]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blame - drivers/scsi/ipr.c
projects / mirror_ubuntu-zesty-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
[SCSI] ipr: Return better qc_issue errors
[mirror_ubuntu-zesty-kernel.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>
62#include <linux/ioport.h>
63#include <linux/delay.h>
64#include <linux/pci.h>
65#include <linux/wait.h>
66#include <linux/spinlock.h>
67#include <linux/sched.h>
68#include <linux/interrupt.h>
69#include <linux/blkdev.h>
70#include <linux/firmware.h>
71#include <linux/module.h>
72#include <linux/moduleparam.h>
35a39691 73#include <linux/libata.h>
1da177e4
LT		 74#include <asm/io.h>
75#include <asm/irq.h>
76#include <asm/processor.h>
77#include <scsi/scsi.h>
78#include <scsi/scsi_host.h>
79#include <scsi/scsi_tcq.h>
80#include <scsi/scsi_eh.h>
81#include <scsi/scsi_cmnd.h>
1da177e4
LT		 82#include "ipr.h"
83
84/*
85 * Global Data
86 */
87static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head);
88static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
89static unsigned int ipr_max_speed = 1;
90static int ipr_testmode = 0;
91static unsigned int ipr_fastfail = 0;
5469cb5b 92static unsigned int ipr_transop_timeout = 0;
62275040 93static unsigned int ipr_enable_cache = 1;
d3c74871 94static unsigned int ipr_debug = 0;
1da177e4
LT		 95static DEFINE_SPINLOCK(ipr_driver_lock);
96
97/* This table describes the differences between DMA controller chips */
98static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 99 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4
LT		 100 .mailbox = 0x0042C,
101 .cache_line_size = 0x20,
102 {
103 .set_interrupt_mask_reg = 0x0022C,
104 .clr_interrupt_mask_reg = 0x00230,
105 .sense_interrupt_mask_reg = 0x0022C,
106 .clr_interrupt_reg = 0x00228,
107 .sense_interrupt_reg = 0x00224,
108 .ioarrin_reg = 0x00404,
109 .sense_uproc_interrupt_reg = 0x00214,
110 .set_uproc_interrupt_reg = 0x00214,
111 .clr_uproc_interrupt_reg = 0x00218
112 }
113 },
114 { /* Snipe and Scamp */
115 .mailbox = 0x0052C,
116 .cache_line_size = 0x20,
117 {
118 .set_interrupt_mask_reg = 0x00288,
119 .clr_interrupt_mask_reg = 0x0028C,
120 .sense_interrupt_mask_reg = 0x00288,
121 .clr_interrupt_reg = 0x00284,
122 .sense_interrupt_reg = 0x00280,
123 .ioarrin_reg = 0x00504,
124 .sense_uproc_interrupt_reg = 0x00290,
125 .set_uproc_interrupt_reg = 0x00290,
126 .clr_uproc_interrupt_reg = 0x00294
127 }
128 },
129};
130
131static const struct ipr_chip_t ipr_chip[] = {
132 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] },
133 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
86f51436
BK		 134 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] },
135 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] },
60e7486b 136 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] },
1da177e4
LT		 137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] },
138 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] }
139};
140
141static int ipr_max_bus_speeds [] = {
142 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
143};
144
145MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
146MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
147module_param_named(max_speed, ipr_max_speed, uint, 0);
148MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
149module_param_named(log_level, ipr_log_level, uint, 0);
150MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
151module_param_named(testmode, ipr_testmode, int, 0);
152MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
153module_param_named(fastfail, ipr_fastfail, int, 0);
154MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
155module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
156MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
62275040
BK		 157module_param_named(enable_cache, ipr_enable_cache, int, 0);
158MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)");
d3c74871
BK		 159module_param_named(debug, ipr_debug, int, 0);
160MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
1da177e4
LT		 161MODULE_LICENSE("GPL");
162MODULE_VERSION(IPR_DRIVER_VERSION);
163
1da177e4
LT		 164/* A constant array of IOASCs/URCs/Error Messages */
165static const
166struct ipr_error_table_t ipr_error_table[] = {
933916f3 167 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 168 "8155: An unknown error was received"},
169 {0x00330000, 0, 0,
170 "Soft underlength error"},
171 {0x005A0000, 0, 0,
172 "Command to be cancelled not found"},
173 {0x00808000, 0, 0,
174 "Qualified success"},
933916f3 175 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 176 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 177 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 178 "4101: Soft device bus fabric error"},
933916f3 179 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 180 "FFF9: Device sector reassign successful"},
933916f3 181 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 182 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 183 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 184 "7001: IOA sector reassignment successful"},
933916f3 185 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 186 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 187 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 188 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 189 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 190 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 191 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 192 "FFF6: Device hardware error recovered by the IOA"},
933916f3 193 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 194 "FFF6: Device hardware error recovered by the device"},
933916f3 195 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 196 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 197 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 198 "FFFA: Undefined device response recovered by the IOA"},
933916f3 199 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 200 "FFF6: Device bus error, message or command phase"},
933916f3 201 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 202 "FFFE: Task Management Function failed"},
933916f3 203 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 204 "FFF6: Failure prediction threshold exceeded"},
933916f3 205 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 206 "8009: Impending cache battery pack failure"},
207 {0x02040400, 0, 0,
208 "34FF: Disk device format in progress"},
209 {0x023F0000, 0, 0,
210 "Synchronization required"},
211 {0x024E0000, 0, 0,
212 "No ready, IOA shutdown"},
213 {0x025A0000, 0, 0,
214 "Not ready, IOA has been shutdown"},
933916f3 215 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 216 "3020: Storage subsystem configuration error"},
217 {0x03110B00, 0, 0,
218 "FFF5: Medium error, data unreadable, recommend reassign"},
219 {0x03110C00, 0, 0,
220 "7000: Medium error, data unreadable, do not reassign"},
933916f3 221 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 222 "FFF3: Disk media format bad"},
933916f3 223 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 224 "3002: Addressed device failed to respond to selection"},
933916f3 225 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 226 "3100: Device bus error"},
933916f3 227 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 228 "3109: IOA timed out a device command"},
229 {0x04088000, 0, 0,
230 "3120: SCSI bus is not operational"},
933916f3 231 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 232 "4100: Hard device bus fabric error"},
933916f3 233 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 234 "9000: IOA reserved area data check"},
933916f3 235 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 236 "9001: IOA reserved area invalid data pattern"},
933916f3 237 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 238 "9002: IOA reserved area LRC error"},
933916f3 239 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 240 "102E: Out of alternate sectors for disk storage"},
933916f3 241 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 242 "FFF4: Data transfer underlength error"},
933916f3 243 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 244 "FFF4: Data transfer overlength error"},
933916f3 245 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 246 "3400: Logical unit failure"},
933916f3 247 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 248 "FFF4: Device microcode is corrupt"},
933916f3 249 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 250 "8150: PCI bus error"},
251 {0x04430000, 1, 0,
252 "Unsupported device bus message received"},
933916f3 253 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 254 "FFF4: Disk device problem"},
933916f3 255 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 256 "8150: Permanent IOA failure"},
933916f3 257 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 258 "3010: Disk device returned wrong response to IOA"},
933916f3 259 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 260 "8151: IOA microcode error"},
261 {0x04448500, 0, 0,
262 "Device bus status error"},
933916f3 263 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 264 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 265 {0x04448700, 0, 0,
266 "ATA device status error"},
1da177e4
LT		 267 {0x04490000, 0, 0,
268 "Message reject received from the device"},
933916f3 269 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 270 "8008: A permanent cache battery pack failure occurred"},
933916f3 271 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 272 "9090: Disk unit has been modified after the last known status"},
933916f3 273 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 274 "9081: IOA detected device error"},
933916f3 275 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 276 "9082: IOA detected device error"},
933916f3 277 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 278 "3110: Device bus error, message or command phase"},
933916f3 279 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 280 "3110: SAS Command / Task Management Function failed"},
933916f3 281 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 282 "9091: Incorrect hardware configuration change has been detected"},
933916f3 283 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 284 "9073: Invalid multi-adapter configuration"},
933916f3 285 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 286 "4010: Incorrect connection between cascaded expanders"},
933916f3 287 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 288 "4020: Connections exceed IOA design limits"},
933916f3 289 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 290 "4030: Incorrect multipath connection"},
933916f3 291 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 292 "4110: Unsupported enclosure function"},
933916f3 293 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 294 "FFF4: Command to logical unit failed"},
295 {0x05240000, 1, 0,
296 "Illegal request, invalid request type or request packet"},
297 {0x05250000, 0, 0,
298 "Illegal request, invalid resource handle"},
b0df54bb
BK		 299 {0x05258000, 0, 0,
300 "Illegal request, commands not allowed to this device"},
301 {0x05258100, 0, 0,
302 "Illegal request, command not allowed to a secondary adapter"},
1da177e4
LT		 303 {0x05260000, 0, 0,
304 "Illegal request, invalid field in parameter list"},
305 {0x05260100, 0, 0,
306 "Illegal request, parameter not supported"},
307 {0x05260200, 0, 0,
308 "Illegal request, parameter value invalid"},
309 {0x052C0000, 0, 0,
310 "Illegal request, command sequence error"},
b0df54bb
BK		 311 {0x052C8000, 1, 0,
312 "Illegal request, dual adapter support not enabled"},
933916f3 313 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 314 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 315 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 316 "9040: Array protection temporarily suspended, protection resuming"},
933916f3 317 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 318 "3140: Device bus not ready to ready transition"},
933916f3 319 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 320 "FFFB: SCSI bus was reset"},
321 {0x06290500, 0, 0,
322 "FFFE: SCSI bus transition to single ended"},
323 {0x06290600, 0, 0,
324 "FFFE: SCSI bus transition to LVD"},
933916f3 325 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 326 "FFFB: SCSI bus was reset by another initiator"},
933916f3 327 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 328 "3029: A device replacement has occurred"},
933916f3 329 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 330 "9051: IOA cache data exists for a missing or failed device"},
933916f3 331 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 332 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 333 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 334 "9025: Disk unit is not supported at its physical location"},
933916f3 335 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 336 "3020: IOA detected a SCSI bus configuration error"},
933916f3 337 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 338 "3150: SCSI bus configuration error"},
933916f3 339 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 340 "9074: Asymmetric advanced function disk configuration"},
933916f3 341 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 342 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 343 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 344 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 345 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 346 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 347 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 348 "9076: Configuration error, missing remote IOA"},
933916f3 349 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 350 "4050: Enclosure does not support a required multipath function"},
933916f3 351 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 352 "9041: Array protection temporarily suspended"},
933916f3 353 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 354 "9042: Corrupt array parity detected on specified device"},
933916f3 355 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 356 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 357 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 358 "9071: Link operational transition"},
933916f3 359 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 360 "9072: Link not operational transition"},
933916f3 361 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 362 "9032: Array exposed but still protected"},
e435340c
BK		 363 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
364 "70DD: Device forced failed by disrupt device command"},
933916f3 365 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 366 "4061: Multipath redundancy level got better"},
933916f3 367 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 368 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 369 {0x07270000, 0, 0,
370 "Failure due to other device"},
933916f3 371 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 372 "9008: IOA does not support functions expected by devices"},
933916f3 373 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 374 "9010: Cache data associated with attached devices cannot be found"},
933916f3 375 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 376 "9011: Cache data belongs to devices other than those attached"},
933916f3 377 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 378 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 379 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 380 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 381 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 382 "9022: Exposed array is missing a required device"},
933916f3 383 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 384 "9023: Array member(s) not at required physical locations"},
933916f3 385 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 386 "9024: Array not functional due to present hardware configuration"},
933916f3 387 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 388 "9026: Array not functional due to present hardware configuration"},
933916f3 389 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 390 "9027: Array is missing a device and parity is out of sync"},
933916f3 391 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 392 "9028: Maximum number of arrays already exist"},
933916f3 393 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 394 "9050: Required cache data cannot be located for a disk unit"},
933916f3 395 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 396 "9052: Cache data exists for a device that has been modified"},
933916f3 397 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 398 "9054: IOA resources not available due to previous problems"},
933916f3 399 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 400 "9092: Disk unit requires initialization before use"},
933916f3 401 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 402 "9029: Incorrect hardware configuration change has been detected"},
933916f3 403 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 404 "9060: One or more disk pairs are missing from an array"},
933916f3 405 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 406 "9061: One or more disks are missing from an array"},
933916f3 407 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 408 "9062: One or more disks are missing from an array"},
933916f3 409 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 410 "9063: Maximum number of functional arrays has been exceeded"},
411 {0x0B260000, 0, 0,
412 "Aborted command, invalid descriptor"},
413 {0x0B5A0000, 0, 0,
414 "Command terminated by host"}
415};
416
417static const struct ipr_ses_table_entry ipr_ses_table[] = {
418 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
419 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
420 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
421 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
422 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
423 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
424 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
425 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
426 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
427 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
428 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
429 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
430 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
431};
432
433/*
434 * Function Prototypes
435 */
436static int ipr_reset_alert(struct ipr_cmnd *);
437static void ipr_process_ccn(struct ipr_cmnd *);
438static void ipr_process_error(struct ipr_cmnd *);
439static void ipr_reset_ioa_job(struct ipr_cmnd *);
440static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
441 enum ipr_shutdown_type);
442
443#ifdef CONFIG_SCSI_IPR_TRACE
444/**
445 * ipr_trc_hook - Add a trace entry to the driver trace
446 * @ipr_cmd: ipr command struct
447 * @type: trace type
448 * @add_data: additional data
449 *
450 * Return value:
451 * none
452 **/
453static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
454 u8 type, u32 add_data)
455{
456 struct ipr_trace_entry *trace_entry;
457 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
458
459 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
460 trace_entry->time = jiffies;
461 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
462 trace_entry->type = type;
35a39691
BK		 463 trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command;
464 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 465 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
466 trace_entry->u.add_data = add_data;
467}
468#else
469#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
470#endif
471
472/**
473 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
474 * @ipr_cmd: ipr command struct
475 *
476 * Return value:
477 * none
478 **/
479static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
480{
481 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
482 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
483
484 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
485 ioarcb->write_data_transfer_length = 0;
486 ioarcb->read_data_transfer_length = 0;
487 ioarcb->write_ioadl_len = 0;
488 ioarcb->read_ioadl_len = 0;
489 ioasa->ioasc = 0;
490 ioasa->residual_data_len = 0;
35a39691 491 ioasa->u.gata.status = 0;
1da177e4
LT		 492
493 ipr_cmd->scsi_cmd = NULL;
35a39691 494 ipr_cmd->qc = NULL;
1da177e4
LT		 495 ipr_cmd->sense_buffer[0] = 0;
496 ipr_cmd->dma_use_sg = 0;
497}
498
499/**
500 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
501 * @ipr_cmd: ipr command struct
502 *
503 * Return value:
504 * none
505 **/
506static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
507{
508 ipr_reinit_ipr_cmnd(ipr_cmd);
509 ipr_cmd->u.scratch = 0;
510 ipr_cmd->sibling = NULL;
511 init_timer(&ipr_cmd->timer);
512}
513
514/**
515 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
516 * @ioa_cfg: ioa config struct
517 *
518 * Return value:
519 * pointer to ipr command struct
520 **/
521static
522struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
523{
524 struct ipr_cmnd *ipr_cmd;
525
526 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
527 list_del(&ipr_cmd->queue);
528 ipr_init_ipr_cmnd(ipr_cmd);
529
530 return ipr_cmd;
531}
532
533/**
534 * ipr_unmap_sglist - Unmap scatterlist if mapped
535 * @ioa_cfg: ioa config struct
536 * @ipr_cmd: ipr command struct
537 *
538 * Return value:
539 * nothing
540 **/
541static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg,
542 struct ipr_cmnd *ipr_cmd)
543{
544 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
545
546 if (ipr_cmd->dma_use_sg) {
547 if (scsi_cmd->use_sg > 0) {
548 pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer,
549 scsi_cmd->use_sg,
550 scsi_cmd->sc_data_direction);
551 } else {
552 pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle,
553 scsi_cmd->request_bufflen,
554 scsi_cmd->sc_data_direction);
555 }
556 }
557}
558
559/**
560 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
561 * @ioa_cfg: ioa config struct
562 * @clr_ints: interrupts to clear
563 *
564 * This function masks all interrupts on the adapter, then clears the
565 * interrupts specified in the mask
566 *
567 * Return value:
568 * none
569 **/
570static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
571 u32 clr_ints)
572{
573 volatile u32 int_reg;
574
575 /* Stop new interrupts */
576 ioa_cfg->allow_interrupts = 0;
577
578 /* Set interrupt mask to stop all new interrupts */
579 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
580
581 /* Clear any pending interrupts */
582 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg);
583 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
584}
585
586/**
587 * ipr_save_pcix_cmd_reg - Save PCI-X command register
588 * @ioa_cfg: ioa config struct
589 *
590 * Return value:
591 * 0 on success / -EIO on failure
592 **/
593static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
594{
595 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
596
7dce0e1c
BK		 597 if (pcix_cmd_reg == 0)
598 return 0;
1da177e4
LT		 599
600 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
601 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
602 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
603 return -EIO;
604 }
605
606 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
607 return 0;
608}
609
610/**
611 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
612 * @ioa_cfg: ioa config struct
613 *
614 * Return value:
615 * 0 on success / -EIO on failure
616 **/
617static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
618{
619 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
620
621 if (pcix_cmd_reg) {
622 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
623 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
624 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
625 return -EIO;
626 }
1da177e4
LT		 627 }
628
629 return 0;
630}
631
35a39691
BK		 632/**
633 * ipr_sata_eh_done - done function for aborted SATA commands
634 * @ipr_cmd: ipr command struct
635 *
636 * This function is invoked for ops generated to SATA
637 * devices which are being aborted.
638 *
639 * Return value:
640 * none
641 **/
642static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
643{
644 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
645 struct ata_queued_cmd *qc = ipr_cmd->qc;
646 struct ipr_sata_port *sata_port = qc->ap->private_data;
647
648 qc->err_mask |= AC_ERR_OTHER;
649 sata_port->ioasa.status |= ATA_BUSY;
650 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
651 ata_qc_complete(qc);
652}
653
1da177e4
LT		 654/**
655 * ipr_scsi_eh_done - mid-layer done function for aborted ops
656 * @ipr_cmd: ipr command struct
657 *
658 * This function is invoked by the interrupt handler for
659 * ops generated by the SCSI mid-layer which are being aborted.
660 *
661 * Return value:
662 * none
663 **/
664static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
665{
666 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
667 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
668
669 scsi_cmd->result |= (DID_ERROR << 16);
670
671 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
672 scsi_cmd->scsi_done(scsi_cmd);
673 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
674}
675
676/**
677 * ipr_fail_all_ops - Fails all outstanding ops.
678 * @ioa_cfg: ioa config struct
679 *
680 * This function fails all outstanding ops.
681 *
682 * Return value:
683 * none
684 **/
685static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
686{
687 struct ipr_cmnd *ipr_cmd, *temp;
688
689 ENTER;
690 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
691 list_del(&ipr_cmd->queue);
692
693 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
694 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
695
696 if (ipr_cmd->scsi_cmd)
697 ipr_cmd->done = ipr_scsi_eh_done;
35a39691
BK		 698 else if (ipr_cmd->qc)
699 ipr_cmd->done = ipr_sata_eh_done;
1da177e4
LT		 700
701 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
702 del_timer(&ipr_cmd->timer);
703 ipr_cmd->done(ipr_cmd);
704 }
705
706 LEAVE;
707}
708
709/**
710 * ipr_do_req - Send driver initiated requests.
711 * @ipr_cmd: ipr command struct
712 * @done: done function
713 * @timeout_func: timeout function
714 * @timeout: timeout value
715 *
716 * This function sends the specified command to the adapter with the
717 * timeout given. The done function is invoked on command completion.
718 *
719 * Return value:
720 * none
721 **/
722static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
723 void (*done) (struct ipr_cmnd *),
724 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
725{
726 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
727
728 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
729
730 ipr_cmd->done = done;
731
732 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
733 ipr_cmd->timer.expires = jiffies + timeout;
734 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
735
736 add_timer(&ipr_cmd->timer);
737
738 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
739
740 mb();
741 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
742 ioa_cfg->regs.ioarrin_reg);
743}
744
745/**
746 * ipr_internal_cmd_done - Op done function for an internally generated op.
747 * @ipr_cmd: ipr command struct
748 *
749 * This function is the op done function for an internally generated,
750 * blocking op. It simply wakes the sleeping thread.
751 *
752 * Return value:
753 * none
754 **/
755static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
756{
757 if (ipr_cmd->sibling)
758 ipr_cmd->sibling = NULL;
759 else
760 complete(&ipr_cmd->completion);
761}
762
763/**
764 * ipr_send_blocking_cmd - Send command and sleep on its completion.
765 * @ipr_cmd: ipr command struct
766 * @timeout_func: function to invoke if command times out
767 * @timeout: timeout
768 *
769 * Return value:
770 * none
771 **/
772static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
773 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
774 u32 timeout)
775{
776 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
777
778 init_completion(&ipr_cmd->completion);
779 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
780
781 spin_unlock_irq(ioa_cfg->host->host_lock);
782 wait_for_completion(&ipr_cmd->completion);
783 spin_lock_irq(ioa_cfg->host->host_lock);
784}
785
786/**
787 * ipr_send_hcam - Send an HCAM to the adapter.
788 * @ioa_cfg: ioa config struct
789 * @type: HCAM type
790 * @hostrcb: hostrcb struct
791 *
792 * This function will send a Host Controlled Async command to the adapter.
793 * If HCAMs are currently not allowed to be issued to the adapter, it will
794 * place the hostrcb on the free queue.
795 *
796 * Return value:
797 * none
798 **/
799static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
800 struct ipr_hostrcb *hostrcb)
801{
802 struct ipr_cmnd *ipr_cmd;
803 struct ipr_ioarcb *ioarcb;
804
805 if (ioa_cfg->allow_cmds) {
806 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
807 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
808 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
809
810 ipr_cmd->u.hostrcb = hostrcb;
811 ioarcb = &ipr_cmd->ioarcb;
812
813 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
814 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
815 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
816 ioarcb->cmd_pkt.cdb[1] = type;
817 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
818 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
819
820 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam));
821 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
822 ipr_cmd->ioadl[0].flags_and_data_len =
823 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam));
824 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma);
825
826 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
827 ipr_cmd->done = ipr_process_ccn;
828 else
829 ipr_cmd->done = ipr_process_error;
830
831 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
832
833 mb();
834 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
835 ioa_cfg->regs.ioarrin_reg);
836 } else {
837 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
838 }
839}
840
841/**
842 * ipr_init_res_entry - Initialize a resource entry struct.
843 * @res: resource entry struct
844 *
845 * Return value:
846 * none
847 **/
848static void ipr_init_res_entry(struct ipr_resource_entry *res)
849{
ee0a90fa 850 res->needs_sync_complete = 0;
1da177e4
LT		 851 res->in_erp = 0;
852 res->add_to_ml = 0;
853 res->del_from_ml = 0;
854 res->resetting_device = 0;
855 res->sdev = NULL;
35a39691 856 res->sata_port = NULL;
1da177e4
LT		 857}
858
859/**
860 * ipr_handle_config_change - Handle a config change from the adapter
861 * @ioa_cfg: ioa config struct
862 * @hostrcb: hostrcb
863 *
864 * Return value:
865 * none
866 **/
867static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
868 struct ipr_hostrcb *hostrcb)
869{
870 struct ipr_resource_entry *res = NULL;
871 struct ipr_config_table_entry *cfgte;
872 u32 is_ndn = 1;
873
874 cfgte = &hostrcb->hcam.u.ccn.cfgte;
875
876 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
877 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr,
878 sizeof(cfgte->res_addr))) {
879 is_ndn = 0;
880 break;
881 }
882 }
883
884 if (is_ndn) {
885 if (list_empty(&ioa_cfg->free_res_q)) {
886 ipr_send_hcam(ioa_cfg,
887 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
888 hostrcb);
889 return;
890 }
891
892 res = list_entry(ioa_cfg->free_res_q.next,
893 struct ipr_resource_entry, queue);
894
895 list_del(&res->queue);
896 ipr_init_res_entry(res);
897 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
898 }
899
900 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
901
902 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
903 if (res->sdev) {
1da177e4 904 res->del_from_ml = 1;
1121b794 905 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 906 if (ioa_cfg->allow_ml_add_del)
907 schedule_work(&ioa_cfg->work_q);
908 } else
909 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
910 } else if (!res->sdev) {
911 res->add_to_ml = 1;
912 if (ioa_cfg->allow_ml_add_del)
913 schedule_work(&ioa_cfg->work_q);
914 }
915
916 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
917}
918
919/**
920 * ipr_process_ccn - Op done function for a CCN.
921 * @ipr_cmd: ipr command struct
922 *
923 * This function is the op done function for a configuration
924 * change notification host controlled async from the adapter.
925 *
926 * Return value:
927 * none
928 **/
929static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
930{
931 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
932 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
933 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
934
935 list_del(&hostrcb->queue);
936 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
937
938 if (ioasc) {
939 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
940 dev_err(&ioa_cfg->pdev->dev,
941 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
942
943 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
944 } else {
945 ipr_handle_config_change(ioa_cfg, hostrcb);
946 }
947}
948
949/**
950 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 951 * @vpd: vendor/product id/sn struct
1da177e4
LT		 952 *
953 * Return value:
954 * none
955 **/
cfc32139 956static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 957{
958 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
959 + IPR_SERIAL_NUM_LEN];
960
cfc32139
BK		 961 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
962 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 963 IPR_PROD_ID_LEN);
964 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
965 ipr_err("Vendor/Product ID: %s\n", buffer);
966
cfc32139 967 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 968 buffer[IPR_SERIAL_NUM_LEN] = '\0';
969 ipr_err(" Serial Number: %s\n", buffer);
970}
971
ee0f05b8
BK		 972/**
973 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
974 * @vpd: vendor/product id/sn/wwn struct
975 *
976 * Return value:
977 * none
978 **/
979static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
980{
981 ipr_log_vpd(&vpd->vpd);
982 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
983 be32_to_cpu(vpd->wwid[1]));
984}
985
986/**
987 * ipr_log_enhanced_cache_error - Log a cache error.
988 * @ioa_cfg: ioa config struct
989 * @hostrcb: hostrcb struct
990 *
991 * Return value:
992 * none
993 **/
994static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
995 struct ipr_hostrcb *hostrcb)
996{
997 struct ipr_hostrcb_type_12_error *error =
998 &hostrcb->hcam.u.error.u.type_12_error;
999
1000 ipr_err("-----Current Configuration-----\n");
1001 ipr_err("Cache Directory Card Information:\n");
1002 ipr_log_ext_vpd(&error->ioa_vpd);
1003 ipr_err("Adapter Card Information:\n");
1004 ipr_log_ext_vpd(&error->cfc_vpd);
1005
1006 ipr_err("-----Expected Configuration-----\n");
1007 ipr_err("Cache Directory Card Information:\n");
1008 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1009 ipr_err("Adapter Card Information:\n");
1010 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1011
1012 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1013 be32_to_cpu(error->ioa_data[0]),
1014 be32_to_cpu(error->ioa_data[1]),
1015 be32_to_cpu(error->ioa_data[2]));
1016}
1017
1da177e4
LT		 1018/**
1019 * ipr_log_cache_error - Log a cache error.
1020 * @ioa_cfg: ioa config struct
1021 * @hostrcb: hostrcb struct
1022 *
1023 * Return value:
1024 * none
1025 **/
1026static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1027 struct ipr_hostrcb *hostrcb)
1028{
1029 struct ipr_hostrcb_type_02_error *error =
1030 &hostrcb->hcam.u.error.u.type_02_error;
1031
1032 ipr_err("-----Current Configuration-----\n");
1033 ipr_err("Cache Directory Card Information:\n");
cfc32139 1034 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1035 ipr_err("Adapter Card Information:\n");
cfc32139 1036 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1037
1038 ipr_err("-----Expected Configuration-----\n");
1039 ipr_err("Cache Directory Card Information:\n");
cfc32139 1040 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1041 ipr_err("Adapter Card Information:\n");
cfc32139 1042 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1043
1044 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1045 be32_to_cpu(error->ioa_data[0]),
1046 be32_to_cpu(error->ioa_data[1]),
1047 be32_to_cpu(error->ioa_data[2]));
1048}
1049
ee0f05b8
BK		 1050/**
1051 * ipr_log_enhanced_config_error - Log a configuration error.
1052 * @ioa_cfg: ioa config struct
1053 * @hostrcb: hostrcb struct
1054 *
1055 * Return value:
1056 * none
1057 **/
1058static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1059 struct ipr_hostrcb *hostrcb)
1060{
1061 int errors_logged, i;
1062 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1063 struct ipr_hostrcb_type_13_error *error;
1064
1065 error = &hostrcb->hcam.u.error.u.type_13_error;
1066 errors_logged = be32_to_cpu(error->errors_logged);
1067
1068 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1069 be32_to_cpu(error->errors_detected), errors_logged);
1070
1071 dev_entry = error->dev;
1072
1073 for (i = 0; i < errors_logged; i++, dev_entry++) {
1074 ipr_err_separator;
1075
1076 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1077 ipr_log_ext_vpd(&dev_entry->vpd);
1078
1079 ipr_err("-----New Device Information-----\n");
1080 ipr_log_ext_vpd(&dev_entry->new_vpd);
1081
1082 ipr_err("Cache Directory Card Information:\n");
1083 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1084
1085 ipr_err("Adapter Card Information:\n");
1086 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1087 }
1088}
1089
1da177e4
LT		 1090/**
1091 * ipr_log_config_error - Log a configuration error.
1092 * @ioa_cfg: ioa config struct
1093 * @hostrcb: hostrcb struct
1094 *
1095 * Return value:
1096 * none
1097 **/
1098static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1099 struct ipr_hostrcb *hostrcb)
1100{
1101 int errors_logged, i;
1102 struct ipr_hostrcb_device_data_entry *dev_entry;
1103 struct ipr_hostrcb_type_03_error *error;
1104
1105 error = &hostrcb->hcam.u.error.u.type_03_error;
1106 errors_logged = be32_to_cpu(error->errors_logged);
1107
1108 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1109 be32_to_cpu(error->errors_detected), errors_logged);
1110
cfc32139 1111 dev_entry = error->dev;
1da177e4
LT		 1112
1113 for (i = 0; i < errors_logged; i++, dev_entry++) {
1114 ipr_err_separator;
1115
fa15b1f6 1116 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1117 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1118
1119 ipr_err("-----New Device Information-----\n");
cfc32139 1120 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1121
1122 ipr_err("Cache Directory Card Information:\n");
cfc32139 1123 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1124
1125 ipr_err("Adapter Card Information:\n");
cfc32139 1126 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1127
1128 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1129 be32_to_cpu(dev_entry->ioa_data[0]),
1130 be32_to_cpu(dev_entry->ioa_data[1]),
1131 be32_to_cpu(dev_entry->ioa_data[2]),
1132 be32_to_cpu(dev_entry->ioa_data[3]),
1133 be32_to_cpu(dev_entry->ioa_data[4]));
1134 }
1135}
1136
ee0f05b8
BK		 1137/**
1138 * ipr_log_enhanced_array_error - Log an array configuration error.
1139 * @ioa_cfg: ioa config struct
1140 * @hostrcb: hostrcb struct
1141 *
1142 * Return value:
1143 * none
1144 **/
1145static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1146 struct ipr_hostrcb *hostrcb)
1147{
1148 int i, num_entries;
1149 struct ipr_hostrcb_type_14_error *error;
1150 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1151 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1152
1153 error = &hostrcb->hcam.u.error.u.type_14_error;
1154
1155 ipr_err_separator;
1156
1157 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1158 error->protection_level,
1159 ioa_cfg->host->host_no,
1160 error->last_func_vset_res_addr.bus,
1161 error->last_func_vset_res_addr.target,
1162 error->last_func_vset_res_addr.lun);
1163
1164 ipr_err_separator;
1165
1166 array_entry = error->array_member;
1167 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1168 sizeof(error->array_member));
1169
1170 for (i = 0; i < num_entries; i++, array_entry++) {
1171 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1172 continue;
1173
1174 if (be32_to_cpu(error->exposed_mode_adn) == i)
1175 ipr_err("Exposed Array Member %d:\n", i);
1176 else
1177 ipr_err("Array Member %d:\n", i);
1178
1179 ipr_log_ext_vpd(&array_entry->vpd);
1180 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1181 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1182 "Expected Location");
1183
1184 ipr_err_separator;
1185 }
1186}
1187
1da177e4
LT		 1188/**
1189 * ipr_log_array_error - Log an array configuration error.
1190 * @ioa_cfg: ioa config struct
1191 * @hostrcb: hostrcb struct
1192 *
1193 * Return value:
1194 * none
1195 **/
1196static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1197 struct ipr_hostrcb *hostrcb)
1198{
1199 int i;
1200 struct ipr_hostrcb_type_04_error *error;
1201 struct ipr_hostrcb_array_data_entry *array_entry;
1202 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1203
1204 error = &hostrcb->hcam.u.error.u.type_04_error;
1205
1206 ipr_err_separator;
1207
1208 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1209 error->protection_level,
1210 ioa_cfg->host->host_no,
1211 error->last_func_vset_res_addr.bus,
1212 error->last_func_vset_res_addr.target,
1213 error->last_func_vset_res_addr.lun);
1214
1215 ipr_err_separator;
1216
1217 array_entry = error->array_member;
1218
1219 for (i = 0; i < 18; i++) {
cfc32139 1220 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1221 continue;
1222
fa15b1f6 1223 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1224 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1225 else
1da177e4 1226 ipr_err("Array Member %d:\n", i);
1da177e4 1227
cfc32139 1228 ipr_log_vpd(&array_entry->vpd);
1da177e4 1229
fa15b1f6
BK		 1230 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1231 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1232 "Expected Location");
1da177e4
LT		 1233
1234 ipr_err_separator;
1235
1236 if (i == 9)
1237 array_entry = error->array_member2;
1238 else
1239 array_entry++;
1240 }
1241}
1242
1243/**
b0df54bb 1244 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1245 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1246 * @data: IOA error data
1247 * @len: data length
1da177e4
LT		 1248 *
1249 * Return value:
1250 * none
1251 **/
ac719aba 1252static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1253{
1254 int i;
1da177e4 1255
b0df54bb 1256 if (len == 0)
1da177e4
LT		 1257 return;
1258
ac719aba
BK		 1259 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1260 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1261
b0df54bb 1262 for (i = 0; i < len / 4; i += 4) {
1da177e4 1263 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1264 be32_to_cpu(data[i]),
1265 be32_to_cpu(data[i+1]),
1266 be32_to_cpu(data[i+2]),
1267 be32_to_cpu(data[i+3]));
1da177e4
LT		 1268 }
1269}
1270
ee0f05b8
BK		 1271/**
1272 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1273 * @ioa_cfg: ioa config struct
1274 * @hostrcb: hostrcb struct
1275 *
1276 * Return value:
1277 * none
1278 **/
1279static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1280 struct ipr_hostrcb *hostrcb)
1281{
1282 struct ipr_hostrcb_type_17_error *error;
1283
1284 error = &hostrcb->hcam.u.error.u.type_17_error;
1285 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1286
1287 ipr_err("%s\n", error->failure_reason);
1288 ipr_err("Remote Adapter VPD:\n");
1289 ipr_log_ext_vpd(&error->vpd);
ac719aba 1290 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1291 be32_to_cpu(hostrcb->hcam.length) -
1292 (offsetof(struct ipr_hostrcb_error, u) +
1293 offsetof(struct ipr_hostrcb_type_17_error, data)));
1294}
1295
b0df54bb
BK		 1296/**
1297 * ipr_log_dual_ioa_error - Log a dual adapter error.
1298 * @ioa_cfg: ioa config struct
1299 * @hostrcb: hostrcb struct
1300 *
1301 * Return value:
1302 * none
1303 **/
1304static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1305 struct ipr_hostrcb *hostrcb)
1306{
1307 struct ipr_hostrcb_type_07_error *error;
1308
1309 error = &hostrcb->hcam.u.error.u.type_07_error;
1310 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1311
1312 ipr_err("%s\n", error->failure_reason);
1313 ipr_err("Remote Adapter VPD:\n");
1314 ipr_log_vpd(&error->vpd);
ac719aba 1315 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1316 be32_to_cpu(hostrcb->hcam.length) -
1317 (offsetof(struct ipr_hostrcb_error, u) +
1318 offsetof(struct ipr_hostrcb_type_07_error, data)));
1319}
1320
49dc6a18
BK		 1321static const struct {
1322 u8 active;
1323 char *desc;
1324} path_active_desc[] = {
1325 { IPR_PATH_NO_INFO, "Path" },
1326 { IPR_PATH_ACTIVE, "Active path" },
1327 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1328};
1329
1330static const struct {
1331 u8 state;
1332 char *desc;
1333} path_state_desc[] = {
1334 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1335 { IPR_PATH_HEALTHY, "is healthy" },
1336 { IPR_PATH_DEGRADED, "is degraded" },
1337 { IPR_PATH_FAILED, "is failed" }
1338};
1339
1340/**
1341 * ipr_log_fabric_path - Log a fabric path error
1342 * @hostrcb: hostrcb struct
1343 * @fabric: fabric descriptor
1344 *
1345 * Return value:
1346 * none
1347 **/
1348static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1349 struct ipr_hostrcb_fabric_desc *fabric)
1350{
1351 int i, j;
1352 u8 path_state = fabric->path_state;
1353 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1354 u8 state = path_state & IPR_PATH_STATE_MASK;
1355
1356 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1357 if (path_active_desc[i].active != active)
1358 continue;
1359
1360 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1361 if (path_state_desc[j].state != state)
1362 continue;
1363
1364 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1365 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1366 path_active_desc[i].desc, path_state_desc[j].desc,
1367 fabric->ioa_port);
1368 } else if (fabric->cascaded_expander == 0xff) {
1369 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1370 path_active_desc[i].desc, path_state_desc[j].desc,
1371 fabric->ioa_port, fabric->phy);
1372 } else if (fabric->phy == 0xff) {
1373 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1374 path_active_desc[i].desc, path_state_desc[j].desc,
1375 fabric->ioa_port, fabric->cascaded_expander);
1376 } else {
1377 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1378 path_active_desc[i].desc, path_state_desc[j].desc,
1379 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1380 }
1381 return;
1382 }
1383 }
1384
1385 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1386 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1387}
1388
1389static const struct {
1390 u8 type;
1391 char *desc;
1392} path_type_desc[] = {
1393 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1394 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1395 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1396 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1397};
1398
1399static const struct {
1400 u8 status;
1401 char *desc;
1402} path_status_desc[] = {
1403 { IPR_PATH_CFG_NO_PROB, "Functional" },
1404 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1405 { IPR_PATH_CFG_FAILED, "Failed" },
1406 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1407 { IPR_PATH_NOT_DETECTED, "Missing" },
1408 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1409};
1410
1411static const char *link_rate[] = {
1412 "unknown",
1413 "disabled",
1414 "phy reset problem",
1415 "spinup hold",
1416 "port selector",
1417 "unknown",
1418 "unknown",
1419 "unknown",
1420 "1.5Gbps",
1421 "3.0Gbps",
1422 "unknown",
1423 "unknown",
1424 "unknown",
1425 "unknown",
1426 "unknown",
1427 "unknown"
1428};
1429
1430/**
1431 * ipr_log_path_elem - Log a fabric path element.
1432 * @hostrcb: hostrcb struct
1433 * @cfg: fabric path element struct
1434 *
1435 * Return value:
1436 * none
1437 **/
1438static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1439 struct ipr_hostrcb_config_element *cfg)
1440{
1441 int i, j;
1442 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1443 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1444
1445 if (type == IPR_PATH_CFG_NOT_EXIST)
1446 return;
1447
1448 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1449 if (path_type_desc[i].type != type)
1450 continue;
1451
1452 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
1453 if (path_status_desc[j].status != status)
1454 continue;
1455
1456 if (type == IPR_PATH_CFG_IOA_PORT) {
1457 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
1458 path_status_desc[j].desc, path_type_desc[i].desc,
1459 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1460 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1461 } else {
1462 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
1463 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
1464 path_status_desc[j].desc, path_type_desc[i].desc,
1465 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1466 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1467 } else if (cfg->cascaded_expander == 0xff) {
1468 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
1469 "WWN=%08X%08X\n", path_status_desc[j].desc,
1470 path_type_desc[i].desc, cfg->phy,
1471 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1472 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1473 } else if (cfg->phy == 0xff) {
1474 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
1475 "WWN=%08X%08X\n", path_status_desc[j].desc,
1476 path_type_desc[i].desc, cfg->cascaded_expander,
1477 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1478 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1479 } else {
1480 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
1481 "WWN=%08X%08X\n", path_status_desc[j].desc,
1482 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
1483 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1484 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1485 }
1486 }
1487 return;
1488 }
1489 }
1490
1491 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
1492 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
1493 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1494 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1495}
1496
1497/**
1498 * ipr_log_fabric_error - Log a fabric error.
1499 * @ioa_cfg: ioa config struct
1500 * @hostrcb: hostrcb struct
1501 *
1502 * Return value:
1503 * none
1504 **/
1505static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
1506 struct ipr_hostrcb *hostrcb)
1507{
1508 struct ipr_hostrcb_type_20_error *error;
1509 struct ipr_hostrcb_fabric_desc *fabric;
1510 struct ipr_hostrcb_config_element *cfg;
1511 int i, add_len;
1512
1513 error = &hostrcb->hcam.u.error.u.type_20_error;
1514 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1515 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
1516
1517 add_len = be32_to_cpu(hostrcb->hcam.length) -
1518 (offsetof(struct ipr_hostrcb_error, u) +
1519 offsetof(struct ipr_hostrcb_type_20_error, desc));
1520
1521 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
1522 ipr_log_fabric_path(hostrcb, fabric);
1523 for_each_fabric_cfg(fabric, cfg)
1524 ipr_log_path_elem(hostrcb, cfg);
1525
1526 add_len -= be16_to_cpu(fabric->length);
1527 fabric = (struct ipr_hostrcb_fabric_desc *)
1528 ((unsigned long)fabric + be16_to_cpu(fabric->length));
1529 }
1530
ac719aba 1531 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 1532}
1533
b0df54bb
BK		 1534/**
1535 * ipr_log_generic_error - Log an adapter error.
1536 * @ioa_cfg: ioa config struct
1537 * @hostrcb: hostrcb struct
1538 *
1539 * Return value:
1540 * none
1541 **/
1542static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
1543 struct ipr_hostrcb *hostrcb)
1544{
ac719aba 1545 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 1546 be32_to_cpu(hostrcb->hcam.length));
1547}
1548
1da177e4
LT		 1549/**
1550 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
1551 * @ioasc: IOASC
1552 *
1553 * This function will return the index of into the ipr_error_table
1554 * for the specified IOASC. If the IOASC is not in the table,
1555 * 0 will be returned, which points to the entry used for unknown errors.
1556 *
1557 * Return value:
1558 * index into the ipr_error_table
1559 **/
1560static u32 ipr_get_error(u32 ioasc)
1561{
1562 int i;
1563
1564 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 1565 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 1566 return i;
1567
1568 return 0;
1569}
1570
1571/**
1572 * ipr_handle_log_data - Log an adapter error.
1573 * @ioa_cfg: ioa config struct
1574 * @hostrcb: hostrcb struct
1575 *
1576 * This function logs an adapter error to the system.
1577 *
1578 * Return value:
1579 * none
1580 **/
1581static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
1582 struct ipr_hostrcb *hostrcb)
1583{
1584 u32 ioasc;
1585 int error_index;
1586
1587 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
1588 return;
1589
1590 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
1591 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
1592
1593 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1594
1595 if (ioasc == IPR_IOASC_BUS_WAS_RESET ||
1596 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) {
1597 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
1598 scsi_report_bus_reset(ioa_cfg->host,
1599 hostrcb->hcam.u.error.failing_dev_res_addr.bus);
1600 }
1601
1602 error_index = ipr_get_error(ioasc);
1603
1604 if (!ipr_error_table[error_index].log_hcam)
1605 return;
1606
49dc6a18 1607 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 1608
1609 /* Set indication we have logged an error */
1610 ioa_cfg->errors_logged++;
1611
933916f3 1612 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 1613 return;
cf852037
BK		 1614 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
1615 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 1616
1617 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 1618 case IPR_HOST_RCB_OVERLAY_ID_2:
1619 ipr_log_cache_error(ioa_cfg, hostrcb);
1620 break;
1621 case IPR_HOST_RCB_OVERLAY_ID_3:
1622 ipr_log_config_error(ioa_cfg, hostrcb);
1623 break;
1624 case IPR_HOST_RCB_OVERLAY_ID_4:
1625 case IPR_HOST_RCB_OVERLAY_ID_6:
1626 ipr_log_array_error(ioa_cfg, hostrcb);
1627 break;
b0df54bb
BK		 1628 case IPR_HOST_RCB_OVERLAY_ID_7:
1629 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
1630 break;
ee0f05b8
BK		 1631 case IPR_HOST_RCB_OVERLAY_ID_12:
1632 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
1633 break;
1634 case IPR_HOST_RCB_OVERLAY_ID_13:
1635 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
1636 break;
1637 case IPR_HOST_RCB_OVERLAY_ID_14:
1638 case IPR_HOST_RCB_OVERLAY_ID_16:
1639 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
1640 break;
1641 case IPR_HOST_RCB_OVERLAY_ID_17:
1642 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
1643 break;
49dc6a18
BK		 1644 case IPR_HOST_RCB_OVERLAY_ID_20:
1645 ipr_log_fabric_error(ioa_cfg, hostrcb);
1646 break;
cf852037 1647 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 1648 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 1649 default:
a9cfca96 1650 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 1651 break;
1652 }
1653}
1654
1655/**
1656 * ipr_process_error - Op done function for an adapter error log.
1657 * @ipr_cmd: ipr command struct
1658 *
1659 * This function is the op done function for an error log host
1660 * controlled async from the adapter. It will log the error and
1661 * send the HCAM back to the adapter.
1662 *
1663 * Return value:
1664 * none
1665 **/
1666static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
1667{
1668 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1669 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1670 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
1671
1672 list_del(&hostrcb->queue);
1673 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1674
1675 if (!ioasc) {
1676 ipr_handle_log_data(ioa_cfg, hostrcb);
1677 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
1678 dev_err(&ioa_cfg->pdev->dev,
1679 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1680 }
1681
1682 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
1683}
1684
1685/**
1686 * ipr_timeout - An internally generated op has timed out.
1687 * @ipr_cmd: ipr command struct
1688 *
1689 * This function blocks host requests and initiates an
1690 * adapter reset.
1691 *
1692 * Return value:
1693 * none
1694 **/
1695static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
1696{
1697 unsigned long lock_flags = 0;
1698 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1699
1700 ENTER;
1701 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1702
1703 ioa_cfg->errors_logged++;
1704 dev_err(&ioa_cfg->pdev->dev,
1705 "Adapter being reset due to command timeout.\n");
1706
1707 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1708 ioa_cfg->sdt_state = GET_DUMP;
1709
1710 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
1711 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1712
1713 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1714 LEAVE;
1715}
1716
1717/**
1718 * ipr_oper_timeout - Adapter timed out transitioning to operational
1719 * @ipr_cmd: ipr command struct
1720 *
1721 * This function blocks host requests and initiates an
1722 * adapter reset.
1723 *
1724 * Return value:
1725 * none
1726 **/
1727static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
1728{
1729 unsigned long lock_flags = 0;
1730 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1731
1732 ENTER;
1733 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1734
1735 ioa_cfg->errors_logged++;
1736 dev_err(&ioa_cfg->pdev->dev,
1737 "Adapter timed out transitioning to operational.\n");
1738
1739 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1740 ioa_cfg->sdt_state = GET_DUMP;
1741
1742 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
1743 if (ipr_fastfail)
1744 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
1745 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1746 }
1747
1748 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1749 LEAVE;
1750}
1751
1752/**
1753 * ipr_reset_reload - Reset/Reload the IOA
1754 * @ioa_cfg: ioa config struct
1755 * @shutdown_type: shutdown type
1756 *
1757 * This function resets the adapter and re-initializes it.
1758 * This function assumes that all new host commands have been stopped.
1759 * Return value:
1760 * SUCCESS / FAILED
1761 **/
1762static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
1763 enum ipr_shutdown_type shutdown_type)
1764{
1765 if (!ioa_cfg->in_reset_reload)
1766 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
1767
1768 spin_unlock_irq(ioa_cfg->host->host_lock);
1769 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
1770 spin_lock_irq(ioa_cfg->host->host_lock);
1771
1772 /* If we got hit with a host reset while we were already resetting
1773 the adapter for some reason, and the reset failed. */
1774 if (ioa_cfg->ioa_is_dead) {
1775 ipr_trace;
1776 return FAILED;
1777 }
1778
1779 return SUCCESS;
1780}
1781
1782/**
1783 * ipr_find_ses_entry - Find matching SES in SES table
1784 * @res: resource entry struct of SES
1785 *
1786 * Return value:
1787 * pointer to SES table entry / NULL on failure
1788 **/
1789static const struct ipr_ses_table_entry *
1790ipr_find_ses_entry(struct ipr_resource_entry *res)
1791{
1792 int i, j, matches;
1793 const struct ipr_ses_table_entry *ste = ipr_ses_table;
1794
1795 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
1796 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
1797 if (ste->compare_product_id_byte[j] == 'X') {
1798 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j])
1799 matches++;
1800 else
1801 break;
1802 } else
1803 matches++;
1804 }
1805
1806 if (matches == IPR_PROD_ID_LEN)
1807 return ste;
1808 }
1809
1810 return NULL;
1811}
1812
1813/**
1814 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
1815 * @ioa_cfg: ioa config struct
1816 * @bus: SCSI bus
1817 * @bus_width: bus width
1818 *
1819 * Return value:
1820 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
1821 * For a 2-byte wide SCSI bus, the maximum transfer speed is
1822 * twice the maximum transfer rate (e.g. for a wide enabled bus,
1823 * max 160MHz = max 320MB/sec).
1824 **/
1825static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
1826{
1827 struct ipr_resource_entry *res;
1828 const struct ipr_ses_table_entry *ste;
1829 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
1830
1831 /* Loop through each config table entry in the config table buffer */
1832 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1833 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data)))
1834 continue;
1835
1836 if (bus != res->cfgte.res_addr.bus)
1837 continue;
1838
1839 if (!(ste = ipr_find_ses_entry(res)))
1840 continue;
1841
1842 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
1843 }
1844
1845 return max_xfer_rate;
1846}
1847
1848/**
1849 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
1850 * @ioa_cfg: ioa config struct
1851 * @max_delay: max delay in micro-seconds to wait
1852 *
1853 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
1854 *
1855 * Return value:
1856 * 0 on success / other on failure
1857 **/
1858static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
1859{
1860 volatile u32 pcii_reg;
1861 int delay = 1;
1862
1863 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
1864 while (delay < max_delay) {
1865 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
1866
1867 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
1868 return 0;
1869
1870 /* udelay cannot be used if delay is more than a few milliseconds */
1871 if ((delay / 1000) > MAX_UDELAY_MS)
1872 mdelay(delay / 1000);
1873 else
1874 udelay(delay);
1875
1876 delay += delay;
1877 }
1878 return -EIO;
1879}
1880
1881/**
1882 * ipr_get_ldump_data_section - Dump IOA memory
1883 * @ioa_cfg: ioa config struct
1884 * @start_addr: adapter address to dump
1885 * @dest: destination kernel buffer
1886 * @length_in_words: length to dump in 4 byte words
1887 *
1888 * Return value:
1889 * 0 on success / -EIO on failure
1890 **/
1891static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
1892 u32 start_addr,
1893 __be32 *dest, u32 length_in_words)
1894{
1895 volatile u32 temp_pcii_reg;
1896 int i, delay = 0;
1897
1898 /* Write IOA interrupt reg starting LDUMP state */
1899 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
1900 ioa_cfg->regs.set_uproc_interrupt_reg);
1901
1902 /* Wait for IO debug acknowledge */
1903 if (ipr_wait_iodbg_ack(ioa_cfg,
1904 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
1905 dev_err(&ioa_cfg->pdev->dev,
1906 "IOA dump long data transfer timeout\n");
1907 return -EIO;
1908 }
1909
1910 /* Signal LDUMP interlocked - clear IO debug ack */
1911 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1912 ioa_cfg->regs.clr_interrupt_reg);
1913
1914 /* Write Mailbox with starting address */
1915 writel(start_addr, ioa_cfg->ioa_mailbox);
1916
1917 /* Signal address valid - clear IOA Reset alert */
1918 writel(IPR_UPROCI_RESET_ALERT,
1919 ioa_cfg->regs.clr_uproc_interrupt_reg);
1920
1921 for (i = 0; i < length_in_words; i++) {
1922 /* Wait for IO debug acknowledge */
1923 if (ipr_wait_iodbg_ack(ioa_cfg,
1924 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
1925 dev_err(&ioa_cfg->pdev->dev,
1926 "IOA dump short data transfer timeout\n");
1927 return -EIO;
1928 }
1929
1930 /* Read data from mailbox and increment destination pointer */
1931 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
1932 dest++;
1933
1934 /* For all but the last word of data, signal data received */
1935 if (i < (length_in_words - 1)) {
1936 /* Signal dump data received - Clear IO debug Ack */
1937 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1938 ioa_cfg->regs.clr_interrupt_reg);
1939 }
1940 }
1941
1942 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
1943 writel(IPR_UPROCI_RESET_ALERT,
1944 ioa_cfg->regs.set_uproc_interrupt_reg);
1945
1946 writel(IPR_UPROCI_IO_DEBUG_ALERT,
1947 ioa_cfg->regs.clr_uproc_interrupt_reg);
1948
1949 /* Signal dump data received - Clear IO debug Ack */
1950 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1951 ioa_cfg->regs.clr_interrupt_reg);
1952
1953 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
1954 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
1955 temp_pcii_reg =
1956 readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
1957
1958 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
1959 return 0;
1960
1961 udelay(10);
1962 delay += 10;
1963 }
1964
1965 return 0;
1966}
1967
1968#ifdef CONFIG_SCSI_IPR_DUMP
1969/**
1970 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
1971 * @ioa_cfg: ioa config struct
1972 * @pci_address: adapter address
1973 * @length: length of data to copy
1974 *
1975 * Copy data from PCI adapter to kernel buffer.
1976 * Note: length MUST be a 4 byte multiple
1977 * Return value:
1978 * 0 on success / other on failure
1979 **/
1980static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
1981 unsigned long pci_address, u32 length)
1982{
1983 int bytes_copied = 0;
1984 int cur_len, rc, rem_len, rem_page_len;
1985 __be32 *page;
1986 unsigned long lock_flags = 0;
1987 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
1988
1989 while (bytes_copied < length &&
1990 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
1991 if (ioa_dump->page_offset >= PAGE_SIZE ||
1992 ioa_dump->page_offset == 0) {
1993 page = (__be32 *)__get_free_page(GFP_ATOMIC);
1994
1995 if (!page) {
1996 ipr_trace;
1997 return bytes_copied;
1998 }
1999
2000 ioa_dump->page_offset = 0;
2001 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2002 ioa_dump->next_page_index++;
2003 } else
2004 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2005
2006 rem_len = length - bytes_copied;
2007 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2008 cur_len = min(rem_len, rem_page_len);
2009
2010 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2011 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2012 rc = -EIO;
2013 } else {
2014 rc = ipr_get_ldump_data_section(ioa_cfg,
2015 pci_address + bytes_copied,
2016 &page[ioa_dump->page_offset / 4],
2017 (cur_len / sizeof(u32)));
2018 }
2019 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2020
2021 if (!rc) {
2022 ioa_dump->page_offset += cur_len;
2023 bytes_copied += cur_len;
2024 } else {
2025 ipr_trace;
2026 break;
2027 }
2028 schedule();
2029 }
2030
2031 return bytes_copied;
2032}
2033
2034/**
2035 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2036 * @hdr: dump entry header struct
2037 *
2038 * Return value:
2039 * nothing
2040 **/
2041static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2042{
2043 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2044 hdr->num_elems = 1;
2045 hdr->offset = sizeof(*hdr);
2046 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2047}
2048
2049/**
2050 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2051 * @ioa_cfg: ioa config struct
2052 * @driver_dump: driver dump struct
2053 *
2054 * Return value:
2055 * nothing
2056 **/
2057static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2058 struct ipr_driver_dump *driver_dump)
2059{
2060 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2061
2062 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2063 driver_dump->ioa_type_entry.hdr.len =
2064 sizeof(struct ipr_dump_ioa_type_entry) -
2065 sizeof(struct ipr_dump_entry_header);
2066 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2067 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2068 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2069 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2070 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2071 ucode_vpd->minor_release[1];
2072 driver_dump->hdr.num_entries++;
2073}
2074
2075/**
2076 * ipr_dump_version_data - Fill in the driver version in the dump.
2077 * @ioa_cfg: ioa config struct
2078 * @driver_dump: driver dump struct
2079 *
2080 * Return value:
2081 * nothing
2082 **/
2083static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2084 struct ipr_driver_dump *driver_dump)
2085{
2086 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2087 driver_dump->version_entry.hdr.len =
2088 sizeof(struct ipr_dump_version_entry) -
2089 sizeof(struct ipr_dump_entry_header);
2090 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2091 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2092 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2093 driver_dump->hdr.num_entries++;
2094}
2095
2096/**
2097 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2098 * @ioa_cfg: ioa config struct
2099 * @driver_dump: driver dump struct
2100 *
2101 * Return value:
2102 * nothing
2103 **/
2104static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2105 struct ipr_driver_dump *driver_dump)
2106{
2107 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2108 driver_dump->trace_entry.hdr.len =
2109 sizeof(struct ipr_dump_trace_entry) -
2110 sizeof(struct ipr_dump_entry_header);
2111 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2112 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2113 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2114 driver_dump->hdr.num_entries++;
2115}
2116
2117/**
2118 * ipr_dump_location_data - Fill in the IOA location in the dump.
2119 * @ioa_cfg: ioa config struct
2120 * @driver_dump: driver dump struct
2121 *
2122 * Return value:
2123 * nothing
2124 **/
2125static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2126 struct ipr_driver_dump *driver_dump)
2127{
2128 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2129 driver_dump->location_entry.hdr.len =
2130 sizeof(struct ipr_dump_location_entry) -
2131 sizeof(struct ipr_dump_entry_header);
2132 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2133 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2134 strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id);
2135 driver_dump->hdr.num_entries++;
2136}
2137
2138/**
2139 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2140 * @ioa_cfg: ioa config struct
2141 * @dump: dump struct
2142 *
2143 * Return value:
2144 * nothing
2145 **/
2146static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2147{
2148 unsigned long start_addr, sdt_word;
2149 unsigned long lock_flags = 0;
2150 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2151 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2152 u32 num_entries, start_off, end_off;
2153 u32 bytes_to_copy, bytes_copied, rc;
2154 struct ipr_sdt *sdt;
2155 int i;
2156
2157 ENTER;
2158
2159 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2160
2161 if (ioa_cfg->sdt_state != GET_DUMP) {
2162 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2163 return;
2164 }
2165
2166 start_addr = readl(ioa_cfg->ioa_mailbox);
2167
2168 if (!ipr_sdt_is_fmt2(start_addr)) {
2169 dev_err(&ioa_cfg->pdev->dev,
2170 "Invalid dump table format: %lx\n", start_addr);
2171 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2172 return;
2173 }
2174
2175 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2176
2177 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2178
2179 /* Initialize the overall dump header */
2180 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2181 driver_dump->hdr.num_entries = 1;
2182 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2183 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2184 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2185 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2186
2187 ipr_dump_version_data(ioa_cfg, driver_dump);
2188 ipr_dump_location_data(ioa_cfg, driver_dump);
2189 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2190 ipr_dump_trace_data(ioa_cfg, driver_dump);
2191
2192 /* Update dump_header */
2193 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2194
2195 /* IOA Dump entry */
2196 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2197 ioa_dump->format = IPR_SDT_FMT2;
2198 ioa_dump->hdr.len = 0;
2199 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2200 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2201
2202 /* First entries in sdt are actually a list of dump addresses and
2203 lengths to gather the real dump data. sdt represents the pointer
2204 to the ioa generated dump table. Dump data will be extracted based
2205 on entries in this table */
2206 sdt = &ioa_dump->sdt;
2207
2208 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2209 sizeof(struct ipr_sdt) / sizeof(__be32));
2210
2211 /* Smart Dump table is ready to use and the first entry is valid */
2212 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) {
2213 dev_err(&ioa_cfg->pdev->dev,
2214 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2215 rc, be32_to_cpu(sdt->hdr.state));
2216 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2217 ioa_cfg->sdt_state = DUMP_OBTAINED;
2218 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2219 return;
2220 }
2221
2222 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2223
2224 if (num_entries > IPR_NUM_SDT_ENTRIES)
2225 num_entries = IPR_NUM_SDT_ENTRIES;
2226
2227 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2228
2229 for (i = 0; i < num_entries; i++) {
2230 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2231 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2232 break;
2233 }
2234
2235 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2236 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset);
2237 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2238 end_off = be32_to_cpu(sdt->entry[i].end_offset);
2239
2240 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) {
2241 bytes_to_copy = end_off - start_off;
2242 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2243 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2244 continue;
2245 }
2246
2247 /* Copy data from adapter to driver buffers */
2248 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2249 bytes_to_copy);
2250
2251 ioa_dump->hdr.len += bytes_copied;
2252
2253 if (bytes_copied != bytes_to_copy) {
2254 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2255 break;
2256 }
2257 }
2258 }
2259 }
2260
2261 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
2262
2263 /* Update dump_header */
2264 driver_dump->hdr.len += ioa_dump->hdr.len;
2265 wmb();
2266 ioa_cfg->sdt_state = DUMP_OBTAINED;
2267 LEAVE;
2268}
2269
2270#else
2271#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
2272#endif
2273
2274/**
2275 * ipr_release_dump - Free adapter dump memory
2276 * @kref: kref struct
2277 *
2278 * Return value:
2279 * nothing
2280 **/
2281static void ipr_release_dump(struct kref *kref)
2282{
2283 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
2284 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
2285 unsigned long lock_flags = 0;
2286 int i;
2287
2288 ENTER;
2289 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2290 ioa_cfg->dump = NULL;
2291 ioa_cfg->sdt_state = INACTIVE;
2292 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2293
2294 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
2295 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
2296
2297 kfree(dump);
2298 LEAVE;
2299}
2300
2301/**
2302 * ipr_worker_thread - Worker thread
c4028958 2303 * @work: ioa config struct
1da177e4
LT		 2304 *
2305 * Called at task level from a work thread. This function takes care
2306 * of adding and removing device from the mid-layer as configuration
2307 * changes are detected by the adapter.
2308 *
2309 * Return value:
2310 * nothing
2311 **/
c4028958 2312static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 2313{
2314 unsigned long lock_flags;
2315 struct ipr_resource_entry *res;
2316 struct scsi_device *sdev;
2317 struct ipr_dump *dump;
c4028958
DH		 2318 struct ipr_ioa_cfg *ioa_cfg =
2319 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 2320 u8 bus, target, lun;
2321 int did_work;
2322
2323 ENTER;
2324 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2325
2326 if (ioa_cfg->sdt_state == GET_DUMP) {
2327 dump = ioa_cfg->dump;
2328 if (!dump) {
2329 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2330 return;
2331 }
2332 kref_get(&dump->kref);
2333 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2334 ipr_get_ioa_dump(ioa_cfg, dump);
2335 kref_put(&dump->kref, ipr_release_dump);
2336
2337 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2338 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
2339 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2341 return;
2342 }
2343
2344restart:
2345 do {
2346 did_work = 0;
2347 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
2348 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2349 return;
2350 }
2351
2352 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2353 if (res->del_from_ml && res->sdev) {
2354 did_work = 1;
2355 sdev = res->sdev;
2356 if (!scsi_device_get(sdev)) {
1da177e4
LT		 2357 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
2358 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2359 scsi_remove_device(sdev);
2360 scsi_device_put(sdev);
2361 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2362 }
2363 break;
2364 }
2365 }
2366 } while(did_work);
2367
2368 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2369 if (res->add_to_ml) {
2370 bus = res->cfgte.res_addr.bus;
2371 target = res->cfgte.res_addr.target;
2372 lun = res->cfgte.res_addr.lun;
1121b794 2373 res->add_to_ml = 0;
1da177e4
LT		 2374 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2375 scsi_add_device(ioa_cfg->host, bus, target, lun);
2376 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2377 goto restart;
2378 }
2379 }
2380
2381 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
312c004d 2382 kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE);
1da177e4
LT		 2383 LEAVE;
2384}
2385
2386#ifdef CONFIG_SCSI_IPR_TRACE
2387/**
2388 * ipr_read_trace - Dump the adapter trace
2389 * @kobj: kobject struct
2390 * @buf: buffer
2391 * @off: offset
2392 * @count: buffer size
2393 *
2394 * Return value:
2395 * number of bytes printed to buffer
2396 **/
2397static ssize_t ipr_read_trace(struct kobject *kobj, char *buf,
2398 loff_t off, size_t count)
2399{
2400 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
2401 struct Scsi_Host *shost = class_to_shost(cdev);
2402 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2403 unsigned long lock_flags = 0;
2404 int size = IPR_TRACE_SIZE;
2405 char *src = (char *)ioa_cfg->trace;
2406
2407 if (off > size)
2408 return 0;
2409 if (off + count > size) {
2410 size -= off;
2411 count = size;
2412 }
2413
2414 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2415 memcpy(buf, &src[off], count);
2416 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2417 return count;
2418}
2419
2420static struct bin_attribute ipr_trace_attr = {
2421 .attr = {
2422 .name = "trace",
2423 .mode = S_IRUGO,
2424 },
2425 .size = 0,
2426 .read = ipr_read_trace,
2427};
2428#endif
2429
62275040
BK		 2430static const struct {
2431 enum ipr_cache_state state;
2432 char *name;
2433} cache_state [] = {
2434 { CACHE_NONE, "none" },
2435 { CACHE_DISABLED, "disabled" },
2436 { CACHE_ENABLED, "enabled" }
2437};
2438
2439/**
2440 * ipr_show_write_caching - Show the write caching attribute
2441 * @class_dev: class device struct
2442 * @buf: buffer
2443 *
2444 * Return value:
2445 * number of bytes printed to buffer
2446 **/
2447static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf)
2448{
2449 struct Scsi_Host *shost = class_to_shost(class_dev);
2450 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2451 unsigned long lock_flags = 0;
2452 int i, len = 0;
2453
2454 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2455 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2456 if (cache_state[i].state == ioa_cfg->cache_state) {
2457 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2458 break;
2459 }
2460 }
2461 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2462 return len;
2463}
2464
2465
2466/**
2467 * ipr_store_write_caching - Enable/disable adapter write cache
2468 * @class_dev: class_device struct
2469 * @buf: buffer
2470 * @count: buffer size
2471 *
2472 * This function will enable/disable adapter write cache.
2473 *
2474 * Return value:
2475 * count on success / other on failure
2476 **/
2477static ssize_t ipr_store_write_caching(struct class_device *class_dev,
2478 const char *buf, size_t count)
2479{
2480 struct Scsi_Host *shost = class_to_shost(class_dev);
2481 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2482 unsigned long lock_flags = 0;
2483 enum ipr_cache_state new_state = CACHE_INVALID;
2484 int i;
2485
2486 if (!capable(CAP_SYS_ADMIN))
2487 return -EACCES;
2488 if (ioa_cfg->cache_state == CACHE_NONE)
2489 return -EINVAL;
2490
2491 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2492 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2493 new_state = cache_state[i].state;
2494 break;
2495 }
2496 }
2497
2498 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2499 return -EINVAL;
2500
2501 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2502 if (ioa_cfg->cache_state == new_state) {
2503 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2504 return count;
2505 }
2506
2507 ioa_cfg->cache_state = new_state;
2508 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2509 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2510 if (!ioa_cfg->in_reset_reload)
2511 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2513 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2514
2515 return count;
2516}
2517
2518static struct class_device_attribute ipr_ioa_cache_attr = {
2519 .attr = {
2520 .name = "write_cache",
2521 .mode = S_IRUGO | S_IWUSR,
2522 },
2523 .show = ipr_show_write_caching,
2524 .store = ipr_store_write_caching
2525};
2526
1da177e4
LT		 2527/**
2528 * ipr_show_fw_version - Show the firmware version
2529 * @class_dev: class device struct
2530 * @buf: buffer
2531 *
2532 * Return value:
2533 * number of bytes printed to buffer
2534 **/
2535static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf)
2536{
2537 struct Scsi_Host *shost = class_to_shost(class_dev);
2538 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2539 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2540 unsigned long lock_flags = 0;
2541 int len;
2542
2543 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2544 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2545 ucode_vpd->major_release, ucode_vpd->card_type,
2546 ucode_vpd->minor_release[0],
2547 ucode_vpd->minor_release[1]);
2548 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2549 return len;
2550}
2551
2552static struct class_device_attribute ipr_fw_version_attr = {
2553 .attr = {
2554 .name = "fw_version",
2555 .mode = S_IRUGO,
2556 },
2557 .show = ipr_show_fw_version,
2558};
2559
2560/**
2561 * ipr_show_log_level - Show the adapter's error logging level
2562 * @class_dev: class device struct
2563 * @buf: buffer
2564 *
2565 * Return value:
2566 * number of bytes printed to buffer
2567 **/
2568static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf)
2569{
2570 struct Scsi_Host *shost = class_to_shost(class_dev);
2571 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2572 unsigned long lock_flags = 0;
2573 int len;
2574
2575 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2576 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2577 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2578 return len;
2579}
2580
2581/**
2582 * ipr_store_log_level - Change the adapter's error logging level
2583 * @class_dev: class device struct
2584 * @buf: buffer
2585 *
2586 * Return value:
2587 * number of bytes printed to buffer
2588 **/
2589static ssize_t ipr_store_log_level(struct class_device *class_dev,
2590 const char *buf, size_t count)
2591{
2592 struct Scsi_Host *shost = class_to_shost(class_dev);
2593 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2594 unsigned long lock_flags = 0;
2595
2596 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2597 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2598 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2599 return strlen(buf);
2600}
2601
2602static struct class_device_attribute ipr_log_level_attr = {
2603 .attr = {
2604 .name = "log_level",
2605 .mode = S_IRUGO | S_IWUSR,
2606 },
2607 .show = ipr_show_log_level,
2608 .store = ipr_store_log_level
2609};
2610
2611/**
2612 * ipr_store_diagnostics - IOA Diagnostics interface
2613 * @class_dev: class_device struct
2614 * @buf: buffer
2615 * @count: buffer size
2616 *
2617 * This function will reset the adapter and wait a reasonable
2618 * amount of time for any errors that the adapter might log.
2619 *
2620 * Return value:
2621 * count on success / other on failure
2622 **/
2623static ssize_t ipr_store_diagnostics(struct class_device *class_dev,
2624 const char *buf, size_t count)
2625{
2626 struct Scsi_Host *shost = class_to_shost(class_dev);
2627 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2628 unsigned long lock_flags = 0;
2629 int rc = count;
2630
2631 if (!capable(CAP_SYS_ADMIN))
2632 return -EACCES;
2633
2634 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2635 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2636 ioa_cfg->errors_logged = 0;
2637 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2638
2639 if (ioa_cfg->in_reset_reload) {
2640 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2641 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2642
2643 /* Wait for a second for any errors to be logged */
2644 msleep(1000);
2645 } else {
2646 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2647 return -EIO;
2648 }
2649
2650 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2651 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2652 rc = -EIO;
2653 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2654
2655 return rc;
2656}
2657
2658static struct class_device_attribute ipr_diagnostics_attr = {
2659 .attr = {
2660 .name = "run_diagnostics",
2661 .mode = S_IWUSR,
2662 },
2663 .store = ipr_store_diagnostics
2664};
2665
f37eb54b
BK		 2666/**
2667 * ipr_show_adapter_state - Show the adapter's state
2668 * @class_dev: class device struct
2669 * @buf: buffer
2670 *
2671 * Return value:
2672 * number of bytes printed to buffer
2673 **/
2674static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf)
2675{
2676 struct Scsi_Host *shost = class_to_shost(class_dev);
2677 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2678 unsigned long lock_flags = 0;
2679 int len;
2680
2681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2682 if (ioa_cfg->ioa_is_dead)
2683 len = snprintf(buf, PAGE_SIZE, "offline\n");
2684 else
2685 len = snprintf(buf, PAGE_SIZE, "online\n");
2686 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2687 return len;
2688}
2689
2690/**
2691 * ipr_store_adapter_state - Change adapter state
2692 * @class_dev: class_device struct
2693 * @buf: buffer
2694 * @count: buffer size
2695 *
2696 * This function will change the adapter's state.
2697 *
2698 * Return value:
2699 * count on success / other on failure
2700 **/
2701static ssize_t ipr_store_adapter_state(struct class_device *class_dev,
2702 const char *buf, size_t count)
2703{
2704 struct Scsi_Host *shost = class_to_shost(class_dev);
2705 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2706 unsigned long lock_flags;
2707 int result = count;
2708
2709 if (!capable(CAP_SYS_ADMIN))
2710 return -EACCES;
2711
2712 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2713 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2714 ioa_cfg->ioa_is_dead = 0;
2715 ioa_cfg->reset_retries = 0;
2716 ioa_cfg->in_ioa_bringdown = 0;
2717 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2718 }
2719 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2720 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2721
2722 return result;
2723}
2724
2725static struct class_device_attribute ipr_ioa_state_attr = {
2726 .attr = {
2727 .name = "state",
2728 .mode = S_IRUGO | S_IWUSR,
2729 },
2730 .show = ipr_show_adapter_state,
2731 .store = ipr_store_adapter_state
2732};
2733
1da177e4
LT		 2734/**
2735 * ipr_store_reset_adapter - Reset the adapter
2736 * @class_dev: class_device struct
2737 * @buf: buffer
2738 * @count: buffer size
2739 *
2740 * This function will reset the adapter.
2741 *
2742 * Return value:
2743 * count on success / other on failure
2744 **/
2745static ssize_t ipr_store_reset_adapter(struct class_device *class_dev,
2746 const char *buf, size_t count)
2747{
2748 struct Scsi_Host *shost = class_to_shost(class_dev);
2749 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2750 unsigned long lock_flags;
2751 int result = count;
2752
2753 if (!capable(CAP_SYS_ADMIN))
2754 return -EACCES;
2755
2756 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2757 if (!ioa_cfg->in_reset_reload)
2758 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2759 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2760 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2761
2762 return result;
2763}
2764
2765static struct class_device_attribute ipr_ioa_reset_attr = {
2766 .attr = {
2767 .name = "reset_host",
2768 .mode = S_IWUSR,
2769 },
2770 .store = ipr_store_reset_adapter
2771};
2772
2773/**
2774 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2775 * @buf_len: buffer length
2776 *
2777 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2778 * list to use for microcode download
2779 *
2780 * Return value:
2781 * pointer to sglist / NULL on failure
2782 **/
2783static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2784{
2785 int sg_size, order, bsize_elem, num_elem, i, j;
2786 struct ipr_sglist *sglist;
2787 struct scatterlist *scatterlist;
2788 struct page *page;
2789
2790 /* Get the minimum size per scatter/gather element */
2791 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2792
2793 /* Get the actual size per element */
2794 order = get_order(sg_size);
2795
2796 /* Determine the actual number of bytes per element */
2797 bsize_elem = PAGE_SIZE * (1 << order);
2798
2799 /* Determine the actual number of sg entries needed */
2800 if (buf_len % bsize_elem)
2801 num_elem = (buf_len / bsize_elem) + 1;
2802 else
2803 num_elem = buf_len / bsize_elem;
2804
2805 /* Allocate a scatter/gather list for the DMA */
0bc42e35 2806 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 2807 (sizeof(struct scatterlist) * (num_elem - 1)),
2808 GFP_KERNEL);
2809
2810 if (sglist == NULL) {
2811 ipr_trace;
2812 return NULL;
2813 }
2814
1da177e4
LT		 2815 scatterlist = sglist->scatterlist;
2816
2817 sglist->order = order;
2818 sglist->num_sg = num_elem;
2819
2820 /* Allocate a bunch of sg elements */
2821 for (i = 0; i < num_elem; i++) {
2822 page = alloc_pages(GFP_KERNEL, order);
2823 if (!page) {
2824 ipr_trace;
2825
2826 /* Free up what we already allocated */
2827 for (j = i - 1; j >= 0; j--)
2828 __free_pages(scatterlist[j].page, order);
2829 kfree(sglist);
2830 return NULL;
2831 }
2832
2833 scatterlist[i].page = page;
2834 }
2835
2836 return sglist;
2837}
2838
2839/**
2840 * ipr_free_ucode_buffer - Frees a microcode download buffer
2841 * @p_dnld: scatter/gather list pointer
2842 *
2843 * Free a DMA'able ucode download buffer previously allocated with
2844 * ipr_alloc_ucode_buffer
2845 *
2846 * Return value:
2847 * nothing
2848 **/
2849static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2850{
2851 int i;
2852
2853 for (i = 0; i < sglist->num_sg; i++)
2854 __free_pages(sglist->scatterlist[i].page, sglist->order);
2855
2856 kfree(sglist);
2857}
2858
2859/**
2860 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2861 * @sglist: scatter/gather list pointer
2862 * @buffer: buffer pointer
2863 * @len: buffer length
2864 *
2865 * Copy a microcode image from a user buffer into a buffer allocated by
2866 * ipr_alloc_ucode_buffer
2867 *
2868 * Return value:
2869 * 0 on success / other on failure
2870 **/
2871static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2872 u8 *buffer, u32 len)
2873{
2874 int bsize_elem, i, result = 0;
2875 struct scatterlist *scatterlist;
2876 void *kaddr;
2877
2878 /* Determine the actual number of bytes per element */
2879 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2880
2881 scatterlist = sglist->scatterlist;
2882
2883 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2884 kaddr = kmap(scatterlist[i].page);
2885 memcpy(kaddr, buffer, bsize_elem);
2886 kunmap(scatterlist[i].page);
2887
2888 scatterlist[i].length = bsize_elem;
2889
2890 if (result != 0) {
2891 ipr_trace;
2892 return result;
2893 }
2894 }
2895
2896 if (len % bsize_elem) {
2897 kaddr = kmap(scatterlist[i].page);
2898 memcpy(kaddr, buffer, len % bsize_elem);
2899 kunmap(scatterlist[i].page);
2900
2901 scatterlist[i].length = len % bsize_elem;
2902 }
2903
2904 sglist->buffer_len = len;
2905 return result;
2906}
2907
2908/**
12baa420 2909 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 2910 * @ipr_cmd: ipr command struct
2911 * @sglist: scatter/gather list
1da177e4 2912 *
12baa420 2913 * Builds a microcode download IOA data list (IOADL).
1da177e4 2914 *
1da177e4 2915 **/
12baa420
BK		 2916static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
2917 struct ipr_sglist *sglist)
1da177e4 2918{
1da177e4
LT		 2919 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
2920 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
2921 struct scatterlist *scatterlist = sglist->scatterlist;
2922 int i;
2923
12baa420 2924 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 2925 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
12baa420 2926 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
1da177e4
LT		 2927 ioarcb->write_ioadl_len =
2928 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
2929
2930 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
2931 ioadl[i].flags_and_data_len =
2932 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
2933 ioadl[i].address =
2934 cpu_to_be32(sg_dma_address(&scatterlist[i]));
2935 }
2936
12baa420
BK		 2937 ioadl[i-1].flags_and_data_len |=
2938 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
2939}
2940
2941/**
2942 * ipr_update_ioa_ucode - Update IOA's microcode
2943 * @ioa_cfg: ioa config struct
2944 * @sglist: scatter/gather list
2945 *
2946 * Initiate an adapter reset to update the IOA's microcode
2947 *
2948 * Return value:
2949 * 0 on success / -EIO on failure
2950 **/
2951static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
2952 struct ipr_sglist *sglist)
2953{
2954 unsigned long lock_flags;
2955
2956 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2957
2958 if (ioa_cfg->ucode_sglist) {
2959 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2960 dev_err(&ioa_cfg->pdev->dev,
2961 "Microcode download already in progress\n");
2962 return -EIO;
1da177e4 2963 }
12baa420
BK		 2964
2965 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
2966 sglist->num_sg, DMA_TO_DEVICE);
2967
2968 if (!sglist->num_dma_sg) {
2969 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2970 dev_err(&ioa_cfg->pdev->dev,
2971 "Failed to map microcode download buffer!\n");
1da177e4
LT		 2972 return -EIO;
2973 }
2974
12baa420
BK		 2975 ioa_cfg->ucode_sglist = sglist;
2976 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2977 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2978 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2979
2980 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2981 ioa_cfg->ucode_sglist = NULL;
2982 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 2983 return 0;
2984}
2985
2986/**
2987 * ipr_store_update_fw - Update the firmware on the adapter
2988 * @class_dev: class_device struct
2989 * @buf: buffer
2990 * @count: buffer size
2991 *
2992 * This function will update the firmware on the adapter.
2993 *
2994 * Return value:
2995 * count on success / other on failure
2996 **/
2997static ssize_t ipr_store_update_fw(struct class_device *class_dev,
2998 const char *buf, size_t count)
2999{
3000 struct Scsi_Host *shost = class_to_shost(class_dev);
3001 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3002 struct ipr_ucode_image_header *image_hdr;
3003 const struct firmware *fw_entry;
3004 struct ipr_sglist *sglist;
1da177e4
LT		 3005 char fname[100];
3006 char *src;
3007 int len, result, dnld_size;
3008
3009 if (!capable(CAP_SYS_ADMIN))
3010 return -EACCES;
3011
3012 len = snprintf(fname, 99, "%s", buf);
3013 fname[len-1] = '\0';
3014
3015 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3016 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3017 return -EIO;
3018 }
3019
3020 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3021
3022 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3023 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3024 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3025 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3026 release_firmware(fw_entry);
3027 return -EINVAL;
3028 }
3029
3030 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3031 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3032 sglist = ipr_alloc_ucode_buffer(dnld_size);
3033
3034 if (!sglist) {
3035 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3036 release_firmware(fw_entry);
3037 return -ENOMEM;
3038 }
3039
3040 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3041
3042 if (result) {
3043 dev_err(&ioa_cfg->pdev->dev,
3044 "Microcode buffer copy to DMA buffer failed\n");
12baa420 3045 goto out;
1da177e4
LT		 3046 }
3047
12baa420 3048 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 3049
12baa420
BK		 3050 if (!result)
3051 result = count;
3052out:
1da177e4
LT		 3053 ipr_free_ucode_buffer(sglist);
3054 release_firmware(fw_entry);
12baa420 3055 return result;
1da177e4
LT		 3056}
3057
3058static struct class_device_attribute ipr_update_fw_attr = {
3059 .attr = {
3060 .name = "update_fw",
3061 .mode = S_IWUSR,
3062 },
3063 .store = ipr_store_update_fw
3064};
3065
3066static struct class_device_attribute *ipr_ioa_attrs[] = {
3067 &ipr_fw_version_attr,
3068 &ipr_log_level_attr,
3069 &ipr_diagnostics_attr,
f37eb54b 3070 &ipr_ioa_state_attr,
1da177e4
LT		 3071 &ipr_ioa_reset_attr,
3072 &ipr_update_fw_attr,
62275040 3073 &ipr_ioa_cache_attr,
1da177e4
LT		 3074 NULL,
3075};
3076
3077#ifdef CONFIG_SCSI_IPR_DUMP
3078/**
3079 * ipr_read_dump - Dump the adapter
3080 * @kobj: kobject struct
3081 * @buf: buffer
3082 * @off: offset
3083 * @count: buffer size
3084 *
3085 * Return value:
3086 * number of bytes printed to buffer
3087 **/
3088static ssize_t ipr_read_dump(struct kobject *kobj, char *buf,
3089 loff_t off, size_t count)
3090{
3091 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3092 struct Scsi_Host *shost = class_to_shost(cdev);
3093 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3094 struct ipr_dump *dump;
3095 unsigned long lock_flags = 0;
3096 char *src;
3097 int len;
3098 size_t rc = count;
3099
3100 if (!capable(CAP_SYS_ADMIN))
3101 return -EACCES;
3102
3103 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3104 dump = ioa_cfg->dump;
3105
3106 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3107 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3108 return 0;
3109 }
3110 kref_get(&dump->kref);
3111 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3112
3113 if (off > dump->driver_dump.hdr.len) {
3114 kref_put(&dump->kref, ipr_release_dump);
3115 return 0;
3116 }
3117
3118 if (off + count > dump->driver_dump.hdr.len) {
3119 count = dump->driver_dump.hdr.len - off;
3120 rc = count;
3121 }
3122
3123 if (count && off < sizeof(dump->driver_dump)) {
3124 if (off + count > sizeof(dump->driver_dump))
3125 len = sizeof(dump->driver_dump) - off;
3126 else
3127 len = count;
3128 src = (u8 *)&dump->driver_dump + off;
3129 memcpy(buf, src, len);
3130 buf += len;
3131 off += len;
3132 count -= len;
3133 }
3134
3135 off -= sizeof(dump->driver_dump);
3136
3137 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3138 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3139 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3140 else
3141 len = count;
3142 src = (u8 *)&dump->ioa_dump + off;
3143 memcpy(buf, src, len);
3144 buf += len;
3145 off += len;
3146 count -= len;
3147 }
3148
3149 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3150
3151 while (count) {
3152 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3153 len = PAGE_ALIGN(off) - off;
3154 else
3155 len = count;
3156 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3157 src += off & ~PAGE_MASK;
3158 memcpy(buf, src, len);
3159 buf += len;
3160 off += len;
3161 count -= len;
3162 }
3163
3164 kref_put(&dump->kref, ipr_release_dump);
3165 return rc;
3166}
3167
3168/**
3169 * ipr_alloc_dump - Prepare for adapter dump
3170 * @ioa_cfg: ioa config struct
3171 *
3172 * Return value:
3173 * 0 on success / other on failure
3174 **/
3175static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3176{
3177 struct ipr_dump *dump;
3178 unsigned long lock_flags = 0;
3179
0bc42e35 3180 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 3181
3182 if (!dump) {
3183 ipr_err("Dump memory allocation failed\n");
3184 return -ENOMEM;
3185 }
3186
1da177e4
LT		 3187 kref_init(&dump->kref);
3188 dump->ioa_cfg = ioa_cfg;
3189
3190 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3191
3192 if (INACTIVE != ioa_cfg->sdt_state) {
3193 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3194 kfree(dump);
3195 return 0;
3196 }
3197
3198 ioa_cfg->dump = dump;
3199 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3200 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3201 ioa_cfg->dump_taken = 1;
3202 schedule_work(&ioa_cfg->work_q);
3203 }
3204 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3205
1da177e4
LT		 3206 return 0;
3207}
3208
3209/**
3210 * ipr_free_dump - Free adapter dump memory
3211 * @ioa_cfg: ioa config struct
3212 *
3213 * Return value:
3214 * 0 on success / other on failure
3215 **/
3216static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3217{
3218 struct ipr_dump *dump;
3219 unsigned long lock_flags = 0;
3220
3221 ENTER;
3222
3223 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3224 dump = ioa_cfg->dump;
3225 if (!dump) {
3226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3227 return 0;
3228 }
3229
3230 ioa_cfg->dump = NULL;
3231 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3232
3233 kref_put(&dump->kref, ipr_release_dump);
3234
3235 LEAVE;
3236 return 0;
3237}
3238
3239/**
3240 * ipr_write_dump - Setup dump state of adapter
3241 * @kobj: kobject struct
3242 * @buf: buffer
3243 * @off: offset
3244 * @count: buffer size
3245 *
3246 * Return value:
3247 * number of bytes printed to buffer
3248 **/
3249static ssize_t ipr_write_dump(struct kobject *kobj, char *buf,
3250 loff_t off, size_t count)
3251{
3252 struct class_device *cdev = container_of(kobj,struct class_device,kobj);
3253 struct Scsi_Host *shost = class_to_shost(cdev);
3254 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3255 int rc;
3256
3257 if (!capable(CAP_SYS_ADMIN))
3258 return -EACCES;
3259
3260 if (buf[0] == '1')
3261 rc = ipr_alloc_dump(ioa_cfg);
3262 else if (buf[0] == '0')
3263 rc = ipr_free_dump(ioa_cfg);
3264 else
3265 return -EINVAL;
3266
3267 if (rc)
3268 return rc;
3269 else
3270 return count;
3271}
3272
3273static struct bin_attribute ipr_dump_attr = {
3274 .attr = {
3275 .name = "dump",
3276 .mode = S_IRUSR | S_IWUSR,
3277 },
3278 .size = 0,
3279 .read = ipr_read_dump,
3280 .write = ipr_write_dump
3281};
3282#else
3283static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3284#endif
3285
3286/**
3287 * ipr_change_queue_depth - Change the device's queue depth
3288 * @sdev: scsi device struct
3289 * @qdepth: depth to set
3290 *
3291 * Return value:
3292 * actual depth set
3293 **/
3294static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
3295{
35a39691
BK		 3296 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3297 struct ipr_resource_entry *res;
3298 unsigned long lock_flags = 0;
3299
3300 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3301 res = (struct ipr_resource_entry *)sdev->hostdata;
3302
3303 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3304 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3305 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3306
1da177e4
LT		 3307 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3308 return sdev->queue_depth;
3309}
3310
3311/**
3312 * ipr_change_queue_type - Change the device's queue type
3313 * @dsev: scsi device struct
3314 * @tag_type: type of tags to use
3315 *
3316 * Return value:
3317 * actual queue type set
3318 **/
3319static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3320{
3321 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3322 struct ipr_resource_entry *res;
3323 unsigned long lock_flags = 0;
3324
3325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3326 res = (struct ipr_resource_entry *)sdev->hostdata;
3327
3328 if (res) {
3329 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3330 /*
3331 * We don't bother quiescing the device here since the
3332 * adapter firmware does it for us.
3333 */
3334 scsi_set_tag_type(sdev, tag_type);
3335
3336 if (tag_type)
3337 scsi_activate_tcq(sdev, sdev->queue_depth);
3338 else
3339 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3340 } else
3341 tag_type = 0;
3342 } else
3343 tag_type = 0;
3344
3345 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3346 return tag_type;
3347}
3348
3349/**
3350 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3351 * @dev: device struct
3352 * @buf: buffer
3353 *
3354 * Return value:
3355 * number of bytes printed to buffer
3356 **/
10523b3b 3357static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 3358{
3359 struct scsi_device *sdev = to_scsi_device(dev);
3360 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3361 struct ipr_resource_entry *res;
3362 unsigned long lock_flags = 0;
3363 ssize_t len = -ENXIO;
3364
3365 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3366 res = (struct ipr_resource_entry *)sdev->hostdata;
3367 if (res)
3368 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3369 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3370 return len;
3371}
3372
3373static struct device_attribute ipr_adapter_handle_attr = {
3374 .attr = {
3375 .name = "adapter_handle",
3376 .mode = S_IRUSR,
3377 },
3378 .show = ipr_show_adapter_handle
3379};
3380
3381static struct device_attribute *ipr_dev_attrs[] = {
3382 &ipr_adapter_handle_attr,
3383 NULL,
3384};
3385
3386/**
3387 * ipr_biosparam - Return the HSC mapping
3388 * @sdev: scsi device struct
3389 * @block_device: block device pointer
3390 * @capacity: capacity of the device
3391 * @parm: Array containing returned HSC values.
3392 *
3393 * This function generates the HSC parms that fdisk uses.
3394 * We want to make sure we return something that places partitions
3395 * on 4k boundaries for best performance with the IOA.
3396 *
3397 * Return value:
3398 * 0 on success
3399 **/
3400static int ipr_biosparam(struct scsi_device *sdev,
3401 struct block_device *block_device,
3402 sector_t capacity, int *parm)
3403{
3404 int heads, sectors;
3405 sector_t cylinders;
3406
3407 heads = 128;
3408 sectors = 32;
3409
3410 cylinders = capacity;
3411 sector_div(cylinders, (128 * 32));
3412
3413 /* return result */
3414 parm[0] = heads;
3415 parm[1] = sectors;
3416 parm[2] = cylinders;
3417
3418 return 0;
3419}
3420
35a39691
BK		 3421/**
3422 * ipr_find_starget - Find target based on bus/target.
3423 * @starget: scsi target struct
3424 *
3425 * Return value:
3426 * resource entry pointer if found / NULL if not found
3427 **/
3428static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3429{
3430 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3431 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3432 struct ipr_resource_entry *res;
3433
3434 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3435 if ((res->cfgte.res_addr.bus == starget->channel) &&
3436 (res->cfgte.res_addr.target == starget->id) &&
3437 (res->cfgte.res_addr.lun == 0)) {
3438 return res;
3439 }
3440 }
3441
3442 return NULL;
3443}
3444
3445static struct ata_port_info sata_port_info;
3446
3447/**
3448 * ipr_target_alloc - Prepare for commands to a SCSI target
3449 * @starget: scsi target struct
3450 *
3451 * If the device is a SATA device, this function allocates an
3452 * ATA port with libata, else it does nothing.
3453 *
3454 * Return value:
3455 * 0 on success / non-0 on failure
3456 **/
3457static int ipr_target_alloc(struct scsi_target *starget)
3458{
3459 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3460 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3461 struct ipr_sata_port *sata_port;
3462 struct ata_port *ap;
3463 struct ipr_resource_entry *res;
3464 unsigned long lock_flags;
3465
3466 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3467 res = ipr_find_starget(starget);
3468 starget->hostdata = NULL;
3469
3470 if (res && ipr_is_gata(res)) {
3471 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3472 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3473 if (!sata_port)
3474 return -ENOMEM;
3475
3476 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3477 if (ap) {
3478 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3479 sata_port->ioa_cfg = ioa_cfg;
3480 sata_port->ap = ap;
3481 sata_port->res = res;
3482
3483 res->sata_port = sata_port;
3484 ap->private_data = sata_port;
3485 starget->hostdata = sata_port;
3486 } else {
3487 kfree(sata_port);
3488 return -ENOMEM;
3489 }
3490 }
3491 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3492
3493 return 0;
3494}
3495
3496/**
3497 * ipr_target_destroy - Destroy a SCSI target
3498 * @starget: scsi target struct
3499 *
3500 * If the device was a SATA device, this function frees the libata
3501 * ATA port, else it does nothing.
3502 *
3503 **/
3504static void ipr_target_destroy(struct scsi_target *starget)
3505{
3506 struct ipr_sata_port *sata_port = starget->hostdata;
3507
3508 if (sata_port) {
3509 starget->hostdata = NULL;
3510 ata_sas_port_destroy(sata_port->ap);
3511 kfree(sata_port);
3512 }
3513}
3514
3515/**
3516 * ipr_find_sdev - Find device based on bus/target/lun.
3517 * @sdev: scsi device struct
3518 *
3519 * Return value:
3520 * resource entry pointer if found / NULL if not found
3521 **/
3522static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3523{
3524 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3525 struct ipr_resource_entry *res;
3526
3527 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3528 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3529 (res->cfgte.res_addr.target == sdev->id) &&
3530 (res->cfgte.res_addr.lun == sdev->lun))
3531 return res;
3532 }
3533
3534 return NULL;
3535}
3536
1da177e4
LT		 3537/**
3538 * ipr_slave_destroy - Unconfigure a SCSI device
3539 * @sdev: scsi device struct
3540 *
3541 * Return value:
3542 * nothing
3543 **/
3544static void ipr_slave_destroy(struct scsi_device *sdev)
3545{
3546 struct ipr_resource_entry *res;
3547 struct ipr_ioa_cfg *ioa_cfg;
3548 unsigned long lock_flags = 0;
3549
3550 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3551
3552 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3553 res = (struct ipr_resource_entry *) sdev->hostdata;
3554 if (res) {
35a39691
BK		 3555 if (res->sata_port)
3556 ata_port_disable(res->sata_port->ap);
1da177e4
LT		 3557 sdev->hostdata = NULL;
3558 res->sdev = NULL;
35a39691 3559 res->sata_port = NULL;
1da177e4
LT		 3560 }
3561 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3562}
3563
3564/**
3565 * ipr_slave_configure - Configure a SCSI device
3566 * @sdev: scsi device struct
3567 *
3568 * This function configures the specified scsi device.
3569 *
3570 * Return value:
3571 * 0 on success
3572 **/
3573static int ipr_slave_configure(struct scsi_device *sdev)
3574{
3575 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3576 struct ipr_resource_entry *res;
3577 unsigned long lock_flags = 0;
3578
3579 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3580 res = sdev->hostdata;
3581 if (res) {
3582 if (ipr_is_af_dasd_device(res))
3583 sdev->type = TYPE_RAID;
0726ce26 3584 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 3585 sdev->scsi_level = 4;
0726ce26
BK		 3586 sdev->no_uld_attach = 1;
3587 }
1da177e4
LT		 3588 if (ipr_is_vset_device(res)) {
3589 sdev->timeout = IPR_VSET_RW_TIMEOUT;
3590 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3591 }
e4fbf44e 3592 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
1da177e4 3593 sdev->allow_restart = 1;
35a39691
BK		 3594 if (ipr_is_gata(res) && res->sata_port) {
3595 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3596 ata_sas_slave_configure(sdev, res->sata_port->ap);
3597 } else {
3598 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3599 }
1da177e4
LT		 3600 }
3601 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3602 return 0;
3603}
3604
35a39691
BK		 3605/**
3606 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3607 * @sdev: scsi device struct
3608 *
3609 * This function initializes an ATA port so that future commands
3610 * sent through queuecommand will work.
3611 *
3612 * Return value:
3613 * 0 on success
3614 **/
3615static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3616{
3617 struct ipr_sata_port *sata_port = NULL;
3618 int rc = -ENXIO;
3619
3620 ENTER;
3621 if (sdev->sdev_target)
3622 sata_port = sdev->sdev_target->hostdata;
3623 if (sata_port)
3624 rc = ata_sas_port_init(sata_port->ap);
3625 if (rc)
3626 ipr_slave_destroy(sdev);
3627
3628 LEAVE;
3629 return rc;
3630}
3631
1da177e4
LT		 3632/**
3633 * ipr_slave_alloc - Prepare for commands to a device.
3634 * @sdev: scsi device struct
3635 *
3636 * This function saves a pointer to the resource entry
3637 * in the scsi device struct if the device exists. We
3638 * can then use this pointer in ipr_queuecommand when
3639 * handling new commands.
3640 *
3641 * Return value:
692aebfc 3642 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 3643 **/
3644static int ipr_slave_alloc(struct scsi_device *sdev)
3645{
3646 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3647 struct ipr_resource_entry *res;
3648 unsigned long lock_flags;
692aebfc 3649 int rc = -ENXIO;
1da177e4
LT		 3650
3651 sdev->hostdata = NULL;
3652
3653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3654
35a39691
BK		 3655 res = ipr_find_sdev(sdev);
3656 if (res) {
3657 res->sdev = sdev;
3658 res->add_to_ml = 0;
3659 res->in_erp = 0;
3660 sdev->hostdata = res;
3661 if (!ipr_is_naca_model(res))
3662 res->needs_sync_complete = 1;
3663 rc = 0;
3664 if (ipr_is_gata(res)) {
3665 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3666 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 3667 }
3668 }
3669
3670 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3671
692aebfc 3672 return rc;
1da177e4
LT		 3673}
3674
3675/**
3676 * ipr_eh_host_reset - Reset the host adapter
3677 * @scsi_cmd: scsi command struct
3678 *
3679 * Return value:
3680 * SUCCESS / FAILED
3681 **/
df0ae249 3682static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 3683{
3684 struct ipr_ioa_cfg *ioa_cfg;
3685 int rc;
3686
3687 ENTER;
3688 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3689
3690 dev_err(&ioa_cfg->pdev->dev,
3691 "Adapter being reset as a result of error recovery.\n");
3692
3693 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3694 ioa_cfg->sdt_state = GET_DUMP;
3695
3696 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3697
3698 LEAVE;
3699 return rc;
3700}
3701
df0ae249
JG		 3702static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3703{
3704 int rc;
3705
3706 spin_lock_irq(cmd->device->host->host_lock);
3707 rc = __ipr_eh_host_reset(cmd);
3708 spin_unlock_irq(cmd->device->host->host_lock);
3709
3710 return rc;
3711}
3712
c6513096
BK		 3713/**
3714 * ipr_device_reset - Reset the device
3715 * @ioa_cfg: ioa config struct
3716 * @res: resource entry struct
3717 *
3718 * This function issues a device reset to the affected device.
3719 * If the device is a SCSI device, a LUN reset will be sent
3720 * to the device first. If that does not work, a target reset
35a39691
BK		 3721 * will be sent. If the device is a SATA device, a PHY reset will
3722 * be sent.
c6513096
BK		 3723 *
3724 * Return value:
3725 * 0 on success / non-zero on failure
3726 **/
3727static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3728 struct ipr_resource_entry *res)
3729{
3730 struct ipr_cmnd *ipr_cmd;
3731 struct ipr_ioarcb *ioarcb;
3732 struct ipr_cmd_pkt *cmd_pkt;
35a39691 3733 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 3734 u32 ioasc;
3735
3736 ENTER;
3737 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3738 ioarcb = &ipr_cmd->ioarcb;
3739 cmd_pkt = &ioarcb->cmd_pkt;
35a39691 3740 regs = &ioarcb->add_data.u.regs;
c6513096
BK		 3741
3742 ioarcb->res_handle = res->cfgte.res_handle;
3743 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3744 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 3745 if (ipr_is_gata(res)) {
3746 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3747 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3748 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3749 }
c6513096
BK		 3750
3751 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3752 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3753 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
35a39691
BK		 3754 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3755 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3756 sizeof(struct ipr_ioasa_gata));
c6513096
BK		 3757
3758 LEAVE;
3759 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3760}
3761
35a39691
BK		 3762/**
3763 * ipr_sata_reset - Reset the SATA port
3764 * @ap: SATA port to reset
3765 * @classes: class of the attached device
3766 *
3767 * This function issues a SATA phy reset to the affected ATA port.
3768 *
3769 * Return value:
3770 * 0 on success / non-zero on failure
3771 **/
3772static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes)
3773{
3774 struct ipr_sata_port *sata_port = ap->private_data;
3775 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3776 struct ipr_resource_entry *res;
3777 unsigned long lock_flags = 0;
3778 int rc = -ENXIO;
3779
3780 ENTER;
3781 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
73d98ff0
BK		 3782 while(ioa_cfg->in_reset_reload) {
3783 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3784 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3785 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3786 }
3787
35a39691
BK		 3788 res = sata_port->res;
3789 if (res) {
3790 rc = ipr_device_reset(ioa_cfg, res);
3791 switch(res->cfgte.proto) {
3792 case IPR_PROTO_SATA:
3793 case IPR_PROTO_SAS_STP:
3794 *classes = ATA_DEV_ATA;
3795 break;
3796 case IPR_PROTO_SATA_ATAPI:
3797 case IPR_PROTO_SAS_STP_ATAPI:
3798 *classes = ATA_DEV_ATAPI;
3799 break;
3800 default:
3801 *classes = ATA_DEV_UNKNOWN;
3802 break;
3803 };
3804 }
3805
3806 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3807 LEAVE;
3808 return rc;
3809}
3810
1da177e4
LT		 3811/**
3812 * ipr_eh_dev_reset - Reset the device
3813 * @scsi_cmd: scsi command struct
3814 *
3815 * This function issues a device reset to the affected device.
3816 * A LUN reset will be sent to the device first. If that does
3817 * not work, a target reset will be sent.
3818 *
3819 * Return value:
3820 * SUCCESS / FAILED
3821 **/
94d0e7b8 3822static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 3823{
3824 struct ipr_cmnd *ipr_cmd;
3825 struct ipr_ioa_cfg *ioa_cfg;
3826 struct ipr_resource_entry *res;
35a39691
BK		 3827 struct ata_port *ap;
3828 int rc = 0;
1da177e4
LT		 3829
3830 ENTER;
3831 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3832 res = scsi_cmd->device->hostdata;
3833
eeb88307 3834 if (!res)
1da177e4
LT		 3835 return FAILED;
3836
3837 /*
3838 * If we are currently going through reset/reload, return failed. This will force the
3839 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3840 * reset to complete
3841 */
3842 if (ioa_cfg->in_reset_reload)
3843 return FAILED;
3844 if (ioa_cfg->ioa_is_dead)
3845 return FAILED;
3846
3847 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3848 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3849 if (ipr_cmd->scsi_cmd)
3850 ipr_cmd->done = ipr_scsi_eh_done;
24d6f2b5
BK		 3851 if (ipr_cmd->qc)
3852 ipr_cmd->done = ipr_sata_eh_done;
7402ecef
BK		 3853 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3854 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3855 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3856 }
1da177e4
LT		 3857 }
3858 }
3859
3860 res->resetting_device = 1;
fb3ed3cb 3861 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 3862
3863 if (ipr_is_gata(res) && res->sata_port) {
3864 ap = res->sata_port->ap;
3865 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3866 ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL);
3867 spin_lock_irq(scsi_cmd->device->host->host_lock);
3868 } else
3869 rc = ipr_device_reset(ioa_cfg, res);
1da177e4
LT		 3870 res->resetting_device = 0;
3871
1da177e4 3872 LEAVE;
c6513096 3873 return (rc ? FAILED : SUCCESS);
1da177e4
LT		 3874}
3875
94d0e7b8
JG		 3876static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3877{
3878 int rc;
3879
3880 spin_lock_irq(cmd->device->host->host_lock);
3881 rc = __ipr_eh_dev_reset(cmd);
3882 spin_unlock_irq(cmd->device->host->host_lock);
3883
3884 return rc;
3885}
3886
1da177e4
LT		 3887/**
3888 * ipr_bus_reset_done - Op done function for bus reset.
3889 * @ipr_cmd: ipr command struct
3890 *
3891 * This function is the op done function for a bus reset
3892 *
3893 * Return value:
3894 * none
3895 **/
3896static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
3897{
3898 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3899 struct ipr_resource_entry *res;
3900
3901 ENTER;
3902 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3903 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
3904 sizeof(res->cfgte.res_handle))) {
3905 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
3906 break;
3907 }
3908 }
3909
3910 /*
3911 * If abort has not completed, indicate the reset has, else call the
3912 * abort's done function to wake the sleeping eh thread
3913 */
3914 if (ipr_cmd->sibling->sibling)
3915 ipr_cmd->sibling->sibling = NULL;
3916 else
3917 ipr_cmd->sibling->done(ipr_cmd->sibling);
3918
3919 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3920 LEAVE;
3921}
3922
3923/**
3924 * ipr_abort_timeout - An abort task has timed out
3925 * @ipr_cmd: ipr command struct
3926 *
3927 * This function handles when an abort task times out. If this
3928 * happens we issue a bus reset since we have resources tied
3929 * up that must be freed before returning to the midlayer.
3930 *
3931 * Return value:
3932 * none
3933 **/
3934static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
3935{
3936 struct ipr_cmnd *reset_cmd;
3937 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3938 struct ipr_cmd_pkt *cmd_pkt;
3939 unsigned long lock_flags = 0;
3940
3941 ENTER;
3942 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3943 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
3944 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3945 return;
3946 }
3947
fb3ed3cb 3948 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 3949 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3950 ipr_cmd->sibling = reset_cmd;
3951 reset_cmd->sibling = ipr_cmd;
3952 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
3953 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
3954 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3955 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3956 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
3957
3958 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3959 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3960 LEAVE;
3961}
3962
3963/**
3964 * ipr_cancel_op - Cancel specified op
3965 * @scsi_cmd: scsi command struct
3966 *
3967 * This function cancels specified op.
3968 *
3969 * Return value:
3970 * SUCCESS / FAILED
3971 **/
3972static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
3973{
3974 struct ipr_cmnd *ipr_cmd;
3975 struct ipr_ioa_cfg *ioa_cfg;
3976 struct ipr_resource_entry *res;
3977 struct ipr_cmd_pkt *cmd_pkt;
3978 u32 ioasc;
3979 int op_found = 0;
3980
3981 ENTER;
3982 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
3983 res = scsi_cmd->device->hostdata;
3984
8fa728a2
JG		 3985 /* If we are currently going through reset/reload, return failed.
3986 * This will force the mid-layer to call ipr_eh_host_reset,
3987 * which will then go to sleep and wait for the reset to complete
3988 */
3989 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
3990 return FAILED;
04d9768f 3991 if (!res || !ipr_is_gscsi(res))
1da177e4
LT		 3992 return FAILED;
3993
3994 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3995 if (ipr_cmd->scsi_cmd == scsi_cmd) {
3996 ipr_cmd->done = ipr_scsi_eh_done;
3997 op_found = 1;
3998 break;
3999 }
4000 }
4001
4002 if (!op_found)
4003 return SUCCESS;
4004
4005 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4006 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4007 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4008 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4009 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4010 ipr_cmd->u.sdev = scsi_cmd->device;
4011
fb3ed3cb
BK		 4012 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4013 scsi_cmd->cmnd[0]);
1da177e4
LT		 4014 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4015 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4016
4017 /*
4018 * If the abort task timed out and we sent a bus reset, we will get
4019 * one the following responses to the abort
4020 */
4021 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4022 ioasc = 0;
4023 ipr_trace;
4024 }
4025
4026 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
ee0a90fa
BK		 4027 if (!ipr_is_naca_model(res))
4028 res->needs_sync_complete = 1;
1da177e4
LT		 4029
4030 LEAVE;
4031 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4032}
4033
4034/**
4035 * ipr_eh_abort - Abort a single op
4036 * @scsi_cmd: scsi command struct
4037 *
4038 * Return value:
4039 * SUCCESS / FAILED
4040 **/
4041static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4042{
8fa728a2
JG		 4043 unsigned long flags;
4044 int rc;
1da177e4
LT		 4045
4046 ENTER;
1da177e4 4047
8fa728a2
JG		 4048 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4049 rc = ipr_cancel_op(scsi_cmd);
4050 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 4051
4052 LEAVE;
8fa728a2 4053 return rc;
1da177e4
LT		 4054}
4055
4056/**
4057 * ipr_handle_other_interrupt - Handle "other" interrupts
4058 * @ioa_cfg: ioa config struct
4059 * @int_reg: interrupt register
4060 *
4061 * Return value:
4062 * IRQ_NONE / IRQ_HANDLED
4063 **/
4064static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4065 volatile u32 int_reg)
4066{
4067 irqreturn_t rc = IRQ_HANDLED;
4068
4069 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4070 /* Mask the interrupt */
4071 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4072
4073 /* Clear the interrupt */
4074 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4075 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4076
4077 list_del(&ioa_cfg->reset_cmd->queue);
4078 del_timer(&ioa_cfg->reset_cmd->timer);
4079 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4080 } else {
4081 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4082 ioa_cfg->ioa_unit_checked = 1;
4083 else
4084 dev_err(&ioa_cfg->pdev->dev,
4085 "Permanent IOA failure. 0x%08X\n", int_reg);
4086
4087 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4088 ioa_cfg->sdt_state = GET_DUMP;
4089
4090 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4091 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4092 }
4093
4094 return rc;
4095}
4096
4097/**
4098 * ipr_isr - Interrupt service routine
4099 * @irq: irq number
4100 * @devp: pointer to ioa config struct
1da177e4
LT		 4101 *
4102 * Return value:
4103 * IRQ_NONE / IRQ_HANDLED
4104 **/
7d12e780 4105static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4
LT		 4106{
4107 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4108 unsigned long lock_flags = 0;
4109 volatile u32 int_reg, int_mask_reg;
4110 u32 ioasc;
4111 u16 cmd_index;
4112 struct ipr_cmnd *ipr_cmd;
4113 irqreturn_t rc = IRQ_NONE;
4114
4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4116
4117 /* If interrupts are disabled, ignore the interrupt */
4118 if (!ioa_cfg->allow_interrupts) {
4119 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4120 return IRQ_NONE;
4121 }
4122
4123 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4124 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4125
4126 /* If an interrupt on the adapter did not occur, ignore it */
4127 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4128 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4129 return IRQ_NONE;
4130 }
4131
4132 while (1) {
4133 ipr_cmd = NULL;
4134
4135 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4136 ioa_cfg->toggle_bit) {
4137
4138 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4139 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4140
4141 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4142 ioa_cfg->errors_logged++;
4143 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4144
4145 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4146 ioa_cfg->sdt_state = GET_DUMP;
4147
4148 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4150 return IRQ_HANDLED;
4151 }
4152
4153 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4154
4155 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4156
4157 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4158
4159 list_del(&ipr_cmd->queue);
4160 del_timer(&ipr_cmd->timer);
4161 ipr_cmd->done(ipr_cmd);
4162
4163 rc = IRQ_HANDLED;
4164
4165 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4166 ioa_cfg->hrrq_curr++;
4167 } else {
4168 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4169 ioa_cfg->toggle_bit ^= 1u;
4170 }
4171 }
4172
4173 if (ipr_cmd != NULL) {
4174 /* Clear the PCI interrupt */
4175 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4176 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4177 } else
4178 break;
4179 }
4180
4181 if (unlikely(rc == IRQ_NONE))
4182 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4183
4184 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4185 return rc;
4186}
4187
4188/**
4189 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4190 * @ioa_cfg: ioa config struct
4191 * @ipr_cmd: ipr command struct
4192 *
4193 * Return value:
4194 * 0 on success / -1 on failure
4195 **/
4196static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4197 struct ipr_cmnd *ipr_cmd)
4198{
4199 int i;
4200 struct scatterlist *sglist;
4201 u32 length;
4202 u32 ioadl_flags = 0;
4203 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4204 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4205 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4206
4207 length = scsi_cmd->request_bufflen;
4208
4209 if (length == 0)
4210 return 0;
4211
4212 if (scsi_cmd->use_sg) {
4213 ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev,
4214 scsi_cmd->request_buffer,
4215 scsi_cmd->use_sg,
4216 scsi_cmd->sc_data_direction);
4217
4218 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4219 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4220 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4221 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4222 ioarcb->write_ioadl_len =
4223 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4224 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4225 ioadl_flags = IPR_IOADL_FLAGS_READ;
4226 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4227 ioarcb->read_ioadl_len =
4228 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4229 }
4230
4231 sglist = scsi_cmd->request_buffer;
4232
4233 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
4234 ioadl[i].flags_and_data_len =
4235 cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i]));
4236 ioadl[i].address =
4237 cpu_to_be32(sg_dma_address(&sglist[i]));
4238 }
4239
4240 if (likely(ipr_cmd->dma_use_sg)) {
4241 ioadl[i-1].flags_and_data_len |=
4242 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4243 return 0;
4244 } else
4245 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4246 } else {
4247 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4248 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4249 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4250 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4251 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4252 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4253 ioadl_flags = IPR_IOADL_FLAGS_READ;
4254 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4255 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4256 }
4257
4258 ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev,
4259 scsi_cmd->request_buffer, length,
4260 scsi_cmd->sc_data_direction);
4261
4262 if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) {
4263 ipr_cmd->dma_use_sg = 1;
4264 ioadl[0].flags_and_data_len =
4265 cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST);
4266 ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle);
4267 return 0;
4268 } else
4269 dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n");
4270 }
4271
4272 return -1;
4273}
4274
4275/**
4276 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4277 * @scsi_cmd: scsi command struct
4278 *
4279 * Return value:
4280 * task attributes
4281 **/
4282static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4283{
4284 u8 tag[2];
4285 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4286
4287 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4288 switch (tag[0]) {
4289 case MSG_SIMPLE_TAG:
4290 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4291 break;
4292 case MSG_HEAD_TAG:
4293 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4294 break;
4295 case MSG_ORDERED_TAG:
4296 rc = IPR_FLAGS_LO_ORDERED_TASK;
4297 break;
4298 };
4299 }
4300
4301 return rc;
4302}
4303
4304/**
4305 * ipr_erp_done - Process completion of ERP for a device
4306 * @ipr_cmd: ipr command struct
4307 *
4308 * This function copies the sense buffer into the scsi_cmd
4309 * struct and pushes the scsi_done function.
4310 *
4311 * Return value:
4312 * nothing
4313 **/
4314static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4315{
4316 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4317 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4318 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4319 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4320
4321 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4322 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 4323 scmd_printk(KERN_ERR, scsi_cmd,
4324 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 4325 } else {
4326 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4327 SCSI_SENSE_BUFFERSIZE);
4328 }
4329
4330 if (res) {
ee0a90fa
BK		 4331 if (!ipr_is_naca_model(res))
4332 res->needs_sync_complete = 1;
1da177e4
LT		 4333 res->in_erp = 0;
4334 }
4335 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4336 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4337 scsi_cmd->scsi_done(scsi_cmd);
4338}
4339
4340/**
4341 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4342 * @ipr_cmd: ipr command struct
4343 *
4344 * Return value:
4345 * none
4346 **/
4347static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4348{
4349 struct ipr_ioarcb *ioarcb;
4350 struct ipr_ioasa *ioasa;
4351
4352 ioarcb = &ipr_cmd->ioarcb;
4353 ioasa = &ipr_cmd->ioasa;
4354
4355 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4356 ioarcb->write_data_transfer_length = 0;
4357 ioarcb->read_data_transfer_length = 0;
4358 ioarcb->write_ioadl_len = 0;
4359 ioarcb->read_ioadl_len = 0;
4360 ioasa->ioasc = 0;
4361 ioasa->residual_data_len = 0;
4362}
4363
4364/**
4365 * ipr_erp_request_sense - Send request sense to a device
4366 * @ipr_cmd: ipr command struct
4367 *
4368 * This function sends a request sense to a device as a result
4369 * of a check condition.
4370 *
4371 * Return value:
4372 * nothing
4373 **/
4374static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4375{
4376 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4377 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4378
4379 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4380 ipr_erp_done(ipr_cmd);
4381 return;
4382 }
4383
4384 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4385
4386 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4387 cmd_pkt->cdb[0] = REQUEST_SENSE;
4388 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4389 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4390 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4391 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4392
4393 ipr_cmd->ioadl[0].flags_and_data_len =
4394 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4395 ipr_cmd->ioadl[0].address =
4396 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4397
4398 ipr_cmd->ioarcb.read_ioadl_len =
4399 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4400 ipr_cmd->ioarcb.read_data_transfer_length =
4401 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4402
4403 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4404 IPR_REQUEST_SENSE_TIMEOUT * 2);
4405}
4406
4407/**
4408 * ipr_erp_cancel_all - Send cancel all to a device
4409 * @ipr_cmd: ipr command struct
4410 *
4411 * This function sends a cancel all to a device to clear the
4412 * queue. If we are running TCQ on the device, QERR is set to 1,
4413 * which means all outstanding ops have been dropped on the floor.
4414 * Cancel all will return them to us.
4415 *
4416 * Return value:
4417 * nothing
4418 **/
4419static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4420{
4421 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4422 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4423 struct ipr_cmd_pkt *cmd_pkt;
4424
4425 res->in_erp = 1;
4426
4427 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4428
4429 if (!scsi_get_tag_type(scsi_cmd->device)) {
4430 ipr_erp_request_sense(ipr_cmd);
4431 return;
4432 }
4433
4434 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4435 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4436 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4437
4438 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4439 IPR_CANCEL_ALL_TIMEOUT);
4440}
4441
4442/**
4443 * ipr_dump_ioasa - Dump contents of IOASA
4444 * @ioa_cfg: ioa config struct
4445 * @ipr_cmd: ipr command struct
fe964d0a 4446 * @res: resource entry struct
1da177e4
LT		 4447 *
4448 * This function is invoked by the interrupt handler when ops
4449 * fail. It will log the IOASA if appropriate. Only called
4450 * for GPDD ops.
4451 *
4452 * Return value:
4453 * none
4454 **/
4455static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 4456 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 4457{
4458 int i;
4459 u16 data_len;
b0692dd4 4460 u32 ioasc, fd_ioasc;
1da177e4
LT		 4461 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4462 __be32 *ioasa_data = (__be32 *)ioasa;
4463 int error_index;
4464
4465 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
b0692dd4 4466 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 4467
4468 if (0 == ioasc)
4469 return;
4470
4471 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4472 return;
4473
b0692dd4
BK		 4474 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4475 error_index = ipr_get_error(fd_ioasc);
4476 else
4477 error_index = ipr_get_error(ioasc);
1da177e4
LT		 4478
4479 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4480 /* Don't log an error if the IOA already logged one */
4481 if (ioasa->ilid != 0)
4482 return;
4483
cc9bd5d4
BK		 4484 if (!ipr_is_gscsi(res))
4485 return;
4486
1da177e4
LT		 4487 if (ipr_error_table[error_index].log_ioasa == 0)
4488 return;
4489 }
4490
fe964d0a 4491 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 4492
4493 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4494 data_len = sizeof(struct ipr_ioasa);
4495 else
4496 data_len = be16_to_cpu(ioasa->ret_stat_len);
4497
4498 ipr_err("IOASA Dump:\n");
4499
4500 for (i = 0; i < data_len / 4; i += 4) {
4501 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4502 be32_to_cpu(ioasa_data[i]),
4503 be32_to_cpu(ioasa_data[i+1]),
4504 be32_to_cpu(ioasa_data[i+2]),
4505 be32_to_cpu(ioasa_data[i+3]));
4506 }
4507}
4508
4509/**
4510 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4511 * @ioasa: IOASA
4512 * @sense_buf: sense data buffer
4513 *
4514 * Return value:
4515 * none
4516 **/
4517static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4518{
4519 u32 failing_lba;
4520 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4521 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4522 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4523 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4524
4525 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4526
4527 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4528 return;
4529
4530 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4531
4532 if (ipr_is_vset_device(res) &&
4533 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4534 ioasa->u.vset.failing_lba_hi != 0) {
4535 sense_buf[0] = 0x72;
4536 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4537 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4538 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4539
4540 sense_buf[7] = 12;
4541 sense_buf[8] = 0;
4542 sense_buf[9] = 0x0A;
4543 sense_buf[10] = 0x80;
4544
4545 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4546
4547 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4548 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4549 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4550 sense_buf[15] = failing_lba & 0x000000ff;
4551
4552 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4553
4554 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4555 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4556 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4557 sense_buf[19] = failing_lba & 0x000000ff;
4558 } else {
4559 sense_buf[0] = 0x70;
4560 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4561 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4562 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4563
4564 /* Illegal request */
4565 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4566 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4567 sense_buf[7] = 10; /* additional length */
4568
4569 /* IOARCB was in error */
4570 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4571 sense_buf[15] = 0xC0;
4572 else /* Parameter data was invalid */
4573 sense_buf[15] = 0x80;
4574
4575 sense_buf[16] =
4576 ((IPR_FIELD_POINTER_MASK &
4577 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4578 sense_buf[17] =
4579 (IPR_FIELD_POINTER_MASK &
4580 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4581 } else {
4582 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4583 if (ipr_is_vset_device(res))
4584 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4585 else
4586 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4587
4588 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4589 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4590 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4591 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4592 sense_buf[6] = failing_lba & 0x000000ff;
4593 }
4594
4595 sense_buf[7] = 6; /* additional length */
4596 }
4597 }
4598}
4599
ee0a90fa
BK		 4600/**
4601 * ipr_get_autosense - Copy autosense data to sense buffer
4602 * @ipr_cmd: ipr command struct
4603 *
4604 * This function copies the autosense buffer to the buffer
4605 * in the scsi_cmd, if there is autosense available.
4606 *
4607 * Return value:
4608 * 1 if autosense was available / 0 if not
4609 **/
4610static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4611{
4612 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4613
117d2ce1 4614 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 4615 return 0;
4616
4617 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4618 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4619 SCSI_SENSE_BUFFERSIZE));
4620 return 1;
4621}
4622
1da177e4
LT		 4623/**
4624 * ipr_erp_start - Process an error response for a SCSI op
4625 * @ioa_cfg: ioa config struct
4626 * @ipr_cmd: ipr command struct
4627 *
4628 * This function determines whether or not to initiate ERP
4629 * on the affected device.
4630 *
4631 * Return value:
4632 * nothing
4633 **/
4634static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4635 struct ipr_cmnd *ipr_cmd)
4636{
4637 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4638 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4639 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4640
4641 if (!res) {
4642 ipr_scsi_eh_done(ipr_cmd);
4643 return;
4644 }
4645
cc9bd5d4 4646 if (!ipr_is_gscsi(res))
1da177e4
LT		 4647 ipr_gen_sense(ipr_cmd);
4648
cc9bd5d4
BK		 4649 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4650
1da177e4
LT		 4651 switch (ioasc & IPR_IOASC_IOASC_MASK) {
4652 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 4653 if (ipr_is_naca_model(res))
4654 scsi_cmd->result |= (DID_ABORT << 16);
4655 else
4656 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 4657 break;
4658 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 4659 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 4660 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4661 break;
4662 case IPR_IOASC_HW_SEL_TIMEOUT:
4663 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 4664 if (!ipr_is_naca_model(res))
4665 res->needs_sync_complete = 1;
1da177e4
LT		 4666 break;
4667 case IPR_IOASC_SYNC_REQUIRED:
4668 if (!res->in_erp)
4669 res->needs_sync_complete = 1;
4670 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4671 break;
4672 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 4673 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 4674 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4675 break;
4676 case IPR_IOASC_BUS_WAS_RESET:
4677 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4678 /*
4679 * Report the bus reset and ask for a retry. The device
4680 * will give CC/UA the next command.
4681 */
4682 if (!res->resetting_device)
4683 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4684 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 4685 if (!ipr_is_naca_model(res))
4686 res->needs_sync_complete = 1;
1da177e4
LT		 4687 break;
4688 case IPR_IOASC_HW_DEV_BUS_STATUS:
4689 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4690 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 4691 if (!ipr_get_autosense(ipr_cmd)) {
4692 if (!ipr_is_naca_model(res)) {
4693 ipr_erp_cancel_all(ipr_cmd);
4694 return;
4695 }
4696 }
1da177e4 4697 }
ee0a90fa
BK		 4698 if (!ipr_is_naca_model(res))
4699 res->needs_sync_complete = 1;
1da177e4
LT		 4700 break;
4701 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4702 break;
4703 default:
5b7304fb
BK		 4704 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4705 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 4706 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 4707 res->needs_sync_complete = 1;
4708 break;
4709 }
4710
4711 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4712 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4713 scsi_cmd->scsi_done(scsi_cmd);
4714}
4715
4716/**
4717 * ipr_scsi_done - mid-layer done function
4718 * @ipr_cmd: ipr command struct
4719 *
4720 * This function is invoked by the interrupt handler for
4721 * ops generated by the SCSI mid-layer
4722 *
4723 * Return value:
4724 * none
4725 **/
4726static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4727{
4728 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4729 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4730 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4731
4732 scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len);
4733
4734 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4735 ipr_unmap_sglist(ioa_cfg, ipr_cmd);
4736 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4737 scsi_cmd->scsi_done(scsi_cmd);
4738 } else
4739 ipr_erp_start(ioa_cfg, ipr_cmd);
4740}
4741
1da177e4
LT		 4742/**
4743 * ipr_queuecommand - Queue a mid-layer request
4744 * @scsi_cmd: scsi command struct
4745 * @done: done function
4746 *
4747 * This function queues a request generated by the mid-layer.
4748 *
4749 * Return value:
4750 * 0 on success
4751 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4752 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4753 **/
4754static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4755 void (*done) (struct scsi_cmnd *))
4756{
4757 struct ipr_ioa_cfg *ioa_cfg;
4758 struct ipr_resource_entry *res;
4759 struct ipr_ioarcb *ioarcb;
4760 struct ipr_cmnd *ipr_cmd;
4761 int rc = 0;
4762
4763 scsi_cmd->scsi_done = done;
4764 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4765 res = scsi_cmd->device->hostdata;
4766 scsi_cmd->result = (DID_OK << 16);
4767
4768 /*
4769 * We are currently blocking all devices due to a host reset
4770 * We have told the host to stop giving us new requests, but
4771 * ERP ops don't count. FIXME
4772 */
4773 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4774 return SCSI_MLQUEUE_HOST_BUSY;
4775
4776 /*
4777 * FIXME - Create scsi_set_host_offline interface
4778 * and the ioa_is_dead check can be removed
4779 */
4780 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4781 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4782 scsi_cmd->result = (DID_NO_CONNECT << 16);
4783 scsi_cmd->scsi_done(scsi_cmd);
4784 return 0;
4785 }
4786
35a39691
BK		 4787 if (ipr_is_gata(res) && res->sata_port)
4788 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4789
1da177e4
LT		 4790 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4791 ioarcb = &ipr_cmd->ioarcb;
4792 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4793
4794 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4795 ipr_cmd->scsi_cmd = scsi_cmd;
4796 ioarcb->res_handle = res->cfgte.res_handle;
4797 ipr_cmd->done = ipr_scsi_done;
4798 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4799
4800 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4801 if (scsi_cmd->underflow == 0)
4802 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4803
4804 if (res->needs_sync_complete) {
4805 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4806 res->needs_sync_complete = 0;
4807 }
4808
4809 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4810 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4811 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4812 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4813 }
4814
4815 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4816 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4817 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4818
1da177e4
LT		 4819 if (likely(rc == 0))
4820 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4821
4822 if (likely(rc == 0)) {
4823 mb();
4824 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4825 ioa_cfg->regs.ioarrin_reg);
4826 } else {
4827 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4828 return SCSI_MLQUEUE_HOST_BUSY;
4829 }
4830
4831 return 0;
4832}
4833
35a39691
BK		 4834/**
4835 * ipr_ioctl - IOCTL handler
4836 * @sdev: scsi device struct
4837 * @cmd: IOCTL cmd
4838 * @arg: IOCTL arg
4839 *
4840 * Return value:
4841 * 0 on success / other on failure
4842 **/
bd705f2d 4843static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 4844{
4845 struct ipr_resource_entry *res;
4846
4847 res = (struct ipr_resource_entry *)sdev->hostdata;
4848 if (res && ipr_is_gata(res))
4849 return ata_scsi_ioctl(sdev, cmd, arg);
4850
4851 return -EINVAL;
4852}
4853
1da177e4
LT		 4854/**
4855 * ipr_info - Get information about the card/driver
4856 * @scsi_host: scsi host struct
4857 *
4858 * Return value:
4859 * pointer to buffer with description string
4860 **/
4861static const char * ipr_ioa_info(struct Scsi_Host *host)
4862{
4863 static char buffer[512];
4864 struct ipr_ioa_cfg *ioa_cfg;
4865 unsigned long lock_flags = 0;
4866
4867 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4868
4869 spin_lock_irqsave(host->host_lock, lock_flags);
4870 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4871 spin_unlock_irqrestore(host->host_lock, lock_flags);
4872
4873 return buffer;
4874}
4875
4876static struct scsi_host_template driver_template = {
4877 .module = THIS_MODULE,
4878 .name = "IPR",
4879 .info = ipr_ioa_info,
35a39691 4880 .ioctl = ipr_ioctl,
1da177e4
LT		 4881 .queuecommand = ipr_queuecommand,
4882 .eh_abort_handler = ipr_eh_abort,
4883 .eh_device_reset_handler = ipr_eh_dev_reset,
4884 .eh_host_reset_handler = ipr_eh_host_reset,
4885 .slave_alloc = ipr_slave_alloc,
4886 .slave_configure = ipr_slave_configure,
4887 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 4888 .target_alloc = ipr_target_alloc,
4889 .target_destroy = ipr_target_destroy,
1da177e4
LT		 4890 .change_queue_depth = ipr_change_queue_depth,
4891 .change_queue_type = ipr_change_queue_type,
4892 .bios_param = ipr_biosparam,
4893 .can_queue = IPR_MAX_COMMANDS,
4894 .this_id = -1,
4895 .sg_tablesize = IPR_MAX_SGLIST,
4896 .max_sectors = IPR_IOA_MAX_SECTORS,
4897 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
4898 .use_clustering = ENABLE_CLUSTERING,
4899 .shost_attrs = ipr_ioa_attrs,
4900 .sdev_attrs = ipr_dev_attrs,
4901 .proc_name = IPR_NAME
4902};
4903
35a39691
BK		 4904/**
4905 * ipr_ata_phy_reset - libata phy_reset handler
4906 * @ap: ata port to reset
4907 *
4908 **/
4909static void ipr_ata_phy_reset(struct ata_port *ap)
4910{
4911 unsigned long flags;
4912 struct ipr_sata_port *sata_port = ap->private_data;
4913 struct ipr_resource_entry *res = sata_port->res;
4914 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4915 int rc;
4916
4917 ENTER;
4918 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4919 while(ioa_cfg->in_reset_reload) {
4920 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4921 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4922 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4923 }
4924
4925 if (!ioa_cfg->allow_cmds)
4926 goto out_unlock;
4927
4928 rc = ipr_device_reset(ioa_cfg, res);
4929
4930 if (rc) {
4931 ap->ops->port_disable(ap);
4932 goto out_unlock;
4933 }
4934
4935 switch(res->cfgte.proto) {
4936 case IPR_PROTO_SATA:
4937 case IPR_PROTO_SAS_STP:
4938 ap->device[0].class = ATA_DEV_ATA;
4939 break;
4940 case IPR_PROTO_SATA_ATAPI:
4941 case IPR_PROTO_SAS_STP_ATAPI:
4942 ap->device[0].class = ATA_DEV_ATAPI;
4943 break;
4944 default:
4945 ap->device[0].class = ATA_DEV_UNKNOWN;
4946 ap->ops->port_disable(ap);
4947 break;
4948 };
4949
4950out_unlock:
4951 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4952 LEAVE;
4953}
4954
4955/**
4956 * ipr_ata_post_internal - Cleanup after an internal command
4957 * @qc: ATA queued command
4958 *
4959 * Return value:
4960 * none
4961 **/
4962static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
4963{
4964 struct ipr_sata_port *sata_port = qc->ap->private_data;
4965 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4966 struct ipr_cmnd *ipr_cmd;
4967 unsigned long flags;
4968
4969 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
73d98ff0
BK		 4970 while(ioa_cfg->in_reset_reload) {
4971 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4972 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4973 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4974 }
4975
35a39691
BK		 4976 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4977 if (ipr_cmd->qc == qc) {
4978 ipr_device_reset(ioa_cfg, sata_port->res);
4979 break;
4980 }
4981 }
4982 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4983}
4984
4985/**
4986 * ipr_tf_read - Read the current ATA taskfile for the ATA port
4987 * @ap: ATA port
4988 * @tf: destination ATA taskfile
4989 *
4990 * Return value:
4991 * none
4992 **/
4993static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
4994{
4995 struct ipr_sata_port *sata_port = ap->private_data;
4996 struct ipr_ioasa_gata *g = &sata_port->ioasa;
4997
4998 tf->feature = g->error;
4999 tf->nsect = g->nsect;
5000 tf->lbal = g->lbal;
5001 tf->lbam = g->lbam;
5002 tf->lbah = g->lbah;
5003 tf->device = g->device;
5004 tf->command = g->status;
5005 tf->hob_nsect = g->hob_nsect;
5006 tf->hob_lbal = g->hob_lbal;
5007 tf->hob_lbam = g->hob_lbam;
5008 tf->hob_lbah = g->hob_lbah;
5009 tf->ctl = g->alt_status;
5010}
5011
5012/**
5013 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5014 * @regs: destination
5015 * @tf: source ATA taskfile
5016 *
5017 * Return value:
5018 * none
5019 **/
5020static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5021 struct ata_taskfile *tf)
5022{
5023 regs->feature = tf->feature;
5024 regs->nsect = tf->nsect;
5025 regs->lbal = tf->lbal;
5026 regs->lbam = tf->lbam;
5027 regs->lbah = tf->lbah;
5028 regs->device = tf->device;
5029 regs->command = tf->command;
5030 regs->hob_feature = tf->hob_feature;
5031 regs->hob_nsect = tf->hob_nsect;
5032 regs->hob_lbal = tf->hob_lbal;
5033 regs->hob_lbam = tf->hob_lbam;
5034 regs->hob_lbah = tf->hob_lbah;
5035 regs->ctl = tf->ctl;
5036}
5037
5038/**
5039 * ipr_sata_done - done function for SATA commands
5040 * @ipr_cmd: ipr command struct
5041 *
5042 * This function is invoked by the interrupt handler for
5043 * ops generated by the SCSI mid-layer to SATA devices
5044 *
5045 * Return value:
5046 * none
5047 **/
5048static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5049{
5050 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5051 struct ata_queued_cmd *qc = ipr_cmd->qc;
5052 struct ipr_sata_port *sata_port = qc->ap->private_data;
5053 struct ipr_resource_entry *res = sata_port->res;
5054 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5055
5056 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5057 sizeof(struct ipr_ioasa_gata));
5058 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5059
5060 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5061 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5062 res->cfgte.res_addr.target);
5063
5064 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5065 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5066 else
5067 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5068 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5069 ata_qc_complete(qc);
5070}
5071
5072/**
5073 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5074 * @ipr_cmd: ipr command struct
5075 * @qc: ATA queued command
5076 *
5077 **/
5078static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5079 struct ata_queued_cmd *qc)
5080{
5081 u32 ioadl_flags = 0;
5082 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5083 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5084 int len = qc->nbytes + qc->pad_len;
5085 struct scatterlist *sg;
5086
5087 if (len == 0)
5088 return;
5089
5090 if (qc->dma_dir == DMA_TO_DEVICE) {
5091 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5092 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5093 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5094 ioarcb->write_ioadl_len =
5095 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5096 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5097 ioadl_flags = IPR_IOADL_FLAGS_READ;
5098 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5099 ioarcb->read_ioadl_len =
5100 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5101 }
5102
5103 ata_for_each_sg(sg, qc) {
5104 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5105 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5106 if (ata_sg_is_last(sg, qc))
5107 ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5108 else
5109 ioadl++;
5110 }
5111}
5112
5113/**
5114 * ipr_qc_issue - Issue a SATA qc to a device
5115 * @qc: queued command
5116 *
5117 * Return value:
5118 * 0 if success
5119 **/
5120static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5121{
5122 struct ata_port *ap = qc->ap;
5123 struct ipr_sata_port *sata_port = ap->private_data;
5124 struct ipr_resource_entry *res = sata_port->res;
5125 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5126 struct ipr_cmnd *ipr_cmd;
5127 struct ipr_ioarcb *ioarcb;
5128 struct ipr_ioarcb_ata_regs *regs;
5129
5130 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
0feeed82 5131 return AC_ERR_SYSTEM;
35a39691
BK		 5132
5133 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5134 ioarcb = &ipr_cmd->ioarcb;
5135 regs = &ioarcb->add_data.u.regs;
5136
5137 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5138 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5139
5140 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5141 ipr_cmd->qc = qc;
5142 ipr_cmd->done = ipr_sata_done;
5143 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5144 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5145 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5146 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5147 ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem;
5148
5149 ipr_build_ata_ioadl(ipr_cmd, qc);
5150 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5151 ipr_copy_sata_tf(regs, &qc->tf);
5152 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5153 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5154
5155 switch (qc->tf.protocol) {
5156 case ATA_PROT_NODATA:
5157 case ATA_PROT_PIO:
5158 break;
5159
5160 case ATA_PROT_DMA:
5161 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5162 break;
5163
5164 case ATA_PROT_ATAPI:
5165 case ATA_PROT_ATAPI_NODATA:
5166 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5167 break;
5168
5169 case ATA_PROT_ATAPI_DMA:
5170 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5171 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5172 break;
5173
5174 default:
5175 WARN_ON(1);
0feeed82 5176 return AC_ERR_INVALID;
35a39691
BK		 5177 }
5178
5179 mb();
5180 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5181 ioa_cfg->regs.ioarrin_reg);
5182 return 0;
5183}
5184
5185/**
5186 * ipr_ata_check_status - Return last ATA status
5187 * @ap: ATA port
5188 *
5189 * Return value:
5190 * ATA status
5191 **/
5192static u8 ipr_ata_check_status(struct ata_port *ap)
5193{
5194 struct ipr_sata_port *sata_port = ap->private_data;
5195 return sata_port->ioasa.status;
5196}
5197
5198/**
5199 * ipr_ata_check_altstatus - Return last ATA altstatus
5200 * @ap: ATA port
5201 *
5202 * Return value:
5203 * Alt ATA status
5204 **/
5205static u8 ipr_ata_check_altstatus(struct ata_port *ap)
5206{
5207 struct ipr_sata_port *sata_port = ap->private_data;
5208 return sata_port->ioasa.alt_status;
5209}
5210
5211static struct ata_port_operations ipr_sata_ops = {
5212 .port_disable = ata_port_disable,
5213 .check_status = ipr_ata_check_status,
5214 .check_altstatus = ipr_ata_check_altstatus,
5215 .dev_select = ata_noop_dev_select,
5216 .phy_reset = ipr_ata_phy_reset,
5217 .post_internal_cmd = ipr_ata_post_internal,
5218 .tf_read = ipr_tf_read,
5219 .qc_prep = ata_noop_qc_prep,
5220 .qc_issue = ipr_qc_issue,
5221 .port_start = ata_sas_port_start,
5222 .port_stop = ata_sas_port_stop
5223};
5224
5225static struct ata_port_info sata_port_info = {
5226 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5227 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5228 .pio_mask = 0x10, /* pio4 */
5229 .mwdma_mask = 0x07,
5230 .udma_mask = 0x7f, /* udma0-6 */
5231 .port_ops = &ipr_sata_ops
5232};
5233
1da177e4
LT		 5234#ifdef CONFIG_PPC_PSERIES
5235static const u16 ipr_blocked_processors[] = {
5236 PV_NORTHSTAR,
5237 PV_PULSAR,
5238 PV_POWER4,
5239 PV_ICESTAR,
5240 PV_SSTAR,
5241 PV_POWER4p,
5242 PV_630,
5243 PV_630p
5244};
5245
5246/**
5247 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5248 * @ioa_cfg: ioa cfg struct
5249 *
5250 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5251 * certain pSeries hardware. This function determines if the given
5252 * adapter is in one of these confgurations or not.
5253 *
5254 * Return value:
5255 * 1 if adapter is not supported / 0 if adapter is supported
5256 **/
5257static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5258{
5259 u8 rev_id;
5260 int i;
5261
5262 if (ioa_cfg->type == 0x5702) {
5263 if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID,
5264 &rev_id) == PCIBIOS_SUCCESSFUL) {
5265 if (rev_id < 4) {
5266 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5267 if (__is_processor(ipr_blocked_processors[i]))
5268 return 1;
5269 }
5270 }
5271 }
5272 }
5273 return 0;
5274}
5275#else
5276#define ipr_invalid_adapter(ioa_cfg) 0
5277#endif
5278
5279/**
5280 * ipr_ioa_bringdown_done - IOA bring down completion.
5281 * @ipr_cmd: ipr command struct
5282 *
5283 * This function processes the completion of an adapter bring down.
5284 * It wakes any reset sleepers.
5285 *
5286 * Return value:
5287 * IPR_RC_JOB_RETURN
5288 **/
5289static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5290{
5291 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5292
5293 ENTER;
5294 ioa_cfg->in_reset_reload = 0;
5295 ioa_cfg->reset_retries = 0;
5296 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5297 wake_up_all(&ioa_cfg->reset_wait_q);
5298
5299 spin_unlock_irq(ioa_cfg->host->host_lock);
5300 scsi_unblock_requests(ioa_cfg->host);
5301 spin_lock_irq(ioa_cfg->host->host_lock);
5302 LEAVE;
5303
5304 return IPR_RC_JOB_RETURN;
5305}
5306
5307/**
5308 * ipr_ioa_reset_done - IOA reset completion.
5309 * @ipr_cmd: ipr command struct
5310 *
5311 * This function processes the completion of an adapter reset.
5312 * It schedules any necessary mid-layer add/removes and
5313 * wakes any reset sleepers.
5314 *
5315 * Return value:
5316 * IPR_RC_JOB_RETURN
5317 **/
5318static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5319{
5320 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5321 struct ipr_resource_entry *res;
5322 struct ipr_hostrcb *hostrcb, *temp;
5323 int i = 0;
5324
5325 ENTER;
5326 ioa_cfg->in_reset_reload = 0;
5327 ioa_cfg->allow_cmds = 1;
5328 ioa_cfg->reset_cmd = NULL;
3d1d0da6 5329 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 5330
5331 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5332 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5333 ipr_trace;
5334 break;
5335 }
5336 }
5337 schedule_work(&ioa_cfg->work_q);
5338
5339 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5340 list_del(&hostrcb->queue);
5341 if (i++ < IPR_NUM_LOG_HCAMS)
5342 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5343 else
5344 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5345 }
5346
5347 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5348
5349 ioa_cfg->reset_retries = 0;
5350 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5351 wake_up_all(&ioa_cfg->reset_wait_q);
5352
5353 spin_unlock_irq(ioa_cfg->host->host_lock);
5354 scsi_unblock_requests(ioa_cfg->host);
5355 spin_lock_irq(ioa_cfg->host->host_lock);
5356
5357 if (!ioa_cfg->allow_cmds)
5358 scsi_block_requests(ioa_cfg->host);
5359
5360 LEAVE;
5361 return IPR_RC_JOB_RETURN;
5362}
5363
5364/**
5365 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5366 * @supported_dev: supported device struct
5367 * @vpids: vendor product id struct
5368 *
5369 * Return value:
5370 * none
5371 **/
5372static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5373 struct ipr_std_inq_vpids *vpids)
5374{
5375 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5376 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5377 supported_dev->num_records = 1;
5378 supported_dev->data_length =
5379 cpu_to_be16(sizeof(struct ipr_supported_device));
5380 supported_dev->reserved = 0;
5381}
5382
5383/**
5384 * ipr_set_supported_devs - Send Set Supported Devices for a device
5385 * @ipr_cmd: ipr command struct
5386 *
5387 * This function send a Set Supported Devices to the adapter
5388 *
5389 * Return value:
5390 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5391 **/
5392static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5393{
5394 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5395 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5396 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5397 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5398 struct ipr_resource_entry *res = ipr_cmd->u.res;
5399
5400 ipr_cmd->job_step = ipr_ioa_reset_done;
5401
5402 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 5403 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 5404 continue;
5405
5406 ipr_cmd->u.res = res;
5407 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5408
5409 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5410 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5411 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5412
5413 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5414 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5415 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5416
5417 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5418 sizeof(struct ipr_supported_device));
5419 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5420 offsetof(struct ipr_misc_cbs, supp_dev));
5421 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5422 ioarcb->write_data_transfer_length =
5423 cpu_to_be32(sizeof(struct ipr_supported_device));
5424
5425 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5426 IPR_SET_SUP_DEVICE_TIMEOUT);
5427
5428 ipr_cmd->job_step = ipr_set_supported_devs;
5429 return IPR_RC_JOB_RETURN;
5430 }
5431
5432 return IPR_RC_JOB_CONTINUE;
5433}
5434
62275040
BK		 5435/**
5436 * ipr_setup_write_cache - Disable write cache if needed
5437 * @ipr_cmd: ipr command struct
5438 *
5439 * This function sets up adapters write cache to desired setting
5440 *
5441 * Return value:
5442 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5443 **/
5444static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5445{
5446 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5447
5448 ipr_cmd->job_step = ipr_set_supported_devs;
5449 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5450 struct ipr_resource_entry, queue);
5451
5452 if (ioa_cfg->cache_state != CACHE_DISABLED)
5453 return IPR_RC_JOB_CONTINUE;
5454
5455 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5456 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5457 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5458 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5459
5460 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5461
5462 return IPR_RC_JOB_RETURN;
5463}
5464
1da177e4
LT		 5465/**
5466 * ipr_get_mode_page - Locate specified mode page
5467 * @mode_pages: mode page buffer
5468 * @page_code: page code to find
5469 * @len: minimum required length for mode page
5470 *
5471 * Return value:
5472 * pointer to mode page / NULL on failure
5473 **/
5474static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5475 u32 page_code, u32 len)
5476{
5477 struct ipr_mode_page_hdr *mode_hdr;
5478 u32 page_length;
5479 u32 length;
5480
5481 if (!mode_pages || (mode_pages->hdr.length == 0))
5482 return NULL;
5483
5484 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5485 mode_hdr = (struct ipr_mode_page_hdr *)
5486 (mode_pages->data + mode_pages->hdr.block_desc_len);
5487
5488 while (length) {
5489 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5490 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5491 return mode_hdr;
5492 break;
5493 } else {
5494 page_length = (sizeof(struct ipr_mode_page_hdr) +
5495 mode_hdr->page_length);
5496 length -= page_length;
5497 mode_hdr = (struct ipr_mode_page_hdr *)
5498 ((unsigned long)mode_hdr + page_length);
5499 }
5500 }
5501 return NULL;
5502}
5503
5504/**
5505 * ipr_check_term_power - Check for term power errors
5506 * @ioa_cfg: ioa config struct
5507 * @mode_pages: IOAFP mode pages buffer
5508 *
5509 * Check the IOAFP's mode page 28 for term power errors
5510 *
5511 * Return value:
5512 * nothing
5513 **/
5514static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5515 struct ipr_mode_pages *mode_pages)
5516{
5517 int i;
5518 int entry_length;
5519 struct ipr_dev_bus_entry *bus;
5520 struct ipr_mode_page28 *mode_page;
5521
5522 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5523 sizeof(struct ipr_mode_page28));
5524
5525 entry_length = mode_page->entry_length;
5526
5527 bus = mode_page->bus;
5528
5529 for (i = 0; i < mode_page->num_entries; i++) {
5530 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5531 dev_err(&ioa_cfg->pdev->dev,
5532 "Term power is absent on scsi bus %d\n",
5533 bus->res_addr.bus);
5534 }
5535
5536 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5537 }
5538}
5539
5540/**
5541 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5542 * @ioa_cfg: ioa config struct
5543 *
5544 * Looks through the config table checking for SES devices. If
5545 * the SES device is in the SES table indicating a maximum SCSI
5546 * bus speed, the speed is limited for the bus.
5547 *
5548 * Return value:
5549 * none
5550 **/
5551static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5552{
5553 u32 max_xfer_rate;
5554 int i;
5555
5556 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5557 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5558 ioa_cfg->bus_attr[i].bus_width);
5559
5560 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5561 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5562 }
5563}
5564
5565/**
5566 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5567 * @ioa_cfg: ioa config struct
5568 * @mode_pages: mode page 28 buffer
5569 *
5570 * Updates mode page 28 based on driver configuration
5571 *
5572 * Return value:
5573 * none
5574 **/
5575static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5576 struct ipr_mode_pages *mode_pages)
5577{
5578 int i, entry_length;
5579 struct ipr_dev_bus_entry *bus;
5580 struct ipr_bus_attributes *bus_attr;
5581 struct ipr_mode_page28 *mode_page;
5582
5583 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5584 sizeof(struct ipr_mode_page28));
5585
5586 entry_length = mode_page->entry_length;
5587
5588 /* Loop for each device bus entry */
5589 for (i = 0, bus = mode_page->bus;
5590 i < mode_page->num_entries;
5591 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5592 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5593 dev_err(&ioa_cfg->pdev->dev,
5594 "Invalid resource address reported: 0x%08X\n",
5595 IPR_GET_PHYS_LOC(bus->res_addr));
5596 continue;
5597 }
5598
5599 bus_attr = &ioa_cfg->bus_attr[i];
5600 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5601 bus->bus_width = bus_attr->bus_width;
5602 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5603 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5604 if (bus_attr->qas_enabled)
5605 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5606 else
5607 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5608 }
5609}
5610
5611/**
5612 * ipr_build_mode_select - Build a mode select command
5613 * @ipr_cmd: ipr command struct
5614 * @res_handle: resource handle to send command to
5615 * @parm: Byte 2 of Mode Sense command
5616 * @dma_addr: DMA buffer address
5617 * @xfer_len: data transfer length
5618 *
5619 * Return value:
5620 * none
5621 **/
5622static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5623 __be32 res_handle, u8 parm, u32 dma_addr,
5624 u8 xfer_len)
5625{
5626 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5627 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5628
5629 ioarcb->res_handle = res_handle;
5630 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5631 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5632 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5633 ioarcb->cmd_pkt.cdb[1] = parm;
5634 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5635
5636 ioadl->flags_and_data_len =
5637 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5638 ioadl->address = cpu_to_be32(dma_addr);
5639 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5640 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5641}
5642
5643/**
5644 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5645 * @ipr_cmd: ipr command struct
5646 *
5647 * This function sets up the SCSI bus attributes and sends
5648 * a Mode Select for Page 28 to activate them.
5649 *
5650 * Return value:
5651 * IPR_RC_JOB_RETURN
5652 **/
5653static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5654{
5655 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5656 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5657 int length;
5658
5659 ENTER;
4733804c
BK		 5660 ipr_scsi_bus_speed_limit(ioa_cfg);
5661 ipr_check_term_power(ioa_cfg, mode_pages);
5662 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5663 length = mode_pages->hdr.length + 1;
5664 mode_pages->hdr.length = 0;
1da177e4
LT		 5665
5666 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5667 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5668 length);
5669
62275040 5670 ipr_cmd->job_step = ipr_setup_write_cache;
1da177e4
LT		 5671 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5672
5673 LEAVE;
5674 return IPR_RC_JOB_RETURN;
5675}
5676
5677/**
5678 * ipr_build_mode_sense - Builds a mode sense command
5679 * @ipr_cmd: ipr command struct
5680 * @res: resource entry struct
5681 * @parm: Byte 2 of mode sense command
5682 * @dma_addr: DMA address of mode sense buffer
5683 * @xfer_len: Size of DMA buffer
5684 *
5685 * Return value:
5686 * none
5687 **/
5688static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5689 __be32 res_handle,
5690 u8 parm, u32 dma_addr, u8 xfer_len)
5691{
5692 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5693 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5694
5695 ioarcb->res_handle = res_handle;
5696 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5697 ioarcb->cmd_pkt.cdb[2] = parm;
5698 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5699 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5700
5701 ioadl->flags_and_data_len =
5702 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5703 ioadl->address = cpu_to_be32(dma_addr);
5704 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5705 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5706}
5707
dfed823e
BK		 5708/**
5709 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5710 * @ipr_cmd: ipr command struct
5711 *
5712 * This function handles the failure of an IOA bringup command.
5713 *
5714 * Return value:
5715 * IPR_RC_JOB_RETURN
5716 **/
5717static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5718{
5719 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5720 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5721
5722 dev_err(&ioa_cfg->pdev->dev,
5723 "0x%02X failed with IOASC: 0x%08X\n",
5724 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5725
5726 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5727 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5728 return IPR_RC_JOB_RETURN;
5729}
5730
5731/**
5732 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5733 * @ipr_cmd: ipr command struct
5734 *
5735 * This function handles the failure of a Mode Sense to the IOAFP.
5736 * Some adapters do not handle all mode pages.
5737 *
5738 * Return value:
5739 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5740 **/
5741static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5742{
5743 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5744
5745 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5746 ipr_cmd->job_step = ipr_setup_write_cache;
5747 return IPR_RC_JOB_CONTINUE;
5748 }
5749
5750 return ipr_reset_cmd_failed(ipr_cmd);
5751}
5752
1da177e4
LT		 5753/**
5754 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5755 * @ipr_cmd: ipr command struct
5756 *
5757 * This function send a Page 28 mode sense to the IOA to
5758 * retrieve SCSI bus attributes.
5759 *
5760 * Return value:
5761 * IPR_RC_JOB_RETURN
5762 **/
5763static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5764{
5765 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5766
5767 ENTER;
5768 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5769 0x28, ioa_cfg->vpd_cbs_dma +
5770 offsetof(struct ipr_misc_cbs, mode_pages),
5771 sizeof(struct ipr_mode_pages));
5772
5773 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 5774 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 5775
5776 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5777
5778 LEAVE;
5779 return IPR_RC_JOB_RETURN;
5780}
5781
5782/**
5783 * ipr_init_res_table - Initialize the resource table
5784 * @ipr_cmd: ipr command struct
5785 *
5786 * This function looks through the existing resource table, comparing
5787 * it with the config table. This function will take care of old/new
5788 * devices and schedule adding/removing them from the mid-layer
5789 * as appropriate.
5790 *
5791 * Return value:
5792 * IPR_RC_JOB_CONTINUE
5793 **/
5794static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
5795{
5796 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5797 struct ipr_resource_entry *res, *temp;
5798 struct ipr_config_table_entry *cfgte;
5799 int found, i;
5800 LIST_HEAD(old_res);
5801
5802 ENTER;
5803 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
5804 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
5805
5806 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
5807 list_move_tail(&res->queue, &old_res);
5808
5809 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
5810 cfgte = &ioa_cfg->cfg_table->dev[i];
5811 found = 0;
5812
5813 list_for_each_entry_safe(res, temp, &old_res, queue) {
5814 if (!memcmp(&res->cfgte.res_addr,
5815 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
5816 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5817 found = 1;
5818 break;
5819 }
5820 }
5821
5822 if (!found) {
5823 if (list_empty(&ioa_cfg->free_res_q)) {
5824 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
5825 break;
5826 }
5827
5828 found = 1;
5829 res = list_entry(ioa_cfg->free_res_q.next,
5830 struct ipr_resource_entry, queue);
5831 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5832 ipr_init_res_entry(res);
5833 res->add_to_ml = 1;
5834 }
5835
5836 if (found)
5837 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
5838 }
5839
5840 list_for_each_entry_safe(res, temp, &old_res, queue) {
5841 if (res->sdev) {
5842 res->del_from_ml = 1;
1121b794 5843 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 5844 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5845 } else {
5846 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
5847 }
5848 }
5849
5850 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5851
5852 LEAVE;
5853 return IPR_RC_JOB_CONTINUE;
5854}
5855
5856/**
5857 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
5858 * @ipr_cmd: ipr command struct
5859 *
5860 * This function sends a Query IOA Configuration command
5861 * to the adapter to retrieve the IOA configuration table.
5862 *
5863 * Return value:
5864 * IPR_RC_JOB_RETURN
5865 **/
5866static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
5867{
5868 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5869 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5870 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5871 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
5872
5873 ENTER;
5874 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
5875 ucode_vpd->major_release, ucode_vpd->card_type,
5876 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
5877 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5878 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5879
5880 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
5881 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
5882 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
5883
5884 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5885 ioarcb->read_data_transfer_length =
5886 cpu_to_be32(sizeof(struct ipr_config_table));
5887
5888 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
5889 ioadl->flags_and_data_len =
5890 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
5891
5892 ipr_cmd->job_step = ipr_init_res_table;
5893
5894 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5895
5896 LEAVE;
5897 return IPR_RC_JOB_RETURN;
5898}
5899
5900/**
5901 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
5902 * @ipr_cmd: ipr command struct
5903 *
5904 * This utility function sends an inquiry to the adapter.
5905 *
5906 * Return value:
5907 * none
5908 **/
5909static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
5910 u32 dma_addr, u8 xfer_len)
5911{
5912 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5913 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5914
5915 ENTER;
5916 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5917 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5918
5919 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
5920 ioarcb->cmd_pkt.cdb[1] = flags;
5921 ioarcb->cmd_pkt.cdb[2] = page;
5922 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5923
5924 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5925 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5926
5927 ioadl->address = cpu_to_be32(dma_addr);
5928 ioadl->flags_and_data_len =
5929 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5930
5931 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5932 LEAVE;
5933}
5934
62275040
BK		 5935/**
5936 * ipr_inquiry_page_supported - Is the given inquiry page supported
5937 * @page0: inquiry page 0 buffer
5938 * @page: page code.
5939 *
5940 * This function determines if the specified inquiry page is supported.
5941 *
5942 * Return value:
5943 * 1 if page is supported / 0 if not
5944 **/
5945static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
5946{
5947 int i;
5948
5949 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
5950 if (page0->page[i] == page)
5951 return 1;
5952
5953 return 0;
5954}
5955
1da177e4
LT		 5956/**
5957 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
5958 * @ipr_cmd: ipr command struct
5959 *
5960 * This function sends a Page 3 inquiry to the adapter
5961 * to retrieve software VPD information.
5962 *
5963 * Return value:
5964 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5965 **/
5966static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 5967{
5968 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5969 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
5970
5971 ENTER;
5972
5973 if (!ipr_inquiry_page_supported(page0, 1))
5974 ioa_cfg->cache_state = CACHE_NONE;
5975
5976 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
5977
5978 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
5979 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
5980 sizeof(struct ipr_inquiry_page3));
5981
5982 LEAVE;
5983 return IPR_RC_JOB_RETURN;
5984}
5985
5986/**
5987 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
5988 * @ipr_cmd: ipr command struct
5989 *
5990 * This function sends a Page 0 inquiry to the adapter
5991 * to retrieve supported inquiry pages.
5992 *
5993 * Return value:
5994 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5995 **/
5996static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 5997{
5998 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5999 char type[5];
6000
6001 ENTER;
6002
6003 /* Grab the type out of the VPD and store it away */
6004 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6005 type[4] = '\0';
6006 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6007
62275040 6008 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 6009
62275040
BK		 6010 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6011 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6012 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 6013
6014 LEAVE;
6015 return IPR_RC_JOB_RETURN;
6016}
6017
6018/**
6019 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6020 * @ipr_cmd: ipr command struct
6021 *
6022 * This function sends a standard inquiry to the adapter.
6023 *
6024 * Return value:
6025 * IPR_RC_JOB_RETURN
6026 **/
6027static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6028{
6029 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6030
6031 ENTER;
62275040 6032 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 6033
6034 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6035 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6036 sizeof(struct ipr_ioa_vpd));
6037
6038 LEAVE;
6039 return IPR_RC_JOB_RETURN;
6040}
6041
6042/**
6043 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6044 * @ipr_cmd: ipr command struct
6045 *
6046 * This function send an Identify Host Request Response Queue
6047 * command to establish the HRRQ with the adapter.
6048 *
6049 * Return value:
6050 * IPR_RC_JOB_RETURN
6051 **/
6052static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6053{
6054 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6055 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6056
6057 ENTER;
6058 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6059
6060 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6061 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6062
6063 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6064 ioarcb->cmd_pkt.cdb[2] =
6065 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6066 ioarcb->cmd_pkt.cdb[3] =
6067 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6068 ioarcb->cmd_pkt.cdb[4] =
6069 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6070 ioarcb->cmd_pkt.cdb[5] =
6071 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6072 ioarcb->cmd_pkt.cdb[7] =
6073 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6074 ioarcb->cmd_pkt.cdb[8] =
6075 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6076
6077 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6078
6079 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6080
6081 LEAVE;
6082 return IPR_RC_JOB_RETURN;
6083}
6084
6085/**
6086 * ipr_reset_timer_done - Adapter reset timer function
6087 * @ipr_cmd: ipr command struct
6088 *
6089 * Description: This function is used in adapter reset processing
6090 * for timing events. If the reset_cmd pointer in the IOA
6091 * config struct is not this adapter's we are doing nested
6092 * resets and fail_all_ops will take care of freeing the
6093 * command block.
6094 *
6095 * Return value:
6096 * none
6097 **/
6098static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6099{
6100 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6101 unsigned long lock_flags = 0;
6102
6103 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6104
6105 if (ioa_cfg->reset_cmd == ipr_cmd) {
6106 list_del(&ipr_cmd->queue);
6107 ipr_cmd->done(ipr_cmd);
6108 }
6109
6110 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6111}
6112
6113/**
6114 * ipr_reset_start_timer - Start a timer for adapter reset job
6115 * @ipr_cmd: ipr command struct
6116 * @timeout: timeout value
6117 *
6118 * Description: This function is used in adapter reset processing
6119 * for timing events. If the reset_cmd pointer in the IOA
6120 * config struct is not this adapter's we are doing nested
6121 * resets and fail_all_ops will take care of freeing the
6122 * command block.
6123 *
6124 * Return value:
6125 * none
6126 **/
6127static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6128 unsigned long timeout)
6129{
6130 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6131 ipr_cmd->done = ipr_reset_ioa_job;
6132
6133 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6134 ipr_cmd->timer.expires = jiffies + timeout;
6135 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6136 add_timer(&ipr_cmd->timer);
6137}
6138
6139/**
6140 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6141 * @ioa_cfg: ioa cfg struct
6142 *
6143 * Return value:
6144 * nothing
6145 **/
6146static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6147{
6148 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6149
6150 /* Initialize Host RRQ pointers */
6151 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6152 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6153 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6154 ioa_cfg->toggle_bit = 1;
6155
6156 /* Zero out config table */
6157 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6158}
6159
6160/**
6161 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6162 * @ipr_cmd: ipr command struct
6163 *
6164 * This function reinitializes some control blocks and
6165 * enables destructive diagnostics on the adapter.
6166 *
6167 * Return value:
6168 * IPR_RC_JOB_RETURN
6169 **/
6170static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6171{
6172 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6173 volatile u32 int_reg;
6174
6175 ENTER;
6176 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6177 ipr_init_ioa_mem(ioa_cfg);
6178
6179 ioa_cfg->allow_interrupts = 1;
6180 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6181
6182 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6183 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6184 ioa_cfg->regs.clr_interrupt_mask_reg);
6185 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6186 return IPR_RC_JOB_CONTINUE;
6187 }
6188
6189 /* Enable destructive diagnostics on IOA */
3d1d0da6 6190 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
1da177e4
LT		 6191
6192 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6193 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6194
6195 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6196
6197 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 6198 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 6199 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6200 ipr_cmd->done = ipr_reset_ioa_job;
6201 add_timer(&ipr_cmd->timer);
6202 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6203
6204 LEAVE;
6205 return IPR_RC_JOB_RETURN;
6206}
6207
6208/**
6209 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6210 * @ipr_cmd: ipr command struct
6211 *
6212 * This function is invoked when an adapter dump has run out
6213 * of processing time.
6214 *
6215 * Return value:
6216 * IPR_RC_JOB_CONTINUE
6217 **/
6218static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6219{
6220 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6221
6222 if (ioa_cfg->sdt_state == GET_DUMP)
6223 ioa_cfg->sdt_state = ABORT_DUMP;
6224
6225 ipr_cmd->job_step = ipr_reset_alert;
6226
6227 return IPR_RC_JOB_CONTINUE;
6228}
6229
6230/**
6231 * ipr_unit_check_no_data - Log a unit check/no data error log
6232 * @ioa_cfg: ioa config struct
6233 *
6234 * Logs an error indicating the adapter unit checked, but for some
6235 * reason, we were unable to fetch the unit check buffer.
6236 *
6237 * Return value:
6238 * nothing
6239 **/
6240static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6241{
6242 ioa_cfg->errors_logged++;
6243 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6244}
6245
6246/**
6247 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6248 * @ioa_cfg: ioa config struct
6249 *
6250 * Fetches the unit check buffer from the adapter by clocking the data
6251 * through the mailbox register.
6252 *
6253 * Return value:
6254 * nothing
6255 **/
6256static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6257{
6258 unsigned long mailbox;
6259 struct ipr_hostrcb *hostrcb;
6260 struct ipr_uc_sdt sdt;
6261 int rc, length;
6262
6263 mailbox = readl(ioa_cfg->ioa_mailbox);
6264
6265 if (!ipr_sdt_is_fmt2(mailbox)) {
6266 ipr_unit_check_no_data(ioa_cfg);
6267 return;
6268 }
6269
6270 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6271 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6272 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6273
6274 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6275 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6276 ipr_unit_check_no_data(ioa_cfg);
6277 return;
6278 }
6279
6280 /* Find length of the first sdt entry (UC buffer) */
6281 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6282 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6283
6284 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6285 struct ipr_hostrcb, queue);
6286 list_del(&hostrcb->queue);
6287 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6288
6289 rc = ipr_get_ldump_data_section(ioa_cfg,
6290 be32_to_cpu(sdt.entry[0].bar_str_offset),
6291 (__be32 *)&hostrcb->hcam,
6292 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6293
6294 if (!rc)
6295 ipr_handle_log_data(ioa_cfg, hostrcb);
6296 else
6297 ipr_unit_check_no_data(ioa_cfg);
6298
6299 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6300}
6301
6302/**
6303 * ipr_reset_restore_cfg_space - Restore PCI config space.
6304 * @ipr_cmd: ipr command struct
6305 *
6306 * Description: This function restores the saved PCI config space of
6307 * the adapter, fails all outstanding ops back to the callers, and
6308 * fetches the dump/unit check if applicable to this reset.
6309 *
6310 * Return value:
6311 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6312 **/
6313static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6314{
6315 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6316 int rc;
6317
6318 ENTER;
6319 rc = pci_restore_state(ioa_cfg->pdev);
6320
6321 if (rc != PCIBIOS_SUCCESSFUL) {
6322 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6323 return IPR_RC_JOB_CONTINUE;
6324 }
6325
6326 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6327 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6328 return IPR_RC_JOB_CONTINUE;
6329 }
6330
6331 ipr_fail_all_ops(ioa_cfg);
6332
6333 if (ioa_cfg->ioa_unit_checked) {
6334 ioa_cfg->ioa_unit_checked = 0;
6335 ipr_get_unit_check_buffer(ioa_cfg);
6336 ipr_cmd->job_step = ipr_reset_alert;
6337 ipr_reset_start_timer(ipr_cmd, 0);
6338 return IPR_RC_JOB_RETURN;
6339 }
6340
6341 if (ioa_cfg->in_ioa_bringdown) {
6342 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6343 } else {
6344 ipr_cmd->job_step = ipr_reset_enable_ioa;
6345
6346 if (GET_DUMP == ioa_cfg->sdt_state) {
6347 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6348 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6349 schedule_work(&ioa_cfg->work_q);
6350 return IPR_RC_JOB_RETURN;
6351 }
6352 }
6353
6354 ENTER;
6355 return IPR_RC_JOB_CONTINUE;
6356}
6357
e619e1a7
BK		 6358/**
6359 * ipr_reset_bist_done - BIST has completed on the adapter.
6360 * @ipr_cmd: ipr command struct
6361 *
6362 * Description: Unblock config space and resume the reset process.
6363 *
6364 * Return value:
6365 * IPR_RC_JOB_CONTINUE
6366 **/
6367static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6368{
6369 ENTER;
6370 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6371 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6372 LEAVE;
6373 return IPR_RC_JOB_CONTINUE;
6374}
6375
1da177e4
LT		 6376/**
6377 * ipr_reset_start_bist - Run BIST on the adapter.
6378 * @ipr_cmd: ipr command struct
6379 *
6380 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6381 *
6382 * Return value:
6383 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6384 **/
6385static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6386{
6387 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6388 int rc;
6389
6390 ENTER;
b30197d2 6391 pci_block_user_cfg_access(ioa_cfg->pdev);
1da177e4
LT		 6392 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6393
6394 if (rc != PCIBIOS_SUCCESSFUL) {
a9aedb09 6395 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
1da177e4
LT		 6396 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6397 rc = IPR_RC_JOB_CONTINUE;
6398 } else {
e619e1a7 6399 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 6400 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6401 rc = IPR_RC_JOB_RETURN;
6402 }
6403
6404 LEAVE;
6405 return rc;
6406}
6407
6408/**
6409 * ipr_reset_allowed - Query whether or not IOA can be reset
6410 * @ioa_cfg: ioa config struct
6411 *
6412 * Return value:
6413 * 0 if reset not allowed / non-zero if reset is allowed
6414 **/
6415static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6416{
6417 volatile u32 temp_reg;
6418
6419 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6420 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6421}
6422
6423/**
6424 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6425 * @ipr_cmd: ipr command struct
6426 *
6427 * Description: This function waits for adapter permission to run BIST,
6428 * then runs BIST. If the adapter does not give permission after a
6429 * reasonable time, we will reset the adapter anyway. The impact of
6430 * resetting the adapter without warning the adapter is the risk of
6431 * losing the persistent error log on the adapter. If the adapter is
6432 * reset while it is writing to the flash on the adapter, the flash
6433 * segment will have bad ECC and be zeroed.
6434 *
6435 * Return value:
6436 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6437 **/
6438static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6439{
6440 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6441 int rc = IPR_RC_JOB_RETURN;
6442
6443 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6444 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6445 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6446 } else {
6447 ipr_cmd->job_step = ipr_reset_start_bist;
6448 rc = IPR_RC_JOB_CONTINUE;
6449 }
6450
6451 return rc;
6452}
6453
6454/**
6455 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6456 * @ipr_cmd: ipr command struct
6457 *
6458 * Description: This function alerts the adapter that it will be reset.
6459 * If memory space is not currently enabled, proceed directly
6460 * to running BIST on the adapter. The timer must always be started
6461 * so we guarantee we do not run BIST from ipr_isr.
6462 *
6463 * Return value:
6464 * IPR_RC_JOB_RETURN
6465 **/
6466static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6467{
6468 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6469 u16 cmd_reg;
6470 int rc;
6471
6472 ENTER;
6473 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6474
6475 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6476 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6477 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6478 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6479 } else {
6480 ipr_cmd->job_step = ipr_reset_start_bist;
6481 }
6482
6483 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6484 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6485
6486 LEAVE;
6487 return IPR_RC_JOB_RETURN;
6488}
6489
6490/**
6491 * ipr_reset_ucode_download_done - Microcode download completion
6492 * @ipr_cmd: ipr command struct
6493 *
6494 * Description: This function unmaps the microcode download buffer.
6495 *
6496 * Return value:
6497 * IPR_RC_JOB_CONTINUE
6498 **/
6499static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6500{
6501 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6502 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6503
6504 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6505 sglist->num_sg, DMA_TO_DEVICE);
6506
6507 ipr_cmd->job_step = ipr_reset_alert;
6508 return IPR_RC_JOB_CONTINUE;
6509}
6510
6511/**
6512 * ipr_reset_ucode_download - Download microcode to the adapter
6513 * @ipr_cmd: ipr command struct
6514 *
6515 * Description: This function checks to see if it there is microcode
6516 * to download to the adapter. If there is, a download is performed.
6517 *
6518 * Return value:
6519 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6520 **/
6521static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6522{
6523 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6524 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6525
6526 ENTER;
6527 ipr_cmd->job_step = ipr_reset_alert;
6528
6529 if (!sglist)
6530 return IPR_RC_JOB_CONTINUE;
6531
6532 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6533 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6534 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6535 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6536 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6537 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6538 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6539
12baa420 6540 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 6541 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6542
6543 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6544 IPR_WRITE_BUFFER_TIMEOUT);
6545
6546 LEAVE;
6547 return IPR_RC_JOB_RETURN;
6548}
6549
6550/**
6551 * ipr_reset_shutdown_ioa - Shutdown the adapter
6552 * @ipr_cmd: ipr command struct
6553 *
6554 * Description: This function issues an adapter shutdown of the
6555 * specified type to the specified adapter as part of the
6556 * adapter reset job.
6557 *
6558 * Return value:
6559 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6560 **/
6561static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6562{
6563 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6564 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6565 unsigned long timeout;
6566 int rc = IPR_RC_JOB_CONTINUE;
6567
6568 ENTER;
6569 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6570 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6571 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6572 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6573 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6574
6575 if (shutdown_type == IPR_SHUTDOWN_ABBREV)
6576 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6577 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6578 timeout = IPR_INTERNAL_TIMEOUT;
6579 else
6580 timeout = IPR_SHUTDOWN_TIMEOUT;
6581
6582 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6583
6584 rc = IPR_RC_JOB_RETURN;
6585 ipr_cmd->job_step = ipr_reset_ucode_download;
6586 } else
6587 ipr_cmd->job_step = ipr_reset_alert;
6588
6589 LEAVE;
6590 return rc;
6591}
6592
6593/**
6594 * ipr_reset_ioa_job - Adapter reset job
6595 * @ipr_cmd: ipr command struct
6596 *
6597 * Description: This function is the job router for the adapter reset job.
6598 *
6599 * Return value:
6600 * none
6601 **/
6602static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6603{
6604 u32 rc, ioasc;
1da177e4
LT		 6605 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6606
6607 do {
6608 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6609
6610 if (ioa_cfg->reset_cmd != ipr_cmd) {
6611 /*
6612 * We are doing nested adapter resets and this is
6613 * not the current reset job.
6614 */
6615 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6616 return;
6617 }
6618
6619 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 6620 rc = ipr_cmd->job_step_failed(ipr_cmd);
6621 if (rc == IPR_RC_JOB_RETURN)
6622 return;
1da177e4
LT		 6623 }
6624
6625 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 6626 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4
LT		 6627 rc = ipr_cmd->job_step(ipr_cmd);
6628 } while(rc == IPR_RC_JOB_CONTINUE);
6629}
6630
6631/**
6632 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6633 * @ioa_cfg: ioa config struct
6634 * @job_step: first job step of reset job
6635 * @shutdown_type: shutdown type
6636 *
6637 * Description: This function will initiate the reset of the given adapter
6638 * starting at the selected job step.
6639 * If the caller needs to wait on the completion of the reset,
6640 * the caller must sleep on the reset_wait_q.
6641 *
6642 * Return value:
6643 * none
6644 **/
6645static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6646 int (*job_step) (struct ipr_cmnd *),
6647 enum ipr_shutdown_type shutdown_type)
6648{
6649 struct ipr_cmnd *ipr_cmd;
6650
6651 ioa_cfg->in_reset_reload = 1;
6652 ioa_cfg->allow_cmds = 0;
6653 scsi_block_requests(ioa_cfg->host);
6654
6655 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6656 ioa_cfg->reset_cmd = ipr_cmd;
6657 ipr_cmd->job_step = job_step;
6658 ipr_cmd->u.shutdown_type = shutdown_type;
6659
6660 ipr_reset_ioa_job(ipr_cmd);
6661}
6662
6663/**
6664 * ipr_initiate_ioa_reset - Initiate an adapter reset
6665 * @ioa_cfg: ioa config struct
6666 * @shutdown_type: shutdown type
6667 *
6668 * Description: This function will initiate the reset of the given adapter.
6669 * If the caller needs to wait on the completion of the reset,
6670 * the caller must sleep on the reset_wait_q.
6671 *
6672 * Return value:
6673 * none
6674 **/
6675static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6676 enum ipr_shutdown_type shutdown_type)
6677{
6678 if (ioa_cfg->ioa_is_dead)
6679 return;
6680
6681 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6682 ioa_cfg->sdt_state = ABORT_DUMP;
6683
6684 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6685 dev_err(&ioa_cfg->pdev->dev,
6686 "IOA taken offline - error recovery failed\n");
6687
6688 ioa_cfg->reset_retries = 0;
6689 ioa_cfg->ioa_is_dead = 1;
6690
6691 if (ioa_cfg->in_ioa_bringdown) {
6692 ioa_cfg->reset_cmd = NULL;
6693 ioa_cfg->in_reset_reload = 0;
6694 ipr_fail_all_ops(ioa_cfg);
6695 wake_up_all(&ioa_cfg->reset_wait_q);
6696
6697 spin_unlock_irq(ioa_cfg->host->host_lock);
6698 scsi_unblock_requests(ioa_cfg->host);
6699 spin_lock_irq(ioa_cfg->host->host_lock);
6700 return;
6701 } else {
6702 ioa_cfg->in_ioa_bringdown = 1;
6703 shutdown_type = IPR_SHUTDOWN_NONE;
6704 }
6705 }
6706
6707 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
6708 shutdown_type);
6709}
6710
f8a88b19
LV		 6711/**
6712 * ipr_reset_freeze - Hold off all I/O activity
6713 * @ipr_cmd: ipr command struct
6714 *
6715 * Description: If the PCI slot is frozen, hold off all I/O
6716 * activity; then, as soon as the slot is available again,
6717 * initiate an adapter reset.
6718 */
6719static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
6720{
6721 /* Disallow new interrupts, avoid loop */
6722 ipr_cmd->ioa_cfg->allow_interrupts = 0;
6723 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6724 ipr_cmd->done = ipr_reset_ioa_job;
6725 return IPR_RC_JOB_RETURN;
6726}
6727
6728/**
6729 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
6730 * @pdev: PCI device struct
6731 *
6732 * Description: This routine is called to tell us that the PCI bus
6733 * is down. Can't do anything here, except put the device driver
6734 * into a holding pattern, waiting for the PCI bus to come back.
6735 */
6736static void ipr_pci_frozen(struct pci_dev *pdev)
6737{
6738 unsigned long flags = 0;
6739 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6740
6741 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6742 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
6743 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6744}
6745
6746/**
6747 * ipr_pci_slot_reset - Called when PCI slot has been reset.
6748 * @pdev: PCI device struct
6749 *
6750 * Description: This routine is called by the pci error recovery
6751 * code after the PCI slot has been reset, just before we
6752 * should resume normal operations.
6753 */
6754static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
6755{
6756 unsigned long flags = 0;
6757 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6758
6759 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6760 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
6761 IPR_SHUTDOWN_NONE);
6762 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6763 return PCI_ERS_RESULT_RECOVERED;
6764}
6765
6766/**
6767 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
6768 * @pdev: PCI device struct
6769 *
6770 * Description: This routine is called when the PCI bus has
6771 * permanently failed.
6772 */
6773static void ipr_pci_perm_failure(struct pci_dev *pdev)
6774{
6775 unsigned long flags = 0;
6776 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6777
6778 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6779 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
6780 ioa_cfg->sdt_state = ABORT_DUMP;
6781 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
6782 ioa_cfg->in_ioa_bringdown = 1;
6783 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6784 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6785}
6786
6787/**
6788 * ipr_pci_error_detected - Called when a PCI error is detected.
6789 * @pdev: PCI device struct
6790 * @state: PCI channel state
6791 *
6792 * Description: Called when a PCI error is detected.
6793 *
6794 * Return value:
6795 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
6796 */
6797static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
6798 pci_channel_state_t state)
6799{
6800 switch (state) {
6801 case pci_channel_io_frozen:
6802 ipr_pci_frozen(pdev);
6803 return PCI_ERS_RESULT_NEED_RESET;
6804 case pci_channel_io_perm_failure:
6805 ipr_pci_perm_failure(pdev);
6806 return PCI_ERS_RESULT_DISCONNECT;
6807 break;
6808 default:
6809 break;
6810 }
6811 return PCI_ERS_RESULT_NEED_RESET;
6812}
6813
1da177e4
LT		 6814/**
6815 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
6816 * @ioa_cfg: ioa cfg struct
6817 *
6818 * Description: This is the second phase of adapter intialization
6819 * This function takes care of initilizing the adapter to the point
6820 * where it can accept new commands.
6821
6822 * Return value:
6823 * 0 on sucess / -EIO on failure
6824 **/
6825static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
6826{
6827 int rc = 0;
6828 unsigned long host_lock_flags = 0;
6829
6830 ENTER;
6831 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
6832 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
ce155cce
BK		 6833 if (ioa_cfg->needs_hard_reset) {
6834 ioa_cfg->needs_hard_reset = 0;
6835 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6836 } else
6837 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
6838 IPR_SHUTDOWN_NONE);
1da177e4
LT		 6839
6840 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
6841 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6842 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
6843
6844 if (ioa_cfg->ioa_is_dead) {
6845 rc = -EIO;
6846 } else if (ipr_invalid_adapter(ioa_cfg)) {
6847 if (!ipr_testmode)
6848 rc = -EIO;
6849
6850 dev_err(&ioa_cfg->pdev->dev,
6851 "Adapter not supported in this hardware configuration.\n");
6852 }
6853
6854 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
6855
6856 LEAVE;
6857 return rc;
6858}
6859
6860/**
6861 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
6862 * @ioa_cfg: ioa config struct
6863 *
6864 * Return value:
6865 * none
6866 **/
6867static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
6868{
6869 int i;
6870
6871 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
6872 if (ioa_cfg->ipr_cmnd_list[i])
6873 pci_pool_free(ioa_cfg->ipr_cmd_pool,
6874 ioa_cfg->ipr_cmnd_list[i],
6875 ioa_cfg->ipr_cmnd_list_dma[i]);
6876
6877 ioa_cfg->ipr_cmnd_list[i] = NULL;
6878 }
6879
6880 if (ioa_cfg->ipr_cmd_pool)
6881 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
6882
6883 ioa_cfg->ipr_cmd_pool = NULL;
6884}
6885
6886/**
6887 * ipr_free_mem - Frees memory allocated for an adapter
6888 * @ioa_cfg: ioa cfg struct
6889 *
6890 * Return value:
6891 * nothing
6892 **/
6893static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
6894{
6895 int i;
6896
6897 kfree(ioa_cfg->res_entries);
6898 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
6899 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
6900 ipr_free_cmd_blks(ioa_cfg);
6901 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
6902 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
6903 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
6904 ioa_cfg->cfg_table,
6905 ioa_cfg->cfg_table_dma);
6906
6907 for (i = 0; i < IPR_NUM_HCAMS; i++) {
6908 pci_free_consistent(ioa_cfg->pdev,
6909 sizeof(struct ipr_hostrcb),
6910 ioa_cfg->hostrcb[i],
6911 ioa_cfg->hostrcb_dma[i]);
6912 }
6913
6914 ipr_free_dump(ioa_cfg);
1da177e4
LT		 6915 kfree(ioa_cfg->trace);
6916}
6917
6918/**
6919 * ipr_free_all_resources - Free all allocated resources for an adapter.
6920 * @ipr_cmd: ipr command struct
6921 *
6922 * This function frees all allocated resources for the
6923 * specified adapter.
6924 *
6925 * Return value:
6926 * none
6927 **/
6928static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
6929{
6930 struct pci_dev *pdev = ioa_cfg->pdev;
6931
6932 ENTER;
6933 free_irq(pdev->irq, ioa_cfg);
6934 iounmap(ioa_cfg->hdw_dma_regs);
6935 pci_release_regions(pdev);
6936 ipr_free_mem(ioa_cfg);
6937 scsi_host_put(ioa_cfg->host);
6938 pci_disable_device(pdev);
6939 LEAVE;
6940}
6941
6942/**
6943 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
6944 * @ioa_cfg: ioa config struct
6945 *
6946 * Return value:
6947 * 0 on success / -ENOMEM on allocation failure
6948 **/
6949static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
6950{
6951 struct ipr_cmnd *ipr_cmd;
6952 struct ipr_ioarcb *ioarcb;
6953 dma_addr_t dma_addr;
6954 int i;
6955
6956 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
6957 sizeof(struct ipr_cmnd), 8, 0);
6958
6959 if (!ioa_cfg->ipr_cmd_pool)
6960 return -ENOMEM;
6961
6962 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
e94b1766 6963 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 6964
6965 if (!ipr_cmd) {
6966 ipr_free_cmd_blks(ioa_cfg);
6967 return -ENOMEM;
6968 }
6969
6970 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
6971 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
6972 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
6973
6974 ioarcb = &ipr_cmd->ioarcb;
6975 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
6976 ioarcb->host_response_handle = cpu_to_be32(i << 2);
6977 ioarcb->write_ioadl_addr =
6978 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
6979 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
6980 ioarcb->ioasa_host_pci_addr =
6981 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
6982 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
6983 ipr_cmd->cmd_index = i;
6984 ipr_cmd->ioa_cfg = ioa_cfg;
6985 ipr_cmd->sense_buffer_dma = dma_addr +
6986 offsetof(struct ipr_cmnd, sense_buffer);
6987
6988 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6989 }
6990
6991 return 0;
6992}
6993
6994/**
6995 * ipr_alloc_mem - Allocate memory for an adapter
6996 * @ioa_cfg: ioa config struct
6997 *
6998 * Return value:
6999 * 0 on success / non-zero for error
7000 **/
7001static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7002{
7003 struct pci_dev *pdev = ioa_cfg->pdev;
7004 int i, rc = -ENOMEM;
7005
7006 ENTER;
0bc42e35 7007 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
1da177e4
LT		 7008 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7009
7010 if (!ioa_cfg->res_entries)
7011 goto out;
7012
1da177e4
LT		 7013 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7014 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7015
7016 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7017 sizeof(struct ipr_misc_cbs),
7018 &ioa_cfg->vpd_cbs_dma);
7019
7020 if (!ioa_cfg->vpd_cbs)
7021 goto out_free_res_entries;
7022
7023 if (ipr_alloc_cmd_blks(ioa_cfg))
7024 goto out_free_vpd_cbs;
7025
7026 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7027 sizeof(u32) * IPR_NUM_CMD_BLKS,
7028 &ioa_cfg->host_rrq_dma);
7029
7030 if (!ioa_cfg->host_rrq)
7031 goto out_ipr_free_cmd_blocks;
7032
7033 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7034 sizeof(struct ipr_config_table),
7035 &ioa_cfg->cfg_table_dma);
7036
7037 if (!ioa_cfg->cfg_table)
7038 goto out_free_host_rrq;
7039
7040 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7041 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7042 sizeof(struct ipr_hostrcb),
7043 &ioa_cfg->hostrcb_dma[i]);
7044
7045 if (!ioa_cfg->hostrcb[i])
7046 goto out_free_hostrcb_dma;
7047
7048 ioa_cfg->hostrcb[i]->hostrcb_dma =
7049 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 7050 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 7051 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7052 }
7053
0bc42e35 7054 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 7055 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7056
7057 if (!ioa_cfg->trace)
7058 goto out_free_hostrcb_dma;
7059
1da177e4
LT		 7060 rc = 0;
7061out:
7062 LEAVE;
7063 return rc;
7064
7065out_free_hostrcb_dma:
7066 while (i-- > 0) {
7067 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7068 ioa_cfg->hostrcb[i],
7069 ioa_cfg->hostrcb_dma[i]);
7070 }
7071 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7072 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7073out_free_host_rrq:
7074 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7075 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7076out_ipr_free_cmd_blocks:
7077 ipr_free_cmd_blks(ioa_cfg);
7078out_free_vpd_cbs:
7079 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7080 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7081out_free_res_entries:
7082 kfree(ioa_cfg->res_entries);
7083 goto out;
7084}
7085
7086/**
7087 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7088 * @ioa_cfg: ioa config struct
7089 *
7090 * Return value:
7091 * none
7092 **/
7093static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7094{
7095 int i;
7096
7097 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7098 ioa_cfg->bus_attr[i].bus = i;
7099 ioa_cfg->bus_attr[i].qas_enabled = 0;
7100 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7101 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7102 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7103 else
7104 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7105 }
7106}
7107
7108/**
7109 * ipr_init_ioa_cfg - Initialize IOA config struct
7110 * @ioa_cfg: ioa config struct
7111 * @host: scsi host struct
7112 * @pdev: PCI dev struct
7113 *
7114 * Return value:
7115 * none
7116 **/
7117static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7118 struct Scsi_Host *host, struct pci_dev *pdev)
7119{
7120 const struct ipr_interrupt_offsets *p;
7121 struct ipr_interrupts *t;
7122 void __iomem *base;
7123
7124 ioa_cfg->host = host;
7125 ioa_cfg->pdev = pdev;
7126 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 7127 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 7128 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7129 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7130 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7131 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7132 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7133 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7134 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7135 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7136
7137 INIT_LIST_HEAD(&ioa_cfg->free_q);
7138 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7139 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7140 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7141 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7142 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 7143 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4
LT		 7144 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7145 ioa_cfg->sdt_state = INACTIVE;
62275040
BK		 7146 if (ipr_enable_cache)
7147 ioa_cfg->cache_state = CACHE_ENABLED;
7148 else
7149 ioa_cfg->cache_state = CACHE_DISABLED;
1da177e4
LT		 7150
7151 ipr_initialize_bus_attr(ioa_cfg);
7152
7153 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7154 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7155 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7156 host->unique_id = host->host_no;
7157 host->max_cmd_len = IPR_MAX_CDB_LEN;
7158 pci_set_drvdata(pdev, ioa_cfg);
7159
7160 p = &ioa_cfg->chip_cfg->regs;
7161 t = &ioa_cfg->regs;
7162 base = ioa_cfg->hdw_dma_regs;
7163
7164 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7165 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7166 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7167 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7168 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7169 t->ioarrin_reg = base + p->ioarrin_reg;
7170 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7171 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7172 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7173}
7174
7175/**
7176 * ipr_get_chip_cfg - Find adapter chip configuration
7177 * @dev_id: PCI device id struct
7178 *
7179 * Return value:
7180 * ptr to chip config on success / NULL on failure
7181 **/
7182static const struct ipr_chip_cfg_t * __devinit
7183ipr_get_chip_cfg(const struct pci_device_id *dev_id)
7184{
7185 int i;
7186
1da177e4
LT		 7187 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7188 if (ipr_chip[i].vendor == dev_id->vendor &&
7189 ipr_chip[i].device == dev_id->device)
7190 return ipr_chip[i].cfg;
7191 return NULL;
7192}
7193
7194/**
7195 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7196 * @pdev: PCI device struct
7197 * @dev_id: PCI device id struct
7198 *
7199 * Return value:
7200 * 0 on success / non-zero on failure
7201 **/
7202static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7203 const struct pci_device_id *dev_id)
7204{
7205 struct ipr_ioa_cfg *ioa_cfg;
7206 struct Scsi_Host *host;
7207 unsigned long ipr_regs_pci;
7208 void __iomem *ipr_regs;
a2a65a3e 7209 int rc = PCIBIOS_SUCCESSFUL;
ce155cce 7210 volatile u32 mask, uproc;
1da177e4
LT		 7211
7212 ENTER;
7213
7214 if ((rc = pci_enable_device(pdev))) {
7215 dev_err(&pdev->dev, "Cannot enable adapter\n");
7216 goto out;
7217 }
7218
7219 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7220
7221 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7222
7223 if (!host) {
7224 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7225 rc = -ENOMEM;
7226 goto out_disable;
7227 }
7228
7229 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7230 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
35a39691
BK		 7231 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7232 sata_port_info.flags, &ipr_sata_ops);
1da177e4
LT		 7233
7234 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
7235
7236 if (!ioa_cfg->chip_cfg) {
7237 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7238 dev_id->vendor, dev_id->device);
7239 goto out_scsi_host_put;
7240 }
7241
5469cb5b
BK		 7242 if (ipr_transop_timeout)
7243 ioa_cfg->transop_timeout = ipr_transop_timeout;
7244 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7245 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7246 else
7247 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7248
1da177e4
LT		 7249 ipr_regs_pci = pci_resource_start(pdev, 0);
7250
7251 rc = pci_request_regions(pdev, IPR_NAME);
7252 if (rc < 0) {
7253 dev_err(&pdev->dev,
7254 "Couldn't register memory range of registers\n");
7255 goto out_scsi_host_put;
7256 }
7257
7258 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0));
7259
7260 if (!ipr_regs) {
7261 dev_err(&pdev->dev,
7262 "Couldn't map memory range of registers\n");
7263 rc = -ENOMEM;
7264 goto out_release_regions;
7265 }
7266
7267 ioa_cfg->hdw_dma_regs = ipr_regs;
7268 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7269 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7270
7271 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7272
7273 pci_set_master(pdev);
7274
7275 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7276 if (rc < 0) {
7277 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7278 goto cleanup_nomem;
7279 }
7280
7281 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7282 ioa_cfg->chip_cfg->cache_line_size);
7283
7284 if (rc != PCIBIOS_SUCCESSFUL) {
7285 dev_err(&pdev->dev, "Write of cache line size failed\n");
7286 rc = -EIO;
7287 goto cleanup_nomem;
7288 }
7289
7290 /* Save away PCI config space for use following IOA reset */
7291 rc = pci_save_state(pdev);
7292
7293 if (rc != PCIBIOS_SUCCESSFUL) {
7294 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7295 rc = -EIO;
7296 goto cleanup_nomem;
7297 }
7298
7299 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7300 goto cleanup_nomem;
7301
7302 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7303 goto cleanup_nomem;
7304
7305 rc = ipr_alloc_mem(ioa_cfg);
7306 if (rc < 0) {
7307 dev_err(&pdev->dev,
7308 "Couldn't allocate enough memory for device driver!\n");
7309 goto cleanup_nomem;
7310 }
7311
ce155cce
BK		 7312 /*
7313 * If HRRQ updated interrupt is not masked, or reset alert is set,
7314 * the card is in an unknown state and needs a hard reset
7315 */
7316 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7317 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7318 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7319 ioa_cfg->needs_hard_reset = 1;
7320
1da177e4 7321 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
1d6f359a 7322 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
1da177e4
LT		 7323
7324 if (rc) {
7325 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7326 pdev->irq, rc);
7327 goto cleanup_nolog;
7328 }
7329
7330 spin_lock(&ipr_driver_lock);
7331 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7332 spin_unlock(&ipr_driver_lock);
7333
7334 LEAVE;
7335out:
7336 return rc;
7337
7338cleanup_nolog:
7339 ipr_free_mem(ioa_cfg);
7340cleanup_nomem:
7341 iounmap(ipr_regs);
7342out_release_regions:
7343 pci_release_regions(pdev);
7344out_scsi_host_put:
7345 scsi_host_put(host);
7346out_disable:
7347 pci_disable_device(pdev);
7348 goto out;
7349}
7350
7351/**
7352 * ipr_scan_vsets - Scans for VSET devices
7353 * @ioa_cfg: ioa config struct
7354 *
7355 * Description: Since the VSET resources do not follow SAM in that we can have
7356 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7357 *
7358 * Return value:
7359 * none
7360 **/
7361static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7362{
7363 int target, lun;
7364
7365 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7366 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7367 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7368}
7369
7370/**
7371 * ipr_initiate_ioa_bringdown - Bring down an adapter
7372 * @ioa_cfg: ioa config struct
7373 * @shutdown_type: shutdown type
7374 *
7375 * Description: This function will initiate bringing down the adapter.
7376 * This consists of issuing an IOA shutdown to the adapter
7377 * to flush the cache, and running BIST.
7378 * If the caller needs to wait on the completion of the reset,
7379 * the caller must sleep on the reset_wait_q.
7380 *
7381 * Return value:
7382 * none
7383 **/
7384static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7385 enum ipr_shutdown_type shutdown_type)
7386{
7387 ENTER;
7388 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7389 ioa_cfg->sdt_state = ABORT_DUMP;
7390 ioa_cfg->reset_retries = 0;
7391 ioa_cfg->in_ioa_bringdown = 1;
7392 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7393 LEAVE;
7394}
7395
7396/**
7397 * __ipr_remove - Remove a single adapter
7398 * @pdev: pci device struct
7399 *
7400 * Adapter hot plug remove entry point.
7401 *
7402 * Return value:
7403 * none
7404 **/
7405static void __ipr_remove(struct pci_dev *pdev)
7406{
7407 unsigned long host_lock_flags = 0;
7408 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7409 ENTER;
7410
7411 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7412 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7413
7414 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7415 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5cbf5eae 7416 flush_scheduled_work();
1da177e4
LT		 7417 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7418
7419 spin_lock(&ipr_driver_lock);
7420 list_del(&ioa_cfg->queue);
7421 spin_unlock(&ipr_driver_lock);
7422
7423 if (ioa_cfg->sdt_state == ABORT_DUMP)
7424 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7425 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7426
7427 ipr_free_all_resources(ioa_cfg);
7428
7429 LEAVE;
7430}
7431
7432/**
7433 * ipr_remove - IOA hot plug remove entry point
7434 * @pdev: pci device struct
7435 *
7436 * Adapter hot plug remove entry point.
7437 *
7438 * Return value:
7439 * none
7440 **/
7441static void ipr_remove(struct pci_dev *pdev)
7442{
7443 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7444
7445 ENTER;
7446
1da177e4
LT		 7447 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7448 &ipr_trace_attr);
7449 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7450 &ipr_dump_attr);
7451 scsi_remove_host(ioa_cfg->host);
7452
7453 __ipr_remove(pdev);
7454
7455 LEAVE;
7456}
7457
7458/**
7459 * ipr_probe - Adapter hot plug add entry point
7460 *
7461 * Return value:
7462 * 0 on success / non-zero on failure
7463 **/
7464static int __devinit ipr_probe(struct pci_dev *pdev,
7465 const struct pci_device_id *dev_id)
7466{
7467 struct ipr_ioa_cfg *ioa_cfg;
7468 int rc;
7469
7470 rc = ipr_probe_ioa(pdev, dev_id);
7471
7472 if (rc)
7473 return rc;
7474
7475 ioa_cfg = pci_get_drvdata(pdev);
7476 rc = ipr_probe_ioa_part2(ioa_cfg);
7477
7478 if (rc) {
7479 __ipr_remove(pdev);
7480 return rc;
7481 }
7482
7483 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7484
7485 if (rc) {
7486 __ipr_remove(pdev);
7487 return rc;
7488 }
7489
7490 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7491 &ipr_trace_attr);
7492
7493 if (rc) {
7494 scsi_remove_host(ioa_cfg->host);
7495 __ipr_remove(pdev);
7496 return rc;
7497 }
7498
7499 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj,
7500 &ipr_dump_attr);
7501
7502 if (rc) {
7503 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj,
7504 &ipr_trace_attr);
7505 scsi_remove_host(ioa_cfg->host);
7506 __ipr_remove(pdev);
7507 return rc;
7508 }
7509
7510 scsi_scan_host(ioa_cfg->host);
7511 ipr_scan_vsets(ioa_cfg);
7512 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7513 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 7514 ioa_cfg->host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 7515 schedule_work(&ioa_cfg->work_q);
7516 return 0;
7517}
7518
7519/**
7520 * ipr_shutdown - Shutdown handler.
d18c3db5 7521 * @pdev: pci device struct
1da177e4
LT		 7522 *
7523 * This function is invoked upon system shutdown/reboot. It will issue
7524 * an adapter shutdown to the adapter to flush the write cache.
7525 *
7526 * Return value:
7527 * none
7528 **/
d18c3db5 7529static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 7530{
d18c3db5 7531 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4
LT		 7532 unsigned long lock_flags = 0;
7533
7534 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7535 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7536 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7537 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7538}
7539
7540static struct pci_device_id ipr_pci_table[] __devinitdata = {
7541 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 7542 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 7543 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 7544 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 7545 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 7546 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 7547 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 7548 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 7549 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 7550 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 7551 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 7552 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 7553 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 7554 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 7555 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 7556 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7557 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 7558 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 7559 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 7560 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 7561 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 0 },
60e7486b 7562 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 7563 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7564 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 7565 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 7566 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 7567 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 7568 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 0 },
60e7486b 7569 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 7570 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7571 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 7572 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7573 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 0 },
7574 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7575 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7576 IPR_USE_LONG_TRANSOP_TIMEOUT },
7577 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7578 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
60e7486b 7579 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b
BK		 7580 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7581 IPR_USE_LONG_TRANSOP_TIMEOUT },
1da177e4 7582 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 7583 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 7584 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 7585 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 7586 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 7587 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7588 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 7589 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 7590 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7591 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 7592 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7593 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7594 IPR_USE_LONG_TRANSOP_TIMEOUT },
1da177e4
LT		 7595 { }
7596};
7597MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7598
f8a88b19
LV		 7599static struct pci_error_handlers ipr_err_handler = {
7600 .error_detected = ipr_pci_error_detected,
7601 .slot_reset = ipr_pci_slot_reset,
7602};
7603
1da177e4
LT		 7604static struct pci_driver ipr_driver = {
7605 .name = IPR_NAME,
7606 .id_table = ipr_pci_table,
7607 .probe = ipr_probe,
7608 .remove = ipr_remove,
d18c3db5 7609 .shutdown = ipr_shutdown,
f8a88b19 7610 .err_handler = &ipr_err_handler,
1da177e4
LT		 7611};
7612
7613/**
7614 * ipr_init - Module entry point
7615 *
7616 * Return value:
7617 * 0 on success / negative value on failure
7618 **/
7619static int __init ipr_init(void)
7620{
7621 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7622 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7623
dcbccbde 7624 return pci_register_driver(&ipr_driver);
1da177e4
LT		 7625}
7626
7627/**
7628 * ipr_exit - Module unload
7629 *
7630 * Module unload entry point.
7631 *
7632 * Return value:
7633 * none
7634 **/
7635static void __exit ipr_exit(void)
7636{
7637 pci_unregister_driver(&ipr_driver);
7638}
7639
7640module_init(ipr_init);
7641module_exit(ipr_exit);
ubuntu-zesty-kernel mirror