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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>
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -030063#include <linux/vmalloc.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070064#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
Brian King35a39692006-09-25 12:39:20 -050075#include <linux/libata.h>
Brian King0ce3a7e2008-07-11 13:37:50 -050076#include <linux/hdreg.h>
Wayne Boyerf72919e2010-02-19 13:24:21 -080077#include <linux/reboot.h>
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -080078#include <linux/stringify.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070079#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070087#include "ipr.h"
88
89/*
90 * Global Data
91 */
Denis Chengb7d68ca2007-12-13 16:14:27 -080092static LIST_HEAD(ipr_ioa_head);
Linus Torvalds1da177e2005-04-16 15:20:36 -070093static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
Brian King5469cb52007-03-29 12:42:40 -050097static unsigned int ipr_transop_timeout = 0;
brking@us.ibm.comd3c74872005-11-01 17:01:34 -060098static unsigned int ipr_debug = 0;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -080099static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
Brian Kingac09c342007-04-26 16:00:16 -0500100static unsigned int ipr_dual_ioa_raid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101static DEFINE_SPINLOCK(ipr_driver_lock);
102
103/* This table describes the differences between DMA controller chips */
104static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
Brian King60e74862006-11-21 10:28:10 -0600105 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 .mailbox = 0x0042C,
107 .cache_line_size = 0x20,
108 {
109 .set_interrupt_mask_reg = 0x0022C,
110 .clr_interrupt_mask_reg = 0x00230,
Wayne Boyer214777b2010-02-19 13:24:26 -0800111 .clr_interrupt_mask_reg32 = 0x00230,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 .sense_interrupt_mask_reg = 0x0022C,
Wayne Boyer214777b2010-02-19 13:24:26 -0800113 .sense_interrupt_mask_reg32 = 0x0022C,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 .clr_interrupt_reg = 0x00228,
Wayne Boyer214777b2010-02-19 13:24:26 -0800115 .clr_interrupt_reg32 = 0x00228,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 .sense_interrupt_reg = 0x00224,
Wayne Boyer214777b2010-02-19 13:24:26 -0800117 .sense_interrupt_reg32 = 0x00224,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 .ioarrin_reg = 0x00404,
119 .sense_uproc_interrupt_reg = 0x00214,
Wayne Boyer214777b2010-02-19 13:24:26 -0800120 .sense_uproc_interrupt_reg32 = 0x00214,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 .set_uproc_interrupt_reg = 0x00214,
Wayne Boyer214777b2010-02-19 13:24:26 -0800122 .set_uproc_interrupt_reg32 = 0x00214,
123 .clr_uproc_interrupt_reg = 0x00218,
124 .clr_uproc_interrupt_reg32 = 0x00218
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 }
126 },
127 { /* Snipe and Scamp */
128 .mailbox = 0x0052C,
129 .cache_line_size = 0x20,
130 {
131 .set_interrupt_mask_reg = 0x00288,
132 .clr_interrupt_mask_reg = 0x0028C,
Wayne Boyer214777b2010-02-19 13:24:26 -0800133 .clr_interrupt_mask_reg32 = 0x0028C,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 .sense_interrupt_mask_reg = 0x00288,
Wayne Boyer214777b2010-02-19 13:24:26 -0800135 .sense_interrupt_mask_reg32 = 0x00288,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136 .clr_interrupt_reg = 0x00284,
Wayne Boyer214777b2010-02-19 13:24:26 -0800137 .clr_interrupt_reg32 = 0x00284,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 .sense_interrupt_reg = 0x00280,
Wayne Boyer214777b2010-02-19 13:24:26 -0800139 .sense_interrupt_reg32 = 0x00280,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140 .ioarrin_reg = 0x00504,
141 .sense_uproc_interrupt_reg = 0x00290,
Wayne Boyer214777b2010-02-19 13:24:26 -0800142 .sense_uproc_interrupt_reg32 = 0x00290,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 .set_uproc_interrupt_reg = 0x00290,
Wayne Boyer214777b2010-02-19 13:24:26 -0800144 .set_uproc_interrupt_reg32 = 0x00290,
145 .clr_uproc_interrupt_reg = 0x00294,
146 .clr_uproc_interrupt_reg32 = 0x00294
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 }
148 },
Wayne Boyera74c1632010-02-19 13:23:51 -0800149 { /* CRoC */
Wayne Boyer110def82010-11-04 09:36:16 -0700150 .mailbox = 0x00044,
Wayne Boyera74c1632010-02-19 13:23:51 -0800151 .cache_line_size = 0x20,
152 {
153 .set_interrupt_mask_reg = 0x00010,
154 .clr_interrupt_mask_reg = 0x00018,
Wayne Boyer214777b2010-02-19 13:24:26 -0800155 .clr_interrupt_mask_reg32 = 0x0001C,
Wayne Boyera74c1632010-02-19 13:23:51 -0800156 .sense_interrupt_mask_reg = 0x00010,
Wayne Boyer214777b2010-02-19 13:24:26 -0800157 .sense_interrupt_mask_reg32 = 0x00014,
Wayne Boyera74c1632010-02-19 13:23:51 -0800158 .clr_interrupt_reg = 0x00008,
Wayne Boyer214777b2010-02-19 13:24:26 -0800159 .clr_interrupt_reg32 = 0x0000C,
Wayne Boyera74c1632010-02-19 13:23:51 -0800160 .sense_interrupt_reg = 0x00000,
Wayne Boyer214777b2010-02-19 13:24:26 -0800161 .sense_interrupt_reg32 = 0x00004,
Wayne Boyera74c1632010-02-19 13:23:51 -0800162 .ioarrin_reg = 0x00070,
163 .sense_uproc_interrupt_reg = 0x00020,
Wayne Boyer214777b2010-02-19 13:24:26 -0800164 .sense_uproc_interrupt_reg32 = 0x00024,
Wayne Boyera74c1632010-02-19 13:23:51 -0800165 .set_uproc_interrupt_reg = 0x00020,
Wayne Boyer214777b2010-02-19 13:24:26 -0800166 .set_uproc_interrupt_reg32 = 0x00024,
Wayne Boyerdcbad002010-02-19 13:24:14 -0800167 .clr_uproc_interrupt_reg = 0x00028,
Wayne Boyer214777b2010-02-19 13:24:26 -0800168 .clr_uproc_interrupt_reg32 = 0x0002C,
169 .init_feedback_reg = 0x0005C,
Wayne Boyerdcbad002010-02-19 13:24:14 -0800170 .dump_addr_reg = 0x00064,
Wayne Boyer8701f182010-06-04 10:26:50 -0700171 .dump_data_reg = 0x00068,
172 .endian_swap_reg = 0x00084
Wayne Boyera74c1632010-02-19 13:23:51 -0800173 }
174 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175};
176
177static const struct ipr_chip_t ipr_chip[] = {
Wayne Boyercb237ef2010-06-17 11:51:40 -0700178 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
186 { 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 -0700187};
188
189static int ipr_max_bus_speeds [] = {
190 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
191};
192
193MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
194MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
195module_param_named(max_speed, ipr_max_speed, uint, 0);
196MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
197module_param_named(log_level, ipr_log_level, uint, 0);
198MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
199module_param_named(testmode, ipr_testmode, int, 0);
200MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
Wayne Boyer2cf22be2009-02-24 11:36:00 -0800201module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
203module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
204MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
Wayne Boyer2cf22be2009-02-24 11:36:00 -0800205module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
brking@us.ibm.comd3c74872005-11-01 17:01:34 -0600206MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
Brian Kingac09c342007-04-26 16:00:16 -0500207module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
208MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -0800209module_param_named(max_devs, ipr_max_devs, int, 0);
210MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
211 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212MODULE_LICENSE("GPL");
213MODULE_VERSION(IPR_DRIVER_VERSION);
214
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215/* A constant array of IOASCs/URCs/Error Messages */
216static const
217struct ipr_error_table_t ipr_error_table[] = {
Brian King933916f2007-03-29 12:43:30 -0500218 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 "8155: An unknown error was received"},
220 {0x00330000, 0, 0,
221 "Soft underlength error"},
222 {0x005A0000, 0, 0,
223 "Command to be cancelled not found"},
224 {0x00808000, 0, 0,
225 "Qualified success"},
Brian King933916f2007-03-29 12:43:30 -0500226 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 "FFFE: Soft device bus error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500228 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500229 "4101: Soft device bus fabric error"},
Wayne Boyer5aa3a332010-02-19 13:24:32 -0800230 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
231 "FFFC: Logical block guard error recovered by the device"},
232 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
233 "FFFC: Logical block reference tag error recovered by the device"},
234 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
235 "4171: Recovered scatter list tag / sequence number error"},
236 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
237 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
238 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
239 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
240 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
241 "FFFD: Recovered logical block reference tag error detected by the IOA"},
242 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFFD: Logical block guard error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500244 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 "FFF9: Device sector reassign successful"},
Brian King933916f2007-03-29 12:43:30 -0500246 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 "FFF7: Media error recovered by device rewrite procedures"},
Brian King933916f2007-03-29 12:43:30 -0500248 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 "7001: IOA sector reassignment successful"},
Brian King933916f2007-03-29 12:43:30 -0500250 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 "FFF9: Soft media error. Sector reassignment recommended"},
Brian King933916f2007-03-29 12:43:30 -0500252 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 "FFF7: Media error recovered by IOA rewrite procedures"},
Brian King933916f2007-03-29 12:43:30 -0500254 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255 "FF3D: Soft PCI bus error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500256 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 "FFF6: Device hardware error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500258 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259 "FFF6: Device hardware error recovered by the device"},
Brian King933916f2007-03-29 12:43:30 -0500260 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 "FF3D: Soft IOA error recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500262 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 "FFFA: Undefined device response recovered by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500264 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 "FFF6: Device bus error, message or command phase"},
Brian King933916f2007-03-29 12:43:30 -0500266 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King35a39692006-09-25 12:39:20 -0500267 "FFFE: Task Management Function failed"},
Brian King933916f2007-03-29 12:43:30 -0500268 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 "FFF6: Failure prediction threshold exceeded"},
Brian King933916f2007-03-29 12:43:30 -0500270 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 "8009: Impending cache battery pack failure"},
272 {0x02040400, 0, 0,
273 "34FF: Disk device format in progress"},
Brian King65f56472007-04-26 16:00:12 -0500274 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
275 "9070: IOA requested reset"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 {0x023F0000, 0, 0,
277 "Synchronization required"},
278 {0x024E0000, 0, 0,
279 "No ready, IOA shutdown"},
280 {0x025A0000, 0, 0,
281 "Not ready, IOA has been shutdown"},
Brian King933916f2007-03-29 12:43:30 -0500282 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 "3020: Storage subsystem configuration error"},
284 {0x03110B00, 0, 0,
285 "FFF5: Medium error, data unreadable, recommend reassign"},
286 {0x03110C00, 0, 0,
287 "7000: Medium error, data unreadable, do not reassign"},
Brian King933916f2007-03-29 12:43:30 -0500288 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289 "FFF3: Disk media format bad"},
Brian King933916f2007-03-29 12:43:30 -0500290 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291 "3002: Addressed device failed to respond to selection"},
Brian King933916f2007-03-29 12:43:30 -0500292 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293 "3100: Device bus error"},
Brian King933916f2007-03-29 12:43:30 -0500294 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295 "3109: IOA timed out a device command"},
296 {0x04088000, 0, 0,
297 "3120: SCSI bus is not operational"},
Brian King933916f2007-03-29 12:43:30 -0500298 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500299 "4100: Hard device bus fabric error"},
Wayne Boyer5aa3a332010-02-19 13:24:32 -0800300 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
301 "310C: Logical block guard error detected by the device"},
302 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
303 "310C: Logical block reference tag error detected by the device"},
304 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
305 "4170: Scatter list tag / sequence number error"},
306 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
307 "8150: Logical block CRC error on IOA to Host transfer"},
308 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
309 "4170: Logical block sequence number error on IOA to Host transfer"},
310 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
311 "310D: Logical block reference tag error detected by the IOA"},
312 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
313 "310D: Logical block guard error detected by the IOA"},
Brian King933916f2007-03-29 12:43:30 -0500314 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 "9000: IOA reserved area data check"},
Brian King933916f2007-03-29 12:43:30 -0500316 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 "9001: IOA reserved area invalid data pattern"},
Brian King933916f2007-03-29 12:43:30 -0500318 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 "9002: IOA reserved area LRC error"},
Wayne Boyer5aa3a332010-02-19 13:24:32 -0800320 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
321 "Hardware Error, IOA metadata access error"},
Brian King933916f2007-03-29 12:43:30 -0500322 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 "102E: Out of alternate sectors for disk storage"},
Brian King933916f2007-03-29 12:43:30 -0500324 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 "FFF4: Data transfer underlength error"},
Brian King933916f2007-03-29 12:43:30 -0500326 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327 "FFF4: Data transfer overlength error"},
Brian King933916f2007-03-29 12:43:30 -0500328 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329 "3400: Logical unit failure"},
Brian King933916f2007-03-29 12:43:30 -0500330 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 "FFF4: Device microcode is corrupt"},
Brian King933916f2007-03-29 12:43:30 -0500332 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 "8150: PCI bus error"},
334 {0x04430000, 1, 0,
335 "Unsupported device bus message received"},
Brian King933916f2007-03-29 12:43:30 -0500336 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337 "FFF4: Disk device problem"},
Brian King933916f2007-03-29 12:43:30 -0500338 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 "8150: Permanent IOA failure"},
Brian King933916f2007-03-29 12:43:30 -0500340 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 "3010: Disk device returned wrong response to IOA"},
Brian King933916f2007-03-29 12:43:30 -0500342 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 "8151: IOA microcode error"},
344 {0x04448500, 0, 0,
345 "Device bus status error"},
Brian King933916f2007-03-29 12:43:30 -0500346 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 "8157: IOA error requiring IOA reset to recover"},
Brian King35a39692006-09-25 12:39:20 -0500348 {0x04448700, 0, 0,
349 "ATA device status error"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 {0x04490000, 0, 0,
351 "Message reject received from the device"},
Brian King933916f2007-03-29 12:43:30 -0500352 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 "8008: A permanent cache battery pack failure occurred"},
Brian King933916f2007-03-29 12:43:30 -0500354 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355 "9090: Disk unit has been modified after the last known status"},
Brian King933916f2007-03-29 12:43:30 -0500356 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357 "9081: IOA detected device error"},
Brian King933916f2007-03-29 12:43:30 -0500358 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 "9082: IOA detected device error"},
Brian King933916f2007-03-29 12:43:30 -0500360 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 "3110: Device bus error, message or command phase"},
Brian King933916f2007-03-29 12:43:30 -0500362 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
Brian King35a39692006-09-25 12:39:20 -0500363 "3110: SAS Command / Task Management Function failed"},
Brian King933916f2007-03-29 12:43:30 -0500364 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365 "9091: Incorrect hardware configuration change has been detected"},
Brian King933916f2007-03-29 12:43:30 -0500366 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600367 "9073: Invalid multi-adapter configuration"},
Brian King933916f2007-03-29 12:43:30 -0500368 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500369 "4010: Incorrect connection between cascaded expanders"},
Brian King933916f2007-03-29 12:43:30 -0500370 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500371 "4020: Connections exceed IOA design limits"},
Brian King933916f2007-03-29 12:43:30 -0500372 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500373 "4030: Incorrect multipath connection"},
Brian King933916f2007-03-29 12:43:30 -0500374 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500375 "4110: Unsupported enclosure function"},
Brian King933916f2007-03-29 12:43:30 -0500376 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377 "FFF4: Command to logical unit failed"},
378 {0x05240000, 1, 0,
379 "Illegal request, invalid request type or request packet"},
380 {0x05250000, 0, 0,
381 "Illegal request, invalid resource handle"},
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600382 {0x05258000, 0, 0,
383 "Illegal request, commands not allowed to this device"},
384 {0x05258100, 0, 0,
385 "Illegal request, command not allowed to a secondary adapter"},
Wayne Boyer5aa3a332010-02-19 13:24:32 -0800386 {0x05258200, 0, 0,
387 "Illegal request, command not allowed to a non-optimized resource"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 {0x05260000, 0, 0,
389 "Illegal request, invalid field in parameter list"},
390 {0x05260100, 0, 0,
391 "Illegal request, parameter not supported"},
392 {0x05260200, 0, 0,
393 "Illegal request, parameter value invalid"},
394 {0x052C0000, 0, 0,
395 "Illegal request, command sequence error"},
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600396 {0x052C8000, 1, 0,
397 "Illegal request, dual adapter support not enabled"},
Brian King933916f2007-03-29 12:43:30 -0500398 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 "9031: Array protection temporarily suspended, protection resuming"},
Brian King933916f2007-03-29 12:43:30 -0500400 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 "9040: Array protection temporarily suspended, protection resuming"},
Brian King933916f2007-03-29 12:43:30 -0500402 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500403 "3140: Device bus not ready to ready transition"},
Brian King933916f2007-03-29 12:43:30 -0500404 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 "FFFB: SCSI bus was reset"},
406 {0x06290500, 0, 0,
407 "FFFE: SCSI bus transition to single ended"},
408 {0x06290600, 0, 0,
409 "FFFE: SCSI bus transition to LVD"},
Brian King933916f2007-03-29 12:43:30 -0500410 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 "FFFB: SCSI bus was reset by another initiator"},
Brian King933916f2007-03-29 12:43:30 -0500412 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 "3029: A device replacement has occurred"},
Brian King933916f2007-03-29 12:43:30 -0500414 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 "9051: IOA cache data exists for a missing or failed device"},
Brian King933916f2007-03-29 12:43:30 -0500416 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600417 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
Brian King933916f2007-03-29 12:43:30 -0500418 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419 "9025: Disk unit is not supported at its physical location"},
Brian King933916f2007-03-29 12:43:30 -0500420 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700421 "3020: IOA detected a SCSI bus configuration error"},
Brian King933916f2007-03-29 12:43:30 -0500422 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 "3150: SCSI bus configuration error"},
Brian King933916f2007-03-29 12:43:30 -0500424 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600425 "9074: Asymmetric advanced function disk configuration"},
Brian King933916f2007-03-29 12:43:30 -0500426 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500427 "4040: Incomplete multipath connection between IOA and enclosure"},
Brian King933916f2007-03-29 12:43:30 -0500428 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500429 "4041: Incomplete multipath connection between enclosure and device"},
Brian King933916f2007-03-29 12:43:30 -0500430 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500431 "9075: Incomplete multipath connection between IOA and remote IOA"},
Brian King933916f2007-03-29 12:43:30 -0500432 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500433 "9076: Configuration error, missing remote IOA"},
Brian King933916f2007-03-29 12:43:30 -0500434 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500435 "4050: Enclosure does not support a required multipath function"},
Wayne Boyerb75424f2009-01-28 08:24:50 -0800436 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
437 "4070: Logically bad block written on device"},
Brian King933916f2007-03-29 12:43:30 -0500438 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439 "9041: Array protection temporarily suspended"},
Brian King933916f2007-03-29 12:43:30 -0500440 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 "9042: Corrupt array parity detected on specified device"},
Brian King933916f2007-03-29 12:43:30 -0500442 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 "9030: Array no longer protected due to missing or failed disk unit"},
Brian King933916f2007-03-29 12:43:30 -0500444 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600445 "9071: Link operational transition"},
Brian King933916f2007-03-29 12:43:30 -0500446 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -0600447 "9072: Link not operational transition"},
Brian King933916f2007-03-29 12:43:30 -0500448 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 "9032: Array exposed but still protected"},
Brian Kinge4353402007-03-29 12:43:37 -0500450 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
451 "70DD: Device forced failed by disrupt device command"},
Brian King933916f2007-03-29 12:43:30 -0500452 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500453 "4061: Multipath redundancy level got better"},
Brian King933916f2007-03-29 12:43:30 -0500454 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
Brian King896bbd22006-08-02 14:57:44 -0500455 "4060: Multipath redundancy level got worse"},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456 {0x07270000, 0, 0,
457 "Failure due to other device"},
Brian King933916f2007-03-29 12:43:30 -0500458 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 "9008: IOA does not support functions expected by devices"},
Brian King933916f2007-03-29 12:43:30 -0500460 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 "9010: Cache data associated with attached devices cannot be found"},
Brian King933916f2007-03-29 12:43:30 -0500462 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 "9011: Cache data belongs to devices other than those attached"},
Brian King933916f2007-03-29 12:43:30 -0500464 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 "9020: Array missing 2 or more devices with only 1 device present"},
Brian King933916f2007-03-29 12:43:30 -0500466 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467 "9021: Array missing 2 or more devices with 2 or more devices present"},
Brian King933916f2007-03-29 12:43:30 -0500468 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 "9022: Exposed array is missing a required device"},
Brian King933916f2007-03-29 12:43:30 -0500470 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 "9023: Array member(s) not at required physical locations"},
Brian King933916f2007-03-29 12:43:30 -0500472 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473 "9024: Array not functional due to present hardware configuration"},
Brian King933916f2007-03-29 12:43:30 -0500474 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700475 "9026: Array not functional due to present hardware configuration"},
Brian King933916f2007-03-29 12:43:30 -0500476 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 "9027: Array is missing a device and parity is out of sync"},
Brian King933916f2007-03-29 12:43:30 -0500478 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 "9028: Maximum number of arrays already exist"},
Brian King933916f2007-03-29 12:43:30 -0500480 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481 "9050: Required cache data cannot be located for a disk unit"},
Brian King933916f2007-03-29 12:43:30 -0500482 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 "9052: Cache data exists for a device that has been modified"},
Brian King933916f2007-03-29 12:43:30 -0500484 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485 "9054: IOA resources not available due to previous problems"},
Brian King933916f2007-03-29 12:43:30 -0500486 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487 "9092: Disk unit requires initialization before use"},
Brian King933916f2007-03-29 12:43:30 -0500488 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 "9029: Incorrect hardware configuration change has been detected"},
Brian King933916f2007-03-29 12:43:30 -0500490 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 "9060: One or more disk pairs are missing from an array"},
Brian King933916f2007-03-29 12:43:30 -0500492 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 "9061: One or more disks are missing from an array"},
Brian King933916f2007-03-29 12:43:30 -0500494 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 "9062: One or more disks are missing from an array"},
Brian King933916f2007-03-29 12:43:30 -0500496 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 "9063: Maximum number of functional arrays has been exceeded"},
498 {0x0B260000, 0, 0,
499 "Aborted command, invalid descriptor"},
500 {0x0B5A0000, 0, 0,
501 "Command terminated by host"}
502};
503
504static const struct ipr_ses_table_entry ipr_ses_table[] = {
505 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
507 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
508 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
509 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
510 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
511 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
513 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
515 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
516 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
517 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
518};
519
520/*
521 * Function Prototypes
522 */
523static int ipr_reset_alert(struct ipr_cmnd *);
524static void ipr_process_ccn(struct ipr_cmnd *);
525static void ipr_process_error(struct ipr_cmnd *);
526static void ipr_reset_ioa_job(struct ipr_cmnd *);
527static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
528 enum ipr_shutdown_type);
529
530#ifdef CONFIG_SCSI_IPR_TRACE
531/**
532 * ipr_trc_hook - Add a trace entry to the driver trace
533 * @ipr_cmd: ipr command struct
534 * @type: trace type
535 * @add_data: additional data
536 *
537 * Return value:
538 * none
539 **/
540static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
541 u8 type, u32 add_data)
542{
543 struct ipr_trace_entry *trace_entry;
544 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
545
546 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
547 trace_entry->time = jiffies;
548 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
549 trace_entry->type = type;
Wayne Boyera32c0552010-02-19 13:23:36 -0800550 if (ipr_cmd->ioa_cfg->sis64)
551 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
552 else
553 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
Brian King35a39692006-09-25 12:39:20 -0500554 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
556 trace_entry->u.add_data = add_data;
557}
558#else
559#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
560#endif
561
562/**
563 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
564 * @ipr_cmd: ipr command struct
565 *
566 * Return value:
567 * none
568 **/
569static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
570{
571 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyer96d21f02010-05-10 09:13:27 -0700572 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
573 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
Wayne Boyera32c0552010-02-19 13:23:36 -0800574 dma_addr_t dma_addr = ipr_cmd->dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575
576 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
Wayne Boyera32c0552010-02-19 13:23:36 -0800577 ioarcb->data_transfer_length = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700578 ioarcb->read_data_transfer_length = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -0800579 ioarcb->ioadl_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 ioarcb->read_ioadl_len = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -0800581
Wayne Boyer96d21f02010-05-10 09:13:27 -0700582 if (ipr_cmd->ioa_cfg->sis64) {
Wayne Boyera32c0552010-02-19 13:23:36 -0800583 ioarcb->u.sis64_addr_data.data_ioadl_addr =
584 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
Wayne Boyer96d21f02010-05-10 09:13:27 -0700585 ioasa64->u.gata.status = 0;
586 } else {
Wayne Boyera32c0552010-02-19 13:23:36 -0800587 ioarcb->write_ioadl_addr =
588 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
589 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
Wayne Boyer96d21f02010-05-10 09:13:27 -0700590 ioasa->u.gata.status = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -0800591 }
592
Wayne Boyer96d21f02010-05-10 09:13:27 -0700593 ioasa->hdr.ioasc = 0;
594 ioasa->hdr.residual_data_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 ipr_cmd->scsi_cmd = NULL;
Brian King35a39692006-09-25 12:39:20 -0500596 ipr_cmd->qc = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597 ipr_cmd->sense_buffer[0] = 0;
598 ipr_cmd->dma_use_sg = 0;
599}
600
601/**
602 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
603 * @ipr_cmd: ipr command struct
604 *
605 * Return value:
606 * none
607 **/
608static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
609{
610 ipr_reinit_ipr_cmnd(ipr_cmd);
611 ipr_cmd->u.scratch = 0;
612 ipr_cmd->sibling = NULL;
613 init_timer(&ipr_cmd->timer);
614}
615
616/**
617 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
618 * @ioa_cfg: ioa config struct
619 *
620 * Return value:
621 * pointer to ipr command struct
622 **/
623static
624struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
625{
626 struct ipr_cmnd *ipr_cmd;
627
628 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
629 list_del(&ipr_cmd->queue);
630 ipr_init_ipr_cmnd(ipr_cmd);
631
632 return ipr_cmd;
633}
634
635/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
637 * @ioa_cfg: ioa config struct
638 * @clr_ints: interrupts to clear
639 *
640 * This function masks all interrupts on the adapter, then clears the
641 * interrupts specified in the mask
642 *
643 * Return value:
644 * none
645 **/
646static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
647 u32 clr_ints)
648{
649 volatile u32 int_reg;
650
651 /* Stop new interrupts */
652 ioa_cfg->allow_interrupts = 0;
653
654 /* Set interrupt mask to stop all new interrupts */
Wayne Boyer214777b2010-02-19 13:24:26 -0800655 if (ioa_cfg->sis64)
656 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
657 else
658 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700659
660 /* Clear any pending interrupts */
Wayne Boyer214777b2010-02-19 13:24:26 -0800661 if (ioa_cfg->sis64)
662 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
663 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
665}
666
667/**
668 * ipr_save_pcix_cmd_reg - Save PCI-X command register
669 * @ioa_cfg: ioa config struct
670 *
671 * Return value:
672 * 0 on success / -EIO on failure
673 **/
674static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
675{
676 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
677
Brian King7dce0e12007-01-23 11:25:30 -0600678 if (pcix_cmd_reg == 0)
679 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680
681 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
682 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
683 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
684 return -EIO;
685 }
686
687 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
688 return 0;
689}
690
691/**
692 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
693 * @ioa_cfg: ioa config struct
694 *
695 * Return value:
696 * 0 on success / -EIO on failure
697 **/
698static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
699{
700 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
701
702 if (pcix_cmd_reg) {
703 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
704 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
705 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
706 return -EIO;
707 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 }
709
710 return 0;
711}
712
713/**
Brian King35a39692006-09-25 12:39:20 -0500714 * ipr_sata_eh_done - done function for aborted SATA commands
715 * @ipr_cmd: ipr command struct
716 *
717 * This function is invoked for ops generated to SATA
718 * devices which are being aborted.
719 *
720 * Return value:
721 * none
722 **/
723static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
724{
725 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
726 struct ata_queued_cmd *qc = ipr_cmd->qc;
727 struct ipr_sata_port *sata_port = qc->ap->private_data;
728
729 qc->err_mask |= AC_ERR_OTHER;
730 sata_port->ioasa.status |= ATA_BUSY;
731 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
732 ata_qc_complete(qc);
733}
734
735/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736 * ipr_scsi_eh_done - mid-layer done function for aborted ops
737 * @ipr_cmd: ipr command struct
738 *
739 * This function is invoked by the interrupt handler for
740 * ops generated by the SCSI mid-layer which are being aborted.
741 *
742 * Return value:
743 * none
744 **/
745static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
746{
747 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
748 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
749
750 scsi_cmd->result |= (DID_ERROR << 16);
751
FUJITA Tomonori63015bc2007-05-26 00:26:59 +0900752 scsi_dma_unmap(ipr_cmd->scsi_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 scsi_cmd->scsi_done(scsi_cmd);
754 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
755}
756
757/**
758 * ipr_fail_all_ops - Fails all outstanding ops.
759 * @ioa_cfg: ioa config struct
760 *
761 * This function fails all outstanding ops.
762 *
763 * Return value:
764 * none
765 **/
766static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
767{
768 struct ipr_cmnd *ipr_cmd, *temp;
769
770 ENTER;
771 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
772 list_del(&ipr_cmd->queue);
773
Wayne Boyer96d21f02010-05-10 09:13:27 -0700774 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
775 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776
777 if (ipr_cmd->scsi_cmd)
778 ipr_cmd->done = ipr_scsi_eh_done;
Brian King35a39692006-09-25 12:39:20 -0500779 else if (ipr_cmd->qc)
780 ipr_cmd->done = ipr_sata_eh_done;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781
782 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
783 del_timer(&ipr_cmd->timer);
784 ipr_cmd->done(ipr_cmd);
785 }
786
787 LEAVE;
788}
789
790/**
Wayne Boyera32c0552010-02-19 13:23:36 -0800791 * ipr_send_command - Send driver initiated requests.
792 * @ipr_cmd: ipr command struct
793 *
794 * This function sends a command to the adapter using the correct write call.
795 * In the case of sis64, calculate the ioarcb size required. Then or in the
796 * appropriate bits.
797 *
798 * Return value:
799 * none
800 **/
801static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
802{
803 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
804 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
805
806 if (ioa_cfg->sis64) {
807 /* The default size is 256 bytes */
808 send_dma_addr |= 0x1;
809
810 /* If the number of ioadls * size of ioadl > 128 bytes,
811 then use a 512 byte ioarcb */
812 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
813 send_dma_addr |= 0x4;
814 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
815 } else
816 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
817}
818
819/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700820 * ipr_do_req - Send driver initiated requests.
821 * @ipr_cmd: ipr command struct
822 * @done: done function
823 * @timeout_func: timeout function
824 * @timeout: timeout value
825 *
826 * This function sends the specified command to the adapter with the
827 * timeout given. The done function is invoked on command completion.
828 *
829 * Return value:
830 * none
831 **/
832static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
833 void (*done) (struct ipr_cmnd *),
834 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
835{
836 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
837
838 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
839
840 ipr_cmd->done = done;
841
842 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
843 ipr_cmd->timer.expires = jiffies + timeout;
844 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
845
846 add_timer(&ipr_cmd->timer);
847
848 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
849
850 mb();
Wayne Boyera32c0552010-02-19 13:23:36 -0800851
852 ipr_send_command(ipr_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853}
854
855/**
856 * ipr_internal_cmd_done - Op done function for an internally generated op.
857 * @ipr_cmd: ipr command struct
858 *
859 * This function is the op done function for an internally generated,
860 * blocking op. It simply wakes the sleeping thread.
861 *
862 * Return value:
863 * none
864 **/
865static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
866{
867 if (ipr_cmd->sibling)
868 ipr_cmd->sibling = NULL;
869 else
870 complete(&ipr_cmd->completion);
871}
872
873/**
Wayne Boyera32c0552010-02-19 13:23:36 -0800874 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
875 * @ipr_cmd: ipr command struct
876 * @dma_addr: dma address
877 * @len: transfer length
878 * @flags: ioadl flag value
879 *
880 * This function initializes an ioadl in the case where there is only a single
881 * descriptor.
882 *
883 * Return value:
884 * nothing
885 **/
886static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
887 u32 len, int flags)
888{
889 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
890 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
891
892 ipr_cmd->dma_use_sg = 1;
893
894 if (ipr_cmd->ioa_cfg->sis64) {
895 ioadl64->flags = cpu_to_be32(flags);
896 ioadl64->data_len = cpu_to_be32(len);
897 ioadl64->address = cpu_to_be64(dma_addr);
898
899 ipr_cmd->ioarcb.ioadl_len =
900 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
901 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
902 } else {
903 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
904 ioadl->address = cpu_to_be32(dma_addr);
905
906 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
907 ipr_cmd->ioarcb.read_ioadl_len =
908 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
909 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
910 } else {
911 ipr_cmd->ioarcb.ioadl_len =
912 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
913 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
914 }
915 }
916}
917
918/**
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919 * ipr_send_blocking_cmd - Send command and sleep on its completion.
920 * @ipr_cmd: ipr command struct
921 * @timeout_func: function to invoke if command times out
922 * @timeout: timeout
923 *
924 * Return value:
925 * none
926 **/
927static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
928 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
929 u32 timeout)
930{
931 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
932
933 init_completion(&ipr_cmd->completion);
934 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
935
936 spin_unlock_irq(ioa_cfg->host->host_lock);
937 wait_for_completion(&ipr_cmd->completion);
938 spin_lock_irq(ioa_cfg->host->host_lock);
939}
940
941/**
942 * ipr_send_hcam - Send an HCAM to the adapter.
943 * @ioa_cfg: ioa config struct
944 * @type: HCAM type
945 * @hostrcb: hostrcb struct
946 *
947 * This function will send a Host Controlled Async command to the adapter.
948 * If HCAMs are currently not allowed to be issued to the adapter, it will
949 * place the hostrcb on the free queue.
950 *
951 * Return value:
952 * none
953 **/
954static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
955 struct ipr_hostrcb *hostrcb)
956{
957 struct ipr_cmnd *ipr_cmd;
958 struct ipr_ioarcb *ioarcb;
959
960 if (ioa_cfg->allow_cmds) {
961 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
962 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
963 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
964
965 ipr_cmd->u.hostrcb = hostrcb;
966 ioarcb = &ipr_cmd->ioarcb;
967
968 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
969 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
970 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
971 ioarcb->cmd_pkt.cdb[1] = type;
972 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
973 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
974
Wayne Boyera32c0552010-02-19 13:23:36 -0800975 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
976 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700977
978 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
979 ipr_cmd->done = ipr_process_ccn;
980 else
981 ipr_cmd->done = ipr_process_error;
982
983 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
984
985 mb();
Wayne Boyera32c0552010-02-19 13:23:36 -0800986
987 ipr_send_command(ipr_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700988 } else {
989 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
990 }
991}
992
993/**
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -0800994 * ipr_update_ata_class - Update the ata class in the resource entry
Linus Torvalds1da177e2005-04-16 15:20:36 -0700995 * @res: resource entry struct
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -0800996 * @proto: cfgte device bus protocol value
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997 *
998 * Return value:
999 * none
1000 **/
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001001static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002{
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001003 switch(proto) {
1004 case IPR_PROTO_SATA:
1005 case IPR_PROTO_SAS_STP:
1006 res->ata_class = ATA_DEV_ATA;
1007 break;
1008 case IPR_PROTO_SATA_ATAPI:
1009 case IPR_PROTO_SAS_STP_ATAPI:
1010 res->ata_class = ATA_DEV_ATAPI;
1011 break;
1012 default:
1013 res->ata_class = ATA_DEV_UNKNOWN;
1014 break;
1015 };
1016}
1017
1018/**
1019 * ipr_init_res_entry - Initialize a resource entry struct.
1020 * @res: resource entry struct
1021 * @cfgtew: config table entry wrapper struct
1022 *
1023 * Return value:
1024 * none
1025 **/
1026static void ipr_init_res_entry(struct ipr_resource_entry *res,
1027 struct ipr_config_table_entry_wrapper *cfgtew)
1028{
1029 int found = 0;
1030 unsigned int proto;
1031 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1032 struct ipr_resource_entry *gscsi_res = NULL;
1033
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06001034 res->needs_sync_complete = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 res->in_erp = 0;
1036 res->add_to_ml = 0;
1037 res->del_from_ml = 0;
1038 res->resetting_device = 0;
1039 res->sdev = NULL;
Brian King35a39692006-09-25 12:39:20 -05001040 res->sata_port = NULL;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001041
1042 if (ioa_cfg->sis64) {
1043 proto = cfgtew->u.cfgte64->proto;
1044 res->res_flags = cfgtew->u.cfgte64->res_flags;
1045 res->qmodel = IPR_QUEUEING_MODEL64(res);
Wayne Boyer438b0332010-05-10 09:13:00 -07001046 res->type = cfgtew->u.cfgte64->res_type;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001047
1048 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1049 sizeof(res->res_path));
1050
1051 res->bus = 0;
Wayne Boyer0cb992e2010-11-04 09:35:58 -07001052 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1053 sizeof(res->dev_lun.scsi_lun));
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001054 res->lun = scsilun_to_int(&res->dev_lun);
1055
1056 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1057 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1058 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1059 found = 1;
1060 res->target = gscsi_res->target;
1061 break;
1062 }
1063 }
1064 if (!found) {
1065 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1066 ioa_cfg->max_devs_supported);
1067 set_bit(res->target, ioa_cfg->target_ids);
1068 }
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001069 } 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;
Wayne Boyer46d74562010-08-11 07:15:17 -07001099 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001100 }
1101
1102 ipr_update_ata_class(res, proto);
1103}
1104
1105/**
1106 * ipr_is_same_device - Determine if two devices are the same.
1107 * @res: resource entry struct
1108 * @cfgtew: config table entry wrapper struct
1109 *
1110 * Return value:
1111 * 1 if the devices are the same / 0 otherwise
1112 **/
1113static int ipr_is_same_device(struct ipr_resource_entry *res,
1114 struct ipr_config_table_entry_wrapper *cfgtew)
1115{
1116 if (res->ioa_cfg->sis64) {
1117 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1118 sizeof(cfgtew->u.cfgte64->dev_id)) &&
Wayne Boyer0cb992e2010-11-04 09:35:58 -07001119 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001120 sizeof(cfgtew->u.cfgte64->lun))) {
1121 return 1;
1122 }
1123 } else {
1124 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1125 res->target == cfgtew->u.cfgte->res_addr.target &&
1126 res->lun == cfgtew->u.cfgte->res_addr.lun)
1127 return 1;
1128 }
1129
1130 return 0;
1131}
1132
1133/**
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001134 * ipr_format_res_path - Format the resource path for printing.
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001135 * @res_path: resource path
1136 * @buf: buffer
1137 *
1138 * Return value:
1139 * pointer to buffer
1140 **/
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001141static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001142{
1143 int i;
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001144 char *p = buffer;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001145
Wayne Boyer46d74562010-08-11 07:15:17 -07001146 *p = '\0';
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001147 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1148 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1149 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001150
1151 return buffer;
1152}
1153
1154/**
1155 * ipr_update_res_entry - Update the resource entry.
1156 * @res: resource entry struct
1157 * @cfgtew: config table entry wrapper struct
1158 *
1159 * Return value:
1160 * none
1161 **/
1162static void ipr_update_res_entry(struct ipr_resource_entry *res,
1163 struct ipr_config_table_entry_wrapper *cfgtew)
1164{
1165 char buffer[IPR_MAX_RES_PATH_LENGTH];
1166 unsigned int proto;
1167 int new_path = 0;
1168
1169 if (res->ioa_cfg->sis64) {
1170 res->flags = cfgtew->u.cfgte64->flags;
1171 res->res_flags = cfgtew->u.cfgte64->res_flags;
Wayne Boyer75576bb2010-07-14 10:50:14 -07001172 res->type = cfgtew->u.cfgte64->res_type;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001173
1174 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1175 sizeof(struct ipr_std_inq_data));
1176
1177 res->qmodel = IPR_QUEUEING_MODEL64(res);
1178 proto = cfgtew->u.cfgte64->proto;
1179 res->res_handle = cfgtew->u.cfgte64->res_handle;
1180 res->dev_id = cfgtew->u.cfgte64->dev_id;
1181
1182 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1183 sizeof(res->dev_lun.scsi_lun));
1184
1185 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1186 sizeof(res->res_path))) {
1187 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1188 sizeof(res->res_path));
1189 new_path = 1;
1190 }
1191
1192 if (res->sdev && new_path)
1193 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001194 ipr_format_res_path(res->res_path, buffer,
1195 sizeof(buffer)));
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001196 } else {
1197 res->flags = cfgtew->u.cfgte->flags;
1198 if (res->flags & IPR_IS_IOA_RESOURCE)
1199 res->type = IPR_RES_TYPE_IOAFP;
1200 else
1201 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1202
1203 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1204 sizeof(struct ipr_std_inq_data));
1205
1206 res->qmodel = IPR_QUEUEING_MODEL(res);
1207 proto = cfgtew->u.cfgte->proto;
1208 res->res_handle = cfgtew->u.cfgte->res_handle;
1209 }
1210
1211 ipr_update_ata_class(res, proto);
1212}
1213
1214/**
1215 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1216 * for the resource.
1217 * @res: resource entry struct
1218 * @cfgtew: config table entry wrapper struct
1219 *
1220 * Return value:
1221 * none
1222 **/
1223static void ipr_clear_res_target(struct ipr_resource_entry *res)
1224{
1225 struct ipr_resource_entry *gscsi_res = NULL;
1226 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1227
1228 if (!ioa_cfg->sis64)
1229 return;
1230
1231 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1232 clear_bit(res->target, ioa_cfg->array_ids);
1233 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1234 clear_bit(res->target, ioa_cfg->vset_ids);
1235 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1236 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1237 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1238 return;
1239 clear_bit(res->target, ioa_cfg->target_ids);
1240
1241 } else if (res->bus == 0)
1242 clear_bit(res->target, ioa_cfg->target_ids);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243}
1244
1245/**
1246 * ipr_handle_config_change - Handle a config change from the adapter
1247 * @ioa_cfg: ioa config struct
1248 * @hostrcb: hostrcb
1249 *
1250 * Return value:
1251 * none
1252 **/
1253static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001254 struct ipr_hostrcb *hostrcb)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255{
1256 struct ipr_resource_entry *res = NULL;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001257 struct ipr_config_table_entry_wrapper cfgtew;
1258 __be32 cc_res_handle;
1259
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 u32 is_ndn = 1;
1261
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001262 if (ioa_cfg->sis64) {
1263 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1264 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1265 } else {
1266 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1267 cc_res_handle = cfgtew.u.cfgte->res_handle;
1268 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269
1270 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001271 if (res->res_handle == cc_res_handle) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272 is_ndn = 0;
1273 break;
1274 }
1275 }
1276
1277 if (is_ndn) {
1278 if (list_empty(&ioa_cfg->free_res_q)) {
1279 ipr_send_hcam(ioa_cfg,
1280 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1281 hostrcb);
1282 return;
1283 }
1284
1285 res = list_entry(ioa_cfg->free_res_q.next,
1286 struct ipr_resource_entry, queue);
1287
1288 list_del(&res->queue);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001289 ipr_init_res_entry(res, &cfgtew);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001290 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1291 }
1292
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001293 ipr_update_res_entry(res, &cfgtew);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001294
1295 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1296 if (res->sdev) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297 res->del_from_ml = 1;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001298 res->res_handle = IPR_INVALID_RES_HANDLE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001299 if (ioa_cfg->allow_ml_add_del)
1300 schedule_work(&ioa_cfg->work_q);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001301 } else {
1302 ipr_clear_res_target(res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08001304 }
Kleber Sacilotto de Souza5767a1c2011-02-14 20:19:31 -02001305 } else if (!res->sdev || res->del_from_ml) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306 res->add_to_ml = 1;
1307 if (ioa_cfg->allow_ml_add_del)
1308 schedule_work(&ioa_cfg->work_q);
1309 }
1310
1311 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1312}
1313
1314/**
1315 * ipr_process_ccn - Op done function for a CCN.
1316 * @ipr_cmd: ipr command struct
1317 *
1318 * This function is the op done function for a configuration
1319 * change notification host controlled async from the adapter.
1320 *
1321 * Return value:
1322 * none
1323 **/
1324static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1325{
1326 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1327 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
Wayne Boyer96d21f02010-05-10 09:13:27 -07001328 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329
1330 list_del(&hostrcb->queue);
1331 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1332
1333 if (ioasc) {
1334 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1335 dev_err(&ioa_cfg->pdev->dev,
1336 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1337
1338 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1339 } else {
1340 ipr_handle_config_change(ioa_cfg, hostrcb);
1341 }
1342}
1343
1344/**
Brian King8cf093e2007-04-26 16:00:14 -05001345 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1346 * @i: index into buffer
1347 * @buf: string to modify
1348 *
1349 * This function will strip all trailing whitespace, pad the end
1350 * of the string with a single space, and NULL terminate the string.
1351 *
1352 * Return value:
1353 * new length of string
1354 **/
1355static int strip_and_pad_whitespace(int i, char *buf)
1356{
1357 while (i && buf[i] == ' ')
1358 i--;
1359 buf[i+1] = ' ';
1360 buf[i+2] = '\0';
1361 return i + 2;
1362}
1363
1364/**
1365 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1366 * @prefix: string to print at start of printk
1367 * @hostrcb: hostrcb pointer
1368 * @vpd: vendor/product id/sn struct
1369 *
1370 * Return value:
1371 * none
1372 **/
1373static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1374 struct ipr_vpd *vpd)
1375{
1376 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1377 int i = 0;
1378
1379 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1380 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1381
1382 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1383 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1384
1385 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1386 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1387
1388 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1389}
1390
1391/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001392 * ipr_log_vpd - Log the passed VPD to the error log.
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001393 * @vpd: vendor/product id/sn struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394 *
1395 * Return value:
1396 * none
1397 **/
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001398static void ipr_log_vpd(struct ipr_vpd *vpd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399{
1400 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1401 + IPR_SERIAL_NUM_LEN];
1402
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001403 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1404 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001405 IPR_PROD_ID_LEN);
1406 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1407 ipr_err("Vendor/Product ID: %s\n", buffer);
1408
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001409 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001410 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1411 ipr_err(" Serial Number: %s\n", buffer);
1412}
1413
1414/**
Brian King8cf093e2007-04-26 16:00:14 -05001415 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1416 * @prefix: string to print at start of printk
1417 * @hostrcb: hostrcb pointer
1418 * @vpd: vendor/product id/sn/wwn struct
1419 *
1420 * Return value:
1421 * none
1422 **/
1423static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1424 struct ipr_ext_vpd *vpd)
1425{
1426 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1427 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1428 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1429}
1430
1431/**
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001432 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1433 * @vpd: vendor/product id/sn/wwn struct
1434 *
1435 * Return value:
1436 * none
1437 **/
1438static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1439{
1440 ipr_log_vpd(&vpd->vpd);
1441 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1442 be32_to_cpu(vpd->wwid[1]));
1443}
1444
1445/**
1446 * ipr_log_enhanced_cache_error - Log a cache error.
1447 * @ioa_cfg: ioa config struct
1448 * @hostrcb: hostrcb struct
1449 *
1450 * Return value:
1451 * none
1452 **/
1453static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1454 struct ipr_hostrcb *hostrcb)
1455{
Wayne Boyer4565e372010-02-19 13:24:07 -08001456 struct ipr_hostrcb_type_12_error *error;
1457
1458 if (ioa_cfg->sis64)
1459 error = &hostrcb->hcam.u.error64.u.type_12_error;
1460 else
1461 error = &hostrcb->hcam.u.error.u.type_12_error;
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001462
1463 ipr_err("-----Current Configuration-----\n");
1464 ipr_err("Cache Directory Card Information:\n");
1465 ipr_log_ext_vpd(&error->ioa_vpd);
1466 ipr_err("Adapter Card Information:\n");
1467 ipr_log_ext_vpd(&error->cfc_vpd);
1468
1469 ipr_err("-----Expected Configuration-----\n");
1470 ipr_err("Cache Directory Card Information:\n");
1471 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1472 ipr_err("Adapter Card Information:\n");
1473 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1474
1475 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1476 be32_to_cpu(error->ioa_data[0]),
1477 be32_to_cpu(error->ioa_data[1]),
1478 be32_to_cpu(error->ioa_data[2]));
1479}
1480
1481/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001482 * ipr_log_cache_error - Log a cache error.
1483 * @ioa_cfg: ioa config struct
1484 * @hostrcb: hostrcb struct
1485 *
1486 * Return value:
1487 * none
1488 **/
1489static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1490 struct ipr_hostrcb *hostrcb)
1491{
1492 struct ipr_hostrcb_type_02_error *error =
1493 &hostrcb->hcam.u.error.u.type_02_error;
1494
1495 ipr_err("-----Current Configuration-----\n");
1496 ipr_err("Cache Directory Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001497 ipr_log_vpd(&error->ioa_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001498 ipr_err("Adapter Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001499 ipr_log_vpd(&error->cfc_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001500
1501 ipr_err("-----Expected Configuration-----\n");
1502 ipr_err("Cache Directory Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001503 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504 ipr_err("Adapter Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001505 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001506
1507 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1508 be32_to_cpu(error->ioa_data[0]),
1509 be32_to_cpu(error->ioa_data[1]),
1510 be32_to_cpu(error->ioa_data[2]));
1511}
1512
1513/**
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001514 * ipr_log_enhanced_config_error - Log a configuration error.
1515 * @ioa_cfg: ioa config struct
1516 * @hostrcb: hostrcb struct
1517 *
1518 * Return value:
1519 * none
1520 **/
1521static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1522 struct ipr_hostrcb *hostrcb)
1523{
1524 int errors_logged, i;
1525 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1526 struct ipr_hostrcb_type_13_error *error;
1527
1528 error = &hostrcb->hcam.u.error.u.type_13_error;
1529 errors_logged = be32_to_cpu(error->errors_logged);
1530
1531 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1532 be32_to_cpu(error->errors_detected), errors_logged);
1533
1534 dev_entry = error->dev;
1535
1536 for (i = 0; i < errors_logged; i++, dev_entry++) {
1537 ipr_err_separator;
1538
1539 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1540 ipr_log_ext_vpd(&dev_entry->vpd);
1541
1542 ipr_err("-----New Device Information-----\n");
1543 ipr_log_ext_vpd(&dev_entry->new_vpd);
1544
1545 ipr_err("Cache Directory Card Information:\n");
1546 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1547
1548 ipr_err("Adapter Card Information:\n");
1549 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1550 }
1551}
1552
1553/**
Wayne Boyer4565e372010-02-19 13:24:07 -08001554 * ipr_log_sis64_config_error - Log a device error.
1555 * @ioa_cfg: ioa config struct
1556 * @hostrcb: hostrcb struct
1557 *
1558 * Return value:
1559 * none
1560 **/
1561static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1562 struct ipr_hostrcb *hostrcb)
1563{
1564 int errors_logged, i;
1565 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1566 struct ipr_hostrcb_type_23_error *error;
1567 char buffer[IPR_MAX_RES_PATH_LENGTH];
1568
1569 error = &hostrcb->hcam.u.error64.u.type_23_error;
1570 errors_logged = be32_to_cpu(error->errors_logged);
1571
1572 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1573 be32_to_cpu(error->errors_detected), errors_logged);
1574
1575 dev_entry = error->dev;
1576
1577 for (i = 0; i < errors_logged; i++, dev_entry++) {
1578 ipr_err_separator;
1579
1580 ipr_err("Device %d : %s", i + 1,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001581 ipr_format_res_path(dev_entry->res_path, buffer,
1582 sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08001583 ipr_log_ext_vpd(&dev_entry->vpd);
1584
1585 ipr_err("-----New Device Information-----\n");
1586 ipr_log_ext_vpd(&dev_entry->new_vpd);
1587
1588 ipr_err("Cache Directory Card Information:\n");
1589 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1590
1591 ipr_err("Adapter Card Information:\n");
1592 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1593 }
1594}
1595
1596/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001597 * ipr_log_config_error - Log a configuration error.
1598 * @ioa_cfg: ioa config struct
1599 * @hostrcb: hostrcb struct
1600 *
1601 * Return value:
1602 * none
1603 **/
1604static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1605 struct ipr_hostrcb *hostrcb)
1606{
1607 int errors_logged, i;
1608 struct ipr_hostrcb_device_data_entry *dev_entry;
1609 struct ipr_hostrcb_type_03_error *error;
1610
1611 error = &hostrcb->hcam.u.error.u.type_03_error;
1612 errors_logged = be32_to_cpu(error->errors_logged);
1613
1614 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1615 be32_to_cpu(error->errors_detected), errors_logged);
1616
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001617 dev_entry = error->dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001618
1619 for (i = 0; i < errors_logged; i++, dev_entry++) {
1620 ipr_err_separator;
1621
brking@us.ibm.comfa15b1f2005-11-01 17:00:27 -06001622 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001623 ipr_log_vpd(&dev_entry->vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001624
1625 ipr_err("-----New Device Information-----\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001626 ipr_log_vpd(&dev_entry->new_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001627
1628 ipr_err("Cache Directory Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001629 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001630
1631 ipr_err("Adapter Card Information:\n");
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001632 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001633
1634 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1635 be32_to_cpu(dev_entry->ioa_data[0]),
1636 be32_to_cpu(dev_entry->ioa_data[1]),
1637 be32_to_cpu(dev_entry->ioa_data[2]),
1638 be32_to_cpu(dev_entry->ioa_data[3]),
1639 be32_to_cpu(dev_entry->ioa_data[4]));
1640 }
1641}
1642
1643/**
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001644 * ipr_log_enhanced_array_error - Log an array configuration error.
1645 * @ioa_cfg: ioa config struct
1646 * @hostrcb: hostrcb struct
1647 *
1648 * Return value:
1649 * none
1650 **/
1651static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1652 struct ipr_hostrcb *hostrcb)
1653{
1654 int i, num_entries;
1655 struct ipr_hostrcb_type_14_error *error;
1656 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1657 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1658
1659 error = &hostrcb->hcam.u.error.u.type_14_error;
1660
1661 ipr_err_separator;
1662
1663 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1664 error->protection_level,
1665 ioa_cfg->host->host_no,
1666 error->last_func_vset_res_addr.bus,
1667 error->last_func_vset_res_addr.target,
1668 error->last_func_vset_res_addr.lun);
1669
1670 ipr_err_separator;
1671
1672 array_entry = error->array_member;
1673 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
Wayne Boyer72620262010-09-27 10:45:28 -07001674 ARRAY_SIZE(error->array_member));
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001675
1676 for (i = 0; i < num_entries; i++, array_entry++) {
1677 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1678 continue;
1679
1680 if (be32_to_cpu(error->exposed_mode_adn) == i)
1681 ipr_err("Exposed Array Member %d:\n", i);
1682 else
1683 ipr_err("Array Member %d:\n", i);
1684
1685 ipr_log_ext_vpd(&array_entry->vpd);
1686 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1687 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1688 "Expected Location");
1689
1690 ipr_err_separator;
1691 }
1692}
1693
1694/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07001695 * ipr_log_array_error - Log an array configuration error.
1696 * @ioa_cfg: ioa config struct
1697 * @hostrcb: hostrcb struct
1698 *
1699 * Return value:
1700 * none
1701 **/
1702static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1703 struct ipr_hostrcb *hostrcb)
1704{
1705 int i;
1706 struct ipr_hostrcb_type_04_error *error;
1707 struct ipr_hostrcb_array_data_entry *array_entry;
1708 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1709
1710 error = &hostrcb->hcam.u.error.u.type_04_error;
1711
1712 ipr_err_separator;
1713
1714 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1715 error->protection_level,
1716 ioa_cfg->host->host_no,
1717 error->last_func_vset_res_addr.bus,
1718 error->last_func_vset_res_addr.target,
1719 error->last_func_vset_res_addr.lun);
1720
1721 ipr_err_separator;
1722
1723 array_entry = error->array_member;
1724
1725 for (i = 0; i < 18; i++) {
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001726 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727 continue;
1728
brking@us.ibm.comfa15b1f2005-11-01 17:00:27 -06001729 if (be32_to_cpu(error->exposed_mode_adn) == i)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730 ipr_err("Exposed Array Member %d:\n", i);
brking@us.ibm.comfa15b1f2005-11-01 17:00:27 -06001731 else
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732 ipr_err("Array Member %d:\n", i);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733
brking@us.ibm.comcfc32132005-11-01 17:00:18 -06001734 ipr_log_vpd(&array_entry->vpd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735
brking@us.ibm.comfa15b1f2005-11-01 17:00:27 -06001736 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1737 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1738 "Expected Location");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001739
1740 ipr_err_separator;
1741
1742 if (i == 9)
1743 array_entry = error->array_member2;
1744 else
1745 array_entry++;
1746 }
1747}
1748
1749/**
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001750 * ipr_log_hex_data - Log additional hex IOA error data.
Brian Kingac719ab2006-11-21 10:28:42 -06001751 * @ioa_cfg: ioa config struct
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001752 * @data: IOA error data
1753 * @len: data length
1754 *
1755 * Return value:
1756 * none
1757 **/
Brian Kingac719ab2006-11-21 10:28:42 -06001758static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001759{
1760 int i;
1761
1762 if (len == 0)
1763 return;
1764
Brian Kingac719ab2006-11-21 10:28:42 -06001765 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1766 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1767
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001768 for (i = 0; i < len / 4; i += 4) {
1769 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1770 be32_to_cpu(data[i]),
1771 be32_to_cpu(data[i+1]),
1772 be32_to_cpu(data[i+2]),
1773 be32_to_cpu(data[i+3]));
1774 }
1775}
1776
1777/**
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001778 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1779 * @ioa_cfg: ioa config struct
1780 * @hostrcb: hostrcb struct
1781 *
1782 * Return value:
1783 * none
1784 **/
1785static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1786 struct ipr_hostrcb *hostrcb)
1787{
1788 struct ipr_hostrcb_type_17_error *error;
1789
Wayne Boyer4565e372010-02-19 13:24:07 -08001790 if (ioa_cfg->sis64)
1791 error = &hostrcb->hcam.u.error64.u.type_17_error;
1792 else
1793 error = &hostrcb->hcam.u.error.u.type_17_error;
1794
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001795 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
KOSAKI Motohiroca54cb82009-12-14 18:01:15 -08001796 strim(error->failure_reason);
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001797
Brian King8cf093e2007-04-26 16:00:14 -05001798 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1799 be32_to_cpu(hostrcb->hcam.u.error.prc));
1800 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
Brian Kingac719ab2006-11-21 10:28:42 -06001801 ipr_log_hex_data(ioa_cfg, error->data,
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06001802 be32_to_cpu(hostrcb->hcam.length) -
1803 (offsetof(struct ipr_hostrcb_error, u) +
1804 offsetof(struct ipr_hostrcb_type_17_error, data)));
1805}
1806
1807/**
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001808 * ipr_log_dual_ioa_error - Log a dual adapter error.
1809 * @ioa_cfg: ioa config struct
1810 * @hostrcb: hostrcb struct
1811 *
1812 * Return value:
1813 * none
1814 **/
1815static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1816 struct ipr_hostrcb *hostrcb)
1817{
1818 struct ipr_hostrcb_type_07_error *error;
1819
1820 error = &hostrcb->hcam.u.error.u.type_07_error;
1821 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
KOSAKI Motohiroca54cb82009-12-14 18:01:15 -08001822 strim(error->failure_reason);
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001823
Brian King8cf093e2007-04-26 16:00:14 -05001824 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1825 be32_to_cpu(hostrcb->hcam.u.error.prc));
1826 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
Brian Kingac719ab2006-11-21 10:28:42 -06001827 ipr_log_hex_data(ioa_cfg, error->data,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06001828 be32_to_cpu(hostrcb->hcam.length) -
1829 (offsetof(struct ipr_hostrcb_error, u) +
1830 offsetof(struct ipr_hostrcb_type_07_error, data)));
1831}
1832
Brian King49dc6a12006-11-21 10:28:35 -06001833static const struct {
1834 u8 active;
1835 char *desc;
1836} path_active_desc[] = {
1837 { IPR_PATH_NO_INFO, "Path" },
1838 { IPR_PATH_ACTIVE, "Active path" },
1839 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1840};
1841
1842static const struct {
1843 u8 state;
1844 char *desc;
1845} path_state_desc[] = {
1846 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1847 { IPR_PATH_HEALTHY, "is healthy" },
1848 { IPR_PATH_DEGRADED, "is degraded" },
1849 { IPR_PATH_FAILED, "is failed" }
1850};
1851
1852/**
1853 * ipr_log_fabric_path - Log a fabric path error
1854 * @hostrcb: hostrcb struct
1855 * @fabric: fabric descriptor
1856 *
1857 * Return value:
1858 * none
1859 **/
1860static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1861 struct ipr_hostrcb_fabric_desc *fabric)
1862{
1863 int i, j;
1864 u8 path_state = fabric->path_state;
1865 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1866 u8 state = path_state & IPR_PATH_STATE_MASK;
1867
1868 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1869 if (path_active_desc[i].active != active)
1870 continue;
1871
1872 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1873 if (path_state_desc[j].state != state)
1874 continue;
1875
1876 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1877 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1878 path_active_desc[i].desc, path_state_desc[j].desc,
1879 fabric->ioa_port);
1880 } else if (fabric->cascaded_expander == 0xff) {
1881 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1882 path_active_desc[i].desc, path_state_desc[j].desc,
1883 fabric->ioa_port, fabric->phy);
1884 } else if (fabric->phy == 0xff) {
1885 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1886 path_active_desc[i].desc, path_state_desc[j].desc,
1887 fabric->ioa_port, fabric->cascaded_expander);
1888 } else {
1889 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1890 path_active_desc[i].desc, path_state_desc[j].desc,
1891 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1892 }
1893 return;
1894 }
1895 }
1896
1897 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1898 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1899}
1900
Wayne Boyer4565e372010-02-19 13:24:07 -08001901/**
1902 * ipr_log64_fabric_path - Log a fabric path error
1903 * @hostrcb: hostrcb struct
1904 * @fabric: fabric descriptor
1905 *
1906 * Return value:
1907 * none
1908 **/
1909static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1910 struct ipr_hostrcb64_fabric_desc *fabric)
1911{
1912 int i, j;
1913 u8 path_state = fabric->path_state;
1914 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1915 u8 state = path_state & IPR_PATH_STATE_MASK;
1916 char buffer[IPR_MAX_RES_PATH_LENGTH];
1917
1918 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1919 if (path_active_desc[i].active != active)
1920 continue;
1921
1922 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1923 if (path_state_desc[j].state != state)
1924 continue;
1925
1926 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1927 path_active_desc[i].desc, path_state_desc[j].desc,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001928 ipr_format_res_path(fabric->res_path, buffer,
1929 sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08001930 return;
1931 }
1932 }
1933
1934 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07001935 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08001936}
1937
Brian King49dc6a12006-11-21 10:28:35 -06001938static const struct {
1939 u8 type;
1940 char *desc;
1941} path_type_desc[] = {
1942 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1943 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1944 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1945 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1946};
1947
1948static const struct {
1949 u8 status;
1950 char *desc;
1951} path_status_desc[] = {
1952 { IPR_PATH_CFG_NO_PROB, "Functional" },
1953 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1954 { IPR_PATH_CFG_FAILED, "Failed" },
1955 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1956 { IPR_PATH_NOT_DETECTED, "Missing" },
1957 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1958};
1959
1960static const char *link_rate[] = {
1961 "unknown",
1962 "disabled",
1963 "phy reset problem",
1964 "spinup hold",
1965 "port selector",
1966 "unknown",
1967 "unknown",
1968 "unknown",
1969 "1.5Gbps",
1970 "3.0Gbps",
1971 "unknown",
1972 "unknown",
1973 "unknown",
1974 "unknown",
1975 "unknown",
1976 "unknown"
1977};
1978
1979/**
1980 * ipr_log_path_elem - Log a fabric path element.
1981 * @hostrcb: hostrcb struct
1982 * @cfg: fabric path element struct
1983 *
1984 * Return value:
1985 * none
1986 **/
1987static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1988 struct ipr_hostrcb_config_element *cfg)
1989{
1990 int i, j;
1991 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1992 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1993
1994 if (type == IPR_PATH_CFG_NOT_EXIST)
1995 return;
1996
1997 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1998 if (path_type_desc[i].type != type)
1999 continue;
2000
2001 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2002 if (path_status_desc[j].status != status)
2003 continue;
2004
2005 if (type == IPR_PATH_CFG_IOA_PORT) {
2006 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2007 path_status_desc[j].desc, path_type_desc[i].desc,
2008 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2009 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2010 } else {
2011 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2012 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2013 path_status_desc[j].desc, path_type_desc[i].desc,
2014 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2015 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2016 } else if (cfg->cascaded_expander == 0xff) {
2017 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2018 "WWN=%08X%08X\n", path_status_desc[j].desc,
2019 path_type_desc[i].desc, cfg->phy,
2020 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2021 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2022 } else if (cfg->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2024 "WWN=%08X%08X\n", path_status_desc[j].desc,
2025 path_type_desc[i].desc, cfg->cascaded_expander,
2026 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2027 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2028 } else {
2029 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2030 "WWN=%08X%08X\n", path_status_desc[j].desc,
2031 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2032 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2033 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2034 }
2035 }
2036 return;
2037 }
2038 }
2039
2040 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2041 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2042 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2043 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2044}
2045
2046/**
Wayne Boyer4565e372010-02-19 13:24:07 -08002047 * ipr_log64_path_elem - Log a fabric path element.
2048 * @hostrcb: hostrcb struct
2049 * @cfg: fabric path element struct
2050 *
2051 * Return value:
2052 * none
2053 **/
2054static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2055 struct ipr_hostrcb64_config_element *cfg)
2056{
2057 int i, j;
2058 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2059 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2060 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2061 char buffer[IPR_MAX_RES_PATH_LENGTH];
2062
2063 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2064 return;
2065
2066 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2067 if (path_type_desc[i].type != type)
2068 continue;
2069
2070 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2071 if (path_status_desc[j].status != status)
2072 continue;
2073
2074 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2075 path_status_desc[j].desc, path_type_desc[i].desc,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002076 ipr_format_res_path(cfg->res_path, buffer,
2077 sizeof(buffer)),
Wayne Boyer4565e372010-02-19 13:24:07 -08002078 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2079 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2080 return;
2081 }
2082 }
2083 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2084 "WWN=%08X%08X\n", cfg->type_status,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002085 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
Wayne Boyer4565e372010-02-19 13:24:07 -08002086 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2087 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2088}
2089
2090/**
Brian King49dc6a12006-11-21 10:28:35 -06002091 * ipr_log_fabric_error - Log a fabric error.
2092 * @ioa_cfg: ioa config struct
2093 * @hostrcb: hostrcb struct
2094 *
2095 * Return value:
2096 * none
2097 **/
2098static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2099 struct ipr_hostrcb *hostrcb)
2100{
2101 struct ipr_hostrcb_type_20_error *error;
2102 struct ipr_hostrcb_fabric_desc *fabric;
2103 struct ipr_hostrcb_config_element *cfg;
2104 int i, add_len;
2105
2106 error = &hostrcb->hcam.u.error.u.type_20_error;
2107 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2108 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2109
2110 add_len = be32_to_cpu(hostrcb->hcam.length) -
2111 (offsetof(struct ipr_hostrcb_error, u) +
2112 offsetof(struct ipr_hostrcb_type_20_error, desc));
2113
2114 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2115 ipr_log_fabric_path(hostrcb, fabric);
2116 for_each_fabric_cfg(fabric, cfg)
2117 ipr_log_path_elem(hostrcb, cfg);
2118
2119 add_len -= be16_to_cpu(fabric->length);
2120 fabric = (struct ipr_hostrcb_fabric_desc *)
2121 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2122 }
2123
Brian Kingac719ab2006-11-21 10:28:42 -06002124 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
Brian King49dc6a12006-11-21 10:28:35 -06002125}
2126
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06002127/**
Wayne Boyer4565e372010-02-19 13:24:07 -08002128 * ipr_log_sis64_array_error - Log a sis64 array error.
2129 * @ioa_cfg: ioa config struct
2130 * @hostrcb: hostrcb struct
2131 *
2132 * Return value:
2133 * none
2134 **/
2135static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2136 struct ipr_hostrcb *hostrcb)
2137{
2138 int i, num_entries;
2139 struct ipr_hostrcb_type_24_error *error;
2140 struct ipr_hostrcb64_array_data_entry *array_entry;
2141 char buffer[IPR_MAX_RES_PATH_LENGTH];
2142 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2143
2144 error = &hostrcb->hcam.u.error64.u.type_24_error;
2145
2146 ipr_err_separator;
2147
2148 ipr_err("RAID %s Array Configuration: %s\n",
2149 error->protection_level,
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002150 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08002151
2152 ipr_err_separator;
2153
2154 array_entry = error->array_member;
Wayne Boyer72620262010-09-27 10:45:28 -07002155 num_entries = min_t(u32, error->num_entries,
2156 ARRAY_SIZE(error->array_member));
Wayne Boyer4565e372010-02-19 13:24:07 -08002157
2158 for (i = 0; i < num_entries; i++, array_entry++) {
2159
2160 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2161 continue;
2162
2163 if (error->exposed_mode_adn == i)
2164 ipr_err("Exposed Array Member %d:\n", i);
2165 else
2166 ipr_err("Array Member %d:\n", i);
2167
2168 ipr_err("Array Member %d:\n", i);
2169 ipr_log_ext_vpd(&array_entry->vpd);
Wayne Boyer72620262010-09-27 10:45:28 -07002170 ipr_err("Current Location: %s\n",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002171 ipr_format_res_path(array_entry->res_path, buffer,
2172 sizeof(buffer)));
Wayne Boyer72620262010-09-27 10:45:28 -07002173 ipr_err("Expected Location: %s\n",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07002174 ipr_format_res_path(array_entry->expected_res_path,
2175 buffer, sizeof(buffer)));
Wayne Boyer4565e372010-02-19 13:24:07 -08002176
2177 ipr_err_separator;
2178 }
2179}
2180
2181/**
2182 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2183 * @ioa_cfg: ioa config struct
2184 * @hostrcb: hostrcb struct
2185 *
2186 * Return value:
2187 * none
2188 **/
2189static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2190 struct ipr_hostrcb *hostrcb)
2191{
2192 struct ipr_hostrcb_type_30_error *error;
2193 struct ipr_hostrcb64_fabric_desc *fabric;
2194 struct ipr_hostrcb64_config_element *cfg;
2195 int i, add_len;
2196
2197 error = &hostrcb->hcam.u.error64.u.type_30_error;
2198
2199 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2200 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2201
2202 add_len = be32_to_cpu(hostrcb->hcam.length) -
2203 (offsetof(struct ipr_hostrcb64_error, u) +
2204 offsetof(struct ipr_hostrcb_type_30_error, desc));
2205
2206 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2207 ipr_log64_fabric_path(hostrcb, fabric);
2208 for_each_fabric_cfg(fabric, cfg)
2209 ipr_log64_path_elem(hostrcb, cfg);
2210
2211 add_len -= be16_to_cpu(fabric->length);
2212 fabric = (struct ipr_hostrcb64_fabric_desc *)
2213 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2214 }
2215
2216 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2217}
2218
2219/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002220 * ipr_log_generic_error - Log an adapter error.
2221 * @ioa_cfg: ioa config struct
2222 * @hostrcb: hostrcb struct
2223 *
2224 * Return value:
2225 * none
2226 **/
2227static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2228 struct ipr_hostrcb *hostrcb)
2229{
Brian Kingac719ab2006-11-21 10:28:42 -06002230 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06002231 be32_to_cpu(hostrcb->hcam.length));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002232}
2233
2234/**
2235 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2236 * @ioasc: IOASC
2237 *
2238 * This function will return the index of into the ipr_error_table
2239 * for the specified IOASC. If the IOASC is not in the table,
2240 * 0 will be returned, which points to the entry used for unknown errors.
2241 *
2242 * Return value:
2243 * index into the ipr_error_table
2244 **/
2245static u32 ipr_get_error(u32 ioasc)
2246{
2247 int i;
2248
2249 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
Brian King35a39692006-09-25 12:39:20 -05002250 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002251 return i;
2252
2253 return 0;
2254}
2255
2256/**
2257 * ipr_handle_log_data - Log an adapter error.
2258 * @ioa_cfg: ioa config struct
2259 * @hostrcb: hostrcb struct
2260 *
2261 * This function logs an adapter error to the system.
2262 *
2263 * Return value:
2264 * none
2265 **/
2266static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2267 struct ipr_hostrcb *hostrcb)
2268{
2269 u32 ioasc;
2270 int error_index;
2271
2272 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2273 return;
2274
2275 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2276 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2277
Wayne Boyer4565e372010-02-19 13:24:07 -08002278 if (ioa_cfg->sis64)
2279 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2280 else
2281 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002282
Wayne Boyer4565e372010-02-19 13:24:07 -08002283 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2284 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002285 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2286 scsi_report_bus_reset(ioa_cfg->host,
Wayne Boyer4565e372010-02-19 13:24:07 -08002287 hostrcb->hcam.u.error.fd_res_addr.bus);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002288 }
2289
2290 error_index = ipr_get_error(ioasc);
2291
2292 if (!ipr_error_table[error_index].log_hcam)
2293 return;
2294
Brian King49dc6a12006-11-21 10:28:35 -06002295 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002296
2297 /* Set indication we have logged an error */
2298 ioa_cfg->errors_logged++;
2299
Brian King933916f2007-03-29 12:43:30 -05002300 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002301 return;
brking@us.ibm.comcf852032005-11-01 17:00:47 -06002302 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2303 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002304
2305 switch (hostrcb->hcam.overlay_id) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002306 case IPR_HOST_RCB_OVERLAY_ID_2:
2307 ipr_log_cache_error(ioa_cfg, hostrcb);
2308 break;
2309 case IPR_HOST_RCB_OVERLAY_ID_3:
2310 ipr_log_config_error(ioa_cfg, hostrcb);
2311 break;
2312 case IPR_HOST_RCB_OVERLAY_ID_4:
2313 case IPR_HOST_RCB_OVERLAY_ID_6:
2314 ipr_log_array_error(ioa_cfg, hostrcb);
2315 break;
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06002316 case IPR_HOST_RCB_OVERLAY_ID_7:
2317 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2318 break;
brking@us.ibm.comee0f05b2005-11-01 17:02:15 -06002319 case IPR_HOST_RCB_OVERLAY_ID_12:
2320 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2321 break;
2322 case IPR_HOST_RCB_OVERLAY_ID_13:
2323 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2324 break;
2325 case IPR_HOST_RCB_OVERLAY_ID_14:
2326 case IPR_HOST_RCB_OVERLAY_ID_16:
2327 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2328 break;
2329 case IPR_HOST_RCB_OVERLAY_ID_17:
2330 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2331 break;
Brian King49dc6a12006-11-21 10:28:35 -06002332 case IPR_HOST_RCB_OVERLAY_ID_20:
2333 ipr_log_fabric_error(ioa_cfg, hostrcb);
2334 break;
Wayne Boyer4565e372010-02-19 13:24:07 -08002335 case IPR_HOST_RCB_OVERLAY_ID_23:
2336 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2337 break;
2338 case IPR_HOST_RCB_OVERLAY_ID_24:
2339 case IPR_HOST_RCB_OVERLAY_ID_26:
2340 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2341 break;
2342 case IPR_HOST_RCB_OVERLAY_ID_30:
2343 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2344 break;
brking@us.ibm.comcf852032005-11-01 17:00:47 -06002345 case IPR_HOST_RCB_OVERLAY_ID_1:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002346 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
Linus Torvalds1da177e2005-04-16 15:20:36 -07002347 default:
brking@us.ibm.coma9cfca92005-11-01 17:00:41 -06002348 ipr_log_generic_error(ioa_cfg, hostrcb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002349 break;
2350 }
2351}
2352
2353/**
2354 * ipr_process_error - Op done function for an adapter error log.
2355 * @ipr_cmd: ipr command struct
2356 *
2357 * This function is the op done function for an error log host
2358 * controlled async from the adapter. It will log the error and
2359 * send the HCAM back to the adapter.
2360 *
2361 * Return value:
2362 * none
2363 **/
2364static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2365{
2366 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2367 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
Wayne Boyer96d21f02010-05-10 09:13:27 -07002368 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Wayne Boyer4565e372010-02-19 13:24:07 -08002369 u32 fd_ioasc;
2370
2371 if (ioa_cfg->sis64)
2372 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2373 else
2374 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002375
2376 list_del(&hostrcb->queue);
2377 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2378
2379 if (!ioasc) {
2380 ipr_handle_log_data(ioa_cfg, hostrcb);
Brian King65f56472007-04-26 16:00:12 -05002381 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2382 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002383 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2384 dev_err(&ioa_cfg->pdev->dev,
2385 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2386 }
2387
2388 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2389}
2390
2391/**
2392 * ipr_timeout - An internally generated op has timed out.
2393 * @ipr_cmd: ipr command struct
2394 *
2395 * This function blocks host requests and initiates an
2396 * adapter reset.
2397 *
2398 * Return value:
2399 * none
2400 **/
2401static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2402{
2403 unsigned long lock_flags = 0;
2404 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2405
2406 ENTER;
2407 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2408
2409 ioa_cfg->errors_logged++;
2410 dev_err(&ioa_cfg->pdev->dev,
2411 "Adapter being reset due to command timeout.\n");
2412
2413 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2414 ioa_cfg->sdt_state = GET_DUMP;
2415
2416 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2417 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2418
2419 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2420 LEAVE;
2421}
2422
2423/**
2424 * ipr_oper_timeout - Adapter timed out transitioning to operational
2425 * @ipr_cmd: ipr command struct
2426 *
2427 * This function blocks host requests and initiates an
2428 * adapter reset.
2429 *
2430 * Return value:
2431 * none
2432 **/
2433static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2434{
2435 unsigned long lock_flags = 0;
2436 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2437
2438 ENTER;
2439 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2440
2441 ioa_cfg->errors_logged++;
2442 dev_err(&ioa_cfg->pdev->dev,
2443 "Adapter timed out transitioning to operational.\n");
2444
2445 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2446 ioa_cfg->sdt_state = GET_DUMP;
2447
2448 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2449 if (ipr_fastfail)
2450 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2451 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2452 }
2453
2454 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2455 LEAVE;
2456}
2457
2458/**
2459 * ipr_reset_reload - Reset/Reload the IOA
2460 * @ioa_cfg: ioa config struct
2461 * @shutdown_type: shutdown type
2462 *
2463 * This function resets the adapter and re-initializes it.
2464 * This function assumes that all new host commands have been stopped.
2465 * Return value:
2466 * SUCCESS / FAILED
2467 **/
2468static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2469 enum ipr_shutdown_type shutdown_type)
2470{
2471 if (!ioa_cfg->in_reset_reload)
2472 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2473
2474 spin_unlock_irq(ioa_cfg->host->host_lock);
2475 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2476 spin_lock_irq(ioa_cfg->host->host_lock);
2477
2478 /* If we got hit with a host reset while we were already resetting
2479 the adapter for some reason, and the reset failed. */
2480 if (ioa_cfg->ioa_is_dead) {
2481 ipr_trace;
2482 return FAILED;
2483 }
2484
2485 return SUCCESS;
2486}
2487
2488/**
2489 * ipr_find_ses_entry - Find matching SES in SES table
2490 * @res: resource entry struct of SES
2491 *
2492 * Return value:
2493 * pointer to SES table entry / NULL on failure
2494 **/
2495static const struct ipr_ses_table_entry *
2496ipr_find_ses_entry(struct ipr_resource_entry *res)
2497{
2498 int i, j, matches;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08002499 struct ipr_std_inq_vpids *vpids;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002500 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2501
2502 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2503 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2504 if (ste->compare_product_id_byte[j] == 'X') {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08002505 vpids = &res->std_inq_data.vpids;
2506 if (vpids->product_id[j] == ste->product_id[j])
Linus Torvalds1da177e2005-04-16 15:20:36 -07002507 matches++;
2508 else
2509 break;
2510 } else
2511 matches++;
2512 }
2513
2514 if (matches == IPR_PROD_ID_LEN)
2515 return ste;
2516 }
2517
2518 return NULL;
2519}
2520
2521/**
2522 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2523 * @ioa_cfg: ioa config struct
2524 * @bus: SCSI bus
2525 * @bus_width: bus width
2526 *
2527 * Return value:
2528 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2529 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2530 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2531 * max 160MHz = max 320MB/sec).
2532 **/
2533static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2534{
2535 struct ipr_resource_entry *res;
2536 const struct ipr_ses_table_entry *ste;
2537 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2538
2539 /* Loop through each config table entry in the config table buffer */
2540 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08002541 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
Linus Torvalds1da177e2005-04-16 15:20:36 -07002542 continue;
2543
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08002544 if (bus != res->bus)
Linus Torvalds1da177e2005-04-16 15:20:36 -07002545 continue;
2546
2547 if (!(ste = ipr_find_ses_entry(res)))
2548 continue;
2549
2550 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2551 }
2552
2553 return max_xfer_rate;
2554}
2555
2556/**
2557 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2558 * @ioa_cfg: ioa config struct
2559 * @max_delay: max delay in micro-seconds to wait
2560 *
2561 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2562 *
2563 * Return value:
2564 * 0 on success / other on failure
2565 **/
2566static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2567{
2568 volatile u32 pcii_reg;
2569 int delay = 1;
2570
2571 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2572 while (delay < max_delay) {
2573 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2574
2575 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2576 return 0;
2577
2578 /* udelay cannot be used if delay is more than a few milliseconds */
2579 if ((delay / 1000) > MAX_UDELAY_MS)
2580 mdelay(delay / 1000);
2581 else
2582 udelay(delay);
2583
2584 delay += delay;
2585 }
2586 return -EIO;
2587}
2588
2589/**
Wayne Boyerdcbad002010-02-19 13:24:14 -08002590 * ipr_get_sis64_dump_data_section - Dump IOA memory
2591 * @ioa_cfg: ioa config struct
2592 * @start_addr: adapter address to dump
2593 * @dest: destination kernel buffer
2594 * @length_in_words: length to dump in 4 byte words
2595 *
2596 * Return value:
2597 * 0 on success
2598 **/
2599static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2600 u32 start_addr,
2601 __be32 *dest, u32 length_in_words)
2602{
2603 int i;
2604
2605 for (i = 0; i < length_in_words; i++) {
2606 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2607 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2608 dest++;
2609 }
2610
2611 return 0;
2612}
2613
2614/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07002615 * ipr_get_ldump_data_section - Dump IOA memory
2616 * @ioa_cfg: ioa config struct
2617 * @start_addr: adapter address to dump
2618 * @dest: destination kernel buffer
2619 * @length_in_words: length to dump in 4 byte words
2620 *
2621 * Return value:
2622 * 0 on success / -EIO on failure
2623 **/
2624static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2625 u32 start_addr,
2626 __be32 *dest, u32 length_in_words)
2627{
2628 volatile u32 temp_pcii_reg;
2629 int i, delay = 0;
2630
Wayne Boyerdcbad002010-02-19 13:24:14 -08002631 if (ioa_cfg->sis64)
2632 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2633 dest, length_in_words);
2634
Linus Torvalds1da177e2005-04-16 15:20:36 -07002635 /* Write IOA interrupt reg starting LDUMP state */
2636 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
Wayne Boyer214777b2010-02-19 13:24:26 -08002637 ioa_cfg->regs.set_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002638
2639 /* Wait for IO debug acknowledge */
2640 if (ipr_wait_iodbg_ack(ioa_cfg,
2641 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2642 dev_err(&ioa_cfg->pdev->dev,
2643 "IOA dump long data transfer timeout\n");
2644 return -EIO;
2645 }
2646
2647 /* Signal LDUMP interlocked - clear IO debug ack */
2648 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2649 ioa_cfg->regs.clr_interrupt_reg);
2650
2651 /* Write Mailbox with starting address */
2652 writel(start_addr, ioa_cfg->ioa_mailbox);
2653
2654 /* Signal address valid - clear IOA Reset alert */
2655 writel(IPR_UPROCI_RESET_ALERT,
Wayne Boyer214777b2010-02-19 13:24:26 -08002656 ioa_cfg->regs.clr_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002657
2658 for (i = 0; i < length_in_words; i++) {
2659 /* Wait for IO debug acknowledge */
2660 if (ipr_wait_iodbg_ack(ioa_cfg,
2661 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2662 dev_err(&ioa_cfg->pdev->dev,
2663 "IOA dump short data transfer timeout\n");
2664 return -EIO;
2665 }
2666
2667 /* Read data from mailbox and increment destination pointer */
2668 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2669 dest++;
2670
2671 /* For all but the last word of data, signal data received */
2672 if (i < (length_in_words - 1)) {
2673 /* Signal dump data received - Clear IO debug Ack */
2674 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2675 ioa_cfg->regs.clr_interrupt_reg);
2676 }
2677 }
2678
2679 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2680 writel(IPR_UPROCI_RESET_ALERT,
Wayne Boyer214777b2010-02-19 13:24:26 -08002681 ioa_cfg->regs.set_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002682
2683 writel(IPR_UPROCI_IO_DEBUG_ALERT,
Wayne Boyer214777b2010-02-19 13:24:26 -08002684 ioa_cfg->regs.clr_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002685
2686 /* Signal dump data received - Clear IO debug Ack */
2687 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2688 ioa_cfg->regs.clr_interrupt_reg);
2689
2690 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2691 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2692 temp_pcii_reg =
Wayne Boyer214777b2010-02-19 13:24:26 -08002693 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002694
2695 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2696 return 0;
2697
2698 udelay(10);
2699 delay += 10;
2700 }
2701
2702 return 0;
2703}
2704
2705#ifdef CONFIG_SCSI_IPR_DUMP
2706/**
2707 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2708 * @ioa_cfg: ioa config struct
2709 * @pci_address: adapter address
2710 * @length: length of data to copy
2711 *
2712 * Copy data from PCI adapter to kernel buffer.
2713 * Note: length MUST be a 4 byte multiple
2714 * Return value:
2715 * 0 on success / other on failure
2716 **/
2717static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2718 unsigned long pci_address, u32 length)
2719{
2720 int bytes_copied = 0;
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03002721 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002722 __be32 *page;
2723 unsigned long lock_flags = 0;
2724 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2725
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03002726 if (ioa_cfg->sis64)
2727 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2728 else
2729 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2730
Linus Torvalds1da177e2005-04-16 15:20:36 -07002731 while (bytes_copied < length &&
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03002732 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002733 if (ioa_dump->page_offset >= PAGE_SIZE ||
2734 ioa_dump->page_offset == 0) {
2735 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2736
2737 if (!page) {
2738 ipr_trace;
2739 return bytes_copied;
2740 }
2741
2742 ioa_dump->page_offset = 0;
2743 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2744 ioa_dump->next_page_index++;
2745 } else
2746 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2747
2748 rem_len = length - bytes_copied;
2749 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2750 cur_len = min(rem_len, rem_page_len);
2751
2752 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2753 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2754 rc = -EIO;
2755 } else {
2756 rc = ipr_get_ldump_data_section(ioa_cfg,
2757 pci_address + bytes_copied,
2758 &page[ioa_dump->page_offset / 4],
2759 (cur_len / sizeof(u32)));
2760 }
2761 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2762
2763 if (!rc) {
2764 ioa_dump->page_offset += cur_len;
2765 bytes_copied += cur_len;
2766 } else {
2767 ipr_trace;
2768 break;
2769 }
2770 schedule();
2771 }
2772
2773 return bytes_copied;
2774}
2775
2776/**
2777 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2778 * @hdr: dump entry header struct
2779 *
2780 * Return value:
2781 * nothing
2782 **/
2783static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2784{
2785 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2786 hdr->num_elems = 1;
2787 hdr->offset = sizeof(*hdr);
2788 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2789}
2790
2791/**
2792 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2793 * @ioa_cfg: ioa config struct
2794 * @driver_dump: driver dump struct
2795 *
2796 * Return value:
2797 * nothing
2798 **/
2799static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2800 struct ipr_driver_dump *driver_dump)
2801{
2802 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2803
2804 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2805 driver_dump->ioa_type_entry.hdr.len =
2806 sizeof(struct ipr_dump_ioa_type_entry) -
2807 sizeof(struct ipr_dump_entry_header);
2808 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2809 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2810 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2811 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2812 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2813 ucode_vpd->minor_release[1];
2814 driver_dump->hdr.num_entries++;
2815}
2816
2817/**
2818 * ipr_dump_version_data - Fill in the driver version in the dump.
2819 * @ioa_cfg: ioa config struct
2820 * @driver_dump: driver dump struct
2821 *
2822 * Return value:
2823 * nothing
2824 **/
2825static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2826 struct ipr_driver_dump *driver_dump)
2827{
2828 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2829 driver_dump->version_entry.hdr.len =
2830 sizeof(struct ipr_dump_version_entry) -
2831 sizeof(struct ipr_dump_entry_header);
2832 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2833 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2834 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2835 driver_dump->hdr.num_entries++;
2836}
2837
2838/**
2839 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2840 * @ioa_cfg: ioa config struct
2841 * @driver_dump: driver dump struct
2842 *
2843 * Return value:
2844 * nothing
2845 **/
2846static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2847 struct ipr_driver_dump *driver_dump)
2848{
2849 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2850 driver_dump->trace_entry.hdr.len =
2851 sizeof(struct ipr_dump_trace_entry) -
2852 sizeof(struct ipr_dump_entry_header);
2853 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2854 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2855 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2856 driver_dump->hdr.num_entries++;
2857}
2858
2859/**
2860 * ipr_dump_location_data - Fill in the IOA location in the dump.
2861 * @ioa_cfg: ioa config struct
2862 * @driver_dump: driver dump struct
2863 *
2864 * Return value:
2865 * nothing
2866 **/
2867static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2868 struct ipr_driver_dump *driver_dump)
2869{
2870 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2871 driver_dump->location_entry.hdr.len =
2872 sizeof(struct ipr_dump_location_entry) -
2873 sizeof(struct ipr_dump_entry_header);
2874 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2875 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
Kay Sievers71610f52008-12-03 22:41:36 +01002876 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002877 driver_dump->hdr.num_entries++;
2878}
2879
2880/**
2881 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2882 * @ioa_cfg: ioa config struct
2883 * @dump: dump struct
2884 *
2885 * Return value:
2886 * nothing
2887 **/
2888static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2889{
2890 unsigned long start_addr, sdt_word;
2891 unsigned long lock_flags = 0;
2892 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2893 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03002894 u32 num_entries, max_num_entries, start_off, end_off;
2895 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002896 struct ipr_sdt *sdt;
Wayne Boyerdcbad002010-02-19 13:24:14 -08002897 int valid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07002898 int i;
2899
2900 ENTER;
2901
2902 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2903
Brian King41e9a692011-09-21 08:51:11 -05002904 if (ioa_cfg->sdt_state != READ_DUMP) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2906 return;
2907 }
2908
Wayne Boyer110def82010-11-04 09:36:16 -07002909 if (ioa_cfg->sis64) {
2910 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2911 ssleep(IPR_DUMP_DELAY_SECONDS);
2912 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2913 }
2914
Linus Torvalds1da177e2005-04-16 15:20:36 -07002915 start_addr = readl(ioa_cfg->ioa_mailbox);
2916
Wayne Boyerdcbad002010-02-19 13:24:14 -08002917 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002918 dev_err(&ioa_cfg->pdev->dev,
2919 "Invalid dump table format: %lx\n", start_addr);
2920 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2921 return;
2922 }
2923
2924 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2925
2926 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2927
2928 /* Initialize the overall dump header */
2929 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2930 driver_dump->hdr.num_entries = 1;
2931 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2932 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2933 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2934 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2935
2936 ipr_dump_version_data(ioa_cfg, driver_dump);
2937 ipr_dump_location_data(ioa_cfg, driver_dump);
2938 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2939 ipr_dump_trace_data(ioa_cfg, driver_dump);
2940
2941 /* Update dump_header */
2942 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2943
2944 /* IOA Dump entry */
2945 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002946 ioa_dump->hdr.len = 0;
2947 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2948 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2949
2950 /* First entries in sdt are actually a list of dump addresses and
2951 lengths to gather the real dump data. sdt represents the pointer
2952 to the ioa generated dump table. Dump data will be extracted based
2953 on entries in this table */
2954 sdt = &ioa_dump->sdt;
2955
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03002956 if (ioa_cfg->sis64) {
2957 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
2958 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2959 } else {
2960 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
2961 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2962 }
2963
2964 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
2965 (max_num_entries * sizeof(struct ipr_sdt_entry));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002966 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03002967 bytes_to_copy / sizeof(__be32));
Linus Torvalds1da177e2005-04-16 15:20:36 -07002968
2969 /* Smart Dump table is ready to use and the first entry is valid */
Wayne Boyerdcbad002010-02-19 13:24:14 -08002970 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2971 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002972 dev_err(&ioa_cfg->pdev->dev,
2973 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2974 rc, be32_to_cpu(sdt->hdr.state));
2975 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2976 ioa_cfg->sdt_state = DUMP_OBTAINED;
2977 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2978 return;
2979 }
2980
2981 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2982
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03002983 if (num_entries > max_num_entries)
2984 num_entries = max_num_entries;
2985
2986 /* Update dump length to the actual data to be copied */
2987 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
2988 if (ioa_cfg->sis64)
2989 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
2990 else
2991 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
Linus Torvalds1da177e2005-04-16 15:20:36 -07002992
2993 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2994
2995 for (i = 0; i < num_entries; i++) {
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03002996 if (ioa_dump->hdr.len > max_dump_size) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07002997 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2998 break;
2999 }
3000
3001 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
Wayne Boyerdcbad002010-02-19 13:24:14 -08003002 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3003 if (ioa_cfg->sis64)
3004 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3005 else {
3006 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3007 end_off = be32_to_cpu(sdt->entry[i].end_token);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003008
Wayne Boyerdcbad002010-02-19 13:24:14 -08003009 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3010 bytes_to_copy = end_off - start_off;
3011 else
3012 valid = 0;
3013 }
3014 if (valid) {
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03003015 if (bytes_to_copy > max_dump_size) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003016 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3017 continue;
3018 }
3019
3020 /* Copy data from adapter to driver buffers */
3021 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3022 bytes_to_copy);
3023
3024 ioa_dump->hdr.len += bytes_copied;
3025
3026 if (bytes_copied != bytes_to_copy) {
3027 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3028 break;
3029 }
3030 }
3031 }
3032 }
3033
3034 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3035
3036 /* Update dump_header */
3037 driver_dump->hdr.len += ioa_dump->hdr.len;
3038 wmb();
3039 ioa_cfg->sdt_state = DUMP_OBTAINED;
3040 LEAVE;
3041}
3042
3043#else
3044#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3045#endif
3046
3047/**
3048 * ipr_release_dump - Free adapter dump memory
3049 * @kref: kref struct
3050 *
3051 * Return value:
3052 * nothing
3053 **/
3054static void ipr_release_dump(struct kref *kref)
3055{
3056 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3057 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3058 unsigned long lock_flags = 0;
3059 int i;
3060
3061 ENTER;
3062 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3063 ioa_cfg->dump = NULL;
3064 ioa_cfg->sdt_state = INACTIVE;
3065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3066
3067 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3068 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3069
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03003070 vfree(dump->ioa_dump.ioa_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003071 kfree(dump);
3072 LEAVE;
3073}
3074
3075/**
3076 * ipr_worker_thread - Worker thread
David Howellsc4028952006-11-22 14:57:56 +00003077 * @work: ioa config struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07003078 *
3079 * Called at task level from a work thread. This function takes care
3080 * of adding and removing device from the mid-layer as configuration
3081 * changes are detected by the adapter.
3082 *
3083 * Return value:
3084 * nothing
3085 **/
David Howellsc4028952006-11-22 14:57:56 +00003086static void ipr_worker_thread(struct work_struct *work)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003087{
3088 unsigned long lock_flags;
3089 struct ipr_resource_entry *res;
3090 struct scsi_device *sdev;
3091 struct ipr_dump *dump;
David Howellsc4028952006-11-22 14:57:56 +00003092 struct ipr_ioa_cfg *ioa_cfg =
3093 container_of(work, struct ipr_ioa_cfg, work_q);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003094 u8 bus, target, lun;
3095 int did_work;
3096
3097 ENTER;
3098 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3099
Brian King41e9a692011-09-21 08:51:11 -05003100 if (ioa_cfg->sdt_state == READ_DUMP) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003101 dump = ioa_cfg->dump;
3102 if (!dump) {
3103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3104 return;
3105 }
3106 kref_get(&dump->kref);
3107 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3108 ipr_get_ioa_dump(ioa_cfg, dump);
3109 kref_put(&dump->kref, ipr_release_dump);
3110
3111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King4c647e92011-10-15 09:08:56 -05003112 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003113 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3115 return;
3116 }
3117
3118restart:
3119 do {
3120 did_work = 0;
3121 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3123 return;
3124 }
3125
3126 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3127 if (res->del_from_ml && res->sdev) {
3128 did_work = 1;
3129 sdev = res->sdev;
3130 if (!scsi_device_get(sdev)) {
Kleber Sacilotto de Souza5767a1c2011-02-14 20:19:31 -02003131 if (!res->add_to_ml)
3132 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3133 else
3134 res->del_from_ml = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3136 scsi_remove_device(sdev);
3137 scsi_device_put(sdev);
3138 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3139 }
3140 break;
3141 }
3142 }
3143 } while(did_work);
3144
3145 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3146 if (res->add_to_ml) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08003147 bus = res->bus;
3148 target = res->target;
3149 lun = res->lun;
Brian King1121b792006-03-29 09:37:16 -06003150 res->add_to_ml = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003151 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3152 scsi_add_device(ioa_cfg->host, bus, target, lun);
3153 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3154 goto restart;
3155 }
3156 }
3157
3158 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
Tony Jonesee959b02008-02-22 00:13:36 +01003159 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003160 LEAVE;
3161}
3162
3163#ifdef CONFIG_SCSI_IPR_TRACE
3164/**
3165 * ipr_read_trace - Dump the adapter trace
Chris Wright2c3c8be2010-05-12 18:28:57 -07003166 * @filp: open sysfs file
Linus Torvalds1da177e2005-04-16 15:20:36 -07003167 * @kobj: kobject struct
Zhang Rui91a69022007-06-09 13:57:22 +08003168 * @bin_attr: bin_attribute struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07003169 * @buf: buffer
3170 * @off: offset
3171 * @count: buffer size
3172 *
3173 * Return value:
3174 * number of bytes printed to buffer
3175 **/
Chris Wright2c3c8be2010-05-12 18:28:57 -07003176static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
Zhang Rui91a69022007-06-09 13:57:22 +08003177 struct bin_attribute *bin_attr,
3178 char *buf, loff_t off, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003179{
Tony Jonesee959b02008-02-22 00:13:36 +01003180 struct device *dev = container_of(kobj, struct device, kobj);
3181 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003182 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3183 unsigned long lock_flags = 0;
Akinobu Mitad777aaf2008-09-22 14:56:47 -07003184 ssize_t ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003185
3186 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Akinobu Mitad777aaf2008-09-22 14:56:47 -07003187 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3188 IPR_TRACE_SIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
Akinobu Mitad777aaf2008-09-22 14:56:47 -07003190
3191 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003192}
3193
3194static struct bin_attribute ipr_trace_attr = {
3195 .attr = {
3196 .name = "trace",
3197 .mode = S_IRUGO,
3198 },
3199 .size = 0,
3200 .read = ipr_read_trace,
3201};
3202#endif
3203
3204/**
3205 * ipr_show_fw_version - Show the firmware version
Tony Jonesee959b02008-02-22 00:13:36 +01003206 * @dev: class device struct
3207 * @buf: buffer
Linus Torvalds1da177e2005-04-16 15:20:36 -07003208 *
3209 * Return value:
3210 * number of bytes printed to buffer
3211 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003212static ssize_t ipr_show_fw_version(struct device *dev,
3213 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003214{
Tony Jonesee959b02008-02-22 00:13:36 +01003215 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003216 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3217 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
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, "%02X%02X%02X%02X\n",
3223 ucode_vpd->major_release, ucode_vpd->card_type,
3224 ucode_vpd->minor_release[0],
3225 ucode_vpd->minor_release[1]);
3226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3227 return len;
3228}
3229
Tony Jonesee959b02008-02-22 00:13:36 +01003230static struct device_attribute ipr_fw_version_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003231 .attr = {
3232 .name = "fw_version",
3233 .mode = S_IRUGO,
3234 },
3235 .show = ipr_show_fw_version,
3236};
3237
3238/**
3239 * ipr_show_log_level - Show the adapter's error logging level
Tony Jonesee959b02008-02-22 00:13:36 +01003240 * @dev: class device struct
3241 * @buf: buffer
Linus Torvalds1da177e2005-04-16 15:20:36 -07003242 *
3243 * Return value:
3244 * number of bytes printed to buffer
3245 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003246static ssize_t ipr_show_log_level(struct device *dev,
3247 struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003248{
Tony Jonesee959b02008-02-22 00:13:36 +01003249 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003250 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3251 unsigned long lock_flags = 0;
3252 int len;
3253
3254 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3255 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3256 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3257 return len;
3258}
3259
3260/**
3261 * ipr_store_log_level - Change the adapter's error logging level
Tony Jonesee959b02008-02-22 00:13:36 +01003262 * @dev: class device struct
3263 * @buf: buffer
Linus Torvalds1da177e2005-04-16 15:20:36 -07003264 *
3265 * Return value:
3266 * number of bytes printed to buffer
3267 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003268static ssize_t ipr_store_log_level(struct device *dev,
3269 struct device_attribute *attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003270 const char *buf, size_t count)
3271{
Tony Jonesee959b02008-02-22 00:13:36 +01003272 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003273 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3274 unsigned long lock_flags = 0;
3275
3276 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3277 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3278 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3279 return strlen(buf);
3280}
3281
Tony Jonesee959b02008-02-22 00:13:36 +01003282static struct device_attribute ipr_log_level_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003283 .attr = {
3284 .name = "log_level",
3285 .mode = S_IRUGO | S_IWUSR,
3286 },
3287 .show = ipr_show_log_level,
3288 .store = ipr_store_log_level
3289};
3290
3291/**
3292 * ipr_store_diagnostics - IOA Diagnostics interface
Tony Jonesee959b02008-02-22 00:13:36 +01003293 * @dev: device struct
3294 * @buf: buffer
3295 * @count: buffer size
Linus Torvalds1da177e2005-04-16 15:20:36 -07003296 *
3297 * This function will reset the adapter and wait a reasonable
3298 * amount of time for any errors that the adapter might log.
3299 *
3300 * Return value:
3301 * count on success / other on failure
3302 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003303static ssize_t ipr_store_diagnostics(struct device *dev,
3304 struct device_attribute *attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003305 const char *buf, size_t count)
3306{
Tony Jonesee959b02008-02-22 00:13:36 +01003307 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003308 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3309 unsigned long lock_flags = 0;
3310 int rc = count;
3311
3312 if (!capable(CAP_SYS_ADMIN))
3313 return -EACCES;
3314
Linus Torvalds1da177e2005-04-16 15:20:36 -07003315 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King970ea292007-04-26 16:00:06 -05003316 while(ioa_cfg->in_reset_reload) {
3317 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3318 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3319 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3320 }
3321
Linus Torvalds1da177e2005-04-16 15:20:36 -07003322 ioa_cfg->errors_logged = 0;
3323 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3324
3325 if (ioa_cfg->in_reset_reload) {
3326 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3327 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3328
3329 /* Wait for a second for any errors to be logged */
3330 msleep(1000);
3331 } else {
3332 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3333 return -EIO;
3334 }
3335
3336 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3337 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3338 rc = -EIO;
3339 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3340
3341 return rc;
3342}
3343
Tony Jonesee959b02008-02-22 00:13:36 +01003344static struct device_attribute ipr_diagnostics_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003345 .attr = {
3346 .name = "run_diagnostics",
3347 .mode = S_IWUSR,
3348 },
3349 .store = ipr_store_diagnostics
3350};
3351
3352/**
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003353 * ipr_show_adapter_state - Show the adapter's state
Tony Jonesee959b02008-02-22 00:13:36 +01003354 * @class_dev: device struct
3355 * @buf: buffer
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003356 *
3357 * Return value:
3358 * number of bytes printed to buffer
3359 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003360static ssize_t ipr_show_adapter_state(struct device *dev,
3361 struct device_attribute *attr, char *buf)
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003362{
Tony Jonesee959b02008-02-22 00:13:36 +01003363 struct Scsi_Host *shost = class_to_shost(dev);
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003364 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3365 unsigned long lock_flags = 0;
3366 int len;
3367
3368 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3369 if (ioa_cfg->ioa_is_dead)
3370 len = snprintf(buf, PAGE_SIZE, "offline\n");
3371 else
3372 len = snprintf(buf, PAGE_SIZE, "online\n");
3373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3374 return len;
3375}
3376
3377/**
3378 * ipr_store_adapter_state - Change adapter state
Tony Jonesee959b02008-02-22 00:13:36 +01003379 * @dev: device struct
3380 * @buf: buffer
3381 * @count: buffer size
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003382 *
3383 * This function will change the adapter's state.
3384 *
3385 * Return value:
3386 * count on success / other on failure
3387 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003388static ssize_t ipr_store_adapter_state(struct device *dev,
3389 struct device_attribute *attr,
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003390 const char *buf, size_t count)
3391{
Tony Jonesee959b02008-02-22 00:13:36 +01003392 struct Scsi_Host *shost = class_to_shost(dev);
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003393 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3394 unsigned long lock_flags;
3395 int result = count;
3396
3397 if (!capable(CAP_SYS_ADMIN))
3398 return -EACCES;
3399
3400 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3401 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3402 ioa_cfg->ioa_is_dead = 0;
3403 ioa_cfg->reset_retries = 0;
3404 ioa_cfg->in_ioa_bringdown = 0;
3405 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3406 }
3407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3408 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3409
3410 return result;
3411}
3412
Tony Jonesee959b02008-02-22 00:13:36 +01003413static struct device_attribute ipr_ioa_state_attr = {
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003414 .attr = {
Brian King49dd0962008-04-28 17:36:20 -05003415 .name = "online_state",
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003416 .mode = S_IRUGO | S_IWUSR,
3417 },
3418 .show = ipr_show_adapter_state,
3419 .store = ipr_store_adapter_state
3420};
3421
3422/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07003423 * ipr_store_reset_adapter - Reset the adapter
Tony Jonesee959b02008-02-22 00:13:36 +01003424 * @dev: device struct
3425 * @buf: buffer
3426 * @count: buffer size
Linus Torvalds1da177e2005-04-16 15:20:36 -07003427 *
3428 * This function will reset the adapter.
3429 *
3430 * Return value:
3431 * count on success / other on failure
3432 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003433static ssize_t ipr_store_reset_adapter(struct device *dev,
3434 struct device_attribute *attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003435 const char *buf, size_t count)
3436{
Tony Jonesee959b02008-02-22 00:13:36 +01003437 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003438 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3439 unsigned long lock_flags;
3440 int result = count;
3441
3442 if (!capable(CAP_SYS_ADMIN))
3443 return -EACCES;
3444
3445 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3446 if (!ioa_cfg->in_reset_reload)
3447 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3448 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3449 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3450
3451 return result;
3452}
3453
Tony Jonesee959b02008-02-22 00:13:36 +01003454static struct device_attribute ipr_ioa_reset_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003455 .attr = {
3456 .name = "reset_host",
3457 .mode = S_IWUSR,
3458 },
3459 .store = ipr_store_reset_adapter
3460};
3461
3462/**
3463 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3464 * @buf_len: buffer length
3465 *
3466 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3467 * list to use for microcode download
3468 *
3469 * Return value:
3470 * pointer to sglist / NULL on failure
3471 **/
3472static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3473{
3474 int sg_size, order, bsize_elem, num_elem, i, j;
3475 struct ipr_sglist *sglist;
3476 struct scatterlist *scatterlist;
3477 struct page *page;
3478
3479 /* Get the minimum size per scatter/gather element */
3480 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3481
3482 /* Get the actual size per element */
3483 order = get_order(sg_size);
3484
3485 /* Determine the actual number of bytes per element */
3486 bsize_elem = PAGE_SIZE * (1 << order);
3487
3488 /* Determine the actual number of sg entries needed */
3489 if (buf_len % bsize_elem)
3490 num_elem = (buf_len / bsize_elem) + 1;
3491 else
3492 num_elem = buf_len / bsize_elem;
3493
3494 /* Allocate a scatter/gather list for the DMA */
brking@us.ibm.com0bc42e32005-11-01 17:01:20 -06003495 sglist = kzalloc(sizeof(struct ipr_sglist) +
Linus Torvalds1da177e2005-04-16 15:20:36 -07003496 (sizeof(struct scatterlist) * (num_elem - 1)),
3497 GFP_KERNEL);
3498
3499 if (sglist == NULL) {
3500 ipr_trace;
3501 return NULL;
3502 }
3503
Linus Torvalds1da177e2005-04-16 15:20:36 -07003504 scatterlist = sglist->scatterlist;
Jens Axboe45711f12007-10-22 21:19:53 +02003505 sg_init_table(scatterlist, num_elem);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003506
3507 sglist->order = order;
3508 sglist->num_sg = num_elem;
3509
3510 /* Allocate a bunch of sg elements */
3511 for (i = 0; i < num_elem; i++) {
3512 page = alloc_pages(GFP_KERNEL, order);
3513 if (!page) {
3514 ipr_trace;
3515
3516 /* Free up what we already allocated */
3517 for (j = i - 1; j >= 0; j--)
Jens Axboe45711f12007-10-22 21:19:53 +02003518 __free_pages(sg_page(&scatterlist[j]), order);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003519 kfree(sglist);
3520 return NULL;
3521 }
3522
Jens Axboe642f1492007-10-24 11:20:47 +02003523 sg_set_page(&scatterlist[i], page, 0, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003524 }
3525
3526 return sglist;
3527}
3528
3529/**
3530 * ipr_free_ucode_buffer - Frees a microcode download buffer
3531 * @p_dnld: scatter/gather list pointer
3532 *
3533 * Free a DMA'able ucode download buffer previously allocated with
3534 * ipr_alloc_ucode_buffer
3535 *
3536 * Return value:
3537 * nothing
3538 **/
3539static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3540{
3541 int i;
3542
3543 for (i = 0; i < sglist->num_sg; i++)
Jens Axboe45711f12007-10-22 21:19:53 +02003544 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003545
3546 kfree(sglist);
3547}
3548
3549/**
3550 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3551 * @sglist: scatter/gather list pointer
3552 * @buffer: buffer pointer
3553 * @len: buffer length
3554 *
3555 * Copy a microcode image from a user buffer into a buffer allocated by
3556 * ipr_alloc_ucode_buffer
3557 *
3558 * Return value:
3559 * 0 on success / other on failure
3560 **/
3561static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3562 u8 *buffer, u32 len)
3563{
3564 int bsize_elem, i, result = 0;
3565 struct scatterlist *scatterlist;
3566 void *kaddr;
3567
3568 /* Determine the actual number of bytes per element */
3569 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3570
3571 scatterlist = sglist->scatterlist;
3572
3573 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
Jens Axboe45711f12007-10-22 21:19:53 +02003574 struct page *page = sg_page(&scatterlist[i]);
3575
3576 kaddr = kmap(page);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003577 memcpy(kaddr, buffer, bsize_elem);
Jens Axboe45711f12007-10-22 21:19:53 +02003578 kunmap(page);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003579
3580 scatterlist[i].length = bsize_elem;
3581
3582 if (result != 0) {
3583 ipr_trace;
3584 return result;
3585 }
3586 }
3587
3588 if (len % bsize_elem) {
Jens Axboe45711f12007-10-22 21:19:53 +02003589 struct page *page = sg_page(&scatterlist[i]);
3590
3591 kaddr = kmap(page);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003592 memcpy(kaddr, buffer, len % bsize_elem);
Jens Axboe45711f12007-10-22 21:19:53 +02003593 kunmap(page);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003594
3595 scatterlist[i].length = len % bsize_elem;
3596 }
3597
3598 sglist->buffer_len = len;
3599 return result;
3600}
3601
3602/**
Wayne Boyera32c0552010-02-19 13:23:36 -08003603 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3604 * @ipr_cmd: ipr command struct
3605 * @sglist: scatter/gather list
3606 *
3607 * Builds a microcode download IOA data list (IOADL).
3608 *
3609 **/
3610static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3611 struct ipr_sglist *sglist)
3612{
3613 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3614 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3615 struct scatterlist *scatterlist = sglist->scatterlist;
3616 int i;
3617
3618 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3619 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3620 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3621
3622 ioarcb->ioadl_len =
3623 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3624 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3625 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3626 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3627 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3628 }
3629
3630 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3631}
3632
3633/**
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003634 * ipr_build_ucode_ioadl - Build a microcode download IOADL
Linus Torvalds1da177e2005-04-16 15:20:36 -07003635 * @ipr_cmd: ipr command struct
3636 * @sglist: scatter/gather list
Linus Torvalds1da177e2005-04-16 15:20:36 -07003637 *
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003638 * Builds a microcode download IOA data list (IOADL).
Linus Torvalds1da177e2005-04-16 15:20:36 -07003639 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07003640 **/
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003641static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3642 struct ipr_sglist *sglist)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003643{
Linus Torvalds1da177e2005-04-16 15:20:36 -07003644 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyera32c0552010-02-19 13:23:36 -08003645 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003646 struct scatterlist *scatterlist = sglist->scatterlist;
3647 int i;
3648
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003649 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003650 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
Wayne Boyera32c0552010-02-19 13:23:36 -08003651 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3652
3653 ioarcb->ioadl_len =
Linus Torvalds1da177e2005-04-16 15:20:36 -07003654 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3655
3656 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3657 ioadl[i].flags_and_data_len =
3658 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3659 ioadl[i].address =
3660 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3661 }
3662
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003663 ioadl[i-1].flags_and_data_len |=
3664 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3665}
3666
3667/**
3668 * ipr_update_ioa_ucode - Update IOA's microcode
3669 * @ioa_cfg: ioa config struct
3670 * @sglist: scatter/gather list
3671 *
3672 * Initiate an adapter reset to update the IOA's microcode
3673 *
3674 * Return value:
3675 * 0 on success / -EIO on failure
3676 **/
3677static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3678 struct ipr_sglist *sglist)
3679{
3680 unsigned long lock_flags;
3681
3682 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King970ea292007-04-26 16:00:06 -05003683 while(ioa_cfg->in_reset_reload) {
3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3686 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3687 }
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003688
3689 if (ioa_cfg->ucode_sglist) {
3690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3691 dev_err(&ioa_cfg->pdev->dev,
3692 "Microcode download already in progress\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07003693 return -EIO;
3694 }
3695
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003696 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3697 sglist->num_sg, DMA_TO_DEVICE);
3698
3699 if (!sglist->num_dma_sg) {
3700 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3701 dev_err(&ioa_cfg->pdev->dev,
3702 "Failed to map microcode download buffer!\n");
3703 return -EIO;
3704 }
3705
3706 ioa_cfg->ucode_sglist = sglist;
3707 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3708 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3709 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3710
3711 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3712 ioa_cfg->ucode_sglist = NULL;
3713 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003714 return 0;
3715}
3716
3717/**
3718 * ipr_store_update_fw - Update the firmware on the adapter
Tony Jonesee959b02008-02-22 00:13:36 +01003719 * @class_dev: device struct
3720 * @buf: buffer
3721 * @count: buffer size
Linus Torvalds1da177e2005-04-16 15:20:36 -07003722 *
3723 * This function will update the firmware on the adapter.
3724 *
3725 * Return value:
3726 * count on success / other on failure
3727 **/
Tony Jonesee959b02008-02-22 00:13:36 +01003728static ssize_t ipr_store_update_fw(struct device *dev,
3729 struct device_attribute *attr,
3730 const char *buf, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003731{
Tony Jonesee959b02008-02-22 00:13:36 +01003732 struct Scsi_Host *shost = class_to_shost(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003733 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3734 struct ipr_ucode_image_header *image_hdr;
3735 const struct firmware *fw_entry;
3736 struct ipr_sglist *sglist;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003737 char fname[100];
3738 char *src;
3739 int len, result, dnld_size;
3740
3741 if (!capable(CAP_SYS_ADMIN))
3742 return -EACCES;
3743
3744 len = snprintf(fname, 99, "%s", buf);
3745 fname[len-1] = '\0';
3746
3747 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3748 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3749 return -EIO;
3750 }
3751
3752 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3753
Linus Torvalds1da177e2005-04-16 15:20:36 -07003754 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3755 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3756 sglist = ipr_alloc_ucode_buffer(dnld_size);
3757
3758 if (!sglist) {
3759 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3760 release_firmware(fw_entry);
3761 return -ENOMEM;
3762 }
3763
3764 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3765
3766 if (result) {
3767 dev_err(&ioa_cfg->pdev->dev,
3768 "Microcode buffer copy to DMA buffer failed\n");
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003769 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003770 }
3771
Wayne Boyer14ed9cc2011-10-03 20:54:37 -07003772 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
3773
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003774 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003775
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003776 if (!result)
3777 result = count;
3778out:
Linus Torvalds1da177e2005-04-16 15:20:36 -07003779 ipr_free_ucode_buffer(sglist);
3780 release_firmware(fw_entry);
brking@us.ibm.com12baa422005-11-01 17:01:27 -06003781 return result;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003782}
3783
Tony Jonesee959b02008-02-22 00:13:36 +01003784static struct device_attribute ipr_update_fw_attr = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003785 .attr = {
3786 .name = "update_fw",
3787 .mode = S_IWUSR,
3788 },
3789 .store = ipr_store_update_fw
3790};
3791
Wayne Boyer75576bb2010-07-14 10:50:14 -07003792/**
3793 * ipr_show_fw_type - Show the adapter's firmware type.
3794 * @dev: class device struct
3795 * @buf: buffer
3796 *
3797 * Return value:
3798 * number of bytes printed to buffer
3799 **/
3800static ssize_t ipr_show_fw_type(struct device *dev,
3801 struct device_attribute *attr, char *buf)
3802{
3803 struct Scsi_Host *shost = class_to_shost(dev);
3804 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3805 unsigned long lock_flags = 0;
3806 int len;
3807
3808 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3809 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3810 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3811 return len;
3812}
3813
3814static struct device_attribute ipr_ioa_fw_type_attr = {
3815 .attr = {
3816 .name = "fw_type",
3817 .mode = S_IRUGO,
3818 },
3819 .show = ipr_show_fw_type
3820};
3821
Tony Jonesee959b02008-02-22 00:13:36 +01003822static struct device_attribute *ipr_ioa_attrs[] = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07003823 &ipr_fw_version_attr,
3824 &ipr_log_level_attr,
3825 &ipr_diagnostics_attr,
brking@us.ibm.comf37eb542005-11-01 17:01:40 -06003826 &ipr_ioa_state_attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003827 &ipr_ioa_reset_attr,
3828 &ipr_update_fw_attr,
Wayne Boyer75576bb2010-07-14 10:50:14 -07003829 &ipr_ioa_fw_type_attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07003830 NULL,
3831};
3832
3833#ifdef CONFIG_SCSI_IPR_DUMP
3834/**
3835 * ipr_read_dump - Dump the adapter
Chris Wright2c3c8be2010-05-12 18:28:57 -07003836 * @filp: open sysfs file
Linus Torvalds1da177e2005-04-16 15:20:36 -07003837 * @kobj: kobject struct
Zhang Rui91a69022007-06-09 13:57:22 +08003838 * @bin_attr: bin_attribute struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07003839 * @buf: buffer
3840 * @off: offset
3841 * @count: buffer size
3842 *
3843 * Return value:
3844 * number of bytes printed to buffer
3845 **/
Chris Wright2c3c8be2010-05-12 18:28:57 -07003846static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
Zhang Rui91a69022007-06-09 13:57:22 +08003847 struct bin_attribute *bin_attr,
3848 char *buf, loff_t off, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07003849{
Tony Jonesee959b02008-02-22 00:13:36 +01003850 struct device *cdev = container_of(kobj, struct device, kobj);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003851 struct Scsi_Host *shost = class_to_shost(cdev);
3852 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3853 struct ipr_dump *dump;
3854 unsigned long lock_flags = 0;
3855 char *src;
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03003856 int len, sdt_end;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003857 size_t rc = count;
3858
3859 if (!capable(CAP_SYS_ADMIN))
3860 return -EACCES;
3861
3862 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3863 dump = ioa_cfg->dump;
3864
3865 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3866 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3867 return 0;
3868 }
3869 kref_get(&dump->kref);
3870 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3871
3872 if (off > dump->driver_dump.hdr.len) {
3873 kref_put(&dump->kref, ipr_release_dump);
3874 return 0;
3875 }
3876
3877 if (off + count > dump->driver_dump.hdr.len) {
3878 count = dump->driver_dump.hdr.len - off;
3879 rc = count;
3880 }
3881
3882 if (count && off < sizeof(dump->driver_dump)) {
3883 if (off + count > sizeof(dump->driver_dump))
3884 len = sizeof(dump->driver_dump) - off;
3885 else
3886 len = count;
3887 src = (u8 *)&dump->driver_dump + off;
3888 memcpy(buf, src, len);
3889 buf += len;
3890 off += len;
3891 count -= len;
3892 }
3893
3894 off -= sizeof(dump->driver_dump);
3895
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03003896 if (ioa_cfg->sis64)
3897 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3898 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
3899 sizeof(struct ipr_sdt_entry));
3900 else
3901 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3902 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
3903
3904 if (count && off < sdt_end) {
3905 if (off + count > sdt_end)
3906 len = sdt_end - off;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003907 else
3908 len = count;
3909 src = (u8 *)&dump->ioa_dump + off;
3910 memcpy(buf, src, len);
3911 buf += len;
3912 off += len;
3913 count -= len;
3914 }
3915
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03003916 off -= sdt_end;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003917
3918 while (count) {
3919 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3920 len = PAGE_ALIGN(off) - off;
3921 else
3922 len = count;
3923 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3924 src += off & ~PAGE_MASK;
3925 memcpy(buf, src, len);
3926 buf += len;
3927 off += len;
3928 count -= len;
3929 }
3930
3931 kref_put(&dump->kref, ipr_release_dump);
3932 return rc;
3933}
3934
3935/**
3936 * ipr_alloc_dump - Prepare for adapter dump
3937 * @ioa_cfg: ioa config struct
3938 *
3939 * Return value:
3940 * 0 on success / other on failure
3941 **/
3942static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3943{
3944 struct ipr_dump *dump;
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03003945 __be32 **ioa_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -07003946 unsigned long lock_flags = 0;
3947
brking@us.ibm.com0bc42e32005-11-01 17:01:20 -06003948 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003949
3950 if (!dump) {
3951 ipr_err("Dump memory allocation failed\n");
3952 return -ENOMEM;
3953 }
3954
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03003955 if (ioa_cfg->sis64)
3956 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3957 else
3958 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3959
3960 if (!ioa_data) {
3961 ipr_err("Dump memory allocation failed\n");
3962 kfree(dump);
3963 return -ENOMEM;
3964 }
3965
3966 dump->ioa_dump.ioa_data = ioa_data;
3967
Linus Torvalds1da177e2005-04-16 15:20:36 -07003968 kref_init(&dump->kref);
3969 dump->ioa_cfg = ioa_cfg;
3970
3971 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3972
3973 if (INACTIVE != ioa_cfg->sdt_state) {
3974 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03003975 vfree(dump->ioa_dump.ioa_data);
Linus Torvalds1da177e2005-04-16 15:20:36 -07003976 kfree(dump);
3977 return 0;
3978 }
3979
3980 ioa_cfg->dump = dump;
3981 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3982 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3983 ioa_cfg->dump_taken = 1;
3984 schedule_work(&ioa_cfg->work_q);
3985 }
3986 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3987
Linus Torvalds1da177e2005-04-16 15:20:36 -07003988 return 0;
3989}
3990
3991/**
3992 * ipr_free_dump - Free adapter dump memory
3993 * @ioa_cfg: ioa config struct
3994 *
3995 * Return value:
3996 * 0 on success / other on failure
3997 **/
3998static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3999{
4000 struct ipr_dump *dump;
4001 unsigned long lock_flags = 0;
4002
4003 ENTER;
4004
4005 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4006 dump = ioa_cfg->dump;
4007 if (!dump) {
4008 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4009 return 0;
4010 }
4011
4012 ioa_cfg->dump = NULL;
4013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4014
4015 kref_put(&dump->kref, ipr_release_dump);
4016
4017 LEAVE;
4018 return 0;
4019}
4020
4021/**
4022 * ipr_write_dump - Setup dump state of adapter
Chris Wright2c3c8be2010-05-12 18:28:57 -07004023 * @filp: open sysfs file
Linus Torvalds1da177e2005-04-16 15:20:36 -07004024 * @kobj: kobject struct
Zhang Rui91a69022007-06-09 13:57:22 +08004025 * @bin_attr: bin_attribute struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07004026 * @buf: buffer
4027 * @off: offset
4028 * @count: buffer size
4029 *
4030 * Return value:
4031 * number of bytes printed to buffer
4032 **/
Chris Wright2c3c8be2010-05-12 18:28:57 -07004033static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
Zhang Rui91a69022007-06-09 13:57:22 +08004034 struct bin_attribute *bin_attr,
4035 char *buf, loff_t off, size_t count)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004036{
Tony Jonesee959b02008-02-22 00:13:36 +01004037 struct device *cdev = container_of(kobj, struct device, kobj);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004038 struct Scsi_Host *shost = class_to_shost(cdev);
4039 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4040 int rc;
4041
4042 if (!capable(CAP_SYS_ADMIN))
4043 return -EACCES;
4044
4045 if (buf[0] == '1')
4046 rc = ipr_alloc_dump(ioa_cfg);
4047 else if (buf[0] == '0')
4048 rc = ipr_free_dump(ioa_cfg);
4049 else
4050 return -EINVAL;
4051
4052 if (rc)
4053 return rc;
4054 else
4055 return count;
4056}
4057
4058static struct bin_attribute ipr_dump_attr = {
4059 .attr = {
4060 .name = "dump",
4061 .mode = S_IRUSR | S_IWUSR,
4062 },
4063 .size = 0,
4064 .read = ipr_read_dump,
4065 .write = ipr_write_dump
4066};
4067#else
4068static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4069#endif
4070
4071/**
4072 * ipr_change_queue_depth - Change the device's queue depth
4073 * @sdev: scsi device struct
4074 * @qdepth: depth to set
Mike Christiee881a172009-10-15 17:46:39 -07004075 * @reason: calling context
Linus Torvalds1da177e2005-04-16 15:20:36 -07004076 *
4077 * Return value:
4078 * actual depth set
4079 **/
Mike Christiee881a172009-10-15 17:46:39 -07004080static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4081 int reason)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004082{
Brian King35a39692006-09-25 12:39:20 -05004083 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4084 struct ipr_resource_entry *res;
4085 unsigned long lock_flags = 0;
4086
Mike Christiee881a172009-10-15 17:46:39 -07004087 if (reason != SCSI_QDEPTH_DEFAULT)
4088 return -EOPNOTSUPP;
4089
Brian King35a39692006-09-25 12:39:20 -05004090 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4091 res = (struct ipr_resource_entry *)sdev->hostdata;
4092
4093 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4094 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4095 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4096
Linus Torvalds1da177e2005-04-16 15:20:36 -07004097 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4098 return sdev->queue_depth;
4099}
4100
4101/**
4102 * ipr_change_queue_type - Change the device's queue type
4103 * @dsev: scsi device struct
4104 * @tag_type: type of tags to use
4105 *
4106 * Return value:
4107 * actual queue type set
4108 **/
4109static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4110{
4111 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4112 struct ipr_resource_entry *res;
4113 unsigned long lock_flags = 0;
4114
4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4116 res = (struct ipr_resource_entry *)sdev->hostdata;
4117
4118 if (res) {
4119 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4120 /*
4121 * We don't bother quiescing the device here since the
4122 * adapter firmware does it for us.
4123 */
4124 scsi_set_tag_type(sdev, tag_type);
4125
4126 if (tag_type)
4127 scsi_activate_tcq(sdev, sdev->queue_depth);
4128 else
4129 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4130 } else
4131 tag_type = 0;
4132 } else
4133 tag_type = 0;
4134
4135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4136 return tag_type;
4137}
4138
4139/**
4140 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4141 * @dev: device struct
Wayne Boyer46d74562010-08-11 07:15:17 -07004142 * @attr: device attribute structure
Linus Torvalds1da177e2005-04-16 15:20:36 -07004143 * @buf: buffer
4144 *
4145 * Return value:
4146 * number of bytes printed to buffer
4147 **/
Yani Ioannou10523b32005-05-17 06:43:37 -04004148static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004149{
4150 struct scsi_device *sdev = to_scsi_device(dev);
4151 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4152 struct ipr_resource_entry *res;
4153 unsigned long lock_flags = 0;
4154 ssize_t len = -ENXIO;
4155
4156 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4157 res = (struct ipr_resource_entry *)sdev->hostdata;
4158 if (res)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004159 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4161 return len;
4162}
4163
4164static struct device_attribute ipr_adapter_handle_attr = {
4165 .attr = {
4166 .name = "adapter_handle",
4167 .mode = S_IRUSR,
4168 },
4169 .show = ipr_show_adapter_handle
4170};
4171
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004172/**
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07004173 * ipr_show_resource_path - Show the resource path or the resource address for
4174 * this device.
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004175 * @dev: device struct
Wayne Boyer46d74562010-08-11 07:15:17 -07004176 * @attr: device attribute structure
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004177 * @buf: buffer
4178 *
4179 * Return value:
4180 * number of bytes printed to buffer
4181 **/
4182static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4183{
4184 struct scsi_device *sdev = to_scsi_device(dev);
4185 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4186 struct ipr_resource_entry *res;
4187 unsigned long lock_flags = 0;
4188 ssize_t len = -ENXIO;
4189 char buffer[IPR_MAX_RES_PATH_LENGTH];
4190
4191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4192 res = (struct ipr_resource_entry *)sdev->hostdata;
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07004193 if (res && ioa_cfg->sis64)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004194 len = snprintf(buf, PAGE_SIZE, "%s\n",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07004195 ipr_format_res_path(res->res_path, buffer,
4196 sizeof(buffer)));
4197 else if (res)
4198 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4199 res->bus, res->target, res->lun);
4200
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004201 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4202 return len;
4203}
4204
4205static struct device_attribute ipr_resource_path_attr = {
4206 .attr = {
4207 .name = "resource_path",
Wayne Boyer75576bb2010-07-14 10:50:14 -07004208 .mode = S_IRUGO,
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004209 },
4210 .show = ipr_show_resource_path
4211};
4212
Wayne Boyer75576bb2010-07-14 10:50:14 -07004213/**
Wayne Boyer46d74562010-08-11 07:15:17 -07004214 * ipr_show_device_id - Show the device_id for this device.
4215 * @dev: device struct
4216 * @attr: device attribute structure
4217 * @buf: buffer
4218 *
4219 * Return value:
4220 * number of bytes printed to buffer
4221 **/
4222static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4223{
4224 struct scsi_device *sdev = to_scsi_device(dev);
4225 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4226 struct ipr_resource_entry *res;
4227 unsigned long lock_flags = 0;
4228 ssize_t len = -ENXIO;
4229
4230 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4231 res = (struct ipr_resource_entry *)sdev->hostdata;
4232 if (res && ioa_cfg->sis64)
4233 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4234 else if (res)
4235 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4236
4237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4238 return len;
4239}
4240
4241static struct device_attribute ipr_device_id_attr = {
4242 .attr = {
4243 .name = "device_id",
4244 .mode = S_IRUGO,
4245 },
4246 .show = ipr_show_device_id
4247};
4248
4249/**
Wayne Boyer75576bb2010-07-14 10:50:14 -07004250 * ipr_show_resource_type - Show the resource type for this device.
4251 * @dev: device struct
Wayne Boyer46d74562010-08-11 07:15:17 -07004252 * @attr: device attribute structure
Wayne Boyer75576bb2010-07-14 10:50:14 -07004253 * @buf: buffer
4254 *
4255 * Return value:
4256 * number of bytes printed to buffer
4257 **/
4258static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4259{
4260 struct scsi_device *sdev = to_scsi_device(dev);
4261 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4262 struct ipr_resource_entry *res;
4263 unsigned long lock_flags = 0;
4264 ssize_t len = -ENXIO;
4265
4266 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4267 res = (struct ipr_resource_entry *)sdev->hostdata;
4268
4269 if (res)
4270 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4271
4272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4273 return len;
4274}
4275
4276static struct device_attribute ipr_resource_type_attr = {
4277 .attr = {
4278 .name = "resource_type",
4279 .mode = S_IRUGO,
4280 },
4281 .show = ipr_show_resource_type
4282};
4283
Linus Torvalds1da177e2005-04-16 15:20:36 -07004284static struct device_attribute *ipr_dev_attrs[] = {
4285 &ipr_adapter_handle_attr,
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004286 &ipr_resource_path_attr,
Wayne Boyer46d74562010-08-11 07:15:17 -07004287 &ipr_device_id_attr,
Wayne Boyer75576bb2010-07-14 10:50:14 -07004288 &ipr_resource_type_attr,
Linus Torvalds1da177e2005-04-16 15:20:36 -07004289 NULL,
4290};
4291
4292/**
4293 * ipr_biosparam - Return the HSC mapping
4294 * @sdev: scsi device struct
4295 * @block_device: block device pointer
4296 * @capacity: capacity of the device
4297 * @parm: Array containing returned HSC values.
4298 *
4299 * This function generates the HSC parms that fdisk uses.
4300 * We want to make sure we return something that places partitions
4301 * on 4k boundaries for best performance with the IOA.
4302 *
4303 * Return value:
4304 * 0 on success
4305 **/
4306static int ipr_biosparam(struct scsi_device *sdev,
4307 struct block_device *block_device,
4308 sector_t capacity, int *parm)
4309{
4310 int heads, sectors;
4311 sector_t cylinders;
4312
4313 heads = 128;
4314 sectors = 32;
4315
4316 cylinders = capacity;
4317 sector_div(cylinders, (128 * 32));
4318
4319 /* return result */
4320 parm[0] = heads;
4321 parm[1] = sectors;
4322 parm[2] = cylinders;
4323
4324 return 0;
4325}
4326
4327/**
Brian King35a39692006-09-25 12:39:20 -05004328 * ipr_find_starget - Find target based on bus/target.
4329 * @starget: scsi target struct
4330 *
4331 * Return value:
4332 * resource entry pointer if found / NULL if not found
4333 **/
4334static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4335{
4336 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4337 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4338 struct ipr_resource_entry *res;
4339
4340 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004341 if ((res->bus == starget->channel) &&
4342 (res->target == starget->id) &&
4343 (res->lun == 0)) {
Brian King35a39692006-09-25 12:39:20 -05004344 return res;
4345 }
4346 }
4347
4348 return NULL;
4349}
4350
4351static struct ata_port_info sata_port_info;
4352
4353/**
4354 * ipr_target_alloc - Prepare for commands to a SCSI target
4355 * @starget: scsi target struct
4356 *
4357 * If the device is a SATA device, this function allocates an
4358 * ATA port with libata, else it does nothing.
4359 *
4360 * Return value:
4361 * 0 on success / non-0 on failure
4362 **/
4363static int ipr_target_alloc(struct scsi_target *starget)
4364{
4365 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4366 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4367 struct ipr_sata_port *sata_port;
4368 struct ata_port *ap;
4369 struct ipr_resource_entry *res;
4370 unsigned long lock_flags;
4371
4372 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4373 res = ipr_find_starget(starget);
4374 starget->hostdata = NULL;
4375
4376 if (res && ipr_is_gata(res)) {
4377 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4378 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4379 if (!sata_port)
4380 return -ENOMEM;
4381
4382 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4383 if (ap) {
4384 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4385 sata_port->ioa_cfg = ioa_cfg;
4386 sata_port->ap = ap;
4387 sata_port->res = res;
4388
4389 res->sata_port = sata_port;
4390 ap->private_data = sata_port;
4391 starget->hostdata = sata_port;
4392 } else {
4393 kfree(sata_port);
4394 return -ENOMEM;
4395 }
4396 }
4397 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4398
4399 return 0;
4400}
4401
4402/**
4403 * ipr_target_destroy - Destroy a SCSI target
4404 * @starget: scsi target struct
4405 *
4406 * If the device was a SATA device, this function frees the libata
4407 * ATA port, else it does nothing.
4408 *
4409 **/
4410static void ipr_target_destroy(struct scsi_target *starget)
4411{
4412 struct ipr_sata_port *sata_port = starget->hostdata;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004413 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4414 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4415
4416 if (ioa_cfg->sis64) {
4417 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4418 clear_bit(starget->id, ioa_cfg->array_ids);
4419 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4420 clear_bit(starget->id, ioa_cfg->vset_ids);
4421 else if (starget->channel == 0)
4422 clear_bit(starget->id, ioa_cfg->target_ids);
4423 }
Brian King35a39692006-09-25 12:39:20 -05004424
4425 if (sata_port) {
4426 starget->hostdata = NULL;
4427 ata_sas_port_destroy(sata_port->ap);
4428 kfree(sata_port);
4429 }
4430}
4431
4432/**
4433 * ipr_find_sdev - Find device based on bus/target/lun.
4434 * @sdev: scsi device struct
4435 *
4436 * Return value:
4437 * resource entry pointer if found / NULL if not found
4438 **/
4439static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4440{
4441 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4442 struct ipr_resource_entry *res;
4443
4444 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004445 if ((res->bus == sdev->channel) &&
4446 (res->target == sdev->id) &&
4447 (res->lun == sdev->lun))
Brian King35a39692006-09-25 12:39:20 -05004448 return res;
4449 }
4450
4451 return NULL;
4452}
4453
4454/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004455 * ipr_slave_destroy - Unconfigure a SCSI device
4456 * @sdev: scsi device struct
4457 *
4458 * Return value:
4459 * nothing
4460 **/
4461static void ipr_slave_destroy(struct scsi_device *sdev)
4462{
4463 struct ipr_resource_entry *res;
4464 struct ipr_ioa_cfg *ioa_cfg;
4465 unsigned long lock_flags = 0;
4466
4467 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4468
4469 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4470 res = (struct ipr_resource_entry *) sdev->hostdata;
4471 if (res) {
Brian King35a39692006-09-25 12:39:20 -05004472 if (res->sata_port)
Tejun Heo3e4ec342010-05-10 21:41:30 +02004473 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004474 sdev->hostdata = NULL;
4475 res->sdev = NULL;
Brian King35a39692006-09-25 12:39:20 -05004476 res->sata_port = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004477 }
4478 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4479}
4480
4481/**
4482 * ipr_slave_configure - Configure a SCSI device
4483 * @sdev: scsi device struct
4484 *
4485 * This function configures the specified scsi device.
4486 *
4487 * Return value:
4488 * 0 on success
4489 **/
4490static int ipr_slave_configure(struct scsi_device *sdev)
4491{
4492 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4493 struct ipr_resource_entry *res;
Brian Kingdd406ef2009-04-22 08:58:02 -05004494 struct ata_port *ap = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004495 unsigned long lock_flags = 0;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004496 char buffer[IPR_MAX_RES_PATH_LENGTH];
Linus Torvalds1da177e2005-04-16 15:20:36 -07004497
4498 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4499 res = sdev->hostdata;
4500 if (res) {
4501 if (ipr_is_af_dasd_device(res))
4502 sdev->type = TYPE_RAID;
brking@us.ibm.com0726ce22005-11-01 17:01:01 -06004503 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004504 sdev->scsi_level = 4;
brking@us.ibm.com0726ce22005-11-01 17:01:01 -06004505 sdev->no_uld_attach = 1;
4506 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004507 if (ipr_is_vset_device(res)) {
Jens Axboe242f9dc2008-09-14 05:55:09 -07004508 blk_queue_rq_timeout(sdev->request_queue,
4509 IPR_VSET_RW_TIMEOUT);
Martin K. Petersen086fa5f2010-02-26 00:20:38 -05004510 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004511 }
Brian Kingdd406ef2009-04-22 08:58:02 -05004512 if (ipr_is_gata(res) && res->sata_port)
4513 ap = res->sata_port->ap;
4514 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4515
4516 if (ap) {
Brian King35a39692006-09-25 12:39:20 -05004517 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
Brian Kingdd406ef2009-04-22 08:58:02 -05004518 ata_sas_slave_configure(sdev, ap);
4519 } else
Brian King35a39692006-09-25 12:39:20 -05004520 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004521 if (ioa_cfg->sis64)
4522 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
Wayne Boyer5adcbeb2010-06-03 16:02:21 -07004523 ipr_format_res_path(res->res_path, buffer,
4524 sizeof(buffer)));
Brian Kingdd406ef2009-04-22 08:58:02 -05004525 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004526 }
4527 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4528 return 0;
4529}
4530
4531/**
Brian King35a39692006-09-25 12:39:20 -05004532 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4533 * @sdev: scsi device struct
4534 *
4535 * This function initializes an ATA port so that future commands
4536 * sent through queuecommand will work.
4537 *
4538 * Return value:
4539 * 0 on success
4540 **/
4541static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4542{
4543 struct ipr_sata_port *sata_port = NULL;
4544 int rc = -ENXIO;
4545
4546 ENTER;
4547 if (sdev->sdev_target)
4548 sata_port = sdev->sdev_target->hostdata;
4549 if (sata_port)
4550 rc = ata_sas_port_init(sata_port->ap);
4551 if (rc)
4552 ipr_slave_destroy(sdev);
4553
4554 LEAVE;
4555 return rc;
4556}
4557
4558/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004559 * ipr_slave_alloc - Prepare for commands to a device.
4560 * @sdev: scsi device struct
4561 *
4562 * This function saves a pointer to the resource entry
4563 * in the scsi device struct if the device exists. We
4564 * can then use this pointer in ipr_queuecommand when
4565 * handling new commands.
4566 *
4567 * Return value:
brking@us.ibm.com692aebf2005-11-01 17:01:07 -06004568 * 0 on success / -ENXIO if device does not exist
Linus Torvalds1da177e2005-04-16 15:20:36 -07004569 **/
4570static int ipr_slave_alloc(struct scsi_device *sdev)
4571{
4572 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4573 struct ipr_resource_entry *res;
4574 unsigned long lock_flags;
brking@us.ibm.com692aebf2005-11-01 17:01:07 -06004575 int rc = -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004576
4577 sdev->hostdata = NULL;
4578
4579 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4580
Brian King35a39692006-09-25 12:39:20 -05004581 res = ipr_find_sdev(sdev);
4582 if (res) {
4583 res->sdev = sdev;
4584 res->add_to_ml = 0;
4585 res->in_erp = 0;
4586 sdev->hostdata = res;
4587 if (!ipr_is_naca_model(res))
4588 res->needs_sync_complete = 1;
4589 rc = 0;
4590 if (ipr_is_gata(res)) {
4591 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4592 return ipr_ata_slave_alloc(sdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004593 }
4594 }
4595
4596 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4597
brking@us.ibm.com692aebf2005-11-01 17:01:07 -06004598 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004599}
4600
4601/**
4602 * ipr_eh_host_reset - Reset the host adapter
4603 * @scsi_cmd: scsi command struct
4604 *
4605 * Return value:
4606 * SUCCESS / FAILED
4607 **/
Jeff Garzik df0ae242005-05-28 07:57:14 -04004608static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004609{
4610 struct ipr_ioa_cfg *ioa_cfg;
4611 int rc;
4612
4613 ENTER;
4614 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4615
4616 dev_err(&ioa_cfg->pdev->dev,
4617 "Adapter being reset as a result of error recovery.\n");
4618
4619 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4620 ioa_cfg->sdt_state = GET_DUMP;
4621
4622 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4623
4624 LEAVE;
4625 return rc;
4626}
4627
Jeff Garzik df0ae242005-05-28 07:57:14 -04004628static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4629{
4630 int rc;
4631
4632 spin_lock_irq(cmd->device->host->host_lock);
4633 rc = __ipr_eh_host_reset(cmd);
4634 spin_unlock_irq(cmd->device->host->host_lock);
4635
4636 return rc;
4637}
4638
Linus Torvalds1da177e2005-04-16 15:20:36 -07004639/**
Brian Kingc6513092006-03-29 09:37:43 -06004640 * ipr_device_reset - Reset the device
4641 * @ioa_cfg: ioa config struct
4642 * @res: resource entry struct
4643 *
4644 * This function issues a device reset to the affected device.
4645 * If the device is a SCSI device, a LUN reset will be sent
4646 * to the device first. If that does not work, a target reset
Brian King35a39692006-09-25 12:39:20 -05004647 * will be sent. If the device is a SATA device, a PHY reset will
4648 * be sent.
Brian Kingc6513092006-03-29 09:37:43 -06004649 *
4650 * Return value:
4651 * 0 on success / non-zero on failure
4652 **/
4653static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4654 struct ipr_resource_entry *res)
4655{
4656 struct ipr_cmnd *ipr_cmd;
4657 struct ipr_ioarcb *ioarcb;
4658 struct ipr_cmd_pkt *cmd_pkt;
Brian King35a39692006-09-25 12:39:20 -05004659 struct ipr_ioarcb_ata_regs *regs;
Brian Kingc6513092006-03-29 09:37:43 -06004660 u32 ioasc;
4661
4662 ENTER;
4663 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4664 ioarcb = &ipr_cmd->ioarcb;
4665 cmd_pkt = &ioarcb->cmd_pkt;
Wayne Boyera32c0552010-02-19 13:23:36 -08004666
4667 if (ipr_cmd->ioa_cfg->sis64) {
4668 regs = &ipr_cmd->i.ata_ioadl.regs;
4669 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4670 } else
4671 regs = &ioarcb->u.add_data.u.regs;
Brian Kingc6513092006-03-29 09:37:43 -06004672
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004673 ioarcb->res_handle = res->res_handle;
Brian Kingc6513092006-03-29 09:37:43 -06004674 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4675 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
Brian King35a39692006-09-25 12:39:20 -05004676 if (ipr_is_gata(res)) {
4677 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
Wayne Boyera32c0552010-02-19 13:23:36 -08004678 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
Brian King35a39692006-09-25 12:39:20 -05004679 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4680 }
Brian Kingc6513092006-03-29 09:37:43 -06004681
4682 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
Wayne Boyer96d21f02010-05-10 09:13:27 -07004683 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Brian Kingc6513092006-03-29 09:37:43 -06004684 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
Wayne Boyer96d21f02010-05-10 09:13:27 -07004685 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4686 if (ipr_cmd->ioa_cfg->sis64)
4687 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4688 sizeof(struct ipr_ioasa_gata));
4689 else
4690 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4691 sizeof(struct ipr_ioasa_gata));
4692 }
Brian Kingc6513092006-03-29 09:37:43 -06004693
4694 LEAVE;
4695 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4696}
4697
4698/**
Brian King35a39692006-09-25 12:39:20 -05004699 * ipr_sata_reset - Reset the SATA port
Tejun Heocc0680a2007-08-06 18:36:23 +09004700 * @link: SATA link to reset
Brian King35a39692006-09-25 12:39:20 -05004701 * @classes: class of the attached device
4702 *
Tejun Heocc0680a2007-08-06 18:36:23 +09004703 * This function issues a SATA phy reset to the affected ATA link.
Brian King35a39692006-09-25 12:39:20 -05004704 *
4705 * Return value:
4706 * 0 on success / non-zero on failure
4707 **/
Tejun Heocc0680a2007-08-06 18:36:23 +09004708static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
Andrew Morton120bda32007-03-26 02:17:43 -07004709 unsigned long deadline)
Brian King35a39692006-09-25 12:39:20 -05004710{
Tejun Heocc0680a2007-08-06 18:36:23 +09004711 struct ipr_sata_port *sata_port = link->ap->private_data;
Brian King35a39692006-09-25 12:39:20 -05004712 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4713 struct ipr_resource_entry *res;
4714 unsigned long lock_flags = 0;
4715 int rc = -ENXIO;
4716
4717 ENTER;
4718 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King73d98ff2006-11-21 10:27:58 -06004719 while(ioa_cfg->in_reset_reload) {
4720 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4721 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4722 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4723 }
4724
Brian King35a39692006-09-25 12:39:20 -05004725 res = sata_port->res;
4726 if (res) {
4727 rc = ipr_device_reset(ioa_cfg, res);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004728 *classes = res->ata_class;
Brian King35a39692006-09-25 12:39:20 -05004729 }
4730
4731 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4732 LEAVE;
4733 return rc;
4734}
4735
4736/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07004737 * ipr_eh_dev_reset - Reset the device
4738 * @scsi_cmd: scsi command struct
4739 *
4740 * This function issues a device reset to the affected device.
4741 * A LUN reset will be sent to the device first. If that does
4742 * not work, a target reset will be sent.
4743 *
4744 * Return value:
4745 * SUCCESS / FAILED
4746 **/
Jeff Garzik 94d0e7b2005-05-28 07:55:48 -04004747static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004748{
4749 struct ipr_cmnd *ipr_cmd;
4750 struct ipr_ioa_cfg *ioa_cfg;
4751 struct ipr_resource_entry *res;
Brian King35a39692006-09-25 12:39:20 -05004752 struct ata_port *ap;
4753 int rc = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004754
4755 ENTER;
4756 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4757 res = scsi_cmd->device->hostdata;
4758
brking@us.ibm.comeeb88302005-11-01 17:02:29 -06004759 if (!res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004760 return FAILED;
4761
4762 /*
4763 * If we are currently going through reset/reload, return failed. This will force the
4764 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4765 * reset to complete
4766 */
4767 if (ioa_cfg->in_reset_reload)
4768 return FAILED;
4769 if (ioa_cfg->ioa_is_dead)
4770 return FAILED;
4771
4772 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004773 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07004774 if (ipr_cmd->scsi_cmd)
4775 ipr_cmd->done = ipr_scsi_eh_done;
Brian King24d6f2b2007-03-29 12:43:17 -05004776 if (ipr_cmd->qc)
4777 ipr_cmd->done = ipr_sata_eh_done;
Brian King7402ece2006-11-21 10:28:23 -06004778 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4779 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4780 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4781 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004782 }
4783 }
4784
4785 res->resetting_device = 1;
Brian Kingfb3ed3c2006-03-29 09:37:37 -06004786 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
Brian King35a39692006-09-25 12:39:20 -05004787
4788 if (ipr_is_gata(res) && res->sata_port) {
4789 ap = res->sata_port->ap;
4790 spin_unlock_irq(scsi_cmd->device->host->host_lock);
Tejun Heoa1efdab2008-03-25 12:22:50 +09004791 ata_std_error_handler(ap);
Brian King35a39692006-09-25 12:39:20 -05004792 spin_lock_irq(scsi_cmd->device->host->host_lock);
Brian King5af23d22007-05-09 15:36:35 -05004793
4794 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004795 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
Brian King5af23d22007-05-09 15:36:35 -05004796 rc = -EIO;
4797 break;
4798 }
4799 }
Brian King35a39692006-09-25 12:39:20 -05004800 } else
4801 rc = ipr_device_reset(ioa_cfg, res);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004802 res->resetting_device = 0;
4803
Linus Torvalds1da177e2005-04-16 15:20:36 -07004804 LEAVE;
Brian Kingc6513092006-03-29 09:37:43 -06004805 return (rc ? FAILED : SUCCESS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004806}
4807
Jeff Garzik 94d0e7b2005-05-28 07:55:48 -04004808static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4809{
4810 int rc;
4811
4812 spin_lock_irq(cmd->device->host->host_lock);
4813 rc = __ipr_eh_dev_reset(cmd);
4814 spin_unlock_irq(cmd->device->host->host_lock);
4815
4816 return rc;
4817}
4818
Linus Torvalds1da177e2005-04-16 15:20:36 -07004819/**
4820 * ipr_bus_reset_done - Op done function for bus reset.
4821 * @ipr_cmd: ipr command struct
4822 *
4823 * This function is the op done function for a bus reset
4824 *
4825 * Return value:
4826 * none
4827 **/
4828static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4829{
4830 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4831 struct ipr_resource_entry *res;
4832
4833 ENTER;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004834 if (!ioa_cfg->sis64)
4835 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4836 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4837 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4838 break;
4839 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004840 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07004841
4842 /*
4843 * If abort has not completed, indicate the reset has, else call the
4844 * abort's done function to wake the sleeping eh thread
4845 */
4846 if (ipr_cmd->sibling->sibling)
4847 ipr_cmd->sibling->sibling = NULL;
4848 else
4849 ipr_cmd->sibling->done(ipr_cmd->sibling);
4850
4851 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4852 LEAVE;
4853}
4854
4855/**
4856 * ipr_abort_timeout - An abort task has timed out
4857 * @ipr_cmd: ipr command struct
4858 *
4859 * This function handles when an abort task times out. If this
4860 * happens we issue a bus reset since we have resources tied
4861 * up that must be freed before returning to the midlayer.
4862 *
4863 * Return value:
4864 * none
4865 **/
4866static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4867{
4868 struct ipr_cmnd *reset_cmd;
4869 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4870 struct ipr_cmd_pkt *cmd_pkt;
4871 unsigned long lock_flags = 0;
4872
4873 ENTER;
4874 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4875 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4876 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4877 return;
4878 }
4879
Brian Kingfb3ed3c2006-03-29 09:37:37 -06004880 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -07004881 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4882 ipr_cmd->sibling = reset_cmd;
4883 reset_cmd->sibling = ipr_cmd;
4884 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4885 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4886 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4887 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4888 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4889
4890 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4891 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4892 LEAVE;
4893}
4894
4895/**
4896 * ipr_cancel_op - Cancel specified op
4897 * @scsi_cmd: scsi command struct
4898 *
4899 * This function cancels specified op.
4900 *
4901 * Return value:
4902 * SUCCESS / FAILED
4903 **/
4904static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4905{
4906 struct ipr_cmnd *ipr_cmd;
4907 struct ipr_ioa_cfg *ioa_cfg;
4908 struct ipr_resource_entry *res;
4909 struct ipr_cmd_pkt *cmd_pkt;
4910 u32 ioasc;
4911 int op_found = 0;
4912
4913 ENTER;
4914 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4915 res = scsi_cmd->device->hostdata;
4916
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04004917 /* If we are currently going through reset/reload, return failed.
4918 * This will force the mid-layer to call ipr_eh_host_reset,
4919 * which will then go to sleep and wait for the reset to complete
4920 */
4921 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4922 return FAILED;
Brian King04d97682006-11-21 10:28:04 -06004923 if (!res || !ipr_is_gscsi(res))
Linus Torvalds1da177e2005-04-16 15:20:36 -07004924 return FAILED;
4925
4926 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4927 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4928 ipr_cmd->done = ipr_scsi_eh_done;
4929 op_found = 1;
4930 break;
4931 }
4932 }
4933
4934 if (!op_found)
4935 return SUCCESS;
4936
4937 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08004938 ipr_cmd->ioarcb.res_handle = res->res_handle;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004939 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4940 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4941 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4942 ipr_cmd->u.sdev = scsi_cmd->device;
4943
Brian Kingfb3ed3c2006-03-29 09:37:37 -06004944 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4945 scsi_cmd->cmnd[0]);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004946 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
Wayne Boyer96d21f02010-05-10 09:13:27 -07004947 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004948
4949 /*
4950 * If the abort task timed out and we sent a bus reset, we will get
4951 * one the following responses to the abort
4952 */
4953 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4954 ioasc = 0;
4955 ipr_trace;
4956 }
4957
4958 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06004959 if (!ipr_is_naca_model(res))
4960 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004961
4962 LEAVE;
4963 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4964}
4965
4966/**
4967 * ipr_eh_abort - Abort a single op
4968 * @scsi_cmd: scsi command struct
4969 *
4970 * Return value:
4971 * SUCCESS / FAILED
4972 **/
4973static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4974{
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04004975 unsigned long flags;
4976 int rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004977
4978 ENTER;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004979
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04004980 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4981 rc = ipr_cancel_op(scsi_cmd);
4982 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -07004983
4984 LEAVE;
Jeff Garzik 8fa728a2005-05-28 07:54:40 -04004985 return rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07004986}
4987
4988/**
4989 * ipr_handle_other_interrupt - Handle "other" interrupts
4990 * @ioa_cfg: ioa config struct
Wayne Boyer634651f2010-08-27 14:45:07 -07004991 * @int_reg: interrupt register
Linus Torvalds1da177e2005-04-16 15:20:36 -07004992 *
4993 * Return value:
4994 * IRQ_NONE / IRQ_HANDLED
4995 **/
Wayne Boyer634651f2010-08-27 14:45:07 -07004996static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
Wayne Boyer630ad832011-04-07 12:12:30 -07004997 u32 int_reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -07004998{
4999 irqreturn_t rc = IRQ_HANDLED;
Wayne Boyer7dacb642011-04-12 10:29:02 -07005000 u32 int_mask_reg;
5001
5002 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5003 int_reg &= ~int_mask_reg;
5004
5005 /* If an interrupt on the adapter did not occur, ignore it.
5006 * Or in the case of SIS 64, check for a stage change interrupt.
5007 */
5008 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5009 if (ioa_cfg->sis64) {
5010 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5011 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5012 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5013
5014 /* clear stage change */
5015 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5016 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5017 list_del(&ioa_cfg->reset_cmd->queue);
5018 del_timer(&ioa_cfg->reset_cmd->timer);
5019 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5020 return IRQ_HANDLED;
5021 }
5022 }
5023
5024 return IRQ_NONE;
5025 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005026
5027 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5028 /* Mask the interrupt */
5029 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5030
5031 /* Clear the interrupt */
5032 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5033 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5034
5035 list_del(&ioa_cfg->reset_cmd->queue);
5036 del_timer(&ioa_cfg->reset_cmd->timer);
5037 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
Wayne Boyer7dacb642011-04-12 10:29:02 -07005038 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5039 if (ipr_debug && printk_ratelimit())
5040 dev_err(&ioa_cfg->pdev->dev,
5041 "Spurious interrupt detected. 0x%08X\n", int_reg);
5042 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5043 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5044 return IRQ_NONE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005045 } else {
5046 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5047 ioa_cfg->ioa_unit_checked = 1;
5048 else
5049 dev_err(&ioa_cfg->pdev->dev,
5050 "Permanent IOA failure. 0x%08X\n", int_reg);
5051
5052 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5053 ioa_cfg->sdt_state = GET_DUMP;
5054
5055 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5056 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5057 }
5058
5059 return rc;
5060}
5061
5062/**
Wayne Boyer3feeb892009-10-20 11:09:00 -07005063 * ipr_isr_eh - Interrupt service routine error handler
5064 * @ioa_cfg: ioa config struct
5065 * @msg: message to log
5066 *
5067 * Return value:
5068 * none
5069 **/
5070static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
5071{
5072 ioa_cfg->errors_logged++;
5073 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5074
5075 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5076 ioa_cfg->sdt_state = GET_DUMP;
5077
5078 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5079}
5080
5081/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07005082 * ipr_isr - Interrupt service routine
5083 * @irq: irq number
5084 * @devp: pointer to ioa config struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07005085 *
5086 * Return value:
5087 * IRQ_NONE / IRQ_HANDLED
5088 **/
David Howells7d12e782006-10-05 14:55:46 +01005089static irqreturn_t ipr_isr(int irq, void *devp)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005090{
5091 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5092 unsigned long lock_flags = 0;
Wayne Boyer7dacb642011-04-12 10:29:02 -07005093 u32 int_reg = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005094 u32 ioasc;
5095 u16 cmd_index;
Wayne Boyer3feeb892009-10-20 11:09:00 -07005096 int num_hrrq = 0;
Wayne Boyer7dacb642011-04-12 10:29:02 -07005097 int irq_none = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005098 struct ipr_cmnd *ipr_cmd;
5099 irqreturn_t rc = IRQ_NONE;
5100
5101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5102
5103 /* If interrupts are disabled, ignore the interrupt */
5104 if (!ioa_cfg->allow_interrupts) {
5105 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5106 return IRQ_NONE;
5107 }
5108
Linus Torvalds1da177e2005-04-16 15:20:36 -07005109 while (1) {
5110 ipr_cmd = NULL;
5111
5112 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5113 ioa_cfg->toggle_bit) {
5114
5115 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5116 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5117
5118 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
Wayne Boyer3feeb892009-10-20 11:09:00 -07005119 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
Linus Torvalds1da177e2005-04-16 15:20:36 -07005120 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5121 return IRQ_HANDLED;
5122 }
5123
5124 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5125
Wayne Boyer96d21f02010-05-10 09:13:27 -07005126 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005127
5128 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5129
5130 list_del(&ipr_cmd->queue);
5131 del_timer(&ipr_cmd->timer);
5132 ipr_cmd->done(ipr_cmd);
5133
5134 rc = IRQ_HANDLED;
5135
5136 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5137 ioa_cfg->hrrq_curr++;
5138 } else {
5139 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5140 ioa_cfg->toggle_bit ^= 1u;
5141 }
5142 }
5143
5144 if (ipr_cmd != NULL) {
5145 /* Clear the PCI interrupt */
Wayne Boyera5442ba2011-05-17 09:18:53 -07005146 num_hrrq = 0;
Wayne Boyer3feeb892009-10-20 11:09:00 -07005147 do {
Wayne Boyer214777b2010-02-19 13:24:26 -08005148 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
Wayne Boyer7dacb642011-04-12 10:29:02 -07005149 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
Wayne Boyer3feeb892009-10-20 11:09:00 -07005150 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5151 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5152
Wayne Boyer7dacb642011-04-12 10:29:02 -07005153 } else if (rc == IRQ_NONE && irq_none == 0) {
5154 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5155 irq_none++;
Wayne Boyera5442ba2011-05-17 09:18:53 -07005156 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5157 int_reg & IPR_PCII_HRRQ_UPDATED) {
5158 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5160 return IRQ_HANDLED;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005161 } else
5162 break;
5163 }
5164
5165 if (unlikely(rc == IRQ_NONE))
Wayne Boyer634651f2010-08-27 14:45:07 -07005166 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005167
5168 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5169 return rc;
5170}
5171
5172/**
Wayne Boyera32c0552010-02-19 13:23:36 -08005173 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
Linus Torvalds1da177e2005-04-16 15:20:36 -07005174 * @ioa_cfg: ioa config struct
5175 * @ipr_cmd: ipr command struct
5176 *
5177 * Return value:
5178 * 0 on success / -1 on failure
5179 **/
Wayne Boyera32c0552010-02-19 13:23:36 -08005180static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5181 struct ipr_cmnd *ipr_cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005182{
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005183 int i, nseg;
5184 struct scatterlist *sg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005185 u32 length;
5186 u32 ioadl_flags = 0;
5187 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5188 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyera32c0552010-02-19 13:23:36 -08005189 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005190
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005191 length = scsi_bufflen(scsi_cmd);
5192 if (!length)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005193 return 0;
5194
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005195 nseg = scsi_dma_map(scsi_cmd);
5196 if (nseg < 0) {
Anton Blanchard51f52a42011-05-09 10:07:40 +10005197 if (printk_ratelimit())
5198 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005199 return -1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005200 }
5201
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005202 ipr_cmd->dma_use_sg = nseg;
5203
Wayne Boyer438b0332010-05-10 09:13:00 -07005204 ioarcb->data_transfer_length = cpu_to_be32(length);
Wayne Boyerb8803b12010-05-14 08:55:13 -07005205 ioarcb->ioadl_len =
5206 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
Wayne Boyer438b0332010-05-10 09:13:00 -07005207
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005208 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5209 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5210 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
Wayne Boyera32c0552010-02-19 13:23:36 -08005211 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5212 ioadl_flags = IPR_IOADL_FLAGS_READ;
5213
5214 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5215 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5216 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5217 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5218 }
5219
5220 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5221 return 0;
5222}
5223
5224/**
5225 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5226 * @ioa_cfg: ioa config struct
5227 * @ipr_cmd: ipr command struct
5228 *
5229 * Return value:
5230 * 0 on success / -1 on failure
5231 **/
5232static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5233 struct ipr_cmnd *ipr_cmd)
5234{
5235 int i, nseg;
5236 struct scatterlist *sg;
5237 u32 length;
5238 u32 ioadl_flags = 0;
5239 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5240 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5241 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5242
5243 length = scsi_bufflen(scsi_cmd);
5244 if (!length)
5245 return 0;
5246
5247 nseg = scsi_dma_map(scsi_cmd);
5248 if (nseg < 0) {
5249 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5250 return -1;
5251 }
5252
5253 ipr_cmd->dma_use_sg = nseg;
5254
5255 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5256 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5257 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5258 ioarcb->data_transfer_length = cpu_to_be32(length);
5259 ioarcb->ioadl_len =
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005260 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5261 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5262 ioadl_flags = IPR_IOADL_FLAGS_READ;
5263 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5264 ioarcb->read_ioadl_len =
5265 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5266 }
5267
Wayne Boyera32c0552010-02-19 13:23:36 -08005268 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5269 ioadl = ioarcb->u.add_data.u.ioadl;
5270 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5271 offsetof(struct ipr_ioarcb, u.add_data));
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005272 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5273 }
5274
5275 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5276 ioadl[i].flags_and_data_len =
5277 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5278 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5279 }
5280
5281 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5282 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005283}
5284
5285/**
5286 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5287 * @scsi_cmd: scsi command struct
5288 *
5289 * Return value:
5290 * task attributes
5291 **/
5292static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5293{
5294 u8 tag[2];
5295 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5296
5297 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5298 switch (tag[0]) {
5299 case MSG_SIMPLE_TAG:
5300 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5301 break;
5302 case MSG_HEAD_TAG:
5303 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5304 break;
5305 case MSG_ORDERED_TAG:
5306 rc = IPR_FLAGS_LO_ORDERED_TASK;
5307 break;
5308 };
5309 }
5310
5311 return rc;
5312}
5313
5314/**
5315 * ipr_erp_done - Process completion of ERP for a device
5316 * @ipr_cmd: ipr command struct
5317 *
5318 * This function copies the sense buffer into the scsi_cmd
5319 * struct and pushes the scsi_done function.
5320 *
5321 * Return value:
5322 * nothing
5323 **/
5324static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5325{
5326 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5327 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5328 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005329 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005330
5331 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5332 scsi_cmd->result |= (DID_ERROR << 16);
Brian Kingfb3ed3c2006-03-29 09:37:37 -06005333 scmd_printk(KERN_ERR, scsi_cmd,
5334 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005335 } else {
5336 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5337 SCSI_SENSE_BUFFERSIZE);
5338 }
5339
5340 if (res) {
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005341 if (!ipr_is_naca_model(res))
5342 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005343 res->in_erp = 0;
5344 }
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005345 scsi_dma_unmap(ipr_cmd->scsi_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005346 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5347 scsi_cmd->scsi_done(scsi_cmd);
5348}
5349
5350/**
5351 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5352 * @ipr_cmd: ipr command struct
5353 *
5354 * Return value:
5355 * none
5356 **/
5357static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5358{
Brian King51b1c7e2007-03-29 12:43:50 -05005359 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005360 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
Wayne Boyera32c0552010-02-19 13:23:36 -08005361 dma_addr_t dma_addr = ipr_cmd->dma_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005362
5363 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
Wayne Boyera32c0552010-02-19 13:23:36 -08005364 ioarcb->data_transfer_length = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005365 ioarcb->read_data_transfer_length = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -08005366 ioarcb->ioadl_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005367 ioarcb->read_ioadl_len = 0;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005368 ioasa->hdr.ioasc = 0;
5369 ioasa->hdr.residual_data_len = 0;
Wayne Boyera32c0552010-02-19 13:23:36 -08005370
5371 if (ipr_cmd->ioa_cfg->sis64)
5372 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5373 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5374 else {
5375 ioarcb->write_ioadl_addr =
5376 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5377 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5378 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005379}
5380
5381/**
5382 * ipr_erp_request_sense - Send request sense to a device
5383 * @ipr_cmd: ipr command struct
5384 *
5385 * This function sends a request sense to a device as a result
5386 * of a check condition.
5387 *
5388 * Return value:
5389 * nothing
5390 **/
5391static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5392{
5393 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005394 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005395
5396 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5397 ipr_erp_done(ipr_cmd);
5398 return;
5399 }
5400
5401 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5402
5403 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5404 cmd_pkt->cdb[0] = REQUEST_SENSE;
5405 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5406 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5407 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5408 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5409
Wayne Boyera32c0552010-02-19 13:23:36 -08005410 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5411 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005412
5413 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5414 IPR_REQUEST_SENSE_TIMEOUT * 2);
5415}
5416
5417/**
5418 * ipr_erp_cancel_all - Send cancel all to a device
5419 * @ipr_cmd: ipr command struct
5420 *
5421 * This function sends a cancel all to a device to clear the
5422 * queue. If we are running TCQ on the device, QERR is set to 1,
5423 * which means all outstanding ops have been dropped on the floor.
5424 * Cancel all will return them to us.
5425 *
5426 * Return value:
5427 * nothing
5428 **/
5429static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5430{
5431 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5432 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5433 struct ipr_cmd_pkt *cmd_pkt;
5434
5435 res->in_erp = 1;
5436
5437 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5438
5439 if (!scsi_get_tag_type(scsi_cmd->device)) {
5440 ipr_erp_request_sense(ipr_cmd);
5441 return;
5442 }
5443
5444 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5445 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5446 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5447
5448 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5449 IPR_CANCEL_ALL_TIMEOUT);
5450}
5451
5452/**
5453 * ipr_dump_ioasa - Dump contents of IOASA
5454 * @ioa_cfg: ioa config struct
5455 * @ipr_cmd: ipr command struct
Brian Kingfe964d02006-03-29 09:37:29 -06005456 * @res: resource entry struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07005457 *
5458 * This function is invoked by the interrupt handler when ops
5459 * fail. It will log the IOASA if appropriate. Only called
5460 * for GPDD ops.
5461 *
5462 * Return value:
5463 * none
5464 **/
5465static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
Brian Kingfe964d02006-03-29 09:37:29 -06005466 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005467{
5468 int i;
5469 u16 data_len;
Brian Kingb0692dd2007-03-29 12:43:09 -05005470 u32 ioasc, fd_ioasc;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005471 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005472 __be32 *ioasa_data = (__be32 *)ioasa;
5473 int error_index;
5474
Wayne Boyer96d21f02010-05-10 09:13:27 -07005475 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5476 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005477
5478 if (0 == ioasc)
5479 return;
5480
5481 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5482 return;
5483
Brian Kingb0692dd2007-03-29 12:43:09 -05005484 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5485 error_index = ipr_get_error(fd_ioasc);
5486 else
5487 error_index = ipr_get_error(ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005488
5489 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5490 /* Don't log an error if the IOA already logged one */
Wayne Boyer96d21f02010-05-10 09:13:27 -07005491 if (ioasa->hdr.ilid != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005492 return;
5493
Brian Kingcc9bd5d2007-03-29 12:43:01 -05005494 if (!ipr_is_gscsi(res))
5495 return;
5496
Linus Torvalds1da177e2005-04-16 15:20:36 -07005497 if (ipr_error_table[error_index].log_ioasa == 0)
5498 return;
5499 }
5500
Brian Kingfe964d02006-03-29 09:37:29 -06005501 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005502
Wayne Boyer96d21f02010-05-10 09:13:27 -07005503 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5504 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5505 data_len = sizeof(struct ipr_ioasa64);
5506 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005507 data_len = sizeof(struct ipr_ioasa);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005508
5509 ipr_err("IOASA Dump:\n");
5510
5511 for (i = 0; i < data_len / 4; i += 4) {
5512 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5513 be32_to_cpu(ioasa_data[i]),
5514 be32_to_cpu(ioasa_data[i+1]),
5515 be32_to_cpu(ioasa_data[i+2]),
5516 be32_to_cpu(ioasa_data[i+3]));
5517 }
5518}
5519
5520/**
5521 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5522 * @ioasa: IOASA
5523 * @sense_buf: sense data buffer
5524 *
5525 * Return value:
5526 * none
5527 **/
5528static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5529{
5530 u32 failing_lba;
5531 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5532 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005533 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5534 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005535
5536 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5537
5538 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5539 return;
5540
5541 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5542
5543 if (ipr_is_vset_device(res) &&
5544 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5545 ioasa->u.vset.failing_lba_hi != 0) {
5546 sense_buf[0] = 0x72;
5547 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5548 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5549 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5550
5551 sense_buf[7] = 12;
5552 sense_buf[8] = 0;
5553 sense_buf[9] = 0x0A;
5554 sense_buf[10] = 0x80;
5555
5556 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5557
5558 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5559 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5560 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5561 sense_buf[15] = failing_lba & 0x000000ff;
5562
5563 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5564
5565 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5566 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5567 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5568 sense_buf[19] = failing_lba & 0x000000ff;
5569 } else {
5570 sense_buf[0] = 0x70;
5571 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5572 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5573 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5574
5575 /* Illegal request */
5576 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
Wayne Boyer96d21f02010-05-10 09:13:27 -07005577 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005578 sense_buf[7] = 10; /* additional length */
5579
5580 /* IOARCB was in error */
5581 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5582 sense_buf[15] = 0xC0;
5583 else /* Parameter data was invalid */
5584 sense_buf[15] = 0x80;
5585
5586 sense_buf[16] =
5587 ((IPR_FIELD_POINTER_MASK &
Wayne Boyer96d21f02010-05-10 09:13:27 -07005588 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005589 sense_buf[17] =
5590 (IPR_FIELD_POINTER_MASK &
Wayne Boyer96d21f02010-05-10 09:13:27 -07005591 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005592 } else {
5593 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5594 if (ipr_is_vset_device(res))
5595 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5596 else
5597 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5598
5599 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5600 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5601 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5602 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5603 sense_buf[6] = failing_lba & 0x000000ff;
5604 }
5605
5606 sense_buf[7] = 6; /* additional length */
5607 }
5608 }
5609}
5610
5611/**
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005612 * ipr_get_autosense - Copy autosense data to sense buffer
5613 * @ipr_cmd: ipr command struct
5614 *
5615 * This function copies the autosense buffer to the buffer
5616 * in the scsi_cmd, if there is autosense available.
5617 *
5618 * Return value:
5619 * 1 if autosense was available / 0 if not
5620 **/
5621static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5622{
Wayne Boyer96d21f02010-05-10 09:13:27 -07005623 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5624 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005625
Wayne Boyer96d21f02010-05-10 09:13:27 -07005626 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005627 return 0;
5628
Wayne Boyer96d21f02010-05-10 09:13:27 -07005629 if (ipr_cmd->ioa_cfg->sis64)
5630 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5631 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5632 SCSI_SENSE_BUFFERSIZE));
5633 else
5634 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5635 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5636 SCSI_SENSE_BUFFERSIZE));
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005637 return 1;
5638}
5639
5640/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07005641 * ipr_erp_start - Process an error response for a SCSI op
5642 * @ioa_cfg: ioa config struct
5643 * @ipr_cmd: ipr command struct
5644 *
5645 * This function determines whether or not to initiate ERP
5646 * on the affected device.
5647 *
5648 * Return value:
5649 * nothing
5650 **/
5651static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5652 struct ipr_cmnd *ipr_cmd)
5653{
5654 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5655 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005656 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Brian King8a048992007-04-26 16:00:10 -05005657 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005658
5659 if (!res) {
5660 ipr_scsi_eh_done(ipr_cmd);
5661 return;
5662 }
5663
Brian King8a048992007-04-26 16:00:10 -05005664 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005665 ipr_gen_sense(ipr_cmd);
5666
Brian Kingcc9bd5d2007-03-29 12:43:01 -05005667 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5668
Brian King8a048992007-04-26 16:00:10 -05005669 switch (masked_ioasc) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07005670 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005671 if (ipr_is_naca_model(res))
5672 scsi_cmd->result |= (DID_ABORT << 16);
5673 else
5674 scsi_cmd->result |= (DID_IMM_RETRY << 16);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005675 break;
5676 case IPR_IOASC_IR_RESOURCE_HANDLE:
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06005677 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
Linus Torvalds1da177e2005-04-16 15:20:36 -07005678 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5679 break;
5680 case IPR_IOASC_HW_SEL_TIMEOUT:
5681 scsi_cmd->result |= (DID_NO_CONNECT << 16);
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005682 if (!ipr_is_naca_model(res))
5683 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005684 break;
5685 case IPR_IOASC_SYNC_REQUIRED:
5686 if (!res->in_erp)
5687 res->needs_sync_complete = 1;
5688 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5689 break;
5690 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
brking@us.ibm.comb0df54b2005-11-01 17:01:47 -06005691 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
Linus Torvalds1da177e2005-04-16 15:20:36 -07005692 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5693 break;
5694 case IPR_IOASC_BUS_WAS_RESET:
5695 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5696 /*
5697 * Report the bus reset and ask for a retry. The device
5698 * will give CC/UA the next command.
5699 */
5700 if (!res->resetting_device)
5701 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5702 scsi_cmd->result |= (DID_ERROR << 16);
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005703 if (!ipr_is_naca_model(res))
5704 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005705 break;
5706 case IPR_IOASC_HW_DEV_BUS_STATUS:
5707 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5708 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005709 if (!ipr_get_autosense(ipr_cmd)) {
5710 if (!ipr_is_naca_model(res)) {
5711 ipr_erp_cancel_all(ipr_cmd);
5712 return;
5713 }
5714 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005715 }
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005716 if (!ipr_is_naca_model(res))
5717 res->needs_sync_complete = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005718 break;
5719 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5720 break;
5721 default:
Brian King5b7304f2006-08-02 14:57:51 -05005722 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5723 scsi_cmd->result |= (DID_ERROR << 16);
brking@us.ibm.comee0a90f2005-11-01 17:02:22 -06005724 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
Linus Torvalds1da177e2005-04-16 15:20:36 -07005725 res->needs_sync_complete = 1;
5726 break;
5727 }
5728
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005729 scsi_dma_unmap(ipr_cmd->scsi_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5731 scsi_cmd->scsi_done(scsi_cmd);
5732}
5733
5734/**
5735 * ipr_scsi_done - mid-layer done function
5736 * @ipr_cmd: ipr command struct
5737 *
5738 * This function is invoked by the interrupt handler for
5739 * ops generated by the SCSI mid-layer
5740 *
5741 * Return value:
5742 * none
5743 **/
5744static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5745{
5746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
Wayne Boyer96d21f02010-05-10 09:13:27 -07005748 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005749
Wayne Boyer96d21f02010-05-10 09:13:27 -07005750 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005751
5752 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
FUJITA Tomonori63015bc2007-05-26 00:26:59 +09005753 scsi_dma_unmap(ipr_cmd->scsi_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005754 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5755 scsi_cmd->scsi_done(scsi_cmd);
5756 } else
5757 ipr_erp_start(ioa_cfg, ipr_cmd);
5758}
5759
5760/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07005761 * ipr_queuecommand - Queue a mid-layer request
5762 * @scsi_cmd: scsi command struct
5763 * @done: done function
5764 *
5765 * This function queues a request generated by the mid-layer.
5766 *
5767 * Return value:
5768 * 0 on success
5769 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5770 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5771 **/
Jeff Garzikf2812332010-11-16 02:10:29 -05005772static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005773 void (*done) (struct scsi_cmnd *))
5774{
5775 struct ipr_ioa_cfg *ioa_cfg;
5776 struct ipr_resource_entry *res;
5777 struct ipr_ioarcb *ioarcb;
5778 struct ipr_cmnd *ipr_cmd;
5779 int rc = 0;
5780
5781 scsi_cmd->scsi_done = done;
5782 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5783 res = scsi_cmd->device->hostdata;
5784 scsi_cmd->result = (DID_OK << 16);
5785
5786 /*
5787 * We are currently blocking all devices due to a host reset
5788 * We have told the host to stop giving us new requests, but
5789 * ERP ops don't count. FIXME
5790 */
5791 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5792 return SCSI_MLQUEUE_HOST_BUSY;
5793
5794 /*
5795 * FIXME - Create scsi_set_host_offline interface
5796 * and the ioa_is_dead check can be removed
5797 */
5798 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5799 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5800 scsi_cmd->result = (DID_NO_CONNECT << 16);
5801 scsi_cmd->scsi_done(scsi_cmd);
5802 return 0;
5803 }
5804
Brian King35a39692006-09-25 12:39:20 -05005805 if (ipr_is_gata(res) && res->sata_port)
Jeff Garzikb27dcfb2010-11-17 22:56:48 -05005806 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
Brian King35a39692006-09-25 12:39:20 -05005807
Linus Torvalds1da177e2005-04-16 15:20:36 -07005808 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5809 ioarcb = &ipr_cmd->ioarcb;
5810 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5811
5812 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5813 ipr_cmd->scsi_cmd = scsi_cmd;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08005814 ioarcb->res_handle = res->res_handle;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005815 ipr_cmd->done = ipr_scsi_done;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08005816 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
Linus Torvalds1da177e2005-04-16 15:20:36 -07005817
5818 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5819 if (scsi_cmd->underflow == 0)
5820 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5821
5822 if (res->needs_sync_complete) {
5823 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5824 res->needs_sync_complete = 0;
5825 }
5826
5827 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
Wayne Boyerab6c10b2011-03-31 09:56:10 -07005828 if (ipr_is_gscsi(res))
5829 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
Linus Torvalds1da177e2005-04-16 15:20:36 -07005830 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5831 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5832 }
5833
5834 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5835 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5836 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5837
Wayne Boyera32c0552010-02-19 13:23:36 -08005838 if (likely(rc == 0)) {
5839 if (ioa_cfg->sis64)
5840 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5841 else
5842 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5843 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07005844
5845 if (likely(rc == 0)) {
5846 mb();
Wayne Boyera32c0552010-02-19 13:23:36 -08005847 ipr_send_command(ipr_cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -07005848 } else {
5849 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5850 return SCSI_MLQUEUE_HOST_BUSY;
5851 }
5852
5853 return 0;
5854}
5855
Jeff Garzikf2812332010-11-16 02:10:29 -05005856static DEF_SCSI_QCMD(ipr_queuecommand)
5857
Linus Torvalds1da177e2005-04-16 15:20:36 -07005858/**
Brian King35a39692006-09-25 12:39:20 -05005859 * ipr_ioctl - IOCTL handler
5860 * @sdev: scsi device struct
5861 * @cmd: IOCTL cmd
5862 * @arg: IOCTL arg
5863 *
5864 * Return value:
5865 * 0 on success / other on failure
5866 **/
Adrian Bunkbd705f22006-11-21 10:28:48 -06005867static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
Brian King35a39692006-09-25 12:39:20 -05005868{
5869 struct ipr_resource_entry *res;
5870
5871 res = (struct ipr_resource_entry *)sdev->hostdata;
Brian King0ce3a7e2008-07-11 13:37:50 -05005872 if (res && ipr_is_gata(res)) {
5873 if (cmd == HDIO_GET_IDENTITY)
5874 return -ENOTTY;
Jeff Garzik94be9a52009-01-16 10:17:09 -05005875 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
Brian King0ce3a7e2008-07-11 13:37:50 -05005876 }
Brian King35a39692006-09-25 12:39:20 -05005877
5878 return -EINVAL;
5879}
5880
5881/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07005882 * ipr_info - Get information about the card/driver
5883 * @scsi_host: scsi host struct
5884 *
5885 * Return value:
5886 * pointer to buffer with description string
5887 **/
5888static const char * ipr_ioa_info(struct Scsi_Host *host)
5889{
5890 static char buffer[512];
5891 struct ipr_ioa_cfg *ioa_cfg;
5892 unsigned long lock_flags = 0;
5893
5894 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5895
5896 spin_lock_irqsave(host->host_lock, lock_flags);
5897 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5898 spin_unlock_irqrestore(host->host_lock, lock_flags);
5899
5900 return buffer;
5901}
5902
5903static struct scsi_host_template driver_template = {
5904 .module = THIS_MODULE,
5905 .name = "IPR",
5906 .info = ipr_ioa_info,
Brian King35a39692006-09-25 12:39:20 -05005907 .ioctl = ipr_ioctl,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005908 .queuecommand = ipr_queuecommand,
5909 .eh_abort_handler = ipr_eh_abort,
5910 .eh_device_reset_handler = ipr_eh_dev_reset,
5911 .eh_host_reset_handler = ipr_eh_host_reset,
5912 .slave_alloc = ipr_slave_alloc,
5913 .slave_configure = ipr_slave_configure,
5914 .slave_destroy = ipr_slave_destroy,
Brian King35a39692006-09-25 12:39:20 -05005915 .target_alloc = ipr_target_alloc,
5916 .target_destroy = ipr_target_destroy,
Linus Torvalds1da177e2005-04-16 15:20:36 -07005917 .change_queue_depth = ipr_change_queue_depth,
5918 .change_queue_type = ipr_change_queue_type,
5919 .bios_param = ipr_biosparam,
5920 .can_queue = IPR_MAX_COMMANDS,
5921 .this_id = -1,
5922 .sg_tablesize = IPR_MAX_SGLIST,
5923 .max_sectors = IPR_IOA_MAX_SECTORS,
5924 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5925 .use_clustering = ENABLE_CLUSTERING,
5926 .shost_attrs = ipr_ioa_attrs,
5927 .sdev_attrs = ipr_dev_attrs,
5928 .proc_name = IPR_NAME
5929};
5930
Brian King35a39692006-09-25 12:39:20 -05005931/**
5932 * ipr_ata_phy_reset - libata phy_reset handler
5933 * @ap: ata port to reset
5934 *
5935 **/
5936static void ipr_ata_phy_reset(struct ata_port *ap)
5937{
5938 unsigned long flags;
5939 struct ipr_sata_port *sata_port = ap->private_data;
5940 struct ipr_resource_entry *res = sata_port->res;
5941 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5942 int rc;
5943
5944 ENTER;
5945 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5946 while(ioa_cfg->in_reset_reload) {
5947 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5948 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5949 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5950 }
5951
5952 if (!ioa_cfg->allow_cmds)
5953 goto out_unlock;
5954
5955 rc = ipr_device_reset(ioa_cfg, res);
5956
5957 if (rc) {
Tejun Heo3e4ec342010-05-10 21:41:30 +02005958 ap->link.device[0].class = ATA_DEV_NONE;
Brian King35a39692006-09-25 12:39:20 -05005959 goto out_unlock;
5960 }
5961
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08005962 ap->link.device[0].class = res->ata_class;
5963 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
Tejun Heo3e4ec342010-05-10 21:41:30 +02005964 ap->link.device[0].class = ATA_DEV_NONE;
Brian King35a39692006-09-25 12:39:20 -05005965
5966out_unlock:
5967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5968 LEAVE;
5969}
5970
5971/**
5972 * ipr_ata_post_internal - Cleanup after an internal command
5973 * @qc: ATA queued command
5974 *
5975 * Return value:
5976 * none
5977 **/
5978static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5979{
5980 struct ipr_sata_port *sata_port = qc->ap->private_data;
5981 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5982 struct ipr_cmnd *ipr_cmd;
5983 unsigned long flags;
5984
5985 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
Brian King73d98ff2006-11-21 10:27:58 -06005986 while(ioa_cfg->in_reset_reload) {
5987 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5988 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5989 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5990 }
5991
Brian King35a39692006-09-25 12:39:20 -05005992 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5993 if (ipr_cmd->qc == qc) {
5994 ipr_device_reset(ioa_cfg, sata_port->res);
5995 break;
5996 }
5997 }
5998 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5999}
6000
6001/**
Brian King35a39692006-09-25 12:39:20 -05006002 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6003 * @regs: destination
6004 * @tf: source ATA taskfile
6005 *
6006 * Return value:
6007 * none
6008 **/
6009static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6010 struct ata_taskfile *tf)
6011{
6012 regs->feature = tf->feature;
6013 regs->nsect = tf->nsect;
6014 regs->lbal = tf->lbal;
6015 regs->lbam = tf->lbam;
6016 regs->lbah = tf->lbah;
6017 regs->device = tf->device;
6018 regs->command = tf->command;
6019 regs->hob_feature = tf->hob_feature;
6020 regs->hob_nsect = tf->hob_nsect;
6021 regs->hob_lbal = tf->hob_lbal;
6022 regs->hob_lbam = tf->hob_lbam;
6023 regs->hob_lbah = tf->hob_lbah;
6024 regs->ctl = tf->ctl;
6025}
6026
6027/**
6028 * ipr_sata_done - done function for SATA commands
6029 * @ipr_cmd: ipr command struct
6030 *
6031 * This function is invoked by the interrupt handler for
6032 * ops generated by the SCSI mid-layer to SATA devices
6033 *
6034 * Return value:
6035 * none
6036 **/
6037static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6038{
6039 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6040 struct ata_queued_cmd *qc = ipr_cmd->qc;
6041 struct ipr_sata_port *sata_port = qc->ap->private_data;
6042 struct ipr_resource_entry *res = sata_port->res;
Wayne Boyer96d21f02010-05-10 09:13:27 -07006043 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Brian King35a39692006-09-25 12:39:20 -05006044
Wayne Boyer96d21f02010-05-10 09:13:27 -07006045 if (ipr_cmd->ioa_cfg->sis64)
6046 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6047 sizeof(struct ipr_ioasa_gata));
6048 else
6049 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6050 sizeof(struct ipr_ioasa_gata));
Brian King35a39692006-09-25 12:39:20 -05006051 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6052
Wayne Boyer96d21f02010-05-10 09:13:27 -07006053 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006054 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
Brian King35a39692006-09-25 12:39:20 -05006055
6056 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
Wayne Boyer96d21f02010-05-10 09:13:27 -07006057 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
Brian King35a39692006-09-25 12:39:20 -05006058 else
Wayne Boyer96d21f02010-05-10 09:13:27 -07006059 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
Brian King35a39692006-09-25 12:39:20 -05006060 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6061 ata_qc_complete(qc);
6062}
6063
6064/**
Wayne Boyera32c0552010-02-19 13:23:36 -08006065 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6066 * @ipr_cmd: ipr command struct
6067 * @qc: ATA queued command
6068 *
6069 **/
6070static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6071 struct ata_queued_cmd *qc)
6072{
6073 u32 ioadl_flags = 0;
6074 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6075 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6076 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6077 int len = qc->nbytes;
6078 struct scatterlist *sg;
6079 unsigned int si;
6080 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6081
6082 if (len == 0)
6083 return;
6084
6085 if (qc->dma_dir == DMA_TO_DEVICE) {
6086 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6087 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6088 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6089 ioadl_flags = IPR_IOADL_FLAGS_READ;
6090
6091 ioarcb->data_transfer_length = cpu_to_be32(len);
6092 ioarcb->ioadl_len =
6093 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6094 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6095 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6096
6097 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6098 ioadl64->flags = cpu_to_be32(ioadl_flags);
6099 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6100 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6101
6102 last_ioadl64 = ioadl64;
6103 ioadl64++;
6104 }
6105
6106 if (likely(last_ioadl64))
6107 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6108}
6109
6110/**
Brian King35a39692006-09-25 12:39:20 -05006111 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6112 * @ipr_cmd: ipr command struct
6113 * @qc: ATA queued command
6114 *
6115 **/
6116static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6117 struct ata_queued_cmd *qc)
6118{
6119 u32 ioadl_flags = 0;
6120 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Wayne Boyera32c0552010-02-19 13:23:36 -08006121 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
Jeff Garzik3be6cbd2007-10-18 16:21:18 -04006122 struct ipr_ioadl_desc *last_ioadl = NULL;
James Bottomleydde20202008-02-19 11:36:56 +01006123 int len = qc->nbytes;
Brian King35a39692006-09-25 12:39:20 -05006124 struct scatterlist *sg;
Tejun Heoff2aeb12007-12-05 16:43:11 +09006125 unsigned int si;
Brian King35a39692006-09-25 12:39:20 -05006126
6127 if (len == 0)
6128 return;
6129
6130 if (qc->dma_dir == DMA_TO_DEVICE) {
6131 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6132 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
Wayne Boyera32c0552010-02-19 13:23:36 -08006133 ioarcb->data_transfer_length = cpu_to_be32(len);
6134 ioarcb->ioadl_len =
Brian King35a39692006-09-25 12:39:20 -05006135 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6136 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6137 ioadl_flags = IPR_IOADL_FLAGS_READ;
6138 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6139 ioarcb->read_ioadl_len =
6140 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6141 }
6142
Tejun Heoff2aeb12007-12-05 16:43:11 +09006143 for_each_sg(qc->sg, sg, qc->n_elem, si) {
Brian King35a39692006-09-25 12:39:20 -05006144 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6145 ioadl->address = cpu_to_be32(sg_dma_address(sg));
Jeff Garzik3be6cbd2007-10-18 16:21:18 -04006146
6147 last_ioadl = ioadl;
6148 ioadl++;
Brian King35a39692006-09-25 12:39:20 -05006149 }
Jeff Garzik3be6cbd2007-10-18 16:21:18 -04006150
6151 if (likely(last_ioadl))
6152 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
Brian King35a39692006-09-25 12:39:20 -05006153}
6154
6155/**
6156 * ipr_qc_issue - Issue a SATA qc to a device
6157 * @qc: queued command
6158 *
6159 * Return value:
6160 * 0 if success
6161 **/
6162static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6163{
6164 struct ata_port *ap = qc->ap;
6165 struct ipr_sata_port *sata_port = ap->private_data;
6166 struct ipr_resource_entry *res = sata_port->res;
6167 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6168 struct ipr_cmnd *ipr_cmd;
6169 struct ipr_ioarcb *ioarcb;
6170 struct ipr_ioarcb_ata_regs *regs;
6171
6172 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
Brian King0feeed82007-03-29 12:43:43 -05006173 return AC_ERR_SYSTEM;
Brian King35a39692006-09-25 12:39:20 -05006174
6175 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6176 ioarcb = &ipr_cmd->ioarcb;
Brian King35a39692006-09-25 12:39:20 -05006177
Wayne Boyera32c0552010-02-19 13:23:36 -08006178 if (ioa_cfg->sis64) {
6179 regs = &ipr_cmd->i.ata_ioadl.regs;
6180 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6181 } else
6182 regs = &ioarcb->u.add_data.u.regs;
6183
6184 memset(regs, 0, sizeof(*regs));
6185 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
Brian King35a39692006-09-25 12:39:20 -05006186
6187 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6188 ipr_cmd->qc = qc;
6189 ipr_cmd->done = ipr_sata_done;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006190 ipr_cmd->ioarcb.res_handle = res->res_handle;
Brian King35a39692006-09-25 12:39:20 -05006191 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6192 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6193 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
James Bottomleydde20202008-02-19 11:36:56 +01006194 ipr_cmd->dma_use_sg = qc->n_elem;
Brian King35a39692006-09-25 12:39:20 -05006195
Wayne Boyera32c0552010-02-19 13:23:36 -08006196 if (ioa_cfg->sis64)
6197 ipr_build_ata_ioadl64(ipr_cmd, qc);
6198 else
6199 ipr_build_ata_ioadl(ipr_cmd, qc);
6200
Brian King35a39692006-09-25 12:39:20 -05006201 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6202 ipr_copy_sata_tf(regs, &qc->tf);
6203 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006204 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
Brian King35a39692006-09-25 12:39:20 -05006205
6206 switch (qc->tf.protocol) {
6207 case ATA_PROT_NODATA:
6208 case ATA_PROT_PIO:
6209 break;
6210
6211 case ATA_PROT_DMA:
6212 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6213 break;
6214
Tejun Heo0dc36882007-12-18 16:34:43 -05006215 case ATAPI_PROT_PIO:
6216 case ATAPI_PROT_NODATA:
Brian King35a39692006-09-25 12:39:20 -05006217 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6218 break;
6219
Tejun Heo0dc36882007-12-18 16:34:43 -05006220 case ATAPI_PROT_DMA:
Brian King35a39692006-09-25 12:39:20 -05006221 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6222 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6223 break;
6224
6225 default:
6226 WARN_ON(1);
Brian King0feeed82007-03-29 12:43:43 -05006227 return AC_ERR_INVALID;
Brian King35a39692006-09-25 12:39:20 -05006228 }
6229
6230 mb();
Wayne Boyera32c0552010-02-19 13:23:36 -08006231
6232 ipr_send_command(ipr_cmd);
6233
Brian King35a39692006-09-25 12:39:20 -05006234 return 0;
6235}
6236
6237/**
Tejun Heo4c9bf4e2008-04-07 22:47:20 +09006238 * ipr_qc_fill_rtf - Read result TF
6239 * @qc: ATA queued command
6240 *
6241 * Return value:
6242 * true
6243 **/
6244static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6245{
6246 struct ipr_sata_port *sata_port = qc->ap->private_data;
6247 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6248 struct ata_taskfile *tf = &qc->result_tf;
6249
6250 tf->feature = g->error;
6251 tf->nsect = g->nsect;
6252 tf->lbal = g->lbal;
6253 tf->lbam = g->lbam;
6254 tf->lbah = g->lbah;
6255 tf->device = g->device;
6256 tf->command = g->status;
6257 tf->hob_nsect = g->hob_nsect;
6258 tf->hob_lbal = g->hob_lbal;
6259 tf->hob_lbam = g->hob_lbam;
6260 tf->hob_lbah = g->hob_lbah;
6261 tf->ctl = g->alt_status;
6262
6263 return true;
6264}
6265
Brian King35a39692006-09-25 12:39:20 -05006266static struct ata_port_operations ipr_sata_ops = {
Brian King35a39692006-09-25 12:39:20 -05006267 .phy_reset = ipr_ata_phy_reset,
Tejun Heoa1efdab2008-03-25 12:22:50 +09006268 .hardreset = ipr_sata_reset,
Brian King35a39692006-09-25 12:39:20 -05006269 .post_internal_cmd = ipr_ata_post_internal,
Brian King35a39692006-09-25 12:39:20 -05006270 .qc_prep = ata_noop_qc_prep,
6271 .qc_issue = ipr_qc_issue,
Tejun Heo4c9bf4e2008-04-07 22:47:20 +09006272 .qc_fill_rtf = ipr_qc_fill_rtf,
Brian King35a39692006-09-25 12:39:20 -05006273 .port_start = ata_sas_port_start,
6274 .port_stop = ata_sas_port_stop
6275};
6276
6277static struct ata_port_info sata_port_info = {
Sergei Shtylyov9cbe0562011-02-04 22:05:48 +03006278 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
Sergei Shtylyov0f2e0332011-01-21 20:32:01 +03006279 .pio_mask = ATA_PIO4_ONLY,
6280 .mwdma_mask = ATA_MWDMA2,
6281 .udma_mask = ATA_UDMA6,
Brian King35a39692006-09-25 12:39:20 -05006282 .port_ops = &ipr_sata_ops
6283};
6284
Linus Torvalds1da177e2005-04-16 15:20:36 -07006285#ifdef CONFIG_PPC_PSERIES
6286static const u16 ipr_blocked_processors[] = {
6287 PV_NORTHSTAR,
6288 PV_PULSAR,
6289 PV_POWER4,
6290 PV_ICESTAR,
6291 PV_SSTAR,
6292 PV_POWER4p,
6293 PV_630,
6294 PV_630p
6295};
6296
6297/**
6298 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6299 * @ioa_cfg: ioa cfg struct
6300 *
6301 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6302 * certain pSeries hardware. This function determines if the given
6303 * adapter is in one of these confgurations or not.
6304 *
6305 * Return value:
6306 * 1 if adapter is not supported / 0 if adapter is supported
6307 **/
6308static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6309{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006310 int i;
6311
Auke Kok44c10132007-06-08 15:46:36 -07006312 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6313 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6314 if (__is_processor(ipr_blocked_processors[i]))
6315 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006316 }
6317 }
6318 return 0;
6319}
6320#else
6321#define ipr_invalid_adapter(ioa_cfg) 0
6322#endif
6323
6324/**
6325 * ipr_ioa_bringdown_done - IOA bring down completion.
6326 * @ipr_cmd: ipr command struct
6327 *
6328 * This function processes the completion of an adapter bring down.
6329 * It wakes any reset sleepers.
6330 *
6331 * Return value:
6332 * IPR_RC_JOB_RETURN
6333 **/
6334static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6335{
6336 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6337
6338 ENTER;
6339 ioa_cfg->in_reset_reload = 0;
6340 ioa_cfg->reset_retries = 0;
6341 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6342 wake_up_all(&ioa_cfg->reset_wait_q);
6343
6344 spin_unlock_irq(ioa_cfg->host->host_lock);
6345 scsi_unblock_requests(ioa_cfg->host);
6346 spin_lock_irq(ioa_cfg->host->host_lock);
6347 LEAVE;
6348
6349 return IPR_RC_JOB_RETURN;
6350}
6351
6352/**
6353 * ipr_ioa_reset_done - IOA reset completion.
6354 * @ipr_cmd: ipr command struct
6355 *
6356 * This function processes the completion of an adapter reset.
6357 * It schedules any necessary mid-layer add/removes and
6358 * wakes any reset sleepers.
6359 *
6360 * Return value:
6361 * IPR_RC_JOB_RETURN
6362 **/
6363static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6364{
6365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6366 struct ipr_resource_entry *res;
6367 struct ipr_hostrcb *hostrcb, *temp;
6368 int i = 0;
6369
6370 ENTER;
6371 ioa_cfg->in_reset_reload = 0;
6372 ioa_cfg->allow_cmds = 1;
6373 ioa_cfg->reset_cmd = NULL;
brking@us.ibm.com3d1d0da2005-11-01 17:01:54 -06006374 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006375
6376 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6377 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6378 ipr_trace;
6379 break;
6380 }
6381 }
6382 schedule_work(&ioa_cfg->work_q);
6383
6384 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6385 list_del(&hostrcb->queue);
6386 if (i++ < IPR_NUM_LOG_HCAMS)
6387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6388 else
6389 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6390 }
6391
Brian King6bb04172007-04-26 16:00:08 -05006392 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006393 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6394
6395 ioa_cfg->reset_retries = 0;
6396 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6397 wake_up_all(&ioa_cfg->reset_wait_q);
6398
Mark Nelson30237852008-12-10 12:23:20 +11006399 spin_unlock(ioa_cfg->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006400 scsi_unblock_requests(ioa_cfg->host);
Mark Nelson30237852008-12-10 12:23:20 +11006401 spin_lock(ioa_cfg->host->host_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006402
6403 if (!ioa_cfg->allow_cmds)
6404 scsi_block_requests(ioa_cfg->host);
6405
6406 LEAVE;
6407 return IPR_RC_JOB_RETURN;
6408}
6409
6410/**
6411 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6412 * @supported_dev: supported device struct
6413 * @vpids: vendor product id struct
6414 *
6415 * Return value:
6416 * none
6417 **/
6418static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6419 struct ipr_std_inq_vpids *vpids)
6420{
6421 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6422 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6423 supported_dev->num_records = 1;
6424 supported_dev->data_length =
6425 cpu_to_be16(sizeof(struct ipr_supported_device));
6426 supported_dev->reserved = 0;
6427}
6428
6429/**
6430 * ipr_set_supported_devs - Send Set Supported Devices for a device
6431 * @ipr_cmd: ipr command struct
6432 *
Wayne Boyera32c0552010-02-19 13:23:36 -08006433 * This function sends a Set Supported Devices to the adapter
Linus Torvalds1da177e2005-04-16 15:20:36 -07006434 *
6435 * Return value:
6436 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6437 **/
6438static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6439{
6440 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6441 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006442 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6443 struct ipr_resource_entry *res = ipr_cmd->u.res;
6444
6445 ipr_cmd->job_step = ipr_ioa_reset_done;
6446
6447 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
Brian Kinge4fbf442006-03-29 09:37:22 -06006448 if (!ipr_is_scsi_disk(res))
Linus Torvalds1da177e2005-04-16 15:20:36 -07006449 continue;
6450
6451 ipr_cmd->u.res = res;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006452 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006453
6454 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6455 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6456 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6457
6458 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006459 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006460 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6461 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6462
Wayne Boyera32c0552010-02-19 13:23:36 -08006463 ipr_init_ioadl(ipr_cmd,
6464 ioa_cfg->vpd_cbs_dma +
6465 offsetof(struct ipr_misc_cbs, supp_dev),
6466 sizeof(struct ipr_supported_device),
6467 IPR_IOADL_FLAGS_WRITE_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006468
6469 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6470 IPR_SET_SUP_DEVICE_TIMEOUT);
6471
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006472 if (!ioa_cfg->sis64)
6473 ipr_cmd->job_step = ipr_set_supported_devs;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006474 return IPR_RC_JOB_RETURN;
6475 }
6476
6477 return IPR_RC_JOB_CONTINUE;
6478}
6479
6480/**
6481 * ipr_get_mode_page - Locate specified mode page
6482 * @mode_pages: mode page buffer
6483 * @page_code: page code to find
6484 * @len: minimum required length for mode page
6485 *
6486 * Return value:
6487 * pointer to mode page / NULL on failure
6488 **/
6489static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6490 u32 page_code, u32 len)
6491{
6492 struct ipr_mode_page_hdr *mode_hdr;
6493 u32 page_length;
6494 u32 length;
6495
6496 if (!mode_pages || (mode_pages->hdr.length == 0))
6497 return NULL;
6498
6499 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6500 mode_hdr = (struct ipr_mode_page_hdr *)
6501 (mode_pages->data + mode_pages->hdr.block_desc_len);
6502
6503 while (length) {
6504 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6505 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6506 return mode_hdr;
6507 break;
6508 } else {
6509 page_length = (sizeof(struct ipr_mode_page_hdr) +
6510 mode_hdr->page_length);
6511 length -= page_length;
6512 mode_hdr = (struct ipr_mode_page_hdr *)
6513 ((unsigned long)mode_hdr + page_length);
6514 }
6515 }
6516 return NULL;
6517}
6518
6519/**
6520 * ipr_check_term_power - Check for term power errors
6521 * @ioa_cfg: ioa config struct
6522 * @mode_pages: IOAFP mode pages buffer
6523 *
6524 * Check the IOAFP's mode page 28 for term power errors
6525 *
6526 * Return value:
6527 * nothing
6528 **/
6529static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6530 struct ipr_mode_pages *mode_pages)
6531{
6532 int i;
6533 int entry_length;
6534 struct ipr_dev_bus_entry *bus;
6535 struct ipr_mode_page28 *mode_page;
6536
6537 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6538 sizeof(struct ipr_mode_page28));
6539
6540 entry_length = mode_page->entry_length;
6541
6542 bus = mode_page->bus;
6543
6544 for (i = 0; i < mode_page->num_entries; i++) {
6545 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6546 dev_err(&ioa_cfg->pdev->dev,
6547 "Term power is absent on scsi bus %d\n",
6548 bus->res_addr.bus);
6549 }
6550
6551 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6552 }
6553}
6554
6555/**
6556 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6557 * @ioa_cfg: ioa config struct
6558 *
6559 * Looks through the config table checking for SES devices. If
6560 * the SES device is in the SES table indicating a maximum SCSI
6561 * bus speed, the speed is limited for the bus.
6562 *
6563 * Return value:
6564 * none
6565 **/
6566static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6567{
6568 u32 max_xfer_rate;
6569 int i;
6570
6571 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6572 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6573 ioa_cfg->bus_attr[i].bus_width);
6574
6575 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6576 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6577 }
6578}
6579
6580/**
6581 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6582 * @ioa_cfg: ioa config struct
6583 * @mode_pages: mode page 28 buffer
6584 *
6585 * Updates mode page 28 based on driver configuration
6586 *
6587 * Return value:
6588 * none
6589 **/
6590static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6591 struct ipr_mode_pages *mode_pages)
6592{
6593 int i, entry_length;
6594 struct ipr_dev_bus_entry *bus;
6595 struct ipr_bus_attributes *bus_attr;
6596 struct ipr_mode_page28 *mode_page;
6597
6598 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6599 sizeof(struct ipr_mode_page28));
6600
6601 entry_length = mode_page->entry_length;
6602
6603 /* Loop for each device bus entry */
6604 for (i = 0, bus = mode_page->bus;
6605 i < mode_page->num_entries;
6606 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6607 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6608 dev_err(&ioa_cfg->pdev->dev,
6609 "Invalid resource address reported: 0x%08X\n",
6610 IPR_GET_PHYS_LOC(bus->res_addr));
6611 continue;
6612 }
6613
6614 bus_attr = &ioa_cfg->bus_attr[i];
6615 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6616 bus->bus_width = bus_attr->bus_width;
6617 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6618 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6619 if (bus_attr->qas_enabled)
6620 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6621 else
6622 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6623 }
6624}
6625
6626/**
6627 * ipr_build_mode_select - Build a mode select command
6628 * @ipr_cmd: ipr command struct
6629 * @res_handle: resource handle to send command to
6630 * @parm: Byte 2 of Mode Sense command
6631 * @dma_addr: DMA buffer address
6632 * @xfer_len: data transfer length
6633 *
6634 * Return value:
6635 * none
6636 **/
6637static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
Wayne Boyera32c0552010-02-19 13:23:36 -08006638 __be32 res_handle, u8 parm,
6639 dma_addr_t dma_addr, u8 xfer_len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006640{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006641 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6642
6643 ioarcb->res_handle = res_handle;
6644 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6645 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6646 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6647 ioarcb->cmd_pkt.cdb[1] = parm;
6648 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6649
Wayne Boyera32c0552010-02-19 13:23:36 -08006650 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006651}
6652
6653/**
6654 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6655 * @ipr_cmd: ipr command struct
6656 *
6657 * This function sets up the SCSI bus attributes and sends
6658 * a Mode Select for Page 28 to activate them.
6659 *
6660 * Return value:
6661 * IPR_RC_JOB_RETURN
6662 **/
6663static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6664{
6665 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6666 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6667 int length;
6668
6669 ENTER;
Brian King47338042006-02-08 20:57:42 -06006670 ipr_scsi_bus_speed_limit(ioa_cfg);
6671 ipr_check_term_power(ioa_cfg, mode_pages);
6672 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6673 length = mode_pages->hdr.length + 1;
6674 mode_pages->hdr.length = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006675
6676 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6677 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6678 length);
6679
Wayne Boyerf72919e2010-02-19 13:24:21 -08006680 ipr_cmd->job_step = ipr_set_supported_devs;
6681 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6682 struct ipr_resource_entry, queue);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006683 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6684
6685 LEAVE;
6686 return IPR_RC_JOB_RETURN;
6687}
6688
6689/**
6690 * ipr_build_mode_sense - Builds a mode sense command
6691 * @ipr_cmd: ipr command struct
6692 * @res: resource entry struct
6693 * @parm: Byte 2 of mode sense command
6694 * @dma_addr: DMA address of mode sense buffer
6695 * @xfer_len: Size of DMA buffer
6696 *
6697 * Return value:
6698 * none
6699 **/
6700static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6701 __be32 res_handle,
Wayne Boyera32c0552010-02-19 13:23:36 -08006702 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006703{
Linus Torvalds1da177e2005-04-16 15:20:36 -07006704 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6705
6706 ioarcb->res_handle = res_handle;
6707 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6708 ioarcb->cmd_pkt.cdb[2] = parm;
6709 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6710 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6711
Wayne Boyera32c0552010-02-19 13:23:36 -08006712 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006713}
6714
6715/**
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006716 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6717 * @ipr_cmd: ipr command struct
6718 *
6719 * This function handles the failure of an IOA bringup command.
6720 *
6721 * Return value:
6722 * IPR_RC_JOB_RETURN
6723 **/
6724static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6725{
6726 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyer96d21f02010-05-10 09:13:27 -07006727 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006728
6729 dev_err(&ioa_cfg->pdev->dev,
6730 "0x%02X failed with IOASC: 0x%08X\n",
6731 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6732
6733 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6734 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6735 return IPR_RC_JOB_RETURN;
6736}
6737
6738/**
6739 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6740 * @ipr_cmd: ipr command struct
6741 *
6742 * This function handles the failure of a Mode Sense to the IOAFP.
6743 * Some adapters do not handle all mode pages.
6744 *
6745 * Return value:
6746 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6747 **/
6748static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6749{
Wayne Boyerf72919e2010-02-19 13:24:21 -08006750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyer96d21f02010-05-10 09:13:27 -07006751 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006752
6753 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
Wayne Boyerf72919e2010-02-19 13:24:21 -08006754 ipr_cmd->job_step = ipr_set_supported_devs;
6755 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6756 struct ipr_resource_entry, queue);
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006757 return IPR_RC_JOB_CONTINUE;
6758 }
6759
6760 return ipr_reset_cmd_failed(ipr_cmd);
6761}
6762
6763/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006764 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6765 * @ipr_cmd: ipr command struct
6766 *
6767 * This function send a Page 28 mode sense to the IOA to
6768 * retrieve SCSI bus attributes.
6769 *
6770 * Return value:
6771 * IPR_RC_JOB_RETURN
6772 **/
6773static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6774{
6775 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6776
6777 ENTER;
6778 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6779 0x28, ioa_cfg->vpd_cbs_dma +
6780 offsetof(struct ipr_misc_cbs, mode_pages),
6781 sizeof(struct ipr_mode_pages));
6782
6783 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06006784 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006785
6786 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6787
6788 LEAVE;
6789 return IPR_RC_JOB_RETURN;
6790}
6791
6792/**
Brian Kingac09c342007-04-26 16:00:16 -05006793 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6794 * @ipr_cmd: ipr command struct
6795 *
6796 * This function enables dual IOA RAID support if possible.
6797 *
6798 * Return value:
6799 * IPR_RC_JOB_RETURN
6800 **/
6801static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6802{
6803 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6804 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6805 struct ipr_mode_page24 *mode_page;
6806 int length;
6807
6808 ENTER;
6809 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6810 sizeof(struct ipr_mode_page24));
6811
6812 if (mode_page)
6813 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6814
6815 length = mode_pages->hdr.length + 1;
6816 mode_pages->hdr.length = 0;
6817
6818 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6819 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6820 length);
6821
6822 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6823 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6824
6825 LEAVE;
6826 return IPR_RC_JOB_RETURN;
6827}
6828
6829/**
6830 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6831 * @ipr_cmd: ipr command struct
6832 *
6833 * This function handles the failure of a Mode Sense to the IOAFP.
6834 * Some adapters do not handle all mode pages.
6835 *
6836 * Return value:
6837 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6838 **/
6839static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6840{
Wayne Boyer96d21f02010-05-10 09:13:27 -07006841 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Brian Kingac09c342007-04-26 16:00:16 -05006842
6843 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6844 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6845 return IPR_RC_JOB_CONTINUE;
6846 }
6847
6848 return ipr_reset_cmd_failed(ipr_cmd);
6849}
6850
6851/**
6852 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6853 * @ipr_cmd: ipr command struct
6854 *
6855 * This function send a mode sense to the IOA to retrieve
6856 * the IOA Advanced Function Control mode page.
6857 *
6858 * Return value:
6859 * IPR_RC_JOB_RETURN
6860 **/
6861static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6862{
6863 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6864
6865 ENTER;
6866 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6867 0x24, ioa_cfg->vpd_cbs_dma +
6868 offsetof(struct ipr_misc_cbs, mode_pages),
6869 sizeof(struct ipr_mode_pages));
6870
6871 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6872 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6873
6874 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6875
6876 LEAVE;
6877 return IPR_RC_JOB_RETURN;
6878}
6879
6880/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07006881 * ipr_init_res_table - Initialize the resource table
6882 * @ipr_cmd: ipr command struct
6883 *
6884 * This function looks through the existing resource table, comparing
6885 * it with the config table. This function will take care of old/new
6886 * devices and schedule adding/removing them from the mid-layer
6887 * as appropriate.
6888 *
6889 * Return value:
6890 * IPR_RC_JOB_CONTINUE
6891 **/
6892static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6893{
6894 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6895 struct ipr_resource_entry *res, *temp;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006896 struct ipr_config_table_entry_wrapper cfgtew;
6897 int entries, found, flag, i;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006898 LIST_HEAD(old_res);
6899
6900 ENTER;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006901 if (ioa_cfg->sis64)
6902 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6903 else
6904 flag = ioa_cfg->u.cfg_table->hdr.flags;
6905
6906 if (flag & IPR_UCODE_DOWNLOAD_REQ)
Linus Torvalds1da177e2005-04-16 15:20:36 -07006907 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6908
6909 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6910 list_move_tail(&res->queue, &old_res);
6911
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006912 if (ioa_cfg->sis64)
Wayne Boyer438b0332010-05-10 09:13:00 -07006913 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006914 else
6915 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6916
6917 for (i = 0; i < entries; i++) {
6918 if (ioa_cfg->sis64)
6919 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6920 else
6921 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
Linus Torvalds1da177e2005-04-16 15:20:36 -07006922 found = 0;
6923
6924 list_for_each_entry_safe(res, temp, &old_res, queue) {
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006925 if (ipr_is_same_device(res, &cfgtew)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07006926 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6927 found = 1;
6928 break;
6929 }
6930 }
6931
6932 if (!found) {
6933 if (list_empty(&ioa_cfg->free_res_q)) {
6934 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6935 break;
6936 }
6937
6938 found = 1;
6939 res = list_entry(ioa_cfg->free_res_q.next,
6940 struct ipr_resource_entry, queue);
6941 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006942 ipr_init_res_entry(res, &cfgtew);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006943 res->add_to_ml = 1;
Wayne Boyer56115592010-06-10 14:46:34 -07006944 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6945 res->sdev->allow_restart = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006946
6947 if (found)
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006948 ipr_update_res_entry(res, &cfgtew);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006949 }
6950
6951 list_for_each_entry_safe(res, temp, &old_res, queue) {
6952 if (res->sdev) {
6953 res->del_from_ml = 1;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006954 res->res_handle = IPR_INVALID_RES_HANDLE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006955 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006956 }
6957 }
6958
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08006959 list_for_each_entry_safe(res, temp, &old_res, queue) {
6960 ipr_clear_res_target(res);
6961 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6962 }
6963
Brian Kingac09c342007-04-26 16:00:16 -05006964 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6965 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6966 else
6967 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006968
6969 LEAVE;
6970 return IPR_RC_JOB_CONTINUE;
6971}
6972
6973/**
6974 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6975 * @ipr_cmd: ipr command struct
6976 *
6977 * This function sends a Query IOA Configuration command
6978 * to the adapter to retrieve the IOA configuration table.
6979 *
6980 * Return value:
6981 * IPR_RC_JOB_RETURN
6982 **/
6983static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6984{
6985 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6986 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006987 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
Brian Kingac09c342007-04-26 16:00:16 -05006988 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006989
6990 ENTER;
Brian Kingac09c342007-04-26 16:00:16 -05006991 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6992 ioa_cfg->dual_raid = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07006993 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6994 ucode_vpd->major_release, ucode_vpd->card_type,
6995 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6996 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6997 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6998
6999 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
Wayne Boyer438b0332010-05-10 09:13:00 -07007000 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08007001 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7002 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007003
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08007004 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
Wayne Boyera32c0552010-02-19 13:23:36 -08007005 IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007006
7007 ipr_cmd->job_step = ipr_init_res_table;
7008
7009 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7010
7011 LEAVE;
7012 return IPR_RC_JOB_RETURN;
7013}
7014
7015/**
7016 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7017 * @ipr_cmd: ipr command struct
7018 *
7019 * This utility function sends an inquiry to the adapter.
7020 *
7021 * Return value:
7022 * none
7023 **/
7024static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
Wayne Boyera32c0552010-02-19 13:23:36 -08007025 dma_addr_t dma_addr, u8 xfer_len)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007026{
7027 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007028
7029 ENTER;
7030 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7031 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7032
7033 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7034 ioarcb->cmd_pkt.cdb[1] = flags;
7035 ioarcb->cmd_pkt.cdb[2] = page;
7036 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7037
Wayne Boyera32c0552010-02-19 13:23:36 -08007038 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007039
7040 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7041 LEAVE;
7042}
7043
7044/**
brking@us.ibm.com62275042005-11-01 17:01:14 -06007045 * ipr_inquiry_page_supported - Is the given inquiry page supported
7046 * @page0: inquiry page 0 buffer
7047 * @page: page code.
7048 *
7049 * This function determines if the specified inquiry page is supported.
7050 *
7051 * Return value:
7052 * 1 if page is supported / 0 if not
7053 **/
7054static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7055{
7056 int i;
7057
7058 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7059 if (page0->page[i] == page)
7060 return 1;
7061
7062 return 0;
7063}
7064
7065/**
Brian Kingac09c342007-04-26 16:00:16 -05007066 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7067 * @ipr_cmd: ipr command struct
7068 *
7069 * This function sends a Page 0xD0 inquiry to the adapter
7070 * to retrieve adapter capabilities.
7071 *
7072 * Return value:
7073 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7074 **/
7075static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7076{
7077 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7078 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7079 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7080
7081 ENTER;
7082 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7083 memset(cap, 0, sizeof(*cap));
7084
7085 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7086 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7087 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7088 sizeof(struct ipr_inquiry_cap));
7089 return IPR_RC_JOB_RETURN;
7090 }
7091
7092 LEAVE;
7093 return IPR_RC_JOB_CONTINUE;
7094}
7095
7096/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007097 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7098 * @ipr_cmd: ipr command struct
7099 *
7100 * This function sends a Page 3 inquiry to the adapter
7101 * to retrieve software VPD information.
7102 *
7103 * Return value:
7104 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7105 **/
7106static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7107{
7108 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
brking@us.ibm.com62275042005-11-01 17:01:14 -06007109
7110 ENTER;
7111
Brian Kingac09c342007-04-26 16:00:16 -05007112 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
brking@us.ibm.com62275042005-11-01 17:01:14 -06007113
7114 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7115 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7116 sizeof(struct ipr_inquiry_page3));
7117
7118 LEAVE;
7119 return IPR_RC_JOB_RETURN;
7120}
7121
7122/**
7123 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7124 * @ipr_cmd: ipr command struct
7125 *
7126 * This function sends a Page 0 inquiry to the adapter
7127 * to retrieve supported inquiry pages.
7128 *
7129 * Return value:
7130 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7131 **/
7132static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7133{
7134 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007135 char type[5];
7136
7137 ENTER;
7138
7139 /* Grab the type out of the VPD and store it away */
7140 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7141 type[4] = '\0';
7142 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7143
brking@us.ibm.com62275042005-11-01 17:01:14 -06007144 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007145
brking@us.ibm.com62275042005-11-01 17:01:14 -06007146 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7147 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7148 sizeof(struct ipr_inquiry_page0));
Linus Torvalds1da177e2005-04-16 15:20:36 -07007149
7150 LEAVE;
7151 return IPR_RC_JOB_RETURN;
7152}
7153
7154/**
7155 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7156 * @ipr_cmd: ipr command struct
7157 *
7158 * This function sends a standard inquiry to the adapter.
7159 *
7160 * Return value:
7161 * IPR_RC_JOB_RETURN
7162 **/
7163static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7164{
7165 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7166
7167 ENTER;
brking@us.ibm.com62275042005-11-01 17:01:14 -06007168 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007169
7170 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7171 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7172 sizeof(struct ipr_ioa_vpd));
7173
7174 LEAVE;
7175 return IPR_RC_JOB_RETURN;
7176}
7177
7178/**
Wayne Boyer214777b2010-02-19 13:24:26 -08007179 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007180 * @ipr_cmd: ipr command struct
7181 *
7182 * This function send an Identify Host Request Response Queue
7183 * command to establish the HRRQ with the adapter.
7184 *
7185 * Return value:
7186 * IPR_RC_JOB_RETURN
7187 **/
Wayne Boyer214777b2010-02-19 13:24:26 -08007188static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007189{
7190 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7191 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7192
7193 ENTER;
7194 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7195
7196 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7197 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7198
7199 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
Wayne Boyer214777b2010-02-19 13:24:26 -08007200 if (ioa_cfg->sis64)
7201 ioarcb->cmd_pkt.cdb[1] = 0x1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007202 ioarcb->cmd_pkt.cdb[2] =
Wayne Boyer214777b2010-02-19 13:24:26 -08007203 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007204 ioarcb->cmd_pkt.cdb[3] =
Wayne Boyer214777b2010-02-19 13:24:26 -08007205 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007206 ioarcb->cmd_pkt.cdb[4] =
Wayne Boyer214777b2010-02-19 13:24:26 -08007207 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007208 ioarcb->cmd_pkt.cdb[5] =
Wayne Boyer214777b2010-02-19 13:24:26 -08007209 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007210 ioarcb->cmd_pkt.cdb[7] =
7211 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7212 ioarcb->cmd_pkt.cdb[8] =
7213 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7214
Wayne Boyer214777b2010-02-19 13:24:26 -08007215 if (ioa_cfg->sis64) {
7216 ioarcb->cmd_pkt.cdb[10] =
7217 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7218 ioarcb->cmd_pkt.cdb[11] =
7219 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7220 ioarcb->cmd_pkt.cdb[12] =
7221 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7222 ioarcb->cmd_pkt.cdb[13] =
7223 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7224 }
7225
Linus Torvalds1da177e2005-04-16 15:20:36 -07007226 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7227
7228 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7229
7230 LEAVE;
7231 return IPR_RC_JOB_RETURN;
7232}
7233
7234/**
7235 * ipr_reset_timer_done - Adapter reset timer function
7236 * @ipr_cmd: ipr command struct
7237 *
7238 * Description: This function is used in adapter reset processing
7239 * for timing events. If the reset_cmd pointer in the IOA
7240 * config struct is not this adapter's we are doing nested
7241 * resets and fail_all_ops will take care of freeing the
7242 * command block.
7243 *
7244 * Return value:
7245 * none
7246 **/
7247static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7248{
7249 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7250 unsigned long lock_flags = 0;
7251
7252 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7253
7254 if (ioa_cfg->reset_cmd == ipr_cmd) {
7255 list_del(&ipr_cmd->queue);
7256 ipr_cmd->done(ipr_cmd);
7257 }
7258
7259 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7260}
7261
7262/**
7263 * ipr_reset_start_timer - Start a timer for adapter reset job
7264 * @ipr_cmd: ipr command struct
7265 * @timeout: timeout value
7266 *
7267 * Description: This function is used in adapter reset processing
7268 * for timing events. If the reset_cmd pointer in the IOA
7269 * config struct is not this adapter's we are doing nested
7270 * resets and fail_all_ops will take care of freeing the
7271 * command block.
7272 *
7273 * Return value:
7274 * none
7275 **/
7276static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7277 unsigned long timeout)
7278{
7279 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7280 ipr_cmd->done = ipr_reset_ioa_job;
7281
7282 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7283 ipr_cmd->timer.expires = jiffies + timeout;
7284 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7285 add_timer(&ipr_cmd->timer);
7286}
7287
7288/**
7289 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7290 * @ioa_cfg: ioa cfg struct
7291 *
7292 * Return value:
7293 * nothing
7294 **/
7295static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7296{
7297 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7298
7299 /* Initialize Host RRQ pointers */
7300 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7301 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7302 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7303 ioa_cfg->toggle_bit = 1;
7304
7305 /* Zero out config table */
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08007306 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007307}
7308
7309/**
Wayne Boyer214777b2010-02-19 13:24:26 -08007310 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7311 * @ipr_cmd: ipr command struct
7312 *
7313 * Return value:
7314 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7315 **/
7316static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7317{
7318 unsigned long stage, stage_time;
7319 u32 feedback;
7320 volatile u32 int_reg;
7321 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7322 u64 maskval = 0;
7323
7324 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7325 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7326 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7327
7328 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7329
7330 /* sanity check the stage_time value */
Wayne Boyer438b0332010-05-10 09:13:00 -07007331 if (stage_time == 0)
7332 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7333 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
Wayne Boyer214777b2010-02-19 13:24:26 -08007334 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7335 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7336 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7337
7338 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7339 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7340 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7341 stage_time = ioa_cfg->transop_timeout;
7342 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7343 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
Wayne Boyer1df79ca2010-07-14 10:49:43 -07007344 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7345 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7346 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7347 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7348 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7349 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7350 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7351 return IPR_RC_JOB_CONTINUE;
7352 }
Wayne Boyer214777b2010-02-19 13:24:26 -08007353 }
7354
7355 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7356 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7357 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7358 ipr_cmd->done = ipr_reset_ioa_job;
7359 add_timer(&ipr_cmd->timer);
7360 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7361
7362 return IPR_RC_JOB_RETURN;
7363}
7364
7365/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007366 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7367 * @ipr_cmd: ipr command struct
7368 *
7369 * This function reinitializes some control blocks and
7370 * enables destructive diagnostics on the adapter.
7371 *
7372 * Return value:
7373 * IPR_RC_JOB_RETURN
7374 **/
7375static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7376{
7377 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7378 volatile u32 int_reg;
Wayne Boyer7be96902010-05-10 09:14:07 -07007379 volatile u64 maskval;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007380
7381 ENTER;
Wayne Boyer214777b2010-02-19 13:24:26 -08007382 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007383 ipr_init_ioa_mem(ioa_cfg);
7384
7385 ioa_cfg->allow_interrupts = 1;
Wayne Boyer8701f182010-06-04 10:26:50 -07007386 if (ioa_cfg->sis64) {
7387 /* Set the adapter to the correct endian mode. */
7388 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7389 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7390 }
7391
Wayne Boyer7be96902010-05-10 09:14:07 -07007392 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007393
7394 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7395 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
Wayne Boyer214777b2010-02-19 13:24:26 -08007396 ioa_cfg->regs.clr_interrupt_mask_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007397 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7398 return IPR_RC_JOB_CONTINUE;
7399 }
7400
7401 /* Enable destructive diagnostics on IOA */
Wayne Boyer214777b2010-02-19 13:24:26 -08007402 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007403
Wayne Boyer7be96902010-05-10 09:14:07 -07007404 if (ioa_cfg->sis64) {
7405 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7406 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7407 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7408 } else
7409 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
Wayne Boyer214777b2010-02-19 13:24:26 -08007410
Linus Torvalds1da177e2005-04-16 15:20:36 -07007411 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7412
7413 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7414
Wayne Boyer214777b2010-02-19 13:24:26 -08007415 if (ioa_cfg->sis64) {
7416 ipr_cmd->job_step = ipr_reset_next_stage;
7417 return IPR_RC_JOB_CONTINUE;
7418 }
7419
Linus Torvalds1da177e2005-04-16 15:20:36 -07007420 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
Brian King5469cb52007-03-29 12:42:40 -05007421 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007422 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7423 ipr_cmd->done = ipr_reset_ioa_job;
7424 add_timer(&ipr_cmd->timer);
7425 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7426
7427 LEAVE;
7428 return IPR_RC_JOB_RETURN;
7429}
7430
7431/**
7432 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7433 * @ipr_cmd: ipr command struct
7434 *
7435 * This function is invoked when an adapter dump has run out
7436 * of processing time.
7437 *
7438 * Return value:
7439 * IPR_RC_JOB_CONTINUE
7440 **/
7441static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7442{
7443 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7444
7445 if (ioa_cfg->sdt_state == GET_DUMP)
Brian King41e9a692011-09-21 08:51:11 -05007446 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7447 else if (ioa_cfg->sdt_state == READ_DUMP)
Linus Torvalds1da177e2005-04-16 15:20:36 -07007448 ioa_cfg->sdt_state = ABORT_DUMP;
7449
Brian King4c647e92011-10-15 09:08:56 -05007450 ioa_cfg->dump_timeout = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007451 ipr_cmd->job_step = ipr_reset_alert;
7452
7453 return IPR_RC_JOB_CONTINUE;
7454}
7455
7456/**
7457 * ipr_unit_check_no_data - Log a unit check/no data error log
7458 * @ioa_cfg: ioa config struct
7459 *
7460 * Logs an error indicating the adapter unit checked, but for some
7461 * reason, we were unable to fetch the unit check buffer.
7462 *
7463 * Return value:
7464 * nothing
7465 **/
7466static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7467{
7468 ioa_cfg->errors_logged++;
7469 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7470}
7471
7472/**
7473 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7474 * @ioa_cfg: ioa config struct
7475 *
7476 * Fetches the unit check buffer from the adapter by clocking the data
7477 * through the mailbox register.
7478 *
7479 * Return value:
7480 * nothing
7481 **/
7482static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7483{
7484 unsigned long mailbox;
7485 struct ipr_hostrcb *hostrcb;
7486 struct ipr_uc_sdt sdt;
7487 int rc, length;
Brian King65f56472007-04-26 16:00:12 -05007488 u32 ioasc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007489
7490 mailbox = readl(ioa_cfg->ioa_mailbox);
7491
Wayne Boyerdcbad002010-02-19 13:24:14 -08007492 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007493 ipr_unit_check_no_data(ioa_cfg);
7494 return;
7495 }
7496
7497 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7498 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7499 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7500
Wayne Boyerdcbad002010-02-19 13:24:14 -08007501 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7502 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7503 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007504 ipr_unit_check_no_data(ioa_cfg);
7505 return;
7506 }
7507
7508 /* Find length of the first sdt entry (UC buffer) */
Wayne Boyerdcbad002010-02-19 13:24:14 -08007509 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7510 length = be32_to_cpu(sdt.entry[0].end_token);
7511 else
7512 length = (be32_to_cpu(sdt.entry[0].end_token) -
7513 be32_to_cpu(sdt.entry[0].start_token)) &
7514 IPR_FMT2_MBX_ADDR_MASK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007515
7516 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7517 struct ipr_hostrcb, queue);
7518 list_del(&hostrcb->queue);
7519 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7520
7521 rc = ipr_get_ldump_data_section(ioa_cfg,
Wayne Boyerdcbad002010-02-19 13:24:14 -08007522 be32_to_cpu(sdt.entry[0].start_token),
Linus Torvalds1da177e2005-04-16 15:20:36 -07007523 (__be32 *)&hostrcb->hcam,
7524 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7525
Brian King65f56472007-04-26 16:00:12 -05007526 if (!rc) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07007527 ipr_handle_log_data(ioa_cfg, hostrcb);
Wayne Boyer4565e372010-02-19 13:24:07 -08007528 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
Brian King65f56472007-04-26 16:00:12 -05007529 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7530 ioa_cfg->sdt_state == GET_DUMP)
7531 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7532 } else
Linus Torvalds1da177e2005-04-16 15:20:36 -07007533 ipr_unit_check_no_data(ioa_cfg);
7534
7535 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7536}
7537
7538/**
Wayne Boyer110def82010-11-04 09:36:16 -07007539 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7540 * @ipr_cmd: ipr command struct
7541 *
7542 * Description: This function will call to get the unit check buffer.
7543 *
7544 * Return value:
7545 * IPR_RC_JOB_RETURN
7546 **/
7547static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7548{
7549 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7550
7551 ENTER;
7552 ioa_cfg->ioa_unit_checked = 0;
7553 ipr_get_unit_check_buffer(ioa_cfg);
7554 ipr_cmd->job_step = ipr_reset_alert;
7555 ipr_reset_start_timer(ipr_cmd, 0);
7556
7557 LEAVE;
7558 return IPR_RC_JOB_RETURN;
7559}
7560
7561/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007562 * ipr_reset_restore_cfg_space - Restore PCI config space.
7563 * @ipr_cmd: ipr command struct
7564 *
7565 * Description: This function restores the saved PCI config space of
7566 * the adapter, fails all outstanding ops back to the callers, and
7567 * fetches the dump/unit check if applicable to this reset.
7568 *
7569 * Return value:
7570 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7571 **/
7572static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7573{
7574 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyer630ad832011-04-07 12:12:30 -07007575 u32 int_reg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007576
7577 ENTER;
Kleber Sacilotto de Souza99c965d2009-11-25 20:13:43 -02007578 ioa_cfg->pdev->state_saved = true;
Jon Mason1d3c16a2010-11-30 17:43:26 -06007579 pci_restore_state(ioa_cfg->pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007580
7581 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
Wayne Boyer96d21f02010-05-10 09:13:27 -07007582 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007583 return IPR_RC_JOB_CONTINUE;
7584 }
7585
7586 ipr_fail_all_ops(ioa_cfg);
7587
Wayne Boyer8701f182010-06-04 10:26:50 -07007588 if (ioa_cfg->sis64) {
7589 /* Set the adapter to the correct endian mode. */
7590 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7591 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7592 }
7593
Linus Torvalds1da177e2005-04-16 15:20:36 -07007594 if (ioa_cfg->ioa_unit_checked) {
Wayne Boyer110def82010-11-04 09:36:16 -07007595 if (ioa_cfg->sis64) {
7596 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7597 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7598 return IPR_RC_JOB_RETURN;
7599 } else {
7600 ioa_cfg->ioa_unit_checked = 0;
7601 ipr_get_unit_check_buffer(ioa_cfg);
7602 ipr_cmd->job_step = ipr_reset_alert;
7603 ipr_reset_start_timer(ipr_cmd, 0);
7604 return IPR_RC_JOB_RETURN;
7605 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07007606 }
7607
7608 if (ioa_cfg->in_ioa_bringdown) {
7609 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7610 } else {
7611 ipr_cmd->job_step = ipr_reset_enable_ioa;
7612
7613 if (GET_DUMP == ioa_cfg->sdt_state) {
Brian King41e9a692011-09-21 08:51:11 -05007614 ioa_cfg->sdt_state = READ_DUMP;
Brian King4c647e92011-10-15 09:08:56 -05007615 ioa_cfg->dump_timeout = 0;
Kleber Sacilotto de Souza4d4dd702011-04-26 19:23:29 -03007616 if (ioa_cfg->sis64)
7617 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
7618 else
7619 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007620 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7621 schedule_work(&ioa_cfg->work_q);
7622 return IPR_RC_JOB_RETURN;
7623 }
7624 }
7625
Wayne Boyer438b0332010-05-10 09:13:00 -07007626 LEAVE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007627 return IPR_RC_JOB_CONTINUE;
7628}
7629
7630/**
Brian Kinge619e1a2007-01-23 11:25:37 -06007631 * ipr_reset_bist_done - BIST has completed on the adapter.
7632 * @ipr_cmd: ipr command struct
7633 *
7634 * Description: Unblock config space and resume the reset process.
7635 *
7636 * Return value:
7637 * IPR_RC_JOB_CONTINUE
7638 **/
7639static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7640{
Jan Kiszkafb51ccb2011-11-04 09:45:59 +01007641 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7642
Brian Kinge619e1a2007-01-23 11:25:37 -06007643 ENTER;
Jan Kiszkafb51ccb2011-11-04 09:45:59 +01007644 if (ioa_cfg->cfg_locked)
7645 pci_cfg_access_unlock(ioa_cfg->pdev);
7646 ioa_cfg->cfg_locked = 0;
Brian Kinge619e1a2007-01-23 11:25:37 -06007647 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7648 LEAVE;
7649 return IPR_RC_JOB_CONTINUE;
7650}
7651
7652/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007653 * ipr_reset_start_bist - Run BIST on the adapter.
7654 * @ipr_cmd: ipr command struct
7655 *
7656 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7657 *
7658 * Return value:
7659 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7660 **/
7661static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7662{
7663 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
Wayne Boyercb237ef2010-06-17 11:51:40 -07007664 int rc = PCIBIOS_SUCCESSFUL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007665
7666 ENTER;
Wayne Boyercb237ef2010-06-17 11:51:40 -07007667 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7668 writel(IPR_UPROCI_SIS64_START_BIST,
7669 ioa_cfg->regs.set_uproc_interrupt_reg32);
7670 else
7671 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7672
7673 if (rc == PCIBIOS_SUCCESSFUL) {
Brian Kinge619e1a2007-01-23 11:25:37 -06007674 ipr_cmd->job_step = ipr_reset_bist_done;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007675 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7676 rc = IPR_RC_JOB_RETURN;
Wayne Boyercb237ef2010-06-17 11:51:40 -07007677 } else {
Jan Kiszkafb51ccb2011-11-04 09:45:59 +01007678 if (ioa_cfg->cfg_locked)
7679 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
7680 ioa_cfg->cfg_locked = 0;
Wayne Boyercb237ef2010-06-17 11:51:40 -07007681 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7682 rc = IPR_RC_JOB_CONTINUE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007683 }
7684
7685 LEAVE;
7686 return rc;
7687}
7688
7689/**
Brian King463fc692007-05-07 17:09:05 -05007690 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7691 * @ipr_cmd: ipr command struct
7692 *
7693 * Description: This clears PCI reset to the adapter and delays two seconds.
7694 *
7695 * Return value:
7696 * IPR_RC_JOB_RETURN
7697 **/
7698static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7699{
7700 ENTER;
7701 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7702 ipr_cmd->job_step = ipr_reset_bist_done;
7703 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7704 LEAVE;
7705 return IPR_RC_JOB_RETURN;
7706}
7707
7708/**
7709 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7710 * @ipr_cmd: ipr command struct
7711 *
7712 * Description: This asserts PCI reset to the adapter.
7713 *
7714 * Return value:
7715 * IPR_RC_JOB_RETURN
7716 **/
7717static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7718{
7719 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7720 struct pci_dev *pdev = ioa_cfg->pdev;
7721
7722 ENTER;
Brian King463fc692007-05-07 17:09:05 -05007723 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7724 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7725 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7726 LEAVE;
7727 return IPR_RC_JOB_RETURN;
7728}
7729
7730/**
Jan Kiszkafb51ccb2011-11-04 09:45:59 +01007731 * ipr_reset_block_config_access_wait - Wait for permission to block config access
7732 * @ipr_cmd: ipr command struct
7733 *
7734 * Description: This attempts to block config access to the IOA.
7735 *
7736 * Return value:
7737 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7738 **/
7739static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
7740{
7741 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7742 int rc = IPR_RC_JOB_CONTINUE;
7743
7744 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
7745 ioa_cfg->cfg_locked = 1;
7746 ipr_cmd->job_step = ioa_cfg->reset;
7747 } else {
7748 if (ipr_cmd->u.time_left) {
7749 rc = IPR_RC_JOB_RETURN;
7750 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7751 ipr_reset_start_timer(ipr_cmd,
7752 IPR_CHECK_FOR_RESET_TIMEOUT);
7753 } else {
7754 ipr_cmd->job_step = ioa_cfg->reset;
7755 dev_err(&ioa_cfg->pdev->dev,
7756 "Timed out waiting to lock config access. Resetting anyway.\n");
7757 }
7758 }
7759
7760 return rc;
7761}
7762
7763/**
7764 * ipr_reset_block_config_access - Block config access to the IOA
7765 * @ipr_cmd: ipr command struct
7766 *
7767 * Description: This attempts to block config access to the IOA
7768 *
7769 * Return value:
7770 * IPR_RC_JOB_CONTINUE
7771 **/
7772static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
7773{
7774 ipr_cmd->ioa_cfg->cfg_locked = 0;
7775 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
7776 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7777 return IPR_RC_JOB_CONTINUE;
7778}
7779
7780/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07007781 * ipr_reset_allowed - Query whether or not IOA can be reset
7782 * @ioa_cfg: ioa config struct
7783 *
7784 * Return value:
7785 * 0 if reset not allowed / non-zero if reset is allowed
7786 **/
7787static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7788{
7789 volatile u32 temp_reg;
7790
7791 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7792 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7793}
7794
7795/**
7796 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7797 * @ipr_cmd: ipr command struct
7798 *
7799 * Description: This function waits for adapter permission to run BIST,
7800 * then runs BIST. If the adapter does not give permission after a
7801 * reasonable time, we will reset the adapter anyway. The impact of
7802 * resetting the adapter without warning the adapter is the risk of
7803 * losing the persistent error log on the adapter. If the adapter is
7804 * reset while it is writing to the flash on the adapter, the flash
7805 * segment will have bad ECC and be zeroed.
7806 *
7807 * Return value:
7808 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7809 **/
7810static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7811{
7812 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7813 int rc = IPR_RC_JOB_RETURN;
7814
7815 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7816 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7817 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7818 } else {
Jan Kiszkafb51ccb2011-11-04 09:45:59 +01007819 ipr_cmd->job_step = ipr_reset_block_config_access;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007820 rc = IPR_RC_JOB_CONTINUE;
7821 }
7822
7823 return rc;
7824}
7825
7826/**
Wayne Boyer8701f182010-06-04 10:26:50 -07007827 * ipr_reset_alert - Alert the adapter of a pending reset
Linus Torvalds1da177e2005-04-16 15:20:36 -07007828 * @ipr_cmd: ipr command struct
7829 *
7830 * Description: This function alerts the adapter that it will be reset.
7831 * If memory space is not currently enabled, proceed directly
7832 * to running BIST on the adapter. The timer must always be started
7833 * so we guarantee we do not run BIST from ipr_isr.
7834 *
7835 * Return value:
7836 * IPR_RC_JOB_RETURN
7837 **/
7838static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7839{
7840 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7841 u16 cmd_reg;
7842 int rc;
7843
7844 ENTER;
7845 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7846
7847 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7848 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
Wayne Boyer214777b2010-02-19 13:24:26 -08007849 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007850 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7851 } else {
Jan Kiszkafb51ccb2011-11-04 09:45:59 +01007852 ipr_cmd->job_step = ipr_reset_block_config_access;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007853 }
7854
7855 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7856 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7857
7858 LEAVE;
7859 return IPR_RC_JOB_RETURN;
7860}
7861
7862/**
7863 * ipr_reset_ucode_download_done - Microcode download completion
7864 * @ipr_cmd: ipr command struct
7865 *
7866 * Description: This function unmaps the microcode download buffer.
7867 *
7868 * Return value:
7869 * IPR_RC_JOB_CONTINUE
7870 **/
7871static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7872{
7873 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7874 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7875
7876 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7877 sglist->num_sg, DMA_TO_DEVICE);
7878
7879 ipr_cmd->job_step = ipr_reset_alert;
7880 return IPR_RC_JOB_CONTINUE;
7881}
7882
7883/**
7884 * ipr_reset_ucode_download - Download microcode to the adapter
7885 * @ipr_cmd: ipr command struct
7886 *
7887 * Description: This function checks to see if it there is microcode
7888 * to download to the adapter. If there is, a download is performed.
7889 *
7890 * Return value:
7891 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7892 **/
7893static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7894{
7895 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7896 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7897
7898 ENTER;
7899 ipr_cmd->job_step = ipr_reset_alert;
7900
7901 if (!sglist)
7902 return IPR_RC_JOB_CONTINUE;
7903
7904 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7905 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7906 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7907 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7908 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7909 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7910 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7911
Wayne Boyera32c0552010-02-19 13:23:36 -08007912 if (ioa_cfg->sis64)
7913 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7914 else
7915 ipr_build_ucode_ioadl(ipr_cmd, sglist);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007916 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7917
7918 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7919 IPR_WRITE_BUFFER_TIMEOUT);
7920
7921 LEAVE;
7922 return IPR_RC_JOB_RETURN;
7923}
7924
7925/**
7926 * ipr_reset_shutdown_ioa - Shutdown the adapter
7927 * @ipr_cmd: ipr command struct
7928 *
7929 * Description: This function issues an adapter shutdown of the
7930 * specified type to the specified adapter as part of the
7931 * adapter reset job.
7932 *
7933 * Return value:
7934 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7935 **/
7936static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7937{
7938 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7939 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7940 unsigned long timeout;
7941 int rc = IPR_RC_JOB_CONTINUE;
7942
7943 ENTER;
7944 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7945 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7946 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7947 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7948 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7949
Brian Kingac09c342007-04-26 16:00:16 -05007950 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7951 timeout = IPR_SHUTDOWN_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007952 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7953 timeout = IPR_INTERNAL_TIMEOUT;
Brian Kingac09c342007-04-26 16:00:16 -05007954 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7955 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007956 else
Brian Kingac09c342007-04-26 16:00:16 -05007957 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007958
7959 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7960
7961 rc = IPR_RC_JOB_RETURN;
7962 ipr_cmd->job_step = ipr_reset_ucode_download;
7963 } else
7964 ipr_cmd->job_step = ipr_reset_alert;
7965
7966 LEAVE;
7967 return rc;
7968}
7969
7970/**
7971 * ipr_reset_ioa_job - Adapter reset job
7972 * @ipr_cmd: ipr command struct
7973 *
7974 * Description: This function is the job router for the adapter reset job.
7975 *
7976 * Return value:
7977 * none
7978 **/
7979static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7980{
7981 u32 rc, ioasc;
Linus Torvalds1da177e2005-04-16 15:20:36 -07007982 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7983
7984 do {
Wayne Boyer96d21f02010-05-10 09:13:27 -07007985 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
Linus Torvalds1da177e2005-04-16 15:20:36 -07007986
7987 if (ioa_cfg->reset_cmd != ipr_cmd) {
7988 /*
7989 * We are doing nested adapter resets and this is
7990 * not the current reset job.
7991 */
7992 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7993 return;
7994 }
7995
7996 if (IPR_IOASC_SENSE_KEY(ioasc)) {
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06007997 rc = ipr_cmd->job_step_failed(ipr_cmd);
7998 if (rc == IPR_RC_JOB_RETURN)
7999 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008000 }
8001
8002 ipr_reinit_ipr_cmnd(ipr_cmd);
brking@us.ibm.comdfed8232005-11-01 17:02:55 -06008003 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008004 rc = ipr_cmd->job_step(ipr_cmd);
8005 } while(rc == IPR_RC_JOB_CONTINUE);
8006}
8007
8008/**
8009 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8010 * @ioa_cfg: ioa config struct
8011 * @job_step: first job step of reset job
8012 * @shutdown_type: shutdown type
8013 *
8014 * Description: This function will initiate the reset of the given adapter
8015 * starting at the selected job step.
8016 * If the caller needs to wait on the completion of the reset,
8017 * the caller must sleep on the reset_wait_q.
8018 *
8019 * Return value:
8020 * none
8021 **/
8022static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8023 int (*job_step) (struct ipr_cmnd *),
8024 enum ipr_shutdown_type shutdown_type)
8025{
8026 struct ipr_cmnd *ipr_cmd;
8027
8028 ioa_cfg->in_reset_reload = 1;
8029 ioa_cfg->allow_cmds = 0;
8030 scsi_block_requests(ioa_cfg->host);
8031
8032 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8033 ioa_cfg->reset_cmd = ipr_cmd;
8034 ipr_cmd->job_step = job_step;
8035 ipr_cmd->u.shutdown_type = shutdown_type;
8036
8037 ipr_reset_ioa_job(ipr_cmd);
8038}
8039
8040/**
8041 * ipr_initiate_ioa_reset - Initiate an adapter reset
8042 * @ioa_cfg: ioa config struct
8043 * @shutdown_type: shutdown type
8044 *
8045 * Description: This function will initiate the reset of the given adapter.
8046 * If the caller needs to wait on the completion of the reset,
8047 * the caller must sleep on the reset_wait_q.
8048 *
8049 * Return value:
8050 * none
8051 **/
8052static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8053 enum ipr_shutdown_type shutdown_type)
8054{
8055 if (ioa_cfg->ioa_is_dead)
8056 return;
8057
Brian King41e9a692011-09-21 08:51:11 -05008058 if (ioa_cfg->in_reset_reload) {
8059 if (ioa_cfg->sdt_state == GET_DUMP)
8060 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8061 else if (ioa_cfg->sdt_state == READ_DUMP)
8062 ioa_cfg->sdt_state = ABORT_DUMP;
8063 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008064
8065 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8066 dev_err(&ioa_cfg->pdev->dev,
8067 "IOA taken offline - error recovery failed\n");
8068
8069 ioa_cfg->reset_retries = 0;
8070 ioa_cfg->ioa_is_dead = 1;
8071
8072 if (ioa_cfg->in_ioa_bringdown) {
8073 ioa_cfg->reset_cmd = NULL;
8074 ioa_cfg->in_reset_reload = 0;
8075 ipr_fail_all_ops(ioa_cfg);
8076 wake_up_all(&ioa_cfg->reset_wait_q);
8077
8078 spin_unlock_irq(ioa_cfg->host->host_lock);
8079 scsi_unblock_requests(ioa_cfg->host);
8080 spin_lock_irq(ioa_cfg->host->host_lock);
8081 return;
8082 } else {
8083 ioa_cfg->in_ioa_bringdown = 1;
8084 shutdown_type = IPR_SHUTDOWN_NONE;
8085 }
8086 }
8087
8088 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8089 shutdown_type);
8090}
8091
8092/**
Linas Vepstasf8a88b192006-02-03 16:52:42 -06008093 * ipr_reset_freeze - Hold off all I/O activity
8094 * @ipr_cmd: ipr command struct
8095 *
8096 * Description: If the PCI slot is frozen, hold off all I/O
8097 * activity; then, as soon as the slot is available again,
8098 * initiate an adapter reset.
8099 */
8100static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8101{
8102 /* Disallow new interrupts, avoid loop */
8103 ipr_cmd->ioa_cfg->allow_interrupts = 0;
8104 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
8105 ipr_cmd->done = ipr_reset_ioa_job;
8106 return IPR_RC_JOB_RETURN;
8107}
8108
8109/**
8110 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8111 * @pdev: PCI device struct
8112 *
8113 * Description: This routine is called to tell us that the PCI bus
8114 * is down. Can't do anything here, except put the device driver
8115 * into a holding pattern, waiting for the PCI bus to come back.
8116 */
8117static void ipr_pci_frozen(struct pci_dev *pdev)
8118{
8119 unsigned long flags = 0;
8120 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8121
8122 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8123 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8124 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8125}
8126
8127/**
8128 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8129 * @pdev: PCI device struct
8130 *
8131 * Description: This routine is called by the pci error recovery
8132 * code after the PCI slot has been reset, just before we
8133 * should resume normal operations.
8134 */
8135static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8136{
8137 unsigned long flags = 0;
8138 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8139
8140 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
Brian King463fc692007-05-07 17:09:05 -05008141 if (ioa_cfg->needs_warm_reset)
8142 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8143 else
8144 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8145 IPR_SHUTDOWN_NONE);
Linas Vepstasf8a88b192006-02-03 16:52:42 -06008146 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8147 return PCI_ERS_RESULT_RECOVERED;
8148}
8149
8150/**
8151 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8152 * @pdev: PCI device struct
8153 *
8154 * Description: This routine is called when the PCI bus has
8155 * permanently failed.
8156 */
8157static void ipr_pci_perm_failure(struct pci_dev *pdev)
8158{
8159 unsigned long flags = 0;
8160 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8161
8162 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8163 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8164 ioa_cfg->sdt_state = ABORT_DUMP;
8165 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8166 ioa_cfg->in_ioa_bringdown = 1;
Kleber S. Souza6ff63892009-05-04 10:41:02 -03008167 ioa_cfg->allow_cmds = 0;
Linas Vepstasf8a88b192006-02-03 16:52:42 -06008168 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8169 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8170}
8171
8172/**
8173 * ipr_pci_error_detected - Called when a PCI error is detected.
8174 * @pdev: PCI device struct
8175 * @state: PCI channel state
8176 *
8177 * Description: Called when a PCI error is detected.
8178 *
8179 * Return value:
8180 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8181 */
8182static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8183 pci_channel_state_t state)
8184{
8185 switch (state) {
8186 case pci_channel_io_frozen:
8187 ipr_pci_frozen(pdev);
8188 return PCI_ERS_RESULT_NEED_RESET;
8189 case pci_channel_io_perm_failure:
8190 ipr_pci_perm_failure(pdev);
8191 return PCI_ERS_RESULT_DISCONNECT;
8192 break;
8193 default:
8194 break;
8195 }
8196 return PCI_ERS_RESULT_NEED_RESET;
8197}
8198
8199/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07008200 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8201 * @ioa_cfg: ioa cfg struct
8202 *
8203 * Description: This is the second phase of adapter intialization
8204 * This function takes care of initilizing the adapter to the point
8205 * where it can accept new commands.
8206
8207 * Return value:
Joe Perchesb1c11812008-02-03 17:28:22 +02008208 * 0 on success / -EIO on failure
Linus Torvalds1da177e2005-04-16 15:20:36 -07008209 **/
8210static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8211{
8212 int rc = 0;
8213 unsigned long host_lock_flags = 0;
8214
8215 ENTER;
8216 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8217 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
brking@us.ibm.comce155cc2005-11-17 09:35:12 -06008218 if (ioa_cfg->needs_hard_reset) {
8219 ioa_cfg->needs_hard_reset = 0;
8220 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8221 } else
8222 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8223 IPR_SHUTDOWN_NONE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008224
8225 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8226 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8227 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8228
8229 if (ioa_cfg->ioa_is_dead) {
8230 rc = -EIO;
8231 } else if (ipr_invalid_adapter(ioa_cfg)) {
8232 if (!ipr_testmode)
8233 rc = -EIO;
8234
8235 dev_err(&ioa_cfg->pdev->dev,
8236 "Adapter not supported in this hardware configuration.\n");
8237 }
8238
8239 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8240
8241 LEAVE;
8242 return rc;
8243}
8244
8245/**
8246 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8247 * @ioa_cfg: ioa config struct
8248 *
8249 * Return value:
8250 * none
8251 **/
8252static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8253{
8254 int i;
8255
8256 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8257 if (ioa_cfg->ipr_cmnd_list[i])
8258 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8259 ioa_cfg->ipr_cmnd_list[i],
8260 ioa_cfg->ipr_cmnd_list_dma[i]);
8261
8262 ioa_cfg->ipr_cmnd_list[i] = NULL;
8263 }
8264
8265 if (ioa_cfg->ipr_cmd_pool)
8266 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8267
8268 ioa_cfg->ipr_cmd_pool = NULL;
8269}
8270
8271/**
8272 * ipr_free_mem - Frees memory allocated for an adapter
8273 * @ioa_cfg: ioa cfg struct
8274 *
8275 * Return value:
8276 * nothing
8277 **/
8278static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8279{
8280 int i;
8281
8282 kfree(ioa_cfg->res_entries);
8283 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8284 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8285 ipr_free_cmd_blks(ioa_cfg);
8286 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8287 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008288 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8289 ioa_cfg->u.cfg_table,
Linus Torvalds1da177e2005-04-16 15:20:36 -07008290 ioa_cfg->cfg_table_dma);
8291
8292 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8293 pci_free_consistent(ioa_cfg->pdev,
8294 sizeof(struct ipr_hostrcb),
8295 ioa_cfg->hostrcb[i],
8296 ioa_cfg->hostrcb_dma[i]);
8297 }
8298
8299 ipr_free_dump(ioa_cfg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008300 kfree(ioa_cfg->trace);
8301}
8302
8303/**
8304 * ipr_free_all_resources - Free all allocated resources for an adapter.
8305 * @ipr_cmd: ipr command struct
8306 *
8307 * This function frees all allocated resources for the
8308 * specified adapter.
8309 *
8310 * Return value:
8311 * none
8312 **/
8313static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8314{
8315 struct pci_dev *pdev = ioa_cfg->pdev;
8316
8317 ENTER;
8318 free_irq(pdev->irq, ioa_cfg);
Wayne Boyer5a9ef252009-01-23 09:17:35 -08008319 pci_disable_msi(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008320 iounmap(ioa_cfg->hdw_dma_regs);
8321 pci_release_regions(pdev);
8322 ipr_free_mem(ioa_cfg);
8323 scsi_host_put(ioa_cfg->host);
8324 pci_disable_device(pdev);
8325 LEAVE;
8326}
8327
8328/**
8329 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8330 * @ioa_cfg: ioa config struct
8331 *
8332 * Return value:
8333 * 0 on success / -ENOMEM on allocation failure
8334 **/
8335static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8336{
8337 struct ipr_cmnd *ipr_cmd;
8338 struct ipr_ioarcb *ioarcb;
8339 dma_addr_t dma_addr;
8340 int i;
8341
8342 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
Wayne Boyera32c0552010-02-19 13:23:36 -08008343 sizeof(struct ipr_cmnd), 16, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008344
8345 if (!ioa_cfg->ipr_cmd_pool)
8346 return -ENOMEM;
8347
8348 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
Christoph Lametere94b1762006-12-06 20:33:17 -08008349 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008350
8351 if (!ipr_cmd) {
8352 ipr_free_cmd_blks(ioa_cfg);
8353 return -ENOMEM;
8354 }
8355
8356 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8357 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8358 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8359
8360 ioarcb = &ipr_cmd->ioarcb;
Wayne Boyera32c0552010-02-19 13:23:36 -08008361 ipr_cmd->dma_addr = dma_addr;
8362 if (ioa_cfg->sis64)
8363 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8364 else
8365 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8366
Linus Torvalds1da177e2005-04-16 15:20:36 -07008367 ioarcb->host_response_handle = cpu_to_be32(i << 2);
Wayne Boyera32c0552010-02-19 13:23:36 -08008368 if (ioa_cfg->sis64) {
8369 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8370 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8371 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
Wayne Boyer96d21f02010-05-10 09:13:27 -07008372 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
Wayne Boyera32c0552010-02-19 13:23:36 -08008373 } else {
8374 ioarcb->write_ioadl_addr =
8375 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8376 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8377 ioarcb->ioasa_host_pci_addr =
Wayne Boyer96d21f02010-05-10 09:13:27 -07008378 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
Wayne Boyera32c0552010-02-19 13:23:36 -08008379 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008380 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8381 ipr_cmd->cmd_index = i;
8382 ipr_cmd->ioa_cfg = ioa_cfg;
8383 ipr_cmd->sense_buffer_dma = dma_addr +
8384 offsetof(struct ipr_cmnd, sense_buffer);
8385
8386 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8387 }
8388
8389 return 0;
8390}
8391
8392/**
8393 * ipr_alloc_mem - Allocate memory for an adapter
8394 * @ioa_cfg: ioa config struct
8395 *
8396 * Return value:
8397 * 0 on success / non-zero for error
8398 **/
8399static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8400{
8401 struct pci_dev *pdev = ioa_cfg->pdev;
8402 int i, rc = -ENOMEM;
8403
8404 ENTER;
brking@us.ibm.com0bc42e32005-11-01 17:01:20 -06008405 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008406 ioa_cfg->max_devs_supported, GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008407
8408 if (!ioa_cfg->res_entries)
8409 goto out;
8410
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008411 if (ioa_cfg->sis64) {
8412 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8413 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8414 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8415 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8416 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8417 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8418 }
8419
8420 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07008421 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008422 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8423 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008424
8425 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8426 sizeof(struct ipr_misc_cbs),
8427 &ioa_cfg->vpd_cbs_dma);
8428
8429 if (!ioa_cfg->vpd_cbs)
8430 goto out_free_res_entries;
8431
8432 if (ipr_alloc_cmd_blks(ioa_cfg))
8433 goto out_free_vpd_cbs;
8434
8435 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8436 sizeof(u32) * IPR_NUM_CMD_BLKS,
8437 &ioa_cfg->host_rrq_dma);
8438
8439 if (!ioa_cfg->host_rrq)
8440 goto out_ipr_free_cmd_blocks;
8441
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008442 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8443 ioa_cfg->cfg_table_size,
8444 &ioa_cfg->cfg_table_dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008445
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008446 if (!ioa_cfg->u.cfg_table)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008447 goto out_free_host_rrq;
8448
8449 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8450 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8451 sizeof(struct ipr_hostrcb),
8452 &ioa_cfg->hostrcb_dma[i]);
8453
8454 if (!ioa_cfg->hostrcb[i])
8455 goto out_free_hostrcb_dma;
8456
8457 ioa_cfg->hostrcb[i]->hostrcb_dma =
8458 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
Brian King49dc6a12006-11-21 10:28:35 -06008459 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008460 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8461 }
8462
brking@us.ibm.com0bc42e32005-11-01 17:01:20 -06008463 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
Linus Torvalds1da177e2005-04-16 15:20:36 -07008464 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8465
8466 if (!ioa_cfg->trace)
8467 goto out_free_hostrcb_dma;
8468
Linus Torvalds1da177e2005-04-16 15:20:36 -07008469 rc = 0;
8470out:
8471 LEAVE;
8472 return rc;
8473
8474out_free_hostrcb_dma:
8475 while (i-- > 0) {
8476 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8477 ioa_cfg->hostrcb[i],
8478 ioa_cfg->hostrcb_dma[i]);
8479 }
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008480 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8481 ioa_cfg->u.cfg_table,
8482 ioa_cfg->cfg_table_dma);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008483out_free_host_rrq:
8484 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8485 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8486out_ipr_free_cmd_blocks:
8487 ipr_free_cmd_blks(ioa_cfg);
8488out_free_vpd_cbs:
8489 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8490 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8491out_free_res_entries:
8492 kfree(ioa_cfg->res_entries);
8493 goto out;
8494}
8495
8496/**
8497 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8498 * @ioa_cfg: ioa config struct
8499 *
8500 * Return value:
8501 * none
8502 **/
8503static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8504{
8505 int i;
8506
8507 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8508 ioa_cfg->bus_attr[i].bus = i;
8509 ioa_cfg->bus_attr[i].qas_enabled = 0;
8510 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8511 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8512 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8513 else
8514 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8515 }
8516}
8517
8518/**
8519 * ipr_init_ioa_cfg - Initialize IOA config struct
8520 * @ioa_cfg: ioa config struct
8521 * @host: scsi host struct
8522 * @pdev: PCI dev struct
8523 *
8524 * Return value:
8525 * none
8526 **/
8527static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8528 struct Scsi_Host *host, struct pci_dev *pdev)
8529{
8530 const struct ipr_interrupt_offsets *p;
8531 struct ipr_interrupts *t;
8532 void __iomem *base;
8533
8534 ioa_cfg->host = host;
8535 ioa_cfg->pdev = pdev;
8536 ioa_cfg->log_level = ipr_log_level;
brking@us.ibm.com3d1d0da2005-11-01 17:01:54 -06008537 ioa_cfg->doorbell = IPR_DOORBELL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008538 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8539 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8540 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8541 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8542 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8543 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8544 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8545 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8546
8547 INIT_LIST_HEAD(&ioa_cfg->free_q);
8548 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8549 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8550 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8551 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8552 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
David Howellsc4028952006-11-22 14:57:56 +00008553 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008554 init_waitqueue_head(&ioa_cfg->reset_wait_q);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008555 init_waitqueue_head(&ioa_cfg->msi_wait_q);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008556 ioa_cfg->sdt_state = INACTIVE;
8557
8558 ipr_initialize_bus_attr(ioa_cfg);
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008559 ioa_cfg->max_devs_supported = ipr_max_devs;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008560
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008561 if (ioa_cfg->sis64) {
8562 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8563 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8564 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8565 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8566 } else {
8567 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8568 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8569 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8570 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8571 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008572 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8573 host->unique_id = host->host_no;
8574 host->max_cmd_len = IPR_MAX_CDB_LEN;
8575 pci_set_drvdata(pdev, ioa_cfg);
8576
8577 p = &ioa_cfg->chip_cfg->regs;
8578 t = &ioa_cfg->regs;
8579 base = ioa_cfg->hdw_dma_regs;
8580
8581 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8582 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008583 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008584 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008585 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008586 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008587 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008588 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008589 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008590 t->ioarrin_reg = base + p->ioarrin_reg;
8591 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008592 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008593 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008594 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008595 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
Wayne Boyer214777b2010-02-19 13:24:26 -08008596 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
Wayne Boyerdcbad002010-02-19 13:24:14 -08008597
8598 if (ioa_cfg->sis64) {
Wayne Boyer214777b2010-02-19 13:24:26 -08008599 t->init_feedback_reg = base + p->init_feedback_reg;
Wayne Boyerdcbad002010-02-19 13:24:14 -08008600 t->dump_addr_reg = base + p->dump_addr_reg;
8601 t->dump_data_reg = base + p->dump_data_reg;
Wayne Boyer8701f182010-06-04 10:26:50 -07008602 t->endian_swap_reg = base + p->endian_swap_reg;
Wayne Boyerdcbad002010-02-19 13:24:14 -08008603 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07008604}
8605
8606/**
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008607 * ipr_get_chip_info - Find adapter chip information
Linus Torvalds1da177e2005-04-16 15:20:36 -07008608 * @dev_id: PCI device id struct
8609 *
8610 * Return value:
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008611 * ptr to chip information on success / NULL on failure
Linus Torvalds1da177e2005-04-16 15:20:36 -07008612 **/
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008613static const struct ipr_chip_t * __devinit
8614ipr_get_chip_info(const struct pci_device_id *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07008615{
8616 int i;
8617
Linus Torvalds1da177e2005-04-16 15:20:36 -07008618 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8619 if (ipr_chip[i].vendor == dev_id->vendor &&
8620 ipr_chip[i].device == dev_id->device)
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008621 return &ipr_chip[i];
Linus Torvalds1da177e2005-04-16 15:20:36 -07008622 return NULL;
8623}
8624
8625/**
Wayne Boyer95fecd92009-06-16 15:13:28 -07008626 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8627 * @pdev: PCI device struct
8628 *
8629 * Description: Simply set the msi_received flag to 1 indicating that
8630 * Message Signaled Interrupts are supported.
8631 *
8632 * Return value:
8633 * 0 on success / non-zero on failure
8634 **/
8635static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8636{
8637 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8638 unsigned long lock_flags = 0;
8639 irqreturn_t rc = IRQ_HANDLED;
8640
8641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8642
8643 ioa_cfg->msi_received = 1;
8644 wake_up(&ioa_cfg->msi_wait_q);
8645
8646 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8647 return rc;
8648}
8649
8650/**
8651 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8652 * @pdev: PCI device struct
8653 *
8654 * Description: The return value from pci_enable_msi() can not always be
8655 * trusted. This routine sets up and initiates a test interrupt to determine
8656 * if the interrupt is received via the ipr_test_intr() service routine.
8657 * If the tests fails, the driver will fall back to LSI.
8658 *
8659 * Return value:
8660 * 0 on success / non-zero on failure
8661 **/
8662static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8663 struct pci_dev *pdev)
8664{
8665 int rc;
8666 volatile u32 int_reg;
8667 unsigned long lock_flags = 0;
8668
8669 ENTER;
8670
8671 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8672 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8673 ioa_cfg->msi_received = 0;
8674 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
Wayne Boyer214777b2010-02-19 13:24:26 -08008675 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008676 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8677 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8678
8679 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8680 if (rc) {
8681 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8682 return rc;
8683 } else if (ipr_debug)
8684 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8685
Wayne Boyer214777b2010-02-19 13:24:26 -08008686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008687 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8688 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8689 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8690
8691 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8692 if (!ioa_cfg->msi_received) {
8693 /* MSI test failed */
8694 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8695 rc = -EOPNOTSUPP;
8696 } else if (ipr_debug)
8697 dev_info(&pdev->dev, "MSI test succeeded.\n");
8698
8699 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8700
8701 free_irq(pdev->irq, ioa_cfg);
8702
8703 LEAVE;
8704
8705 return rc;
8706}
8707
8708/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07008709 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8710 * @pdev: PCI device struct
8711 * @dev_id: PCI device id struct
8712 *
8713 * Return value:
8714 * 0 on success / non-zero on failure
8715 **/
8716static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8717 const struct pci_device_id *dev_id)
8718{
8719 struct ipr_ioa_cfg *ioa_cfg;
8720 struct Scsi_Host *host;
8721 unsigned long ipr_regs_pci;
8722 void __iomem *ipr_regs;
Eric Sesterhenna2a65a32006-09-25 16:59:07 -07008723 int rc = PCIBIOS_SUCCESSFUL;
Brian King473b1e82007-05-02 10:44:11 -05008724 volatile u32 mask, uproc, interrupts;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008725
8726 ENTER;
8727
8728 if ((rc = pci_enable_device(pdev))) {
8729 dev_err(&pdev->dev, "Cannot enable adapter\n");
8730 goto out;
8731 }
8732
8733 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8734
8735 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8736
8737 if (!host) {
8738 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8739 rc = -ENOMEM;
8740 goto out_disable;
8741 }
8742
8743 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8744 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
Brian King35a39692006-09-25 12:39:20 -05008745 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8746 sata_port_info.flags, &ipr_sata_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008747
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008748 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008749
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008750 if (!ioa_cfg->ipr_chip) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07008751 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8752 dev_id->vendor, dev_id->device);
8753 goto out_scsi_host_put;
8754 }
8755
Wayne Boyera32c0552010-02-19 13:23:36 -08008756 /* set SIS 32 or SIS 64 */
8757 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008758 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8759
Brian King5469cb52007-03-29 12:42:40 -05008760 if (ipr_transop_timeout)
8761 ioa_cfg->transop_timeout = ipr_transop_timeout;
8762 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8763 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8764 else
8765 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8766
Auke Kok44c10132007-06-08 15:46:36 -07008767 ioa_cfg->revid = pdev->revision;
Brian King463fc692007-05-07 17:09:05 -05008768
Linus Torvalds1da177e2005-04-16 15:20:36 -07008769 ipr_regs_pci = pci_resource_start(pdev, 0);
8770
8771 rc = pci_request_regions(pdev, IPR_NAME);
8772 if (rc < 0) {
8773 dev_err(&pdev->dev,
8774 "Couldn't register memory range of registers\n");
8775 goto out_scsi_host_put;
8776 }
8777
Arjan van de Ven25729a72008-09-28 16:18:02 -07008778 ipr_regs = pci_ioremap_bar(pdev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008779
8780 if (!ipr_regs) {
8781 dev_err(&pdev->dev,
8782 "Couldn't map memory range of registers\n");
8783 rc = -ENOMEM;
8784 goto out_release_regions;
8785 }
8786
8787 ioa_cfg->hdw_dma_regs = ipr_regs;
8788 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8789 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8790
8791 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8792
8793 pci_set_master(pdev);
8794
Wayne Boyera32c0552010-02-19 13:23:36 -08008795 if (ioa_cfg->sis64) {
8796 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8797 if (rc < 0) {
8798 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8799 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8800 }
8801
8802 } else
8803 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8804
Linus Torvalds1da177e2005-04-16 15:20:36 -07008805 if (rc < 0) {
8806 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8807 goto cleanup_nomem;
8808 }
8809
8810 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8811 ioa_cfg->chip_cfg->cache_line_size);
8812
8813 if (rc != PCIBIOS_SUCCESSFUL) {
8814 dev_err(&pdev->dev, "Write of cache line size failed\n");
8815 rc = -EIO;
8816 goto cleanup_nomem;
8817 }
8818
Wayne Boyer95fecd92009-06-16 15:13:28 -07008819 /* Enable MSI style interrupts if they are supported. */
Wayne Boyer1be7bd82009-06-17 09:55:35 -07008820 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
Wayne Boyer95fecd92009-06-16 15:13:28 -07008821 rc = ipr_test_msi(ioa_cfg, pdev);
8822 if (rc == -EOPNOTSUPP)
8823 pci_disable_msi(pdev);
8824 else if (rc)
8825 goto out_msi_disable;
8826 else
8827 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8828 } else if (ipr_debug)
8829 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8830
Linus Torvalds1da177e2005-04-16 15:20:36 -07008831 /* Save away PCI config space for use following IOA reset */
8832 rc = pci_save_state(pdev);
8833
8834 if (rc != PCIBIOS_SUCCESSFUL) {
8835 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8836 rc = -EIO;
Julia Lawallf170c682011-07-11 14:08:25 -07008837 goto out_msi_disable;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008838 }
8839
8840 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
Julia Lawallf170c682011-07-11 14:08:25 -07008841 goto out_msi_disable;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008842
8843 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
Julia Lawallf170c682011-07-11 14:08:25 -07008844 goto out_msi_disable;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008845
Wayne Boyer3e7ebdf2010-02-19 13:23:59 -08008846 if (ioa_cfg->sis64)
8847 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8848 + ((sizeof(struct ipr_config_table_entry64)
8849 * ioa_cfg->max_devs_supported)));
8850 else
8851 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8852 + ((sizeof(struct ipr_config_table_entry)
8853 * ioa_cfg->max_devs_supported)));
8854
Linus Torvalds1da177e2005-04-16 15:20:36 -07008855 rc = ipr_alloc_mem(ioa_cfg);
8856 if (rc < 0) {
8857 dev_err(&pdev->dev,
8858 "Couldn't allocate enough memory for device driver!\n");
Julia Lawallf170c682011-07-11 14:08:25 -07008859 goto out_msi_disable;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008860 }
8861
brking@us.ibm.comce155cc2005-11-17 09:35:12 -06008862 /*
8863 * If HRRQ updated interrupt is not masked, or reset alert is set,
8864 * the card is in an unknown state and needs a hard reset
8865 */
Wayne Boyer214777b2010-02-19 13:24:26 -08008866 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8867 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8868 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
brking@us.ibm.comce155cc2005-11-17 09:35:12 -06008869 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8870 ioa_cfg->needs_hard_reset = 1;
Anton Blanchard5d7c20b2011-08-01 19:43:45 +10008871 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
Brian King473b1e82007-05-02 10:44:11 -05008872 ioa_cfg->needs_hard_reset = 1;
8873 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8874 ioa_cfg->ioa_unit_checked = 1;
brking@us.ibm.comce155cc2005-11-17 09:35:12 -06008875
Linus Torvalds1da177e2005-04-16 15:20:36 -07008876 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008877 rc = request_irq(pdev->irq, ipr_isr,
8878 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8879 IPR_NAME, ioa_cfg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008880
8881 if (rc) {
8882 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8883 pdev->irq, rc);
8884 goto cleanup_nolog;
8885 }
8886
Brian King463fc692007-05-07 17:09:05 -05008887 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8888 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8889 ioa_cfg->needs_warm_reset = 1;
8890 ioa_cfg->reset = ipr_reset_slot_reset;
8891 } else
8892 ioa_cfg->reset = ipr_reset_start_bist;
8893
Linus Torvalds1da177e2005-04-16 15:20:36 -07008894 spin_lock(&ipr_driver_lock);
8895 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8896 spin_unlock(&ipr_driver_lock);
8897
8898 LEAVE;
8899out:
8900 return rc;
8901
8902cleanup_nolog:
8903 ipr_free_mem(ioa_cfg);
Wayne Boyer95fecd92009-06-16 15:13:28 -07008904out_msi_disable:
8905 pci_disable_msi(pdev);
Julia Lawallf170c682011-07-11 14:08:25 -07008906cleanup_nomem:
8907 iounmap(ipr_regs);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008908out_release_regions:
8909 pci_release_regions(pdev);
8910out_scsi_host_put:
8911 scsi_host_put(host);
8912out_disable:
8913 pci_disable_device(pdev);
8914 goto out;
8915}
8916
8917/**
8918 * ipr_scan_vsets - Scans for VSET devices
8919 * @ioa_cfg: ioa config struct
8920 *
8921 * Description: Since the VSET resources do not follow SAM in that we can have
8922 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8923 *
8924 * Return value:
8925 * none
8926 **/
8927static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8928{
8929 int target, lun;
8930
8931 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8932 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8933 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8934}
8935
8936/**
8937 * ipr_initiate_ioa_bringdown - Bring down an adapter
8938 * @ioa_cfg: ioa config struct
8939 * @shutdown_type: shutdown type
8940 *
8941 * Description: This function will initiate bringing down the adapter.
8942 * This consists of issuing an IOA shutdown to the adapter
8943 * to flush the cache, and running BIST.
8944 * If the caller needs to wait on the completion of the reset,
8945 * the caller must sleep on the reset_wait_q.
8946 *
8947 * Return value:
8948 * none
8949 **/
8950static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8951 enum ipr_shutdown_type shutdown_type)
8952{
8953 ENTER;
8954 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8955 ioa_cfg->sdt_state = ABORT_DUMP;
8956 ioa_cfg->reset_retries = 0;
8957 ioa_cfg->in_ioa_bringdown = 1;
8958 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8959 LEAVE;
8960}
8961
8962/**
8963 * __ipr_remove - Remove a single adapter
8964 * @pdev: pci device struct
8965 *
8966 * Adapter hot plug remove entry point.
8967 *
8968 * Return value:
8969 * none
8970 **/
8971static void __ipr_remove(struct pci_dev *pdev)
8972{
8973 unsigned long host_lock_flags = 0;
8974 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8975 ENTER;
8976
8977 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
Brian King970ea292007-04-26 16:00:06 -05008978 while(ioa_cfg->in_reset_reload) {
8979 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8980 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8981 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8982 }
8983
Linus Torvalds1da177e2005-04-16 15:20:36 -07008984 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8985
8986 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8987 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
Tejun Heoa684b8d2011-01-24 14:57:28 +01008988 flush_work_sync(&ioa_cfg->work_q);
Linus Torvalds1da177e2005-04-16 15:20:36 -07008989 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8990
8991 spin_lock(&ipr_driver_lock);
8992 list_del(&ioa_cfg->queue);
8993 spin_unlock(&ipr_driver_lock);
8994
8995 if (ioa_cfg->sdt_state == ABORT_DUMP)
8996 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8997 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8998
8999 ipr_free_all_resources(ioa_cfg);
9000
9001 LEAVE;
9002}
9003
9004/**
9005 * ipr_remove - IOA hot plug remove entry point
9006 * @pdev: pci device struct
9007 *
9008 * Adapter hot plug remove entry point.
9009 *
9010 * Return value:
9011 * none
9012 **/
Kleber S. Souzaf3816422009-04-22 10:50:28 -03009013static void __devexit ipr_remove(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07009014{
9015 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9016
9017 ENTER;
9018
Tony Jonesee959b02008-02-22 00:13:36 +01009019 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07009020 &ipr_trace_attr);
Tony Jonesee959b02008-02-22 00:13:36 +01009021 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07009022 &ipr_dump_attr);
9023 scsi_remove_host(ioa_cfg->host);
9024
9025 __ipr_remove(pdev);
9026
9027 LEAVE;
9028}
9029
9030/**
9031 * ipr_probe - Adapter hot plug add entry point
9032 *
9033 * Return value:
9034 * 0 on success / non-zero on failure
9035 **/
9036static int __devinit ipr_probe(struct pci_dev *pdev,
9037 const struct pci_device_id *dev_id)
9038{
9039 struct ipr_ioa_cfg *ioa_cfg;
9040 int rc;
9041
9042 rc = ipr_probe_ioa(pdev, dev_id);
9043
9044 if (rc)
9045 return rc;
9046
9047 ioa_cfg = pci_get_drvdata(pdev);
9048 rc = ipr_probe_ioa_part2(ioa_cfg);
9049
9050 if (rc) {
9051 __ipr_remove(pdev);
9052 return rc;
9053 }
9054
9055 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9056
9057 if (rc) {
9058 __ipr_remove(pdev);
9059 return rc;
9060 }
9061
Tony Jonesee959b02008-02-22 00:13:36 +01009062 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07009063 &ipr_trace_attr);
9064
9065 if (rc) {
9066 scsi_remove_host(ioa_cfg->host);
9067 __ipr_remove(pdev);
9068 return rc;
9069 }
9070
Tony Jonesee959b02008-02-22 00:13:36 +01009071 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07009072 &ipr_dump_attr);
9073
9074 if (rc) {
Tony Jonesee959b02008-02-22 00:13:36 +01009075 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
Linus Torvalds1da177e2005-04-16 15:20:36 -07009076 &ipr_trace_attr);
9077 scsi_remove_host(ioa_cfg->host);
9078 __ipr_remove(pdev);
9079 return rc;
9080 }
9081
9082 scsi_scan_host(ioa_cfg->host);
9083 ipr_scan_vsets(ioa_cfg);
9084 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9085 ioa_cfg->allow_ml_add_del = 1;
brking@us.ibm.com11cd8f12005-11-01 17:00:11 -06009086 ioa_cfg->host->max_channel = IPR_VSET_BUS;
Linus Torvalds1da177e2005-04-16 15:20:36 -07009087 schedule_work(&ioa_cfg->work_q);
9088 return 0;
9089}
9090
9091/**
9092 * ipr_shutdown - Shutdown handler.
Greg Kroah-Hartmand18c3db2005-06-23 17:35:56 -07009093 * @pdev: pci device struct
Linus Torvalds1da177e2005-04-16 15:20:36 -07009094 *
9095 * This function is invoked upon system shutdown/reboot. It will issue
9096 * an adapter shutdown to the adapter to flush the write cache.
9097 *
9098 * Return value:
9099 * none
9100 **/
Greg Kroah-Hartmand18c3db2005-06-23 17:35:56 -07009101static void ipr_shutdown(struct pci_dev *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07009102{
Greg Kroah-Hartmand18c3db2005-06-23 17:35:56 -07009103 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07009104 unsigned long lock_flags = 0;
9105
9106 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
Brian King970ea292007-04-26 16:00:06 -05009107 while(ioa_cfg->in_reset_reload) {
9108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9109 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9110 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9111 }
9112
Linus Torvalds1da177e2005-04-16 15:20:36 -07009113 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9115 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9116}
9117
9118static struct pci_device_id ipr_pci_table[] __devinitdata = {
9119 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
Brian King6d84c942007-01-23 11:25:23 -06009120 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009121 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
Brian King6d84c942007-01-23 11:25:23 -06009122 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009123 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
Brian King6d84c942007-01-23 11:25:23 -06009124 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009125 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
Brian King6d84c942007-01-23 11:25:23 -06009126 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009127 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
Brian King6d84c942007-01-23 11:25:23 -06009128 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009129 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
Brian King6d84c942007-01-23 11:25:23 -06009130 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009131 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
Brian King6d84c942007-01-23 11:25:23 -06009132 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06009133 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
Brian King5469cb52007-03-29 12:42:40 -05009134 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9135 IPR_USE_LONG_TRANSOP_TIMEOUT },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06009136 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
Brian King6d84c942007-01-23 11:25:23 -06009137 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06009138 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
Brian King22d2e402007-04-26 16:00:13 -05009139 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9140 IPR_USE_LONG_TRANSOP_TIMEOUT },
Brian King60e74862006-11-21 10:28:10 -06009141 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
Brian King5469cb52007-03-29 12:42:40 -05009142 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9143 IPR_USE_LONG_TRANSOP_TIMEOUT },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06009144 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
Brian King6d84c942007-01-23 11:25:23 -06009145 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06009146 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
Brian King22d2e402007-04-26 16:00:13 -05009147 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9148 IPR_USE_LONG_TRANSOP_TIMEOUT},
Brian King60e74862006-11-21 10:28:10 -06009149 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
Brian King5469cb52007-03-29 12:42:40 -05009150 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9151 IPR_USE_LONG_TRANSOP_TIMEOUT },
Brian King60e74862006-11-21 10:28:10 -06009152 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
Brian King22d2e402007-04-26 16:00:13 -05009153 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9154 IPR_USE_LONG_TRANSOP_TIMEOUT },
Brian King185eb312007-03-29 12:42:53 -05009155 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
Brian King185eb312007-03-29 12:42:53 -05009156 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
9157 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
Wayne Boyerb0f56d32010-06-24 13:34:14 -07009158 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
9159 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
Brian King5469cb52007-03-29 12:42:40 -05009160 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
Brian King463fc692007-05-07 17:09:05 -05009161 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009162 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
Brian King6d84c942007-01-23 11:25:23 -06009163 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009164 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
Brian King6d84c942007-01-23 11:25:23 -06009165 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
brking@us.ibm.com86f51432005-11-01 17:02:42 -06009166 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
Brian King5469cb52007-03-29 12:42:40 -05009167 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9168 IPR_USE_LONG_TRANSOP_TIMEOUT },
Brian King60e74862006-11-21 10:28:10 -06009169 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
Brian King5469cb52007-03-29 12:42:40 -05009170 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9171 IPR_USE_LONG_TRANSOP_TIMEOUT },
Wayne Boyerd7b46272010-02-19 13:24:38 -08009172 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9173 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9174 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9175 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9176 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9177 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
Wayne Boyer32622bd2010-10-18 20:24:34 -07009178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
Wayne Boyer5a918352011-10-27 11:58:21 -07009179 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
9180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
Wayne Boyer32622bd2010-10-18 20:24:34 -07009181 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
Wayne Boyerd7b46272010-02-19 13:24:38 -08009182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9183 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9185 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9187 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9188 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9189 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
9190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9191 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
Linus Torvalds1da177e2005-04-16 15:20:36 -07009192 { }
9193};
9194MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9195
Linas Vepstasf8a88b192006-02-03 16:52:42 -06009196static struct pci_error_handlers ipr_err_handler = {
9197 .error_detected = ipr_pci_error_detected,
9198 .slot_reset = ipr_pci_slot_reset,
9199};
9200
Linus Torvalds1da177e2005-04-16 15:20:36 -07009201static struct pci_driver ipr_driver = {
9202 .name = IPR_NAME,
9203 .id_table = ipr_pci_table,
9204 .probe = ipr_probe,
Kleber S. Souzaf3816422009-04-22 10:50:28 -03009205 .remove = __devexit_p(ipr_remove),
Greg Kroah-Hartmand18c3db2005-06-23 17:35:56 -07009206 .shutdown = ipr_shutdown,
Linas Vepstasf8a88b192006-02-03 16:52:42 -06009207 .err_handler = &ipr_err_handler,
Linus Torvalds1da177e2005-04-16 15:20:36 -07009208};
9209
9210/**
Wayne Boyerf72919e2010-02-19 13:24:21 -08009211 * ipr_halt_done - Shutdown prepare completion
9212 *
9213 * Return value:
9214 * none
9215 **/
9216static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9217{
9218 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9219
9220 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9221}
9222
9223/**
9224 * ipr_halt - Issue shutdown prepare to all adapters
9225 *
9226 * Return value:
9227 * NOTIFY_OK on success / NOTIFY_DONE on failure
9228 **/
9229static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9230{
9231 struct ipr_cmnd *ipr_cmd;
9232 struct ipr_ioa_cfg *ioa_cfg;
9233 unsigned long flags = 0;
9234
9235 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9236 return NOTIFY_DONE;
9237
9238 spin_lock(&ipr_driver_lock);
9239
9240 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9241 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9242 if (!ioa_cfg->allow_cmds) {
9243 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9244 continue;
9245 }
9246
9247 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9248 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9249 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9250 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9251 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9252
9253 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9255 }
9256 spin_unlock(&ipr_driver_lock);
9257
9258 return NOTIFY_OK;
9259}
9260
9261static struct notifier_block ipr_notifier = {
9262 ipr_halt, NULL, 0
9263};
9264
9265/**
Linus Torvalds1da177e2005-04-16 15:20:36 -07009266 * ipr_init - Module entry point
9267 *
9268 * Return value:
9269 * 0 on success / negative value on failure
9270 **/
9271static int __init ipr_init(void)
9272{
9273 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9274 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9275
Wayne Boyerf72919e2010-02-19 13:24:21 -08009276 register_reboot_notifier(&ipr_notifier);
Henrik Kretzschmardcbccbde2006-09-25 16:58:58 -07009277 return pci_register_driver(&ipr_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07009278}
9279
9280/**
9281 * ipr_exit - Module unload
9282 *
9283 * Module unload entry point.
9284 *
9285 * Return value:
9286 * none
9287 **/
9288static void __exit ipr_exit(void)
9289{
Wayne Boyerf72919e2010-02-19 13:24:21 -08009290 unregister_reboot_notifier(&ipr_notifier);
Linus Torvalds1da177e2005-04-16 15:20:36 -07009291 pci_unregister_driver(&ipr_driver);
9292}
9293
9294module_init(ipr_init);
9295module_exit(ipr_exit);