return 0;
5633 }
5634
Brian King35a39692006-09-25 12:39:20 -05005635 if (ipr_is_gata(res) && res->sata_port)
5636 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
5637
Linus Torvalds1da177e2005-04-16 15:20:36 -07005638 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5639 ioarcb = &ipr_cmd->ioarcb;
5640 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5641
5642 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5643 ipr_cmd->scsi_cmd = scsi_cmd;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08005644 ioarcb->res_handle = res->res_handle;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005645 ipr_cmd->done = ipr_scsi_done;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08005646 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005647
5648 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5649 if (scsi_cmd->underflow == 0)
5650 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5651
5652 if (res->needs_sync_complete) {
5653 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5654 res->needs_sync_complete = 0;
5655 }
5656
5657 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5658 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5659 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5660 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5661 }
5662
5663 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5664 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5665 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5666
Wayne Boyera32c0552010-02-19 13:23:36 -08005667 if (likely(rc == 0)) {
5668 if (ioa_cfg->sis64)
5669 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5670 else
5671 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5672 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005673
5674 if (likely(rc == 0)) {
5675 mb();
Wayne Boyera32c0552010-02-19 13:23:36 -08005676 ipr_send_command(ipr_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005677 } else {
5678 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5679 return SCSI_MLQUEUE_HOST_BUSY;
5680 }
5681
5682 return 0;
5683}
5684
5685/**
Brian King35a39692006-09-25 12:39:20 -05005686 * ipr_ioctl - IOCTL handler
5687 * @sdev: scsi device struct
5688 * @cmd: IOCTL cmd
5689 * @arg: IOCTL arg
5690 *
5691 * Return value:
5692 * 0 on success / other on failure
5693 **/
Adrian Bunkbd705f22006-11-21 10:28:48 -06005694static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
Brian King35a39692006-09-25 12:39:20 -05005695{
5696 struct ipr_resource_entry *res;
5697
5698 res = (struct ipr_resource_entry *)sdev->hostdata;
Brian King0ce3a7e2008-07-11 13:37:50 -05005699 if (res && ipr_is_gata(res)) {
5700 if (cmd == HDIO_GET_IDENTITY)
5701 return -ENOTTY;
Jeff Garzik94be9a52009-01-16 10:17:09 -05005702 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
Brian King0ce3a7e2008-07-11 13:37:50 -05005703 }
Brian King35a39692006-09-25 12:39:20 -05005704
5705 return -EINVAL;
5706}
5707
5708/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07005709 * ipr_info - Get information about the card/driver
5710 * @scsi_host: scsi host struct
5711 *
5712 * Return value:
5713 * pointer to buffer with description string
5714 **/
5715static const char * ipr_ioa_info(struct Scsi_Host *host)
5716{
5717 static char buffer[512];
5718 struct ipr_ioa_cfg *ioa_cfg;
5719 unsigned long lock_flags = 0;
5720
5721 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5722
5723 spin_lock_irqsave(host->host_lock, lock_flags);
5724 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5725 spin_unlock_irqrestore(host->host_lock, lock_flags);
5726
5727 return buffer;
5728}
5729
5730static struct scsi_host_template driver_template = {
5731 .module = THIS_MODULE,
5732 .name = "IPR",
5733 .info = ipr_ioa_info,
Brian King35a39692006-09-25 12:39:20 -05005734 .ioctl = ipr_ioctl,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005735 .queuecommand = ipr_queuecommand,
5736 .eh_abort_handler = ipr_eh_abort,
5737 .eh_device_reset_handler = ipr_eh_dev_reset,
5738 .eh_host_reset_handler = ipr_eh_host_reset,
5739 .slave_alloc = ipr_slave_alloc,
5740 .slave_configure = ipr_slave_configure,
5741 .slave_destroy = ipr_slave_destroy,
Brian King35a39692006-09-25 12:39:20 -05005742 .target_alloc = ipr_target_alloc,
5743 .target_destroy = ipr_target_destroy,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005744 .change_queue_depth = ipr_change_queue_depth,
5745 .change_queue_type = ipr_change_queue_type,
5746 .bios_param = ipr_biosparam,
5747 .can_queue = IPR_MAX_COMMANDS,
5748 .this_id = -1,
5749 .sg_tablesize = IPR_MAX_SGLIST,
5750 .max_sectors = IPR_IOA_MAX_SECTORS,
5751 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5752 .use_clustering = ENABLE_CLUSTERING,
5753 .shost_attrs = ipr_ioa_attrs,
5754 .sdev_attrs = ipr_dev_attrs,
5755 .proc_name = IPR_NAME
5756};
5757
Brian King35a39692006-09-25 12:39:20 -05005758/**
5759 * ipr_ata_phy_reset - libata phy_reset handler
5760 * @ap: ata port to reset
5761 *
5762 **/
5763static void ipr_ata_phy_reset(struct ata_port *ap)
5764{
5765 unsigned long flags;
5766 struct ipr_sata_port *sata_port = ap->private_data;
5767 struct ipr_resource_entry *res = sata_port->res;
5768 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5769 int rc;
5770
5771 ENTER;
5772 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5773 while(ioa_cfg->in_reset_reload) {
5774 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5775 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5776 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5777 }
5778
5779 if (!ioa_cfg->allow_cmds)
5780 goto out_unlock;
5781
5782 rc = ipr_device_reset(ioa_cfg, res);
5783
5784 if (rc) {
Tejun Heo3e4ec342010-05-10 21:41:30 +02005785 ap->link.device[0].class = ATA_DEV_NONE;
Brian King35a39692006-09-25 12:39:20 -05005786 goto out_unlock;
5787 }
5788
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08005789 ap->link.device[0].class = res->ata_class;
5790 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
Tejun Heo3e4ec342010-05-10 21:41:30 +02005791 ap->link.device[0].class = ATA_DEV_NONE;
Brian King35a39692006-09-25 12:39:20 -05005792
5793out_unlock:
5794 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5795 LEAVE;
5796}
5797
5798/**
5799 * ipr_ata_post_internal - Cleanup after an internal command
5800 * @qc: ATA queued command
5801 *
5802 * Return value:
5803 * none
5804 **/
5805static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5806{
5807 struct ipr_sata_port *sata_port = qc->ap->private_data;
5808 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5809 struct ipr_cmnd *ipr_cmd;
5810 unsigned long flags;
5811
5812 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
Brian King73d98ff2006-11-21 10:27:58 -06005813 while(ioa_cfg->in_reset_reload) {
5814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5815 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5816 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5817 }
5818
Brian King35a39692006-09-25 12:39:20 -05005819 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5820 if (ipr_cmd->qc == qc) {
5821 ipr_device_reset(ioa_cfg, sata_port->res);
5822 break;
5823 }
5824 }
5825 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5826}
5827
5828/**
Brian King35a39692006-09-25 12:39:20 -05005829 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5830 * @regs: destination
5831 * @tf: source ATA taskfile
5832 *
5833 * Return value:
5834 * none
5835 **/
5836static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5837 struct ata_taskfile *tf)
5838{
5839 regs->feature = tf->feature;
5840 regs->nsect = tf->nsect;
5841 regs->lbal = tf->lbal;
5842 regs->lbam = tf->lbam;
5843 regs->lbah = tf->lbah;
5844 regs->device = tf->device;
5845 regs->command = tf->command;
5846 regs->hob_feature = tf->hob_feature;
5847 regs->hob_nsect = tf->hob_nsect;
5848 regs->hob_lbal = tf->hob_lbal;
5849 regs->hob_lbam = tf->hob_lbam;
5850 regs->hob_lbah = tf->hob_lbah;
5851 regs->ctl = tf->ctl;
5852}
5853
5854/**
5855 * ipr_sata_done - done function for SATA commands
5856 * @ipr_cmd: ipr command struct
5857 *
5858 * This function is invoked by the interrupt handler for
5859 * ops generated by the SCSI mid-layer to SATA devices
5860 *
5861 * Return value:
5862 * none
5863 **/
5864static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5865{
5866 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5867 struct ata_queued_cmd *qc = ipr_cmd->qc;
5868 struct ipr_sata_port *sata_port = qc->ap->private_data;
5869 struct ipr_resource_entry *res = sata_port->res;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005870 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Brian King35a39692006-09-25 12:39:20 -05005871
Wayne Boyer96d21f02010-05-10 09:13:27 -07005872 if (ipr_cmd->ioa_cfg->sis64)
5873 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5874 sizeof(struct ipr_ioasa_gata));
5875 else
5876 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5877 sizeof(struct ipr_ioasa_gata));
Brian King35a39692006-09-25 12:39:20 -05005878 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5879
Wayne Boyer96d21f02010-05-10 09:13:27 -07005880 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08005881 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
Brian King35a39692006-09-25 12:39:20 -05005882
5883 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
Wayne Boyer96d21f02010-05-10 09:13:27 -07005884 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
Brian King35a39692006-09-25 12:39:20 -05005885 else
Wayne Boyer96d21f02010-05-10 09:13:27 -07005886 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
Brian King35a39692006-09-25 12:39:20 -05005887 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5888 ata_qc_complete(qc);
5889}
5890
5891/**
Wayne Boyera32c0552010-02-19 13:23:36 -08005892 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
5893 * @ipr_cmd: ipr command struct
5894 * @qc: ATA queued command
5895 *
5896 **/
5897static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
5898 struct ata_queued_cmd *qc)
5899{
5900 u32 ioadl_flags = 0;
5901 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5902 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5903 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
5904 int len = qc->nbytes;
5905 struct scatterlist *sg;
5906 unsigned int si;
5907 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5908
5909 if (len == 0)
5910 return;
5911
5912 if (qc->dma_dir == DMA_TO_DEVICE) {
5913 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5914 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5915 } else if (qc->dma_dir == DMA_FROM_DEVICE)
5916 ioadl_flags = IPR_IOADL_FLAGS_READ;
5917
5918 ioarcb->data_transfer_length = cpu_to_be32(len);
5919 ioarcb->ioadl_len =
5920 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5921 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5922 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
5923
5924 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5925 ioadl64->flags = cpu_to_be32(ioadl_flags);
5926 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
5927 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
5928
5929 last_ioadl64 = ioadl64;
5930 ioadl64++;
5931 }
5932
5933 if (likely(last_ioadl64))
5934 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5935}
5936
5937/**
Brian King35a39692006-09-25 12:39:20 -05005938 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5939 * @ipr_cmd: ipr command struct
5940 * @qc: ATA queued command
5941 *
5942 **/
5943static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5944 struct ata_queued_cmd *qc)
5945{
5946 u32 ioadl_flags = 0;
5947 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyera32c0552010-02-19 13:23:36 -08005948 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
Jeff Garzik3be6cbd2007-10-18 16:21:18 -04005949 struct ipr_ioadl_desc *last_ioadl = NULL;
James Bottomleydde20202008-02-19 11:36:56 +01005950 int len = qc->nbytes;
Brian King35a39692006-09-25 12:39:20 -05005951 struct scatterlist *sg;
Tejun Heoff2aeb12007-12-05 16:43:11 +09005952 unsigned int si;
Brian King35a39692006-09-25 12:39:20 -05005953
5954 if (len == 0)
5955 return;
5956
5957 if (qc->dma_dir == DMA_TO_DEVICE) {
5958 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5959 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
Wayne Boyera32c0552010-02-19 13:23:36 -08005960 ioarcb->data_transfer_length = cpu_to_be32(len);
5961 ioarcb->ioadl_len =
Brian King35a39692006-09-25 12:39:20 -05005962 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5963 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5964 ioadl_flags = IPR_IOADL_FLAGS_READ;
5965 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5966 ioarcb->read_ioadl_len =
5967 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5968 }
5969
Tejun Heoff2aeb12007-12-05 16:43:11 +09005970 for_each_sg(qc->sg, sg, qc->n_elem, si) {
Brian King35a39692006-09-25 12:39:20 -05005971 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5972 ioadl->address = cpu_to_be32(sg_dma_address(sg));
Jeff Garzik3be6cbd2007-10-18 16:21:18 -04005973
5974 last_ioadl = ioadl;
5975 ioadl++;
Brian King35a39692006-09-25 12:39:20 -05005976 }
Jeff Garzik3be6cbd2007-10-18 16:21:18 -04005977
5978 if (likely(last_ioadl))
5979 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
Brian King35a39692006-09-25 12:39:20 -05005980}
5981
5982/**
5983 * ipr_qc_issue - Issue a SATA qc to a device
5984 * @qc: queued command
5985 *
5986 * Return value:
5987 * 0 if success
5988 **/
5989static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5990{
5991 struct ata_port *ap = qc->ap;
5992 struct ipr_sata_port *sata_port = ap->private_data;
5993 struct ipr_resource_entry *res = sata_port->res;
5994 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5995 struct ipr_cmnd *ipr_cmd;
5996 struct ipr_ioarcb *ioarcb;
5997 struct ipr_ioarcb_ata_regs *regs;
5998
5999 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
Brian King0feeed82007-03-29 12:43:43 -05006000 return AC_ERR_SYSTEM;
Brian King35a39692006-09-25 12:39:20 -05006001
6002 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6003 ioarcb = &ipr_cmd->ioarcb;
Brian King35a39692006-09-25 12:39:20 -05006004
Wayne Boyera32c0552010-02-19 13:23:36 -08006005 if (ioa_cfg->sis64) {
6006 regs = &ipr_cmd->i.ata_ioadl.regs;
6007 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6008 } else
6009 regs = &ioarcb->u.add_data.u.regs;
6010
6011 memset(regs, 0, sizeof(*regs));
6012 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
Brian King35a39692006-09-25 12:39:20 -05006013
6014 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6015 ipr_cmd->qc = qc;
6016 ipr_cmd->done = ipr_sata_done;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006017 ipr_cmd->ioarcb.res_handle = res->res_handle;
Brian King35a39692006-09-25 12:39:20 -05006018 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6019 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6020 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
James Bottomleydde20202008-02-19 11:36:56 +01006021 ipr_cmd->dma_use_sg = qc->n_elem;
Brian King35a39692006-09-25 12:39:20 -05006022
Wayne Boyera32c0552010-02-19 13:23:36 -08006023 if (ioa_cfg->sis64)
6024 ipr_build_ata_ioadl64(ipr_cmd, qc);
6025 else
6026 ipr_build_ata_ioadl(ipr_cmd, qc);
6027
Brian King35a39692006-09-25 12:39:20 -05006028 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6029 ipr_copy_sata_tf(regs, &qc->tf);
6030 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006031 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
Brian King35a39692006-09-25 12:39:20 -05006032
6033 switch (qc->tf.protocol) {
6034 case ATA_PROT_NODATA:
6035 case ATA_PROT_PIO:
6036 break;
6037
6038 case ATA_PROT_DMA:
6039 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6040 break;
6041
Tejun Heo0dc36882007-12-18 16:34:43 -05006042 case ATAPI_PROT_PIO:
6043 case ATAPI_PROT_NODATA:
Brian King35a39692006-09-25 12:39:20 -05006044 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6045 break;
6046
Tejun Heo0dc36882007-12-18 16:34:43 -05006047 case ATAPI_PROT_DMA:
Brian King35a39692006-09-25 12:39:20 -05006048 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6049 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6050 break;
6051
6052 default:
6053 WARN_ON(1);
Brian King0feeed82007-03-29 12:43:43 -05006054 return AC_ERR_INVALID;
Brian King35a39692006-09-25 12:39:20 -05006055 }
6056
6057 mb();
Wayne Boyera32c0552010-02-19 13:23:36 -08006058
6059 ipr_send_command(ipr_cmd);
6060
Brian King35a39692006-09-25 12:39:20 -05006061 return 0;
6062}
6063
6064/**
Tejun Heo4c9bf4e2008-04-07 22:47:20 +09006065 * ipr_qc_fill_rtf - Read result TF
6066 * @qc: ATA queued command
6067 *
6068 * Return value:
6069 * true
6070 **/
6071static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6072{
6073 struct ipr_sata_port *sata_port = qc->ap->private_data;
6074 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6075 struct ata_taskfile *tf = &qc->result_tf;
6076
6077 tf->feature = g->error;
6078 tf->nsect = g->nsect;
6079 tf->lbal = g->lbal;
6080 tf->lbam = g->lbam;
6081 tf->lbah = g->lbah;
6082 tf->device = g->device;
6083 tf->command = g->status;
6084 tf->hob_nsect = g->hob_nsect;
6085 tf->hob_lbal = g->hob_lbal;
6086 tf->hob_lbam = g->hob_lbam;
6087 tf->hob_lbah = g->hob_lbah;
6088 tf->ctl = g->alt_status;
6089
6090 return true;
6091}
6092
Brian King35a39692006-09-25 12:39:20 -05006093static struct ata_port_operations ipr_sata_ops = {
Brian King35a39692006-09-25 12:39:20 -05006094 .phy_reset = ipr_ata_phy_reset,
Tejun Heoa1efdab2008-03-25 12:22:50 +09006095 .hardreset = ipr_sata_reset,
Brian King35a39692006-09-25 12:39:20 -05006096 .post_internal_cmd = ipr_ata_post_internal,
Brian King35a39692006-09-25 12:39:20 -05006097 .qc_prep = ata_noop_qc_prep,
6098 .qc_issue = ipr_qc_issue,
Tejun Heo4c9bf4e2008-04-07 22:47:20 +09006099 .qc_fill_rtf = ipr_qc_fill_rtf,
Brian King35a39692006-09-25 12:39:20 -05006100 .port_start = ata_sas_port_start,
6101 .port_stop = ata_sas_port_stop
6102};
6103
6104static struct ata_port_info sata_port_info = {
6105 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
6106 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
6107 .pio_mask = 0x10, /* pio4 */
6108 .mwdma_mask = 0x07,
6109 .udma_mask = 0x7f, /* udma0-6 */
6110 .port_ops = &ipr_sata_ops
6111};
6112
Linus Torvalds1da177e2005-04-16 15:20:36 -07006113#ifdef CONFIG_PPC_PSERIES
6114static const u16 ipr_blocked_processors[] = {
6115 PV_NORTHSTAR,
6116 PV_PULSAR,
6117 PV_POWER4,
6118 PV_ICESTAR,
6119 PV_SSTAR,
6120 PV_POWER4p,
6121 PV_630,
6122 PV_630p
6123};
6124
6125/**
6126 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6127 * @ioa_cfg: ioa cfg struct
6128 *
6129 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6130 * certain pSeries hardware. This function determines if the given
6131 * adapter is in one of these confgurations or not.
6132 *
6133 * Return value:
6134 * 1 if adapter is not supported / 0 if adapter is supported
6135 **/
6136static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6137{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006138 int i;
6139
Auke Kok44c10132007-06-08 15:46:36 -07006140 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6141 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6142 if (__is_processor(ipr_blocked_processors[i]))
6143 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006144 }
6145 }
6146 return 0;
6147}
6148#else
6149#define ipr_invalid_adapter(ioa_cfg) 0
6150#endif
6151
6152/**
6153 * ipr_ioa_bringdown_done - IOA bring down completion.
6154 * @ipr_cmd: ipr command struct
6155 *
6156 * This function processes the completion of an adapter bring down.
6157 * It wakes any reset sleepers.
6158 *
6159 * Return value:
6160 * IPR_RC_JOB_RETURN
6161 **/
6162static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6163{
6164 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6165
6166 ENTER;
6167 ioa_cfg->in_reset_reload = 0;
6168 ioa_cfg->reset_retries = 0;
6169 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6170 wake_up_all(&ioa_cfg->reset_wait_q);
6171
6172 spin_unlock_irq(ioa_cfg->host->host_lock);
6173 scsi_unblock_requests(ioa_cfg->host);
6174 spin_lock_irq(ioa_cfg->host->host_lock);
6175 LEAVE;
6176
6177 return IPR_RC_JOB_RETURN;
6178}
6179
6180/**
6181 * ipr_ioa_reset_done - IOA reset completion.
6182 * @ipr_cmd: ipr command struct
6183 *
6184 * This function processes the completion of an adapter reset.
6185 * It schedules any necessary mid-layer add/removes and
6186 * wakes any reset sleepers.
6187 *
6188 * Return value:
6189 * IPR_RC_JOB_RETURN
6190 **/
6191static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6192{
6193 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6194 struct ipr_resource_entry *res;
6195 struct ipr_hostrcb *hostrcb, *temp;
6196 int i = 0;
6197
6198 ENTER;
6199 ioa_cfg->in_reset_reload = 0;
6200 ioa_cfg->allow_cmds = 1;
6201 ioa_cfg->reset_cmd = NULL;
brking@us.ibm.com3d1d0da2005-11-01 17:01:54 -06006202 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006203
6204 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6205 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6206 ipr_trace;
6207 break;
6208 }
6209 }
6210 schedule_work(&ioa_cfg->work_q);
6211
6212 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6213 list_del(&hostrcb->queue);
6214 if (i++ < IPR_NUM_LOG_HCAMS)
6215 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6216 else
6217 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6218 }
6219
Brian King6bb04172007-04-26 16:00:08 -05006220 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006221 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6222
6223 ioa_cfg->reset_retries = 0;
6224 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6225 wake_up_all(&ioa_cfg->reset_wait_q);
6226
Mark Nelson30237852008-12-10 12:23:20 +11006227 spin_unlock(ioa_cfg->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006228 scsi_unblock_requests(ioa_cfg->host);
Mark Nelson30237852008-12-10 12:23:20 +11006229 spin_lock(ioa_cfg->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006230
6231 if (!ioa_cfg->allow_cmds)
6232 scsi_block_requests(ioa_cfg->host);
6233
6234 LEAVE;
6235 return IPR_RC_JOB_RETURN;
6236}
6237
6238/**
6239 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6240 * @supported_dev: supported device struct
6241 * @vpids: vendor product id struct
6242 *
6243 * Return value:
6244 * none
6245 **/
6246static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6247 struct ipr_std_inq_vpids *vpids)
6248{
6249 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6250 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6251 supported_dev->num_records = 1;
6252 supported_dev->data_length =
6253 cpu_to_be16(sizeof(struct ipr_supported_device));
6254 supported_dev->reserved = 0;
6255}
6256
6257/**
6258 * ipr_set_supported_devs - Send Set Supported Devices for a device
6259 * @ipr_cmd: ipr command struct
6260 *
Wayne Boyera32c0552010-02-19 13:23:36 -08006261 * This function sends a Set Supported Devices to the adapter
Linus Torvalds1da177e2005-04-16 15:20:36 -07006262 *
6263 * Return value:
6264 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6265 **/
6266static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6267{
6268 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6269 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006270 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6271 struct ipr_resource_entry *res = ipr_cmd->u.res;
6272
6273 ipr_cmd->job_step = ipr_ioa_reset_done;
6274
6275 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
Brian Kinge4fbf442006-03-29 09:37:22 -06006276 if (!ipr_is_scsi_disk(res))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006277 continue;
6278
6279 ipr_cmd->u.res = res;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006280 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006281
6282 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6283 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6284 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6285
6286 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006287 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006288 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6289 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6290
Wayne Boyera32c0552010-02-19 13:23:36 -08006291 ipr_init_ioadl(ipr_cmd,
6292 ioa_cfg->vpd_cbs_dma +
6293 offsetof(struct ipr_misc_cbs, supp_dev),
6294 sizeof(struct ipr_supported_device),
6295 IPR_IOADL_FLAGS_WRITE_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006296
6297 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6298 IPR_SET_SUP_DEVICE_TIMEOUT);
6299
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006300 if (!ioa_cfg->sis64)
6301 ipr_cmd->job_step = ipr_set_supported_devs;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006302 return IPR_RC_JOB_RETURN;
6303 }
6304
6305 return IPR_RC_JOB_CONTINUE;
6306}
6307
6308/**
6309 * ipr_get_mode_page - Locate specified mode page
6310 * @mode_pages: mode page buffer
6311 * @page_code: page code to find
6312 * @len: minimum required length for mode page
6313 *
6314 * Return value:
6315 * pointer to mode page / NULL on failure
6316 **/
6317static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6318 u32 page_code, u32 len)
6319{
6320 struct ipr_mode_page_hdr *mode_hdr;
6321 u32 page_length;
6322 u32 length;
6323
6324 if (!mode_pages || (mode_pages->hdr.length == 0))
6325 return NULL;
6326
6327 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6328 mode_hdr = (struct ipr_mode_page_hdr *)
6329 (mode_pages->data + mode_pages->hdr.block_desc_len);
6330
6331 while (length) {
6332 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6333 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6334 return mode_hdr;
6335 break;
6336 } else {
6337 page_length = (sizeof(struct ipr_mode_page_hdr) +
6338 mode_hdr->page_length);
6339 length -= page_length;
6340 mode_hdr = (struct ipr_mode_page_hdr *)
6341 ((unsigned long)mode_hdr + page_length);
6342 }
6343 }
6344 return NULL;
6345}
6346
6347/**
6348 * ipr_check_term_power - Check for term power errors
6349 * @ioa_cfg: ioa config struct
6350 * @mode_pages: IOAFP mode pages buffer
6351 *
6352 * Check the IOAFP's mode page 28 for term power errors
6353 *
6354 * Return value:
6355 * nothing
6356 **/
6357static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6358 struct ipr_mode_pages *mode_pages)
6359{
6360 int i;
6361 int entry_length;
6362 struct ipr_dev_bus_entry *bus;
6363 struct ipr_mode_page28 *mode_page;
6364
6365 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6366 sizeof(struct ipr_mode_page28));
6367
6368 entry_length = mode_page->entry_length;
6369
6370 bus = mode_page->bus;
6371
6372 for (i = 0; i < mode_page->num_entries; i++) {
6373 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6374 dev_err(&ioa_cfg->pdev->dev,
6375 "Term power is absent on scsi bus %d\n",
6376 bus->res_addr.bus);
6377 }
6378
6379 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6380 }
6381}
6382
6383/**
6384 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6385 * @ioa_cfg: ioa config struct
6386 *
6387 * Looks through the config table checking for SES devices. If
6388 * the SES device is in the SES table indicating a maximum SCSI
6389 * bus speed, the speed is limited for the bus.
6390 *
6391 * Return value:
6392 * none
6393 **/
6394static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6395{
6396 u32 max_xfer_rate;
6397 int i;
6398
6399 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6400 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6401 ioa_cfg->bus_attr[i].bus_width);
6402
6403 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6404 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6405 }
6406}
6407
6408/**
6409 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6410 * @ioa_cfg: ioa config struct
6411 * @mode_pages: mode page 28 buffer
6412 *
6413 * Updates mode page 28 based on driver configuration
6414 *
6415 * Return value:
6416 * none
6417 **/
6418static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6419 struct ipr_mode_pages *mode_pages)
6420{
6421 int i, entry_length;
6422 struct ipr_dev_bus_entry *bus;
6423 struct ipr_bus_attributes *bus_attr;
6424 struct ipr_mode_page28 *mode_page;
6425
6426 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6427 sizeof(struct ipr_mode_page28));
6428
6429 entry_length = mode_page->entry_length;
6430
6431 /* Loop for each device bus entry */
6432 for (i = 0, bus = mode_page->bus;
6433 i < mode_page->num_entries;
6434 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6435 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6436 dev_err(&ioa_cfg->pdev->dev,
6437 "Invalid resource address reported: 0x%08X\n",
6438 IPR_GET_PHYS_LOC(bus->res_addr));
6439 continue;
6440 }
6441
6442 bus_attr = &ioa_cfg->bus_attr[i];
6443 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6444 bus->bus_width = bus_attr->bus_width;
6445 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6446 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6447 if (bus_attr->qas_enabled)
6448 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6449 else
6450 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6451 }
6452}
6453
6454/**
6455 * ipr_build_mode_select - Build a mode select command
6456 * @ipr_cmd: ipr command struct
6457 * @res_handle: resource handle to send command to
6458 * @parm: Byte 2 of Mode Sense command
6459 * @dma_addr: DMA buffer address
6460 * @xfer_len: data transfer length
6461 *
6462 * Return value:
6463 * none
6464 **/
6465static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
Wayne Boyera32c0552010-02-19 13:23:36 -08006466 __be32 res_handle, u8 parm,
6467 dma_addr_t dma_addr, u8 xfer_len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006468{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006469 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6470
6471 ioarcb->res_handle = res_handle;
6472 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6473 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6474 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6475 ioarcb->cmd_pkt.cdb[1] = parm;
6476 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6477
Wayne Boyera32c0552010-02-19 13:23:36 -08006478 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006479}
6480
6481/**
6482 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6483 * @ipr_cmd: ipr command struct
6484 *
6485 * This function sets up the SCSI bus attributes and sends
6486 * a Mode Select for Page 28 to activate them.
6487 *
6488 * Return value:
6489 * IPR_RC_JOB_RETURN
6490 **/
6491static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6492{
6493 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6494 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6495 int length;
6496
6497 ENTER;
Brian King47338042006-02-08 20:57:42 -06006498 ipr_scsi_bus_speed_limit(ioa_cfg);
6499 ipr_check_term_power(ioa_cfg, mode_pages);
6500 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6501 length = mode_pages->hdr.length + 1;
6502 mode_pages->hdr.length = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006503
6504 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6505 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6506 length);
6507
Wayne Boyerf72919e2010-02-19 13:24:21 -08006508 ipr_cmd->job_step = ipr_set_supported_devs;
6509 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6510 struct ipr_resource_entry, queue);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006511 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6512
6513 LEAVE;
6514 return IPR_RC_JOB_RETURN;
6515}
6516
6517/**
6518 * ipr_build_mode_sense - Builds a mode sense command
6519 * @ipr_cmd: ipr command struct
6520 * @res: resource entry struct
6521 * @parm: Byte 2 of mode sense command
6522 * @dma_addr: DMA address of mode sense buffer
6523 * @xfer_len: Size of DMA buffer
6524 *
6525 * Return value:
6526 * none
6527 **/
6528static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6529 __be32 res_handle,
Wayne Boyera32c0552010-02-19 13:23:36 -08006530 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006531{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006532 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6533
6534 ioarcb->res_handle = res_handle;
6535 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6536 ioarcb->cmd_pkt.cdb[2] = parm;
6537 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6538 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6539
Wayne Boyera32c0552010-02-19 13:23:36 -08006540 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006541}
6542
6543/**
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006544 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6545 * @ipr_cmd: ipr command struct
6546 *
6547 * This function handles the failure of an IOA bringup command.
6548 *
6549 * Return value:
6550 * IPR_RC_JOB_RETURN
6551 **/
6552static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6553{
6554 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyer96d21f02010-05-10 09:13:27 -07006555 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006556
6557 dev_err(&ioa_cfg->pdev->dev,
6558 "0x%02X failed with IOASC: 0x%08X\n",
6559 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6560
6561 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6562 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6563 return IPR_RC_JOB_RETURN;
6564}
6565
6566/**
6567 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6568 * @ipr_cmd: ipr command struct
6569 *
6570 * This function handles the failure of a Mode Sense to the IOAFP.
6571 * Some adapters do not handle all mode pages.
6572 *
6573 * Return value:
6574 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6575 **/
6576static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6577{
Wayne Boyerf72919e2010-02-19 13:24:21 -08006578 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyer96d21f02010-05-10 09:13:27 -07006579 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006580
6581 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
Wayne Boyerf72919e2010-02-19 13:24:21 -08006582 ipr_cmd->job_step = ipr_set_supported_devs;
6583 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6584 struct ipr_resource_entry, queue);
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006585 return IPR_RC_JOB_CONTINUE;
6586 }
6587
6588 return ipr_reset_cmd_failed(ipr_cmd);
6589}
6590
6591/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006592 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6593 * @ipr_cmd: ipr command struct
6594 *
6595 * This function send a Page 28 mode sense to the IOA to
6596 * retrieve SCSI bus attributes.
6597 *
6598 * Return value:
6599 * IPR_RC_JOB_RETURN
6600 **/
6601static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6602{
6603 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6604
6605 ENTER;
6606 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6607 0x28, ioa_cfg->vpd_cbs_dma +
6608 offsetof(struct ipr_misc_cbs, mode_pages),
6609 sizeof(struct ipr_mode_pages));
6610
6611 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006612 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006613
6614 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6615
6616 LEAVE;
6617 return IPR_RC_JOB_RETURN;
6618}
6619
6620/**
Brian Kingac09c342007-04-26 16:00:16 -05006621 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6622 * @ipr_cmd: ipr command struct
6623 *
6624 * This function enables dual IOA RAID support if possible.
6625 *
6626 * Return value:
6627 * IPR_RC_JOB_RETURN
6628 **/
6629static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6630{
6631 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6632 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6633 struct ipr_mode_page24 *mode_page;
6634 int length;
6635
6636 ENTER;
6637 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6638 sizeof(struct ipr_mode_page24));
6639
6640 if (mode_page)
6641 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6642
6643 length = mode_pages->hdr.length + 1;
6644 mode_pages->hdr.length = 0;
6645
6646 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6647 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6648 length);
6649
6650 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6651 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6652
6653 LEAVE;
6654 return IPR_RC_JOB_RETURN;
6655}
6656
6657/**
6658 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6659 * @ipr_cmd: ipr command struct
6660 *
6661 * This function handles the failure of a Mode Sense to the IOAFP.
6662 * Some adapters do not handle all mode pages.
6663 *
6664 * Return value:
6665 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6666 **/
6667static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6668{
Wayne Boyer96d21f02010-05-10 09:13:27 -07006669 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Brian Kingac09c342007-04-26 16:00:16 -05006670
6671 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6672 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6673 return IPR_RC_JOB_CONTINUE;
6674 }
6675
6676 return ipr_reset_cmd_failed(ipr_cmd);
6677}
6678
6679/**
6680 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6681 * @ipr_cmd: ipr command struct
6682 *
6683 * This function send a mode sense to the IOA to retrieve
6684 * the IOA Advanced Function Control mode page.
6685 *
6686 * Return value:
6687 * IPR_RC_JOB_RETURN
6688 **/
6689static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6690{
6691 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6692
6693 ENTER;
6694 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6695 0x24, ioa_cfg->vpd_cbs_dma +
6696 offsetof(struct ipr_misc_cbs, mode_pages),
6697 sizeof(struct ipr_mode_pages));
6698
6699 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6700 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6701
6702 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6703
6704 LEAVE;
6705 return IPR_RC_JOB_RETURN;
6706}
6707
6708/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006709 * ipr_init_res_table - Initialize the resource table
6710 * @ipr_cmd: ipr command struct
6711 *
6712 * This function looks through the existing resource table, comparing
6713 * it with the config table. This function will take care of old/new
6714 * devices and schedule adding/removing them from the mid-layer
6715 * as appropriate.
6716 *
6717 * Return value:
6718 * IPR_RC_JOB_CONTINUE
6719 **/
6720static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6721{
6722 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6723 struct ipr_resource_entry *res, *temp;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006724 struct ipr_config_table_entry_wrapper cfgtew;
6725 int entries, found, flag, i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006726 LIST_HEAD(old_res);
6727
6728 ENTER;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006729 if (ioa_cfg->sis64)
6730 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6731 else
6732 flag = ioa_cfg->u.cfg_table->hdr.flags;
6733
6734 if (flag & IPR_UCODE_DOWNLOAD_REQ)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006735 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6736
6737 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6738 list_move_tail(&res->queue, &old_res);
6739
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006740 if (ioa_cfg->sis64)
Wayne Boyer438b0332010-05-10 09:13:00 -07006741 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006742 else
6743 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6744
6745 for (i = 0; i < entries; i++) {
6746 if (ioa_cfg->sis64)
6747 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6748 else
6749 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
Linus Torvalds1da177e2005-04-16 15:20:36 -07006750 found = 0;
6751
6752 list_for_each_entry_safe(res, temp, &old_res, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006753 if (ipr_is_same_device(res, &cfgtew)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006754 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6755 found = 1;
6756 break;
6757 }
6758 }
6759
6760 if (!found) {
6761 if (list_empty(&ioa_cfg->free_res_q)) {
6762 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6763 break;
6764 }
6765
6766 found = 1;
6767 res = list_entry(ioa_cfg->free_res_q.next,
6768 struct ipr_resource_entry, queue);
6769 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006770 ipr_init_res_entry(res, &cfgtew);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006771 res->add_to_ml = 1;
Wayne Boyer56115592010-06-10 14:46:34 -07006772 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6773 res->sdev->allow_restart = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006774
6775 if (found)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006776 ipr_update_res_entry(res, &cfgtew);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006777 }
6778
6779 list_for_each_entry_safe(res, temp, &old_res, queue) {
6780 if (res->sdev) {
6781 res->del_from_ml = 1;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006782 res->res_handle = IPR_INVALID_RES_HANDLE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006783 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006784 }
6785 }
6786
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006787 list_for_each_entry_safe(res, temp, &old_res, queue) {
6788 ipr_clear_res_target(res);
6789 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6790 }
6791
Brian Kingac09c342007-04-26 16:00:16 -05006792 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6793 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6794 else
6795 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006796
6797 LEAVE;
6798 return IPR_RC_JOB_CONTINUE;
6799}
6800
6801/**
6802 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6803 * @ipr_cmd: ipr command struct
6804 *
6805 * This function sends a Query IOA Configuration command
6806 * to the adapter to retrieve the IOA configuration table.
6807 *
6808 * Return value:
6809 * IPR_RC_JOB_RETURN
6810 **/
6811static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6812{
6813 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6814 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006815 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
Brian Kingac09c342007-04-26 16:00:16 -05006816 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006817
6818 ENTER;
Brian Kingac09c342007-04-26 16:00:16 -05006819 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6820 ioa_cfg->dual_raid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006821 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6822 ucode_vpd->major_release, ucode_vpd->card_type,
6823 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6824 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6825 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6826
6827 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
Wayne Boyer438b0332010-05-10 09:13:00 -07006828 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006829 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6830 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006831
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006832 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
Wayne Boyera32c0552010-02-19 13:23:36 -08006833 IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006834
6835 ipr_cmd->job_step = ipr_init_res_table;
6836
6837 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6838
6839 LEAVE;
6840 return IPR_RC_JOB_RETURN;
6841}
6842
6843/**
6844 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6845 * @ipr_cmd: ipr command struct
6846 *
6847 * This utility function sends an inquiry to the adapter.
6848 *
6849 * Return value:
6850 * none
6851 **/
6852static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
Wayne Boyera32c0552010-02-19 13:23:36 -08006853 dma_addr_t dma_addr, u8 xfer_len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006854{
6855 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006856
6857 ENTER;
6858 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6859 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6860
6861 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6862 ioarcb->cmd_pkt.cdb[1] = flags;
6863 ioarcb->cmd_pkt.cdb[2] = page;
6864 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6865
Wayne Boyera32c0552010-02-19 13:23:36 -08006866 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006867
6868 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6869 LEAVE;
6870}
6871
6872/**
brking@us.ibm.com62275042005-11-01 17:01:14 -06006873 * ipr_inquiry_page_supported - Is the given inquiry page supported
6874 * @page0: inquiry page 0 buffer
6875 * @page: page code.
6876 *
6877 * This function determines if the specified inquiry page is supported.
6878 *
6879 * Return value:
6880 * 1 if page is supported / 0 if not
6881 **/
6882static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6883{
6884 int i;
6885
6886 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6887 if (page0->page[i] == page)
6888 return 1;
6889
6890 return 0;
6891}
6892
6893/**
Brian Kingac09c342007-04-26 16:00:16 -05006894 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6895 * @ipr_cmd: ipr command struct
6896 *
6897 * This function sends a Page 0xD0 inquiry to the adapter
6898 * to retrieve adapter capabilities.
6899 *
6900 * Return value:
6901 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6902 **/
6903static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6904{
6905 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6906 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6907 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6908
6909 ENTER;
6910 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6911 memset(cap, 0, sizeof(*cap));
6912
6913 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6914 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6915 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6916 sizeof(struct ipr_inquiry_cap));
6917 return IPR_RC_JOB_RETURN;
6918 }
6919
6920 LEAVE;
6921 return IPR_RC_JOB_CONTINUE;
6922}
6923
6924/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006925 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6926 * @ipr_cmd: ipr command struct
6927 *
6928 * This function sends a Page 3 inquiry to the adapter
6929 * to retrieve software VPD information.
6930 *
6931 * Return value:
6932 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6933 **/
6934static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6935{
6936 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
brking@us.ibm.com62275042005-11-01 17:01:14 -06006937
6938 ENTER;
6939
Brian Kingac09c342007-04-26 16:00:16 -05006940 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
brking@us.ibm.com62275042005-11-01 17:01:14 -06006941
6942 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6943 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6944 sizeof(struct ipr_inquiry_page3));
6945
6946 LEAVE;
6947 return IPR_RC_JOB_RETURN;
6948}
6949
6950/**
6951 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6952 * @ipr_cmd: ipr command struct
6953 *
6954 * This function sends a Page 0 inquiry to the adapter
6955 * to retrieve supported inquiry pages.
6956 *
6957 * Return value:
6958 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6959 **/
6960static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6961{
6962 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006963 char type[5];
6964
6965 ENTER;
6966
6967 /* Grab the type out of the VPD and store it away */
6968 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6969 type[4] = '\0';
6970 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6971
brking@us.ibm.com62275042005-11-01 17:01:14 -06006972 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006973
brking@us.ibm.com62275042005-11-01 17:01:14 -06006974 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6975 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6976 sizeof(struct ipr_inquiry_page0));
Linus Torvalds1da177e2005-04-16 15:20:36 -07006977
6978 LEAVE;
6979 return IPR_RC_JOB_RETURN;
6980}
6981
6982/**
6983 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6984 * @ipr_cmd: ipr command struct
6985 *
6986 * This function sends a standard inquiry to the adapter.
6987 *
6988 * Return value:
6989 * IPR_RC_JOB_RETURN
6990 **/
6991static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6992{
6993 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6994
6995 ENTER;
brking@us.ibm.com62275042005-11-01 17:01:14 -06006996 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006997
6998 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6999 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7000 sizeof(struct ipr_ioa_vpd));
7001
7002 LEAVE;
7003 return IPR_RC_JOB_RETURN;
7004}
7005
7006/**
Wayne Boyer214777b2010-02-19 13:24:26 -08007007 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007008 * @ipr_cmd: ipr command struct
7009 *
7010 * This function send an Identify Host Request Response Queue
7011 * command to establish the HRRQ with the adapter.
7012 *
7013 * Return value:
7014 * IPR_RC_JOB_RETURN
7015 **/
Wayne Boyer214777b2010-02-19 13:24:26 -08007016static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007017{
7018 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7019 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7020
7021 ENTER;
7022 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7023
7024 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7025 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7026
7027 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
Wayne Boyer214777b2010-02-19 13:24:26 -08007028 if (ioa_cfg->sis64)
7029 ioarcb->cmd_pkt.cdb[1] = 0x1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007030 ioarcb->cmd_pkt.cdb[2] =
Wayne Boyer214777b2010-02-19 13:24:26 -08007031 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007032 ioarcb->cmd_pkt.cdb[3] =
Wayne Boyer214777b2010-02-19 13:24:26 -08007033 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007034 ioarcb->cmd_pkt.cdb[4] =
Wayne Boyer214777b2010-02-19 13:24:26 -08007035 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007036 ioarcb->cmd_pkt.cdb[5] =
Wayne Boyer214777b2010-02-19 13:24:26 -08007037 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007038 ioarcb->cmd_pkt.cdb[7] =
7039 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7040 ioarcb->cmd_pkt.cdb[8] =
7041 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7042
Wayne Boyer214777b2010-02-19 13:24:26 -08007043 if (ioa_cfg->sis64) {
7044 ioarcb->cmd_pkt.cdb[10] =
7045 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7046 ioarcb->cmd_pkt.cdb[11] =
7047 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7048 ioarcb->cmd_pkt.cdb[12] =
7049 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7050 ioarcb->cmd_pkt.cdb[13] =
7051 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7052 }
7053
Linus Torvalds1da177e2005-04-16 15:20:36 -07007054 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7055
7056 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7057
7058 LEAVE;
7059 return IPR_RC_JOB_RETURN;
7060}
7061
7062/**
7063 * ipr_reset_timer_done - Adapter reset timer function
7064 * @ipr_cmd: ipr command struct
7065 *
7066 * Description: This function is used in adapter reset processing
7067 * for timing events. If the reset_cmd pointer in the IOA
7068 * config struct is not this adapter's we are doing nested
7069 * resets and fail_all_ops will take care of freeing the
7070 * command block.
7071 *
7072 * Return value:
7073 * none
7074 **/
7075static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7076{
7077 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7078 unsigned long lock_flags = 0;
7079
7080 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7081
7082 if (ioa_cfg->reset_cmd == ipr_cmd) {
7083 list_del(&ipr_cmd->queue);
7084 ipr_cmd->done(ipr_cmd);
7085 }
7086
7087 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7088}
7089
7090/**
7091 * ipr_reset_start_timer - Start a timer for adapter reset job
7092 * @ipr_cmd: ipr command struct
7093 * @timeout: timeout value
7094 *
7095 * Description: This function is used in adapter reset processing
7096 * for timing events. If the reset_cmd pointer in the IOA
7097 * config struct is not this adapter's we are doing nested
7098 * resets and fail_all_ops will take care of freeing the
7099 * command block.
7100 *
7101 * Return value:
7102 * none
7103 **/
7104static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7105 unsigned long timeout)
7106{
7107 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7108 ipr_cmd->done = ipr_reset_ioa_job;
7109
7110 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7111 ipr_cmd->timer.expires = jiffies + timeout;
7112 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7113 add_timer(&ipr_cmd->timer);
7114}
7115
7116/**
7117 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7118 * @ioa_cfg: ioa cfg struct
7119 *
7120 * Return value:
7121 * nothing
7122 **/
7123static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7124{
7125 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7126
7127 /* Initialize Host RRQ pointers */
7128 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7129 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7130 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7131 ioa_cfg->toggle_bit = 1;
7132
7133 /* Zero out config table */
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08007134 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007135}
7136
7137/**
Wayne Boyer214777b2010-02-19 13:24:26 -08007138 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7139 * @ipr_cmd: ipr command struct
7140 *
7141 * Return value:
7142 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7143 **/
7144static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7145{
7146 unsigned long stage, stage_time;
7147 u32 feedback;
7148 volatile u32 int_reg;
7149 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7150 u64 maskval = 0;
7151
7152 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7153 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7154 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7155
7156 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7157
7158 /* sanity check the stage_time value */
Wayne Boyer438b0332010-05-10 09:13:00 -07007159 if (stage_time == 0)
7160 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7161 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
Wayne Boyer214777b2010-02-19 13:24:26 -08007162 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7163 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7164 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7165
7166 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7167 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7168 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7169 stage_time = ioa_cfg->transop_timeout;
7170 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7171 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7172 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7173 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7174 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7175 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7176 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7177 return IPR_RC_JOB_CONTINUE;
7178 }
7179
7180 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7181 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7182 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7183 ipr_cmd->done = ipr_reset_ioa_job;
7184 add_timer(&ipr_cmd->timer);
7185 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7186
7187 return IPR_RC_JOB_RETURN;
7188}
7189
7190/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007191 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7192 * @ipr_cmd: ipr command struct
7193 *
7194 * This function reinitializes some control blocks and
7195 * enables destructive diagnostics on the adapter.
7196 *
7197 * Return value:
7198 * IPR_RC_JOB_RETURN
7199 **/
7200static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7201{
7202 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7203 volatile u32 int_reg;
Wayne Boyer7be96902010-05-10 09:14:07 -07007204 volatile u64 maskval;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007205
7206 ENTER;
Wayne Boyer214777b2010-02-19 13:24:26 -08007207 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007208 ipr_init_ioa_mem(ioa_cfg);
7209
7210 ioa_cfg->allow_interrupts = 1;
Wayne Boyer8701f182010-06-04 10:26:50 -07007211 if (ioa_cfg->sis64) {
7212 /* Set the adapter to the correct endian mode. */
7213 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7214 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7215 }
7216
Wayne Boyer7be96902010-05-10 09:14:07 -07007217 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007218
7219 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7220 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
Wayne Boyer214777b2010-02-19 13:24:26 -08007221 ioa_cfg->regs.clr_interrupt_mask_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007222 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7223 return IPR_RC_JOB_CONTINUE;
7224 }
7225
7226 /* Enable destructive diagnostics on IOA */
Wayne Boyer214777b2010-02-19 13:24:26 -08007227 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007228
Wayne Boyer7be96902010-05-10 09:14:07 -07007229 if (ioa_cfg->sis64) {
7230 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7231 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7232 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7233 } else
7234 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
Wayne Boyer214777b2010-02-19 13:24:26 -08007235
Linus Torvalds1da177e2005-04-16 15:20:36 -07007236 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7237
7238 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7239
Wayne Boyer214777b2010-02-19 13:24:26 -08007240 if (ioa_cfg->sis64) {
7241 ipr_cmd->job_step = ipr_reset_next_stage;
7242 return IPR_RC_JOB_CONTINUE;
7243 }
7244
Linus Torvalds1da177e2005-04-16 15:20:36 -07007245 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
Brian King5469cb52007-03-29 12:42:40 -05007246 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007247 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7248 ipr_cmd->done = ipr_reset_ioa_job;
7249 add_timer(&ipr_cmd->timer);
7250 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7251
7252 LEAVE;
7253 return IPR_RC_JOB_RETURN;
7254}
7255
7256/**
7257 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7258 * @ipr_cmd: ipr command struct
7259 *
7260 * This function is invoked when an adapter dump has run out
7261 * of processing time.
7262 *
7263 * Return value:
7264 * IPR_RC_JOB_CONTINUE
7265 **/
7266static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7267{
7268 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7269
7270 if (ioa_cfg->sdt_state == GET_DUMP)
7271 ioa_cfg->sdt_state = ABORT_DUMP;
7272
7273 ipr_cmd->job_step = ipr_reset_alert;
7274
7275 return IPR_RC_JOB_CONTINUE;
7276}
7277
7278/**
7279 * ipr_unit_check_no_data - Log a unit check/no data error log
7280 * @ioa_cfg: ioa config struct
7281 *
7282 * Logs an error indicating the adapter unit checked, but for some
7283 * reason, we were unable to fetch the unit check buffer.
7284 *
7285 * Return value:
7286 * nothing
7287 **/
7288static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7289{
7290 ioa_cfg->errors_logged++;
7291 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7292}
7293
7294/**
7295 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7296 * @ioa_cfg: ioa config struct
7297 *
7298 * Fetches the unit check buffer from the adapter by clocking the data
7299 * through the mailbox register.
7300 *
7301 * Return value:
7302 * nothing
7303 **/
7304static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7305{
7306 unsigned long mailbox;
7307 struct ipr_hostrcb *hostrcb;
7308 struct ipr_uc_sdt sdt;
7309 int rc, length;
Brian King65f56472007-04-26 16:00:12 -05007310 u32 ioasc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007311
7312 mailbox = readl(ioa_cfg->ioa_mailbox);
7313
Wayne Boyerdcbad002010-02-19 13:24:14 -08007314 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007315 ipr_unit_check_no_data(ioa_cfg);
7316 return;
7317 }
7318
7319 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7320 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7321 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7322
Wayne Boyerdcbad002010-02-19 13:24:14 -08007323 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7324 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7325 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007326 ipr_unit_check_no_data(ioa_cfg);
7327 return;
7328 }
7329
7330 /* Find length of the first sdt entry (UC buffer) */
Wayne Boyerdcbad002010-02-19 13:24:14 -08007331 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7332 length = be32_to_cpu(sdt.entry[0].end_token);
7333 else
7334 length = (be32_to_cpu(sdt.entry[0].end_token) -
7335 be32_to_cpu(sdt.entry[0].start_token)) &
7336 IPR_FMT2_MBX_ADDR_MASK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007337
7338 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7339 struct ipr_hostrcb, queue);
7340 list_del(&hostrcb->queue);
7341 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7342
7343 rc = ipr_get_ldump_data_section(ioa_cfg,
Wayne Boyerdcbad002010-02-19 13:24:14 -08007344 be32_to_cpu(sdt.entry[0].start_token),
Linus Torvalds1da177e2005-04-16 15:20:36 -07007345 (__be32 *)&hostrcb->hcam,
7346 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7347
Brian King65f56472007-04-26 16:00:12 -05007348 if (!rc) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007349 ipr_handle_log_data(ioa_cfg, hostrcb);
Wayne Boyer4565e372010-02-19 13:24:07 -08007350 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
Brian King65f56472007-04-26 16:00:12 -05007351 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7352 ioa_cfg->sdt_state == GET_DUMP)
7353 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7354 } else
Linus Torvalds1da177e2005-04-16 15:20:36 -07007355 ipr_unit_check_no_data(ioa_cfg);
7356
7357 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7358}
7359
7360/**
7361 * ipr_reset_restore_cfg_space - Restore PCI config space.
7362 * @ipr_cmd: ipr command struct
7363 *
7364 * Description: This function restores the saved PCI config space of
7365 * the adapter, fails all outstanding ops back to the callers, and
7366 * fetches the dump/unit check if applicable to this reset.
7367 *
7368 * Return value:
7369 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7370 **/
7371static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7372{
7373 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyer8701f182010-06-04 10:26:50 -07007374 volatile u32 int_reg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007375 int rc;
7376
7377 ENTER;
Kleber Sacilotto de Souza99c965d2009-11-25 20:13:43 -02007378 ioa_cfg->pdev->state_saved = true;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007379 rc = pci_restore_state(ioa_cfg->pdev);
7380
7381 if (rc != PCIBIOS_SUCCESSFUL) {
Wayne Boyer96d21f02010-05-10 09:13:27 -07007382 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007383 return IPR_RC_JOB_CONTINUE;
7384 }
7385
7386 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
Wayne Boyer96d21f02010-05-10 09:13:27 -07007387 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007388 return IPR_RC_JOB_CONTINUE;
7389 }
7390
7391 ipr_fail_all_ops(ioa_cfg);
7392
Wayne Boyer8701f182010-06-04 10:26:50 -07007393 if (ioa_cfg->sis64) {
7394 /* Set the adapter to the correct endian mode. */
7395 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7396 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7397 }
7398
Linus Torvalds1da177e2005-04-16 15:20:36 -07007399 if (ioa_cfg->ioa_unit_checked) {
7400 ioa_cfg->ioa_unit_checked = 0;
7401 ipr_get_unit_check_buffer(ioa_cfg);
7402 ipr_cmd->job_step = ipr_reset_alert;
7403 ipr_reset_start_timer(ipr_cmd, 0);
7404 return IPR_RC_JOB_RETURN;
7405 }
7406
7407 if (ioa_cfg->in_ioa_bringdown) {
7408 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7409 } else {
7410 ipr_cmd->job_step = ipr_reset_enable_ioa;
7411
7412 if (GET_DUMP == ioa_cfg->sdt_state) {
7413 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7414 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7415 schedule_work(&ioa_cfg->work_q);
7416 return IPR_RC_JOB_RETURN;
7417 }
7418 }
7419
Wayne Boyer438b0332010-05-10 09:13:00 -07007420 LEAVE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007421 return IPR_RC_JOB_CONTINUE;
7422}
7423
7424/**
Brian Kinge619e1a2007-01-23 11:25:37 -06007425 * ipr_reset_bist_done - BIST has completed on the adapter.
7426 * @ipr_cmd: ipr command struct
7427 *
7428 * Description: Unblock config space and resume the reset process.
7429 *
7430 * Return value:
7431 * IPR_RC_JOB_CONTINUE
7432 **/
7433static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7434{
7435 ENTER;
7436 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7437 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7438 LEAVE;
7439 return IPR_RC_JOB_CONTINUE;
7440}
7441
7442/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007443 * ipr_reset_start_bist - Run BIST on the adapter.
7444 * @ipr_cmd: ipr command struct
7445 *
7446 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7447 *
7448 * Return value:
7449 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7450 **/
7451static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7452{
7453 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyercb237ef2010-06-17 11:51:40 -07007454 int rc = PCIBIOS_SUCCESSFUL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007455
7456 ENTER;
Brian Kingb30197d2005-09-27 01:21:56 -07007457 pci_block_user_cfg_access(ioa_cfg->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007458
Wayne Boyercb237ef2010-06-17 11:51:40 -07007459 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7460 writel(IPR_UPROCI_SIS64_START_BIST,
7461 ioa_cfg->regs.set_uproc_interrupt_reg32);
7462 else
7463 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7464
7465 if (rc == PCIBIOS_SUCCESSFUL) {
Brian Kinge619e1a2007-01-23 11:25:37 -06007466 ipr_cmd->job_step = ipr_reset_bist_done;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007467 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7468 rc = IPR_RC_JOB_RETURN;
Wayne Boyercb237ef2010-06-17 11:51:40 -07007469 } else {
7470 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7471 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7472 rc = IPR_RC_JOB_CONTINUE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007473 }
7474
7475 LEAVE;
7476 return rc;
7477}
7478
7479/**
Brian King463fc692007-05-07 17:09:05 -05007480 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7481 * @ipr_cmd: ipr command struct
7482 *
7483 * Description: This clears PCI reset to the adapter and delays two seconds.
7484 *
7485 * Return value:
7486 * IPR_RC_JOB_RETURN
7487 **/
7488static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7489{
7490 ENTER;
7491 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7492 ipr_cmd->job_step = ipr_reset_bist_done;
7493 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7494 LEAVE;
7495 return IPR_RC_JOB_RETURN;
7496}
7497
7498/**
7499 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7500 * @ipr_cmd: ipr command struct
7501 *
7502 * Description: This asserts PCI reset to the adapter.
7503 *
7504 * Return value:
7505 * IPR_RC_JOB_RETURN
7506 **/
7507static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7508{
7509 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7510 struct pci_dev *pdev = ioa_cfg->pdev;
7511
7512 ENTER;
7513 pci_block_user_cfg_access(pdev);
7514 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7515 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7516 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7517 LEAVE;
7518 return IPR_RC_JOB_RETURN;
7519}
7520
7521/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007522 * ipr_reset_allowed - Query whether or not IOA can be reset
7523 * @ioa_cfg: ioa config struct
7524 *
7525 * Return value:
7526 * 0 if reset not allowed / non-zero if reset is allowed
7527 **/
7528static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7529{
7530 volatile u32 temp_reg;
7531
7532 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7533 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7534}
7535
7536/**
7537 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7538 * @ipr_cmd: ipr command struct
7539 *
7540 * Description: This function waits for adapter permission to run BIST,
7541 * then runs BIST. If the adapter does not give permission after a
7542 * reasonable time, we will reset the adapter anyway. The impact of
7543 * resetting the adapter without warning the adapter is the risk of
7544 * losing the persistent error log on the adapter. If the adapter is
7545 * reset while it is writing to the flash on the adapter, the flash
7546 * segment will have bad ECC and be zeroed.
7547 *
7548 * Return value:
7549 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7550 **/
7551static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7552{
7553 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7554 int rc = IPR_RC_JOB_RETURN;
7555
7556 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7557 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7558 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7559 } else {
Brian King463fc692007-05-07 17:09:05 -05007560 ipr_cmd->job_step = ioa_cfg->reset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007561 rc = IPR_RC_JOB_CONTINUE;
7562 }
7563
7564 return rc;
7565}
7566
7567/**
Wayne Boyer8701f182010-06-04 10:26:50 -07007568 * ipr_reset_alert - Alert the adapter of a pending reset
Linus Torvalds1da177e2005-04-16 15:20:36 -07007569 * @ipr_cmd: ipr command struct
7570 *
7571 * Description: This function alerts the adapter that it will be reset.
7572 * If memory space is not currently enabled, proceed directly
7573 * to running BIST on the adapter. The timer must always be started
7574 * so we guarantee we do not run BIST from ipr_isr.
7575 *
7576 * Return value:
7577 * IPR_RC_JOB_RETURN
7578 **/
7579static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7580{
7581 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7582 u16 cmd_reg;
7583 int rc;
7584
7585 ENTER;
7586 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7587
7588 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7589 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
Wayne Boyer214777b2010-02-19 13:24:26 -08007590 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007591 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7592 } else {
Brian King463fc692007-05-07 17:09:05 -05007593 ipr_cmd->job_step = ioa_cfg->reset;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007594 }
7595
7596 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7597 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7598
7599 LEAVE;
7600 return IPR_RC_JOB_RETURN;
7601}
7602
7603/**
7604 * ipr_reset_ucode_download_done - Microcode download completion
7605 * @ipr_cmd: ipr command struct
7606 *
7607 * Description: This function unmaps the microcode download buffer.
7608 *
7609 * Return value:
7610 * IPR_RC_JOB_CONTINUE
7611 **/
7612static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7613{
7614 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7615 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7616
7617 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7618 sglist->num_sg, DMA_TO_DEVICE);
7619
7620 ipr_cmd->job_step = ipr_reset_alert;
7621 return IPR_RC_JOB_CONTINUE;
7622}
7623
7624/**
7625 * ipr_reset_ucode_download - Download microcode to the adapter
7626 * @ipr_cmd: ipr command struct
7627 *
7628 * Description: This function checks to see if it there is microcode
7629 * to download to the adapter. If there is, a download is performed.
7630 *
7631 * Return value:
7632 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7633 **/
7634static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7635{
7636 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7637 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7638
7639 ENTER;
7640 ipr_cmd->job_step = ipr_reset_alert;
7641
7642 if (!sglist)
7643 return IPR_RC_JOB_CONTINUE;
7644
7645 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7646 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7647 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7648 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7649 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7650 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7651 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7652
Wayne Boyera32c0552010-02-19 13:23:36 -08007653 if (ioa_cfg->sis64)
7654 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7655 else
7656 ipr_build_ucode_ioadl(ipr_cmd, sglist);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007657 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7658
7659 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7660 IPR_WRITE_BUFFER_TIMEOUT);
7661
7662 LEAVE;
7663 return IPR_RC_JOB_RETURN;
7664}
7665
7666/**
7667 * ipr_reset_shutdown_ioa - Shutdown the adapter
7668 * @ipr_cmd: ipr command struct
7669 *
7670 * Description: This function issues an adapter shutdown of the
7671 * specified type to the specified adapter as part of the
7672 * adapter reset job.
7673 *
7674 * Return value:
7675 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7676 **/
7677static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7678{
7679 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7680 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7681 unsigned long timeout;
7682 int rc = IPR_RC_JOB_CONTINUE;
7683
7684 ENTER;
7685 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7686 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7687 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7688 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7689 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7690
Brian Kingac09c342007-04-26 16:00:16 -05007691 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7692 timeout = IPR_SHUTDOWN_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007693 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7694 timeout = IPR_INTERNAL_TIMEOUT;
Brian Kingac09c342007-04-26 16:00:16 -05007695 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7696 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007697 else
Brian Kingac09c342007-04-26 16:00:16 -05007698 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007699
7700 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7701
7702 rc = IPR_RC_JOB_RETURN;
7703 ipr_cmd->job_step = ipr_reset_ucode_download;
7704 } else
7705 ipr_cmd->job_step = ipr_reset_alert;
7706
7707 LEAVE;
7708 return rc;
7709}
7710
7711/**
7712 * ipr_reset_ioa_job - Adapter reset job
7713 * @ipr_cmd: ipr command struct
7714 *
7715 * Description: This function is the job router for the adapter reset job.
7716 *
7717 * Return value:
7718 * none
7719 **/
7720static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7721{
7722 u32 rc, ioasc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007723 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7724
7725 do {
Wayne Boyer96d21f02010-05-10 09:13:27 -07007726 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007727
7728 if (ioa_cfg->reset_cmd != ipr_cmd) {
7729 /*
7730 * We are doing nested adapter resets and this is
7731 * not the current reset job.
7732 */
7733 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7734 return;
7735 }
7736
7737 if (IPR_IOASC_SENSE_KEY(ioasc)) {
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06007738 rc = ipr_cmd->job_step_failed(ipr_cmd);
7739 if (rc == IPR_RC_JOB_RETURN)
7740 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007741 }
7742
7743 ipr_reinit_ipr_cmnd(ipr_cmd);
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06007744 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007745 rc = ipr_cmd->job_step(ipr_cmd);
7746 } while(rc == IPR_RC_JOB_CONTINUE);
7747}
7748
7749/**
7750 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7751 * @ioa_cfg: ioa config struct
7752 * @job_step: first job step of reset job
7753 * @shutdown_type: shutdown type
7754 *
7755 * Description: This function will initiate the reset of the given adapter
7756 * starting at the selected job step.
7757 * If the caller needs to wait on the completion of the reset,
7758 * the caller must sleep on the reset_wait_q.
7759 *
7760 * Return value:
7761 * none
7762 **/
7763static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7764 int (*job_step) (struct ipr_cmnd *),
7765 enum ipr_shutdown_type shutdown_type)
7766{
7767 struct ipr_cmnd *ipr_cmd;
7768
7769 ioa_cfg->in_reset_reload = 1;
7770 ioa_cfg->allow_cmds = 0;
7771 scsi_block_requests(ioa_cfg->host);
7772
7773 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7774 ioa_cfg->reset_cmd = ipr_cmd;
7775 ipr_cmd->job_step = job_step;
7776 ipr_cmd->u.shutdown_type = shutdown_type;
7777
7778 ipr_reset_ioa_job(ipr_cmd);
7779}
7780
7781/**
7782 * ipr_initiate_ioa_reset - Initiate an adapter reset
7783 * @ioa_cfg: ioa config struct
7784 * @shutdown_type: shutdown type
7785 *
7786 * Description: This function will initiate the reset of the given adapter.
7787 * If the caller needs to wait on the completion of the reset,
7788 * the caller must sleep on the reset_wait_q.
7789 *
7790 * Return value:
7791 * none
7792 **/
7793static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7794 enum ipr_shutdown_type shutdown_type)
7795{
7796 if (ioa_cfg->ioa_is_dead)
7797 return;
7798
7799 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7800 ioa_cfg->sdt_state = ABORT_DUMP;
7801
7802 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7803 dev_err(&ioa_cfg->pdev->dev,
7804 "IOA taken offline - error recovery failed\n");
7805
7806 ioa_cfg->reset_retries = 0;
7807 ioa_cfg->ioa_is_dead = 1;
7808
7809 if (ioa_cfg->in_ioa_bringdown) {
7810 ioa_cfg->reset_cmd = NULL;
7811 ioa_cfg->in_reset_reload = 0;
7812 ipr_fail_all_ops(ioa_cfg);
7813 wake_up_all(&ioa_cfg->reset_wait_q);
7814
7815 spin_unlock_irq(ioa_cfg->host->host_lock);
7816 scsi_unblock_requests(ioa_cfg->host);
7817 spin_lock_irq(ioa_cfg->host->host_lock);
7818 return;
7819 } else {
7820 ioa_cfg->in_ioa_bringdown = 1;
7821 shutdown_type = IPR_SHUTDOWN_NONE;
7822 }
7823 }
7824
7825 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7826 shutdown_type);
7827}
7828
7829/**
Linas Vepstasf8a88b192006-02-03 16:52:42 -06007830 * ipr_reset_freeze - Hold off all I/O activity
7831 * @ipr_cmd: ipr command struct
7832 *
7833 * Description: If the PCI slot is frozen, hold off all I/O
7834 * activity; then, as soon as the slot is available again,
7835 * initiate an adapter reset.
7836 */
7837static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7838{
7839 /* Disallow new interrupts, avoid loop */
7840 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7841 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7842 ipr_cmd->done = ipr_reset_ioa_job;
7843 return IPR_RC_JOB_RETURN;
7844}
7845
7846/**
7847 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7848 * @pdev: PCI device struct
7849 *
7850 * Description: This routine is called to tell us that the PCI bus
7851 * is down. Can't do anything here, except put the device driver
7852 * into a holding pattern, waiting for the PCI bus to come back.
7853 */
7854static void ipr_pci_frozen(struct pci_dev *pdev)
7855{
7856 unsigned long flags = 0;
7857 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7858
7859 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7860 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
7861 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7862}
7863
7864/**
7865 * ipr_pci_slot_reset - Called when PCI slot has been reset.
7866 * @pdev: PCI device struct
7867 *
7868 * Description: This routine is called by the pci error recovery
7869 * code after the PCI slot has been reset, just before we
7870 * should resume normal operations.
7871 */
7872static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
7873{
7874 unsigned long flags = 0;
7875 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7876
7877 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
Brian King463fc692007-05-07 17:09:05 -05007878 if (ioa_cfg->needs_warm_reset)
7879 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7880 else
7881 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
7882 IPR_SHUTDOWN_NONE);
Linas Vepstasf8a88b192006-02-03 16:52:42 -06007883 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7884 return PCI_ERS_RESULT_RECOVERED;
7885}
7886
7887/**
7888 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
7889 * @pdev: PCI device struct
7890 *
7891 * Description: This routine is called when the PCI bus has
7892 * permanently failed.
7893 */
7894static void ipr_pci_perm_failure(struct pci_dev *pdev)
7895{
7896 unsigned long flags = 0;
7897 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7898
7899 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7900 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7901 ioa_cfg->sdt_state = ABORT_DUMP;
7902 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7903 ioa_cfg->in_ioa_bringdown = 1;
Kleber S. Souza6ff63892009-05-04 10:41:02 -03007904 ioa_cfg->allow_cmds = 0;
Linas Vepstasf8a88b192006-02-03 16:52:42 -06007905 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7906 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7907}
7908
7909/**
7910 * ipr_pci_error_detected - Called when a PCI error is detected.
7911 * @pdev: PCI device struct
7912 * @state: PCI channel state
7913 *
7914 * Description: Called when a PCI error is detected.
7915 *
7916 * Return value:
7917 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7918 */
7919static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7920 pci_channel_state_t state)
7921{
7922 switch (state) {
7923 case pci_channel_io_frozen:
7924 ipr_pci_frozen(pdev);
7925 return PCI_ERS_RESULT_NEED_RESET;
7926 case pci_channel_io_perm_failure:
7927 ipr_pci_perm_failure(pdev);
7928 return PCI_ERS_RESULT_DISCONNECT;
7929 break;
7930 default:
7931 break;
7932 }
7933 return PCI_ERS_RESULT_NEED_RESET;
7934}
7935
7936/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007937 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7938 * @ioa_cfg: ioa cfg struct
7939 *
7940 * Description: This is the second phase of adapter intialization
7941 * This function takes care of initilizing the adapter to the point
7942 * where it can accept new commands.
7943
7944 * Return value:
Joe Perchesb1c11812008-02-03 17:28:22 +02007945 * 0 on success / -EIO on failure
Linus Torvalds1da177e2005-04-16 15:20:36 -07007946 **/
7947static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7948{
7949 int rc = 0;
7950 unsigned long host_lock_flags = 0;
7951
7952 ENTER;
7953 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7954 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
brking@us.ibm.comce155cc2005-11-17 09:35:12 -06007955 if (ioa_cfg->needs_hard_reset) {
7956 ioa_cfg->needs_hard_reset = 0;
7957 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7958 } else
7959 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7960 IPR_SHUTDOWN_NONE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007961
7962 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7963 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7964 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7965
7966 if (ioa_cfg->ioa_is_dead) {
7967 rc = -EIO;
7968 } else if (ipr_invalid_adapter(ioa_cfg)) {
7969 if (!ipr_testmode)
7970 rc = -EIO;
7971
7972 dev_err(&ioa_cfg->pdev->dev,
7973 "Adapter not supported in this hardware configuration.\n");
7974 }
7975
7976 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7977
7978 LEAVE;
7979 return rc;
7980}
7981
7982/**
7983 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7984 * @ioa_cfg: ioa config struct
7985 *
7986 * Return value:
7987 * none
7988 **/
7989static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7990{
7991 int i;
7992
7993 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7994 if (ioa_cfg->ipr_cmnd_list[i])
7995 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7996 ioa_cfg->ipr_cmnd_list[i],
7997 ioa_cfg->ipr_cmnd_list_dma[i]);
7998
7999 ioa_cfg->ipr_cmnd_list[i] = NULL;
8000 }
8001
8002 if (ioa_cfg->ipr_cmd_pool)
8003 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8004
8005 ioa_cfg->ipr_cmd_pool = NULL;
8006}
8007
8008/**
8009 * ipr_free_mem - Frees memory allocated for an adapter
8010 * @ioa_cfg: ioa cfg struct
8011 *
8012 * Return value:
8013 * nothing
8014 **/
8015static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8016{
8017 int i;
8018
8019 kfree(ioa_cfg->res_entries);
8020 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8021 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8022 ipr_free_cmd_blks(ioa_cfg);
8023 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8024 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008025 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8026 ioa_cfg->u.cfg_table,
Linus Torvalds1da177e2005-04-16 15:20:36 -07008027 ioa_cfg->cfg_table_dma);
8028
8029 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8030 pci_free_consistent(ioa_cfg->pdev,
8031 sizeof(struct ipr_hostrcb),
8032 ioa_cfg->hostrcb[i],
8033 ioa_cfg->hostrcb_dma[i]);
8034 }
8035
8036 ipr_free_dump(ioa_cfg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008037 kfree(ioa_cfg->trace);
8038}
8039
8040/**
8041 * ipr_free_all_resources - Free all allocated resources for an adapter.
8042 * @ipr_cmd: ipr command struct
8043 *
8044 * This function frees all allocated resources for the
8045 * specified adapter.
8046 *
8047 * Return value:
8048 * none
8049 **/
8050static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8051{
8052 struct pci_dev *pdev = ioa_cfg->pdev;
8053
8054 ENTER;
8055 free_irq(pdev->irq, ioa_cfg);
Wayne Boyer5a9ef252009-01-23 09:17:35 -08008056 pci_disable_msi(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008057 iounmap(ioa_cfg->hdw_dma_regs);
8058 pci_release_regions(pdev);
8059 ipr_free_mem(ioa_cfg);
8060 scsi_host_put(ioa_cfg->host);
8061 pci_disable_device(pdev);
8062 LEAVE;
8063}
8064
8065/**
8066 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8067 * @ioa_cfg: ioa config struct
8068 *
8069 * Return value:
8070 * 0 on success / -ENOMEM on allocation failure
8071 **/
8072static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8073{
8074 struct ipr_cmnd *ipr_cmd;
8075 struct ipr_ioarcb *ioarcb;
8076 dma_addr_t dma_addr;
8077 int i;
8078
8079 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
Wayne Boyera32c0552010-02-19 13:23:36 -08008080 sizeof(struct ipr_cmnd), 16, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008081
8082 if (!ioa_cfg->ipr_cmd_pool)
8083 return -ENOMEM;
8084
8085 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
Christoph Lametere94b1762006-12-06 20:33:17 -08008086 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008087
8088 if (!ipr_cmd) {
8089 ipr_free_cmd_blks(ioa_cfg);
8090 return -ENOMEM;
8091 }
8092
8093 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8094 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8095 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8096
8097 ioarcb = &ipr_cmd->ioarcb;
Wayne Boyera32c0552010-02-19 13:23:36 -08008098 ipr_cmd->dma_addr = dma_addr;
8099 if (ioa_cfg->sis64)
8100 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8101 else
8102 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8103
Linus Torvalds1da177e2005-04-16 15:20:36 -07008104 ioarcb->host_response_handle = cpu_to_be32(i << 2);
Wayne Boyera32c0552010-02-19 13:23:36 -08008105 if (ioa_cfg->sis64) {
8106 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8107 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8108 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
Wayne Boyer96d21f02010-05-10 09:13:27 -07008109 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
Wayne Boyera32c0552010-02-19 13:23:36 -08008110 } else {
8111 ioarcb->write_ioadl_addr =
8112 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8113 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8114 ioarcb->ioasa_host_pci_addr =
Wayne Boyer96d21f02010-05-10 09:13:27 -07008115 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
Wayne Boyera32c0552010-02-19 13:23:36 -08008116 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008117 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8118 ipr_cmd->cmd_index = i;
8119 ipr_cmd->ioa_cfg = ioa_cfg;
8120 ipr_cmd->sense_buffer_dma = dma_addr +
8121 offsetof(struct ipr_cmnd, sense_buffer);
8122
8123 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8124 }
8125
8126 return 0;
8127}
8128
8129/**
8130 * ipr_alloc_mem - Allocate memory for an adapter
8131 * @ioa_cfg: ioa config struct
8132 *
8133 * Return value:
8134 * 0 on success / non-zero for error
8135 **/
8136static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8137{
8138 struct pci_dev *pdev = ioa_cfg->pdev;
8139 int i, rc = -ENOMEM;
8140
8141 ENTER;
brking@us.ibm.com0bc42e32005-11-01 17:01:20 -06008142 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008143 ioa_cfg->max_devs_supported, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008144
8145 if (!ioa_cfg->res_entries)
8146 goto out;
8147
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008148 if (ioa_cfg->sis64) {
8149 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8150 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8151 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8152 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8153 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8154 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8155 }
8156
8157 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07008158 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008159 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8160 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008161
8162 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8163 sizeof(struct ipr_misc_cbs),
8164 &ioa_cfg->vpd_cbs_dma);
8165
8166 if (!ioa_cfg->vpd_cbs)
8167 goto out_free_res_entries;
8168
8169 if (ipr_alloc_cmd_blks(ioa_cfg))
8170 goto out_free_vpd_cbs;
8171
8172 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8173 sizeof(u32) * IPR_NUM_CMD_BLKS,
8174 &ioa_cfg->host_rrq_dma);
8175
8176 if (!ioa_cfg->host_rrq)
8177 goto out_ipr_free_cmd_blocks;
8178
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008179 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8180 ioa_cfg->cfg_table_size,
8181 &ioa_cfg->cfg_table_dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008182
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008183 if (!ioa_cfg->u.cfg_table)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008184 goto out_free_host_rrq;
8185
8186 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8187 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8188 sizeof(struct ipr_hostrcb),
8189 &ioa_cfg->hostrcb_dma[i]);
8190
8191 if (!ioa_cfg->hostrcb[i])
8192 goto out_free_hostrcb_dma;
8193
8194 ioa_cfg->hostrcb[i]->hostrcb_dma =
8195 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
Brian King49dc6a12006-11-21 10:28:35 -06008196 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008197 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8198 }
8199
brking@us.ibm.com0bc42e32005-11-01 17:01:20 -06008200 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
Linus Torvalds1da177e2005-04-16 15:20:36 -07008201 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8202
8203 if (!ioa_cfg->trace)
8204 goto out_free_hostrcb_dma;
8205
Linus Torvalds1da177e2005-04-16 15:20:36 -07008206 rc = 0;
8207out:
8208 LEAVE;
8209 return rc;
8210
8211out_free_hostrcb_dma:
8212 while (i-- > 0) {
8213 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8214 ioa_cfg->hostrcb[i],
8215 ioa_cfg->hostrcb_dma[i]);
8216 }
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008217 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8218 ioa_cfg->u.cfg_table,
8219 ioa_cfg->cfg_table_dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008220out_free_host_rrq:
8221 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8222 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8223out_ipr_free_cmd_blocks:
8224 ipr_free_cmd_blks(ioa_cfg);
8225out_free_vpd_cbs:
8226 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8227 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8228out_free_res_entries:
8229 kfree(ioa_cfg->res_entries);
8230 goto out;
8231}
8232
8233/**
8234 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8235 * @ioa_cfg: ioa config struct
8236 *
8237 * Return value:
8238 * none
8239 **/
8240static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8241{
8242 int i;
8243
8244 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8245 ioa_cfg->bus_attr[i].bus = i;
8246 ioa_cfg->bus_attr[i].qas_enabled = 0;
8247 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8248 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8249 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8250 else
8251 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8252 }
8253}
8254
8255/**
8256 * ipr_init_ioa_cfg - Initialize IOA config struct
8257 * @ioa_cfg: ioa config struct
8258 * @host: scsi host struct
8259 * @pdev: PCI dev struct
8260 *
8261 * Return value:
8262 * none
8263 **/
8264static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8265 struct Scsi_Host *host, struct pci_dev *pdev)
8266{
8267 const struct ipr_interrupt_offsets *p;
8268 struct ipr_interrupts *t;
8269 void __iomem *base;
8270
8271 ioa_cfg->host = host;
8272 ioa_cfg->pdev = pdev;
8273 ioa_cfg->log_level = ipr_log_level;
brking@us.ibm.com3d1d0da2005-11-01 17:01:54 -06008274 ioa_cfg->doorbell = IPR_DOORBELL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008275 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8276 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8277 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8278 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8279 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8280 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8281 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8282 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8283
8284 INIT_LIST_HEAD(&ioa_cfg->free_q);
8285 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8286 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8287 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8288 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8289 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
David Howellsc4028952006-11-22 14:57:56 +00008290 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008291 init_waitqueue_head(&ioa_cfg->reset_wait_q);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008292 init_waitqueue_head(&ioa_cfg->msi_wait_q);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008293 ioa_cfg->sdt_state = INACTIVE;
8294
8295 ipr_initialize_bus_attr(ioa_cfg);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008296 ioa_cfg->max_devs_supported = ipr_max_devs;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008297
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008298 if (ioa_cfg->sis64) {
8299 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8300 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8301 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8302 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8303 } else {
8304 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8305 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8306 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8307 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8308 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008309 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8310 host->unique_id = host->host_no;
8311 host->max_cmd_len = IPR_MAX_CDB_LEN;
8312 pci_set_drvdata(pdev, ioa_cfg);
8313
8314 p = &ioa_cfg->chip_cfg->regs;
8315 t = &ioa_cfg->regs;
8316 base = ioa_cfg->hdw_dma_regs;
8317
8318 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8319 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008320 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008321 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008322 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008323 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008324 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008325 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008326 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008327 t->ioarrin_reg = base + p->ioarrin_reg;
8328 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008329 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008330 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008331 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008332 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008333 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
Wayne Boyerdcbad002010-02-19 13:24:14 -08008334
8335 if (ioa_cfg->sis64) {
Wayne Boyer214777b2010-02-19 13:24:26 -08008336 t->init_feedback_reg = base + p->init_feedback_reg;
Wayne Boyerdcbad002010-02-19 13:24:14 -08008337 t->dump_addr_reg = base + p->dump_addr_reg;
8338 t->dump_data_reg = base + p->dump_data_reg;
Wayne Boyer8701f182010-06-04 10:26:50 -07008339 t->endian_swap_reg = base + p->endian_swap_reg;
Wayne Boyerdcbad002010-02-19 13:24:14 -08008340 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008341}
8342
8343/**
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008344 * ipr_get_chip_info - Find adapter chip information
Linus Torvalds1da177e2005-04-16 15:20:36 -07008345 * @dev_id: PCI device id struct
8346 *
8347 * Return value:
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008348 * ptr to chip information on success / NULL on failure
Linus Torvalds1da177e2005-04-16 15:20:36 -07008349 **/
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008350static const struct ipr_chip_t * __devinit
8351ipr_get_chip_info(const struct pci_device_id *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008352{
8353 int i;
8354
Linus Torvalds1da177e2005-04-16 15:20:36 -07008355 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8356 if (ipr_chip[i].vendor == dev_id->vendor &&
8357 ipr_chip[i].device == dev_id->device)
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008358 return &ipr_chip[i];
Linus Torvalds1da177e2005-04-16 15:20:36 -07008359 return NULL;
8360}
8361
8362/**
Wayne Boyer95fecd92009-06-16 15:13:28 -07008363 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8364 * @pdev: PCI device struct
8365 *
8366 * Description: Simply set the msi_received flag to 1 indicating that
8367 * Message Signaled Interrupts are supported.
8368 *
8369 * Return value:
8370 * 0 on success / non-zero on failure
8371 **/
8372static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8373{
8374 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8375 unsigned long lock_flags = 0;
8376 irqreturn_t rc = IRQ_HANDLED;
8377
8378 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8379
8380 ioa_cfg->msi_received = 1;
8381 wake_up(&ioa_cfg->msi_wait_q);
8382
8383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8384 return rc;
8385}
8386
8387/**
8388 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8389 * @pdev: PCI device struct
8390 *
8391 * Description: The return value from pci_enable_msi() can not always be
8392 * trusted. This routine sets up and initiates a test interrupt to determine
8393 * if the interrupt is received via the ipr_test_intr() service routine.
8394 * If the tests fails, the driver will fall back to LSI.
8395 *
8396 * Return value:
8397 * 0 on success / non-zero on failure
8398 **/
8399static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8400 struct pci_dev *pdev)
8401{
8402 int rc;
8403 volatile u32 int_reg;
8404 unsigned long lock_flags = 0;
8405
8406 ENTER;
8407
8408 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8409 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8410 ioa_cfg->msi_received = 0;
8411 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
Wayne Boyer214777b2010-02-19 13:24:26 -08008412 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008413 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8414 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8415
8416 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8417 if (rc) {
8418 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8419 return rc;
8420 } else if (ipr_debug)
8421 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8422
Wayne Boyer214777b2010-02-19 13:24:26 -08008423 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008424 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8425 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8426 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8427
8428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8429 if (!ioa_cfg->msi_received) {
8430 /* MSI test failed */
8431 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8432 rc = -EOPNOTSUPP;
8433 } else if (ipr_debug)
8434 dev_info(&pdev->dev, "MSI test succeeded.\n");
8435
8436 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8437
8438 free_irq(pdev->irq, ioa_cfg);
8439
8440 LEAVE;
8441
8442 return rc;
8443}
8444
8445/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07008446 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8447 * @pdev: PCI device struct
8448 * @dev_id: PCI device id struct
8449 *
8450 * Return value:
8451 * 0 on success / non-zero on failure
8452 **/
8453static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8454 const struct pci_device_id *dev_id)
8455{
8456 struct ipr_ioa_cfg *ioa_cfg;
8457 struct Scsi_Host *host;
8458 unsigned long ipr_regs_pci;
8459 void __iomem *ipr_regs;
Eric Sesterhenna2a65a32006-09-25 16:59:07 -07008460 int rc = PCIBIOS_SUCCESSFUL;
Brian King473b1e82007-05-02 10:44:11 -05008461 volatile u32 mask, uproc, interrupts;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008462
8463 ENTER;
8464
8465 if ((rc = pci_enable_device(pdev))) {
8466 dev_err(&pdev->dev, "Cannot enable adapter\n");
8467 goto out;
8468 }
8469
8470 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8471
8472 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8473
8474 if (!host) {
8475 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8476 rc = -ENOMEM;
8477 goto out_disable;
8478 }
8479
8480 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8481 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
Brian King35a39692006-09-25 12:39:20 -05008482 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8483 sata_port_info.flags, &ipr_sata_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008484
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008485 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008486
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008487 if (!ioa_cfg->ipr_chip) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07008488 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8489 dev_id->vendor, dev_id->device);
8490 goto out_scsi_host_put;
8491 }
8492
Wayne Boyera32c0552010-02-19 13:23:36 -08008493 /* set SIS 32 or SIS 64 */
8494 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008495 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8496
Brian King5469cb52007-03-29 12:42:40 -05008497 if (ipr_transop_timeout)
8498 ioa_cfg->transop_timeout = ipr_transop_timeout;
8499 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8500 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8501 else
8502 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8503
Auke Kok44c10132007-06-08 15:46:36 -07008504 ioa_cfg->revid = pdev->revision;
Brian King463fc692007-05-07 17:09:05 -05008505
Linus Torvalds1da177e2005-04-16 15:20:36 -07008506 ipr_regs_pci = pci_resource_start(pdev, 0);
8507
8508 rc = pci_request_regions(pdev, IPR_NAME);
8509 if (rc < 0) {
8510 dev_err(&pdev->dev,
8511 "Couldn't register memory range of registers\n");
8512 goto out_scsi_host_put;
8513 }
8514
Arjan van de Ven25729a72008-09-28 16:18:02 -07008515 ipr_regs = pci_ioremap_bar(pdev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008516
8517 if (!ipr_regs) {
8518 dev_err(&pdev->dev,
8519 "Couldn't map memory range of registers\n");
8520 rc = -ENOMEM;
8521 goto out_release_regions;
8522 }
8523
8524 ioa_cfg->hdw_dma_regs = ipr_regs;
8525 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8526 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8527
8528 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8529
8530 pci_set_master(pdev);
8531
Wayne Boyera32c0552010-02-19 13:23:36 -08008532 if (ioa_cfg->sis64) {
8533 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8534 if (rc < 0) {
8535 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8536 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8537 }
8538
8539 } else
8540 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8541
Linus Torvalds1da177e2005-04-16 15:20:36 -07008542 if (rc < 0) {
8543 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8544 goto cleanup_nomem;
8545 }
8546
8547 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8548 ioa_cfg->chip_cfg->cache_line_size);
8549
8550 if (rc != PCIBIOS_SUCCESSFUL) {
8551 dev_err(&pdev->dev, "Write of cache line size failed\n");
8552 rc = -EIO;
8553 goto cleanup_nomem;
8554 }
8555
Wayne Boyer95fecd92009-06-16 15:13:28 -07008556 /* Enable MSI style interrupts if they are supported. */
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008557 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
Wayne Boyer95fecd92009-06-16 15:13:28 -07008558 rc = ipr_test_msi(ioa_cfg, pdev);
8559 if (rc == -EOPNOTSUPP)
8560 pci_disable_msi(pdev);
8561 else if (rc)
8562 goto out_msi_disable;
8563 else
8564 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8565 } else if (ipr_debug)
8566 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8567
Linus Torvalds1da177e2005-04-16 15:20:36 -07008568 /* Save away PCI config space for use following IOA reset */
8569 rc = pci_save_state(pdev);
8570
8571 if (rc != PCIBIOS_SUCCESSFUL) {
8572 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8573 rc = -EIO;
8574 goto cleanup_nomem;
8575 }
8576
8577 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8578 goto cleanup_nomem;
8579
8580 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8581 goto cleanup_nomem;
8582
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008583 if (ioa_cfg->sis64)
8584 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8585 + ((sizeof(struct ipr_config_table_entry64)
8586 * ioa_cfg->max_devs_supported)));
8587 else
8588 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8589 + ((sizeof(struct ipr_config_table_entry)
8590 * ioa_cfg->max_devs_supported)));
8591
Linus Torvalds1da177e2005-04-16 15:20:36 -07008592 rc = ipr_alloc_mem(ioa_cfg);
8593 if (rc < 0) {
8594 dev_err(&pdev->dev,
8595 "Couldn't allocate enough memory for device driver!\n");
8596 goto cleanup_nomem;
8597 }
8598
brking@us.ibm.comce155cc2005-11-17 09:35:12 -06008599 /*
8600 * If HRRQ updated interrupt is not masked, or reset alert is set,
8601 * the card is in an unknown state and needs a hard reset
8602 */
Wayne Boyer214777b2010-02-19 13:24:26 -08008603 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8604 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8605 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
brking@us.ibm.comce155cc2005-11-17 09:35:12 -06008606 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8607 ioa_cfg->needs_hard_reset = 1;
Brian King473b1e82007-05-02 10:44:11 -05008608 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8609 ioa_cfg->needs_hard_reset = 1;
8610 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8611 ioa_cfg->ioa_unit_checked = 1;
brking@us.ibm.comce155cc2005-11-17 09:35:12 -06008612
Linus Torvalds1da177e2005-04-16 15:20:36 -07008613 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008614 rc = request_irq(pdev->irq, ipr_isr,
8615 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8616 IPR_NAME, ioa_cfg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008617
8618 if (rc) {
8619 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8620 pdev->irq, rc);
8621 goto cleanup_nolog;
8622 }
8623
Brian King463fc692007-05-07 17:09:05 -05008624 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8625 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8626 ioa_cfg->needs_warm_reset = 1;
8627 ioa_cfg->reset = ipr_reset_slot_reset;
8628 } else
8629 ioa_cfg->reset = ipr_reset_start_bist;
8630
Linus Torvalds1da177e2005-04-16 15:20:36 -07008631 spin_lock(&ipr_driver_lock);
8632 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8633 spin_unlock(&ipr_driver_lock);
8634
8635 LEAVE;
8636out:
8637 return rc;
8638
8639cleanup_nolog:
8640 ipr_free_mem(ioa_cfg);
8641cleanup_nomem:
8642 iounmap(ipr_regs);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008643out_msi_disable:
8644 pci_disable_msi(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008645out_release_regions:
8646 pci_release_regions(pdev);
8647out_scsi_host_put:
8648 scsi_host_put(host);
8649out_disable:
8650 pci_disable_device(pdev);
8651 goto out;
8652}
8653
8654/**
8655 * ipr_scan_vsets - Scans for VSET devices
8656 * @ioa_cfg: ioa config struct
8657 *
8658 * Description: Since the VSET resources do not follow SAM in that we can have
8659 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8660 *
8661 * Return value:
8662 * none
8663 **/
8664static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8665{
8666 int target, lun;
8667
8668 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8669 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8670 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8671}
8672
8673/**
8674 * ipr_initiate_ioa_bringdown - Bring down an adapter
8675 * @ioa_cfg: ioa config struct
8676 * @shutdown_type: shutdown type
8677 *
8678 * Description: This function will initiate bringing down the adapter.
8679 * This consists of issuing an IOA shutdown to the adapter
8680 * to flush the cache, and running BIST.
8681 * If the caller needs to wait on the completion of the reset,
8682 * the caller must sleep on the reset_wait_q.
8683 *
8684 * Return value:
8685 * none
8686 **/
8687static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8688 enum ipr_shutdown_type shutdown_type)
8689{
8690 ENTER;
8691 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8692 ioa_cfg->sdt_state = ABORT_DUMP;
8693 ioa_cfg->reset_retries = 0;
8694 ioa_cfg->in_ioa_bringdown = 1;
8695 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8696 LEAVE;
8697}
8698
8699/**
8700 * __ipr_remove - Remove a single adapter
8701 * @pdev: pci device struct
8702 *
8703 * Adapter hot plug remove entry point.
8704 *
8705 * Return value:
8706 * none
8707 **/
8708static void __ipr_remove(struct pci_dev *pdev)
8709{
8710 unsigned long host_lock_flags = 0;
8711 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8712 ENTER;
8713
8714 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
Brian King970ea292007-04-26 16:00:06 -05008715 while(ioa_cfg->in_reset_reload) {
8716 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8717 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8718 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8719 }
8720
Linus Torvalds1da177e2005-04-16 15:20:36 -07008721 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8722
8723 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8724 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
brking@us.ibm.com 5cbf5ea2005-05-02 19:50:47 -05008725 flush_scheduled_work();
Linus Torvalds1da177e2005-04-16 15:20:36 -07008726 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8727
8728 spin_lock(&ipr_driver_lock);
8729 list_del(&ioa_cfg->queue);
8730 spin_unlock(&ipr_driver_lock);
8731
8732 if (ioa_cfg->sdt_state == ABORT_DUMP)
8733 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8734 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8735
8736 ipr_free_all_resources(ioa_cfg);
8737
8738 LEAVE;
8739}
8740
8741/**
8742 * ipr_remove - IOA hot plug remove entry point
8743 * @pdev: pci device struct
8744 *
8745 * Adapter hot plug remove entry point.
8746 *
8747 * Return value:
8748 * none
8749 **/
Kleber S. Souzaf3816422009-04-22 10:50:28 -03008750static void __devexit ipr_remove(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008751{
8752 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8753
8754 ENTER;
8755
Tony Jonesee959b02008-02-22 00:13:36 +01008756 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07008757 &ipr_trace_attr);
Tony Jonesee959b02008-02-22 00:13:36 +01008758 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07008759 &ipr_dump_attr);
8760 scsi_remove_host(ioa_cfg->host);
8761
8762 __ipr_remove(pdev);
8763
8764 LEAVE;
8765}
8766
8767/**
8768 * ipr_probe - Adapter hot plug add entry point
8769 *
8770 * Return value:
8771 * 0 on success / non-zero on failure
8772 **/
8773static int __devinit ipr_probe(struct pci_dev *pdev,
8774 const struct pci_device_id *dev_id)
8775{
8776 struct ipr_ioa_cfg *ioa_cfg;
8777 int rc;
8778
8779 rc = ipr_probe_ioa(pdev, dev_id);
8780
8781 if (rc)
8782 return rc;
8783
8784 ioa_cfg = pci_get_drvdata(pdev);
8785 rc = ipr_probe_ioa_part2(ioa_cfg);
8786
8787 if (rc) {
8788 __ipr_remove(pdev);
8789 return rc;
8790 }
8791
8792 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8793
8794 if (rc) {
8795 __ipr_remove(pdev);
8796 return rc;
8797 }
8798
Tony Jonesee959b02008-02-22 00:13:36 +01008799 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07008800 &ipr_trace_attr);
8801
8802 if (rc) {
8803 scsi_remove_host(ioa_cfg->host);
8804 __ipr_remove(pdev);
8805 return rc;
8806 }
8807
Tony Jonesee959b02008-02-22 00:13:36 +01008808 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07008809 &ipr_dump_attr);
8810
8811 if (rc) {
Tony Jonesee959b02008-02-22 00:13:36 +01008812 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07008813 &ipr_trace_attr);
8814 scsi_remove_host(ioa_cfg->host);
8815 __ipr_remove(pdev);
8816 return rc;
8817 }
8818
8819 scsi_scan_host(ioa_cfg->host);
8820 ipr_scan_vsets(ioa_cfg);
8821 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8822 ioa_cfg->allow_ml_add_del = 1;
brking@us.ibm.com11cd8f12005-11-01 17:00:11 -06008823 ioa_cfg->host->max_channel = IPR_VSET_BUS;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008824 schedule_work(&ioa_cfg->work_q);
8825 return 0;
8826}
8827
8828/**
8829 * ipr_shutdown - Shutdown handler.
Greg Kroah-Hartmand18c3db2005-06-23 17:35:56 -07008830 * @pdev: pci device struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07008831 *
8832 * This function is invoked upon system shutdown/reboot. It will issue
8833 * an adapter shutdown to the adapter to flush the write cache.
8834 *
8835 * Return value:
8836 * none
8837 **/
Greg Kroah-Hartmand18c3db2005-06-23 17:35:56 -07008838static void ipr_shutdown(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008839{
Greg Kroah-Hartmand18c3db2005-06-23 17:35:56 -07008840 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008841 unsigned long lock_flags = 0;
8842
8843 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King970ea292007-04-26 16:00:06 -05008844 while(ioa_cfg->in_reset_reload) {
8845 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8846 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8847 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8848 }
8849
Linus Torvalds1da177e2005-04-16 15:20:36 -07008850 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8851 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8852 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8853}
8854
8855static struct pci_device_id ipr_pci_table[] __devinitdata = {
8856 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
Brian King6d84c942007-01-23 11:25:23 -06008857 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008858 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
Brian King6d84c942007-01-23 11:25:23 -06008859 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008860 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
Brian King6d84c942007-01-23 11:25:23 -06008861 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008862 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
Brian King6d84c942007-01-23 11:25:23 -06008863 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008864 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
Brian King6d84c942007-01-23 11:25:23 -06008865 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008866 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
Brian King6d84c942007-01-23 11:25:23 -06008867 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008868 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
Brian King6d84c942007-01-23 11:25:23 -06008869 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06008870 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
Brian King5469cb52007-03-29 12:42:40 -05008871 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
8872 IPR_USE_LONG_TRANSOP_TIMEOUT },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06008873 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
Brian King6d84c942007-01-23 11:25:23 -06008874 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06008875 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
Brian King22d2e402007-04-26 16:00:13 -05008876 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8877 IPR_USE_LONG_TRANSOP_TIMEOUT },
Brian King60e74862006-11-21 10:28:10 -06008878 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
Brian King5469cb52007-03-29 12:42:40 -05008879 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8880 IPR_USE_LONG_TRANSOP_TIMEOUT },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06008881 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
Brian King6d84c942007-01-23 11:25:23 -06008882 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06008883 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
Brian King22d2e402007-04-26 16:00:13 -05008884 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8885 IPR_USE_LONG_TRANSOP_TIMEOUT},
Brian King60e74862006-11-21 10:28:10 -06008886 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
Brian King5469cb52007-03-29 12:42:40 -05008887 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8888 IPR_USE_LONG_TRANSOP_TIMEOUT },
Brian King60e74862006-11-21 10:28:10 -06008889 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
Brian King22d2e402007-04-26 16:00:13 -05008890 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
8891 IPR_USE_LONG_TRANSOP_TIMEOUT },
Brian King185eb312007-03-29 12:42:53 -05008892 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
Brian King185eb312007-03-29 12:42:53 -05008893 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
8894 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
Brian King5469cb52007-03-29 12:42:40 -05008895 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
Brian King463fc692007-05-07 17:09:05 -05008896 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008897 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
Brian King6d84c942007-01-23 11:25:23 -06008898 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008899 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
Brian King6d84c942007-01-23 11:25:23 -06008900 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06008901 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
Brian King5469cb52007-03-29 12:42:40 -05008902 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
8903 IPR_USE_LONG_TRANSOP_TIMEOUT },
Brian King60e74862006-11-21 10:28:10 -06008904 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
Brian King5469cb52007-03-29 12:42:40 -05008905 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
8906 IPR_USE_LONG_TRANSOP_TIMEOUT },
Wayne Boyerd7b46272010-02-19 13:24:38 -08008907 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8908 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
8909 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8910 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
8911 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8912 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
8913 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8914 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
8915 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8916 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
8917 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8918 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
8919 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8920 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
8921 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8922 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07008923 { }
8924};
8925MODULE_DEVICE_TABLE(pci, ipr_pci_table);
8926
Linas Vepstasf8a88b192006-02-03 16:52:42 -06008927static struct pci_error_handlers ipr_err_handler = {
8928 .error_detected = ipr_pci_error_detected,
8929 .slot_reset = ipr_pci_slot_reset,
8930};
8931
Linus Torvalds1da177e2005-04-16 15:20:36 -07008932static struct pci_driver ipr_driver = {
8933 .name = IPR_NAME,
8934 .id_table = ipr_pci_table,
8935 .probe = ipr_probe,
Kleber S. Souzaf3816422009-04-22 10:50:28 -03008936 .remove = __devexit_p(ipr_remove),
Greg Kroah-Hartmand18c3db2005-06-23 17:35:56 -07008937 .shutdown = ipr_shutdown,
Linas Vepstasf8a88b192006-02-03 16:52:42 -06008938 .err_handler = &ipr_err_handler,
Linus Torvalds1da177e2005-04-16 15:20:36 -07008939};
8940
8941/**
Wayne Boyerf72919e2010-02-19 13:24:21 -08008942 * ipr_halt_done - Shutdown prepare completion
8943 *
8944 * Return value:
8945 * none
8946 **/
8947static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
8948{
8949 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8950
8951 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8952}
8953
8954/**
8955 * ipr_halt - Issue shutdown prepare to all adapters
8956 *
8957 * Return value:
8958 * NOTIFY_OK on success / NOTIFY_DONE on failure
8959 **/
8960static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
8961{
8962 struct ipr_cmnd *ipr_cmd;
8963 struct ipr_ioa_cfg *ioa_cfg;
8964 unsigned long flags = 0;
8965
8966 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
8967 return NOTIFY_DONE;
8968
8969 spin_lock(&ipr_driver_lock);
8970
8971 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
8972 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8973 if (!ioa_cfg->allow_cmds) {
8974 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8975 continue;
8976 }
8977
8978 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8979 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8980 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8981 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8982 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
8983
8984 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
8985 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8986 }
8987 spin_unlock(&ipr_driver_lock);
8988
8989 return NOTIFY_OK;
8990}
8991
8992static struct notifier_block ipr_notifier = {
8993 ipr_halt, NULL, 0
8994};
8995
8996/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07008997 * ipr_init - Module entry point
8998 *
8999 * Return value:
9000 * 0 on success / negative value on failure
9001 **/
9002static int __init ipr_init(void)
9003{
9004 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9005 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9006
Wayne Boyerf72919e2010-02-19 13:24:21 -08009007 register_reboot_notifier(&ipr_notifier);
Henrik Kretzschmardcbccbde2006-09-25 16:58:58 -07009008 return pci_register_driver(&ipr_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07009009}
9010
9011/**
9012 * ipr_exit - Module unload
9013 *
9014 * Module unload entry point.
9015 *
9016 * Return value:
9017 * none
9018 **/
9019static void __exit ipr_exit(void)
9020{
Wayne Boyerf72919e2010-02-19 13:24:21 -08009021 unregister_reboot_notifier(&ipr_notifier);
Linus Torvalds1da177e2005-04-16 15:20:36 -07009022 pci_unregister_driver(&ipr_driver);
9023}
9024
9025module_init(ipr_init);
9026module_exit(ipr_exit);