projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge remote branch 'wireless-next/master' into ath6kl-next
[deliverable/linux.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static 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;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
1da177e4
LT		 101static 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[] = {
60e7486b 105 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4
LT		 106 .mailbox = 0x0042C,
107 .cache_line_size = 0x20,
108 {
109 .set_interrupt_mask_reg = 0x0022C,
110 .clr_interrupt_mask_reg = 0x00230,
214777ba 111 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 112 .sense_interrupt_mask_reg = 0x0022C,
214777ba 113 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 114 .clr_interrupt_reg = 0x00228,
214777ba 115 .clr_interrupt_reg32 = 0x00228,
1da177e4 116 .sense_interrupt_reg = 0x00224,
214777ba 117 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 118 .ioarrin_reg = 0x00404,
119 .sense_uproc_interrupt_reg = 0x00214,
214777ba 120 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 121 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 122 .set_uproc_interrupt_reg32 = 0x00214,
123 .clr_uproc_interrupt_reg = 0x00218,
124 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 125 }
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,
214777ba 133 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 134 .sense_interrupt_mask_reg = 0x00288,
214777ba 135 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 136 .clr_interrupt_reg = 0x00284,
214777ba 137 .clr_interrupt_reg32 = 0x00284,
1da177e4 138 .sense_interrupt_reg = 0x00280,
214777ba 139 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 140 .ioarrin_reg = 0x00504,
141 .sense_uproc_interrupt_reg = 0x00290,
214777ba 142 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 143 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 144 .set_uproc_interrupt_reg32 = 0x00290,
145 .clr_uproc_interrupt_reg = 0x00294,
146 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 147 }
148 },
a74c1639 149 { /* CRoC */
110def85 150 .mailbox = 0x00044,
a74c1639
WB		 151 .cache_line_size = 0x20,
152 {
153 .set_interrupt_mask_reg = 0x00010,
154 .clr_interrupt_mask_reg = 0x00018,
214777ba 155 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 156 .sense_interrupt_mask_reg = 0x00010,
214777ba 157 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 158 .clr_interrupt_reg = 0x00008,
214777ba 159 .clr_interrupt_reg32 = 0x0000C,
a74c1639 160 .sense_interrupt_reg = 0x00000,
214777ba 161 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 162 .ioarrin_reg = 0x00070,
163 .sense_uproc_interrupt_reg = 0x00020,
214777ba 164 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 165 .set_uproc_interrupt_reg = 0x00020,
214777ba 166 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 167 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 168 .clr_uproc_interrupt_reg32 = 0x0002C,
169 .init_feedback_reg = 0x0005C,
dcbad00e 170 .dump_addr_reg = 0x00064,
8701f185
WB		 171 .dump_data_reg = 0x00068,
172 .endian_swap_reg = 0x00084
a74c1639
WB		 173 }
174 },
1da177e4
LT		 175};
176
177static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 178 { 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] },
cd9b3d04 186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 187};
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");
2cf22be0 201module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 202MODULE_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)");
2cf22be0 205module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 206MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 207module_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)");
3e7ebdfa
WB		 209module_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) "]");
1da177e4
LT		 212MODULE_LICENSE("GPL");
213MODULE_VERSION(IPR_DRIVER_VERSION);
214
1da177e4
LT		 215/* A constant array of IOASCs/URCs/Error Messages */
216static const
217struct ipr_error_table_t ipr_error_table[] = {
933916f3 218 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 219 "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"},
933916f3 226 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 227 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 228 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 229 "4101: Soft device bus fabric error"},
5aa3a333
WB		 230 {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"},
933916f3 244 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 245 "FFF9: Device sector reassign successful"},
933916f3 246 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 247 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 248 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 249 "7001: IOA sector reassignment successful"},
933916f3 250 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 251 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 252 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 253 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 254 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 255 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 256 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 257 "FFF6: Device hardware error recovered by the IOA"},
933916f3 258 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 259 "FFF6: Device hardware error recovered by the device"},
933916f3 260 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 261 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 262 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 263 "FFFA: Undefined device response recovered by the IOA"},
933916f3 264 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 265 "FFF6: Device bus error, message or command phase"},
933916f3 266 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 267 "FFFE: Task Management Function failed"},
933916f3 268 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 269 "FFF6: Failure prediction threshold exceeded"},
933916f3 270 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 271 "8009: Impending cache battery pack failure"},
272 {0x02040400, 0, 0,
273 "34FF: Disk device format in progress"},
65f56475
BK		 274 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
275 "9070: IOA requested reset"},
1da177e4
LT		 276 {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"},
933916f3 282 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 283 "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"},
933916f3 288 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 289 "FFF3: Disk media format bad"},
933916f3 290 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 291 "3002: Addressed device failed to respond to selection"},
933916f3 292 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 293 "3100: Device bus error"},
933916f3 294 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 295 "3109: IOA timed out a device command"},
296 {0x04088000, 0, 0,
297 "3120: SCSI bus is not operational"},
933916f3 298 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 299 "4100: Hard device bus fabric error"},
5aa3a333
WB		 300 {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"},
933916f3 314 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 315 "9000: IOA reserved area data check"},
933916f3 316 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 317 "9001: IOA reserved area invalid data pattern"},
933916f3 318 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 319 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 320 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
321 "Hardware Error, IOA metadata access error"},
933916f3 322 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 323 "102E: Out of alternate sectors for disk storage"},
933916f3 324 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 325 "FFF4: Data transfer underlength error"},
933916f3 326 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 327 "FFF4: Data transfer overlength error"},
933916f3 328 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 329 "3400: Logical unit failure"},
933916f3 330 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 331 "FFF4: Device microcode is corrupt"},
933916f3 332 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 333 "8150: PCI bus error"},
334 {0x04430000, 1, 0,
335 "Unsupported device bus message received"},
933916f3 336 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 337 "FFF4: Disk device problem"},
933916f3 338 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 339 "8150: Permanent IOA failure"},
933916f3 340 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 341 "3010: Disk device returned wrong response to IOA"},
933916f3 342 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 343 "8151: IOA microcode error"},
344 {0x04448500, 0, 0,
345 "Device bus status error"},
933916f3 346 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 347 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 348 {0x04448700, 0, 0,
349 "ATA device status error"},
1da177e4
LT		 350 {0x04490000, 0, 0,
351 "Message reject received from the device"},
933916f3 352 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 353 "8008: A permanent cache battery pack failure occurred"},
933916f3 354 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 355 "9090: Disk unit has been modified after the last known status"},
933916f3 356 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 357 "9081: IOA detected device error"},
933916f3 358 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 359 "9082: IOA detected device error"},
933916f3 360 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 361 "3110: Device bus error, message or command phase"},
933916f3 362 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 363 "3110: SAS Command / Task Management Function failed"},
933916f3 364 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 365 "9091: Incorrect hardware configuration change has been detected"},
933916f3 366 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 367 "9073: Invalid multi-adapter configuration"},
933916f3 368 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 369 "4010: Incorrect connection between cascaded expanders"},
933916f3 370 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 371 "4020: Connections exceed IOA design limits"},
933916f3 372 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 373 "4030: Incorrect multipath connection"},
933916f3 374 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 375 "4110: Unsupported enclosure function"},
933916f3 376 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 377 "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"},
b0df54bb 382 {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"},
5aa3a333
WB		 386 {0x05258200, 0, 0,
387 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 388 {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"},
b0df54bb 396 {0x052C8000, 1, 0,
397 "Illegal request, dual adapter support not enabled"},
933916f3 398 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 399 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 400 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 401 "9040: Array protection temporarily suspended, protection resuming"},
933916f3 402 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 403 "3140: Device bus not ready to ready transition"},
933916f3 404 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 405 "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"},
933916f3 410 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 411 "FFFB: SCSI bus was reset by another initiator"},
933916f3 412 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 413 "3029: A device replacement has occurred"},
933916f3 414 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 415 "9051: IOA cache data exists for a missing or failed device"},
933916f3 416 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 417 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 418 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 419 "9025: Disk unit is not supported at its physical location"},
933916f3 420 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 421 "3020: IOA detected a SCSI bus configuration error"},
933916f3 422 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 423 "3150: SCSI bus configuration error"},
933916f3 424 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 425 "9074: Asymmetric advanced function disk configuration"},
933916f3 426 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 427 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 428 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 429 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 430 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 431 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 432 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 433 "9076: Configuration error, missing remote IOA"},
933916f3 434 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 435 "4050: Enclosure does not support a required multipath function"},
b75424fc
WB		 436 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
437 "4070: Logically bad block written on device"},
933916f3 438 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 439 "9041: Array protection temporarily suspended"},
933916f3 440 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 441 "9042: Corrupt array parity detected on specified device"},
933916f3 442 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 443 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 444 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 445 "9071: Link operational transition"},
933916f3 446 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 447 "9072: Link not operational transition"},
933916f3 448 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 449 "9032: Array exposed but still protected"},
e435340c
BK		 450 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
451 "70DD: Device forced failed by disrupt device command"},
933916f3 452 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 453 "4061: Multipath redundancy level got better"},
933916f3 454 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 455 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 456 {0x07270000, 0, 0,
457 "Failure due to other device"},
933916f3 458 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 459 "9008: IOA does not support functions expected by devices"},
933916f3 460 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 461 "9010: Cache data associated with attached devices cannot be found"},
933916f3 462 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 463 "9011: Cache data belongs to devices other than those attached"},
933916f3 464 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 465 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 466 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 467 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 468 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 469 "9022: Exposed array is missing a required device"},
933916f3 470 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 471 "9023: Array member(s) not at required physical locations"},
933916f3 472 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 473 "9024: Array not functional due to present hardware configuration"},
933916f3 474 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 475 "9026: Array not functional due to present hardware configuration"},
933916f3 476 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 477 "9027: Array is missing a device and parity is out of sync"},
933916f3 478 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 479 "9028: Maximum number of arrays already exist"},
933916f3 480 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 481 "9050: Required cache data cannot be located for a disk unit"},
933916f3 482 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 483 "9052: Cache data exists for a device that has been modified"},
933916f3 484 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 485 "9054: IOA resources not available due to previous problems"},
933916f3 486 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 487 "9092: Disk unit requires initialization before use"},
933916f3 488 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 489 "9029: Incorrect hardware configuration change has been detected"},
933916f3 490 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 491 "9060: One or more disk pairs are missing from an array"},
933916f3 492 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 493 "9061: One or more disks are missing from an array"},
933916f3 494 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 495 "9062: One or more disks are missing from an array"},
933916f3 496 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 497 "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;
a32c055f
WB		 550 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;
35a39691 554 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 555 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;
96d21f00
WB		 572 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
573 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 574 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 575
576 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 577 ioarcb->data_transfer_length = 0;
1da177e4 578 ioarcb->read_data_transfer_length = 0;
a32c055f 579 ioarcb->ioadl_len = 0;
1da177e4 580 ioarcb->read_ioadl_len = 0;
a32c055f 581
96d21f00 582 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 583 ioarcb->u.sis64_addr_data.data_ioadl_addr =
584 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 585 ioasa64->u.gata.status = 0;
586 } else {
a32c055f
WB		 587 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;
96d21f00 590 ioasa->u.gata.status = 0;
a32c055f
WB		 591 }
592
96d21f00
WB		 593 ioasa->hdr.ioasc = 0;
594 ioasa->hdr.residual_data_len = 0;
1da177e4 595 ipr_cmd->scsi_cmd = NULL;
35a39691 596 ipr_cmd->qc = NULL;
1da177e4
LT		 597 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
1da177e4
LT		 635/**
636 * 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 */
214777ba
WB		 655 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);
1da177e4
LT		 659
660 /* Clear any pending interrupts */
214777ba
WB		 661 if (ioa_cfg->sis64)
662 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
663 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 664 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
7dce0e1c
BK		 678 if (pcix_cmd_reg == 0)
679 return 0;
1da177e4
LT		 680
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 }
1da177e4
LT		 708 }
709
710 return 0;
711}
712
35a39691
BK		 713/**
714 * 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
1da177e4
LT		 735/**
736 * 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
63015bc9 752 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 753 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
96d21f00
WB		 774 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);
1da177e4
LT		 776
777 if (ipr_cmd->scsi_cmd)
778 ipr_cmd->done = ipr_scsi_eh_done;
35a39691
BK		 779 else if (ipr_cmd->qc)
780 ipr_cmd->done = ipr_sata_eh_done;
1da177e4
LT		 781
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
a32c055f
WB		 790/**
791 * 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
1da177e4
LT		 819/**
820 * 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();
a32c055f
WB		 851
852 ipr_send_command(ipr_cmd);
1da177e4
LT		 853}
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
a32c055f
WB		 873/**
874 * 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
1da177e4
LT		 918/**
919 * 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
a32c055f
WB		 975 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
976 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 977
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();
a32c055f
WB		 986
987 ipr_send_command(ipr_cmd);
1da177e4
LT		 988 } else {
989 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
990 }
991}
992
3e7ebdfa
WB		 993/**
994 * ipr_update_ata_class - Update the ata class in the resource entry
995 * @res: resource entry struct
996 * @proto: cfgte device bus protocol value
997 *
998 * Return value:
999 * none
1000 **/
1001static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1002{
1003 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
1da177e4
LT		 1018/**
1019 * ipr_init_res_entry - Initialize a resource entry struct.
1020 * @res: resource entry struct
3e7ebdfa 1021 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1022 *
1023 * Return value:
1024 * none
1025 **/
3e7ebdfa
WB		 1026static void ipr_init_res_entry(struct ipr_resource_entry *res,
1027 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1028{
3e7ebdfa
WB		 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
ee0a90fa 1034 res->needs_sync_complete = 0;
1da177e4
LT		 1035 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;
35a39691 1040 res->sata_port = NULL;
3e7ebdfa
WB		 1041
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);
438b0331 1046 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1047
1048 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1049 sizeof(res->res_path));
1050
1051 res->bus = 0;
0cb992ed
WB		 1052 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1053 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1054 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 }
3e7ebdfa
WB		 1069 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1070 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1071 res->target = 0;
1072 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1073 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1074 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1075 ioa_cfg->max_devs_supported);
1076 set_bit(res->target, ioa_cfg->array_ids);
1077 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1078 res->bus = IPR_VSET_VIRTUAL_BUS;
1079 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1080 ioa_cfg->max_devs_supported);
1081 set_bit(res->target, ioa_cfg->vset_ids);
1082 } else {
1083 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1084 ioa_cfg->max_devs_supported);
1085 set_bit(res->target, ioa_cfg->target_ids);
1086 }
1087 } else {
1088 proto = cfgtew->u.cfgte->proto;
1089 res->qmodel = IPR_QUEUEING_MODEL(res);
1090 res->flags = cfgtew->u.cfgte->flags;
1091 if (res->flags & IPR_IS_IOA_RESOURCE)
1092 res->type = IPR_RES_TYPE_IOAFP;
1093 else
1094 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1095
1096 res->bus = cfgtew->u.cfgte->res_addr.bus;
1097 res->target = cfgtew->u.cfgte->res_addr.target;
1098 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1099 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1100 }
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)) &&
0cb992ed 1119 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1120 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/**
5adcbeb3 1134 * ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1135 * @res_path: resource path
1136 * @buf: buffer
1137 *
1138 * Return value:
1139 * pointer to buffer
1140 **/
5adcbeb3 1141static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1142{
1143 int i;
5adcbeb3 1144 char *p = buffer;
3e7ebdfa 1145
46d74563 1146 *p = '\0';
5adcbeb3
WB		 1147 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]);
3e7ebdfa
WB		 1150
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;
75576bb9 1172 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1173
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",
5adcbeb3
WB		 1194 ipr_format_res_path(res->res_path, buffer,
1195 sizeof(buffer)));
3e7ebdfa
WB		 1196 } 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);
1da177e4
LT		 1243}
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,
3e7ebdfa 1254 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1255{
1256 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1257 struct ipr_config_table_entry_wrapper cfgtew;
1258 __be32 cc_res_handle;
1259
1da177e4
LT		 1260 u32 is_ndn = 1;
1261
3e7ebdfa
WB		 1262 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 }
1da177e4
LT		 1269
1270 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1271 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1272 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);
3e7ebdfa 1289 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1290 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1291 }
1292
3e7ebdfa 1293 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1294
1295 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1296 if (res->sdev) {
1da177e4 1297 res->del_from_ml = 1;
3e7ebdfa 1298 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 1299 if (ioa_cfg->allow_ml_add_del)
1300 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1301 } else {
1302 ipr_clear_res_target(res);
1da177e4 1303 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1304 }
5767a1c4 1305 } else if (!res->sdev || res->del_from_ml) {
1da177e4
LT		 1306 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;
96d21f00 1328 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1329
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
8cf093e2
BK		 1344/**
1345 * 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
1da177e4
LT		 1391/**
1392 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1393 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1394 *
1395 * Return value:
1396 * none
1397 **/
cfc32139 1398static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1399{
1400 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1401 + IPR_SERIAL_NUM_LEN];
1402
cfc32139 1403 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1404 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1405 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
cfc32139 1409 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1410 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1411 ipr_err(" Serial Number: %s\n", buffer);
1412}
1413
8cf093e2
BK		 1414/**
1415 * 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
ee0f05b8 1431/**
1432 * 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{
4565e370
WB		 1456 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;
ee0f05b8 1462
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
1da177e4
LT		 1481/**
1482 * 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");
cfc32139 1497 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1498 ipr_err("Adapter Card Information:\n");
cfc32139 1499 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1500
1501 ipr_err("-----Expected Configuration-----\n");
1502 ipr_err("Cache Directory Card Information:\n");
cfc32139 1503 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1504 ipr_err("Adapter Card Information:\n");
cfc32139 1505 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1506
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
ee0f05b8 1513/**
1514 * 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
4565e370
WB		 1553/**
1554 * 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,
5adcbeb3
WB		 1581 ipr_format_res_path(dev_entry->res_path, buffer,
1582 sizeof(buffer)));
4565e370
WB		 1583 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
1da177e4
LT		 1596/**
1597 * 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
cfc32139 1617 dev_entry = error->dev;
1da177e4
LT		 1618
1619 for (i = 0; i < errors_logged; i++, dev_entry++) {
1620 ipr_err_separator;
1621
fa15b1f6 1622 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1623 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1624
1625 ipr_err("-----New Device Information-----\n");
cfc32139 1626 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1627
1628 ipr_err("Cache Directory Card Information:\n");
cfc32139 1629 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1630
1631 ipr_err("Adapter Card Information:\n");
cfc32139 1632 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1633
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
ee0f05b8 1643/**
1644 * 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),
7262026f 1674 ARRAY_SIZE(error->array_member));
ee0f05b8 1675
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
1da177e4
LT		 1694/**
1695 * 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++) {
cfc32139 1726 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1727 continue;
1728
fa15b1f6 1729 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1730 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1731 else
1da177e4 1732 ipr_err("Array Member %d:\n", i);
1da177e4 1733
cfc32139 1734 ipr_log_vpd(&array_entry->vpd);
1da177e4 1735
fa15b1f6 1736 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");
1da177e4
LT		 1739
1740 ipr_err_separator;
1741
1742 if (i == 9)
1743 array_entry = error->array_member2;
1744 else
1745 array_entry++;
1746 }
1747}
1748
1749/**
b0df54bb 1750 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1751 * @ioa_cfg: ioa config struct
b0df54bb 1752 * @data: IOA error data
1753 * @len: data length
1da177e4
LT		 1754 *
1755 * Return value:
1756 * none
1757 **/
ac719aba 1758static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1759{
1760 int i;
1da177e4 1761
b0df54bb 1762 if (len == 0)
1da177e4
LT		 1763 return;
1764
ac719aba
BK		 1765 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1766 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1767
b0df54bb 1768 for (i = 0; i < len / 4; i += 4) {
1da177e4 1769 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb 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]));
1da177e4
LT		 1774 }
1775}
1776
ee0f05b8 1777/**
1778 * 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
4565e370
WB		 1790 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
ee0f05b8 1795 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1796 strim(error->failure_reason);
ee0f05b8 1797
8cf093e2
BK		 1798 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);
ac719aba 1801 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8 1802 be32_to_cpu(hostrcb->hcam.length) -
1803 (offsetof(struct ipr_hostrcb_error, u) +
1804 offsetof(struct ipr_hostrcb_type_17_error, data)));
1805}
1806
b0df54bb 1807/**
1808 * 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';
ca54cb8c 1822 strim(error->failure_reason);
b0df54bb 1823
8cf093e2
BK		 1824 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);
ac719aba 1827 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb 1828 be32_to_cpu(hostrcb->hcam.length) -
1829 (offsetof(struct ipr_hostrcb_error, u) +
1830 offsetof(struct ipr_hostrcb_type_07_error, data)));
1831}
1832
49dc6a18
BK		 1833static 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
4565e370
WB		 1901/**
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,
5adcbeb3
WB		 1928 ipr_format_res_path(fabric->res_path, buffer,
1929 sizeof(buffer)));
4565e370
WB		 1930 return;
1931 }
1932 }
1933
1934 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
5adcbeb3 1935 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
4565e370
WB		 1936}
1937
49dc6a18
BK		 1938static 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
4565e370
WB		 2046/**
2047 * 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,
5adcbeb3
WB		 2076 ipr_format_res_path(cfg->res_path, buffer,
2077 sizeof(buffer)),
4565e370
WB		 2078 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,
5adcbeb3 2085 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
4565e370
WB		 2086 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
49dc6a18
BK		 2090/**
2091 * 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
ac719aba 2124 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2125}
2126
4565e370
WB		 2127/**
2128 * 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,
5adcbeb3 2150 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
4565e370
WB		 2151
2152 ipr_err_separator;
2153
2154 array_entry = error->array_member;
7262026f
WB		 2155 num_entries = min_t(u32, error->num_entries,
2156 ARRAY_SIZE(error->array_member));
4565e370
WB		 2157
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);
7262026f 2170 ipr_err("Current Location: %s\n",
5adcbeb3
WB		 2171 ipr_format_res_path(array_entry->res_path, buffer,
2172 sizeof(buffer)));
7262026f 2173 ipr_err("Expected Location: %s\n",
5adcbeb3
WB		 2174 ipr_format_res_path(array_entry->expected_res_path,
2175 buffer, sizeof(buffer)));
4565e370
WB		 2176
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
b0df54bb 2219/**
2220 * 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{
ac719aba 2230 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb 2231 be32_to_cpu(hostrcb->hcam.length));
2232}
2233
1da177e4
LT		 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++)
35a39691 2250 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2251 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
4565e370
WB		 2278 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);
1da177e4 2282
4565e370
WB		 2283 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2284 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2285 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2286 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2287 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2288 }
2289
2290 error_index = ipr_get_error(ioasc);
2291
2292 if (!ipr_error_table[error_index].log_hcam)
2293 return;
2294
49dc6a18 2295 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2296
2297 /* Set indication we have logged an error */
2298 ioa_cfg->errors_logged++;
2299
933916f3 2300 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2301 return;
cf852037 2302 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2303 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2304
2305 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2306 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;
b0df54bb 2316 case IPR_HOST_RCB_OVERLAY_ID_7:
2317 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2318 break;
ee0f05b8 2319 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;
49dc6a18
BK		 2332 case IPR_HOST_RCB_OVERLAY_ID_20:
2333 ipr_log_fabric_error(ioa_cfg, hostrcb);
2334 break;
4565e370
WB		 2335 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;
cf852037 2345 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2346 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2347 default:
a9cfca96 2348 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2349 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;
96d21f00 2368 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2369 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);
1da177e4
LT		 2375
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);
65f56475
BK		 2381 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2382 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2383 } 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;
3e7ebdfa 2499 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2500 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') {
3e7ebdfa
WB		 2505 vpids = &res->std_inq_data.vpids;
2506 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2507 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) {
3e7ebdfa 2541 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2542 continue;
2543
3e7ebdfa 2544 if (bus != res->bus)
1da177e4
LT		 2545 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
dcbad00e
WB		 2589/**
2590 * 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
1da177e4
LT		 2614/**
2615 * 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
dcbad00e
WB		 2631 if (ioa_cfg->sis64)
2632 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2633 dest, length_in_words);
2634
1da177e4
LT		 2635 /* Write IOA interrupt reg starting LDUMP state */
2636 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2637 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2638
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,
214777ba 2656 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2657
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,
214777ba 2681 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2682
2683 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2684 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2685
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 =
214777ba 2693 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2694
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;
4d4dd706 2721 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2722 __be32 *page;
2723 unsigned long lock_flags = 0;
2724 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2725
4d4dd706
KSS		 2726 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
1da177e4 2731 while (bytes_copied < length &&
4d4dd706 2732 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2733 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;
71610f55 2876 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 2877 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;
4d4dd706
KSS		 2894 u32 num_entries, max_num_entries, start_off, end_off;
2895 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 2896 struct ipr_sdt *sdt;
dcbad00e 2897 int valid = 1;
1da177e4
LT		 2898 int i;
2899
2900 ENTER;
2901
2902 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2903
41e9a696 2904 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 2905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2906 return;
2907 }
2908
110def85
WB		 2909 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
1da177e4
LT		 2915 start_addr = readl(ioa_cfg->ioa_mailbox);
2916
dcbad00e 2917 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 2918 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);
1da177e4
LT		 2946 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
4d4dd706
KSS		 2956 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));
1da177e4 2966 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 2967 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 2968
2969 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 2970 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))) {
1da177e4
LT		 2972 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
4d4dd706
KSS		 2983 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);
1da177e4
LT		 2992
2993 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2994
2995 for (i = 0; i < num_entries; i++) {
4d4dd706 2996 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 2997 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2998 break;
2999 }
3000
3001 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3002 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);
3008
3009 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) {
4d4dd706 3015 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3016 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
4d4dd706 3070 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3071 kfree(dump);
3072 LEAVE;
3073}
3074
3075/**
3076 * ipr_worker_thread - Worker thread
c4028958 3077 * @work: ioa config struct
1da177e4
LT		 3078 *
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 **/
c4028958 3086static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3087{
3088 unsigned long lock_flags;
3089 struct ipr_resource_entry *res;
3090 struct scsi_device *sdev;
3091 struct ipr_dump *dump;
c4028958
DH		 3092 struct ipr_ioa_cfg *ioa_cfg =
3093 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3094 u8 bus, target, lun;
3095 int did_work;
3096
3097 ENTER;
3098 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3099
41e9a696 3100 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3101 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);
4c647e90 3112 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3113 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)) {
5767a1c4
KSS		 3131 if (!res->add_to_ml)
3132 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3133 else
3134 res->del_from_ml = 0;
1da177e4
LT		 3135 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) {
3e7ebdfa
WB		 3147 bus = res->bus;
3148 target = res->target;
3149 lun = res->lun;
1121b794 3150 res->add_to_ml = 0;
1da177e4
LT		 3151 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);
ee959b00 3159 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3160 LEAVE;
3161}
3162
3163#ifdef CONFIG_SCSI_IPR_TRACE
3164/**
3165 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3166 * @filp: open sysfs file
1da177e4 3167 * @kobj: kobject struct
91a69029 3168 * @bin_attr: bin_attribute struct
1da177e4
LT		 3169 * @buf: buffer
3170 * @off: offset
3171 * @count: buffer size
3172 *
3173 * Return value:
3174 * number of bytes printed to buffer
3175 **/
2c3c8bea 3176static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3177 struct bin_attribute *bin_attr,
3178 char *buf, loff_t off, size_t count)
1da177e4 3179{
ee959b00
TJ		 3180 struct device *dev = container_of(kobj, struct device, kobj);
3181 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3182 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3183 unsigned long lock_flags = 0;
d777aaf3 3184 ssize_t ret;
1da177e4
LT		 3185
3186 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3187 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3188 IPR_TRACE_SIZE);
1da177e4 3189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3190
3191 return ret;
1da177e4
LT		 3192}
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
ee959b00
TJ		 3206 * @dev: class device struct
3207 * @buf: buffer
1da177e4
LT		 3208 *
3209 * Return value:
3210 * number of bytes printed to buffer
3211 **/
ee959b00
TJ		 3212static ssize_t ipr_show_fw_version(struct device *dev,
3213 struct device_attribute *attr, char *buf)
1da177e4 3214{
ee959b00 3215 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3216 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
ee959b00 3230static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3231 .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
ee959b00
TJ		 3240 * @dev: class device struct
3241 * @buf: buffer
1da177e4
LT		 3242 *
3243 * Return value:
3244 * number of bytes printed to buffer
3245 **/
ee959b00
TJ		 3246static ssize_t ipr_show_log_level(struct device *dev,
3247 struct device_attribute *attr, char *buf)
1da177e4 3248{
ee959b00 3249 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3250 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
ee959b00
TJ		 3262 * @dev: class device struct
3263 * @buf: buffer
1da177e4
LT		 3264 *
3265 * Return value:
3266 * number of bytes printed to buffer
3267 **/
ee959b00
TJ		 3268static ssize_t ipr_store_log_level(struct device *dev,
3269 struct device_attribute *attr,
1da177e4
LT		 3270 const char *buf, size_t count)
3271{
ee959b00 3272 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3273 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
ee959b00 3282static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3283 .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
ee959b00
TJ		 3293 * @dev: device struct
3294 * @buf: buffer
3295 * @count: buffer size
1da177e4
LT		 3296 *
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 **/
ee959b00
TJ		 3303static ssize_t ipr_store_diagnostics(struct device *dev,
3304 struct device_attribute *attr,
1da177e4
LT		 3305 const char *buf, size_t count)
3306{
ee959b00 3307 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3308 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
1da177e4 3315 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3316 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
1da177e4
LT		 3322 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
ee959b00 3344static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3345 .attr = {
3346 .name = "run_diagnostics",
3347 .mode = S_IWUSR,
3348 },
3349 .store = ipr_store_diagnostics
3350};
3351
f37eb54b 3352/**
3353 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3354 * @class_dev: device struct
3355 * @buf: buffer
f37eb54b 3356 *
3357 * Return value:
3358 * number of bytes printed to buffer
3359 **/
ee959b00
TJ		 3360static ssize_t ipr_show_adapter_state(struct device *dev,
3361 struct device_attribute *attr, char *buf)
f37eb54b 3362{
ee959b00 3363 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3364 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
ee959b00
TJ		 3379 * @dev: device struct
3380 * @buf: buffer
3381 * @count: buffer size
f37eb54b 3382 *
3383 * This function will change the adapter's state.
3384 *
3385 * Return value:
3386 * count on success / other on failure
3387 **/
ee959b00
TJ		 3388static ssize_t ipr_store_adapter_state(struct device *dev,
3389 struct device_attribute *attr,
f37eb54b 3390 const char *buf, size_t count)
3391{
ee959b00 3392 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3393 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
ee959b00 3413static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3414 .attr = {
49dd0961 3415 .name = "online_state",
f37eb54b 3416 .mode = S_IRUGO | S_IWUSR,
3417 },
3418 .show = ipr_show_adapter_state,
3419 .store = ipr_store_adapter_state
3420};
3421
1da177e4
LT		 3422/**
3423 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3424 * @dev: device struct
3425 * @buf: buffer
3426 * @count: buffer size
1da177e4
LT		 3427 *
3428 * This function will reset the adapter.
3429 *
3430 * Return value:
3431 * count on success / other on failure
3432 **/
ee959b00
TJ		 3433static ssize_t ipr_store_reset_adapter(struct device *dev,
3434 struct device_attribute *attr,
1da177e4
LT		 3435 const char *buf, size_t count)
3436{
ee959b00 3437 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3438 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
ee959b00 3454static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3455 .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 */
0bc42e35 3495 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3496 (sizeof(struct scatterlist) * (num_elem - 1)),
3497 GFP_KERNEL);
3498
3499 if (sglist == NULL) {
3500 ipr_trace;
3501 return NULL;
3502 }
3503
1da177e4 3504 scatterlist = sglist->scatterlist;
45711f1a 3505 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3506
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--)
45711f1a 3518 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3519 kfree(sglist);
3520 return NULL;
3521 }
3522
642f1490 3523 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3524 }
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++)
45711f1a 3544 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3545
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) {
45711f1a
JA		 3574 struct page *page = sg_page(&scatterlist[i]);
3575
3576 kaddr = kmap(page);
1da177e4 3577 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3578 kunmap(page);
1da177e4
LT		 3579
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) {
45711f1a
JA		 3589 struct page *page = sg_page(&scatterlist[i]);
3590
3591 kaddr = kmap(page);
1da177e4 3592 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3593 kunmap(page);
1da177e4
LT		 3594
3595 scatterlist[i].length = len % bsize_elem;
3596 }
3597
3598 sglist->buffer_len = len;
3599 return result;
3600}
3601
a32c055f
WB		 3602/**
3603 * 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
1da177e4 3633/**
12baa420 3634 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3635 * @ipr_cmd: ipr command struct
3636 * @sglist: scatter/gather list
1da177e4 3637 *
12baa420 3638 * Builds a microcode download IOA data list (IOADL).
1da177e4 3639 *
1da177e4 3640 **/
12baa420 3641static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3642 struct ipr_sglist *sglist)
1da177e4 3643{
1da177e4 3644 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3645 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3646 struct scatterlist *scatterlist = sglist->scatterlist;
3647 int i;
3648
12baa420 3649 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3650 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3651 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3652
3653 ioarcb->ioadl_len =
1da177e4
LT		 3654 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
12baa420 3663 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);
970ea294
BK		 3683 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 }
12baa420 3688
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");
3693 return -EIO;
1da177e4 3694 }
12baa420 3695
3696 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");
1da177e4
LT		 3703 return -EIO;
3704 }
3705
12baa420 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);
1da177e4
LT		 3714 return 0;
3715}
3716
3717/**
3718 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3719 * @class_dev: device struct
3720 * @buf: buffer
3721 * @count: buffer size
1da177e4
LT		 3722 *
3723 * This function will update the firmware on the adapter.
3724 *
3725 * Return value:
3726 * count on success / other on failure
3727 **/
ee959b00
TJ		 3728static ssize_t ipr_store_update_fw(struct device *dev,
3729 struct device_attribute *attr,
3730 const char *buf, size_t count)
1da177e4 3731{
ee959b00 3732 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3733 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;
1da177e4
LT		 3737 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
1da177e4
LT		 3754 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");
12baa420 3769 goto out;
1da177e4
LT		 3770 }
3771
14ed9cc7
WB		 3772 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
3773
12baa420 3774 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 3775
12baa420 3776 if (!result)
3777 result = count;
3778out:
1da177e4
LT		 3779 ipr_free_ucode_buffer(sglist);
3780 release_firmware(fw_entry);
12baa420 3781 return result;
1da177e4
LT		 3782}
3783
ee959b00 3784static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 3785 .attr = {
3786 .name = "update_fw",
3787 .mode = S_IWUSR,
3788 },
3789 .store = ipr_store_update_fw
3790};
3791
75576bb9
WB		 3792/**
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
ee959b00 3822static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 3823 &ipr_fw_version_attr,
3824 &ipr_log_level_attr,
3825 &ipr_diagnostics_attr,
f37eb54b 3826 &ipr_ioa_state_attr,
1da177e4
LT		 3827 &ipr_ioa_reset_attr,
3828 &ipr_update_fw_attr,
75576bb9 3829 &ipr_ioa_fw_type_attr,
1da177e4
LT		 3830 NULL,
3831};
3832
3833#ifdef CONFIG_SCSI_IPR_DUMP
3834/**
3835 * ipr_read_dump - Dump the adapter
2c3c8bea 3836 * @filp: open sysfs file
1da177e4 3837 * @kobj: kobject struct
91a69029 3838 * @bin_attr: bin_attribute struct
1da177e4
LT		 3839 * @buf: buffer
3840 * @off: offset
3841 * @count: buffer size
3842 *
3843 * Return value:
3844 * number of bytes printed to buffer
3845 **/
2c3c8bea 3846static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3847 struct bin_attribute *bin_attr,
3848 char *buf, loff_t off, size_t count)
1da177e4 3849{
ee959b00 3850 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 3851 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;
4d4dd706 3856 int len, sdt_end;
1da177e4
LT		 3857 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
4d4dd706
KSS		 3896 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;
1da177e4
LT		 3907 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
4d4dd706 3916 off -= sdt_end;
1da177e4
LT		 3917
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;
4d4dd706 3945 __be32 **ioa_data;
1da177e4
LT		 3946 unsigned long lock_flags = 0;
3947
0bc42e35 3948 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 3949
3950 if (!dump) {
3951 ipr_err("Dump memory allocation failed\n");
3952 return -ENOMEM;
3953 }
3954
4d4dd706
KSS		 3955 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
1da177e4
LT		 3968 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);
4d4dd706 3975 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3976 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
1da177e4
LT		 3988 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
2c3c8bea 4023 * @filp: open sysfs file
1da177e4 4024 * @kobj: kobject struct
91a69029 4025 * @bin_attr: bin_attribute struct
1da177e4
LT		 4026 * @buf: buffer
4027 * @off: offset
4028 * @count: buffer size
4029 *
4030 * Return value:
4031 * number of bytes printed to buffer
4032 **/
2c3c8bea 4033static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4034 struct bin_attribute *bin_attr,
4035 char *buf, loff_t off, size_t count)
1da177e4 4036{
ee959b00 4037 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4038 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
e881a172 4075 * @reason: calling context
1da177e4
LT		 4076 *
4077 * Return value:
4078 * actual depth set
4079 **/
e881a172
MC		 4080static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4081 int reason)
1da177e4 4082{
35a39691
BK		 4083 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
e881a172
MC		 4087 if (reason != SCSI_QDEPTH_DEFAULT)
4088 return -EOPNOTSUPP;
4089
35a39691
BK		 4090 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
1da177e4
LT		 4097 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
46d74563 4142 * @attr: device attribute structure
1da177e4
LT		 4143 * @buf: buffer
4144 *
4145 * Return value:
4146 * number of bytes printed to buffer
4147 **/
10523b3b 4148static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4149{
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)
3e7ebdfa 4159 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4160 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
3e7ebdfa 4172/**
5adcbeb3
WB		 4173 * ipr_show_resource_path - Show the resource path or the resource address for
4174 * this device.
3e7ebdfa 4175 * @dev: device struct
46d74563 4176 * @attr: device attribute structure
3e7ebdfa
WB		 4177 * @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;
5adcbeb3 4193 if (res && ioa_cfg->sis64)
3e7ebdfa 4194 len = snprintf(buf, PAGE_SIZE, "%s\n",
5adcbeb3
WB		 4195 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
3e7ebdfa
WB		 4201 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",
75576bb9 4208 .mode = S_IRUGO,
3e7ebdfa
WB		 4209 },
4210 .show = ipr_show_resource_path
4211};
4212
46d74563
WB		 4213/**
4214 * 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
75576bb9
WB		 4249/**
4250 * ipr_show_resource_type - Show the resource type for this device.
4251 * @dev: device struct
46d74563 4252 * @attr: device attribute structure
75576bb9
WB		 4253 * @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
1da177e4
LT		 4284static struct device_attribute *ipr_dev_attrs[] = {
4285 &ipr_adapter_handle_attr,
3e7ebdfa 4286 &ipr_resource_path_attr,
46d74563 4287 &ipr_device_id_attr,
75576bb9 4288 &ipr_resource_type_attr,
1da177e4
LT		 4289 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
35a39691
BK		 4327/**
4328 * 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) {
3e7ebdfa
WB		 4341 if ((res->bus == starget->channel) &&
4342 (res->target == starget->id) &&
4343 (res->lun == 0)) {
35a39691
BK		 4344 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;
3e7ebdfa
WB		 4413 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 }
35a39691
BK		 4424
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) {
3e7ebdfa
WB		 4445 if ((res->bus == sdev->channel) &&
4446 (res->target == sdev->id) &&
4447 (res->lun == sdev->lun))
35a39691
BK		 4448 return res;
4449 }
4450
4451 return NULL;
4452}
4453
1da177e4
LT		 4454/**
4455 * 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) {
35a39691 4472 if (res->sata_port)
3e4ec344 4473 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4474 sdev->hostdata = NULL;
4475 res->sdev = NULL;
35a39691 4476 res->sata_port = NULL;
1da177e4
LT		 4477 }
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;
dd406ef8 4494 struct ata_port *ap = NULL;
1da177e4 4495 unsigned long lock_flags = 0;
3e7ebdfa 4496 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4497
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;
0726ce26 4503 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4504 sdev->scsi_level = 4;
0726ce26 4505 sdev->no_uld_attach = 1;
4506 }
1da177e4 4507 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4508 blk_queue_rq_timeout(sdev->request_queue,
4509 IPR_VSET_RW_TIMEOUT);
086fa5ff 4510 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4511 }
dd406ef8
BK		 4512 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) {
35a39691 4517 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8
BK		 4518 ata_sas_slave_configure(sdev, ap);
4519 } else
35a39691 4520 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3e7ebdfa
WB		 4521 if (ioa_cfg->sis64)
4522 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
5adcbeb3
WB		 4523 ipr_format_res_path(res->res_path, buffer,
4524 sizeof(buffer)));
dd406ef8 4525 return 0;
1da177e4
LT		 4526 }
4527 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4528 return 0;
4529}
4530
35a39691
BK		 4531/**
4532 * 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
1da177e4
LT		 4558/**
4559 * 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:
692aebfc 4568 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4569 **/
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;
692aebfc 4575 int rc = -ENXIO;
1da177e4
LT		 4576
4577 sdev->hostdata = NULL;
4578
4579 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4580
35a39691
BK		 4581 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);
1da177e4
LT		 4593 }
4594 }
4595
4596 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4597
692aebfc 4598 return rc;
1da177e4
LT		 4599}
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 **/
df0ae249 4608static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4609{
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
a92fa25c
KSS		 4616 if (!ioa_cfg->in_reset_reload) {
4617 dev_err(&ioa_cfg->pdev->dev,
4618 "Adapter being reset as a result of error recovery.\n");
1da177e4 4619
a92fa25c
KSS		 4620 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4621 ioa_cfg->sdt_state = GET_DUMP;
4622 }
1da177e4
LT		 4623
4624 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4625
4626 LEAVE;
4627 return rc;
4628}
4629
df0ae249
JG		 4630static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4631{
4632 int rc;
4633
4634 spin_lock_irq(cmd->device->host->host_lock);
4635 rc = __ipr_eh_host_reset(cmd);
4636 spin_unlock_irq(cmd->device->host->host_lock);
4637
4638 return rc;
4639}
4640
c6513096
BK		 4641/**
4642 * ipr_device_reset - Reset the device
4643 * @ioa_cfg: ioa config struct
4644 * @res: resource entry struct
4645 *
4646 * This function issues a device reset to the affected device.
4647 * If the device is a SCSI device, a LUN reset will be sent
4648 * to the device first. If that does not work, a target reset
35a39691
BK		 4649 * will be sent. If the device is a SATA device, a PHY reset will
4650 * be sent.
c6513096
BK		 4651 *
4652 * Return value:
4653 * 0 on success / non-zero on failure
4654 **/
4655static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4656 struct ipr_resource_entry *res)
4657{
4658 struct ipr_cmnd *ipr_cmd;
4659 struct ipr_ioarcb *ioarcb;
4660 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4661 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4662 u32 ioasc;
4663
4664 ENTER;
4665 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4666 ioarcb = &ipr_cmd->ioarcb;
4667 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4668
4669 if (ipr_cmd->ioa_cfg->sis64) {
4670 regs = &ipr_cmd->i.ata_ioadl.regs;
4671 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4672 } else
4673 regs = &ioarcb->u.add_data.u.regs;
c6513096 4674
3e7ebdfa 4675 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4676 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4677 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4678 if (ipr_is_gata(res)) {
4679 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4680 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4681 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4682 }
c6513096
BK		 4683
4684 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4685 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
c6513096 4686 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
96d21f00
WB		 4687 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4688 if (ipr_cmd->ioa_cfg->sis64)
4689 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4690 sizeof(struct ipr_ioasa_gata));
4691 else
4692 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4693 sizeof(struct ipr_ioasa_gata));
4694 }
c6513096
BK		 4695
4696 LEAVE;
4697 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4698}
4699
35a39691
BK		 4700/**
4701 * ipr_sata_reset - Reset the SATA port
cc0680a5 4702 * @link: SATA link to reset
35a39691
BK		 4703 * @classes: class of the attached device
4704 *
cc0680a5 4705 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4706 *
4707 * Return value:
4708 * 0 on success / non-zero on failure
4709 **/
cc0680a5 4710static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4711 unsigned long deadline)
35a39691 4712{
cc0680a5 4713 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4714 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4715 struct ipr_resource_entry *res;
4716 unsigned long lock_flags = 0;
4717 int rc = -ENXIO;
4718
4719 ENTER;
4720 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
73d98ff0
BK		 4721 while(ioa_cfg->in_reset_reload) {
4722 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4723 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4724 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4725 }
4726
35a39691
BK		 4727 res = sata_port->res;
4728 if (res) {
4729 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4730 *classes = res->ata_class;
35a39691
BK		 4731 }
4732
4733 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4734 LEAVE;
4735 return rc;
4736}
4737
1da177e4
LT		 4738/**
4739 * ipr_eh_dev_reset - Reset the device
4740 * @scsi_cmd: scsi command struct
4741 *
4742 * This function issues a device reset to the affected device.
4743 * A LUN reset will be sent to the device first. If that does
4744 * not work, a target reset will be sent.
4745 *
4746 * Return value:
4747 * SUCCESS / FAILED
4748 **/
94d0e7b8 4749static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4750{
4751 struct ipr_cmnd *ipr_cmd;
4752 struct ipr_ioa_cfg *ioa_cfg;
4753 struct ipr_resource_entry *res;
35a39691
BK		 4754 struct ata_port *ap;
4755 int rc = 0;
1da177e4
LT		 4756
4757 ENTER;
4758 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4759 res = scsi_cmd->device->hostdata;
4760
eeb88307 4761 if (!res)
1da177e4
LT		 4762 return FAILED;
4763
4764 /*
4765 * If we are currently going through reset/reload, return failed. This will force the
4766 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4767 * reset to complete
4768 */
4769 if (ioa_cfg->in_reset_reload)
4770 return FAILED;
4771 if (ioa_cfg->ioa_is_dead)
4772 return FAILED;
4773
4774 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4775 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
1da177e4
LT		 4776 if (ipr_cmd->scsi_cmd)
4777 ipr_cmd->done = ipr_scsi_eh_done;
24d6f2b5
BK		 4778 if (ipr_cmd->qc)
4779 ipr_cmd->done = ipr_sata_eh_done;
7402ecef
BK		 4780 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4781 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4782 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4783 }
1da177e4
LT		 4784 }
4785 }
4786
4787 res->resetting_device = 1;
fb3ed3cb 4788 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 4789
4790 if (ipr_is_gata(res) && res->sata_port) {
4791 ap = res->sata_port->ap;
4792 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 4793 ata_std_error_handler(ap);
35a39691 4794 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26
BK		 4795
4796 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4797 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5af23d26
BK		 4798 rc = -EIO;
4799 break;
4800 }
4801 }
35a39691
BK		 4802 } else
4803 rc = ipr_device_reset(ioa_cfg, res);
1da177e4
LT		 4804 res->resetting_device = 0;
4805
1da177e4 4806 LEAVE;
c6513096 4807 return (rc ? FAILED : SUCCESS);
1da177e4
LT		 4808}
4809
94d0e7b8
JG		 4810static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4811{
4812 int rc;
4813
4814 spin_lock_irq(cmd->device->host->host_lock);
4815 rc = __ipr_eh_dev_reset(cmd);
4816 spin_unlock_irq(cmd->device->host->host_lock);
4817
4818 return rc;
4819}
4820
1da177e4
LT		 4821/**
4822 * ipr_bus_reset_done - Op done function for bus reset.
4823 * @ipr_cmd: ipr command struct
4824 *
4825 * This function is the op done function for a bus reset
4826 *
4827 * Return value:
4828 * none
4829 **/
4830static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4831{
4832 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4833 struct ipr_resource_entry *res;
4834
4835 ENTER;
3e7ebdfa
WB		 4836 if (!ioa_cfg->sis64)
4837 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4838 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4839 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4840 break;
4841 }
1da177e4 4842 }
1da177e4
LT		 4843
4844 /*
4845 * If abort has not completed, indicate the reset has, else call the
4846 * abort's done function to wake the sleeping eh thread
4847 */
4848 if (ipr_cmd->sibling->sibling)
4849 ipr_cmd->sibling->sibling = NULL;
4850 else
4851 ipr_cmd->sibling->done(ipr_cmd->sibling);
4852
4853 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4854 LEAVE;
4855}
4856
4857/**
4858 * ipr_abort_timeout - An abort task has timed out
4859 * @ipr_cmd: ipr command struct
4860 *
4861 * This function handles when an abort task times out. If this
4862 * happens we issue a bus reset since we have resources tied
4863 * up that must be freed before returning to the midlayer.
4864 *
4865 * Return value:
4866 * none
4867 **/
4868static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4869{
4870 struct ipr_cmnd *reset_cmd;
4871 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4872 struct ipr_cmd_pkt *cmd_pkt;
4873 unsigned long lock_flags = 0;
4874
4875 ENTER;
4876 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4877 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4878 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4879 return;
4880 }
4881
fb3ed3cb 4882 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 4883 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4884 ipr_cmd->sibling = reset_cmd;
4885 reset_cmd->sibling = ipr_cmd;
4886 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4887 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4888 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4889 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4890 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4891
4892 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4893 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4894 LEAVE;
4895}
4896
4897/**
4898 * ipr_cancel_op - Cancel specified op
4899 * @scsi_cmd: scsi command struct
4900 *
4901 * This function cancels specified op.
4902 *
4903 * Return value:
4904 * SUCCESS / FAILED
4905 **/
4906static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4907{
4908 struct ipr_cmnd *ipr_cmd;
4909 struct ipr_ioa_cfg *ioa_cfg;
4910 struct ipr_resource_entry *res;
4911 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 4912 u32 ioasc, int_reg;
1da177e4
LT		 4913 int op_found = 0;
4914
4915 ENTER;
4916 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4917 res = scsi_cmd->device->hostdata;
4918
8fa728a2
JG		 4919 /* If we are currently going through reset/reload, return failed.
4920 * This will force the mid-layer to call ipr_eh_host_reset,
4921 * which will then go to sleep and wait for the reset to complete
4922 */
4923 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4924 return FAILED;
a92fa25c
KSS		 4925 if (!res)
4926 return FAILED;
4927
4928 /*
4929 * If we are aborting a timed out op, chances are that the timeout was caused
4930 * by a still not detected EEH error. In such cases, reading a register will
4931 * trigger the EEH recovery infrastructure.
4932 */
4933 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4934
4935 if (!ipr_is_gscsi(res))
1da177e4
LT		 4936 return FAILED;
4937
4938 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4939 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4940 ipr_cmd->done = ipr_scsi_eh_done;
4941 op_found = 1;
4942 break;
4943 }
4944 }
4945
4946 if (!op_found)
4947 return SUCCESS;
4948
4949 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 4950 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 4951 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4952 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4953 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4954 ipr_cmd->u.sdev = scsi_cmd->device;
4955
fb3ed3cb
BK		 4956 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4957 scsi_cmd->cmnd[0]);
1da177e4 4958 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 4959 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 4960
4961 /*
4962 * If the abort task timed out and we sent a bus reset, we will get
4963 * one the following responses to the abort
4964 */
4965 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4966 ioasc = 0;
4967 ipr_trace;
4968 }
4969
4970 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
ee0a90fa 4971 if (!ipr_is_naca_model(res))
4972 res->needs_sync_complete = 1;
1da177e4
LT		 4973
4974 LEAVE;
4975 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4976}
4977
4978/**
4979 * ipr_eh_abort - Abort a single op
4980 * @scsi_cmd: scsi command struct
4981 *
4982 * Return value:
4983 * SUCCESS / FAILED
4984 **/
4985static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4986{
8fa728a2
JG		 4987 unsigned long flags;
4988 int rc;
1da177e4
LT		 4989
4990 ENTER;
1da177e4 4991
8fa728a2
JG		 4992 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4993 rc = ipr_cancel_op(scsi_cmd);
4994 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 4995
4996 LEAVE;
8fa728a2 4997 return rc;
1da177e4
LT		 4998}
4999
5000/**
5001 * ipr_handle_other_interrupt - Handle "other" interrupts
5002 * @ioa_cfg: ioa config struct
634651fa 5003 * @int_reg: interrupt register
1da177e4
LT		 5004 *
5005 * Return value:
5006 * IRQ_NONE / IRQ_HANDLED
5007 **/
634651fa 5008static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5009 u32 int_reg)
1da177e4
LT		 5010{
5011 irqreturn_t rc = IRQ_HANDLED;
7dacb64f
WB		 5012 u32 int_mask_reg;
5013
5014 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5015 int_reg &= ~int_mask_reg;
5016
5017 /* If an interrupt on the adapter did not occur, ignore it.
5018 * Or in the case of SIS 64, check for a stage change interrupt.
5019 */
5020 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5021 if (ioa_cfg->sis64) {
5022 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5023 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5024 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5025
5026 /* clear stage change */
5027 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5028 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5029 list_del(&ioa_cfg->reset_cmd->queue);
5030 del_timer(&ioa_cfg->reset_cmd->timer);
5031 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5032 return IRQ_HANDLED;
5033 }
5034 }
5035
5036 return IRQ_NONE;
5037 }
1da177e4
LT		 5038
5039 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5040 /* Mask the interrupt */
5041 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5042
5043 /* Clear the interrupt */
5044 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5045 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5046
5047 list_del(&ioa_cfg->reset_cmd->queue);
5048 del_timer(&ioa_cfg->reset_cmd->timer);
5049 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f
WB		 5050 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5051 if (ipr_debug && printk_ratelimit())
5052 dev_err(&ioa_cfg->pdev->dev,
5053 "Spurious interrupt detected. 0x%08X\n", int_reg);
5054 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5055 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5056 return IRQ_NONE;
1da177e4
LT		 5057 } else {
5058 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5059 ioa_cfg->ioa_unit_checked = 1;
5060 else
5061 dev_err(&ioa_cfg->pdev->dev,
5062 "Permanent IOA failure. 0x%08X\n", int_reg);
5063
5064 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5065 ioa_cfg->sdt_state = GET_DUMP;
5066
5067 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5068 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5069 }
5070
5071 return rc;
5072}
5073
3feeb89d
WB		 5074/**
5075 * ipr_isr_eh - Interrupt service routine error handler
5076 * @ioa_cfg: ioa config struct
5077 * @msg: message to log
5078 *
5079 * Return value:
5080 * none
5081 **/
5082static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
5083{
5084 ioa_cfg->errors_logged++;
5085 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5086
5087 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5088 ioa_cfg->sdt_state = GET_DUMP;
5089
5090 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5091}
5092
1da177e4
LT		 5093/**
5094 * ipr_isr - Interrupt service routine
5095 * @irq: irq number
5096 * @devp: pointer to ioa config struct
1da177e4
LT		 5097 *
5098 * Return value:
5099 * IRQ_NONE / IRQ_HANDLED
5100 **/
7d12e780 5101static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4
LT		 5102{
5103 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5104 unsigned long lock_flags = 0;
7dacb64f 5105 u32 int_reg = 0;
1da177e4
LT		 5106 u32 ioasc;
5107 u16 cmd_index;
3feeb89d 5108 int num_hrrq = 0;
7dacb64f 5109 int irq_none = 0;
1da177e4
LT		 5110 struct ipr_cmnd *ipr_cmd;
5111 irqreturn_t rc = IRQ_NONE;
5112
5113 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5114
5115 /* If interrupts are disabled, ignore the interrupt */
5116 if (!ioa_cfg->allow_interrupts) {
5117 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5118 return IRQ_NONE;
5119 }
5120
1da177e4
LT		 5121 while (1) {
5122 ipr_cmd = NULL;
5123
5124 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5125 ioa_cfg->toggle_bit) {
5126
5127 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5128 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5129
5130 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
3feeb89d 5131 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
1da177e4
LT		 5132 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5133 return IRQ_HANDLED;
5134 }
5135
5136 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5137
96d21f00 5138 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5139
5140 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5141
5142 list_del(&ipr_cmd->queue);
5143 del_timer(&ipr_cmd->timer);
5144 ipr_cmd->done(ipr_cmd);
5145
5146 rc = IRQ_HANDLED;
5147
5148 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5149 ioa_cfg->hrrq_curr++;
5150 } else {
5151 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5152 ioa_cfg->toggle_bit ^= 1u;
5153 }
5154 }
5155
5156 if (ipr_cmd != NULL) {
5157 /* Clear the PCI interrupt */
a5442ba4 5158 num_hrrq = 0;
3feeb89d 5159 do {
214777ba 5160 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5161 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d
WB		 5162 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5163 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5164
7dacb64f
WB		 5165 } else if (rc == IRQ_NONE && irq_none == 0) {
5166 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5167 irq_none++;
a5442ba4
WB		 5168 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5169 int_reg & IPR_PCII_HRRQ_UPDATED) {
5170 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5171 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5172 return IRQ_HANDLED;
1da177e4
LT		 5173 } else
5174 break;
5175 }
5176
5177 if (unlikely(rc == IRQ_NONE))
634651fa 5178 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4
LT		 5179
5180 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5181 return rc;
5182}
5183
a32c055f
WB		 5184/**
5185 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5186 * @ioa_cfg: ioa config struct
5187 * @ipr_cmd: ipr command struct
5188 *
5189 * Return value:
5190 * 0 on success / -1 on failure
5191 **/
5192static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5193 struct ipr_cmnd *ipr_cmd)
5194{
5195 int i, nseg;
5196 struct scatterlist *sg;
5197 u32 length;
5198 u32 ioadl_flags = 0;
5199 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5200 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5201 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5202
5203 length = scsi_bufflen(scsi_cmd);
5204 if (!length)
5205 return 0;
5206
5207 nseg = scsi_dma_map(scsi_cmd);
5208 if (nseg < 0) {
51f52a47
AB		 5209 if (printk_ratelimit())
5210 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
a32c055f
WB		 5211 return -1;
5212 }
5213
5214 ipr_cmd->dma_use_sg = nseg;
5215
438b0331 5216 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5217 ioarcb->ioadl_len =
5218 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5219
a32c055f
WB		 5220 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5221 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5222 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5223 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5224 ioadl_flags = IPR_IOADL_FLAGS_READ;
5225
5226 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5227 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5228 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5229 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5230 }
5231
5232 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5233 return 0;
5234}
5235
1da177e4
LT		 5236/**
5237 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5238 * @ioa_cfg: ioa config struct
5239 * @ipr_cmd: ipr command struct
5240 *
5241 * Return value:
5242 * 0 on success / -1 on failure
5243 **/
5244static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5245 struct ipr_cmnd *ipr_cmd)
5246{
63015bc9
FT		 5247 int i, nseg;
5248 struct scatterlist *sg;
1da177e4
LT		 5249 u32 length;
5250 u32 ioadl_flags = 0;
5251 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5252 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5253 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5254
63015bc9
FT		 5255 length = scsi_bufflen(scsi_cmd);
5256 if (!length)
1da177e4
LT		 5257 return 0;
5258
63015bc9
FT		 5259 nseg = scsi_dma_map(scsi_cmd);
5260 if (nseg < 0) {
5261 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5262 return -1;
5263 }
51b1c7e1 5264
63015bc9
FT		 5265 ipr_cmd->dma_use_sg = nseg;
5266
5267 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5268 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5269 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5270 ioarcb->data_transfer_length = cpu_to_be32(length);
5271 ioarcb->ioadl_len =
63015bc9
FT		 5272 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5273 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5274 ioadl_flags = IPR_IOADL_FLAGS_READ;
5275 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5276 ioarcb->read_ioadl_len =
5277 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5278 }
1da177e4 5279
a32c055f
WB		 5280 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5281 ioadl = ioarcb->u.add_data.u.ioadl;
5282 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5283 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5284 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5285 }
1da177e4 5286
63015bc9
FT		 5287 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5288 ioadl[i].flags_and_data_len =
5289 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5290 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5291 }
5292
63015bc9
FT		 5293 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5294 return 0;
1da177e4
LT		 5295}
5296
5297/**
5298 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5299 * @scsi_cmd: scsi command struct
5300 *
5301 * Return value:
5302 * task attributes
5303 **/
5304static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5305{
5306 u8 tag[2];
5307 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5308
5309 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5310 switch (tag[0]) {
5311 case MSG_SIMPLE_TAG:
5312 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5313 break;
5314 case MSG_HEAD_TAG:
5315 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5316 break;
5317 case MSG_ORDERED_TAG:
5318 rc = IPR_FLAGS_LO_ORDERED_TASK;
5319 break;
5320 };
5321 }
5322
5323 return rc;
5324}
5325
5326/**
5327 * ipr_erp_done - Process completion of ERP for a device
5328 * @ipr_cmd: ipr command struct
5329 *
5330 * This function copies the sense buffer into the scsi_cmd
5331 * struct and pushes the scsi_done function.
5332 *
5333 * Return value:
5334 * nothing
5335 **/
5336static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5337{
5338 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5339 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5340 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 5341 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5342
5343 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5344 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5345 scmd_printk(KERN_ERR, scsi_cmd,
5346 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5347 } else {
5348 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5349 SCSI_SENSE_BUFFERSIZE);
5350 }
5351
5352 if (res) {
ee0a90fa 5353 if (!ipr_is_naca_model(res))
5354 res->needs_sync_complete = 1;
1da177e4
LT		 5355 res->in_erp = 0;
5356 }
63015bc9 5357 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5358 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5359 scsi_cmd->scsi_done(scsi_cmd);
5360}
5361
5362/**
5363 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5364 * @ipr_cmd: ipr command struct
5365 *
5366 * Return value:
5367 * none
5368 **/
5369static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5370{
51b1c7e1 5371 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5372 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5373 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5374
5375 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5376 ioarcb->data_transfer_length = 0;
1da177e4 5377 ioarcb->read_data_transfer_length = 0;
a32c055f 5378 ioarcb->ioadl_len = 0;
1da177e4 5379 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5380 ioasa->hdr.ioasc = 0;
5381 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5382
5383 if (ipr_cmd->ioa_cfg->sis64)
5384 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5385 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5386 else {
5387 ioarcb->write_ioadl_addr =
5388 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5389 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5390 }
1da177e4
LT		 5391}
5392
5393/**
5394 * ipr_erp_request_sense - Send request sense to a device
5395 * @ipr_cmd: ipr command struct
5396 *
5397 * This function sends a request sense to a device as a result
5398 * of a check condition.
5399 *
5400 * Return value:
5401 * nothing
5402 **/
5403static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5404{
5405 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5406 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5407
5408 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5409 ipr_erp_done(ipr_cmd);
5410 return;
5411 }
5412
5413 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5414
5415 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5416 cmd_pkt->cdb[0] = REQUEST_SENSE;
5417 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5418 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5419 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5420 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5421
a32c055f
WB		 5422 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5423 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5424
5425 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5426 IPR_REQUEST_SENSE_TIMEOUT * 2);
5427}
5428
5429/**
5430 * ipr_erp_cancel_all - Send cancel all to a device
5431 * @ipr_cmd: ipr command struct
5432 *
5433 * This function sends a cancel all to a device to clear the
5434 * queue. If we are running TCQ on the device, QERR is set to 1,
5435 * which means all outstanding ops have been dropped on the floor.
5436 * Cancel all will return them to us.
5437 *
5438 * Return value:
5439 * nothing
5440 **/
5441static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5442{
5443 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5444 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5445 struct ipr_cmd_pkt *cmd_pkt;
5446
5447 res->in_erp = 1;
5448
5449 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5450
5451 if (!scsi_get_tag_type(scsi_cmd->device)) {
5452 ipr_erp_request_sense(ipr_cmd);
5453 return;
5454 }
5455
5456 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5457 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5458 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5459
5460 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5461 IPR_CANCEL_ALL_TIMEOUT);
5462}
5463
5464/**
5465 * ipr_dump_ioasa - Dump contents of IOASA
5466 * @ioa_cfg: ioa config struct
5467 * @ipr_cmd: ipr command struct
fe964d0a 5468 * @res: resource entry struct
1da177e4
LT		 5469 *
5470 * This function is invoked by the interrupt handler when ops
5471 * fail. It will log the IOASA if appropriate. Only called
5472 * for GPDD ops.
5473 *
5474 * Return value:
5475 * none
5476 **/
5477static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5478 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5479{
5480 int i;
5481 u16 data_len;
b0692dd4 5482 u32 ioasc, fd_ioasc;
96d21f00 5483 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5484 __be32 *ioasa_data = (__be32 *)ioasa;
5485 int error_index;
5486
96d21f00
WB		 5487 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5488 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5489
5490 if (0 == ioasc)
5491 return;
5492
5493 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5494 return;
5495
b0692dd4
BK		 5496 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5497 error_index = ipr_get_error(fd_ioasc);
5498 else
5499 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5500
5501 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5502 /* Don't log an error if the IOA already logged one */
96d21f00 5503 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5504 return;
5505
cc9bd5d4
BK		 5506 if (!ipr_is_gscsi(res))
5507 return;
5508
1da177e4
LT		 5509 if (ipr_error_table[error_index].log_ioasa == 0)
5510 return;
5511 }
5512
fe964d0a 5513 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5514
96d21f00
WB		 5515 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5516 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5517 data_len = sizeof(struct ipr_ioasa64);
5518 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5519 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5520
5521 ipr_err("IOASA Dump:\n");
5522
5523 for (i = 0; i < data_len / 4; i += 4) {
5524 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5525 be32_to_cpu(ioasa_data[i]),
5526 be32_to_cpu(ioasa_data[i+1]),
5527 be32_to_cpu(ioasa_data[i+2]),
5528 be32_to_cpu(ioasa_data[i+3]));
5529 }
5530}
5531
5532/**
5533 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5534 * @ioasa: IOASA
5535 * @sense_buf: sense data buffer
5536 *
5537 * Return value:
5538 * none
5539 **/
5540static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5541{
5542 u32 failing_lba;
5543 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5544 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5545 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5546 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5547
5548 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5549
5550 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5551 return;
5552
5553 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5554
5555 if (ipr_is_vset_device(res) &&
5556 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5557 ioasa->u.vset.failing_lba_hi != 0) {
5558 sense_buf[0] = 0x72;
5559 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5560 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5561 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5562
5563 sense_buf[7] = 12;
5564 sense_buf[8] = 0;
5565 sense_buf[9] = 0x0A;
5566 sense_buf[10] = 0x80;
5567
5568 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5569
5570 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5571 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5572 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5573 sense_buf[15] = failing_lba & 0x000000ff;
5574
5575 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5576
5577 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5578 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5579 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5580 sense_buf[19] = failing_lba & 0x000000ff;
5581 } else {
5582 sense_buf[0] = 0x70;
5583 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5584 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5585 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5586
5587 /* Illegal request */
5588 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5589 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5590 sense_buf[7] = 10; /* additional length */
5591
5592 /* IOARCB was in error */
5593 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5594 sense_buf[15] = 0xC0;
5595 else /* Parameter data was invalid */
5596 sense_buf[15] = 0x80;
5597
5598 sense_buf[16] =
5599 ((IPR_FIELD_POINTER_MASK &
96d21f00 5600 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5601 sense_buf[17] =
5602 (IPR_FIELD_POINTER_MASK &
96d21f00 5603 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5604 } else {
5605 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5606 if (ipr_is_vset_device(res))
5607 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5608 else
5609 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5610
5611 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5612 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5613 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5614 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5615 sense_buf[6] = failing_lba & 0x000000ff;
5616 }
5617
5618 sense_buf[7] = 6; /* additional length */
5619 }
5620 }
5621}
5622
ee0a90fa 5623/**
5624 * ipr_get_autosense - Copy autosense data to sense buffer
5625 * @ipr_cmd: ipr command struct
5626 *
5627 * This function copies the autosense buffer to the buffer
5628 * in the scsi_cmd, if there is autosense available.
5629 *
5630 * Return value:
5631 * 1 if autosense was available / 0 if not
5632 **/
5633static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5634{
96d21f00
WB		 5635 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5636 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 5637
96d21f00 5638 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa 5639 return 0;
5640
96d21f00
WB		 5641 if (ipr_cmd->ioa_cfg->sis64)
5642 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5643 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5644 SCSI_SENSE_BUFFERSIZE));
5645 else
5646 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5647 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5648 SCSI_SENSE_BUFFERSIZE));
ee0a90fa 5649 return 1;
5650}
5651
1da177e4
LT		 5652/**
5653 * ipr_erp_start - Process an error response for a SCSI op
5654 * @ioa_cfg: ioa config struct
5655 * @ipr_cmd: ipr command struct
5656 *
5657 * This function determines whether or not to initiate ERP
5658 * on the affected device.
5659 *
5660 * Return value:
5661 * nothing
5662 **/
5663static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5664 struct ipr_cmnd *ipr_cmd)
5665{
5666 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5667 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5668 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 5669 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5670
5671 if (!res) {
5672 ipr_scsi_eh_done(ipr_cmd);
5673 return;
5674 }
5675
8a048994 5676 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 5677 ipr_gen_sense(ipr_cmd);
5678
cc9bd5d4
BK		 5679 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5680
8a048994 5681 switch (masked_ioasc) {
1da177e4 5682 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa 5683 if (ipr_is_naca_model(res))
5684 scsi_cmd->result |= (DID_ABORT << 16);
5685 else
5686 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 5687 break;
5688 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 5689 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 5690 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5691 break;
5692 case IPR_IOASC_HW_SEL_TIMEOUT:
5693 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa 5694 if (!ipr_is_naca_model(res))
5695 res->needs_sync_complete = 1;
1da177e4
LT		 5696 break;
5697 case IPR_IOASC_SYNC_REQUIRED:
5698 if (!res->in_erp)
5699 res->needs_sync_complete = 1;
5700 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5701 break;
5702 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 5703 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 5704 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5705 break;
5706 case IPR_IOASC_BUS_WAS_RESET:
5707 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5708 /*
5709 * Report the bus reset and ask for a retry. The device
5710 * will give CC/UA the next command.
5711 */
5712 if (!res->resetting_device)
5713 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5714 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 5715 if (!ipr_is_naca_model(res))
5716 res->needs_sync_complete = 1;
1da177e4
LT		 5717 break;
5718 case IPR_IOASC_HW_DEV_BUS_STATUS:
5719 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5720 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa 5721 if (!ipr_get_autosense(ipr_cmd)) {
5722 if (!ipr_is_naca_model(res)) {
5723 ipr_erp_cancel_all(ipr_cmd);
5724 return;
5725 }
5726 }
1da177e4 5727 }
ee0a90fa 5728 if (!ipr_is_naca_model(res))
5729 res->needs_sync_complete = 1;
1da177e4
LT		 5730 break;
5731 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5732 break;
5733 default:
5b7304fb
BK		 5734 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5735 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 5736 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 5737 res->needs_sync_complete = 1;
5738 break;
5739 }
5740
63015bc9 5741 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5742 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5743 scsi_cmd->scsi_done(scsi_cmd);
5744}
5745
5746/**
5747 * ipr_scsi_done - mid-layer done function
5748 * @ipr_cmd: ipr command struct
5749 *
5750 * This function is invoked by the interrupt handler for
5751 * ops generated by the SCSI mid-layer
5752 *
5753 * Return value:
5754 * none
5755 **/
5756static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5757{
5758 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5759 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 5760 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4 5761
96d21f00 5762 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 5763
5764 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
63015bc9 5765 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5766 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5767 scsi_cmd->scsi_done(scsi_cmd);
5768 } else
5769 ipr_erp_start(ioa_cfg, ipr_cmd);
5770}
5771
1da177e4
LT		 5772/**
5773 * ipr_queuecommand - Queue a mid-layer request
5774 * @scsi_cmd: scsi command struct
5775 * @done: done function
5776 *
5777 * This function queues a request generated by the mid-layer.
5778 *
5779 * Return value:
5780 * 0 on success
5781 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5782 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5783 **/
f281233d 5784static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
1da177e4
LT		 5785 void (*done) (struct scsi_cmnd *))
5786{
5787 struct ipr_ioa_cfg *ioa_cfg;
5788 struct ipr_resource_entry *res;
5789 struct ipr_ioarcb *ioarcb;
5790 struct ipr_cmnd *ipr_cmd;
5791 int rc = 0;
5792
5793 scsi_cmd->scsi_done = done;
5794 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5795 res = scsi_cmd->device->hostdata;
5796 scsi_cmd->result = (DID_OK << 16);
5797
5798 /*
5799 * We are currently blocking all devices due to a host reset
5800 * We have told the host to stop giving us new requests, but
5801 * ERP ops don't count. FIXME
5802 */
5803 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5804 return SCSI_MLQUEUE_HOST_BUSY;
5805
5806 /*
5807 * FIXME - Create scsi_set_host_offline interface
5808 * and the ioa_is_dead check can be removed
5809 */
5810 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5811 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5812 scsi_cmd->result = (DID_NO_CONNECT << 16);
5813 scsi_cmd->scsi_done(scsi_cmd);
5814 return 0;
5815 }
5816
35a39691 5817 if (ipr_is_gata(res) && res->sata_port)
b27dcfb0 5818 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
35a39691 5819
1da177e4
LT		 5820 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5821 ioarcb = &ipr_cmd->ioarcb;
5822 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5823
5824 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5825 ipr_cmd->scsi_cmd = scsi_cmd;
3e7ebdfa 5826 ioarcb->res_handle = res->res_handle;
1da177e4 5827 ipr_cmd->done = ipr_scsi_done;
3e7ebdfa 5828 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
1da177e4
LT		 5829
5830 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5831 if (scsi_cmd->underflow == 0)
5832 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5833
5834 if (res->needs_sync_complete) {
5835 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5836 res->needs_sync_complete = 0;
5837 }
5838
5839 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
ab6c10b1
WB		 5840 if (ipr_is_gscsi(res))
5841 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
1da177e4
LT		 5842 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5843 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5844 }
5845
5846 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5847 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5848 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5849
a32c055f
WB		 5850 if (likely(rc == 0)) {
5851 if (ioa_cfg->sis64)
5852 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5853 else
5854 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5855 }
1da177e4
LT		 5856
5857 if (likely(rc == 0)) {
5858 mb();
a32c055f 5859 ipr_send_command(ipr_cmd);
1da177e4
LT		 5860 } else {
5861 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5862 return SCSI_MLQUEUE_HOST_BUSY;
5863 }
5864
5865 return 0;
5866}
5867
f281233d
JG		 5868static DEF_SCSI_QCMD(ipr_queuecommand)
5869
35a39691
BK		 5870/**
5871 * ipr_ioctl - IOCTL handler
5872 * @sdev: scsi device struct
5873 * @cmd: IOCTL cmd
5874 * @arg: IOCTL arg
5875 *
5876 * Return value:
5877 * 0 on success / other on failure
5878 **/
bd705f2d 5879static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 5880{
5881 struct ipr_resource_entry *res;
5882
5883 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 5884 if (res && ipr_is_gata(res)) {
5885 if (cmd == HDIO_GET_IDENTITY)
5886 return -ENOTTY;
94be9a58 5887 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 5888 }
35a39691
BK		 5889
5890 return -EINVAL;
5891}
5892
1da177e4
LT		 5893/**
5894 * ipr_info - Get information about the card/driver
5895 * @scsi_host: scsi host struct
5896 *
5897 * Return value:
5898 * pointer to buffer with description string
5899 **/
5900static const char * ipr_ioa_info(struct Scsi_Host *host)
5901{
5902 static char buffer[512];
5903 struct ipr_ioa_cfg *ioa_cfg;
5904 unsigned long lock_flags = 0;
5905
5906 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5907
5908 spin_lock_irqsave(host->host_lock, lock_flags);
5909 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5910 spin_unlock_irqrestore(host->host_lock, lock_flags);
5911
5912 return buffer;
5913}
5914
5915static struct scsi_host_template driver_template = {
5916 .module = THIS_MODULE,
5917 .name = "IPR",
5918 .info = ipr_ioa_info,
35a39691 5919 .ioctl = ipr_ioctl,
1da177e4
LT		 5920 .queuecommand = ipr_queuecommand,
5921 .eh_abort_handler = ipr_eh_abort,
5922 .eh_device_reset_handler = ipr_eh_dev_reset,
5923 .eh_host_reset_handler = ipr_eh_host_reset,
5924 .slave_alloc = ipr_slave_alloc,
5925 .slave_configure = ipr_slave_configure,
5926 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 5927 .target_alloc = ipr_target_alloc,
5928 .target_destroy = ipr_target_destroy,
1da177e4
LT		 5929 .change_queue_depth = ipr_change_queue_depth,
5930 .change_queue_type = ipr_change_queue_type,
5931 .bios_param = ipr_biosparam,
5932 .can_queue = IPR_MAX_COMMANDS,
5933 .this_id = -1,
5934 .sg_tablesize = IPR_MAX_SGLIST,
5935 .max_sectors = IPR_IOA_MAX_SECTORS,
5936 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5937 .use_clustering = ENABLE_CLUSTERING,
5938 .shost_attrs = ipr_ioa_attrs,
5939 .sdev_attrs = ipr_dev_attrs,
5940 .proc_name = IPR_NAME
5941};
5942
35a39691
BK		 5943/**
5944 * ipr_ata_phy_reset - libata phy_reset handler
5945 * @ap: ata port to reset
5946 *
5947 **/
5948static void ipr_ata_phy_reset(struct ata_port *ap)
5949{
5950 unsigned long flags;
5951 struct ipr_sata_port *sata_port = ap->private_data;
5952 struct ipr_resource_entry *res = sata_port->res;
5953 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5954 int rc;
5955
5956 ENTER;
5957 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5958 while(ioa_cfg->in_reset_reload) {
5959 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5960 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5961 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5962 }
5963
5964 if (!ioa_cfg->allow_cmds)
5965 goto out_unlock;
5966
5967 rc = ipr_device_reset(ioa_cfg, res);
5968
5969 if (rc) {
3e4ec344 5970 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5971 goto out_unlock;
5972 }
5973
3e7ebdfa
WB		 5974 ap->link.device[0].class = res->ata_class;
5975 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 5976 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5977
5978out_unlock:
5979 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5980 LEAVE;
5981}
5982
5983/**
5984 * ipr_ata_post_internal - Cleanup after an internal command
5985 * @qc: ATA queued command
5986 *
5987 * Return value:
5988 * none
5989 **/
5990static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5991{
5992 struct ipr_sata_port *sata_port = qc->ap->private_data;
5993 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5994 struct ipr_cmnd *ipr_cmd;
5995 unsigned long flags;
5996
5997 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
73d98ff0
BK		 5998 while(ioa_cfg->in_reset_reload) {
5999 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6000 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6001 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6002 }
6003
35a39691
BK		 6004 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
6005 if (ipr_cmd->qc == qc) {
6006 ipr_device_reset(ioa_cfg, sata_port->res);
6007 break;
6008 }
6009 }
6010 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6011}
6012
35a39691
BK		 6013/**
6014 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6015 * @regs: destination
6016 * @tf: source ATA taskfile
6017 *
6018 * Return value:
6019 * none
6020 **/
6021static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6022 struct ata_taskfile *tf)
6023{
6024 regs->feature = tf->feature;
6025 regs->nsect = tf->nsect;
6026 regs->lbal = tf->lbal;
6027 regs->lbam = tf->lbam;
6028 regs->lbah = tf->lbah;
6029 regs->device = tf->device;
6030 regs->command = tf->command;
6031 regs->hob_feature = tf->hob_feature;
6032 regs->hob_nsect = tf->hob_nsect;
6033 regs->hob_lbal = tf->hob_lbal;
6034 regs->hob_lbam = tf->hob_lbam;
6035 regs->hob_lbah = tf->hob_lbah;
6036 regs->ctl = tf->ctl;
6037}
6038
6039/**
6040 * ipr_sata_done - done function for SATA commands
6041 * @ipr_cmd: ipr command struct
6042 *
6043 * This function is invoked by the interrupt handler for
6044 * ops generated by the SCSI mid-layer to SATA devices
6045 *
6046 * Return value:
6047 * none
6048 **/
6049static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6050{
6051 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6052 struct ata_queued_cmd *qc = ipr_cmd->qc;
6053 struct ipr_sata_port *sata_port = qc->ap->private_data;
6054 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6055 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6056
96d21f00
WB		 6057 if (ipr_cmd->ioa_cfg->sis64)
6058 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6059 sizeof(struct ipr_ioasa_gata));
6060 else
6061 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6062 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6063 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6064
96d21f00 6065 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6066 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6067
6068 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6069 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6070 else
96d21f00 6071 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
35a39691
BK		 6072 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6073 ata_qc_complete(qc);
6074}
6075
a32c055f
WB		 6076/**
6077 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6078 * @ipr_cmd: ipr command struct
6079 * @qc: ATA queued command
6080 *
6081 **/
6082static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6083 struct ata_queued_cmd *qc)
6084{
6085 u32 ioadl_flags = 0;
6086 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6087 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6088 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6089 int len = qc->nbytes;
6090 struct scatterlist *sg;
6091 unsigned int si;
6092 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6093
6094 if (len == 0)
6095 return;
6096
6097 if (qc->dma_dir == DMA_TO_DEVICE) {
6098 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6099 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6100 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6101 ioadl_flags = IPR_IOADL_FLAGS_READ;
6102
6103 ioarcb->data_transfer_length = cpu_to_be32(len);
6104 ioarcb->ioadl_len =
6105 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6106 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6107 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6108
6109 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6110 ioadl64->flags = cpu_to_be32(ioadl_flags);
6111 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6112 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6113
6114 last_ioadl64 = ioadl64;
6115 ioadl64++;
6116 }
6117
6118 if (likely(last_ioadl64))
6119 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6120}
6121
35a39691
BK		 6122/**
6123 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6124 * @ipr_cmd: ipr command struct
6125 * @qc: ATA queued command
6126 *
6127 **/
6128static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6129 struct ata_queued_cmd *qc)
6130{
6131 u32 ioadl_flags = 0;
6132 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6133 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6134 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6135 int len = qc->nbytes;
35a39691 6136 struct scatterlist *sg;
ff2aeb1e 6137 unsigned int si;
35a39691
BK		 6138
6139 if (len == 0)
6140 return;
6141
6142 if (qc->dma_dir == DMA_TO_DEVICE) {
6143 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6144 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6145 ioarcb->data_transfer_length = cpu_to_be32(len);
6146 ioarcb->ioadl_len =
35a39691
BK		 6147 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6148 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6149 ioadl_flags = IPR_IOADL_FLAGS_READ;
6150 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6151 ioarcb->read_ioadl_len =
6152 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6153 }
6154
ff2aeb1e 6155 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6156 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6157 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6158
6159 last_ioadl = ioadl;
6160 ioadl++;
35a39691 6161 }
3be6cbd7
JG		 6162
6163 if (likely(last_ioadl))
6164 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6165}
6166
6167/**
6168 * ipr_qc_issue - Issue a SATA qc to a device
6169 * @qc: queued command
6170 *
6171 * Return value:
6172 * 0 if success
6173 **/
6174static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6175{
6176 struct ata_port *ap = qc->ap;
6177 struct ipr_sata_port *sata_port = ap->private_data;
6178 struct ipr_resource_entry *res = sata_port->res;
6179 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6180 struct ipr_cmnd *ipr_cmd;
6181 struct ipr_ioarcb *ioarcb;
6182 struct ipr_ioarcb_ata_regs *regs;
6183
6184 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
0feeed82 6185 return AC_ERR_SYSTEM;
35a39691
BK		 6186
6187 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6188 ioarcb = &ipr_cmd->ioarcb;
35a39691 6189
a32c055f
WB		 6190 if (ioa_cfg->sis64) {
6191 regs = &ipr_cmd->i.ata_ioadl.regs;
6192 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6193 } else
6194 regs = &ioarcb->u.add_data.u.regs;
6195
6196 memset(regs, 0, sizeof(*regs));
6197 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691
BK		 6198
6199 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6200 ipr_cmd->qc = qc;
6201 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6202 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6203 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6204 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6205 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6206 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6207
a32c055f
WB		 6208 if (ioa_cfg->sis64)
6209 ipr_build_ata_ioadl64(ipr_cmd, qc);
6210 else
6211 ipr_build_ata_ioadl(ipr_cmd, qc);
6212
35a39691
BK		 6213 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6214 ipr_copy_sata_tf(regs, &qc->tf);
6215 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6216 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6217
6218 switch (qc->tf.protocol) {
6219 case ATA_PROT_NODATA:
6220 case ATA_PROT_PIO:
6221 break;
6222
6223 case ATA_PROT_DMA:
6224 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6225 break;
6226
0dc36888
TH		 6227 case ATAPI_PROT_PIO:
6228 case ATAPI_PROT_NODATA:
35a39691
BK		 6229 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6230 break;
6231
0dc36888 6232 case ATAPI_PROT_DMA:
35a39691
BK		 6233 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6234 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6235 break;
6236
6237 default:
6238 WARN_ON(1);
0feeed82 6239 return AC_ERR_INVALID;
35a39691
BK		 6240 }
6241
6242 mb();
a32c055f
WB		 6243
6244 ipr_send_command(ipr_cmd);
6245
35a39691
BK		 6246 return 0;
6247}
6248
4c9bf4e7
TH		 6249/**
6250 * ipr_qc_fill_rtf - Read result TF
6251 * @qc: ATA queued command
6252 *
6253 * Return value:
6254 * true
6255 **/
6256static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6257{
6258 struct ipr_sata_port *sata_port = qc->ap->private_data;
6259 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6260 struct ata_taskfile *tf = &qc->result_tf;
6261
6262 tf->feature = g->error;
6263 tf->nsect = g->nsect;
6264 tf->lbal = g->lbal;
6265 tf->lbam = g->lbam;
6266 tf->lbah = g->lbah;
6267 tf->device = g->device;
6268 tf->command = g->status;
6269 tf->hob_nsect = g->hob_nsect;
6270 tf->hob_lbal = g->hob_lbal;
6271 tf->hob_lbam = g->hob_lbam;
6272 tf->hob_lbah = g->hob_lbah;
6273 tf->ctl = g->alt_status;
6274
6275 return true;
6276}
6277
35a39691 6278static struct ata_port_operations ipr_sata_ops = {
35a39691 6279 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6280 .hardreset = ipr_sata_reset,
35a39691 6281 .post_internal_cmd = ipr_ata_post_internal,
35a39691
BK		 6282 .qc_prep = ata_noop_qc_prep,
6283 .qc_issue = ipr_qc_issue,
4c9bf4e7 6284 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6285 .port_start = ata_sas_port_start,
6286 .port_stop = ata_sas_port_stop
6287};
6288
6289static struct ata_port_info sata_port_info = {
9cbe056f 6290 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
0f2e0330
SS		 6291 .pio_mask = ATA_PIO4_ONLY,
6292 .mwdma_mask = ATA_MWDMA2,
6293 .udma_mask = ATA_UDMA6,
35a39691
BK		 6294 .port_ops = &ipr_sata_ops
6295};
6296
1da177e4
LT		 6297#ifdef CONFIG_PPC_PSERIES
6298static const u16 ipr_blocked_processors[] = {
6299 PV_NORTHSTAR,
6300 PV_PULSAR,
6301 PV_POWER4,
6302 PV_ICESTAR,
6303 PV_SSTAR,
6304 PV_POWER4p,
6305 PV_630,
6306 PV_630p
6307};
6308
6309/**
6310 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6311 * @ioa_cfg: ioa cfg struct
6312 *
6313 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6314 * certain pSeries hardware. This function determines if the given
6315 * adapter is in one of these confgurations or not.
6316 *
6317 * Return value:
6318 * 1 if adapter is not supported / 0 if adapter is supported
6319 **/
6320static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6321{
1da177e4
LT		 6322 int i;
6323
44c10138
AK		 6324 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6325 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6326 if (__is_processor(ipr_blocked_processors[i]))
6327 return 1;
1da177e4
LT		 6328 }
6329 }
6330 return 0;
6331}
6332#else
6333#define ipr_invalid_adapter(ioa_cfg) 0
6334#endif
6335
6336/**
6337 * ipr_ioa_bringdown_done - IOA bring down completion.
6338 * @ipr_cmd: ipr command struct
6339 *
6340 * This function processes the completion of an adapter bring down.
6341 * It wakes any reset sleepers.
6342 *
6343 * Return value:
6344 * IPR_RC_JOB_RETURN
6345 **/
6346static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6347{
6348 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6349
6350 ENTER;
6351 ioa_cfg->in_reset_reload = 0;
6352 ioa_cfg->reset_retries = 0;
6353 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6354 wake_up_all(&ioa_cfg->reset_wait_q);
6355
6356 spin_unlock_irq(ioa_cfg->host->host_lock);
6357 scsi_unblock_requests(ioa_cfg->host);
6358 spin_lock_irq(ioa_cfg->host->host_lock);
6359 LEAVE;
6360
6361 return IPR_RC_JOB_RETURN;
6362}
6363
6364/**
6365 * ipr_ioa_reset_done - IOA reset completion.
6366 * @ipr_cmd: ipr command struct
6367 *
6368 * This function processes the completion of an adapter reset.
6369 * It schedules any necessary mid-layer add/removes and
6370 * wakes any reset sleepers.
6371 *
6372 * Return value:
6373 * IPR_RC_JOB_RETURN
6374 **/
6375static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6376{
6377 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6378 struct ipr_resource_entry *res;
6379 struct ipr_hostrcb *hostrcb, *temp;
6380 int i = 0;
6381
6382 ENTER;
6383 ioa_cfg->in_reset_reload = 0;
6384 ioa_cfg->allow_cmds = 1;
6385 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6386 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6387
6388 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6389 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6390 ipr_trace;
6391 break;
6392 }
6393 }
6394 schedule_work(&ioa_cfg->work_q);
6395
6396 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6397 list_del(&hostrcb->queue);
6398 if (i++ < IPR_NUM_LOG_HCAMS)
6399 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6400 else
6401 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6402 }
6403
6bb04170 6404 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6405 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6406
6407 ioa_cfg->reset_retries = 0;
6408 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6409 wake_up_all(&ioa_cfg->reset_wait_q);
6410
30237853 6411 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6412 scsi_unblock_requests(ioa_cfg->host);
30237853 6413 spin_lock(ioa_cfg->host->host_lock);
1da177e4
LT		 6414
6415 if (!ioa_cfg->allow_cmds)
6416 scsi_block_requests(ioa_cfg->host);
6417
6418 LEAVE;
6419 return IPR_RC_JOB_RETURN;
6420}
6421
6422/**
6423 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6424 * @supported_dev: supported device struct
6425 * @vpids: vendor product id struct
6426 *
6427 * Return value:
6428 * none
6429 **/
6430static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6431 struct ipr_std_inq_vpids *vpids)
6432{
6433 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6434 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6435 supported_dev->num_records = 1;
6436 supported_dev->data_length =
6437 cpu_to_be16(sizeof(struct ipr_supported_device));
6438 supported_dev->reserved = 0;
6439}
6440
6441/**
6442 * ipr_set_supported_devs - Send Set Supported Devices for a device
6443 * @ipr_cmd: ipr command struct
6444 *
a32c055f 6445 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6446 *
6447 * Return value:
6448 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6449 **/
6450static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6451{
6452 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6453 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6454 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6455 struct ipr_resource_entry *res = ipr_cmd->u.res;
6456
6457 ipr_cmd->job_step = ipr_ioa_reset_done;
6458
6459 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6460 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6461 continue;
6462
6463 ipr_cmd->u.res = res;
3e7ebdfa 6464 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6465
6466 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6467 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6468 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6469
6470 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6471 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6472 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6473 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6474
a32c055f
WB		 6475 ipr_init_ioadl(ipr_cmd,
6476 ioa_cfg->vpd_cbs_dma +
6477 offsetof(struct ipr_misc_cbs, supp_dev),
6478 sizeof(struct ipr_supported_device),
6479 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6480
6481 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6482 IPR_SET_SUP_DEVICE_TIMEOUT);
6483
3e7ebdfa
WB		 6484 if (!ioa_cfg->sis64)
6485 ipr_cmd->job_step = ipr_set_supported_devs;
1da177e4
LT		 6486 return IPR_RC_JOB_RETURN;
6487 }
6488
6489 return IPR_RC_JOB_CONTINUE;
6490}
6491
6492/**
6493 * ipr_get_mode_page - Locate specified mode page
6494 * @mode_pages: mode page buffer
6495 * @page_code: page code to find
6496 * @len: minimum required length for mode page
6497 *
6498 * Return value:
6499 * pointer to mode page / NULL on failure
6500 **/
6501static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6502 u32 page_code, u32 len)
6503{
6504 struct ipr_mode_page_hdr *mode_hdr;
6505 u32 page_length;
6506 u32 length;
6507
6508 if (!mode_pages || (mode_pages->hdr.length == 0))
6509 return NULL;
6510
6511 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6512 mode_hdr = (struct ipr_mode_page_hdr *)
6513 (mode_pages->data + mode_pages->hdr.block_desc_len);
6514
6515 while (length) {
6516 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6517 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6518 return mode_hdr;
6519 break;
6520 } else {
6521 page_length = (sizeof(struct ipr_mode_page_hdr) +
6522 mode_hdr->page_length);
6523 length -= page_length;
6524 mode_hdr = (struct ipr_mode_page_hdr *)
6525 ((unsigned long)mode_hdr + page_length);
6526 }
6527 }
6528 return NULL;
6529}
6530
6531/**
6532 * ipr_check_term_power - Check for term power errors
6533 * @ioa_cfg: ioa config struct
6534 * @mode_pages: IOAFP mode pages buffer
6535 *
6536 * Check the IOAFP's mode page 28 for term power errors
6537 *
6538 * Return value:
6539 * nothing
6540 **/
6541static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6542 struct ipr_mode_pages *mode_pages)
6543{
6544 int i;
6545 int entry_length;
6546 struct ipr_dev_bus_entry *bus;
6547 struct ipr_mode_page28 *mode_page;
6548
6549 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6550 sizeof(struct ipr_mode_page28));
6551
6552 entry_length = mode_page->entry_length;
6553
6554 bus = mode_page->bus;
6555
6556 for (i = 0; i < mode_page->num_entries; i++) {
6557 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6558 dev_err(&ioa_cfg->pdev->dev,
6559 "Term power is absent on scsi bus %d\n",
6560 bus->res_addr.bus);
6561 }
6562
6563 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6564 }
6565}
6566
6567/**
6568 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6569 * @ioa_cfg: ioa config struct
6570 *
6571 * Looks through the config table checking for SES devices. If
6572 * the SES device is in the SES table indicating a maximum SCSI
6573 * bus speed, the speed is limited for the bus.
6574 *
6575 * Return value:
6576 * none
6577 **/
6578static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6579{
6580 u32 max_xfer_rate;
6581 int i;
6582
6583 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6584 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6585 ioa_cfg->bus_attr[i].bus_width);
6586
6587 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6588 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6589 }
6590}
6591
6592/**
6593 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6594 * @ioa_cfg: ioa config struct
6595 * @mode_pages: mode page 28 buffer
6596 *
6597 * Updates mode page 28 based on driver configuration
6598 *
6599 * Return value:
6600 * none
6601 **/
6602static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6603 struct ipr_mode_pages *mode_pages)
6604{
6605 int i, entry_length;
6606 struct ipr_dev_bus_entry *bus;
6607 struct ipr_bus_attributes *bus_attr;
6608 struct ipr_mode_page28 *mode_page;
6609
6610 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6611 sizeof(struct ipr_mode_page28));
6612
6613 entry_length = mode_page->entry_length;
6614
6615 /* Loop for each device bus entry */
6616 for (i = 0, bus = mode_page->bus;
6617 i < mode_page->num_entries;
6618 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6619 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6620 dev_err(&ioa_cfg->pdev->dev,
6621 "Invalid resource address reported: 0x%08X\n",
6622 IPR_GET_PHYS_LOC(bus->res_addr));
6623 continue;
6624 }
6625
6626 bus_attr = &ioa_cfg->bus_attr[i];
6627 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6628 bus->bus_width = bus_attr->bus_width;
6629 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6630 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6631 if (bus_attr->qas_enabled)
6632 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6633 else
6634 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6635 }
6636}
6637
6638/**
6639 * ipr_build_mode_select - Build a mode select command
6640 * @ipr_cmd: ipr command struct
6641 * @res_handle: resource handle to send command to
6642 * @parm: Byte 2 of Mode Sense command
6643 * @dma_addr: DMA buffer address
6644 * @xfer_len: data transfer length
6645 *
6646 * Return value:
6647 * none
6648 **/
6649static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 6650 __be32 res_handle, u8 parm,
6651 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6652{
1da177e4
LT		 6653 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6654
6655 ioarcb->res_handle = res_handle;
6656 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6657 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6658 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6659 ioarcb->cmd_pkt.cdb[1] = parm;
6660 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6661
a32c055f 6662 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6663}
6664
6665/**
6666 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6667 * @ipr_cmd: ipr command struct
6668 *
6669 * This function sets up the SCSI bus attributes and sends
6670 * a Mode Select for Page 28 to activate them.
6671 *
6672 * Return value:
6673 * IPR_RC_JOB_RETURN
6674 **/
6675static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6676{
6677 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6678 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6679 int length;
6680
6681 ENTER;
4733804c
BK		 6682 ipr_scsi_bus_speed_limit(ioa_cfg);
6683 ipr_check_term_power(ioa_cfg, mode_pages);
6684 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6685 length = mode_pages->hdr.length + 1;
6686 mode_pages->hdr.length = 0;
1da177e4
LT		 6687
6688 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6689 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6690 length);
6691
f72919ec
WB		 6692 ipr_cmd->job_step = ipr_set_supported_devs;
6693 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6694 struct ipr_resource_entry, queue);
1da177e4
LT		 6695 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6696
6697 LEAVE;
6698 return IPR_RC_JOB_RETURN;
6699}
6700
6701/**
6702 * ipr_build_mode_sense - Builds a mode sense command
6703 * @ipr_cmd: ipr command struct
6704 * @res: resource entry struct
6705 * @parm: Byte 2 of mode sense command
6706 * @dma_addr: DMA address of mode sense buffer
6707 * @xfer_len: Size of DMA buffer
6708 *
6709 * Return value:
6710 * none
6711 **/
6712static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6713 __be32 res_handle,
a32c055f 6714 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6715{
1da177e4
LT		 6716 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6717
6718 ioarcb->res_handle = res_handle;
6719 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6720 ioarcb->cmd_pkt.cdb[2] = parm;
6721 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6722 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6723
a32c055f 6724 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6725}
6726
dfed823e 6727/**
6728 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6729 * @ipr_cmd: ipr command struct
6730 *
6731 * This function handles the failure of an IOA bringup command.
6732 *
6733 * Return value:
6734 * IPR_RC_JOB_RETURN
6735 **/
6736static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6737{
6738 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6739 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 6740
6741 dev_err(&ioa_cfg->pdev->dev,
6742 "0x%02X failed with IOASC: 0x%08X\n",
6743 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6744
6745 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6746 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6747 return IPR_RC_JOB_RETURN;
6748}
6749
6750/**
6751 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6752 * @ipr_cmd: ipr command struct
6753 *
6754 * This function handles the failure of a Mode Sense to the IOAFP.
6755 * Some adapters do not handle all mode pages.
6756 *
6757 * Return value:
6758 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6759 **/
6760static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6761{
f72919ec 6762 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6763 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 6764
6765 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 6766 ipr_cmd->job_step = ipr_set_supported_devs;
6767 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6768 struct ipr_resource_entry, queue);
dfed823e 6769 return IPR_RC_JOB_CONTINUE;
6770 }
6771
6772 return ipr_reset_cmd_failed(ipr_cmd);
6773}
6774
1da177e4
LT		 6775/**
6776 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6777 * @ipr_cmd: ipr command struct
6778 *
6779 * This function send a Page 28 mode sense to the IOA to
6780 * retrieve SCSI bus attributes.
6781 *
6782 * Return value:
6783 * IPR_RC_JOB_RETURN
6784 **/
6785static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6786{
6787 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6788
6789 ENTER;
6790 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6791 0x28, ioa_cfg->vpd_cbs_dma +
6792 offsetof(struct ipr_misc_cbs, mode_pages),
6793 sizeof(struct ipr_mode_pages));
6794
6795 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 6796 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 6797
6798 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6799
6800 LEAVE;
6801 return IPR_RC_JOB_RETURN;
6802}
6803
ac09c349
BK		 6804/**
6805 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6806 * @ipr_cmd: ipr command struct
6807 *
6808 * This function enables dual IOA RAID support if possible.
6809 *
6810 * Return value:
6811 * IPR_RC_JOB_RETURN
6812 **/
6813static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6814{
6815 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6816 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6817 struct ipr_mode_page24 *mode_page;
6818 int length;
6819
6820 ENTER;
6821 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6822 sizeof(struct ipr_mode_page24));
6823
6824 if (mode_page)
6825 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6826
6827 length = mode_pages->hdr.length + 1;
6828 mode_pages->hdr.length = 0;
6829
6830 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6831 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6832 length);
6833
6834 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6835 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6836
6837 LEAVE;
6838 return IPR_RC_JOB_RETURN;
6839}
6840
6841/**
6842 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6843 * @ipr_cmd: ipr command struct
6844 *
6845 * This function handles the failure of a Mode Sense to the IOAFP.
6846 * Some adapters do not handle all mode pages.
6847 *
6848 * Return value:
6849 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6850 **/
6851static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6852{
96d21f00 6853 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 6854
6855 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6856 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6857 return IPR_RC_JOB_CONTINUE;
6858 }
6859
6860 return ipr_reset_cmd_failed(ipr_cmd);
6861}
6862
6863/**
6864 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6865 * @ipr_cmd: ipr command struct
6866 *
6867 * This function send a mode sense to the IOA to retrieve
6868 * the IOA Advanced Function Control mode page.
6869 *
6870 * Return value:
6871 * IPR_RC_JOB_RETURN
6872 **/
6873static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6874{
6875 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6876
6877 ENTER;
6878 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6879 0x24, ioa_cfg->vpd_cbs_dma +
6880 offsetof(struct ipr_misc_cbs, mode_pages),
6881 sizeof(struct ipr_mode_pages));
6882
6883 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6884 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6885
6886 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6887
6888 LEAVE;
6889 return IPR_RC_JOB_RETURN;
6890}
6891
1da177e4
LT		 6892/**
6893 * ipr_init_res_table - Initialize the resource table
6894 * @ipr_cmd: ipr command struct
6895 *
6896 * This function looks through the existing resource table, comparing
6897 * it with the config table. This function will take care of old/new
6898 * devices and schedule adding/removing them from the mid-layer
6899 * as appropriate.
6900 *
6901 * Return value:
6902 * IPR_RC_JOB_CONTINUE
6903 **/
6904static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6905{
6906 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6907 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 6908 struct ipr_config_table_entry_wrapper cfgtew;
6909 int entries, found, flag, i;
1da177e4
LT		 6910 LIST_HEAD(old_res);
6911
6912 ENTER;
3e7ebdfa
WB		 6913 if (ioa_cfg->sis64)
6914 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6915 else
6916 flag = ioa_cfg->u.cfg_table->hdr.flags;
6917
6918 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 6919 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6920
6921 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6922 list_move_tail(&res->queue, &old_res);
6923
3e7ebdfa 6924 if (ioa_cfg->sis64)
438b0331 6925 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 6926 else
6927 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6928
6929 for (i = 0; i < entries; i++) {
6930 if (ioa_cfg->sis64)
6931 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6932 else
6933 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 6934 found = 0;
6935
6936 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 6937 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 6938 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6939 found = 1;
6940 break;
6941 }
6942 }
6943
6944 if (!found) {
6945 if (list_empty(&ioa_cfg->free_res_q)) {
6946 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6947 break;
6948 }
6949
6950 found = 1;
6951 res = list_entry(ioa_cfg->free_res_q.next,
6952 struct ipr_resource_entry, queue);
6953 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 6954 ipr_init_res_entry(res, &cfgtew);
1da177e4 6955 res->add_to_ml = 1;
56115598
WB		 6956 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6957 res->sdev->allow_restart = 1;
1da177e4
LT		 6958
6959 if (found)
3e7ebdfa 6960 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 6961 }
6962
6963 list_for_each_entry_safe(res, temp, &old_res, queue) {
6964 if (res->sdev) {
6965 res->del_from_ml = 1;
3e7ebdfa 6966 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 6967 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 6968 }
6969 }
6970
3e7ebdfa
WB		 6971 list_for_each_entry_safe(res, temp, &old_res, queue) {
6972 ipr_clear_res_target(res);
6973 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6974 }
6975
ac09c349
BK		 6976 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6977 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6978 else
6979 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 6980
6981 LEAVE;
6982 return IPR_RC_JOB_CONTINUE;
6983}
6984
6985/**
6986 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6987 * @ipr_cmd: ipr command struct
6988 *
6989 * This function sends a Query IOA Configuration command
6990 * to the adapter to retrieve the IOA configuration table.
6991 *
6992 * Return value:
6993 * IPR_RC_JOB_RETURN
6994 **/
6995static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6996{
6997 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6998 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 6999 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7000 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7001
7002 ENTER;
ac09c349
BK		 7003 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7004 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7005 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7006 ucode_vpd->major_release, ucode_vpd->card_type,
7007 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7008 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7009 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7010
7011 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7012 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7013 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7014 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7015
3e7ebdfa 7016 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7017 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7018
7019 ipr_cmd->job_step = ipr_init_res_table;
7020
7021 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7022
7023 LEAVE;
7024 return IPR_RC_JOB_RETURN;
7025}
7026
7027/**
7028 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7029 * @ipr_cmd: ipr command struct
7030 *
7031 * This utility function sends an inquiry to the adapter.
7032 *
7033 * Return value:
7034 * none
7035 **/
7036static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7037 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7038{
7039 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7040
7041 ENTER;
7042 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7043 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7044
7045 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7046 ioarcb->cmd_pkt.cdb[1] = flags;
7047 ioarcb->cmd_pkt.cdb[2] = page;
7048 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7049
a32c055f 7050 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7051
7052 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7053 LEAVE;
7054}
7055
62275040 7056/**
7057 * ipr_inquiry_page_supported - Is the given inquiry page supported
7058 * @page0: inquiry page 0 buffer
7059 * @page: page code.
7060 *
7061 * This function determines if the specified inquiry page is supported.
7062 *
7063 * Return value:
7064 * 1 if page is supported / 0 if not
7065 **/
7066static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7067{
7068 int i;
7069
7070 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7071 if (page0->page[i] == page)
7072 return 1;
7073
7074 return 0;
7075}
7076
ac09c349
BK		 7077/**
7078 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7079 * @ipr_cmd: ipr command struct
7080 *
7081 * This function sends a Page 0xD0 inquiry to the adapter
7082 * to retrieve adapter capabilities.
7083 *
7084 * Return value:
7085 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7086 **/
7087static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7088{
7089 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7090 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7091 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7092
7093 ENTER;
7094 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7095 memset(cap, 0, sizeof(*cap));
7096
7097 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7098 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7099 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7100 sizeof(struct ipr_inquiry_cap));
7101 return IPR_RC_JOB_RETURN;
7102 }
7103
7104 LEAVE;
7105 return IPR_RC_JOB_CONTINUE;
7106}
7107
1da177e4
LT		 7108/**
7109 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7110 * @ipr_cmd: ipr command struct
7111 *
7112 * This function sends a Page 3 inquiry to the adapter
7113 * to retrieve software VPD information.
7114 *
7115 * Return value:
7116 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7117 **/
7118static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040 7119{
7120 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040 7121
7122 ENTER;
7123
ac09c349 7124 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040 7125
7126 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7127 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7128 sizeof(struct ipr_inquiry_page3));
7129
7130 LEAVE;
7131 return IPR_RC_JOB_RETURN;
7132}
7133
7134/**
7135 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7136 * @ipr_cmd: ipr command struct
7137 *
7138 * This function sends a Page 0 inquiry to the adapter
7139 * to retrieve supported inquiry pages.
7140 *
7141 * Return value:
7142 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7143 **/
7144static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7145{
7146 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7147 char type[5];
7148
7149 ENTER;
7150
7151 /* Grab the type out of the VPD and store it away */
7152 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7153 type[4] = '\0';
7154 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7155
62275040 7156 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7157
62275040 7158 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7159 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7160 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7161
7162 LEAVE;
7163 return IPR_RC_JOB_RETURN;
7164}
7165
7166/**
7167 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7168 * @ipr_cmd: ipr command struct
7169 *
7170 * This function sends a standard inquiry to the adapter.
7171 *
7172 * Return value:
7173 * IPR_RC_JOB_RETURN
7174 **/
7175static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7176{
7177 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7178
7179 ENTER;
62275040 7180 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7181
7182 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7183 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7184 sizeof(struct ipr_ioa_vpd));
7185
7186 LEAVE;
7187 return IPR_RC_JOB_RETURN;
7188}
7189
7190/**
214777ba 7191 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7192 * @ipr_cmd: ipr command struct
7193 *
7194 * This function send an Identify Host Request Response Queue
7195 * command to establish the HRRQ with the adapter.
7196 *
7197 * Return value:
7198 * IPR_RC_JOB_RETURN
7199 **/
214777ba 7200static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7201{
7202 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7203 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7204
7205 ENTER;
7206 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7207
7208 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7209 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7210
7211 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
214777ba
WB		 7212 if (ioa_cfg->sis64)
7213 ioarcb->cmd_pkt.cdb[1] = 0x1;
1da177e4 7214 ioarcb->cmd_pkt.cdb[2] =
214777ba 7215 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
1da177e4 7216 ioarcb->cmd_pkt.cdb[3] =
214777ba 7217 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
1da177e4 7218 ioarcb->cmd_pkt.cdb[4] =
214777ba 7219 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
1da177e4 7220 ioarcb->cmd_pkt.cdb[5] =
214777ba 7221 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
1da177e4
LT		 7222 ioarcb->cmd_pkt.cdb[7] =
7223 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7224 ioarcb->cmd_pkt.cdb[8] =
7225 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7226
214777ba
WB		 7227 if (ioa_cfg->sis64) {
7228 ioarcb->cmd_pkt.cdb[10] =
7229 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7230 ioarcb->cmd_pkt.cdb[11] =
7231 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7232 ioarcb->cmd_pkt.cdb[12] =
7233 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7234 ioarcb->cmd_pkt.cdb[13] =
7235 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7236 }
7237
1da177e4
LT		 7238 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7239
7240 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7241
7242 LEAVE;
7243 return IPR_RC_JOB_RETURN;
7244}
7245
7246/**
7247 * ipr_reset_timer_done - Adapter reset timer function
7248 * @ipr_cmd: ipr command struct
7249 *
7250 * Description: This function is used in adapter reset processing
7251 * for timing events. If the reset_cmd pointer in the IOA
7252 * config struct is not this adapter's we are doing nested
7253 * resets and fail_all_ops will take care of freeing the
7254 * command block.
7255 *
7256 * Return value:
7257 * none
7258 **/
7259static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7260{
7261 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7262 unsigned long lock_flags = 0;
7263
7264 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7265
7266 if (ioa_cfg->reset_cmd == ipr_cmd) {
7267 list_del(&ipr_cmd->queue);
7268 ipr_cmd->done(ipr_cmd);
7269 }
7270
7271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7272}
7273
7274/**
7275 * ipr_reset_start_timer - Start a timer for adapter reset job
7276 * @ipr_cmd: ipr command struct
7277 * @timeout: timeout value
7278 *
7279 * Description: This function is used in adapter reset processing
7280 * for timing events. If the reset_cmd pointer in the IOA
7281 * config struct is not this adapter's we are doing nested
7282 * resets and fail_all_ops will take care of freeing the
7283 * command block.
7284 *
7285 * Return value:
7286 * none
7287 **/
7288static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7289 unsigned long timeout)
7290{
7291 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7292 ipr_cmd->done = ipr_reset_ioa_job;
7293
7294 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7295 ipr_cmd->timer.expires = jiffies + timeout;
7296 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7297 add_timer(&ipr_cmd->timer);
7298}
7299
7300/**
7301 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7302 * @ioa_cfg: ioa cfg struct
7303 *
7304 * Return value:
7305 * nothing
7306 **/
7307static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7308{
7309 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7310
7311 /* Initialize Host RRQ pointers */
7312 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7313 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7314 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7315 ioa_cfg->toggle_bit = 1;
7316
7317 /* Zero out config table */
3e7ebdfa 7318 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7319}
7320
214777ba
WB		 7321/**
7322 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7323 * @ipr_cmd: ipr command struct
7324 *
7325 * Return value:
7326 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7327 **/
7328static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7329{
7330 unsigned long stage, stage_time;
7331 u32 feedback;
7332 volatile u32 int_reg;
7333 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7334 u64 maskval = 0;
7335
7336 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7337 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7338 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7339
7340 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7341
7342 /* sanity check the stage_time value */
438b0331
WB		 7343 if (stage_time == 0)
7344 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7345 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7346 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7347 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7348 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7349
7350 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7351 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7352 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7353 stage_time = ioa_cfg->transop_timeout;
7354 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7355 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7356 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7357 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7358 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7359 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7360 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7361 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7362 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7363 return IPR_RC_JOB_CONTINUE;
7364 }
214777ba
WB		 7365 }
7366
7367 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7368 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7369 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7370 ipr_cmd->done = ipr_reset_ioa_job;
7371 add_timer(&ipr_cmd->timer);
7372 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7373
7374 return IPR_RC_JOB_RETURN;
7375}
7376
1da177e4
LT		 7377/**
7378 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7379 * @ipr_cmd: ipr command struct
7380 *
7381 * This function reinitializes some control blocks and
7382 * enables destructive diagnostics on the adapter.
7383 *
7384 * Return value:
7385 * IPR_RC_JOB_RETURN
7386 **/
7387static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7388{
7389 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7390 volatile u32 int_reg;
7be96900 7391 volatile u64 maskval;
1da177e4
LT		 7392
7393 ENTER;
214777ba 7394 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7395 ipr_init_ioa_mem(ioa_cfg);
7396
7397 ioa_cfg->allow_interrupts = 1;
8701f185
WB		 7398 if (ioa_cfg->sis64) {
7399 /* Set the adapter to the correct endian mode. */
7400 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7401 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7402 }
7403
7be96900 7404 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7405
7406 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7407 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7408 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7409 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7410 return IPR_RC_JOB_CONTINUE;
7411 }
7412
7413 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7414 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7415
7be96900
WB		 7416 if (ioa_cfg->sis64) {
7417 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7418 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7419 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7420 } else
7421 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7422
1da177e4
LT		 7423 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7424
7425 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7426
214777ba
WB		 7427 if (ioa_cfg->sis64) {
7428 ipr_cmd->job_step = ipr_reset_next_stage;
7429 return IPR_RC_JOB_CONTINUE;
7430 }
7431
1da177e4 7432 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7433 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7434 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7435 ipr_cmd->done = ipr_reset_ioa_job;
7436 add_timer(&ipr_cmd->timer);
7437 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7438
7439 LEAVE;
7440 return IPR_RC_JOB_RETURN;
7441}
7442
7443/**
7444 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7445 * @ipr_cmd: ipr command struct
7446 *
7447 * This function is invoked when an adapter dump has run out
7448 * of processing time.
7449 *
7450 * Return value:
7451 * IPR_RC_JOB_CONTINUE
7452 **/
7453static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7454{
7455 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7456
7457 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 7458 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7459 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 7460 ioa_cfg->sdt_state = ABORT_DUMP;
7461
4c647e90 7462 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 7463 ipr_cmd->job_step = ipr_reset_alert;
7464
7465 return IPR_RC_JOB_CONTINUE;
7466}
7467
7468/**
7469 * ipr_unit_check_no_data - Log a unit check/no data error log
7470 * @ioa_cfg: ioa config struct
7471 *
7472 * Logs an error indicating the adapter unit checked, but for some
7473 * reason, we were unable to fetch the unit check buffer.
7474 *
7475 * Return value:
7476 * nothing
7477 **/
7478static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7479{
7480 ioa_cfg->errors_logged++;
7481 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7482}
7483
7484/**
7485 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7486 * @ioa_cfg: ioa config struct
7487 *
7488 * Fetches the unit check buffer from the adapter by clocking the data
7489 * through the mailbox register.
7490 *
7491 * Return value:
7492 * nothing
7493 **/
7494static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7495{
7496 unsigned long mailbox;
7497 struct ipr_hostrcb *hostrcb;
7498 struct ipr_uc_sdt sdt;
7499 int rc, length;
65f56475 7500 u32 ioasc;
1da177e4
LT		 7501
7502 mailbox = readl(ioa_cfg->ioa_mailbox);
7503
dcbad00e 7504 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 7505 ipr_unit_check_no_data(ioa_cfg);
7506 return;
7507 }
7508
7509 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7510 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7511 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7512
dcbad00e
WB		 7513 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7514 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7515 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 7516 ipr_unit_check_no_data(ioa_cfg);
7517 return;
7518 }
7519
7520 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 7521 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7522 length = be32_to_cpu(sdt.entry[0].end_token);
7523 else
7524 length = (be32_to_cpu(sdt.entry[0].end_token) -
7525 be32_to_cpu(sdt.entry[0].start_token)) &
7526 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 7527
7528 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7529 struct ipr_hostrcb, queue);
7530 list_del(&hostrcb->queue);
7531 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7532
7533 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 7534 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 7535 (__be32 *)&hostrcb->hcam,
7536 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7537
65f56475 7538 if (!rc) {
1da177e4 7539 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 7540 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 7541 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7542 ioa_cfg->sdt_state == GET_DUMP)
7543 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7544 } else
1da177e4
LT		 7545 ipr_unit_check_no_data(ioa_cfg);
7546
7547 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7548}
7549
110def85
WB		 7550/**
7551 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7552 * @ipr_cmd: ipr command struct
7553 *
7554 * Description: This function will call to get the unit check buffer.
7555 *
7556 * Return value:
7557 * IPR_RC_JOB_RETURN
7558 **/
7559static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7560{
7561 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7562
7563 ENTER;
7564 ioa_cfg->ioa_unit_checked = 0;
7565 ipr_get_unit_check_buffer(ioa_cfg);
7566 ipr_cmd->job_step = ipr_reset_alert;
7567 ipr_reset_start_timer(ipr_cmd, 0);
7568
7569 LEAVE;
7570 return IPR_RC_JOB_RETURN;
7571}
7572
1da177e4
LT		 7573/**
7574 * ipr_reset_restore_cfg_space - Restore PCI config space.
7575 * @ipr_cmd: ipr command struct
7576 *
7577 * Description: This function restores the saved PCI config space of
7578 * the adapter, fails all outstanding ops back to the callers, and
7579 * fetches the dump/unit check if applicable to this reset.
7580 *
7581 * Return value:
7582 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7583 **/
7584static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7585{
7586 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 7587 u32 int_reg;
1da177e4
LT		 7588
7589 ENTER;
99c965dd 7590 ioa_cfg->pdev->state_saved = true;
1d3c16a8 7591 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 7592
7593 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 7594 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 7595 return IPR_RC_JOB_CONTINUE;
7596 }
7597
7598 ipr_fail_all_ops(ioa_cfg);
7599
8701f185
WB		 7600 if (ioa_cfg->sis64) {
7601 /* Set the adapter to the correct endian mode. */
7602 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7603 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7604 }
7605
1da177e4 7606 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 7607 if (ioa_cfg->sis64) {
7608 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7609 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7610 return IPR_RC_JOB_RETURN;
7611 } else {
7612 ioa_cfg->ioa_unit_checked = 0;
7613 ipr_get_unit_check_buffer(ioa_cfg);
7614 ipr_cmd->job_step = ipr_reset_alert;
7615 ipr_reset_start_timer(ipr_cmd, 0);
7616 return IPR_RC_JOB_RETURN;
7617 }
1da177e4
LT		 7618 }
7619
7620 if (ioa_cfg->in_ioa_bringdown) {
7621 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7622 } else {
7623 ipr_cmd->job_step = ipr_reset_enable_ioa;
7624
7625 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 7626 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 7627 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 7628 if (ioa_cfg->sis64)
7629 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
7630 else
7631 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 7632 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7633 schedule_work(&ioa_cfg->work_q);
7634 return IPR_RC_JOB_RETURN;
7635 }
7636 }
7637
438b0331 7638 LEAVE;
1da177e4
LT		 7639 return IPR_RC_JOB_CONTINUE;
7640}
7641
e619e1a7
BK		 7642/**
7643 * ipr_reset_bist_done - BIST has completed on the adapter.
7644 * @ipr_cmd: ipr command struct
7645 *
7646 * Description: Unblock config space and resume the reset process.
7647 *
7648 * Return value:
7649 * IPR_RC_JOB_CONTINUE
7650 **/
7651static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7652{
fb51ccbf
JK		 7653 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7654
e619e1a7 7655 ENTER;
fb51ccbf
JK		 7656 if (ioa_cfg->cfg_locked)
7657 pci_cfg_access_unlock(ioa_cfg->pdev);
7658 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 7659 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7660 LEAVE;
7661 return IPR_RC_JOB_CONTINUE;
7662}
7663
1da177e4
LT		 7664/**
7665 * ipr_reset_start_bist - Run BIST on the adapter.
7666 * @ipr_cmd: ipr command struct
7667 *
7668 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7669 *
7670 * Return value:
7671 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7672 **/
7673static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7674{
7675 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 7676 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 7677
7678 ENTER;
cb237ef7
WB		 7679 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7680 writel(IPR_UPROCI_SIS64_START_BIST,
7681 ioa_cfg->regs.set_uproc_interrupt_reg32);
7682 else
7683 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7684
7685 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 7686 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 7687 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7688 rc = IPR_RC_JOB_RETURN;
cb237ef7 7689 } else {
fb51ccbf
JK		 7690 if (ioa_cfg->cfg_locked)
7691 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
7692 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 7693 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7694 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7695 }
7696
7697 LEAVE;
7698 return rc;
7699}
7700
463fc696
BK		 7701/**
7702 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7703 * @ipr_cmd: ipr command struct
7704 *
7705 * Description: This clears PCI reset to the adapter and delays two seconds.
7706 *
7707 * Return value:
7708 * IPR_RC_JOB_RETURN
7709 **/
7710static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7711{
7712 ENTER;
7713 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7714 ipr_cmd->job_step = ipr_reset_bist_done;
7715 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7716 LEAVE;
7717 return IPR_RC_JOB_RETURN;
7718}
7719
7720/**
7721 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7722 * @ipr_cmd: ipr command struct
7723 *
7724 * Description: This asserts PCI reset to the adapter.
7725 *
7726 * Return value:
7727 * IPR_RC_JOB_RETURN
7728 **/
7729static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7730{
7731 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7732 struct pci_dev *pdev = ioa_cfg->pdev;
7733
7734 ENTER;
463fc696
BK		 7735 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7736 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7737 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7738 LEAVE;
7739 return IPR_RC_JOB_RETURN;
7740}
7741
fb51ccbf
JK		 7742/**
7743 * ipr_reset_block_config_access_wait - Wait for permission to block config access
7744 * @ipr_cmd: ipr command struct
7745 *
7746 * Description: This attempts to block config access to the IOA.
7747 *
7748 * Return value:
7749 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7750 **/
7751static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
7752{
7753 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7754 int rc = IPR_RC_JOB_CONTINUE;
7755
7756 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
7757 ioa_cfg->cfg_locked = 1;
7758 ipr_cmd->job_step = ioa_cfg->reset;
7759 } else {
7760 if (ipr_cmd->u.time_left) {
7761 rc = IPR_RC_JOB_RETURN;
7762 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7763 ipr_reset_start_timer(ipr_cmd,
7764 IPR_CHECK_FOR_RESET_TIMEOUT);
7765 } else {
7766 ipr_cmd->job_step = ioa_cfg->reset;
7767 dev_err(&ioa_cfg->pdev->dev,
7768 "Timed out waiting to lock config access. Resetting anyway.\n");
7769 }
7770 }
7771
7772 return rc;
7773}
7774
7775/**
7776 * ipr_reset_block_config_access - Block config access to the IOA
7777 * @ipr_cmd: ipr command struct
7778 *
7779 * Description: This attempts to block config access to the IOA
7780 *
7781 * Return value:
7782 * IPR_RC_JOB_CONTINUE
7783 **/
7784static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
7785{
7786 ipr_cmd->ioa_cfg->cfg_locked = 0;
7787 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
7788 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7789 return IPR_RC_JOB_CONTINUE;
7790}
7791
1da177e4
LT		 7792/**
7793 * ipr_reset_allowed - Query whether or not IOA can be reset
7794 * @ioa_cfg: ioa config struct
7795 *
7796 * Return value:
7797 * 0 if reset not allowed / non-zero if reset is allowed
7798 **/
7799static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7800{
7801 volatile u32 temp_reg;
7802
7803 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7804 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7805}
7806
7807/**
7808 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7809 * @ipr_cmd: ipr command struct
7810 *
7811 * Description: This function waits for adapter permission to run BIST,
7812 * then runs BIST. If the adapter does not give permission after a
7813 * reasonable time, we will reset the adapter anyway. The impact of
7814 * resetting the adapter without warning the adapter is the risk of
7815 * losing the persistent error log on the adapter. If the adapter is
7816 * reset while it is writing to the flash on the adapter, the flash
7817 * segment will have bad ECC and be zeroed.
7818 *
7819 * Return value:
7820 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7821 **/
7822static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7823{
7824 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7825 int rc = IPR_RC_JOB_RETURN;
7826
7827 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7828 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7829 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7830 } else {
fb51ccbf 7831 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 7832 rc = IPR_RC_JOB_CONTINUE;
7833 }
7834
7835 return rc;
7836}
7837
7838/**
8701f185 7839 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 7840 * @ipr_cmd: ipr command struct
7841 *
7842 * Description: This function alerts the adapter that it will be reset.
7843 * If memory space is not currently enabled, proceed directly
7844 * to running BIST on the adapter. The timer must always be started
7845 * so we guarantee we do not run BIST from ipr_isr.
7846 *
7847 * Return value:
7848 * IPR_RC_JOB_RETURN
7849 **/
7850static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7851{
7852 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7853 u16 cmd_reg;
7854 int rc;
7855
7856 ENTER;
7857 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7858
7859 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7860 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 7861 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 7862 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7863 } else {
fb51ccbf 7864 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 7865 }
7866
7867 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7868 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7869
7870 LEAVE;
7871 return IPR_RC_JOB_RETURN;
7872}
7873
7874/**
7875 * ipr_reset_ucode_download_done - Microcode download completion
7876 * @ipr_cmd: ipr command struct
7877 *
7878 * Description: This function unmaps the microcode download buffer.
7879 *
7880 * Return value:
7881 * IPR_RC_JOB_CONTINUE
7882 **/
7883static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7884{
7885 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7886 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7887
7888 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7889 sglist->num_sg, DMA_TO_DEVICE);
7890
7891 ipr_cmd->job_step = ipr_reset_alert;
7892 return IPR_RC_JOB_CONTINUE;
7893}
7894
7895/**
7896 * ipr_reset_ucode_download - Download microcode to the adapter
7897 * @ipr_cmd: ipr command struct
7898 *
7899 * Description: This function checks to see if it there is microcode
7900 * to download to the adapter. If there is, a download is performed.
7901 *
7902 * Return value:
7903 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7904 **/
7905static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7906{
7907 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7908 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7909
7910 ENTER;
7911 ipr_cmd->job_step = ipr_reset_alert;
7912
7913 if (!sglist)
7914 return IPR_RC_JOB_CONTINUE;
7915
7916 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7917 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7918 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7919 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7920 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7921 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7922 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7923
a32c055f
WB		 7924 if (ioa_cfg->sis64)
7925 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7926 else
7927 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 7928 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7929
7930 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7931 IPR_WRITE_BUFFER_TIMEOUT);
7932
7933 LEAVE;
7934 return IPR_RC_JOB_RETURN;
7935}
7936
7937/**
7938 * ipr_reset_shutdown_ioa - Shutdown the adapter
7939 * @ipr_cmd: ipr command struct
7940 *
7941 * Description: This function issues an adapter shutdown of the
7942 * specified type to the specified adapter as part of the
7943 * adapter reset job.
7944 *
7945 * Return value:
7946 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7947 **/
7948static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7949{
7950 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7951 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7952 unsigned long timeout;
7953 int rc = IPR_RC_JOB_CONTINUE;
7954
7955 ENTER;
7956 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7957 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7958 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7959 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7960 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7961
ac09c349
BK		 7962 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7963 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7964 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7965 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 7966 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7967 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 7968 else
ac09c349 7969 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7970
7971 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7972
7973 rc = IPR_RC_JOB_RETURN;
7974 ipr_cmd->job_step = ipr_reset_ucode_download;
7975 } else
7976 ipr_cmd->job_step = ipr_reset_alert;
7977
7978 LEAVE;
7979 return rc;
7980}
7981
7982/**
7983 * ipr_reset_ioa_job - Adapter reset job
7984 * @ipr_cmd: ipr command struct
7985 *
7986 * Description: This function is the job router for the adapter reset job.
7987 *
7988 * Return value:
7989 * none
7990 **/
7991static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7992{
7993 u32 rc, ioasc;
1da177e4
LT		 7994 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7995
7996 do {
96d21f00 7997 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 7998
7999 if (ioa_cfg->reset_cmd != ipr_cmd) {
8000 /*
8001 * We are doing nested adapter resets and this is
8002 * not the current reset job.
8003 */
8004 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8005 return;
8006 }
8007
8008 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e 8009 rc = ipr_cmd->job_step_failed(ipr_cmd);
8010 if (rc == IPR_RC_JOB_RETURN)
8011 return;
1da177e4
LT		 8012 }
8013
8014 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8015 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4
LT		 8016 rc = ipr_cmd->job_step(ipr_cmd);
8017 } while(rc == IPR_RC_JOB_CONTINUE);
8018}
8019
8020/**
8021 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8022 * @ioa_cfg: ioa config struct
8023 * @job_step: first job step of reset job
8024 * @shutdown_type: shutdown type
8025 *
8026 * Description: This function will initiate the reset of the given adapter
8027 * starting at the selected job step.
8028 * If the caller needs to wait on the completion of the reset,
8029 * the caller must sleep on the reset_wait_q.
8030 *
8031 * Return value:
8032 * none
8033 **/
8034static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8035 int (*job_step) (struct ipr_cmnd *),
8036 enum ipr_shutdown_type shutdown_type)
8037{
8038 struct ipr_cmnd *ipr_cmd;
8039
8040 ioa_cfg->in_reset_reload = 1;
8041 ioa_cfg->allow_cmds = 0;
8042 scsi_block_requests(ioa_cfg->host);
8043
8044 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8045 ioa_cfg->reset_cmd = ipr_cmd;
8046 ipr_cmd->job_step = job_step;
8047 ipr_cmd->u.shutdown_type = shutdown_type;
8048
8049 ipr_reset_ioa_job(ipr_cmd);
8050}
8051
8052/**
8053 * ipr_initiate_ioa_reset - Initiate an adapter reset
8054 * @ioa_cfg: ioa config struct
8055 * @shutdown_type: shutdown type
8056 *
8057 * Description: This function will initiate the reset of the given adapter.
8058 * If the caller needs to wait on the completion of the reset,
8059 * the caller must sleep on the reset_wait_q.
8060 *
8061 * Return value:
8062 * none
8063 **/
8064static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8065 enum ipr_shutdown_type shutdown_type)
8066{
8067 if (ioa_cfg->ioa_is_dead)
8068 return;
8069
41e9a696
BK		 8070 if (ioa_cfg->in_reset_reload) {
8071 if (ioa_cfg->sdt_state == GET_DUMP)
8072 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8073 else if (ioa_cfg->sdt_state == READ_DUMP)
8074 ioa_cfg->sdt_state = ABORT_DUMP;
8075 }
1da177e4
LT		 8076
8077 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8078 dev_err(&ioa_cfg->pdev->dev,
8079 "IOA taken offline - error recovery failed\n");
8080
8081 ioa_cfg->reset_retries = 0;
8082 ioa_cfg->ioa_is_dead = 1;
8083
8084 if (ioa_cfg->in_ioa_bringdown) {
8085 ioa_cfg->reset_cmd = NULL;
8086 ioa_cfg->in_reset_reload = 0;
8087 ipr_fail_all_ops(ioa_cfg);
8088 wake_up_all(&ioa_cfg->reset_wait_q);
8089
8090 spin_unlock_irq(ioa_cfg->host->host_lock);
8091 scsi_unblock_requests(ioa_cfg->host);
8092 spin_lock_irq(ioa_cfg->host->host_lock);
8093 return;
8094 } else {
8095 ioa_cfg->in_ioa_bringdown = 1;
8096 shutdown_type = IPR_SHUTDOWN_NONE;
8097 }
8098 }
8099
8100 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8101 shutdown_type);
8102}
8103
f8a88b19
LV		 8104/**
8105 * ipr_reset_freeze - Hold off all I/O activity
8106 * @ipr_cmd: ipr command struct
8107 *
8108 * Description: If the PCI slot is frozen, hold off all I/O
8109 * activity; then, as soon as the slot is available again,
8110 * initiate an adapter reset.
8111 */
8112static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8113{
8114 /* Disallow new interrupts, avoid loop */
8115 ipr_cmd->ioa_cfg->allow_interrupts = 0;
8116 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
8117 ipr_cmd->done = ipr_reset_ioa_job;
8118 return IPR_RC_JOB_RETURN;
8119}
8120
8121/**
8122 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8123 * @pdev: PCI device struct
8124 *
8125 * Description: This routine is called to tell us that the PCI bus
8126 * is down. Can't do anything here, except put the device driver
8127 * into a holding pattern, waiting for the PCI bus to come back.
8128 */
8129static void ipr_pci_frozen(struct pci_dev *pdev)
8130{
8131 unsigned long flags = 0;
8132 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8133
8134 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8135 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8136 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8137}
8138
8139/**
8140 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8141 * @pdev: PCI device struct
8142 *
8143 * Description: This routine is called by the pci error recovery
8144 * code after the PCI slot has been reset, just before we
8145 * should resume normal operations.
8146 */
8147static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8148{
8149 unsigned long flags = 0;
8150 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8151
8152 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
463fc696
BK		 8153 if (ioa_cfg->needs_warm_reset)
8154 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8155 else
8156 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8157 IPR_SHUTDOWN_NONE);
f8a88b19
LV		 8158 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8159 return PCI_ERS_RESULT_RECOVERED;
8160}
8161
8162/**
8163 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8164 * @pdev: PCI device struct
8165 *
8166 * Description: This routine is called when the PCI bus has
8167 * permanently failed.
8168 */
8169static void ipr_pci_perm_failure(struct pci_dev *pdev)
8170{
8171 unsigned long flags = 0;
8172 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8173
8174 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8175 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8176 ioa_cfg->sdt_state = ABORT_DUMP;
8177 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8178 ioa_cfg->in_ioa_bringdown = 1;
6ff63896 8179 ioa_cfg->allow_cmds = 0;
f8a88b19
LV		 8180 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8181 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8182}
8183
8184/**
8185 * ipr_pci_error_detected - Called when a PCI error is detected.
8186 * @pdev: PCI device struct
8187 * @state: PCI channel state
8188 *
8189 * Description: Called when a PCI error is detected.
8190 *
8191 * Return value:
8192 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8193 */
8194static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8195 pci_channel_state_t state)
8196{
8197 switch (state) {
8198 case pci_channel_io_frozen:
8199 ipr_pci_frozen(pdev);
8200 return PCI_ERS_RESULT_NEED_RESET;
8201 case pci_channel_io_perm_failure:
8202 ipr_pci_perm_failure(pdev);
8203 return PCI_ERS_RESULT_DISCONNECT;
8204 break;
8205 default:
8206 break;
8207 }
8208 return PCI_ERS_RESULT_NEED_RESET;
8209}
8210
1da177e4
LT		 8211/**
8212 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8213 * @ioa_cfg: ioa cfg struct
8214 *
8215 * Description: This is the second phase of adapter intialization
8216 * This function takes care of initilizing the adapter to the point
8217 * where it can accept new commands.
8218
8219 * Return value:
b1c11812 8220 * 0 on success / -EIO on failure
1da177e4
LT		 8221 **/
8222static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8223{
8224 int rc = 0;
8225 unsigned long host_lock_flags = 0;
8226
8227 ENTER;
8228 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8229 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
ce155cce 8230 if (ioa_cfg->needs_hard_reset) {
8231 ioa_cfg->needs_hard_reset = 0;
8232 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8233 } else
8234 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8235 IPR_SHUTDOWN_NONE);
1da177e4
LT		 8236
8237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8238 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8239 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8240
8241 if (ioa_cfg->ioa_is_dead) {
8242 rc = -EIO;
8243 } else if (ipr_invalid_adapter(ioa_cfg)) {
8244 if (!ipr_testmode)
8245 rc = -EIO;
8246
8247 dev_err(&ioa_cfg->pdev->dev,
8248 "Adapter not supported in this hardware configuration.\n");
8249 }
8250
8251 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8252
8253 LEAVE;
8254 return rc;
8255}
8256
8257/**
8258 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8259 * @ioa_cfg: ioa config struct
8260 *
8261 * Return value:
8262 * none
8263 **/
8264static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8265{
8266 int i;
8267
8268 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8269 if (ioa_cfg->ipr_cmnd_list[i])
8270 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8271 ioa_cfg->ipr_cmnd_list[i],
8272 ioa_cfg->ipr_cmnd_list_dma[i]);
8273
8274 ioa_cfg->ipr_cmnd_list[i] = NULL;
8275 }
8276
8277 if (ioa_cfg->ipr_cmd_pool)
8278 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8279
8280 ioa_cfg->ipr_cmd_pool = NULL;
8281}
8282
8283/**
8284 * ipr_free_mem - Frees memory allocated for an adapter
8285 * @ioa_cfg: ioa cfg struct
8286 *
8287 * Return value:
8288 * nothing
8289 **/
8290static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8291{
8292 int i;
8293
8294 kfree(ioa_cfg->res_entries);
8295 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8296 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8297 ipr_free_cmd_blks(ioa_cfg);
8298 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8299 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
3e7ebdfa
WB		 8300 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8301 ioa_cfg->u.cfg_table,
1da177e4
LT		 8302 ioa_cfg->cfg_table_dma);
8303
8304 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8305 pci_free_consistent(ioa_cfg->pdev,
8306 sizeof(struct ipr_hostrcb),
8307 ioa_cfg->hostrcb[i],
8308 ioa_cfg->hostrcb_dma[i]);
8309 }
8310
8311 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8312 kfree(ioa_cfg->trace);
8313}
8314
8315/**
8316 * ipr_free_all_resources - Free all allocated resources for an adapter.
8317 * @ipr_cmd: ipr command struct
8318 *
8319 * This function frees all allocated resources for the
8320 * specified adapter.
8321 *
8322 * Return value:
8323 * none
8324 **/
8325static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8326{
8327 struct pci_dev *pdev = ioa_cfg->pdev;
8328
8329 ENTER;
8330 free_irq(pdev->irq, ioa_cfg);
5a9ef25b 8331 pci_disable_msi(pdev);
1da177e4
LT		 8332 iounmap(ioa_cfg->hdw_dma_regs);
8333 pci_release_regions(pdev);
8334 ipr_free_mem(ioa_cfg);
8335 scsi_host_put(ioa_cfg->host);
8336 pci_disable_device(pdev);
8337 LEAVE;
8338}
8339
8340/**
8341 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8342 * @ioa_cfg: ioa config struct
8343 *
8344 * Return value:
8345 * 0 on success / -ENOMEM on allocation failure
8346 **/
8347static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8348{
8349 struct ipr_cmnd *ipr_cmd;
8350 struct ipr_ioarcb *ioarcb;
8351 dma_addr_t dma_addr;
8352 int i;
8353
8354 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
a32c055f 8355 sizeof(struct ipr_cmnd), 16, 0);
1da177e4
LT		 8356
8357 if (!ioa_cfg->ipr_cmd_pool)
8358 return -ENOMEM;
8359
8360 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
e94b1766 8361 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 8362
8363 if (!ipr_cmd) {
8364 ipr_free_cmd_blks(ioa_cfg);
8365 return -ENOMEM;
8366 }
8367
8368 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8369 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8370 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8371
8372 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 8373 ipr_cmd->dma_addr = dma_addr;
8374 if (ioa_cfg->sis64)
8375 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8376 else
8377 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8378
1da177e4 8379 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 8380 if (ioa_cfg->sis64) {
8381 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8382 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8383 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 8384 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 8385 } else {
8386 ioarcb->write_ioadl_addr =
8387 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8388 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8389 ioarcb->ioasa_host_pci_addr =
96d21f00 8390 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 8391 }
1da177e4
LT		 8392 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8393 ipr_cmd->cmd_index = i;
8394 ipr_cmd->ioa_cfg = ioa_cfg;
8395 ipr_cmd->sense_buffer_dma = dma_addr +
8396 offsetof(struct ipr_cmnd, sense_buffer);
8397
8398 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8399 }
8400
8401 return 0;
8402}
8403
8404/**
8405 * ipr_alloc_mem - Allocate memory for an adapter
8406 * @ioa_cfg: ioa config struct
8407 *
8408 * Return value:
8409 * 0 on success / non-zero for error
8410 **/
8411static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8412{
8413 struct pci_dev *pdev = ioa_cfg->pdev;
8414 int i, rc = -ENOMEM;
8415
8416 ENTER;
0bc42e35 8417 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 8418 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 8419
8420 if (!ioa_cfg->res_entries)
8421 goto out;
8422
3e7ebdfa
WB		 8423 if (ioa_cfg->sis64) {
8424 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8425 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8426 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8427 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8428 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8429 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8430 }
8431
8432 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 8433 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 8434 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8435 }
1da177e4
LT		 8436
8437 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8438 sizeof(struct ipr_misc_cbs),
8439 &ioa_cfg->vpd_cbs_dma);
8440
8441 if (!ioa_cfg->vpd_cbs)
8442 goto out_free_res_entries;
8443
8444 if (ipr_alloc_cmd_blks(ioa_cfg))
8445 goto out_free_vpd_cbs;
8446
8447 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8448 sizeof(u32) * IPR_NUM_CMD_BLKS,
8449 &ioa_cfg->host_rrq_dma);
8450
8451 if (!ioa_cfg->host_rrq)
8452 goto out_ipr_free_cmd_blocks;
8453
3e7ebdfa
WB		 8454 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8455 ioa_cfg->cfg_table_size,
8456 &ioa_cfg->cfg_table_dma);
1da177e4 8457
3e7ebdfa 8458 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 8459 goto out_free_host_rrq;
8460
8461 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8462 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8463 sizeof(struct ipr_hostrcb),
8464 &ioa_cfg->hostrcb_dma[i]);
8465
8466 if (!ioa_cfg->hostrcb[i])
8467 goto out_free_hostrcb_dma;
8468
8469 ioa_cfg->hostrcb[i]->hostrcb_dma =
8470 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 8471 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 8472 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8473 }
8474
0bc42e35 8475 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 8476 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8477
8478 if (!ioa_cfg->trace)
8479 goto out_free_hostrcb_dma;
8480
1da177e4
LT		 8481 rc = 0;
8482out:
8483 LEAVE;
8484 return rc;
8485
8486out_free_hostrcb_dma:
8487 while (i-- > 0) {
8488 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8489 ioa_cfg->hostrcb[i],
8490 ioa_cfg->hostrcb_dma[i]);
8491 }
3e7ebdfa
WB		 8492 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8493 ioa_cfg->u.cfg_table,
8494 ioa_cfg->cfg_table_dma);
1da177e4
LT		 8495out_free_host_rrq:
8496 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8497 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8498out_ipr_free_cmd_blocks:
8499 ipr_free_cmd_blks(ioa_cfg);
8500out_free_vpd_cbs:
8501 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8502 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8503out_free_res_entries:
8504 kfree(ioa_cfg->res_entries);
8505 goto out;
8506}
8507
8508/**
8509 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8510 * @ioa_cfg: ioa config struct
8511 *
8512 * Return value:
8513 * none
8514 **/
8515static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8516{
8517 int i;
8518
8519 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8520 ioa_cfg->bus_attr[i].bus = i;
8521 ioa_cfg->bus_attr[i].qas_enabled = 0;
8522 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8523 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8524 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8525 else
8526 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8527 }
8528}
8529
8530/**
8531 * ipr_init_ioa_cfg - Initialize IOA config struct
8532 * @ioa_cfg: ioa config struct
8533 * @host: scsi host struct
8534 * @pdev: PCI dev struct
8535 *
8536 * Return value:
8537 * none
8538 **/
8539static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8540 struct Scsi_Host *host, struct pci_dev *pdev)
8541{
8542 const struct ipr_interrupt_offsets *p;
8543 struct ipr_interrupts *t;
8544 void __iomem *base;
8545
8546 ioa_cfg->host = host;
8547 ioa_cfg->pdev = pdev;
8548 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 8549 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 8550 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8551 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8552 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8553 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8554 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8555 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8556 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8557 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8558
8559 INIT_LIST_HEAD(&ioa_cfg->free_q);
8560 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8561 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8562 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8563 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8564 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 8565 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 8566 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 8567 init_waitqueue_head(&ioa_cfg->msi_wait_q);
1da177e4
LT		 8568 ioa_cfg->sdt_state = INACTIVE;
8569
8570 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 8571 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 8572
3e7ebdfa
WB		 8573 if (ioa_cfg->sis64) {
8574 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8575 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8576 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8577 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8578 } else {
8579 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8580 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8581 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8582 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8583 }
1da177e4
LT		 8584 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8585 host->unique_id = host->host_no;
8586 host->max_cmd_len = IPR_MAX_CDB_LEN;
8587 pci_set_drvdata(pdev, ioa_cfg);
8588
8589 p = &ioa_cfg->chip_cfg->regs;
8590 t = &ioa_cfg->regs;
8591 base = ioa_cfg->hdw_dma_regs;
8592
8593 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8594 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
214777ba 8595 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
1da177e4 8596 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
214777ba 8597 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
1da177e4 8598 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
214777ba 8599 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
1da177e4 8600 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
214777ba 8601 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
1da177e4
LT		 8602 t->ioarrin_reg = base + p->ioarrin_reg;
8603 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
214777ba 8604 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
1da177e4 8605 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
214777ba 8606 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
1da177e4 8607 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
214777ba 8608 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
dcbad00e
WB		 8609
8610 if (ioa_cfg->sis64) {
214777ba 8611 t->init_feedback_reg = base + p->init_feedback_reg;
dcbad00e
WB		 8612 t->dump_addr_reg = base + p->dump_addr_reg;
8613 t->dump_data_reg = base + p->dump_data_reg;
8701f185 8614 t->endian_swap_reg = base + p->endian_swap_reg;
dcbad00e 8615 }
1da177e4
LT		 8616}
8617
8618/**
1be7bd82 8619 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 8620 * @dev_id: PCI device id struct
8621 *
8622 * Return value:
1be7bd82 8623 * ptr to chip information on success / NULL on failure
1da177e4 8624 **/
1be7bd82
WB		 8625static const struct ipr_chip_t * __devinit
8626ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 8627{
8628 int i;
8629
1da177e4
LT		 8630 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8631 if (ipr_chip[i].vendor == dev_id->vendor &&
8632 ipr_chip[i].device == dev_id->device)
1be7bd82 8633 return &ipr_chip[i];
1da177e4
LT		 8634 return NULL;
8635}
8636
95fecd90
WB		 8637/**
8638 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8639 * @pdev: PCI device struct
8640 *
8641 * Description: Simply set the msi_received flag to 1 indicating that
8642 * Message Signaled Interrupts are supported.
8643 *
8644 * Return value:
8645 * 0 on success / non-zero on failure
8646 **/
8647static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8648{
8649 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8650 unsigned long lock_flags = 0;
8651 irqreturn_t rc = IRQ_HANDLED;
8652
8653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8654
8655 ioa_cfg->msi_received = 1;
8656 wake_up(&ioa_cfg->msi_wait_q);
8657
8658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8659 return rc;
8660}
8661
8662/**
8663 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8664 * @pdev: PCI device struct
8665 *
8666 * Description: The return value from pci_enable_msi() can not always be
8667 * trusted. This routine sets up and initiates a test interrupt to determine
8668 * if the interrupt is received via the ipr_test_intr() service routine.
8669 * If the tests fails, the driver will fall back to LSI.
8670 *
8671 * Return value:
8672 * 0 on success / non-zero on failure
8673 **/
8674static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8675 struct pci_dev *pdev)
8676{
8677 int rc;
8678 volatile u32 int_reg;
8679 unsigned long lock_flags = 0;
8680
8681 ENTER;
8682
8683 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8684 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8685 ioa_cfg->msi_received = 0;
8686 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 8687 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 8688 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8689 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8690
8691 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8692 if (rc) {
8693 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8694 return rc;
8695 } else if (ipr_debug)
8696 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8697
214777ba 8698 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 8699 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8700 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8701 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8702
8703 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8704 if (!ioa_cfg->msi_received) {
8705 /* MSI test failed */
8706 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8707 rc = -EOPNOTSUPP;
8708 } else if (ipr_debug)
8709 dev_info(&pdev->dev, "MSI test succeeded.\n");
8710
8711 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8712
8713 free_irq(pdev->irq, ioa_cfg);
8714
8715 LEAVE;
8716
8717 return rc;
8718}
8719
1da177e4
LT		 8720/**
8721 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8722 * @pdev: PCI device struct
8723 * @dev_id: PCI device id struct
8724 *
8725 * Return value:
8726 * 0 on success / non-zero on failure
8727 **/
8728static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8729 const struct pci_device_id *dev_id)
8730{
8731 struct ipr_ioa_cfg *ioa_cfg;
8732 struct Scsi_Host *host;
8733 unsigned long ipr_regs_pci;
8734 void __iomem *ipr_regs;
a2a65a3e 8735 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 8736 volatile u32 mask, uproc, interrupts;
1da177e4
LT		 8737
8738 ENTER;
8739
8740 if ((rc = pci_enable_device(pdev))) {
8741 dev_err(&pdev->dev, "Cannot enable adapter\n");
8742 goto out;
8743 }
8744
8745 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8746
8747 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8748
8749 if (!host) {
8750 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8751 rc = -ENOMEM;
8752 goto out_disable;
8753 }
8754
8755 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8756 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
35a39691
BK		 8757 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8758 sata_port_info.flags, &ipr_sata_ops);
1da177e4 8759
1be7bd82 8760 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 8761
1be7bd82 8762 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 8763 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8764 dev_id->vendor, dev_id->device);
8765 goto out_scsi_host_put;
8766 }
8767
a32c055f
WB		 8768 /* set SIS 32 or SIS 64 */
8769 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82
WB		 8770 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8771
5469cb5b
BK		 8772 if (ipr_transop_timeout)
8773 ioa_cfg->transop_timeout = ipr_transop_timeout;
8774 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8775 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8776 else
8777 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8778
44c10138 8779 ioa_cfg->revid = pdev->revision;
463fc696 8780
1da177e4
LT		 8781 ipr_regs_pci = pci_resource_start(pdev, 0);
8782
8783 rc = pci_request_regions(pdev, IPR_NAME);
8784 if (rc < 0) {
8785 dev_err(&pdev->dev,
8786 "Couldn't register memory range of registers\n");
8787 goto out_scsi_host_put;
8788 }
8789
25729a7f 8790 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 8791
8792 if (!ipr_regs) {
8793 dev_err(&pdev->dev,
8794 "Couldn't map memory range of registers\n");
8795 rc = -ENOMEM;
8796 goto out_release_regions;
8797 }
8798
8799 ioa_cfg->hdw_dma_regs = ipr_regs;
8800 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8801 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8802
8803 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8804
8805 pci_set_master(pdev);
8806
a32c055f
WB		 8807 if (ioa_cfg->sis64) {
8808 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8809 if (rc < 0) {
8810 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8811 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8812 }
8813
8814 } else
8815 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8816
1da177e4
LT		 8817 if (rc < 0) {
8818 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8819 goto cleanup_nomem;
8820 }
8821
8822 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8823 ioa_cfg->chip_cfg->cache_line_size);
8824
8825 if (rc != PCIBIOS_SUCCESSFUL) {
8826 dev_err(&pdev->dev, "Write of cache line size failed\n");
8827 rc = -EIO;
8828 goto cleanup_nomem;
8829 }
8830
95fecd90 8831 /* Enable MSI style interrupts if they are supported. */
1be7bd82 8832 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
95fecd90
WB		 8833 rc = ipr_test_msi(ioa_cfg, pdev);
8834 if (rc == -EOPNOTSUPP)
8835 pci_disable_msi(pdev);
8836 else if (rc)
8837 goto out_msi_disable;
8838 else
8839 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8840 } else if (ipr_debug)
8841 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8842
1da177e4
LT		 8843 /* Save away PCI config space for use following IOA reset */
8844 rc = pci_save_state(pdev);
8845
8846 if (rc != PCIBIOS_SUCCESSFUL) {
8847 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8848 rc = -EIO;
f170c684 8849 goto out_msi_disable;
1da177e4
LT		 8850 }
8851
8852 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 8853 goto out_msi_disable;
1da177e4
LT		 8854
8855 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 8856 goto out_msi_disable;
1da177e4 8857
3e7ebdfa
WB		 8858 if (ioa_cfg->sis64)
8859 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8860 + ((sizeof(struct ipr_config_table_entry64)
8861 * ioa_cfg->max_devs_supported)));
8862 else
8863 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8864 + ((sizeof(struct ipr_config_table_entry)
8865 * ioa_cfg->max_devs_supported)));
8866
1da177e4
LT		 8867 rc = ipr_alloc_mem(ioa_cfg);
8868 if (rc < 0) {
8869 dev_err(&pdev->dev,
8870 "Couldn't allocate enough memory for device driver!\n");
f170c684 8871 goto out_msi_disable;
1da177e4
LT		 8872 }
8873
ce155cce 8874 /*
8875 * If HRRQ updated interrupt is not masked, or reset alert is set,
8876 * the card is in an unknown state and needs a hard reset
8877 */
214777ba
WB		 8878 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8879 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8880 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce 8881 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8882 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 8883 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 8884 ioa_cfg->needs_hard_reset = 1;
8885 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8886 ioa_cfg->ioa_unit_checked = 1;
ce155cce 8887
1da177e4 8888 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
95fecd90
WB		 8889 rc = request_irq(pdev->irq, ipr_isr,
8890 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8891 IPR_NAME, ioa_cfg);
1da177e4
LT		 8892
8893 if (rc) {
8894 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8895 pdev->irq, rc);
8896 goto cleanup_nolog;
8897 }
8898
463fc696
BK		 8899 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8900 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8901 ioa_cfg->needs_warm_reset = 1;
8902 ioa_cfg->reset = ipr_reset_slot_reset;
8903 } else
8904 ioa_cfg->reset = ipr_reset_start_bist;
8905
1da177e4
LT		 8906 spin_lock(&ipr_driver_lock);
8907 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8908 spin_unlock(&ipr_driver_lock);
8909
8910 LEAVE;
8911out:
8912 return rc;
8913
8914cleanup_nolog:
8915 ipr_free_mem(ioa_cfg);
95fecd90
WB		 8916out_msi_disable:
8917 pci_disable_msi(pdev);
f170c684
JL		 8918cleanup_nomem:
8919 iounmap(ipr_regs);
1da177e4
LT		 8920out_release_regions:
8921 pci_release_regions(pdev);
8922out_scsi_host_put:
8923 scsi_host_put(host);
8924out_disable:
8925 pci_disable_device(pdev);
8926 goto out;
8927}
8928
8929/**
8930 * ipr_scan_vsets - Scans for VSET devices
8931 * @ioa_cfg: ioa config struct
8932 *
8933 * Description: Since the VSET resources do not follow SAM in that we can have
8934 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8935 *
8936 * Return value:
8937 * none
8938 **/
8939static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8940{
8941 int target, lun;
8942
8943 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8944 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8945 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8946}
8947
8948/**
8949 * ipr_initiate_ioa_bringdown - Bring down an adapter
8950 * @ioa_cfg: ioa config struct
8951 * @shutdown_type: shutdown type
8952 *
8953 * Description: This function will initiate bringing down the adapter.
8954 * This consists of issuing an IOA shutdown to the adapter
8955 * to flush the cache, and running BIST.
8956 * If the caller needs to wait on the completion of the reset,
8957 * the caller must sleep on the reset_wait_q.
8958 *
8959 * Return value:
8960 * none
8961 **/
8962static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8963 enum ipr_shutdown_type shutdown_type)
8964{
8965 ENTER;
8966 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8967 ioa_cfg->sdt_state = ABORT_DUMP;
8968 ioa_cfg->reset_retries = 0;
8969 ioa_cfg->in_ioa_bringdown = 1;
8970 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8971 LEAVE;
8972}
8973
8974/**
8975 * __ipr_remove - Remove a single adapter
8976 * @pdev: pci device struct
8977 *
8978 * Adapter hot plug remove entry point.
8979 *
8980 * Return value:
8981 * none
8982 **/
8983static void __ipr_remove(struct pci_dev *pdev)
8984{
8985 unsigned long host_lock_flags = 0;
8986 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8987 ENTER;
8988
8989 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
970ea294
BK		 8990 while(ioa_cfg->in_reset_reload) {
8991 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8992 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8993 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8994 }
8995
1da177e4
LT		 8996 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8997
8998 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8999 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
a684b8da 9000 flush_work_sync(&ioa_cfg->work_q);
1da177e4
LT		 9001 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9002
9003 spin_lock(&ipr_driver_lock);
9004 list_del(&ioa_cfg->queue);
9005 spin_unlock(&ipr_driver_lock);
9006
9007 if (ioa_cfg->sdt_state == ABORT_DUMP)
9008 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9009 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9010
9011 ipr_free_all_resources(ioa_cfg);
9012
9013 LEAVE;
9014}
9015
9016/**
9017 * ipr_remove - IOA hot plug remove entry point
9018 * @pdev: pci device struct
9019 *
9020 * Adapter hot plug remove entry point.
9021 *
9022 * Return value:
9023 * none
9024 **/
f381642d 9025static void __devexit ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 9026{
9027 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9028
9029 ENTER;
9030
ee959b00 9031 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 9032 &ipr_trace_attr);
ee959b00 9033 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9034 &ipr_dump_attr);
9035 scsi_remove_host(ioa_cfg->host);
9036
9037 __ipr_remove(pdev);
9038
9039 LEAVE;
9040}
9041
9042/**
9043 * ipr_probe - Adapter hot plug add entry point
9044 *
9045 * Return value:
9046 * 0 on success / non-zero on failure
9047 **/
9048static int __devinit ipr_probe(struct pci_dev *pdev,
9049 const struct pci_device_id *dev_id)
9050{
9051 struct ipr_ioa_cfg *ioa_cfg;
9052 int rc;
9053
9054 rc = ipr_probe_ioa(pdev, dev_id);
9055
9056 if (rc)
9057 return rc;
9058
9059 ioa_cfg = pci_get_drvdata(pdev);
9060 rc = ipr_probe_ioa_part2(ioa_cfg);
9061
9062 if (rc) {
9063 __ipr_remove(pdev);
9064 return rc;
9065 }
9066
9067 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9068
9069 if (rc) {
9070 __ipr_remove(pdev);
9071 return rc;
9072 }
9073
ee959b00 9074 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9075 &ipr_trace_attr);
9076
9077 if (rc) {
9078 scsi_remove_host(ioa_cfg->host);
9079 __ipr_remove(pdev);
9080 return rc;
9081 }
9082
ee959b00 9083 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9084 &ipr_dump_attr);
9085
9086 if (rc) {
ee959b00 9087 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9088 &ipr_trace_attr);
9089 scsi_remove_host(ioa_cfg->host);
9090 __ipr_remove(pdev);
9091 return rc;
9092 }
9093
9094 scsi_scan_host(ioa_cfg->host);
9095 ipr_scan_vsets(ioa_cfg);
9096 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9097 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 9098 ioa_cfg->host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9099 schedule_work(&ioa_cfg->work_q);
9100 return 0;
9101}
9102
9103/**
9104 * ipr_shutdown - Shutdown handler.
d18c3db5 9105 * @pdev: pci device struct
1da177e4
LT		 9106 *
9107 * This function is invoked upon system shutdown/reboot. It will issue
9108 * an adapter shutdown to the adapter to flush the write cache.
9109 *
9110 * Return value:
9111 * none
9112 **/
d18c3db5 9113static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 9114{
d18c3db5 9115 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4
LT		 9116 unsigned long lock_flags = 0;
9117
9118 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 9119 while(ioa_cfg->in_reset_reload) {
9120 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9121 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9122 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9123 }
9124
1da177e4
LT		 9125 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9126 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9127 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9128}
9129
9130static struct pci_device_id ipr_pci_table[] __devinitdata = {
9131 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9132 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 9133 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9134 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 9135 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9136 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 9137 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9138 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 9139 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9140 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 9141 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9142 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 9143 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9144 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 9145 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 9146 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9147 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9148 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 9149 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9150 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 9151 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9152 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9153 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 9154 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9155 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9156 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 9157 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9158 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 9159 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9160 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 9161 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 9162 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9163 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 9164 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 9165 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9166 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 9167 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9168 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 9169 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9170 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 9171 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 9172 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 9173 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 9174 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 9175 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 9176 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 9177 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 9178 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9179 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9180 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9181 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9182 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9183 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 9184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9185 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9187 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9188 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9189 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
5a918353
WB		 9190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9191 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 9192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9193 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 9194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9195 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 9196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9197 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 9198 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9199 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 9200 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9201 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
9202 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9203 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
1da177e4
LT		 9204 { }
9205};
9206MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9207
f8a88b19
LV		 9208static struct pci_error_handlers ipr_err_handler = {
9209 .error_detected = ipr_pci_error_detected,
9210 .slot_reset = ipr_pci_slot_reset,
9211};
9212
1da177e4
LT		 9213static struct pci_driver ipr_driver = {
9214 .name = IPR_NAME,
9215 .id_table = ipr_pci_table,
9216 .probe = ipr_probe,
f381642d 9217 .remove = __devexit_p(ipr_remove),
d18c3db5 9218 .shutdown = ipr_shutdown,
f8a88b19 9219 .err_handler = &ipr_err_handler,
1da177e4
LT		 9220};
9221
f72919ec
WB		 9222/**
9223 * ipr_halt_done - Shutdown prepare completion
9224 *
9225 * Return value:
9226 * none
9227 **/
9228static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9229{
9230 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9231
9232 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9233}
9234
9235/**
9236 * ipr_halt - Issue shutdown prepare to all adapters
9237 *
9238 * Return value:
9239 * NOTIFY_OK on success / NOTIFY_DONE on failure
9240 **/
9241static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9242{
9243 struct ipr_cmnd *ipr_cmd;
9244 struct ipr_ioa_cfg *ioa_cfg;
9245 unsigned long flags = 0;
9246
9247 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9248 return NOTIFY_DONE;
9249
9250 spin_lock(&ipr_driver_lock);
9251
9252 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9253 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9254 if (!ioa_cfg->allow_cmds) {
9255 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9256 continue;
9257 }
9258
9259 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9260 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9261 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9262 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9263 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9264
9265 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9266 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9267 }
9268 spin_unlock(&ipr_driver_lock);
9269
9270 return NOTIFY_OK;
9271}
9272
9273static struct notifier_block ipr_notifier = {
9274 ipr_halt, NULL, 0
9275};
9276
1da177e4
LT		 9277/**
9278 * ipr_init - Module entry point
9279 *
9280 * Return value:
9281 * 0 on success / negative value on failure
9282 **/
9283static int __init ipr_init(void)
9284{
9285 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9286 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9287
f72919ec 9288 register_reboot_notifier(&ipr_notifier);
dcbccbde 9289 return pci_register_driver(&ipr_driver);
1da177e4
LT		 9290}
9291
9292/**
9293 * ipr_exit - Module unload
9294 *
9295 * Module unload entry point.
9296 *
9297 * Return value:
9298 * none
9299 **/
9300static void __exit ipr_exit(void)
9301{
f72919ec 9302 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 9303 pci_unregister_driver(&ipr_driver);
9304}
9305
9306module_init(ipr_init);
9307module_exit(ipr_exit);
Linux kernel - Deliverables
This page took 1.443446 seconds and 5 git commands to generate.