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[SCSI] ipr: Fix target id allocation re-use problem
[mirror_ubuntu-eoan-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>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
1da177e4
LT		 101static DEFINE_SPINLOCK(ipr_driver_lock);
102
103/* This table describes the differences between DMA controller chips */
104static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 105 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4
LT		 106 .mailbox = 0x0042C,
107 .cache_line_size = 0x20,
108 {
109 .set_interrupt_mask_reg = 0x0022C,
110 .clr_interrupt_mask_reg = 0x00230,
214777ba 111 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 112 .sense_interrupt_mask_reg = 0x0022C,
214777ba 113 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 114 .clr_interrupt_reg = 0x00228,
214777ba 115 .clr_interrupt_reg32 = 0x00228,
1da177e4 116 .sense_interrupt_reg = 0x00224,
214777ba 117 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 118 .ioarrin_reg = 0x00404,
119 .sense_uproc_interrupt_reg = 0x00214,
214777ba 120 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 121 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 122 .set_uproc_interrupt_reg32 = 0x00214,
123 .clr_uproc_interrupt_reg = 0x00218,
124 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 125 }
126 },
127 { /* Snipe and Scamp */
128 .mailbox = 0x0052C,
129 .cache_line_size = 0x20,
130 {
131 .set_interrupt_mask_reg = 0x00288,
132 .clr_interrupt_mask_reg = 0x0028C,
214777ba 133 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 134 .sense_interrupt_mask_reg = 0x00288,
214777ba 135 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 136 .clr_interrupt_reg = 0x00284,
214777ba 137 .clr_interrupt_reg32 = 0x00284,
1da177e4 138 .sense_interrupt_reg = 0x00280,
214777ba 139 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 140 .ioarrin_reg = 0x00504,
141 .sense_uproc_interrupt_reg = 0x00290,
214777ba 142 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 143 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 144 .set_uproc_interrupt_reg32 = 0x00290,
145 .clr_uproc_interrupt_reg = 0x00294,
146 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 147 }
148 },
a74c1639 149 { /* CRoC */
110def85 150 .mailbox = 0x00044,
a74c1639
WB		 151 .cache_line_size = 0x20,
152 {
153 .set_interrupt_mask_reg = 0x00010,
154 .clr_interrupt_mask_reg = 0x00018,
214777ba 155 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 156 .sense_interrupt_mask_reg = 0x00010,
214777ba 157 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 158 .clr_interrupt_reg = 0x00008,
214777ba 159 .clr_interrupt_reg32 = 0x0000C,
a74c1639 160 .sense_interrupt_reg = 0x00000,
214777ba 161 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 162 .ioarrin_reg = 0x00070,
163 .sense_uproc_interrupt_reg = 0x00020,
214777ba 164 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 165 .set_uproc_interrupt_reg = 0x00020,
214777ba 166 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 167 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 168 .clr_uproc_interrupt_reg32 = 0x0002C,
169 .init_feedback_reg = 0x0005C,
dcbad00e 170 .dump_addr_reg = 0x00064,
8701f185
WB		 171 .dump_data_reg = 0x00068,
172 .endian_swap_reg = 0x00084
a74c1639
WB		 173 }
174 },
1da177e4
LT		 175};
176
177static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 178 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 187};
188
189static int ipr_max_bus_speeds [] = {
190 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
191};
192
193MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
194MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
195module_param_named(max_speed, ipr_max_speed, uint, 0);
196MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
197module_param_named(log_level, ipr_log_level, uint, 0);
198MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
199module_param_named(testmode, ipr_testmode, int, 0);
200MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 201module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 202MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
203module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
204MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 205module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 206MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 207module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
208MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 209module_param_named(max_devs, ipr_max_devs, int, 0);
210MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
211 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
1da177e4
LT		 212MODULE_LICENSE("GPL");
213MODULE_VERSION(IPR_DRIVER_VERSION);
214
1da177e4
LT		 215/* A constant array of IOASCs/URCs/Error Messages */
216static const
217struct ipr_error_table_t ipr_error_table[] = {
933916f3 218 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 219 "8155: An unknown error was received"},
220 {0x00330000, 0, 0,
221 "Soft underlength error"},
222 {0x005A0000, 0, 0,
223 "Command to be cancelled not found"},
224 {0x00808000, 0, 0,
225 "Qualified success"},
933916f3 226 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 227 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 228 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 229 "4101: Soft device bus fabric error"},
5aa3a333
WB		 230 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
231 "FFFC: Logical block guard error recovered by the device"},
232 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
233 "FFFC: Logical block reference tag error recovered by the device"},
234 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
235 "4171: Recovered scatter list tag / sequence number error"},
236 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
237 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
238 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
239 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
240 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
241 "FFFD: Recovered logical block reference tag error detected by the IOA"},
242 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 244 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 245 "FFF9: Device sector reassign successful"},
933916f3 246 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 247 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 248 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 249 "7001: IOA sector reassignment successful"},
933916f3 250 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 251 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 252 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 253 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 254 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 255 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 256 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 257 "FFF6: Device hardware error recovered by the IOA"},
933916f3 258 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 259 "FFF6: Device hardware error recovered by the device"},
933916f3 260 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 261 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 262 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 263 "FFFA: Undefined device response recovered by the IOA"},
933916f3 264 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 265 "FFF6: Device bus error, message or command phase"},
933916f3 266 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 267 "FFFE: Task Management Function failed"},
933916f3 268 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 269 "FFF6: Failure prediction threshold exceeded"},
933916f3 270 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 271 "8009: Impending cache battery pack failure"},
272 {0x02040400, 0, 0,
273 "34FF: Disk device format in progress"},
65f56475
BK		 274 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
275 "9070: IOA requested reset"},
1da177e4
LT		 276 {0x023F0000, 0, 0,
277 "Synchronization required"},
278 {0x024E0000, 0, 0,
279 "No ready, IOA shutdown"},
280 {0x025A0000, 0, 0,
281 "Not ready, IOA has been shutdown"},
933916f3 282 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 283 "3020: Storage subsystem configuration error"},
284 {0x03110B00, 0, 0,
285 "FFF5: Medium error, data unreadable, recommend reassign"},
286 {0x03110C00, 0, 0,
287 "7000: Medium error, data unreadable, do not reassign"},
933916f3 288 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 289 "FFF3: Disk media format bad"},
933916f3 290 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 291 "3002: Addressed device failed to respond to selection"},
933916f3 292 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 293 "3100: Device bus error"},
933916f3 294 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 295 "3109: IOA timed out a device command"},
296 {0x04088000, 0, 0,
297 "3120: SCSI bus is not operational"},
933916f3 298 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 299 "4100: Hard device bus fabric error"},
5aa3a333
WB		 300 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
301 "310C: Logical block guard error detected by the device"},
302 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
303 "310C: Logical block reference tag error detected by the device"},
304 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
305 "4170: Scatter list tag / sequence number error"},
306 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
307 "8150: Logical block CRC error on IOA to Host transfer"},
308 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
309 "4170: Logical block sequence number error on IOA to Host transfer"},
310 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
311 "310D: Logical block reference tag error detected by the IOA"},
312 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
313 "310D: Logical block guard error detected by the IOA"},
933916f3 314 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 315 "9000: IOA reserved area data check"},
933916f3 316 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 317 "9001: IOA reserved area invalid data pattern"},
933916f3 318 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 319 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 320 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
321 "Hardware Error, IOA metadata access error"},
933916f3 322 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 323 "102E: Out of alternate sectors for disk storage"},
933916f3 324 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 325 "FFF4: Data transfer underlength error"},
933916f3 326 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 327 "FFF4: Data transfer overlength error"},
933916f3 328 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 329 "3400: Logical unit failure"},
933916f3 330 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 331 "FFF4: Device microcode is corrupt"},
933916f3 332 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 333 "8150: PCI bus error"},
334 {0x04430000, 1, 0,
335 "Unsupported device bus message received"},
933916f3 336 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 337 "FFF4: Disk device problem"},
933916f3 338 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 339 "8150: Permanent IOA failure"},
933916f3 340 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 341 "3010: Disk device returned wrong response to IOA"},
933916f3 342 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 343 "8151: IOA microcode error"},
344 {0x04448500, 0, 0,
345 "Device bus status error"},
933916f3 346 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 347 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 348 {0x04448700, 0, 0,
349 "ATA device status error"},
1da177e4
LT		 350 {0x04490000, 0, 0,
351 "Message reject received from the device"},
933916f3 352 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 353 "8008: A permanent cache battery pack failure occurred"},
933916f3 354 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 355 "9090: Disk unit has been modified after the last known status"},
933916f3 356 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 357 "9081: IOA detected device error"},
933916f3 358 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 359 "9082: IOA detected device error"},
933916f3 360 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 361 "3110: Device bus error, message or command phase"},
933916f3 362 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 363 "3110: SAS Command / Task Management Function failed"},
933916f3 364 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 365 "9091: Incorrect hardware configuration change has been detected"},
933916f3 366 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 367 "9073: Invalid multi-adapter configuration"},
933916f3 368 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 369 "4010: Incorrect connection between cascaded expanders"},
933916f3 370 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 371 "4020: Connections exceed IOA design limits"},
933916f3 372 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 373 "4030: Incorrect multipath connection"},
933916f3 374 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 375 "4110: Unsupported enclosure function"},
933916f3 376 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 377 "FFF4: Command to logical unit failed"},
378 {0x05240000, 1, 0,
379 "Illegal request, invalid request type or request packet"},
380 {0x05250000, 0, 0,
381 "Illegal request, invalid resource handle"},
b0df54bb
BK		 382 {0x05258000, 0, 0,
383 "Illegal request, commands not allowed to this device"},
384 {0x05258100, 0, 0,
385 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 386 {0x05258200, 0, 0,
387 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 388 {0x05260000, 0, 0,
389 "Illegal request, invalid field in parameter list"},
390 {0x05260100, 0, 0,
391 "Illegal request, parameter not supported"},
392 {0x05260200, 0, 0,
393 "Illegal request, parameter value invalid"},
394 {0x052C0000, 0, 0,
395 "Illegal request, command sequence error"},
b0df54bb
BK		 396 {0x052C8000, 1, 0,
397 "Illegal request, dual adapter support not enabled"},
933916f3 398 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 399 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 400 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 401 "9040: Array protection temporarily suspended, protection resuming"},
933916f3 402 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 403 "3140: Device bus not ready to ready transition"},
933916f3 404 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 405 "FFFB: SCSI bus was reset"},
406 {0x06290500, 0, 0,
407 "FFFE: SCSI bus transition to single ended"},
408 {0x06290600, 0, 0,
409 "FFFE: SCSI bus transition to LVD"},
933916f3 410 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 411 "FFFB: SCSI bus was reset by another initiator"},
933916f3 412 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 413 "3029: A device replacement has occurred"},
933916f3 414 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 415 "9051: IOA cache data exists for a missing or failed device"},
933916f3 416 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 417 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 418 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 419 "9025: Disk unit is not supported at its physical location"},
933916f3 420 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 421 "3020: IOA detected a SCSI bus configuration error"},
933916f3 422 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 423 "3150: SCSI bus configuration error"},
933916f3 424 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 425 "9074: Asymmetric advanced function disk configuration"},
933916f3 426 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 427 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 428 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 429 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 430 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 431 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 432 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 433 "9076: Configuration error, missing remote IOA"},
933916f3 434 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 435 "4050: Enclosure does not support a required multipath function"},
b75424fc
WB		 436 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
437 "4070: Logically bad block written on device"},
933916f3 438 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 439 "9041: Array protection temporarily suspended"},
933916f3 440 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 441 "9042: Corrupt array parity detected on specified device"},
933916f3 442 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 443 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 444 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 445 "9071: Link operational transition"},
933916f3 446 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 447 "9072: Link not operational transition"},
933916f3 448 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 449 "9032: Array exposed but still protected"},
e435340c
BK		 450 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
451 "70DD: Device forced failed by disrupt device command"},
933916f3 452 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 453 "4061: Multipath redundancy level got better"},
933916f3 454 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 455 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 456 {0x07270000, 0, 0,
457 "Failure due to other device"},
933916f3 458 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 459 "9008: IOA does not support functions expected by devices"},
933916f3 460 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 461 "9010: Cache data associated with attached devices cannot be found"},
933916f3 462 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 463 "9011: Cache data belongs to devices other than those attached"},
933916f3 464 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 465 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 466 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 467 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 468 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 469 "9022: Exposed array is missing a required device"},
933916f3 470 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 471 "9023: Array member(s) not at required physical locations"},
933916f3 472 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 473 "9024: Array not functional due to present hardware configuration"},
933916f3 474 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 475 "9026: Array not functional due to present hardware configuration"},
933916f3 476 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 477 "9027: Array is missing a device and parity is out of sync"},
933916f3 478 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 479 "9028: Maximum number of arrays already exist"},
933916f3 480 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 481 "9050: Required cache data cannot be located for a disk unit"},
933916f3 482 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 483 "9052: Cache data exists for a device that has been modified"},
933916f3 484 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 485 "9054: IOA resources not available due to previous problems"},
933916f3 486 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 487 "9092: Disk unit requires initialization before use"},
933916f3 488 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 489 "9029: Incorrect hardware configuration change has been detected"},
933916f3 490 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 491 "9060: One or more disk pairs are missing from an array"},
933916f3 492 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 493 "9061: One or more disks are missing from an array"},
933916f3 494 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 495 "9062: One or more disks are missing from an array"},
933916f3 496 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 497 "9063: Maximum number of functional arrays has been exceeded"},
498 {0x0B260000, 0, 0,
499 "Aborted command, invalid descriptor"},
500 {0x0B5A0000, 0, 0,
501 "Command terminated by host"}
502};
503
504static const struct ipr_ses_table_entry ipr_ses_table[] = {
505 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
507 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
508 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
509 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
510 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
511 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
513 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
515 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
516 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
517 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
518};
519
520/*
521 * Function Prototypes
522 */
523static int ipr_reset_alert(struct ipr_cmnd *);
524static void ipr_process_ccn(struct ipr_cmnd *);
525static void ipr_process_error(struct ipr_cmnd *);
526static void ipr_reset_ioa_job(struct ipr_cmnd *);
527static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
528 enum ipr_shutdown_type);
529
530#ifdef CONFIG_SCSI_IPR_TRACE
531/**
532 * ipr_trc_hook - Add a trace entry to the driver trace
533 * @ipr_cmd: ipr command struct
534 * @type: trace type
535 * @add_data: additional data
536 *
537 * Return value:
538 * none
539 **/
540static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
541 u8 type, u32 add_data)
542{
543 struct ipr_trace_entry *trace_entry;
544 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
545
546 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
547 trace_entry->time = jiffies;
548 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
549 trace_entry->type = type;
a32c055f
WB		 550 if (ipr_cmd->ioa_cfg->sis64)
551 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
552 else
553 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 554 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 555 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
556 trace_entry->u.add_data = add_data;
557}
558#else
559#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
560#endif
561
562/**
563 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
564 * @ipr_cmd: ipr command struct
565 *
566 * Return value:
567 * none
568 **/
569static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
570{
571 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 572 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
573 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 574 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 575
576 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 577 ioarcb->data_transfer_length = 0;
1da177e4 578 ioarcb->read_data_transfer_length = 0;
a32c055f 579 ioarcb->ioadl_len = 0;
1da177e4 580 ioarcb->read_ioadl_len = 0;
a32c055f 581
96d21f00 582 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 583 ioarcb->u.sis64_addr_data.data_ioadl_addr =
584 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 585 ioasa64->u.gata.status = 0;
586 } else {
a32c055f
WB		 587 ioarcb->write_ioadl_addr =
588 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
589 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 590 ioasa->u.gata.status = 0;
a32c055f
WB		 591 }
592
96d21f00
WB		 593 ioasa->hdr.ioasc = 0;
594 ioasa->hdr.residual_data_len = 0;
1da177e4 595 ipr_cmd->scsi_cmd = NULL;
35a39691 596 ipr_cmd->qc = NULL;
1da177e4
LT		 597 ipr_cmd->sense_buffer[0] = 0;
598 ipr_cmd->dma_use_sg = 0;
599}
600
601/**
602 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
603 * @ipr_cmd: ipr command struct
604 *
605 * Return value:
606 * none
607 **/
608static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
609{
610 ipr_reinit_ipr_cmnd(ipr_cmd);
611 ipr_cmd->u.scratch = 0;
612 ipr_cmd->sibling = NULL;
613 init_timer(&ipr_cmd->timer);
614}
615
616/**
617 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
618 * @ioa_cfg: ioa config struct
619 *
620 * Return value:
621 * pointer to ipr command struct
622 **/
623static
624struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
625{
626 struct ipr_cmnd *ipr_cmd;
627
628 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
629 list_del(&ipr_cmd->queue);
630 ipr_init_ipr_cmnd(ipr_cmd);
631
632 return ipr_cmd;
633}
634
1da177e4
LT		 635/**
636 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
637 * @ioa_cfg: ioa config struct
638 * @clr_ints: interrupts to clear
639 *
640 * This function masks all interrupts on the adapter, then clears the
641 * interrupts specified in the mask
642 *
643 * Return value:
644 * none
645 **/
646static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
647 u32 clr_ints)
648{
649 volatile u32 int_reg;
650
651 /* Stop new interrupts */
652 ioa_cfg->allow_interrupts = 0;
653
654 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 655 if (ioa_cfg->sis64)
656 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
657 else
658 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 659
660 /* Clear any pending interrupts */
214777ba
WB		 661 if (ioa_cfg->sis64)
662 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
663 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 664 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
665}
666
667/**
668 * ipr_save_pcix_cmd_reg - Save PCI-X command register
669 * @ioa_cfg: ioa config struct
670 *
671 * Return value:
672 * 0 on success / -EIO on failure
673 **/
674static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
675{
676 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
677
7dce0e1c
BK		 678 if (pcix_cmd_reg == 0)
679 return 0;
1da177e4
LT		 680
681 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
682 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
683 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
684 return -EIO;
685 }
686
687 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
688 return 0;
689}
690
691/**
692 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
693 * @ioa_cfg: ioa config struct
694 *
695 * Return value:
696 * 0 on success / -EIO on failure
697 **/
698static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
699{
700 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
701
702 if (pcix_cmd_reg) {
703 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
704 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
705 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
706 return -EIO;
707 }
1da177e4
LT		 708 }
709
710 return 0;
711}
712
35a39691
BK		 713/**
714 * ipr_sata_eh_done - done function for aborted SATA commands
715 * @ipr_cmd: ipr command struct
716 *
717 * This function is invoked for ops generated to SATA
718 * devices which are being aborted.
719 *
720 * Return value:
721 * none
722 **/
723static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
724{
725 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
726 struct ata_queued_cmd *qc = ipr_cmd->qc;
727 struct ipr_sata_port *sata_port = qc->ap->private_data;
728
729 qc->err_mask |= AC_ERR_OTHER;
730 sata_port->ioasa.status |= ATA_BUSY;
731 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
732 ata_qc_complete(qc);
733}
734
1da177e4
LT		 735/**
736 * ipr_scsi_eh_done - mid-layer done function for aborted ops
737 * @ipr_cmd: ipr command struct
738 *
739 * This function is invoked by the interrupt handler for
740 * ops generated by the SCSI mid-layer which are being aborted.
741 *
742 * Return value:
743 * none
744 **/
745static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
746{
747 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
748 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
749
750 scsi_cmd->result |= (DID_ERROR << 16);
751
63015bc9 752 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 753 scsi_cmd->scsi_done(scsi_cmd);
754 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
755}
756
757/**
758 * ipr_fail_all_ops - Fails all outstanding ops.
759 * @ioa_cfg: ioa config struct
760 *
761 * This function fails all outstanding ops.
762 *
763 * Return value:
764 * none
765 **/
766static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
767{
768 struct ipr_cmnd *ipr_cmd, *temp;
769
770 ENTER;
771 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
772 list_del(&ipr_cmd->queue);
773
96d21f00
WB		 774 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
775 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
1da177e4
LT		 776
777 if (ipr_cmd->scsi_cmd)
778 ipr_cmd->done = ipr_scsi_eh_done;
35a39691
BK		 779 else if (ipr_cmd->qc)
780 ipr_cmd->done = ipr_sata_eh_done;
1da177e4
LT		 781
782 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
783 del_timer(&ipr_cmd->timer);
784 ipr_cmd->done(ipr_cmd);
785 }
786
787 LEAVE;
788}
789
a32c055f
WB		 790/**
791 * ipr_send_command - Send driver initiated requests.
792 * @ipr_cmd: ipr command struct
793 *
794 * This function sends a command to the adapter using the correct write call.
795 * In the case of sis64, calculate the ioarcb size required. Then or in the
796 * appropriate bits.
797 *
798 * Return value:
799 * none
800 **/
801static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
802{
803 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
804 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
805
806 if (ioa_cfg->sis64) {
807 /* The default size is 256 bytes */
808 send_dma_addr |= 0x1;
809
810 /* If the number of ioadls * size of ioadl > 128 bytes,
811 then use a 512 byte ioarcb */
812 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
813 send_dma_addr |= 0x4;
814 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
815 } else
816 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
817}
818
1da177e4
LT		 819/**
820 * ipr_do_req - Send driver initiated requests.
821 * @ipr_cmd: ipr command struct
822 * @done: done function
823 * @timeout_func: timeout function
824 * @timeout: timeout value
825 *
826 * This function sends the specified command to the adapter with the
827 * timeout given. The done function is invoked on command completion.
828 *
829 * Return value:
830 * none
831 **/
832static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
833 void (*done) (struct ipr_cmnd *),
834 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
835{
836 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
837
838 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
839
840 ipr_cmd->done = done;
841
842 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
843 ipr_cmd->timer.expires = jiffies + timeout;
844 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
845
846 add_timer(&ipr_cmd->timer);
847
848 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
849
850 mb();
a32c055f
WB		 851
852 ipr_send_command(ipr_cmd);
1da177e4
LT		 853}
854
855/**
856 * ipr_internal_cmd_done - Op done function for an internally generated op.
857 * @ipr_cmd: ipr command struct
858 *
859 * This function is the op done function for an internally generated,
860 * blocking op. It simply wakes the sleeping thread.
861 *
862 * Return value:
863 * none
864 **/
865static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
866{
867 if (ipr_cmd->sibling)
868 ipr_cmd->sibling = NULL;
869 else
870 complete(&ipr_cmd->completion);
871}
872
a32c055f
WB		 873/**
874 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
875 * @ipr_cmd: ipr command struct
876 * @dma_addr: dma address
877 * @len: transfer length
878 * @flags: ioadl flag value
879 *
880 * This function initializes an ioadl in the case where there is only a single
881 * descriptor.
882 *
883 * Return value:
884 * nothing
885 **/
886static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
887 u32 len, int flags)
888{
889 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
890 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
891
892 ipr_cmd->dma_use_sg = 1;
893
894 if (ipr_cmd->ioa_cfg->sis64) {
895 ioadl64->flags = cpu_to_be32(flags);
896 ioadl64->data_len = cpu_to_be32(len);
897 ioadl64->address = cpu_to_be64(dma_addr);
898
899 ipr_cmd->ioarcb.ioadl_len =
900 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
901 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
902 } else {
903 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
904 ioadl->address = cpu_to_be32(dma_addr);
905
906 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
907 ipr_cmd->ioarcb.read_ioadl_len =
908 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
909 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
910 } else {
911 ipr_cmd->ioarcb.ioadl_len =
912 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
913 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
914 }
915 }
916}
917
1da177e4
LT		 918/**
919 * ipr_send_blocking_cmd - Send command and sleep on its completion.
920 * @ipr_cmd: ipr command struct
921 * @timeout_func: function to invoke if command times out
922 * @timeout: timeout
923 *
924 * Return value:
925 * none
926 **/
927static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
928 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
929 u32 timeout)
930{
931 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
932
933 init_completion(&ipr_cmd->completion);
934 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
935
936 spin_unlock_irq(ioa_cfg->host->host_lock);
937 wait_for_completion(&ipr_cmd->completion);
938 spin_lock_irq(ioa_cfg->host->host_lock);
939}
940
941/**
942 * ipr_send_hcam - Send an HCAM to the adapter.
943 * @ioa_cfg: ioa config struct
944 * @type: HCAM type
945 * @hostrcb: hostrcb struct
946 *
947 * This function will send a Host Controlled Async command to the adapter.
948 * If HCAMs are currently not allowed to be issued to the adapter, it will
949 * place the hostrcb on the free queue.
950 *
951 * Return value:
952 * none
953 **/
954static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
955 struct ipr_hostrcb *hostrcb)
956{
957 struct ipr_cmnd *ipr_cmd;
958 struct ipr_ioarcb *ioarcb;
959
960 if (ioa_cfg->allow_cmds) {
961 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
962 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
963 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
964
965 ipr_cmd->u.hostrcb = hostrcb;
966 ioarcb = &ipr_cmd->ioarcb;
967
968 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
969 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
970 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
971 ioarcb->cmd_pkt.cdb[1] = type;
972 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
973 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
974
a32c055f
WB		 975 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
976 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 977
978 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
979 ipr_cmd->done = ipr_process_ccn;
980 else
981 ipr_cmd->done = ipr_process_error;
982
983 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
984
985 mb();
a32c055f
WB		 986
987 ipr_send_command(ipr_cmd);
1da177e4
LT		 988 } else {
989 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
990 }
991}
992
3e7ebdfa
WB		 993/**
994 * ipr_update_ata_class - Update the ata class in the resource entry
995 * @res: resource entry struct
996 * @proto: cfgte device bus protocol value
997 *
998 * Return value:
999 * none
1000 **/
1001static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1002{
1003 switch(proto) {
1004 case IPR_PROTO_SATA:
1005 case IPR_PROTO_SAS_STP:
1006 res->ata_class = ATA_DEV_ATA;
1007 break;
1008 case IPR_PROTO_SATA_ATAPI:
1009 case IPR_PROTO_SAS_STP_ATAPI:
1010 res->ata_class = ATA_DEV_ATAPI;
1011 break;
1012 default:
1013 res->ata_class = ATA_DEV_UNKNOWN;
1014 break;
1015 };
1016}
1017
1da177e4
LT		 1018/**
1019 * ipr_init_res_entry - Initialize a resource entry struct.
1020 * @res: resource entry struct
3e7ebdfa 1021 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1022 *
1023 * Return value:
1024 * none
1025 **/
3e7ebdfa
WB		 1026static void ipr_init_res_entry(struct ipr_resource_entry *res,
1027 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1028{
3e7ebdfa
WB		 1029 int found = 0;
1030 unsigned int proto;
1031 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1032 struct ipr_resource_entry *gscsi_res = NULL;
1033
ee0a90fa 1034 res->needs_sync_complete = 0;
1da177e4
LT		 1035 res->in_erp = 0;
1036 res->add_to_ml = 0;
1037 res->del_from_ml = 0;
1038 res->resetting_device = 0;
1039 res->sdev = NULL;
35a39691 1040 res->sata_port = NULL;
3e7ebdfa
WB		 1041
1042 if (ioa_cfg->sis64) {
1043 proto = cfgtew->u.cfgte64->proto;
1044 res->res_flags = cfgtew->u.cfgte64->res_flags;
1045 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1046 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1047
1048 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1049 sizeof(res->res_path));
1050
1051 res->bus = 0;
0cb992ed
WB		 1052 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1053 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1054 res->lun = scsilun_to_int(&res->dev_lun);
1055
1056 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1057 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1058 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1059 found = 1;
1060 res->target = gscsi_res->target;
1061 break;
1062 }
1063 }
1064 if (!found) {
1065 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1066 ioa_cfg->max_devs_supported);
1067 set_bit(res->target, ioa_cfg->target_ids);
1068 }
3e7ebdfa
WB		 1069 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1070 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1071 res->target = 0;
1072 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1073 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1074 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1075 ioa_cfg->max_devs_supported);
1076 set_bit(res->target, ioa_cfg->array_ids);
1077 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1078 res->bus = IPR_VSET_VIRTUAL_BUS;
1079 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1080 ioa_cfg->max_devs_supported);
1081 set_bit(res->target, ioa_cfg->vset_ids);
1082 } else {
1083 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1084 ioa_cfg->max_devs_supported);
1085 set_bit(res->target, ioa_cfg->target_ids);
1086 }
1087 } else {
1088 proto = cfgtew->u.cfgte->proto;
1089 res->qmodel = IPR_QUEUEING_MODEL(res);
1090 res->flags = cfgtew->u.cfgte->flags;
1091 if (res->flags & IPR_IS_IOA_RESOURCE)
1092 res->type = IPR_RES_TYPE_IOAFP;
1093 else
1094 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1095
1096 res->bus = cfgtew->u.cfgte->res_addr.bus;
1097 res->target = cfgtew->u.cfgte->res_addr.target;
1098 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1099 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1100 }
1101
1102 ipr_update_ata_class(res, proto);
1103}
1104
1105/**
1106 * ipr_is_same_device - Determine if two devices are the same.
1107 * @res: resource entry struct
1108 * @cfgtew: config table entry wrapper struct
1109 *
1110 * Return value:
1111 * 1 if the devices are the same / 0 otherwise
1112 **/
1113static int ipr_is_same_device(struct ipr_resource_entry *res,
1114 struct ipr_config_table_entry_wrapper *cfgtew)
1115{
1116 if (res->ioa_cfg->sis64) {
1117 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1118 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1119 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1120 sizeof(cfgtew->u.cfgte64->lun))) {
1121 return 1;
1122 }
1123 } else {
1124 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1125 res->target == cfgtew->u.cfgte->res_addr.target &&
1126 res->lun == cfgtew->u.cfgte->res_addr.lun)
1127 return 1;
1128 }
1129
1130 return 0;
1131}
1132
1133/**
5adcbeb3 1134 * ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1135 * @res_path: resource path
1136 * @buf: buffer
1137 *
1138 * Return value:
1139 * pointer to buffer
1140 **/
5adcbeb3 1141static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1142{
1143 int i;
5adcbeb3 1144 char *p = buffer;
3e7ebdfa 1145
46d74563 1146 *p = '\0';
5adcbeb3
WB		 1147 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1148 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1149 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1150
1151 return buffer;
1152}
1153
1154/**
1155 * ipr_update_res_entry - Update the resource entry.
1156 * @res: resource entry struct
1157 * @cfgtew: config table entry wrapper struct
1158 *
1159 * Return value:
1160 * none
1161 **/
1162static void ipr_update_res_entry(struct ipr_resource_entry *res,
1163 struct ipr_config_table_entry_wrapper *cfgtew)
1164{
1165 char buffer[IPR_MAX_RES_PATH_LENGTH];
1166 unsigned int proto;
1167 int new_path = 0;
1168
1169 if (res->ioa_cfg->sis64) {
1170 res->flags = cfgtew->u.cfgte64->flags;
1171 res->res_flags = cfgtew->u.cfgte64->res_flags;
75576bb9 1172 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1173
1174 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1175 sizeof(struct ipr_std_inq_data));
1176
1177 res->qmodel = IPR_QUEUEING_MODEL64(res);
1178 proto = cfgtew->u.cfgte64->proto;
1179 res->res_handle = cfgtew->u.cfgte64->res_handle;
1180 res->dev_id = cfgtew->u.cfgte64->dev_id;
1181
1182 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1183 sizeof(res->dev_lun.scsi_lun));
1184
1185 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1186 sizeof(res->res_path))) {
1187 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1188 sizeof(res->res_path));
1189 new_path = 1;
1190 }
1191
1192 if (res->sdev && new_path)
1193 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
5adcbeb3
WB		 1194 ipr_format_res_path(res->res_path, buffer,
1195 sizeof(buffer)));
3e7ebdfa
WB		 1196 } else {
1197 res->flags = cfgtew->u.cfgte->flags;
1198 if (res->flags & IPR_IS_IOA_RESOURCE)
1199 res->type = IPR_RES_TYPE_IOAFP;
1200 else
1201 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1202
1203 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1204 sizeof(struct ipr_std_inq_data));
1205
1206 res->qmodel = IPR_QUEUEING_MODEL(res);
1207 proto = cfgtew->u.cfgte->proto;
1208 res->res_handle = cfgtew->u.cfgte->res_handle;
1209 }
1210
1211 ipr_update_ata_class(res, proto);
1212}
1213
1214/**
1215 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1216 * for the resource.
1217 * @res: resource entry struct
1218 * @cfgtew: config table entry wrapper struct
1219 *
1220 * Return value:
1221 * none
1222 **/
1223static void ipr_clear_res_target(struct ipr_resource_entry *res)
1224{
1225 struct ipr_resource_entry *gscsi_res = NULL;
1226 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1227
1228 if (!ioa_cfg->sis64)
1229 return;
1230
1231 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1232 clear_bit(res->target, ioa_cfg->array_ids);
1233 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1234 clear_bit(res->target, ioa_cfg->vset_ids);
1235 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1236 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1237 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1238 return;
1239 clear_bit(res->target, ioa_cfg->target_ids);
1240
1241 } else if (res->bus == 0)
1242 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1243}
1244
1245/**
1246 * ipr_handle_config_change - Handle a config change from the adapter
1247 * @ioa_cfg: ioa config struct
1248 * @hostrcb: hostrcb
1249 *
1250 * Return value:
1251 * none
1252 **/
1253static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1254 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1255{
1256 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1257 struct ipr_config_table_entry_wrapper cfgtew;
1258 __be32 cc_res_handle;
1259
1da177e4
LT		 1260 u32 is_ndn = 1;
1261
3e7ebdfa
WB		 1262 if (ioa_cfg->sis64) {
1263 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1264 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1265 } else {
1266 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1267 cc_res_handle = cfgtew.u.cfgte->res_handle;
1268 }
1da177e4
LT		 1269
1270 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1271 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1272 is_ndn = 0;
1273 break;
1274 }
1275 }
1276
1277 if (is_ndn) {
1278 if (list_empty(&ioa_cfg->free_res_q)) {
1279 ipr_send_hcam(ioa_cfg,
1280 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1281 hostrcb);
1282 return;
1283 }
1284
1285 res = list_entry(ioa_cfg->free_res_q.next,
1286 struct ipr_resource_entry, queue);
1287
1288 list_del(&res->queue);
3e7ebdfa 1289 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1290 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1291 }
1292
3e7ebdfa 1293 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1294
1295 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1296 if (res->sdev) {
1da177e4 1297 res->del_from_ml = 1;
3e7ebdfa 1298 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 1299 if (ioa_cfg->allow_ml_add_del)
1300 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1301 } else {
1302 ipr_clear_res_target(res);
1da177e4 1303 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1304 }
5767a1c4 1305 } else if (!res->sdev || res->del_from_ml) {
1da177e4
LT		 1306 res->add_to_ml = 1;
1307 if (ioa_cfg->allow_ml_add_del)
1308 schedule_work(&ioa_cfg->work_q);
1309 }
1310
1311 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1312}
1313
1314/**
1315 * ipr_process_ccn - Op done function for a CCN.
1316 * @ipr_cmd: ipr command struct
1317 *
1318 * This function is the op done function for a configuration
1319 * change notification host controlled async from the adapter.
1320 *
1321 * Return value:
1322 * none
1323 **/
1324static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1325{
1326 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1327 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1328 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1329
1330 list_del(&hostrcb->queue);
1331 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1332
1333 if (ioasc) {
1334 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1335 dev_err(&ioa_cfg->pdev->dev,
1336 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1337
1338 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1339 } else {
1340 ipr_handle_config_change(ioa_cfg, hostrcb);
1341 }
1342}
1343
8cf093e2
BK		 1344/**
1345 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1346 * @i: index into buffer
1347 * @buf: string to modify
1348 *
1349 * This function will strip all trailing whitespace, pad the end
1350 * of the string with a single space, and NULL terminate the string.
1351 *
1352 * Return value:
1353 * new length of string
1354 **/
1355static int strip_and_pad_whitespace(int i, char *buf)
1356{
1357 while (i && buf[i] == ' ')
1358 i--;
1359 buf[i+1] = ' ';
1360 buf[i+2] = '\0';
1361 return i + 2;
1362}
1363
1364/**
1365 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1366 * @prefix: string to print at start of printk
1367 * @hostrcb: hostrcb pointer
1368 * @vpd: vendor/product id/sn struct
1369 *
1370 * Return value:
1371 * none
1372 **/
1373static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1374 struct ipr_vpd *vpd)
1375{
1376 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1377 int i = 0;
1378
1379 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1380 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1381
1382 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1383 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1384
1385 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1386 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1387
1388 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1389}
1390
1da177e4
LT		 1391/**
1392 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1393 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1394 *
1395 * Return value:
1396 * none
1397 **/
cfc32139 1398static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1399{
1400 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1401 + IPR_SERIAL_NUM_LEN];
1402
cfc32139
BK		 1403 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1404 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1405 IPR_PROD_ID_LEN);
1406 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1407 ipr_err("Vendor/Product ID: %s\n", buffer);
1408
cfc32139 1409 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1410 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1411 ipr_err(" Serial Number: %s\n", buffer);
1412}
1413
8cf093e2
BK		 1414/**
1415 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1416 * @prefix: string to print at start of printk
1417 * @hostrcb: hostrcb pointer
1418 * @vpd: vendor/product id/sn/wwn struct
1419 *
1420 * Return value:
1421 * none
1422 **/
1423static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1424 struct ipr_ext_vpd *vpd)
1425{
1426 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1427 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1428 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1429}
1430
ee0f05b8
BK		 1431/**
1432 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1433 * @vpd: vendor/product id/sn/wwn struct
1434 *
1435 * Return value:
1436 * none
1437 **/
1438static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1439{
1440 ipr_log_vpd(&vpd->vpd);
1441 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1442 be32_to_cpu(vpd->wwid[1]));
1443}
1444
1445/**
1446 * ipr_log_enhanced_cache_error - Log a cache error.
1447 * @ioa_cfg: ioa config struct
1448 * @hostrcb: hostrcb struct
1449 *
1450 * Return value:
1451 * none
1452 **/
1453static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1454 struct ipr_hostrcb *hostrcb)
1455{
4565e370
WB		 1456 struct ipr_hostrcb_type_12_error *error;
1457
1458 if (ioa_cfg->sis64)
1459 error = &hostrcb->hcam.u.error64.u.type_12_error;
1460 else
1461 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1462
1463 ipr_err("-----Current Configuration-----\n");
1464 ipr_err("Cache Directory Card Information:\n");
1465 ipr_log_ext_vpd(&error->ioa_vpd);
1466 ipr_err("Adapter Card Information:\n");
1467 ipr_log_ext_vpd(&error->cfc_vpd);
1468
1469 ipr_err("-----Expected Configuration-----\n");
1470 ipr_err("Cache Directory Card Information:\n");
1471 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1472 ipr_err("Adapter Card Information:\n");
1473 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1474
1475 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1476 be32_to_cpu(error->ioa_data[0]),
1477 be32_to_cpu(error->ioa_data[1]),
1478 be32_to_cpu(error->ioa_data[2]));
1479}
1480
1da177e4
LT		 1481/**
1482 * ipr_log_cache_error - Log a cache error.
1483 * @ioa_cfg: ioa config struct
1484 * @hostrcb: hostrcb struct
1485 *
1486 * Return value:
1487 * none
1488 **/
1489static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1490 struct ipr_hostrcb *hostrcb)
1491{
1492 struct ipr_hostrcb_type_02_error *error =
1493 &hostrcb->hcam.u.error.u.type_02_error;
1494
1495 ipr_err("-----Current Configuration-----\n");
1496 ipr_err("Cache Directory Card Information:\n");
cfc32139 1497 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1498 ipr_err("Adapter Card Information:\n");
cfc32139 1499 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1500
1501 ipr_err("-----Expected Configuration-----\n");
1502 ipr_err("Cache Directory Card Information:\n");
cfc32139 1503 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1504 ipr_err("Adapter Card Information:\n");
cfc32139 1505 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1506
1507 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1508 be32_to_cpu(error->ioa_data[0]),
1509 be32_to_cpu(error->ioa_data[1]),
1510 be32_to_cpu(error->ioa_data[2]));
1511}
1512
ee0f05b8
BK		 1513/**
1514 * ipr_log_enhanced_config_error - Log a configuration error.
1515 * @ioa_cfg: ioa config struct
1516 * @hostrcb: hostrcb struct
1517 *
1518 * Return value:
1519 * none
1520 **/
1521static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1522 struct ipr_hostrcb *hostrcb)
1523{
1524 int errors_logged, i;
1525 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1526 struct ipr_hostrcb_type_13_error *error;
1527
1528 error = &hostrcb->hcam.u.error.u.type_13_error;
1529 errors_logged = be32_to_cpu(error->errors_logged);
1530
1531 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1532 be32_to_cpu(error->errors_detected), errors_logged);
1533
1534 dev_entry = error->dev;
1535
1536 for (i = 0; i < errors_logged; i++, dev_entry++) {
1537 ipr_err_separator;
1538
1539 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1540 ipr_log_ext_vpd(&dev_entry->vpd);
1541
1542 ipr_err("-----New Device Information-----\n");
1543 ipr_log_ext_vpd(&dev_entry->new_vpd);
1544
1545 ipr_err("Cache Directory Card Information:\n");
1546 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1547
1548 ipr_err("Adapter Card Information:\n");
1549 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1550 }
1551}
1552
4565e370
WB		 1553/**
1554 * ipr_log_sis64_config_error - Log a device error.
1555 * @ioa_cfg: ioa config struct
1556 * @hostrcb: hostrcb struct
1557 *
1558 * Return value:
1559 * none
1560 **/
1561static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1562 struct ipr_hostrcb *hostrcb)
1563{
1564 int errors_logged, i;
1565 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1566 struct ipr_hostrcb_type_23_error *error;
1567 char buffer[IPR_MAX_RES_PATH_LENGTH];
1568
1569 error = &hostrcb->hcam.u.error64.u.type_23_error;
1570 errors_logged = be32_to_cpu(error->errors_logged);
1571
1572 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1573 be32_to_cpu(error->errors_detected), errors_logged);
1574
1575 dev_entry = error->dev;
1576
1577 for (i = 0; i < errors_logged; i++, dev_entry++) {
1578 ipr_err_separator;
1579
1580 ipr_err("Device %d : %s", i + 1,
5adcbeb3
WB		 1581 ipr_format_res_path(dev_entry->res_path, buffer,
1582 sizeof(buffer)));
4565e370
WB		 1583 ipr_log_ext_vpd(&dev_entry->vpd);
1584
1585 ipr_err("-----New Device Information-----\n");
1586 ipr_log_ext_vpd(&dev_entry->new_vpd);
1587
1588 ipr_err("Cache Directory Card Information:\n");
1589 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1590
1591 ipr_err("Adapter Card Information:\n");
1592 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1593 }
1594}
1595
1da177e4
LT		 1596/**
1597 * ipr_log_config_error - Log a configuration error.
1598 * @ioa_cfg: ioa config struct
1599 * @hostrcb: hostrcb struct
1600 *
1601 * Return value:
1602 * none
1603 **/
1604static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1605 struct ipr_hostrcb *hostrcb)
1606{
1607 int errors_logged, i;
1608 struct ipr_hostrcb_device_data_entry *dev_entry;
1609 struct ipr_hostrcb_type_03_error *error;
1610
1611 error = &hostrcb->hcam.u.error.u.type_03_error;
1612 errors_logged = be32_to_cpu(error->errors_logged);
1613
1614 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1615 be32_to_cpu(error->errors_detected), errors_logged);
1616
cfc32139 1617 dev_entry = error->dev;
1da177e4
LT		 1618
1619 for (i = 0; i < errors_logged; i++, dev_entry++) {
1620 ipr_err_separator;
1621
fa15b1f6 1622 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1623 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1624
1625 ipr_err("-----New Device Information-----\n");
cfc32139 1626 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1627
1628 ipr_err("Cache Directory Card Information:\n");
cfc32139 1629 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1630
1631 ipr_err("Adapter Card Information:\n");
cfc32139 1632 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1633
1634 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1635 be32_to_cpu(dev_entry->ioa_data[0]),
1636 be32_to_cpu(dev_entry->ioa_data[1]),
1637 be32_to_cpu(dev_entry->ioa_data[2]),
1638 be32_to_cpu(dev_entry->ioa_data[3]),
1639 be32_to_cpu(dev_entry->ioa_data[4]));
1640 }
1641}
1642
ee0f05b8
BK		 1643/**
1644 * ipr_log_enhanced_array_error - Log an array configuration error.
1645 * @ioa_cfg: ioa config struct
1646 * @hostrcb: hostrcb struct
1647 *
1648 * Return value:
1649 * none
1650 **/
1651static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1652 struct ipr_hostrcb *hostrcb)
1653{
1654 int i, num_entries;
1655 struct ipr_hostrcb_type_14_error *error;
1656 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1657 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1658
1659 error = &hostrcb->hcam.u.error.u.type_14_error;
1660
1661 ipr_err_separator;
1662
1663 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1664 error->protection_level,
1665 ioa_cfg->host->host_no,
1666 error->last_func_vset_res_addr.bus,
1667 error->last_func_vset_res_addr.target,
1668 error->last_func_vset_res_addr.lun);
1669
1670 ipr_err_separator;
1671
1672 array_entry = error->array_member;
1673 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1674 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1675
1676 for (i = 0; i < num_entries; i++, array_entry++) {
1677 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1678 continue;
1679
1680 if (be32_to_cpu(error->exposed_mode_adn) == i)
1681 ipr_err("Exposed Array Member %d:\n", i);
1682 else
1683 ipr_err("Array Member %d:\n", i);
1684
1685 ipr_log_ext_vpd(&array_entry->vpd);
1686 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1687 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1688 "Expected Location");
1689
1690 ipr_err_separator;
1691 }
1692}
1693
1da177e4
LT		 1694/**
1695 * ipr_log_array_error - Log an array configuration error.
1696 * @ioa_cfg: ioa config struct
1697 * @hostrcb: hostrcb struct
1698 *
1699 * Return value:
1700 * none
1701 **/
1702static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1703 struct ipr_hostrcb *hostrcb)
1704{
1705 int i;
1706 struct ipr_hostrcb_type_04_error *error;
1707 struct ipr_hostrcb_array_data_entry *array_entry;
1708 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1709
1710 error = &hostrcb->hcam.u.error.u.type_04_error;
1711
1712 ipr_err_separator;
1713
1714 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1715 error->protection_level,
1716 ioa_cfg->host->host_no,
1717 error->last_func_vset_res_addr.bus,
1718 error->last_func_vset_res_addr.target,
1719 error->last_func_vset_res_addr.lun);
1720
1721 ipr_err_separator;
1722
1723 array_entry = error->array_member;
1724
1725 for (i = 0; i < 18; i++) {
cfc32139 1726 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1727 continue;
1728
fa15b1f6 1729 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1730 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1731 else
1da177e4 1732 ipr_err("Array Member %d:\n", i);
1da177e4 1733
cfc32139 1734 ipr_log_vpd(&array_entry->vpd);
1da177e4 1735
fa15b1f6
BK		 1736 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1737 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1738 "Expected Location");
1da177e4
LT		 1739
1740 ipr_err_separator;
1741
1742 if (i == 9)
1743 array_entry = error->array_member2;
1744 else
1745 array_entry++;
1746 }
1747}
1748
1749/**
b0df54bb 1750 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1751 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1752 * @data: IOA error data
1753 * @len: data length
1da177e4
LT		 1754 *
1755 * Return value:
1756 * none
1757 **/
ac719aba 1758static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1759{
1760 int i;
1da177e4 1761
b0df54bb 1762 if (len == 0)
1da177e4
LT		 1763 return;
1764
ac719aba
BK		 1765 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1766 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1767
b0df54bb 1768 for (i = 0; i < len / 4; i += 4) {
1da177e4 1769 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1770 be32_to_cpu(data[i]),
1771 be32_to_cpu(data[i+1]),
1772 be32_to_cpu(data[i+2]),
1773 be32_to_cpu(data[i+3]));
1da177e4
LT		 1774 }
1775}
1776
ee0f05b8
BK		 1777/**
1778 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1779 * @ioa_cfg: ioa config struct
1780 * @hostrcb: hostrcb struct
1781 *
1782 * Return value:
1783 * none
1784 **/
1785static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1786 struct ipr_hostrcb *hostrcb)
1787{
1788 struct ipr_hostrcb_type_17_error *error;
1789
4565e370
WB		 1790 if (ioa_cfg->sis64)
1791 error = &hostrcb->hcam.u.error64.u.type_17_error;
1792 else
1793 error = &hostrcb->hcam.u.error.u.type_17_error;
1794
ee0f05b8 1795 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1796 strim(error->failure_reason);
ee0f05b8 1797
8cf093e2
BK		 1798 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1799 be32_to_cpu(hostrcb->hcam.u.error.prc));
1800 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1801 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1802 be32_to_cpu(hostrcb->hcam.length) -
1803 (offsetof(struct ipr_hostrcb_error, u) +
1804 offsetof(struct ipr_hostrcb_type_17_error, data)));
1805}
1806
b0df54bb
BK		 1807/**
1808 * ipr_log_dual_ioa_error - Log a dual adapter error.
1809 * @ioa_cfg: ioa config struct
1810 * @hostrcb: hostrcb struct
1811 *
1812 * Return value:
1813 * none
1814 **/
1815static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1816 struct ipr_hostrcb *hostrcb)
1817{
1818 struct ipr_hostrcb_type_07_error *error;
1819
1820 error = &hostrcb->hcam.u.error.u.type_07_error;
1821 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1822 strim(error->failure_reason);
b0df54bb 1823
8cf093e2
BK		 1824 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1825 be32_to_cpu(hostrcb->hcam.u.error.prc));
1826 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1827 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1828 be32_to_cpu(hostrcb->hcam.length) -
1829 (offsetof(struct ipr_hostrcb_error, u) +
1830 offsetof(struct ipr_hostrcb_type_07_error, data)));
1831}
1832
49dc6a18
BK		 1833static const struct {
1834 u8 active;
1835 char *desc;
1836} path_active_desc[] = {
1837 { IPR_PATH_NO_INFO, "Path" },
1838 { IPR_PATH_ACTIVE, "Active path" },
1839 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1840};
1841
1842static const struct {
1843 u8 state;
1844 char *desc;
1845} path_state_desc[] = {
1846 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1847 { IPR_PATH_HEALTHY, "is healthy" },
1848 { IPR_PATH_DEGRADED, "is degraded" },
1849 { IPR_PATH_FAILED, "is failed" }
1850};
1851
1852/**
1853 * ipr_log_fabric_path - Log a fabric path error
1854 * @hostrcb: hostrcb struct
1855 * @fabric: fabric descriptor
1856 *
1857 * Return value:
1858 * none
1859 **/
1860static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1861 struct ipr_hostrcb_fabric_desc *fabric)
1862{
1863 int i, j;
1864 u8 path_state = fabric->path_state;
1865 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1866 u8 state = path_state & IPR_PATH_STATE_MASK;
1867
1868 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1869 if (path_active_desc[i].active != active)
1870 continue;
1871
1872 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1873 if (path_state_desc[j].state != state)
1874 continue;
1875
1876 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1877 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1878 path_active_desc[i].desc, path_state_desc[j].desc,
1879 fabric->ioa_port);
1880 } else if (fabric->cascaded_expander == 0xff) {
1881 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1882 path_active_desc[i].desc, path_state_desc[j].desc,
1883 fabric->ioa_port, fabric->phy);
1884 } else if (fabric->phy == 0xff) {
1885 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1886 path_active_desc[i].desc, path_state_desc[j].desc,
1887 fabric->ioa_port, fabric->cascaded_expander);
1888 } else {
1889 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1890 path_active_desc[i].desc, path_state_desc[j].desc,
1891 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1892 }
1893 return;
1894 }
1895 }
1896
1897 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1898 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1899}
1900
4565e370
WB		 1901/**
1902 * ipr_log64_fabric_path - Log a fabric path error
1903 * @hostrcb: hostrcb struct
1904 * @fabric: fabric descriptor
1905 *
1906 * Return value:
1907 * none
1908 **/
1909static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1910 struct ipr_hostrcb64_fabric_desc *fabric)
1911{
1912 int i, j;
1913 u8 path_state = fabric->path_state;
1914 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1915 u8 state = path_state & IPR_PATH_STATE_MASK;
1916 char buffer[IPR_MAX_RES_PATH_LENGTH];
1917
1918 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1919 if (path_active_desc[i].active != active)
1920 continue;
1921
1922 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1923 if (path_state_desc[j].state != state)
1924 continue;
1925
1926 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1927 path_active_desc[i].desc, path_state_desc[j].desc,
5adcbeb3
WB		 1928 ipr_format_res_path(fabric->res_path, buffer,
1929 sizeof(buffer)));
4565e370
WB		 1930 return;
1931 }
1932 }
1933
1934 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
5adcbeb3 1935 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
4565e370
WB		 1936}
1937
49dc6a18
BK		 1938static const struct {
1939 u8 type;
1940 char *desc;
1941} path_type_desc[] = {
1942 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1943 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1944 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1945 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1946};
1947
1948static const struct {
1949 u8 status;
1950 char *desc;
1951} path_status_desc[] = {
1952 { IPR_PATH_CFG_NO_PROB, "Functional" },
1953 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1954 { IPR_PATH_CFG_FAILED, "Failed" },
1955 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1956 { IPR_PATH_NOT_DETECTED, "Missing" },
1957 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1958};
1959
1960static const char *link_rate[] = {
1961 "unknown",
1962 "disabled",
1963 "phy reset problem",
1964 "spinup hold",
1965 "port selector",
1966 "unknown",
1967 "unknown",
1968 "unknown",
1969 "1.5Gbps",
1970 "3.0Gbps",
1971 "unknown",
1972 "unknown",
1973 "unknown",
1974 "unknown",
1975 "unknown",
1976 "unknown"
1977};
1978
1979/**
1980 * ipr_log_path_elem - Log a fabric path element.
1981 * @hostrcb: hostrcb struct
1982 * @cfg: fabric path element struct
1983 *
1984 * Return value:
1985 * none
1986 **/
1987static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1988 struct ipr_hostrcb_config_element *cfg)
1989{
1990 int i, j;
1991 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1992 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1993
1994 if (type == IPR_PATH_CFG_NOT_EXIST)
1995 return;
1996
1997 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1998 if (path_type_desc[i].type != type)
1999 continue;
2000
2001 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2002 if (path_status_desc[j].status != status)
2003 continue;
2004
2005 if (type == IPR_PATH_CFG_IOA_PORT) {
2006 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2007 path_status_desc[j].desc, path_type_desc[i].desc,
2008 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2009 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2010 } else {
2011 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2012 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2013 path_status_desc[j].desc, path_type_desc[i].desc,
2014 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2015 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2016 } else if (cfg->cascaded_expander == 0xff) {
2017 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2018 "WWN=%08X%08X\n", path_status_desc[j].desc,
2019 path_type_desc[i].desc, cfg->phy,
2020 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2021 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2022 } else if (cfg->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2024 "WWN=%08X%08X\n", path_status_desc[j].desc,
2025 path_type_desc[i].desc, cfg->cascaded_expander,
2026 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2027 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2028 } else {
2029 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2030 "WWN=%08X%08X\n", path_status_desc[j].desc,
2031 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2032 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2033 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2034 }
2035 }
2036 return;
2037 }
2038 }
2039
2040 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2041 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2042 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2043 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2044}
2045
4565e370
WB		 2046/**
2047 * ipr_log64_path_elem - Log a fabric path element.
2048 * @hostrcb: hostrcb struct
2049 * @cfg: fabric path element struct
2050 *
2051 * Return value:
2052 * none
2053 **/
2054static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2055 struct ipr_hostrcb64_config_element *cfg)
2056{
2057 int i, j;
2058 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2059 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2060 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2061 char buffer[IPR_MAX_RES_PATH_LENGTH];
2062
2063 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2064 return;
2065
2066 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2067 if (path_type_desc[i].type != type)
2068 continue;
2069
2070 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2071 if (path_status_desc[j].status != status)
2072 continue;
2073
2074 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2075 path_status_desc[j].desc, path_type_desc[i].desc,
5adcbeb3
WB		 2076 ipr_format_res_path(cfg->res_path, buffer,
2077 sizeof(buffer)),
4565e370
WB		 2078 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2079 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2080 return;
2081 }
2082 }
2083 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2084 "WWN=%08X%08X\n", cfg->type_status,
5adcbeb3 2085 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
4565e370
WB		 2086 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2087 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2088}
2089
49dc6a18
BK		 2090/**
2091 * ipr_log_fabric_error - Log a fabric error.
2092 * @ioa_cfg: ioa config struct
2093 * @hostrcb: hostrcb struct
2094 *
2095 * Return value:
2096 * none
2097 **/
2098static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2099 struct ipr_hostrcb *hostrcb)
2100{
2101 struct ipr_hostrcb_type_20_error *error;
2102 struct ipr_hostrcb_fabric_desc *fabric;
2103 struct ipr_hostrcb_config_element *cfg;
2104 int i, add_len;
2105
2106 error = &hostrcb->hcam.u.error.u.type_20_error;
2107 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2108 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2109
2110 add_len = be32_to_cpu(hostrcb->hcam.length) -
2111 (offsetof(struct ipr_hostrcb_error, u) +
2112 offsetof(struct ipr_hostrcb_type_20_error, desc));
2113
2114 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2115 ipr_log_fabric_path(hostrcb, fabric);
2116 for_each_fabric_cfg(fabric, cfg)
2117 ipr_log_path_elem(hostrcb, cfg);
2118
2119 add_len -= be16_to_cpu(fabric->length);
2120 fabric = (struct ipr_hostrcb_fabric_desc *)
2121 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2122 }
2123
ac719aba 2124 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2125}
2126
4565e370
WB		 2127/**
2128 * ipr_log_sis64_array_error - Log a sis64 array error.
2129 * @ioa_cfg: ioa config struct
2130 * @hostrcb: hostrcb struct
2131 *
2132 * Return value:
2133 * none
2134 **/
2135static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2136 struct ipr_hostrcb *hostrcb)
2137{
2138 int i, num_entries;
2139 struct ipr_hostrcb_type_24_error *error;
2140 struct ipr_hostrcb64_array_data_entry *array_entry;
2141 char buffer[IPR_MAX_RES_PATH_LENGTH];
2142 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2143
2144 error = &hostrcb->hcam.u.error64.u.type_24_error;
2145
2146 ipr_err_separator;
2147
2148 ipr_err("RAID %s Array Configuration: %s\n",
2149 error->protection_level,
5adcbeb3 2150 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
4565e370
WB		 2151
2152 ipr_err_separator;
2153
2154 array_entry = error->array_member;
7262026f
WB		 2155 num_entries = min_t(u32, error->num_entries,
2156 ARRAY_SIZE(error->array_member));
4565e370
WB		 2157
2158 for (i = 0; i < num_entries; i++, array_entry++) {
2159
2160 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2161 continue;
2162
2163 if (error->exposed_mode_adn == i)
2164 ipr_err("Exposed Array Member %d:\n", i);
2165 else
2166 ipr_err("Array Member %d:\n", i);
2167
2168 ipr_err("Array Member %d:\n", i);
2169 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2170 ipr_err("Current Location: %s\n",
5adcbeb3
WB		 2171 ipr_format_res_path(array_entry->res_path, buffer,
2172 sizeof(buffer)));
7262026f 2173 ipr_err("Expected Location: %s\n",
5adcbeb3
WB		 2174 ipr_format_res_path(array_entry->expected_res_path,
2175 buffer, sizeof(buffer)));
4565e370
WB		 2176
2177 ipr_err_separator;
2178 }
2179}
2180
2181/**
2182 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2183 * @ioa_cfg: ioa config struct
2184 * @hostrcb: hostrcb struct
2185 *
2186 * Return value:
2187 * none
2188 **/
2189static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2190 struct ipr_hostrcb *hostrcb)
2191{
2192 struct ipr_hostrcb_type_30_error *error;
2193 struct ipr_hostrcb64_fabric_desc *fabric;
2194 struct ipr_hostrcb64_config_element *cfg;
2195 int i, add_len;
2196
2197 error = &hostrcb->hcam.u.error64.u.type_30_error;
2198
2199 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2200 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2201
2202 add_len = be32_to_cpu(hostrcb->hcam.length) -
2203 (offsetof(struct ipr_hostrcb64_error, u) +
2204 offsetof(struct ipr_hostrcb_type_30_error, desc));
2205
2206 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2207 ipr_log64_fabric_path(hostrcb, fabric);
2208 for_each_fabric_cfg(fabric, cfg)
2209 ipr_log64_path_elem(hostrcb, cfg);
2210
2211 add_len -= be16_to_cpu(fabric->length);
2212 fabric = (struct ipr_hostrcb64_fabric_desc *)
2213 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2214 }
2215
2216 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2217}
2218
b0df54bb
BK		 2219/**
2220 * ipr_log_generic_error - Log an adapter error.
2221 * @ioa_cfg: ioa config struct
2222 * @hostrcb: hostrcb struct
2223 *
2224 * Return value:
2225 * none
2226 **/
2227static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2228 struct ipr_hostrcb *hostrcb)
2229{
ac719aba 2230 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2231 be32_to_cpu(hostrcb->hcam.length));
2232}
2233
1da177e4
LT		 2234/**
2235 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2236 * @ioasc: IOASC
2237 *
2238 * This function will return the index of into the ipr_error_table
2239 * for the specified IOASC. If the IOASC is not in the table,
2240 * 0 will be returned, which points to the entry used for unknown errors.
2241 *
2242 * Return value:
2243 * index into the ipr_error_table
2244 **/
2245static u32 ipr_get_error(u32 ioasc)
2246{
2247 int i;
2248
2249 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2250 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2251 return i;
2252
2253 return 0;
2254}
2255
2256/**
2257 * ipr_handle_log_data - Log an adapter error.
2258 * @ioa_cfg: ioa config struct
2259 * @hostrcb: hostrcb struct
2260 *
2261 * This function logs an adapter error to the system.
2262 *
2263 * Return value:
2264 * none
2265 **/
2266static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2267 struct ipr_hostrcb *hostrcb)
2268{
2269 u32 ioasc;
2270 int error_index;
2271
2272 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2273 return;
2274
2275 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2276 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2277
4565e370
WB		 2278 if (ioa_cfg->sis64)
2279 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2280 else
2281 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2282
4565e370
WB		 2283 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2284 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2285 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2286 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2287 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2288 }
2289
2290 error_index = ipr_get_error(ioasc);
2291
2292 if (!ipr_error_table[error_index].log_hcam)
2293 return;
2294
49dc6a18 2295 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2296
2297 /* Set indication we have logged an error */
2298 ioa_cfg->errors_logged++;
2299
933916f3 2300 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2301 return;
cf852037
BK		 2302 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2303 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2304
2305 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2306 case IPR_HOST_RCB_OVERLAY_ID_2:
2307 ipr_log_cache_error(ioa_cfg, hostrcb);
2308 break;
2309 case IPR_HOST_RCB_OVERLAY_ID_3:
2310 ipr_log_config_error(ioa_cfg, hostrcb);
2311 break;
2312 case IPR_HOST_RCB_OVERLAY_ID_4:
2313 case IPR_HOST_RCB_OVERLAY_ID_6:
2314 ipr_log_array_error(ioa_cfg, hostrcb);
2315 break;
b0df54bb
BK		 2316 case IPR_HOST_RCB_OVERLAY_ID_7:
2317 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2318 break;
ee0f05b8
BK		 2319 case IPR_HOST_RCB_OVERLAY_ID_12:
2320 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2321 break;
2322 case IPR_HOST_RCB_OVERLAY_ID_13:
2323 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2324 break;
2325 case IPR_HOST_RCB_OVERLAY_ID_14:
2326 case IPR_HOST_RCB_OVERLAY_ID_16:
2327 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2328 break;
2329 case IPR_HOST_RCB_OVERLAY_ID_17:
2330 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2331 break;
49dc6a18
BK		 2332 case IPR_HOST_RCB_OVERLAY_ID_20:
2333 ipr_log_fabric_error(ioa_cfg, hostrcb);
2334 break;
4565e370
WB		 2335 case IPR_HOST_RCB_OVERLAY_ID_23:
2336 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2337 break;
2338 case IPR_HOST_RCB_OVERLAY_ID_24:
2339 case IPR_HOST_RCB_OVERLAY_ID_26:
2340 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2341 break;
2342 case IPR_HOST_RCB_OVERLAY_ID_30:
2343 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2344 break;
cf852037 2345 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2346 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2347 default:
a9cfca96 2348 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2349 break;
2350 }
2351}
2352
2353/**
2354 * ipr_process_error - Op done function for an adapter error log.
2355 * @ipr_cmd: ipr command struct
2356 *
2357 * This function is the op done function for an error log host
2358 * controlled async from the adapter. It will log the error and
2359 * send the HCAM back to the adapter.
2360 *
2361 * Return value:
2362 * none
2363 **/
2364static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2365{
2366 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2367 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2368 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2369 u32 fd_ioasc;
2370
2371 if (ioa_cfg->sis64)
2372 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2373 else
2374 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2375
2376 list_del(&hostrcb->queue);
2377 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2378
2379 if (!ioasc) {
2380 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2381 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2382 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2383 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2384 dev_err(&ioa_cfg->pdev->dev,
2385 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2386 }
2387
2388 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2389}
2390
2391/**
2392 * ipr_timeout - An internally generated op has timed out.
2393 * @ipr_cmd: ipr command struct
2394 *
2395 * This function blocks host requests and initiates an
2396 * adapter reset.
2397 *
2398 * Return value:
2399 * none
2400 **/
2401static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2402{
2403 unsigned long lock_flags = 0;
2404 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2405
2406 ENTER;
2407 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2408
2409 ioa_cfg->errors_logged++;
2410 dev_err(&ioa_cfg->pdev->dev,
2411 "Adapter being reset due to command timeout.\n");
2412
2413 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2414 ioa_cfg->sdt_state = GET_DUMP;
2415
2416 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2417 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2418
2419 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2420 LEAVE;
2421}
2422
2423/**
2424 * ipr_oper_timeout - Adapter timed out transitioning to operational
2425 * @ipr_cmd: ipr command struct
2426 *
2427 * This function blocks host requests and initiates an
2428 * adapter reset.
2429 *
2430 * Return value:
2431 * none
2432 **/
2433static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2434{
2435 unsigned long lock_flags = 0;
2436 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2437
2438 ENTER;
2439 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2440
2441 ioa_cfg->errors_logged++;
2442 dev_err(&ioa_cfg->pdev->dev,
2443 "Adapter timed out transitioning to operational.\n");
2444
2445 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2446 ioa_cfg->sdt_state = GET_DUMP;
2447
2448 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2449 if (ipr_fastfail)
2450 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2451 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2452 }
2453
2454 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2455 LEAVE;
2456}
2457
2458/**
2459 * ipr_reset_reload - Reset/Reload the IOA
2460 * @ioa_cfg: ioa config struct
2461 * @shutdown_type: shutdown type
2462 *
2463 * This function resets the adapter and re-initializes it.
2464 * This function assumes that all new host commands have been stopped.
2465 * Return value:
2466 * SUCCESS / FAILED
2467 **/
2468static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2469 enum ipr_shutdown_type shutdown_type)
2470{
2471 if (!ioa_cfg->in_reset_reload)
2472 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2473
2474 spin_unlock_irq(ioa_cfg->host->host_lock);
2475 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2476 spin_lock_irq(ioa_cfg->host->host_lock);
2477
2478 /* If we got hit with a host reset while we were already resetting
2479 the adapter for some reason, and the reset failed. */
2480 if (ioa_cfg->ioa_is_dead) {
2481 ipr_trace;
2482 return FAILED;
2483 }
2484
2485 return SUCCESS;
2486}
2487
2488/**
2489 * ipr_find_ses_entry - Find matching SES in SES table
2490 * @res: resource entry struct of SES
2491 *
2492 * Return value:
2493 * pointer to SES table entry / NULL on failure
2494 **/
2495static const struct ipr_ses_table_entry *
2496ipr_find_ses_entry(struct ipr_resource_entry *res)
2497{
2498 int i, j, matches;
3e7ebdfa 2499 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2500 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2501
2502 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2503 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2504 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2505 vpids = &res->std_inq_data.vpids;
2506 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2507 matches++;
2508 else
2509 break;
2510 } else
2511 matches++;
2512 }
2513
2514 if (matches == IPR_PROD_ID_LEN)
2515 return ste;
2516 }
2517
2518 return NULL;
2519}
2520
2521/**
2522 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2523 * @ioa_cfg: ioa config struct
2524 * @bus: SCSI bus
2525 * @bus_width: bus width
2526 *
2527 * Return value:
2528 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2529 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2530 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2531 * max 160MHz = max 320MB/sec).
2532 **/
2533static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2534{
2535 struct ipr_resource_entry *res;
2536 const struct ipr_ses_table_entry *ste;
2537 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2538
2539 /* Loop through each config table entry in the config table buffer */
2540 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2541 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2542 continue;
2543
3e7ebdfa 2544 if (bus != res->bus)
1da177e4
LT		 2545 continue;
2546
2547 if (!(ste = ipr_find_ses_entry(res)))
2548 continue;
2549
2550 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2551 }
2552
2553 return max_xfer_rate;
2554}
2555
2556/**
2557 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2558 * @ioa_cfg: ioa config struct
2559 * @max_delay: max delay in micro-seconds to wait
2560 *
2561 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2562 *
2563 * Return value:
2564 * 0 on success / other on failure
2565 **/
2566static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2567{
2568 volatile u32 pcii_reg;
2569 int delay = 1;
2570
2571 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2572 while (delay < max_delay) {
2573 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2574
2575 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2576 return 0;
2577
2578 /* udelay cannot be used if delay is more than a few milliseconds */
2579 if ((delay / 1000) > MAX_UDELAY_MS)
2580 mdelay(delay / 1000);
2581 else
2582 udelay(delay);
2583
2584 delay += delay;
2585 }
2586 return -EIO;
2587}
2588
dcbad00e
WB		 2589/**
2590 * ipr_get_sis64_dump_data_section - Dump IOA memory
2591 * @ioa_cfg: ioa config struct
2592 * @start_addr: adapter address to dump
2593 * @dest: destination kernel buffer
2594 * @length_in_words: length to dump in 4 byte words
2595 *
2596 * Return value:
2597 * 0 on success
2598 **/
2599static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2600 u32 start_addr,
2601 __be32 *dest, u32 length_in_words)
2602{
2603 int i;
2604
2605 for (i = 0; i < length_in_words; i++) {
2606 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2607 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2608 dest++;
2609 }
2610
2611 return 0;
2612}
2613
1da177e4
LT		 2614/**
2615 * ipr_get_ldump_data_section - Dump IOA memory
2616 * @ioa_cfg: ioa config struct
2617 * @start_addr: adapter address to dump
2618 * @dest: destination kernel buffer
2619 * @length_in_words: length to dump in 4 byte words
2620 *
2621 * Return value:
2622 * 0 on success / -EIO on failure
2623 **/
2624static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2625 u32 start_addr,
2626 __be32 *dest, u32 length_in_words)
2627{
2628 volatile u32 temp_pcii_reg;
2629 int i, delay = 0;
2630
dcbad00e
WB		 2631 if (ioa_cfg->sis64)
2632 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2633 dest, length_in_words);
2634
1da177e4
LT		 2635 /* Write IOA interrupt reg starting LDUMP state */
2636 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2637 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2638
2639 /* Wait for IO debug acknowledge */
2640 if (ipr_wait_iodbg_ack(ioa_cfg,
2641 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2642 dev_err(&ioa_cfg->pdev->dev,
2643 "IOA dump long data transfer timeout\n");
2644 return -EIO;
2645 }
2646
2647 /* Signal LDUMP interlocked - clear IO debug ack */
2648 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2649 ioa_cfg->regs.clr_interrupt_reg);
2650
2651 /* Write Mailbox with starting address */
2652 writel(start_addr, ioa_cfg->ioa_mailbox);
2653
2654 /* Signal address valid - clear IOA Reset alert */
2655 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2656 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2657
2658 for (i = 0; i < length_in_words; i++) {
2659 /* Wait for IO debug acknowledge */
2660 if (ipr_wait_iodbg_ack(ioa_cfg,
2661 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2662 dev_err(&ioa_cfg->pdev->dev,
2663 "IOA dump short data transfer timeout\n");
2664 return -EIO;
2665 }
2666
2667 /* Read data from mailbox and increment destination pointer */
2668 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2669 dest++;
2670
2671 /* For all but the last word of data, signal data received */
2672 if (i < (length_in_words - 1)) {
2673 /* Signal dump data received - Clear IO debug Ack */
2674 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2675 ioa_cfg->regs.clr_interrupt_reg);
2676 }
2677 }
2678
2679 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2680 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2681 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2682
2683 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2684 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2685
2686 /* Signal dump data received - Clear IO debug Ack */
2687 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2688 ioa_cfg->regs.clr_interrupt_reg);
2689
2690 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2691 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2692 temp_pcii_reg =
214777ba 2693 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2694
2695 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2696 return 0;
2697
2698 udelay(10);
2699 delay += 10;
2700 }
2701
2702 return 0;
2703}
2704
2705#ifdef CONFIG_SCSI_IPR_DUMP
2706/**
2707 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2708 * @ioa_cfg: ioa config struct
2709 * @pci_address: adapter address
2710 * @length: length of data to copy
2711 *
2712 * Copy data from PCI adapter to kernel buffer.
2713 * Note: length MUST be a 4 byte multiple
2714 * Return value:
2715 * 0 on success / other on failure
2716 **/
2717static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2718 unsigned long pci_address, u32 length)
2719{
2720 int bytes_copied = 0;
4d4dd706 2721 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2722 __be32 *page;
2723 unsigned long lock_flags = 0;
2724 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2725
4d4dd706
KSS		 2726 if (ioa_cfg->sis64)
2727 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2728 else
2729 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2730
1da177e4 2731 while (bytes_copied < length &&
4d4dd706 2732 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2733 if (ioa_dump->page_offset >= PAGE_SIZE ||
2734 ioa_dump->page_offset == 0) {
2735 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2736
2737 if (!page) {
2738 ipr_trace;
2739 return bytes_copied;
2740 }
2741
2742 ioa_dump->page_offset = 0;
2743 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2744 ioa_dump->next_page_index++;
2745 } else
2746 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2747
2748 rem_len = length - bytes_copied;
2749 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2750 cur_len = min(rem_len, rem_page_len);
2751
2752 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2753 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2754 rc = -EIO;
2755 } else {
2756 rc = ipr_get_ldump_data_section(ioa_cfg,
2757 pci_address + bytes_copied,
2758 &page[ioa_dump->page_offset / 4],
2759 (cur_len / sizeof(u32)));
2760 }
2761 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2762
2763 if (!rc) {
2764 ioa_dump->page_offset += cur_len;
2765 bytes_copied += cur_len;
2766 } else {
2767 ipr_trace;
2768 break;
2769 }
2770 schedule();
2771 }
2772
2773 return bytes_copied;
2774}
2775
2776/**
2777 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2778 * @hdr: dump entry header struct
2779 *
2780 * Return value:
2781 * nothing
2782 **/
2783static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2784{
2785 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2786 hdr->num_elems = 1;
2787 hdr->offset = sizeof(*hdr);
2788 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2789}
2790
2791/**
2792 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2793 * @ioa_cfg: ioa config struct
2794 * @driver_dump: driver dump struct
2795 *
2796 * Return value:
2797 * nothing
2798 **/
2799static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2800 struct ipr_driver_dump *driver_dump)
2801{
2802 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2803
2804 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2805 driver_dump->ioa_type_entry.hdr.len =
2806 sizeof(struct ipr_dump_ioa_type_entry) -
2807 sizeof(struct ipr_dump_entry_header);
2808 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2809 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2810 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2811 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2812 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2813 ucode_vpd->minor_release[1];
2814 driver_dump->hdr.num_entries++;
2815}
2816
2817/**
2818 * ipr_dump_version_data - Fill in the driver version in the dump.
2819 * @ioa_cfg: ioa config struct
2820 * @driver_dump: driver dump struct
2821 *
2822 * Return value:
2823 * nothing
2824 **/
2825static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2826 struct ipr_driver_dump *driver_dump)
2827{
2828 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2829 driver_dump->version_entry.hdr.len =
2830 sizeof(struct ipr_dump_version_entry) -
2831 sizeof(struct ipr_dump_entry_header);
2832 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2833 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2834 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2835 driver_dump->hdr.num_entries++;
2836}
2837
2838/**
2839 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2840 * @ioa_cfg: ioa config struct
2841 * @driver_dump: driver dump struct
2842 *
2843 * Return value:
2844 * nothing
2845 **/
2846static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2847 struct ipr_driver_dump *driver_dump)
2848{
2849 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2850 driver_dump->trace_entry.hdr.len =
2851 sizeof(struct ipr_dump_trace_entry) -
2852 sizeof(struct ipr_dump_entry_header);
2853 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2854 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2855 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2856 driver_dump->hdr.num_entries++;
2857}
2858
2859/**
2860 * ipr_dump_location_data - Fill in the IOA location in the dump.
2861 * @ioa_cfg: ioa config struct
2862 * @driver_dump: driver dump struct
2863 *
2864 * Return value:
2865 * nothing
2866 **/
2867static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2868 struct ipr_driver_dump *driver_dump)
2869{
2870 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2871 driver_dump->location_entry.hdr.len =
2872 sizeof(struct ipr_dump_location_entry) -
2873 sizeof(struct ipr_dump_entry_header);
2874 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2875 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 2876 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 2877 driver_dump->hdr.num_entries++;
2878}
2879
2880/**
2881 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2882 * @ioa_cfg: ioa config struct
2883 * @dump: dump struct
2884 *
2885 * Return value:
2886 * nothing
2887 **/
2888static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2889{
2890 unsigned long start_addr, sdt_word;
2891 unsigned long lock_flags = 0;
2892 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2893 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 2894 u32 num_entries, max_num_entries, start_off, end_off;
2895 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 2896 struct ipr_sdt *sdt;
dcbad00e 2897 int valid = 1;
1da177e4
LT		 2898 int i;
2899
2900 ENTER;
2901
2902 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2903
41e9a696 2904 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 2905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2906 return;
2907 }
2908
110def85
WB		 2909 if (ioa_cfg->sis64) {
2910 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2911 ssleep(IPR_DUMP_DELAY_SECONDS);
2912 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2913 }
2914
1da177e4
LT		 2915 start_addr = readl(ioa_cfg->ioa_mailbox);
2916
dcbad00e 2917 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 2918 dev_err(&ioa_cfg->pdev->dev,
2919 "Invalid dump table format: %lx\n", start_addr);
2920 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2921 return;
2922 }
2923
2924 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2925
2926 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2927
2928 /* Initialize the overall dump header */
2929 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2930 driver_dump->hdr.num_entries = 1;
2931 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2932 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2933 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2934 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2935
2936 ipr_dump_version_data(ioa_cfg, driver_dump);
2937 ipr_dump_location_data(ioa_cfg, driver_dump);
2938 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2939 ipr_dump_trace_data(ioa_cfg, driver_dump);
2940
2941 /* Update dump_header */
2942 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2943
2944 /* IOA Dump entry */
2945 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 2946 ioa_dump->hdr.len = 0;
2947 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2948 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2949
2950 /* First entries in sdt are actually a list of dump addresses and
2951 lengths to gather the real dump data. sdt represents the pointer
2952 to the ioa generated dump table. Dump data will be extracted based
2953 on entries in this table */
2954 sdt = &ioa_dump->sdt;
2955
4d4dd706
KSS		 2956 if (ioa_cfg->sis64) {
2957 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
2958 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2959 } else {
2960 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
2961 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2962 }
2963
2964 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
2965 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 2966 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 2967 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 2968
2969 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 2970 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2971 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 2972 dev_err(&ioa_cfg->pdev->dev,
2973 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2974 rc, be32_to_cpu(sdt->hdr.state));
2975 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2976 ioa_cfg->sdt_state = DUMP_OBTAINED;
2977 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2978 return;
2979 }
2980
2981 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2982
4d4dd706
KSS		 2983 if (num_entries > max_num_entries)
2984 num_entries = max_num_entries;
2985
2986 /* Update dump length to the actual data to be copied */
2987 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
2988 if (ioa_cfg->sis64)
2989 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
2990 else
2991 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 2992
2993 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2994
2995 for (i = 0; i < num_entries; i++) {
4d4dd706 2996 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 2997 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2998 break;
2999 }
3000
3001 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3002 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3003 if (ioa_cfg->sis64)
3004 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3005 else {
3006 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3007 end_off = be32_to_cpu(sdt->entry[i].end_token);
3008
3009 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3010 bytes_to_copy = end_off - start_off;
3011 else
3012 valid = 0;
3013 }
3014 if (valid) {
4d4dd706 3015 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3016 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3017 continue;
3018 }
3019
3020 /* Copy data from adapter to driver buffers */
3021 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3022 bytes_to_copy);
3023
3024 ioa_dump->hdr.len += bytes_copied;
3025
3026 if (bytes_copied != bytes_to_copy) {
3027 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3028 break;
3029 }
3030 }
3031 }
3032 }
3033
3034 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3035
3036 /* Update dump_header */
3037 driver_dump->hdr.len += ioa_dump->hdr.len;
3038 wmb();
3039 ioa_cfg->sdt_state = DUMP_OBTAINED;
3040 LEAVE;
3041}
3042
3043#else
3044#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3045#endif
3046
3047/**
3048 * ipr_release_dump - Free adapter dump memory
3049 * @kref: kref struct
3050 *
3051 * Return value:
3052 * nothing
3053 **/
3054static void ipr_release_dump(struct kref *kref)
3055{
3056 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3057 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3058 unsigned long lock_flags = 0;
3059 int i;
3060
3061 ENTER;
3062 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3063 ioa_cfg->dump = NULL;
3064 ioa_cfg->sdt_state = INACTIVE;
3065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3066
3067 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3068 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3069
4d4dd706 3070 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3071 kfree(dump);
3072 LEAVE;
3073}
3074
3075/**
3076 * ipr_worker_thread - Worker thread
c4028958 3077 * @work: ioa config struct
1da177e4
LT		 3078 *
3079 * Called at task level from a work thread. This function takes care
3080 * of adding and removing device from the mid-layer as configuration
3081 * changes are detected by the adapter.
3082 *
3083 * Return value:
3084 * nothing
3085 **/
c4028958 3086static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3087{
3088 unsigned long lock_flags;
3089 struct ipr_resource_entry *res;
3090 struct scsi_device *sdev;
3091 struct ipr_dump *dump;
c4028958
DH		 3092 struct ipr_ioa_cfg *ioa_cfg =
3093 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3094 u8 bus, target, lun;
3095 int did_work;
3096
3097 ENTER;
3098 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3099
41e9a696 3100 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3101 dump = ioa_cfg->dump;
3102 if (!dump) {
3103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3104 return;
3105 }
3106 kref_get(&dump->kref);
3107 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3108 ipr_get_ioa_dump(ioa_cfg, dump);
3109 kref_put(&dump->kref, ipr_release_dump);
3110
3111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3112 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3113 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3115 return;
3116 }
3117
3118restart:
3119 do {
3120 did_work = 0;
3121 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3123 return;
3124 }
3125
3126 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3127 if (res->del_from_ml && res->sdev) {
3128 did_work = 1;
3129 sdev = res->sdev;
3130 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3131 if (!res->add_to_ml)
3132 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3133 else
3134 res->del_from_ml = 0;
1da177e4
LT		 3135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3136 scsi_remove_device(sdev);
3137 scsi_device_put(sdev);
3138 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3139 }
3140 break;
3141 }
3142 }
3143 } while(did_work);
3144
3145 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3146 if (res->add_to_ml) {
3e7ebdfa
WB		 3147 bus = res->bus;
3148 target = res->target;
3149 lun = res->lun;
1121b794 3150 res->add_to_ml = 0;
1da177e4
LT		 3151 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3152 scsi_add_device(ioa_cfg->host, bus, target, lun);
3153 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3154 goto restart;
3155 }
3156 }
3157
3158 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3159 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3160 LEAVE;
3161}
3162
3163#ifdef CONFIG_SCSI_IPR_TRACE
3164/**
3165 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3166 * @filp: open sysfs file
1da177e4 3167 * @kobj: kobject struct
91a69029 3168 * @bin_attr: bin_attribute struct
1da177e4
LT		 3169 * @buf: buffer
3170 * @off: offset
3171 * @count: buffer size
3172 *
3173 * Return value:
3174 * number of bytes printed to buffer
3175 **/
2c3c8bea 3176static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3177 struct bin_attribute *bin_attr,
3178 char *buf, loff_t off, size_t count)
1da177e4 3179{
ee959b00
TJ		 3180 struct device *dev = container_of(kobj, struct device, kobj);
3181 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3182 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3183 unsigned long lock_flags = 0;
d777aaf3 3184 ssize_t ret;
1da177e4
LT		 3185
3186 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3187 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3188 IPR_TRACE_SIZE);
1da177e4 3189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3190
3191 return ret;
1da177e4
LT		 3192}
3193
3194static struct bin_attribute ipr_trace_attr = {
3195 .attr = {
3196 .name = "trace",
3197 .mode = S_IRUGO,
3198 },
3199 .size = 0,
3200 .read = ipr_read_trace,
3201};
3202#endif
3203
3204/**
3205 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3206 * @dev: class device struct
3207 * @buf: buffer
1da177e4
LT		 3208 *
3209 * Return value:
3210 * number of bytes printed to buffer
3211 **/
ee959b00
TJ		 3212static ssize_t ipr_show_fw_version(struct device *dev,
3213 struct device_attribute *attr, char *buf)
1da177e4 3214{
ee959b00 3215 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3216 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3217 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3218 unsigned long lock_flags = 0;
3219 int len;
3220
3221 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3222 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3223 ucode_vpd->major_release, ucode_vpd->card_type,
3224 ucode_vpd->minor_release[0],
3225 ucode_vpd->minor_release[1]);
3226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3227 return len;
3228}
3229
ee959b00 3230static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3231 .attr = {
3232 .name = "fw_version",
3233 .mode = S_IRUGO,
3234 },
3235 .show = ipr_show_fw_version,
3236};
3237
3238/**
3239 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3240 * @dev: class device struct
3241 * @buf: buffer
1da177e4
LT		 3242 *
3243 * Return value:
3244 * number of bytes printed to buffer
3245 **/
ee959b00
TJ		 3246static ssize_t ipr_show_log_level(struct device *dev,
3247 struct device_attribute *attr, char *buf)
1da177e4 3248{
ee959b00 3249 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3250 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3251 unsigned long lock_flags = 0;
3252 int len;
3253
3254 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3255 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3256 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3257 return len;
3258}
3259
3260/**
3261 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3262 * @dev: class device struct
3263 * @buf: buffer
1da177e4
LT		 3264 *
3265 * Return value:
3266 * number of bytes printed to buffer
3267 **/
ee959b00
TJ		 3268static ssize_t ipr_store_log_level(struct device *dev,
3269 struct device_attribute *attr,
1da177e4
LT		 3270 const char *buf, size_t count)
3271{
ee959b00 3272 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3273 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3274 unsigned long lock_flags = 0;
3275
3276 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3277 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3278 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3279 return strlen(buf);
3280}
3281
ee959b00 3282static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3283 .attr = {
3284 .name = "log_level",
3285 .mode = S_IRUGO | S_IWUSR,
3286 },
3287 .show = ipr_show_log_level,
3288 .store = ipr_store_log_level
3289};
3290
3291/**
3292 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3293 * @dev: device struct
3294 * @buf: buffer
3295 * @count: buffer size
1da177e4
LT		 3296 *
3297 * This function will reset the adapter and wait a reasonable
3298 * amount of time for any errors that the adapter might log.
3299 *
3300 * Return value:
3301 * count on success / other on failure
3302 **/
ee959b00
TJ		 3303static ssize_t ipr_store_diagnostics(struct device *dev,
3304 struct device_attribute *attr,
1da177e4
LT		 3305 const char *buf, size_t count)
3306{
ee959b00 3307 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3308 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3309 unsigned long lock_flags = 0;
3310 int rc = count;
3311
3312 if (!capable(CAP_SYS_ADMIN))
3313 return -EACCES;
3314
1da177e4 3315 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3316 while(ioa_cfg->in_reset_reload) {
3317 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3318 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3319 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3320 }
3321
1da177e4
LT		 3322 ioa_cfg->errors_logged = 0;
3323 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3324
3325 if (ioa_cfg->in_reset_reload) {
3326 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3327 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3328
3329 /* Wait for a second for any errors to be logged */
3330 msleep(1000);
3331 } else {
3332 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3333 return -EIO;
3334 }
3335
3336 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3337 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3338 rc = -EIO;
3339 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3340
3341 return rc;
3342}
3343
ee959b00 3344static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3345 .attr = {
3346 .name = "run_diagnostics",
3347 .mode = S_IWUSR,
3348 },
3349 .store = ipr_store_diagnostics
3350};
3351
f37eb54b
BK		 3352/**
3353 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3354 * @class_dev: device struct
3355 * @buf: buffer
f37eb54b
BK		 3356 *
3357 * Return value:
3358 * number of bytes printed to buffer
3359 **/
ee959b00
TJ		 3360static ssize_t ipr_show_adapter_state(struct device *dev,
3361 struct device_attribute *attr, char *buf)
f37eb54b 3362{
ee959b00 3363 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3364 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3365 unsigned long lock_flags = 0;
3366 int len;
3367
3368 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3369 if (ioa_cfg->ioa_is_dead)
3370 len = snprintf(buf, PAGE_SIZE, "offline\n");
3371 else
3372 len = snprintf(buf, PAGE_SIZE, "online\n");
3373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3374 return len;
3375}
3376
3377/**
3378 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3379 * @dev: device struct
3380 * @buf: buffer
3381 * @count: buffer size
f37eb54b
BK		 3382 *
3383 * This function will change the adapter's state.
3384 *
3385 * Return value:
3386 * count on success / other on failure
3387 **/
ee959b00
TJ		 3388static ssize_t ipr_store_adapter_state(struct device *dev,
3389 struct device_attribute *attr,
f37eb54b
BK		 3390 const char *buf, size_t count)
3391{
ee959b00 3392 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3393 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3394 unsigned long lock_flags;
3395 int result = count;
3396
3397 if (!capable(CAP_SYS_ADMIN))
3398 return -EACCES;
3399
3400 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3401 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3402 ioa_cfg->ioa_is_dead = 0;
3403 ioa_cfg->reset_retries = 0;
3404 ioa_cfg->in_ioa_bringdown = 0;
3405 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3406 }
3407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3408 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3409
3410 return result;
3411}
3412
ee959b00 3413static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3414 .attr = {
49dd0961 3415 .name = "online_state",
f37eb54b
BK		 3416 .mode = S_IRUGO | S_IWUSR,
3417 },
3418 .show = ipr_show_adapter_state,
3419 .store = ipr_store_adapter_state
3420};
3421
1da177e4
LT		 3422/**
3423 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3424 * @dev: device struct
3425 * @buf: buffer
3426 * @count: buffer size
1da177e4
LT		 3427 *
3428 * This function will reset the adapter.
3429 *
3430 * Return value:
3431 * count on success / other on failure
3432 **/
ee959b00
TJ		 3433static ssize_t ipr_store_reset_adapter(struct device *dev,
3434 struct device_attribute *attr,
1da177e4
LT		 3435 const char *buf, size_t count)
3436{
ee959b00 3437 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3438 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3439 unsigned long lock_flags;
3440 int result = count;
3441
3442 if (!capable(CAP_SYS_ADMIN))
3443 return -EACCES;
3444
3445 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3446 if (!ioa_cfg->in_reset_reload)
3447 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3448 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3449 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3450
3451 return result;
3452}
3453
ee959b00 3454static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3455 .attr = {
3456 .name = "reset_host",
3457 .mode = S_IWUSR,
3458 },
3459 .store = ipr_store_reset_adapter
3460};
3461
3462/**
3463 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3464 * @buf_len: buffer length
3465 *
3466 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3467 * list to use for microcode download
3468 *
3469 * Return value:
3470 * pointer to sglist / NULL on failure
3471 **/
3472static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3473{
3474 int sg_size, order, bsize_elem, num_elem, i, j;
3475 struct ipr_sglist *sglist;
3476 struct scatterlist *scatterlist;
3477 struct page *page;
3478
3479 /* Get the minimum size per scatter/gather element */
3480 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3481
3482 /* Get the actual size per element */
3483 order = get_order(sg_size);
3484
3485 /* Determine the actual number of bytes per element */
3486 bsize_elem = PAGE_SIZE * (1 << order);
3487
3488 /* Determine the actual number of sg entries needed */
3489 if (buf_len % bsize_elem)
3490 num_elem = (buf_len / bsize_elem) + 1;
3491 else
3492 num_elem = buf_len / bsize_elem;
3493
3494 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3495 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3496 (sizeof(struct scatterlist) * (num_elem - 1)),
3497 GFP_KERNEL);
3498
3499 if (sglist == NULL) {
3500 ipr_trace;
3501 return NULL;
3502 }
3503
1da177e4 3504 scatterlist = sglist->scatterlist;
45711f1a 3505 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3506
3507 sglist->order = order;
3508 sglist->num_sg = num_elem;
3509
3510 /* Allocate a bunch of sg elements */
3511 for (i = 0; i < num_elem; i++) {
3512 page = alloc_pages(GFP_KERNEL, order);
3513 if (!page) {
3514 ipr_trace;
3515
3516 /* Free up what we already allocated */
3517 for (j = i - 1; j >= 0; j--)
45711f1a 3518 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3519 kfree(sglist);
3520 return NULL;
3521 }
3522
642f1490 3523 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3524 }
3525
3526 return sglist;
3527}
3528
3529/**
3530 * ipr_free_ucode_buffer - Frees a microcode download buffer
3531 * @p_dnld: scatter/gather list pointer
3532 *
3533 * Free a DMA'able ucode download buffer previously allocated with
3534 * ipr_alloc_ucode_buffer
3535 *
3536 * Return value:
3537 * nothing
3538 **/
3539static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3540{
3541 int i;
3542
3543 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3544 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3545
3546 kfree(sglist);
3547}
3548
3549/**
3550 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3551 * @sglist: scatter/gather list pointer
3552 * @buffer: buffer pointer
3553 * @len: buffer length
3554 *
3555 * Copy a microcode image from a user buffer into a buffer allocated by
3556 * ipr_alloc_ucode_buffer
3557 *
3558 * Return value:
3559 * 0 on success / other on failure
3560 **/
3561static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3562 u8 *buffer, u32 len)
3563{
3564 int bsize_elem, i, result = 0;
3565 struct scatterlist *scatterlist;
3566 void *kaddr;
3567
3568 /* Determine the actual number of bytes per element */
3569 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3570
3571 scatterlist = sglist->scatterlist;
3572
3573 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3574 struct page *page = sg_page(&scatterlist[i]);
3575
3576 kaddr = kmap(page);
1da177e4 3577 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3578 kunmap(page);
1da177e4
LT		 3579
3580 scatterlist[i].length = bsize_elem;
3581
3582 if (result != 0) {
3583 ipr_trace;
3584 return result;
3585 }
3586 }
3587
3588 if (len % bsize_elem) {
45711f1a
JA		 3589 struct page *page = sg_page(&scatterlist[i]);
3590
3591 kaddr = kmap(page);
1da177e4 3592 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3593 kunmap(page);
1da177e4
LT		 3594
3595 scatterlist[i].length = len % bsize_elem;
3596 }
3597
3598 sglist->buffer_len = len;
3599 return result;
3600}
3601
a32c055f
WB		 3602/**
3603 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3604 * @ipr_cmd: ipr command struct
3605 * @sglist: scatter/gather list
3606 *
3607 * Builds a microcode download IOA data list (IOADL).
3608 *
3609 **/
3610static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3611 struct ipr_sglist *sglist)
3612{
3613 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3614 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3615 struct scatterlist *scatterlist = sglist->scatterlist;
3616 int i;
3617
3618 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3619 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3620 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3621
3622 ioarcb->ioadl_len =
3623 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3624 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3625 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3626 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3627 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3628 }
3629
3630 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3631}
3632
1da177e4 3633/**
12baa420 3634 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3635 * @ipr_cmd: ipr command struct
3636 * @sglist: scatter/gather list
1da177e4 3637 *
12baa420 3638 * Builds a microcode download IOA data list (IOADL).
1da177e4 3639 *
1da177e4 3640 **/
12baa420
BK		 3641static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3642 struct ipr_sglist *sglist)
1da177e4 3643{
1da177e4 3644 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3645 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3646 struct scatterlist *scatterlist = sglist->scatterlist;
3647 int i;
3648
12baa420 3649 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3650 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3651 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3652
3653 ioarcb->ioadl_len =
1da177e4
LT		 3654 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3655
3656 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3657 ioadl[i].flags_and_data_len =
3658 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3659 ioadl[i].address =
3660 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3661 }
3662
12baa420
BK		 3663 ioadl[i-1].flags_and_data_len |=
3664 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3665}
3666
3667/**
3668 * ipr_update_ioa_ucode - Update IOA's microcode
3669 * @ioa_cfg: ioa config struct
3670 * @sglist: scatter/gather list
3671 *
3672 * Initiate an adapter reset to update the IOA's microcode
3673 *
3674 * Return value:
3675 * 0 on success / -EIO on failure
3676 **/
3677static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3678 struct ipr_sglist *sglist)
3679{
3680 unsigned long lock_flags;
3681
3682 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3683 while(ioa_cfg->in_reset_reload) {
3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3686 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3687 }
12baa420
BK		 3688
3689 if (ioa_cfg->ucode_sglist) {
3690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3691 dev_err(&ioa_cfg->pdev->dev,
3692 "Microcode download already in progress\n");
3693 return -EIO;
1da177e4 3694 }
12baa420
BK		 3695
3696 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3697 sglist->num_sg, DMA_TO_DEVICE);
3698
3699 if (!sglist->num_dma_sg) {
3700 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3701 dev_err(&ioa_cfg->pdev->dev,
3702 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3703 return -EIO;
3704 }
3705
12baa420
BK		 3706 ioa_cfg->ucode_sglist = sglist;
3707 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3708 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3709 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3710
3711 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3712 ioa_cfg->ucode_sglist = NULL;
3713 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3714 return 0;
3715}
3716
3717/**
3718 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3719 * @class_dev: device struct
3720 * @buf: buffer
3721 * @count: buffer size
1da177e4
LT		 3722 *
3723 * This function will update the firmware on the adapter.
3724 *
3725 * Return value:
3726 * count on success / other on failure
3727 **/
ee959b00
TJ		 3728static ssize_t ipr_store_update_fw(struct device *dev,
3729 struct device_attribute *attr,
3730 const char *buf, size_t count)
1da177e4 3731{
ee959b00 3732 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3733 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3734 struct ipr_ucode_image_header *image_hdr;
3735 const struct firmware *fw_entry;
3736 struct ipr_sglist *sglist;
1da177e4
LT		 3737 char fname[100];
3738 char *src;
3739 int len, result, dnld_size;
3740
3741 if (!capable(CAP_SYS_ADMIN))
3742 return -EACCES;
3743
3744 len = snprintf(fname, 99, "%s", buf);
3745 fname[len-1] = '\0';
3746
3747 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3748 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3749 return -EIO;
3750 }
3751
3752 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3753
1da177e4
LT		 3754 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3755 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3756 sglist = ipr_alloc_ucode_buffer(dnld_size);
3757
3758 if (!sglist) {
3759 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3760 release_firmware(fw_entry);
3761 return -ENOMEM;
3762 }
3763
3764 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3765
3766 if (result) {
3767 dev_err(&ioa_cfg->pdev->dev,
3768 "Microcode buffer copy to DMA buffer failed\n");
12baa420 3769 goto out;
1da177e4
LT		 3770 }
3771
14ed9cc7
WB		 3772 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
3773
12baa420 3774 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 3775
12baa420
BK		 3776 if (!result)
3777 result = count;
3778out:
1da177e4
LT		 3779 ipr_free_ucode_buffer(sglist);
3780 release_firmware(fw_entry);
12baa420 3781 return result;
1da177e4
LT		 3782}
3783
ee959b00 3784static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 3785 .attr = {
3786 .name = "update_fw",
3787 .mode = S_IWUSR,
3788 },
3789 .store = ipr_store_update_fw
3790};
3791
75576bb9
WB		 3792/**
3793 * ipr_show_fw_type - Show the adapter's firmware type.
3794 * @dev: class device struct
3795 * @buf: buffer
3796 *
3797 * Return value:
3798 * number of bytes printed to buffer
3799 **/
3800static ssize_t ipr_show_fw_type(struct device *dev,
3801 struct device_attribute *attr, char *buf)
3802{
3803 struct Scsi_Host *shost = class_to_shost(dev);
3804 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3805 unsigned long lock_flags = 0;
3806 int len;
3807
3808 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3809 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3810 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3811 return len;
3812}
3813
3814static struct device_attribute ipr_ioa_fw_type_attr = {
3815 .attr = {
3816 .name = "fw_type",
3817 .mode = S_IRUGO,
3818 },
3819 .show = ipr_show_fw_type
3820};
3821
ee959b00 3822static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 3823 &ipr_fw_version_attr,
3824 &ipr_log_level_attr,
3825 &ipr_diagnostics_attr,
f37eb54b 3826 &ipr_ioa_state_attr,
1da177e4
LT		 3827 &ipr_ioa_reset_attr,
3828 &ipr_update_fw_attr,
75576bb9 3829 &ipr_ioa_fw_type_attr,
1da177e4
LT		 3830 NULL,
3831};
3832
3833#ifdef CONFIG_SCSI_IPR_DUMP
3834/**
3835 * ipr_read_dump - Dump the adapter
2c3c8bea 3836 * @filp: open sysfs file
1da177e4 3837 * @kobj: kobject struct
91a69029 3838 * @bin_attr: bin_attribute struct
1da177e4
LT		 3839 * @buf: buffer
3840 * @off: offset
3841 * @count: buffer size
3842 *
3843 * Return value:
3844 * number of bytes printed to buffer
3845 **/
2c3c8bea 3846static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3847 struct bin_attribute *bin_attr,
3848 char *buf, loff_t off, size_t count)
1da177e4 3849{
ee959b00 3850 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 3851 struct Scsi_Host *shost = class_to_shost(cdev);
3852 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3853 struct ipr_dump *dump;
3854 unsigned long lock_flags = 0;
3855 char *src;
4d4dd706 3856 int len, sdt_end;
1da177e4
LT		 3857 size_t rc = count;
3858
3859 if (!capable(CAP_SYS_ADMIN))
3860 return -EACCES;
3861
3862 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3863 dump = ioa_cfg->dump;
3864
3865 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3866 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3867 return 0;
3868 }
3869 kref_get(&dump->kref);
3870 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3871
3872 if (off > dump->driver_dump.hdr.len) {
3873 kref_put(&dump->kref, ipr_release_dump);
3874 return 0;
3875 }
3876
3877 if (off + count > dump->driver_dump.hdr.len) {
3878 count = dump->driver_dump.hdr.len - off;
3879 rc = count;
3880 }
3881
3882 if (count && off < sizeof(dump->driver_dump)) {
3883 if (off + count > sizeof(dump->driver_dump))
3884 len = sizeof(dump->driver_dump) - off;
3885 else
3886 len = count;
3887 src = (u8 *)&dump->driver_dump + off;
3888 memcpy(buf, src, len);
3889 buf += len;
3890 off += len;
3891 count -= len;
3892 }
3893
3894 off -= sizeof(dump->driver_dump);
3895
4d4dd706
KSS		 3896 if (ioa_cfg->sis64)
3897 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3898 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
3899 sizeof(struct ipr_sdt_entry));
3900 else
3901 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3902 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
3903
3904 if (count && off < sdt_end) {
3905 if (off + count > sdt_end)
3906 len = sdt_end - off;
1da177e4
LT		 3907 else
3908 len = count;
3909 src = (u8 *)&dump->ioa_dump + off;
3910 memcpy(buf, src, len);
3911 buf += len;
3912 off += len;
3913 count -= len;
3914 }
3915
4d4dd706 3916 off -= sdt_end;
1da177e4
LT		 3917
3918 while (count) {
3919 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3920 len = PAGE_ALIGN(off) - off;
3921 else
3922 len = count;
3923 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3924 src += off & ~PAGE_MASK;
3925 memcpy(buf, src, len);
3926 buf += len;
3927 off += len;
3928 count -= len;
3929 }
3930
3931 kref_put(&dump->kref, ipr_release_dump);
3932 return rc;
3933}
3934
3935/**
3936 * ipr_alloc_dump - Prepare for adapter dump
3937 * @ioa_cfg: ioa config struct
3938 *
3939 * Return value:
3940 * 0 on success / other on failure
3941 **/
3942static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3943{
3944 struct ipr_dump *dump;
4d4dd706 3945 __be32 **ioa_data;
1da177e4
LT		 3946 unsigned long lock_flags = 0;
3947
0bc42e35 3948 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 3949
3950 if (!dump) {
3951 ipr_err("Dump memory allocation failed\n");
3952 return -ENOMEM;
3953 }
3954
4d4dd706
KSS		 3955 if (ioa_cfg->sis64)
3956 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3957 else
3958 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3959
3960 if (!ioa_data) {
3961 ipr_err("Dump memory allocation failed\n");
3962 kfree(dump);
3963 return -ENOMEM;
3964 }
3965
3966 dump->ioa_dump.ioa_data = ioa_data;
3967
1da177e4
LT		 3968 kref_init(&dump->kref);
3969 dump->ioa_cfg = ioa_cfg;
3970
3971 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3972
3973 if (INACTIVE != ioa_cfg->sdt_state) {
3974 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 3975 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3976 kfree(dump);
3977 return 0;
3978 }
3979
3980 ioa_cfg->dump = dump;
3981 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3982 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3983 ioa_cfg->dump_taken = 1;
3984 schedule_work(&ioa_cfg->work_q);
3985 }
3986 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3987
1da177e4
LT		 3988 return 0;
3989}
3990
3991/**
3992 * ipr_free_dump - Free adapter dump memory
3993 * @ioa_cfg: ioa config struct
3994 *
3995 * Return value:
3996 * 0 on success / other on failure
3997 **/
3998static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3999{
4000 struct ipr_dump *dump;
4001 unsigned long lock_flags = 0;
4002
4003 ENTER;
4004
4005 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4006 dump = ioa_cfg->dump;
4007 if (!dump) {
4008 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4009 return 0;
4010 }
4011
4012 ioa_cfg->dump = NULL;
4013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4014
4015 kref_put(&dump->kref, ipr_release_dump);
4016
4017 LEAVE;
4018 return 0;
4019}
4020
4021/**
4022 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4023 * @filp: open sysfs file
1da177e4 4024 * @kobj: kobject struct
91a69029 4025 * @bin_attr: bin_attribute struct
1da177e4
LT		 4026 * @buf: buffer
4027 * @off: offset
4028 * @count: buffer size
4029 *
4030 * Return value:
4031 * number of bytes printed to buffer
4032 **/
2c3c8bea 4033static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4034 struct bin_attribute *bin_attr,
4035 char *buf, loff_t off, size_t count)
1da177e4 4036{
ee959b00 4037 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4038 struct Scsi_Host *shost = class_to_shost(cdev);
4039 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4040 int rc;
4041
4042 if (!capable(CAP_SYS_ADMIN))
4043 return -EACCES;
4044
4045 if (buf[0] == '1')
4046 rc = ipr_alloc_dump(ioa_cfg);
4047 else if (buf[0] == '0')
4048 rc = ipr_free_dump(ioa_cfg);
4049 else
4050 return -EINVAL;
4051
4052 if (rc)
4053 return rc;
4054 else
4055 return count;
4056}
4057
4058static struct bin_attribute ipr_dump_attr = {
4059 .attr = {
4060 .name = "dump",
4061 .mode = S_IRUSR | S_IWUSR,
4062 },
4063 .size = 0,
4064 .read = ipr_read_dump,
4065 .write = ipr_write_dump
4066};
4067#else
4068static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4069#endif
4070
4071/**
4072 * ipr_change_queue_depth - Change the device's queue depth
4073 * @sdev: scsi device struct
4074 * @qdepth: depth to set
e881a172 4075 * @reason: calling context
1da177e4
LT		 4076 *
4077 * Return value:
4078 * actual depth set
4079 **/
e881a172
MC		 4080static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4081 int reason)
1da177e4 4082{
35a39691
BK		 4083 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4084 struct ipr_resource_entry *res;
4085 unsigned long lock_flags = 0;
4086
e881a172
MC		 4087 if (reason != SCSI_QDEPTH_DEFAULT)
4088 return -EOPNOTSUPP;
4089
35a39691
BK		 4090 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4091 res = (struct ipr_resource_entry *)sdev->hostdata;
4092
4093 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4094 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4095 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4096
1da177e4
LT		 4097 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4098 return sdev->queue_depth;
4099}
4100
4101/**
4102 * ipr_change_queue_type - Change the device's queue type
4103 * @dsev: scsi device struct
4104 * @tag_type: type of tags to use
4105 *
4106 * Return value:
4107 * actual queue type set
4108 **/
4109static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4110{
4111 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4112 struct ipr_resource_entry *res;
4113 unsigned long lock_flags = 0;
4114
4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4116 res = (struct ipr_resource_entry *)sdev->hostdata;
4117
4118 if (res) {
4119 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4120 /*
4121 * We don't bother quiescing the device here since the
4122 * adapter firmware does it for us.
4123 */
4124 scsi_set_tag_type(sdev, tag_type);
4125
4126 if (tag_type)
4127 scsi_activate_tcq(sdev, sdev->queue_depth);
4128 else
4129 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4130 } else
4131 tag_type = 0;
4132 } else
4133 tag_type = 0;
4134
4135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4136 return tag_type;
4137}
4138
4139/**
4140 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4141 * @dev: device struct
46d74563 4142 * @attr: device attribute structure
1da177e4
LT		 4143 * @buf: buffer
4144 *
4145 * Return value:
4146 * number of bytes printed to buffer
4147 **/
10523b3b 4148static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4149{
4150 struct scsi_device *sdev = to_scsi_device(dev);
4151 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4152 struct ipr_resource_entry *res;
4153 unsigned long lock_flags = 0;
4154 ssize_t len = -ENXIO;
4155
4156 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4157 res = (struct ipr_resource_entry *)sdev->hostdata;
4158 if (res)
3e7ebdfa 4159 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4161 return len;
4162}
4163
4164static struct device_attribute ipr_adapter_handle_attr = {
4165 .attr = {
4166 .name = "adapter_handle",
4167 .mode = S_IRUSR,
4168 },
4169 .show = ipr_show_adapter_handle
4170};
4171
3e7ebdfa 4172/**
5adcbeb3
WB		 4173 * ipr_show_resource_path - Show the resource path or the resource address for
4174 * this device.
3e7ebdfa 4175 * @dev: device struct
46d74563 4176 * @attr: device attribute structure
3e7ebdfa
WB		 4177 * @buf: buffer
4178 *
4179 * Return value:
4180 * number of bytes printed to buffer
4181 **/
4182static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4183{
4184 struct scsi_device *sdev = to_scsi_device(dev);
4185 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4186 struct ipr_resource_entry *res;
4187 unsigned long lock_flags = 0;
4188 ssize_t len = -ENXIO;
4189 char buffer[IPR_MAX_RES_PATH_LENGTH];
4190
4191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4192 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4193 if (res && ioa_cfg->sis64)
3e7ebdfa 4194 len = snprintf(buf, PAGE_SIZE, "%s\n",
5adcbeb3
WB		 4195 ipr_format_res_path(res->res_path, buffer,
4196 sizeof(buffer)));
4197 else if (res)
4198 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4199 res->bus, res->target, res->lun);
4200
3e7ebdfa
WB		 4201 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4202 return len;
4203}
4204
4205static struct device_attribute ipr_resource_path_attr = {
4206 .attr = {
4207 .name = "resource_path",
75576bb9 4208 .mode = S_IRUGO,
3e7ebdfa
WB		 4209 },
4210 .show = ipr_show_resource_path
4211};
4212
46d74563
WB		 4213/**
4214 * ipr_show_device_id - Show the device_id for this device.
4215 * @dev: device struct
4216 * @attr: device attribute structure
4217 * @buf: buffer
4218 *
4219 * Return value:
4220 * number of bytes printed to buffer
4221 **/
4222static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4223{
4224 struct scsi_device *sdev = to_scsi_device(dev);
4225 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4226 struct ipr_resource_entry *res;
4227 unsigned long lock_flags = 0;
4228 ssize_t len = -ENXIO;
4229
4230 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4231 res = (struct ipr_resource_entry *)sdev->hostdata;
4232 if (res && ioa_cfg->sis64)
4233 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4234 else if (res)
4235 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4236
4237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4238 return len;
4239}
4240
4241static struct device_attribute ipr_device_id_attr = {
4242 .attr = {
4243 .name = "device_id",
4244 .mode = S_IRUGO,
4245 },
4246 .show = ipr_show_device_id
4247};
4248
75576bb9
WB		 4249/**
4250 * ipr_show_resource_type - Show the resource type for this device.
4251 * @dev: device struct
46d74563 4252 * @attr: device attribute structure
75576bb9
WB		 4253 * @buf: buffer
4254 *
4255 * Return value:
4256 * number of bytes printed to buffer
4257 **/
4258static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4259{
4260 struct scsi_device *sdev = to_scsi_device(dev);
4261 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4262 struct ipr_resource_entry *res;
4263 unsigned long lock_flags = 0;
4264 ssize_t len = -ENXIO;
4265
4266 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4267 res = (struct ipr_resource_entry *)sdev->hostdata;
4268
4269 if (res)
4270 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4271
4272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4273 return len;
4274}
4275
4276static struct device_attribute ipr_resource_type_attr = {
4277 .attr = {
4278 .name = "resource_type",
4279 .mode = S_IRUGO,
4280 },
4281 .show = ipr_show_resource_type
4282};
4283
1da177e4
LT		 4284static struct device_attribute *ipr_dev_attrs[] = {
4285 &ipr_adapter_handle_attr,
3e7ebdfa 4286 &ipr_resource_path_attr,
46d74563 4287 &ipr_device_id_attr,
75576bb9 4288 &ipr_resource_type_attr,
1da177e4
LT		 4289 NULL,
4290};
4291
4292/**
4293 * ipr_biosparam - Return the HSC mapping
4294 * @sdev: scsi device struct
4295 * @block_device: block device pointer
4296 * @capacity: capacity of the device
4297 * @parm: Array containing returned HSC values.
4298 *
4299 * This function generates the HSC parms that fdisk uses.
4300 * We want to make sure we return something that places partitions
4301 * on 4k boundaries for best performance with the IOA.
4302 *
4303 * Return value:
4304 * 0 on success
4305 **/
4306static int ipr_biosparam(struct scsi_device *sdev,
4307 struct block_device *block_device,
4308 sector_t capacity, int *parm)
4309{
4310 int heads, sectors;
4311 sector_t cylinders;
4312
4313 heads = 128;
4314 sectors = 32;
4315
4316 cylinders = capacity;
4317 sector_div(cylinders, (128 * 32));
4318
4319 /* return result */
4320 parm[0] = heads;
4321 parm[1] = sectors;
4322 parm[2] = cylinders;
4323
4324 return 0;
4325}
4326
35a39691
BK		 4327/**
4328 * ipr_find_starget - Find target based on bus/target.
4329 * @starget: scsi target struct
4330 *
4331 * Return value:
4332 * resource entry pointer if found / NULL if not found
4333 **/
4334static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4335{
4336 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4337 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4338 struct ipr_resource_entry *res;
4339
4340 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4341 if ((res->bus == starget->channel) &&
0ee1d714 4342 (res->target == starget->id)) {
35a39691
BK		 4343 return res;
4344 }
4345 }
4346
4347 return NULL;
4348}
4349
4350static struct ata_port_info sata_port_info;
4351
4352/**
4353 * ipr_target_alloc - Prepare for commands to a SCSI target
4354 * @starget: scsi target struct
4355 *
4356 * If the device is a SATA device, this function allocates an
4357 * ATA port with libata, else it does nothing.
4358 *
4359 * Return value:
4360 * 0 on success / non-0 on failure
4361 **/
4362static int ipr_target_alloc(struct scsi_target *starget)
4363{
4364 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4365 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4366 struct ipr_sata_port *sata_port;
4367 struct ata_port *ap;
4368 struct ipr_resource_entry *res;
4369 unsigned long lock_flags;
4370
4371 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4372 res = ipr_find_starget(starget);
4373 starget->hostdata = NULL;
4374
4375 if (res && ipr_is_gata(res)) {
4376 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4377 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4378 if (!sata_port)
4379 return -ENOMEM;
4380
4381 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4382 if (ap) {
4383 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4384 sata_port->ioa_cfg = ioa_cfg;
4385 sata_port->ap = ap;
4386 sata_port->res = res;
4387
4388 res->sata_port = sata_port;
4389 ap->private_data = sata_port;
4390 starget->hostdata = sata_port;
4391 } else {
4392 kfree(sata_port);
4393 return -ENOMEM;
4394 }
4395 }
4396 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4397
4398 return 0;
4399}
4400
4401/**
4402 * ipr_target_destroy - Destroy a SCSI target
4403 * @starget: scsi target struct
4404 *
4405 * If the device was a SATA device, this function frees the libata
4406 * ATA port, else it does nothing.
4407 *
4408 **/
4409static void ipr_target_destroy(struct scsi_target *starget)
4410{
4411 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4412 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4413 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4414
4415 if (ioa_cfg->sis64) {
0ee1d714
BK		 4416 if (!ipr_find_starget(starget)) {
4417 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4418 clear_bit(starget->id, ioa_cfg->array_ids);
4419 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4420 clear_bit(starget->id, ioa_cfg->vset_ids);
4421 else if (starget->channel == 0)
4422 clear_bit(starget->id, ioa_cfg->target_ids);
4423 }
3e7ebdfa 4424 }
35a39691
BK		 4425
4426 if (sata_port) {
4427 starget->hostdata = NULL;
4428 ata_sas_port_destroy(sata_port->ap);
4429 kfree(sata_port);
4430 }
4431}
4432
4433/**
4434 * ipr_find_sdev - Find device based on bus/target/lun.
4435 * @sdev: scsi device struct
4436 *
4437 * Return value:
4438 * resource entry pointer if found / NULL if not found
4439 **/
4440static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4441{
4442 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4443 struct ipr_resource_entry *res;
4444
4445 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4446 if ((res->bus == sdev->channel) &&
4447 (res->target == sdev->id) &&
4448 (res->lun == sdev->lun))
35a39691
BK		 4449 return res;
4450 }
4451
4452 return NULL;
4453}
4454
1da177e4
LT		 4455/**
4456 * ipr_slave_destroy - Unconfigure a SCSI device
4457 * @sdev: scsi device struct
4458 *
4459 * Return value:
4460 * nothing
4461 **/
4462static void ipr_slave_destroy(struct scsi_device *sdev)
4463{
4464 struct ipr_resource_entry *res;
4465 struct ipr_ioa_cfg *ioa_cfg;
4466 unsigned long lock_flags = 0;
4467
4468 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4469
4470 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4471 res = (struct ipr_resource_entry *) sdev->hostdata;
4472 if (res) {
35a39691 4473 if (res->sata_port)
3e4ec344 4474 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4475 sdev->hostdata = NULL;
4476 res->sdev = NULL;
35a39691 4477 res->sata_port = NULL;
1da177e4
LT		 4478 }
4479 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4480}
4481
4482/**
4483 * ipr_slave_configure - Configure a SCSI device
4484 * @sdev: scsi device struct
4485 *
4486 * This function configures the specified scsi device.
4487 *
4488 * Return value:
4489 * 0 on success
4490 **/
4491static int ipr_slave_configure(struct scsi_device *sdev)
4492{
4493 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4494 struct ipr_resource_entry *res;
dd406ef8 4495 struct ata_port *ap = NULL;
1da177e4 4496 unsigned long lock_flags = 0;
3e7ebdfa 4497 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4498
4499 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4500 res = sdev->hostdata;
4501 if (res) {
4502 if (ipr_is_af_dasd_device(res))
4503 sdev->type = TYPE_RAID;
0726ce26 4504 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4505 sdev->scsi_level = 4;
0726ce26
BK		 4506 sdev->no_uld_attach = 1;
4507 }
1da177e4 4508 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4509 blk_queue_rq_timeout(sdev->request_queue,
4510 IPR_VSET_RW_TIMEOUT);
086fa5ff 4511 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4512 }
dd406ef8
BK		 4513 if (ipr_is_gata(res) && res->sata_port)
4514 ap = res->sata_port->ap;
4515 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4516
4517 if (ap) {
35a39691 4518 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8
BK		 4519 ata_sas_slave_configure(sdev, ap);
4520 } else
35a39691 4521 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3e7ebdfa
WB		 4522 if (ioa_cfg->sis64)
4523 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
5adcbeb3
WB		 4524 ipr_format_res_path(res->res_path, buffer,
4525 sizeof(buffer)));
dd406ef8 4526 return 0;
1da177e4
LT		 4527 }
4528 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4529 return 0;
4530}
4531
35a39691
BK		 4532/**
4533 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4534 * @sdev: scsi device struct
4535 *
4536 * This function initializes an ATA port so that future commands
4537 * sent through queuecommand will work.
4538 *
4539 * Return value:
4540 * 0 on success
4541 **/
4542static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4543{
4544 struct ipr_sata_port *sata_port = NULL;
4545 int rc = -ENXIO;
4546
4547 ENTER;
4548 if (sdev->sdev_target)
4549 sata_port = sdev->sdev_target->hostdata;
4550 if (sata_port)
4551 rc = ata_sas_port_init(sata_port->ap);
4552 if (rc)
4553 ipr_slave_destroy(sdev);
4554
4555 LEAVE;
4556 return rc;
4557}
4558
1da177e4
LT		 4559/**
4560 * ipr_slave_alloc - Prepare for commands to a device.
4561 * @sdev: scsi device struct
4562 *
4563 * This function saves a pointer to the resource entry
4564 * in the scsi device struct if the device exists. We
4565 * can then use this pointer in ipr_queuecommand when
4566 * handling new commands.
4567 *
4568 * Return value:
692aebfc 4569 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4570 **/
4571static int ipr_slave_alloc(struct scsi_device *sdev)
4572{
4573 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4574 struct ipr_resource_entry *res;
4575 unsigned long lock_flags;
692aebfc 4576 int rc = -ENXIO;
1da177e4
LT		 4577
4578 sdev->hostdata = NULL;
4579
4580 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4581
35a39691
BK		 4582 res = ipr_find_sdev(sdev);
4583 if (res) {
4584 res->sdev = sdev;
4585 res->add_to_ml = 0;
4586 res->in_erp = 0;
4587 sdev->hostdata = res;
4588 if (!ipr_is_naca_model(res))
4589 res->needs_sync_complete = 1;
4590 rc = 0;
4591 if (ipr_is_gata(res)) {
4592 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4593 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4594 }
4595 }
4596
4597 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4598
692aebfc 4599 return rc;
1da177e4
LT		 4600}
4601
4602/**
4603 * ipr_eh_host_reset - Reset the host adapter
4604 * @scsi_cmd: scsi command struct
4605 *
4606 * Return value:
4607 * SUCCESS / FAILED
4608 **/
df0ae249 4609static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4610{
4611 struct ipr_ioa_cfg *ioa_cfg;
4612 int rc;
4613
4614 ENTER;
4615 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4616
a92fa25c
KSS		 4617 if (!ioa_cfg->in_reset_reload) {
4618 dev_err(&ioa_cfg->pdev->dev,
4619 "Adapter being reset as a result of error recovery.\n");
1da177e4 4620
a92fa25c
KSS		 4621 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4622 ioa_cfg->sdt_state = GET_DUMP;
4623 }
1da177e4
LT		 4624
4625 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4626
4627 LEAVE;
4628 return rc;
4629}
4630
df0ae249
JG		 4631static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4632{
4633 int rc;
4634
4635 spin_lock_irq(cmd->device->host->host_lock);
4636 rc = __ipr_eh_host_reset(cmd);
4637 spin_unlock_irq(cmd->device->host->host_lock);
4638
4639 return rc;
4640}
4641
c6513096
BK		 4642/**
4643 * ipr_device_reset - Reset the device
4644 * @ioa_cfg: ioa config struct
4645 * @res: resource entry struct
4646 *
4647 * This function issues a device reset to the affected device.
4648 * If the device is a SCSI device, a LUN reset will be sent
4649 * to the device first. If that does not work, a target reset
35a39691
BK		 4650 * will be sent. If the device is a SATA device, a PHY reset will
4651 * be sent.
c6513096
BK		 4652 *
4653 * Return value:
4654 * 0 on success / non-zero on failure
4655 **/
4656static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4657 struct ipr_resource_entry *res)
4658{
4659 struct ipr_cmnd *ipr_cmd;
4660 struct ipr_ioarcb *ioarcb;
4661 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4662 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4663 u32 ioasc;
4664
4665 ENTER;
4666 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4667 ioarcb = &ipr_cmd->ioarcb;
4668 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4669
4670 if (ipr_cmd->ioa_cfg->sis64) {
4671 regs = &ipr_cmd->i.ata_ioadl.regs;
4672 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4673 } else
4674 regs = &ioarcb->u.add_data.u.regs;
c6513096 4675
3e7ebdfa 4676 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4677 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4678 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4679 if (ipr_is_gata(res)) {
4680 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4681 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4682 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4683 }
c6513096
BK		 4684
4685 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4686 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
c6513096 4687 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
96d21f00
WB		 4688 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4689 if (ipr_cmd->ioa_cfg->sis64)
4690 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4691 sizeof(struct ipr_ioasa_gata));
4692 else
4693 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4694 sizeof(struct ipr_ioasa_gata));
4695 }
c6513096
BK		 4696
4697 LEAVE;
4698 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4699}
4700
35a39691
BK		 4701/**
4702 * ipr_sata_reset - Reset the SATA port
cc0680a5 4703 * @link: SATA link to reset
35a39691
BK		 4704 * @classes: class of the attached device
4705 *
cc0680a5 4706 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4707 *
4708 * Return value:
4709 * 0 on success / non-zero on failure
4710 **/
cc0680a5 4711static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4712 unsigned long deadline)
35a39691 4713{
cc0680a5 4714 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4715 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4716 struct ipr_resource_entry *res;
4717 unsigned long lock_flags = 0;
4718 int rc = -ENXIO;
4719
4720 ENTER;
4721 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
73d98ff0
BK		 4722 while(ioa_cfg->in_reset_reload) {
4723 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4724 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4725 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4726 }
4727
35a39691
BK		 4728 res = sata_port->res;
4729 if (res) {
4730 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4731 *classes = res->ata_class;
35a39691
BK		 4732 }
4733
4734 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4735 LEAVE;
4736 return rc;
4737}
4738
1da177e4
LT		 4739/**
4740 * ipr_eh_dev_reset - Reset the device
4741 * @scsi_cmd: scsi command struct
4742 *
4743 * This function issues a device reset to the affected device.
4744 * A LUN reset will be sent to the device first. If that does
4745 * not work, a target reset will be sent.
4746 *
4747 * Return value:
4748 * SUCCESS / FAILED
4749 **/
94d0e7b8 4750static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4751{
4752 struct ipr_cmnd *ipr_cmd;
4753 struct ipr_ioa_cfg *ioa_cfg;
4754 struct ipr_resource_entry *res;
35a39691
BK		 4755 struct ata_port *ap;
4756 int rc = 0;
1da177e4
LT		 4757
4758 ENTER;
4759 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4760 res = scsi_cmd->device->hostdata;
4761
eeb88307 4762 if (!res)
1da177e4
LT		 4763 return FAILED;
4764
4765 /*
4766 * If we are currently going through reset/reload, return failed. This will force the
4767 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4768 * reset to complete
4769 */
4770 if (ioa_cfg->in_reset_reload)
4771 return FAILED;
4772 if (ioa_cfg->ioa_is_dead)
4773 return FAILED;
4774
4775 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4776 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
1da177e4
LT		 4777 if (ipr_cmd->scsi_cmd)
4778 ipr_cmd->done = ipr_scsi_eh_done;
24d6f2b5
BK		 4779 if (ipr_cmd->qc)
4780 ipr_cmd->done = ipr_sata_eh_done;
7402ecef
BK		 4781 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4782 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4783 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4784 }
1da177e4
LT		 4785 }
4786 }
4787
4788 res->resetting_device = 1;
fb3ed3cb 4789 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 4790
4791 if (ipr_is_gata(res) && res->sata_port) {
4792 ap = res->sata_port->ap;
4793 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 4794 ata_std_error_handler(ap);
35a39691 4795 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26
BK		 4796
4797 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4798 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5af23d26
BK		 4799 rc = -EIO;
4800 break;
4801 }
4802 }
35a39691
BK		 4803 } else
4804 rc = ipr_device_reset(ioa_cfg, res);
1da177e4
LT		 4805 res->resetting_device = 0;
4806
1da177e4 4807 LEAVE;
c6513096 4808 return (rc ? FAILED : SUCCESS);
1da177e4
LT		 4809}
4810
94d0e7b8
JG		 4811static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4812{
4813 int rc;
4814
4815 spin_lock_irq(cmd->device->host->host_lock);
4816 rc = __ipr_eh_dev_reset(cmd);
4817 spin_unlock_irq(cmd->device->host->host_lock);
4818
4819 return rc;
4820}
4821
1da177e4
LT		 4822/**
4823 * ipr_bus_reset_done - Op done function for bus reset.
4824 * @ipr_cmd: ipr command struct
4825 *
4826 * This function is the op done function for a bus reset
4827 *
4828 * Return value:
4829 * none
4830 **/
4831static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4832{
4833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4834 struct ipr_resource_entry *res;
4835
4836 ENTER;
3e7ebdfa
WB		 4837 if (!ioa_cfg->sis64)
4838 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4839 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4840 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4841 break;
4842 }
1da177e4 4843 }
1da177e4
LT		 4844
4845 /*
4846 * If abort has not completed, indicate the reset has, else call the
4847 * abort's done function to wake the sleeping eh thread
4848 */
4849 if (ipr_cmd->sibling->sibling)
4850 ipr_cmd->sibling->sibling = NULL;
4851 else
4852 ipr_cmd->sibling->done(ipr_cmd->sibling);
4853
4854 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4855 LEAVE;
4856}
4857
4858/**
4859 * ipr_abort_timeout - An abort task has timed out
4860 * @ipr_cmd: ipr command struct
4861 *
4862 * This function handles when an abort task times out. If this
4863 * happens we issue a bus reset since we have resources tied
4864 * up that must be freed before returning to the midlayer.
4865 *
4866 * Return value:
4867 * none
4868 **/
4869static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4870{
4871 struct ipr_cmnd *reset_cmd;
4872 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4873 struct ipr_cmd_pkt *cmd_pkt;
4874 unsigned long lock_flags = 0;
4875
4876 ENTER;
4877 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4878 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4879 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4880 return;
4881 }
4882
fb3ed3cb 4883 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 4884 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4885 ipr_cmd->sibling = reset_cmd;
4886 reset_cmd->sibling = ipr_cmd;
4887 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4888 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4889 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4890 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4891 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4892
4893 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4895 LEAVE;
4896}
4897
4898/**
4899 * ipr_cancel_op - Cancel specified op
4900 * @scsi_cmd: scsi command struct
4901 *
4902 * This function cancels specified op.
4903 *
4904 * Return value:
4905 * SUCCESS / FAILED
4906 **/
4907static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4908{
4909 struct ipr_cmnd *ipr_cmd;
4910 struct ipr_ioa_cfg *ioa_cfg;
4911 struct ipr_resource_entry *res;
4912 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 4913 u32 ioasc, int_reg;
1da177e4
LT		 4914 int op_found = 0;
4915
4916 ENTER;
4917 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4918 res = scsi_cmd->device->hostdata;
4919
8fa728a2
JG		 4920 /* If we are currently going through reset/reload, return failed.
4921 * This will force the mid-layer to call ipr_eh_host_reset,
4922 * which will then go to sleep and wait for the reset to complete
4923 */
4924 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4925 return FAILED;
a92fa25c
KSS		 4926 if (!res)
4927 return FAILED;
4928
4929 /*
4930 * If we are aborting a timed out op, chances are that the timeout was caused
4931 * by a still not detected EEH error. In such cases, reading a register will
4932 * trigger the EEH recovery infrastructure.
4933 */
4934 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4935
4936 if (!ipr_is_gscsi(res))
1da177e4
LT		 4937 return FAILED;
4938
4939 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4940 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4941 ipr_cmd->done = ipr_scsi_eh_done;
4942 op_found = 1;
4943 break;
4944 }
4945 }
4946
4947 if (!op_found)
4948 return SUCCESS;
4949
4950 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 4951 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 4952 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4953 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4954 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4955 ipr_cmd->u.sdev = scsi_cmd->device;
4956
fb3ed3cb
BK		 4957 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4958 scsi_cmd->cmnd[0]);
1da177e4 4959 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 4960 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 4961
4962 /*
4963 * If the abort task timed out and we sent a bus reset, we will get
4964 * one the following responses to the abort
4965 */
4966 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4967 ioasc = 0;
4968 ipr_trace;
4969 }
4970
4971 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
ee0a90fa
BK		 4972 if (!ipr_is_naca_model(res))
4973 res->needs_sync_complete = 1;
1da177e4
LT		 4974
4975 LEAVE;
4976 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4977}
4978
4979/**
4980 * ipr_eh_abort - Abort a single op
4981 * @scsi_cmd: scsi command struct
4982 *
4983 * Return value:
4984 * SUCCESS / FAILED
4985 **/
4986static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4987{
8fa728a2
JG		 4988 unsigned long flags;
4989 int rc;
1da177e4
LT		 4990
4991 ENTER;
1da177e4 4992
8fa728a2
JG		 4993 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4994 rc = ipr_cancel_op(scsi_cmd);
4995 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 4996
4997 LEAVE;
8fa728a2 4998 return rc;
1da177e4
LT		 4999}
5000
5001/**
5002 * ipr_handle_other_interrupt - Handle "other" interrupts
5003 * @ioa_cfg: ioa config struct
634651fa 5004 * @int_reg: interrupt register
1da177e4
LT		 5005 *
5006 * Return value:
5007 * IRQ_NONE / IRQ_HANDLED
5008 **/
634651fa 5009static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5010 u32 int_reg)
1da177e4
LT		 5011{
5012 irqreturn_t rc = IRQ_HANDLED;
7dacb64f
WB		 5013 u32 int_mask_reg;
5014
5015 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5016 int_reg &= ~int_mask_reg;
5017
5018 /* If an interrupt on the adapter did not occur, ignore it.
5019 * Or in the case of SIS 64, check for a stage change interrupt.
5020 */
5021 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5022 if (ioa_cfg->sis64) {
5023 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5024 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5025 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5026
5027 /* clear stage change */
5028 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5029 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5030 list_del(&ioa_cfg->reset_cmd->queue);
5031 del_timer(&ioa_cfg->reset_cmd->timer);
5032 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5033 return IRQ_HANDLED;
5034 }
5035 }
5036
5037 return IRQ_NONE;
5038 }
1da177e4
LT		 5039
5040 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5041 /* Mask the interrupt */
5042 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5043
5044 /* Clear the interrupt */
5045 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5046 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5047
5048 list_del(&ioa_cfg->reset_cmd->queue);
5049 del_timer(&ioa_cfg->reset_cmd->timer);
5050 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f
WB		 5051 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5052 if (ipr_debug && printk_ratelimit())
5053 dev_err(&ioa_cfg->pdev->dev,
5054 "Spurious interrupt detected. 0x%08X\n", int_reg);
5055 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5056 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5057 return IRQ_NONE;
1da177e4
LT		 5058 } else {
5059 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5060 ioa_cfg->ioa_unit_checked = 1;
5061 else
5062 dev_err(&ioa_cfg->pdev->dev,
5063 "Permanent IOA failure. 0x%08X\n", int_reg);
5064
5065 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5066 ioa_cfg->sdt_state = GET_DUMP;
5067
5068 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5069 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5070 }
5071
5072 return rc;
5073}
5074
3feeb89d
WB		 5075/**
5076 * ipr_isr_eh - Interrupt service routine error handler
5077 * @ioa_cfg: ioa config struct
5078 * @msg: message to log
5079 *
5080 * Return value:
5081 * none
5082 **/
5083static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
5084{
5085 ioa_cfg->errors_logged++;
5086 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5087
5088 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5089 ioa_cfg->sdt_state = GET_DUMP;
5090
5091 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5092}
5093
1da177e4
LT		 5094/**
5095 * ipr_isr - Interrupt service routine
5096 * @irq: irq number
5097 * @devp: pointer to ioa config struct
1da177e4
LT		 5098 *
5099 * Return value:
5100 * IRQ_NONE / IRQ_HANDLED
5101 **/
7d12e780 5102static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4
LT		 5103{
5104 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5105 unsigned long lock_flags = 0;
7dacb64f 5106 u32 int_reg = 0;
1da177e4
LT		 5107 u32 ioasc;
5108 u16 cmd_index;
3feeb89d 5109 int num_hrrq = 0;
7dacb64f 5110 int irq_none = 0;
1da177e4
LT		 5111 struct ipr_cmnd *ipr_cmd;
5112 irqreturn_t rc = IRQ_NONE;
5113
5114 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5115
5116 /* If interrupts are disabled, ignore the interrupt */
5117 if (!ioa_cfg->allow_interrupts) {
5118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5119 return IRQ_NONE;
5120 }
5121
1da177e4
LT		 5122 while (1) {
5123 ipr_cmd = NULL;
5124
5125 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5126 ioa_cfg->toggle_bit) {
5127
5128 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5129 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5130
5131 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
3feeb89d 5132 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
1da177e4
LT		 5133 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5134 return IRQ_HANDLED;
5135 }
5136
5137 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5138
96d21f00 5139 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5140
5141 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5142
5143 list_del(&ipr_cmd->queue);
5144 del_timer(&ipr_cmd->timer);
5145 ipr_cmd->done(ipr_cmd);
5146
5147 rc = IRQ_HANDLED;
5148
5149 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5150 ioa_cfg->hrrq_curr++;
5151 } else {
5152 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5153 ioa_cfg->toggle_bit ^= 1u;
5154 }
5155 }
5156
5157 if (ipr_cmd != NULL) {
5158 /* Clear the PCI interrupt */
a5442ba4 5159 num_hrrq = 0;
3feeb89d 5160 do {
214777ba 5161 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5162 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d
WB		 5163 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5164 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5165
7dacb64f
WB		 5166 } else if (rc == IRQ_NONE && irq_none == 0) {
5167 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5168 irq_none++;
a5442ba4
WB		 5169 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5170 int_reg & IPR_PCII_HRRQ_UPDATED) {
5171 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5172 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5173 return IRQ_HANDLED;
1da177e4
LT		 5174 } else
5175 break;
5176 }
5177
5178 if (unlikely(rc == IRQ_NONE))
634651fa 5179 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4
LT		 5180
5181 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5182 return rc;
5183}
5184
a32c055f
WB		 5185/**
5186 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5187 * @ioa_cfg: ioa config struct
5188 * @ipr_cmd: ipr command struct
5189 *
5190 * Return value:
5191 * 0 on success / -1 on failure
5192 **/
5193static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5194 struct ipr_cmnd *ipr_cmd)
5195{
5196 int i, nseg;
5197 struct scatterlist *sg;
5198 u32 length;
5199 u32 ioadl_flags = 0;
5200 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5201 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5202 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5203
5204 length = scsi_bufflen(scsi_cmd);
5205 if (!length)
5206 return 0;
5207
5208 nseg = scsi_dma_map(scsi_cmd);
5209 if (nseg < 0) {
51f52a47
AB		 5210 if (printk_ratelimit())
5211 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
a32c055f
WB		 5212 return -1;
5213 }
5214
5215 ipr_cmd->dma_use_sg = nseg;
5216
438b0331 5217 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5218 ioarcb->ioadl_len =
5219 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5220
a32c055f
WB		 5221 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5222 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5223 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5224 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5225 ioadl_flags = IPR_IOADL_FLAGS_READ;
5226
5227 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5228 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5229 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5230 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5231 }
5232
5233 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5234 return 0;
5235}
5236
1da177e4
LT		 5237/**
5238 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5239 * @ioa_cfg: ioa config struct
5240 * @ipr_cmd: ipr command struct
5241 *
5242 * Return value:
5243 * 0 on success / -1 on failure
5244 **/
5245static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5246 struct ipr_cmnd *ipr_cmd)
5247{
63015bc9
FT		 5248 int i, nseg;
5249 struct scatterlist *sg;
1da177e4
LT		 5250 u32 length;
5251 u32 ioadl_flags = 0;
5252 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5253 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5254 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5255
63015bc9
FT		 5256 length = scsi_bufflen(scsi_cmd);
5257 if (!length)
1da177e4
LT		 5258 return 0;
5259
63015bc9
FT		 5260 nseg = scsi_dma_map(scsi_cmd);
5261 if (nseg < 0) {
5262 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5263 return -1;
5264 }
51b1c7e1 5265
63015bc9
FT		 5266 ipr_cmd->dma_use_sg = nseg;
5267
5268 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5269 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5270 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5271 ioarcb->data_transfer_length = cpu_to_be32(length);
5272 ioarcb->ioadl_len =
63015bc9
FT		 5273 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5274 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5275 ioadl_flags = IPR_IOADL_FLAGS_READ;
5276 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5277 ioarcb->read_ioadl_len =
5278 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5279 }
1da177e4 5280
a32c055f
WB		 5281 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5282 ioadl = ioarcb->u.add_data.u.ioadl;
5283 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5284 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5285 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5286 }
1da177e4 5287
63015bc9
FT		 5288 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5289 ioadl[i].flags_and_data_len =
5290 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5291 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5292 }
5293
63015bc9
FT		 5294 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5295 return 0;
1da177e4
LT		 5296}
5297
5298/**
5299 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5300 * @scsi_cmd: scsi command struct
5301 *
5302 * Return value:
5303 * task attributes
5304 **/
5305static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5306{
5307 u8 tag[2];
5308 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5309
5310 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5311 switch (tag[0]) {
5312 case MSG_SIMPLE_TAG:
5313 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5314 break;
5315 case MSG_HEAD_TAG:
5316 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5317 break;
5318 case MSG_ORDERED_TAG:
5319 rc = IPR_FLAGS_LO_ORDERED_TASK;
5320 break;
5321 };
5322 }
5323
5324 return rc;
5325}
5326
5327/**
5328 * ipr_erp_done - Process completion of ERP for a device
5329 * @ipr_cmd: ipr command struct
5330 *
5331 * This function copies the sense buffer into the scsi_cmd
5332 * struct and pushes the scsi_done function.
5333 *
5334 * Return value:
5335 * nothing
5336 **/
5337static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5338{
5339 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5340 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5341 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 5342 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5343
5344 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5345 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5346 scmd_printk(KERN_ERR, scsi_cmd,
5347 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5348 } else {
5349 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5350 SCSI_SENSE_BUFFERSIZE);
5351 }
5352
5353 if (res) {
ee0a90fa
BK		 5354 if (!ipr_is_naca_model(res))
5355 res->needs_sync_complete = 1;
1da177e4
LT		 5356 res->in_erp = 0;
5357 }
63015bc9 5358 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5359 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5360 scsi_cmd->scsi_done(scsi_cmd);
5361}
5362
5363/**
5364 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5365 * @ipr_cmd: ipr command struct
5366 *
5367 * Return value:
5368 * none
5369 **/
5370static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5371{
51b1c7e1 5372 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5373 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5374 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5375
5376 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5377 ioarcb->data_transfer_length = 0;
1da177e4 5378 ioarcb->read_data_transfer_length = 0;
a32c055f 5379 ioarcb->ioadl_len = 0;
1da177e4 5380 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5381 ioasa->hdr.ioasc = 0;
5382 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5383
5384 if (ipr_cmd->ioa_cfg->sis64)
5385 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5386 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5387 else {
5388 ioarcb->write_ioadl_addr =
5389 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5390 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5391 }
1da177e4
LT		 5392}
5393
5394/**
5395 * ipr_erp_request_sense - Send request sense to a device
5396 * @ipr_cmd: ipr command struct
5397 *
5398 * This function sends a request sense to a device as a result
5399 * of a check condition.
5400 *
5401 * Return value:
5402 * nothing
5403 **/
5404static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5405{
5406 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5407 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5408
5409 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5410 ipr_erp_done(ipr_cmd);
5411 return;
5412 }
5413
5414 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5415
5416 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5417 cmd_pkt->cdb[0] = REQUEST_SENSE;
5418 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5419 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5420 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5421 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5422
a32c055f
WB		 5423 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5424 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5425
5426 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5427 IPR_REQUEST_SENSE_TIMEOUT * 2);
5428}
5429
5430/**
5431 * ipr_erp_cancel_all - Send cancel all to a device
5432 * @ipr_cmd: ipr command struct
5433 *
5434 * This function sends a cancel all to a device to clear the
5435 * queue. If we are running TCQ on the device, QERR is set to 1,
5436 * which means all outstanding ops have been dropped on the floor.
5437 * Cancel all will return them to us.
5438 *
5439 * Return value:
5440 * nothing
5441 **/
5442static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5443{
5444 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5445 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5446 struct ipr_cmd_pkt *cmd_pkt;
5447
5448 res->in_erp = 1;
5449
5450 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5451
5452 if (!scsi_get_tag_type(scsi_cmd->device)) {
5453 ipr_erp_request_sense(ipr_cmd);
5454 return;
5455 }
5456
5457 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5458 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5459 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5460
5461 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5462 IPR_CANCEL_ALL_TIMEOUT);
5463}
5464
5465/**
5466 * ipr_dump_ioasa - Dump contents of IOASA
5467 * @ioa_cfg: ioa config struct
5468 * @ipr_cmd: ipr command struct
fe964d0a 5469 * @res: resource entry struct
1da177e4
LT		 5470 *
5471 * This function is invoked by the interrupt handler when ops
5472 * fail. It will log the IOASA if appropriate. Only called
5473 * for GPDD ops.
5474 *
5475 * Return value:
5476 * none
5477 **/
5478static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5479 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5480{
5481 int i;
5482 u16 data_len;
b0692dd4 5483 u32 ioasc, fd_ioasc;
96d21f00 5484 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5485 __be32 *ioasa_data = (__be32 *)ioasa;
5486 int error_index;
5487
96d21f00
WB		 5488 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5489 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5490
5491 if (0 == ioasc)
5492 return;
5493
5494 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5495 return;
5496
b0692dd4
BK		 5497 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5498 error_index = ipr_get_error(fd_ioasc);
5499 else
5500 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5501
5502 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5503 /* Don't log an error if the IOA already logged one */
96d21f00 5504 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5505 return;
5506
cc9bd5d4
BK		 5507 if (!ipr_is_gscsi(res))
5508 return;
5509
1da177e4
LT		 5510 if (ipr_error_table[error_index].log_ioasa == 0)
5511 return;
5512 }
5513
fe964d0a 5514 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5515
96d21f00
WB		 5516 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5517 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5518 data_len = sizeof(struct ipr_ioasa64);
5519 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5520 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5521
5522 ipr_err("IOASA Dump:\n");
5523
5524 for (i = 0; i < data_len / 4; i += 4) {
5525 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5526 be32_to_cpu(ioasa_data[i]),
5527 be32_to_cpu(ioasa_data[i+1]),
5528 be32_to_cpu(ioasa_data[i+2]),
5529 be32_to_cpu(ioasa_data[i+3]));
5530 }
5531}
5532
5533/**
5534 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5535 * @ioasa: IOASA
5536 * @sense_buf: sense data buffer
5537 *
5538 * Return value:
5539 * none
5540 **/
5541static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5542{
5543 u32 failing_lba;
5544 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5545 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5546 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5547 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5548
5549 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5550
5551 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5552 return;
5553
5554 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5555
5556 if (ipr_is_vset_device(res) &&
5557 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5558 ioasa->u.vset.failing_lba_hi != 0) {
5559 sense_buf[0] = 0x72;
5560 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5561 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5562 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5563
5564 sense_buf[7] = 12;
5565 sense_buf[8] = 0;
5566 sense_buf[9] = 0x0A;
5567 sense_buf[10] = 0x80;
5568
5569 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5570
5571 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5572 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5573 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5574 sense_buf[15] = failing_lba & 0x000000ff;
5575
5576 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5577
5578 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5579 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5580 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5581 sense_buf[19] = failing_lba & 0x000000ff;
5582 } else {
5583 sense_buf[0] = 0x70;
5584 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5585 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5586 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5587
5588 /* Illegal request */
5589 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5590 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5591 sense_buf[7] = 10; /* additional length */
5592
5593 /* IOARCB was in error */
5594 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5595 sense_buf[15] = 0xC0;
5596 else /* Parameter data was invalid */
5597 sense_buf[15] = 0x80;
5598
5599 sense_buf[16] =
5600 ((IPR_FIELD_POINTER_MASK &
96d21f00 5601 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5602 sense_buf[17] =
5603 (IPR_FIELD_POINTER_MASK &
96d21f00 5604 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5605 } else {
5606 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5607 if (ipr_is_vset_device(res))
5608 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5609 else
5610 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5611
5612 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5613 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5614 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5615 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5616 sense_buf[6] = failing_lba & 0x000000ff;
5617 }
5618
5619 sense_buf[7] = 6; /* additional length */
5620 }
5621 }
5622}
5623
ee0a90fa
BK		 5624/**
5625 * ipr_get_autosense - Copy autosense data to sense buffer
5626 * @ipr_cmd: ipr command struct
5627 *
5628 * This function copies the autosense buffer to the buffer
5629 * in the scsi_cmd, if there is autosense available.
5630 *
5631 * Return value:
5632 * 1 if autosense was available / 0 if not
5633 **/
5634static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5635{
96d21f00
WB		 5636 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5637 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 5638
96d21f00 5639 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 5640 return 0;
5641
96d21f00
WB		 5642 if (ipr_cmd->ioa_cfg->sis64)
5643 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5644 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5645 SCSI_SENSE_BUFFERSIZE));
5646 else
5647 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5648 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5649 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 5650 return 1;
5651}
5652
1da177e4
LT		 5653/**
5654 * ipr_erp_start - Process an error response for a SCSI op
5655 * @ioa_cfg: ioa config struct
5656 * @ipr_cmd: ipr command struct
5657 *
5658 * This function determines whether or not to initiate ERP
5659 * on the affected device.
5660 *
5661 * Return value:
5662 * nothing
5663 **/
5664static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5665 struct ipr_cmnd *ipr_cmd)
5666{
5667 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5668 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5669 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 5670 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5671
5672 if (!res) {
5673 ipr_scsi_eh_done(ipr_cmd);
5674 return;
5675 }
5676
8a048994 5677 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 5678 ipr_gen_sense(ipr_cmd);
5679
cc9bd5d4
BK		 5680 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5681
8a048994 5682 switch (masked_ioasc) {
1da177e4 5683 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 5684 if (ipr_is_naca_model(res))
5685 scsi_cmd->result |= (DID_ABORT << 16);
5686 else
5687 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 5688 break;
5689 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 5690 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 5691 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5692 break;
5693 case IPR_IOASC_HW_SEL_TIMEOUT:
5694 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 5695 if (!ipr_is_naca_model(res))
5696 res->needs_sync_complete = 1;
1da177e4
LT		 5697 break;
5698 case IPR_IOASC_SYNC_REQUIRED:
5699 if (!res->in_erp)
5700 res->needs_sync_complete = 1;
5701 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5702 break;
5703 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 5704 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 5705 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5706 break;
5707 case IPR_IOASC_BUS_WAS_RESET:
5708 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5709 /*
5710 * Report the bus reset and ask for a retry. The device
5711 * will give CC/UA the next command.
5712 */
5713 if (!res->resetting_device)
5714 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5715 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 5716 if (!ipr_is_naca_model(res))
5717 res->needs_sync_complete = 1;
1da177e4
LT		 5718 break;
5719 case IPR_IOASC_HW_DEV_BUS_STATUS:
5720 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5721 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 5722 if (!ipr_get_autosense(ipr_cmd)) {
5723 if (!ipr_is_naca_model(res)) {
5724 ipr_erp_cancel_all(ipr_cmd);
5725 return;
5726 }
5727 }
1da177e4 5728 }
ee0a90fa
BK		 5729 if (!ipr_is_naca_model(res))
5730 res->needs_sync_complete = 1;
1da177e4
LT		 5731 break;
5732 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5733 break;
5734 default:
5b7304fb
BK		 5735 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5736 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 5737 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 5738 res->needs_sync_complete = 1;
5739 break;
5740 }
5741
63015bc9 5742 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5743 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5744 scsi_cmd->scsi_done(scsi_cmd);
5745}
5746
5747/**
5748 * ipr_scsi_done - mid-layer done function
5749 * @ipr_cmd: ipr command struct
5750 *
5751 * This function is invoked by the interrupt handler for
5752 * ops generated by the SCSI mid-layer
5753 *
5754 * Return value:
5755 * none
5756 **/
5757static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5758{
5759 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5760 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 5761 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4 5762
96d21f00 5763 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 5764
5765 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
63015bc9 5766 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5767 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5768 scsi_cmd->scsi_done(scsi_cmd);
5769 } else
5770 ipr_erp_start(ioa_cfg, ipr_cmd);
5771}
5772
1da177e4
LT		 5773/**
5774 * ipr_queuecommand - Queue a mid-layer request
5775 * @scsi_cmd: scsi command struct
5776 * @done: done function
5777 *
5778 * This function queues a request generated by the mid-layer.
5779 *
5780 * Return value:
5781 * 0 on success
5782 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5783 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5784 **/
f281233d 5785static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
1da177e4
LT		 5786 void (*done) (struct scsi_cmnd *))
5787{
5788 struct ipr_ioa_cfg *ioa_cfg;
5789 struct ipr_resource_entry *res;
5790 struct ipr_ioarcb *ioarcb;
5791 struct ipr_cmnd *ipr_cmd;
5792 int rc = 0;
5793
5794 scsi_cmd->scsi_done = done;
5795 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5796 res = scsi_cmd->device->hostdata;
5797 scsi_cmd->result = (DID_OK << 16);
5798
5799 /*
5800 * We are currently blocking all devices due to a host reset
5801 * We have told the host to stop giving us new requests, but
5802 * ERP ops don't count. FIXME
5803 */
5804 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5805 return SCSI_MLQUEUE_HOST_BUSY;
5806
5807 /*
5808 * FIXME - Create scsi_set_host_offline interface
5809 * and the ioa_is_dead check can be removed
5810 */
5811 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5812 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5813 scsi_cmd->result = (DID_NO_CONNECT << 16);
5814 scsi_cmd->scsi_done(scsi_cmd);
5815 return 0;
5816 }
5817
35a39691 5818 if (ipr_is_gata(res) && res->sata_port)
b27dcfb0 5819 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
35a39691 5820
1da177e4
LT		 5821 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5822 ioarcb = &ipr_cmd->ioarcb;
5823 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5824
5825 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5826 ipr_cmd->scsi_cmd = scsi_cmd;
3e7ebdfa 5827 ioarcb->res_handle = res->res_handle;
1da177e4 5828 ipr_cmd->done = ipr_scsi_done;
3e7ebdfa 5829 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
1da177e4
LT		 5830
5831 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5832 if (scsi_cmd->underflow == 0)
5833 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5834
5835 if (res->needs_sync_complete) {
5836 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5837 res->needs_sync_complete = 0;
5838 }
5839
5840 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
ab6c10b1
WB		 5841 if (ipr_is_gscsi(res))
5842 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
1da177e4
LT		 5843 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5844 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5845 }
5846
5847 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5848 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5849 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5850
a32c055f
WB		 5851 if (likely(rc == 0)) {
5852 if (ioa_cfg->sis64)
5853 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5854 else
5855 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5856 }
1da177e4
LT		 5857
5858 if (likely(rc == 0)) {
5859 mb();
a32c055f 5860 ipr_send_command(ipr_cmd);
1da177e4
LT		 5861 } else {
5862 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5863 return SCSI_MLQUEUE_HOST_BUSY;
5864 }
5865
5866 return 0;
5867}
5868
f281233d
JG		 5869static DEF_SCSI_QCMD(ipr_queuecommand)
5870
35a39691
BK		 5871/**
5872 * ipr_ioctl - IOCTL handler
5873 * @sdev: scsi device struct
5874 * @cmd: IOCTL cmd
5875 * @arg: IOCTL arg
5876 *
5877 * Return value:
5878 * 0 on success / other on failure
5879 **/
bd705f2d 5880static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 5881{
5882 struct ipr_resource_entry *res;
5883
5884 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 5885 if (res && ipr_is_gata(res)) {
5886 if (cmd == HDIO_GET_IDENTITY)
5887 return -ENOTTY;
94be9a58 5888 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 5889 }
35a39691
BK		 5890
5891 return -EINVAL;
5892}
5893
1da177e4
LT		 5894/**
5895 * ipr_info - Get information about the card/driver
5896 * @scsi_host: scsi host struct
5897 *
5898 * Return value:
5899 * pointer to buffer with description string
5900 **/
5901static const char * ipr_ioa_info(struct Scsi_Host *host)
5902{
5903 static char buffer[512];
5904 struct ipr_ioa_cfg *ioa_cfg;
5905 unsigned long lock_flags = 0;
5906
5907 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5908
5909 spin_lock_irqsave(host->host_lock, lock_flags);
5910 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5911 spin_unlock_irqrestore(host->host_lock, lock_flags);
5912
5913 return buffer;
5914}
5915
5916static struct scsi_host_template driver_template = {
5917 .module = THIS_MODULE,
5918 .name = "IPR",
5919 .info = ipr_ioa_info,
35a39691 5920 .ioctl = ipr_ioctl,
1da177e4
LT		 5921 .queuecommand = ipr_queuecommand,
5922 .eh_abort_handler = ipr_eh_abort,
5923 .eh_device_reset_handler = ipr_eh_dev_reset,
5924 .eh_host_reset_handler = ipr_eh_host_reset,
5925 .slave_alloc = ipr_slave_alloc,
5926 .slave_configure = ipr_slave_configure,
5927 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 5928 .target_alloc = ipr_target_alloc,
5929 .target_destroy = ipr_target_destroy,
1da177e4
LT		 5930 .change_queue_depth = ipr_change_queue_depth,
5931 .change_queue_type = ipr_change_queue_type,
5932 .bios_param = ipr_biosparam,
5933 .can_queue = IPR_MAX_COMMANDS,
5934 .this_id = -1,
5935 .sg_tablesize = IPR_MAX_SGLIST,
5936 .max_sectors = IPR_IOA_MAX_SECTORS,
5937 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5938 .use_clustering = ENABLE_CLUSTERING,
5939 .shost_attrs = ipr_ioa_attrs,
5940 .sdev_attrs = ipr_dev_attrs,
5941 .proc_name = IPR_NAME
5942};
5943
35a39691
BK		 5944/**
5945 * ipr_ata_phy_reset - libata phy_reset handler
5946 * @ap: ata port to reset
5947 *
5948 **/
5949static void ipr_ata_phy_reset(struct ata_port *ap)
5950{
5951 unsigned long flags;
5952 struct ipr_sata_port *sata_port = ap->private_data;
5953 struct ipr_resource_entry *res = sata_port->res;
5954 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5955 int rc;
5956
5957 ENTER;
5958 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5959 while(ioa_cfg->in_reset_reload) {
5960 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5961 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5962 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5963 }
5964
5965 if (!ioa_cfg->allow_cmds)
5966 goto out_unlock;
5967
5968 rc = ipr_device_reset(ioa_cfg, res);
5969
5970 if (rc) {
3e4ec344 5971 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5972 goto out_unlock;
5973 }
5974
3e7ebdfa
WB		 5975 ap->link.device[0].class = res->ata_class;
5976 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 5977 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5978
5979out_unlock:
5980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5981 LEAVE;
5982}
5983
5984/**
5985 * ipr_ata_post_internal - Cleanup after an internal command
5986 * @qc: ATA queued command
5987 *
5988 * Return value:
5989 * none
5990 **/
5991static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5992{
5993 struct ipr_sata_port *sata_port = qc->ap->private_data;
5994 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5995 struct ipr_cmnd *ipr_cmd;
5996 unsigned long flags;
5997
5998 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
73d98ff0
BK		 5999 while(ioa_cfg->in_reset_reload) {
6000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6001 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6002 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6003 }
6004
35a39691
BK		 6005 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
6006 if (ipr_cmd->qc == qc) {
6007 ipr_device_reset(ioa_cfg, sata_port->res);
6008 break;
6009 }
6010 }
6011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6012}
6013
35a39691
BK		 6014/**
6015 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6016 * @regs: destination
6017 * @tf: source ATA taskfile
6018 *
6019 * Return value:
6020 * none
6021 **/
6022static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6023 struct ata_taskfile *tf)
6024{
6025 regs->feature = tf->feature;
6026 regs->nsect = tf->nsect;
6027 regs->lbal = tf->lbal;
6028 regs->lbam = tf->lbam;
6029 regs->lbah = tf->lbah;
6030 regs->device = tf->device;
6031 regs->command = tf->command;
6032 regs->hob_feature = tf->hob_feature;
6033 regs->hob_nsect = tf->hob_nsect;
6034 regs->hob_lbal = tf->hob_lbal;
6035 regs->hob_lbam = tf->hob_lbam;
6036 regs->hob_lbah = tf->hob_lbah;
6037 regs->ctl = tf->ctl;
6038}
6039
6040/**
6041 * ipr_sata_done - done function for SATA commands
6042 * @ipr_cmd: ipr command struct
6043 *
6044 * This function is invoked by the interrupt handler for
6045 * ops generated by the SCSI mid-layer to SATA devices
6046 *
6047 * Return value:
6048 * none
6049 **/
6050static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6051{
6052 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6053 struct ata_queued_cmd *qc = ipr_cmd->qc;
6054 struct ipr_sata_port *sata_port = qc->ap->private_data;
6055 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6056 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6057
96d21f00
WB		 6058 if (ipr_cmd->ioa_cfg->sis64)
6059 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6060 sizeof(struct ipr_ioasa_gata));
6061 else
6062 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6063 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6064 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6065
96d21f00 6066 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6067 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6068
6069 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6070 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6071 else
96d21f00 6072 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
35a39691
BK		 6073 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6074 ata_qc_complete(qc);
6075}
6076
a32c055f
WB		 6077/**
6078 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6079 * @ipr_cmd: ipr command struct
6080 * @qc: ATA queued command
6081 *
6082 **/
6083static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6084 struct ata_queued_cmd *qc)
6085{
6086 u32 ioadl_flags = 0;
6087 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6088 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6089 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6090 int len = qc->nbytes;
6091 struct scatterlist *sg;
6092 unsigned int si;
6093 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6094
6095 if (len == 0)
6096 return;
6097
6098 if (qc->dma_dir == DMA_TO_DEVICE) {
6099 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6100 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6101 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6102 ioadl_flags = IPR_IOADL_FLAGS_READ;
6103
6104 ioarcb->data_transfer_length = cpu_to_be32(len);
6105 ioarcb->ioadl_len =
6106 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6107 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6108 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6109
6110 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6111 ioadl64->flags = cpu_to_be32(ioadl_flags);
6112 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6113 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6114
6115 last_ioadl64 = ioadl64;
6116 ioadl64++;
6117 }
6118
6119 if (likely(last_ioadl64))
6120 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6121}
6122
35a39691
BK		 6123/**
6124 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6125 * @ipr_cmd: ipr command struct
6126 * @qc: ATA queued command
6127 *
6128 **/
6129static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6130 struct ata_queued_cmd *qc)
6131{
6132 u32 ioadl_flags = 0;
6133 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6134 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6135 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6136 int len = qc->nbytes;
35a39691 6137 struct scatterlist *sg;
ff2aeb1e 6138 unsigned int si;
35a39691
BK		 6139
6140 if (len == 0)
6141 return;
6142
6143 if (qc->dma_dir == DMA_TO_DEVICE) {
6144 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6145 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6146 ioarcb->data_transfer_length = cpu_to_be32(len);
6147 ioarcb->ioadl_len =
35a39691
BK		 6148 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6149 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6150 ioadl_flags = IPR_IOADL_FLAGS_READ;
6151 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6152 ioarcb->read_ioadl_len =
6153 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6154 }
6155
ff2aeb1e 6156 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6157 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6158 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6159
6160 last_ioadl = ioadl;
6161 ioadl++;
35a39691 6162 }
3be6cbd7
JG		 6163
6164 if (likely(last_ioadl))
6165 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6166}
6167
6168/**
6169 * ipr_qc_issue - Issue a SATA qc to a device
6170 * @qc: queued command
6171 *
6172 * Return value:
6173 * 0 if success
6174 **/
6175static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6176{
6177 struct ata_port *ap = qc->ap;
6178 struct ipr_sata_port *sata_port = ap->private_data;
6179 struct ipr_resource_entry *res = sata_port->res;
6180 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6181 struct ipr_cmnd *ipr_cmd;
6182 struct ipr_ioarcb *ioarcb;
6183 struct ipr_ioarcb_ata_regs *regs;
6184
6185 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
0feeed82 6186 return AC_ERR_SYSTEM;
35a39691
BK		 6187
6188 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6189 ioarcb = &ipr_cmd->ioarcb;
35a39691 6190
a32c055f
WB		 6191 if (ioa_cfg->sis64) {
6192 regs = &ipr_cmd->i.ata_ioadl.regs;
6193 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6194 } else
6195 regs = &ioarcb->u.add_data.u.regs;
6196
6197 memset(regs, 0, sizeof(*regs));
6198 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691
BK		 6199
6200 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6201 ipr_cmd->qc = qc;
6202 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6203 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6204 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6205 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6206 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6207 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6208
a32c055f
WB		 6209 if (ioa_cfg->sis64)
6210 ipr_build_ata_ioadl64(ipr_cmd, qc);
6211 else
6212 ipr_build_ata_ioadl(ipr_cmd, qc);
6213
35a39691
BK		 6214 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6215 ipr_copy_sata_tf(regs, &qc->tf);
6216 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6217 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6218
6219 switch (qc->tf.protocol) {
6220 case ATA_PROT_NODATA:
6221 case ATA_PROT_PIO:
6222 break;
6223
6224 case ATA_PROT_DMA:
6225 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6226 break;
6227
0dc36888
TH		 6228 case ATAPI_PROT_PIO:
6229 case ATAPI_PROT_NODATA:
35a39691
BK		 6230 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6231 break;
6232
0dc36888 6233 case ATAPI_PROT_DMA:
35a39691
BK		 6234 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6235 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6236 break;
6237
6238 default:
6239 WARN_ON(1);
0feeed82 6240 return AC_ERR_INVALID;
35a39691
BK		 6241 }
6242
6243 mb();
a32c055f
WB		 6244
6245 ipr_send_command(ipr_cmd);
6246
35a39691
BK		 6247 return 0;
6248}
6249
4c9bf4e7
TH		 6250/**
6251 * ipr_qc_fill_rtf - Read result TF
6252 * @qc: ATA queued command
6253 *
6254 * Return value:
6255 * true
6256 **/
6257static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6258{
6259 struct ipr_sata_port *sata_port = qc->ap->private_data;
6260 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6261 struct ata_taskfile *tf = &qc->result_tf;
6262
6263 tf->feature = g->error;
6264 tf->nsect = g->nsect;
6265 tf->lbal = g->lbal;
6266 tf->lbam = g->lbam;
6267 tf->lbah = g->lbah;
6268 tf->device = g->device;
6269 tf->command = g->status;
6270 tf->hob_nsect = g->hob_nsect;
6271 tf->hob_lbal = g->hob_lbal;
6272 tf->hob_lbam = g->hob_lbam;
6273 tf->hob_lbah = g->hob_lbah;
6274 tf->ctl = g->alt_status;
6275
6276 return true;
6277}
6278
35a39691 6279static struct ata_port_operations ipr_sata_ops = {
35a39691 6280 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6281 .hardreset = ipr_sata_reset,
35a39691 6282 .post_internal_cmd = ipr_ata_post_internal,
35a39691
BK		 6283 .qc_prep = ata_noop_qc_prep,
6284 .qc_issue = ipr_qc_issue,
4c9bf4e7 6285 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6286 .port_start = ata_sas_port_start,
6287 .port_stop = ata_sas_port_stop
6288};
6289
6290static struct ata_port_info sata_port_info = {
9cbe056f 6291 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
0f2e0330
SS		 6292 .pio_mask = ATA_PIO4_ONLY,
6293 .mwdma_mask = ATA_MWDMA2,
6294 .udma_mask = ATA_UDMA6,
35a39691
BK		 6295 .port_ops = &ipr_sata_ops
6296};
6297
1da177e4
LT		 6298#ifdef CONFIG_PPC_PSERIES
6299static const u16 ipr_blocked_processors[] = {
6300 PV_NORTHSTAR,
6301 PV_PULSAR,
6302 PV_POWER4,
6303 PV_ICESTAR,
6304 PV_SSTAR,
6305 PV_POWER4p,
6306 PV_630,
6307 PV_630p
6308};
6309
6310/**
6311 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6312 * @ioa_cfg: ioa cfg struct
6313 *
6314 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6315 * certain pSeries hardware. This function determines if the given
6316 * adapter is in one of these confgurations or not.
6317 *
6318 * Return value:
6319 * 1 if adapter is not supported / 0 if adapter is supported
6320 **/
6321static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6322{
1da177e4
LT		 6323 int i;
6324
44c10138
AK		 6325 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6326 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6327 if (__is_processor(ipr_blocked_processors[i]))
6328 return 1;
1da177e4
LT		 6329 }
6330 }
6331 return 0;
6332}
6333#else
6334#define ipr_invalid_adapter(ioa_cfg) 0
6335#endif
6336
6337/**
6338 * ipr_ioa_bringdown_done - IOA bring down completion.
6339 * @ipr_cmd: ipr command struct
6340 *
6341 * This function processes the completion of an adapter bring down.
6342 * It wakes any reset sleepers.
6343 *
6344 * Return value:
6345 * IPR_RC_JOB_RETURN
6346 **/
6347static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6348{
6349 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6350
6351 ENTER;
6352 ioa_cfg->in_reset_reload = 0;
6353 ioa_cfg->reset_retries = 0;
6354 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6355 wake_up_all(&ioa_cfg->reset_wait_q);
6356
6357 spin_unlock_irq(ioa_cfg->host->host_lock);
6358 scsi_unblock_requests(ioa_cfg->host);
6359 spin_lock_irq(ioa_cfg->host->host_lock);
6360 LEAVE;
6361
6362 return IPR_RC_JOB_RETURN;
6363}
6364
6365/**
6366 * ipr_ioa_reset_done - IOA reset completion.
6367 * @ipr_cmd: ipr command struct
6368 *
6369 * This function processes the completion of an adapter reset.
6370 * It schedules any necessary mid-layer add/removes and
6371 * wakes any reset sleepers.
6372 *
6373 * Return value:
6374 * IPR_RC_JOB_RETURN
6375 **/
6376static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6377{
6378 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6379 struct ipr_resource_entry *res;
6380 struct ipr_hostrcb *hostrcb, *temp;
6381 int i = 0;
6382
6383 ENTER;
6384 ioa_cfg->in_reset_reload = 0;
6385 ioa_cfg->allow_cmds = 1;
6386 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6387 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6388
6389 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6390 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6391 ipr_trace;
6392 break;
6393 }
6394 }
6395 schedule_work(&ioa_cfg->work_q);
6396
6397 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6398 list_del(&hostrcb->queue);
6399 if (i++ < IPR_NUM_LOG_HCAMS)
6400 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6401 else
6402 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6403 }
6404
6bb04170 6405 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6406 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6407
6408 ioa_cfg->reset_retries = 0;
6409 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6410 wake_up_all(&ioa_cfg->reset_wait_q);
6411
30237853 6412 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6413 scsi_unblock_requests(ioa_cfg->host);
30237853 6414 spin_lock(ioa_cfg->host->host_lock);
1da177e4
LT		 6415
6416 if (!ioa_cfg->allow_cmds)
6417 scsi_block_requests(ioa_cfg->host);
6418
6419 LEAVE;
6420 return IPR_RC_JOB_RETURN;
6421}
6422
6423/**
6424 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6425 * @supported_dev: supported device struct
6426 * @vpids: vendor product id struct
6427 *
6428 * Return value:
6429 * none
6430 **/
6431static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6432 struct ipr_std_inq_vpids *vpids)
6433{
6434 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6435 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6436 supported_dev->num_records = 1;
6437 supported_dev->data_length =
6438 cpu_to_be16(sizeof(struct ipr_supported_device));
6439 supported_dev->reserved = 0;
6440}
6441
6442/**
6443 * ipr_set_supported_devs - Send Set Supported Devices for a device
6444 * @ipr_cmd: ipr command struct
6445 *
a32c055f 6446 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6447 *
6448 * Return value:
6449 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6450 **/
6451static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6452{
6453 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6454 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6455 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6456 struct ipr_resource_entry *res = ipr_cmd->u.res;
6457
6458 ipr_cmd->job_step = ipr_ioa_reset_done;
6459
6460 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6461 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6462 continue;
6463
6464 ipr_cmd->u.res = res;
3e7ebdfa 6465 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6466
6467 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6468 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6469 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6470
6471 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6472 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6473 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6474 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6475
a32c055f
WB		 6476 ipr_init_ioadl(ipr_cmd,
6477 ioa_cfg->vpd_cbs_dma +
6478 offsetof(struct ipr_misc_cbs, supp_dev),
6479 sizeof(struct ipr_supported_device),
6480 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6481
6482 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6483 IPR_SET_SUP_DEVICE_TIMEOUT);
6484
3e7ebdfa
WB		 6485 if (!ioa_cfg->sis64)
6486 ipr_cmd->job_step = ipr_set_supported_devs;
1da177e4
LT		 6487 return IPR_RC_JOB_RETURN;
6488 }
6489
6490 return IPR_RC_JOB_CONTINUE;
6491}
6492
6493/**
6494 * ipr_get_mode_page - Locate specified mode page
6495 * @mode_pages: mode page buffer
6496 * @page_code: page code to find
6497 * @len: minimum required length for mode page
6498 *
6499 * Return value:
6500 * pointer to mode page / NULL on failure
6501 **/
6502static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6503 u32 page_code, u32 len)
6504{
6505 struct ipr_mode_page_hdr *mode_hdr;
6506 u32 page_length;
6507 u32 length;
6508
6509 if (!mode_pages || (mode_pages->hdr.length == 0))
6510 return NULL;
6511
6512 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6513 mode_hdr = (struct ipr_mode_page_hdr *)
6514 (mode_pages->data + mode_pages->hdr.block_desc_len);
6515
6516 while (length) {
6517 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6518 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6519 return mode_hdr;
6520 break;
6521 } else {
6522 page_length = (sizeof(struct ipr_mode_page_hdr) +
6523 mode_hdr->page_length);
6524 length -= page_length;
6525 mode_hdr = (struct ipr_mode_page_hdr *)
6526 ((unsigned long)mode_hdr + page_length);
6527 }
6528 }
6529 return NULL;
6530}
6531
6532/**
6533 * ipr_check_term_power - Check for term power errors
6534 * @ioa_cfg: ioa config struct
6535 * @mode_pages: IOAFP mode pages buffer
6536 *
6537 * Check the IOAFP's mode page 28 for term power errors
6538 *
6539 * Return value:
6540 * nothing
6541 **/
6542static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6543 struct ipr_mode_pages *mode_pages)
6544{
6545 int i;
6546 int entry_length;
6547 struct ipr_dev_bus_entry *bus;
6548 struct ipr_mode_page28 *mode_page;
6549
6550 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6551 sizeof(struct ipr_mode_page28));
6552
6553 entry_length = mode_page->entry_length;
6554
6555 bus = mode_page->bus;
6556
6557 for (i = 0; i < mode_page->num_entries; i++) {
6558 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6559 dev_err(&ioa_cfg->pdev->dev,
6560 "Term power is absent on scsi bus %d\n",
6561 bus->res_addr.bus);
6562 }
6563
6564 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6565 }
6566}
6567
6568/**
6569 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6570 * @ioa_cfg: ioa config struct
6571 *
6572 * Looks through the config table checking for SES devices. If
6573 * the SES device is in the SES table indicating a maximum SCSI
6574 * bus speed, the speed is limited for the bus.
6575 *
6576 * Return value:
6577 * none
6578 **/
6579static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6580{
6581 u32 max_xfer_rate;
6582 int i;
6583
6584 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6585 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6586 ioa_cfg->bus_attr[i].bus_width);
6587
6588 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6589 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6590 }
6591}
6592
6593/**
6594 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6595 * @ioa_cfg: ioa config struct
6596 * @mode_pages: mode page 28 buffer
6597 *
6598 * Updates mode page 28 based on driver configuration
6599 *
6600 * Return value:
6601 * none
6602 **/
6603static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6604 struct ipr_mode_pages *mode_pages)
6605{
6606 int i, entry_length;
6607 struct ipr_dev_bus_entry *bus;
6608 struct ipr_bus_attributes *bus_attr;
6609 struct ipr_mode_page28 *mode_page;
6610
6611 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6612 sizeof(struct ipr_mode_page28));
6613
6614 entry_length = mode_page->entry_length;
6615
6616 /* Loop for each device bus entry */
6617 for (i = 0, bus = mode_page->bus;
6618 i < mode_page->num_entries;
6619 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6620 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6621 dev_err(&ioa_cfg->pdev->dev,
6622 "Invalid resource address reported: 0x%08X\n",
6623 IPR_GET_PHYS_LOC(bus->res_addr));
6624 continue;
6625 }
6626
6627 bus_attr = &ioa_cfg->bus_attr[i];
6628 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6629 bus->bus_width = bus_attr->bus_width;
6630 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6631 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6632 if (bus_attr->qas_enabled)
6633 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6634 else
6635 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6636 }
6637}
6638
6639/**
6640 * ipr_build_mode_select - Build a mode select command
6641 * @ipr_cmd: ipr command struct
6642 * @res_handle: resource handle to send command to
6643 * @parm: Byte 2 of Mode Sense command
6644 * @dma_addr: DMA buffer address
6645 * @xfer_len: data transfer length
6646 *
6647 * Return value:
6648 * none
6649 **/
6650static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 6651 __be32 res_handle, u8 parm,
6652 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6653{
1da177e4
LT		 6654 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6655
6656 ioarcb->res_handle = res_handle;
6657 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6658 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6659 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6660 ioarcb->cmd_pkt.cdb[1] = parm;
6661 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6662
a32c055f 6663 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6664}
6665
6666/**
6667 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6668 * @ipr_cmd: ipr command struct
6669 *
6670 * This function sets up the SCSI bus attributes and sends
6671 * a Mode Select for Page 28 to activate them.
6672 *
6673 * Return value:
6674 * IPR_RC_JOB_RETURN
6675 **/
6676static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6677{
6678 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6679 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6680 int length;
6681
6682 ENTER;
4733804c
BK		 6683 ipr_scsi_bus_speed_limit(ioa_cfg);
6684 ipr_check_term_power(ioa_cfg, mode_pages);
6685 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6686 length = mode_pages->hdr.length + 1;
6687 mode_pages->hdr.length = 0;
1da177e4
LT		 6688
6689 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6690 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6691 length);
6692
f72919ec
WB		 6693 ipr_cmd->job_step = ipr_set_supported_devs;
6694 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6695 struct ipr_resource_entry, queue);
1da177e4
LT		 6696 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6697
6698 LEAVE;
6699 return IPR_RC_JOB_RETURN;
6700}
6701
6702/**
6703 * ipr_build_mode_sense - Builds a mode sense command
6704 * @ipr_cmd: ipr command struct
6705 * @res: resource entry struct
6706 * @parm: Byte 2 of mode sense command
6707 * @dma_addr: DMA address of mode sense buffer
6708 * @xfer_len: Size of DMA buffer
6709 *
6710 * Return value:
6711 * none
6712 **/
6713static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6714 __be32 res_handle,
a32c055f 6715 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6716{
1da177e4
LT		 6717 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6718
6719 ioarcb->res_handle = res_handle;
6720 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6721 ioarcb->cmd_pkt.cdb[2] = parm;
6722 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6723 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6724
a32c055f 6725 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6726}
6727
dfed823e
BK		 6728/**
6729 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6730 * @ipr_cmd: ipr command struct
6731 *
6732 * This function handles the failure of an IOA bringup command.
6733 *
6734 * Return value:
6735 * IPR_RC_JOB_RETURN
6736 **/
6737static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6738{
6739 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6740 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 6741
6742 dev_err(&ioa_cfg->pdev->dev,
6743 "0x%02X failed with IOASC: 0x%08X\n",
6744 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6745
6746 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6747 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6748 return IPR_RC_JOB_RETURN;
6749}
6750
6751/**
6752 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6753 * @ipr_cmd: ipr command struct
6754 *
6755 * This function handles the failure of a Mode Sense to the IOAFP.
6756 * Some adapters do not handle all mode pages.
6757 *
6758 * Return value:
6759 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6760 **/
6761static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6762{
f72919ec 6763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6764 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 6765
6766 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 6767 ipr_cmd->job_step = ipr_set_supported_devs;
6768 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6769 struct ipr_resource_entry, queue);
dfed823e
BK		 6770 return IPR_RC_JOB_CONTINUE;
6771 }
6772
6773 return ipr_reset_cmd_failed(ipr_cmd);
6774}
6775
1da177e4
LT		 6776/**
6777 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6778 * @ipr_cmd: ipr command struct
6779 *
6780 * This function send a Page 28 mode sense to the IOA to
6781 * retrieve SCSI bus attributes.
6782 *
6783 * Return value:
6784 * IPR_RC_JOB_RETURN
6785 **/
6786static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6787{
6788 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6789
6790 ENTER;
6791 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6792 0x28, ioa_cfg->vpd_cbs_dma +
6793 offsetof(struct ipr_misc_cbs, mode_pages),
6794 sizeof(struct ipr_mode_pages));
6795
6796 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 6797 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 6798
6799 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6800
6801 LEAVE;
6802 return IPR_RC_JOB_RETURN;
6803}
6804
ac09c349
BK		 6805/**
6806 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6807 * @ipr_cmd: ipr command struct
6808 *
6809 * This function enables dual IOA RAID support if possible.
6810 *
6811 * Return value:
6812 * IPR_RC_JOB_RETURN
6813 **/
6814static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6815{
6816 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6817 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6818 struct ipr_mode_page24 *mode_page;
6819 int length;
6820
6821 ENTER;
6822 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6823 sizeof(struct ipr_mode_page24));
6824
6825 if (mode_page)
6826 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6827
6828 length = mode_pages->hdr.length + 1;
6829 mode_pages->hdr.length = 0;
6830
6831 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6832 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6833 length);
6834
6835 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6836 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6837
6838 LEAVE;
6839 return IPR_RC_JOB_RETURN;
6840}
6841
6842/**
6843 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6844 * @ipr_cmd: ipr command struct
6845 *
6846 * This function handles the failure of a Mode Sense to the IOAFP.
6847 * Some adapters do not handle all mode pages.
6848 *
6849 * Return value:
6850 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6851 **/
6852static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6853{
96d21f00 6854 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 6855
6856 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6857 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6858 return IPR_RC_JOB_CONTINUE;
6859 }
6860
6861 return ipr_reset_cmd_failed(ipr_cmd);
6862}
6863
6864/**
6865 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6866 * @ipr_cmd: ipr command struct
6867 *
6868 * This function send a mode sense to the IOA to retrieve
6869 * the IOA Advanced Function Control mode page.
6870 *
6871 * Return value:
6872 * IPR_RC_JOB_RETURN
6873 **/
6874static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6875{
6876 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6877
6878 ENTER;
6879 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6880 0x24, ioa_cfg->vpd_cbs_dma +
6881 offsetof(struct ipr_misc_cbs, mode_pages),
6882 sizeof(struct ipr_mode_pages));
6883
6884 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6885 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6886
6887 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6888
6889 LEAVE;
6890 return IPR_RC_JOB_RETURN;
6891}
6892
1da177e4
LT		 6893/**
6894 * ipr_init_res_table - Initialize the resource table
6895 * @ipr_cmd: ipr command struct
6896 *
6897 * This function looks through the existing resource table, comparing
6898 * it with the config table. This function will take care of old/new
6899 * devices and schedule adding/removing them from the mid-layer
6900 * as appropriate.
6901 *
6902 * Return value:
6903 * IPR_RC_JOB_CONTINUE
6904 **/
6905static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6906{
6907 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6908 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 6909 struct ipr_config_table_entry_wrapper cfgtew;
6910 int entries, found, flag, i;
1da177e4
LT		 6911 LIST_HEAD(old_res);
6912
6913 ENTER;
3e7ebdfa
WB		 6914 if (ioa_cfg->sis64)
6915 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6916 else
6917 flag = ioa_cfg->u.cfg_table->hdr.flags;
6918
6919 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 6920 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6921
6922 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6923 list_move_tail(&res->queue, &old_res);
6924
3e7ebdfa 6925 if (ioa_cfg->sis64)
438b0331 6926 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 6927 else
6928 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6929
6930 for (i = 0; i < entries; i++) {
6931 if (ioa_cfg->sis64)
6932 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6933 else
6934 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 6935 found = 0;
6936
6937 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 6938 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 6939 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6940 found = 1;
6941 break;
6942 }
6943 }
6944
6945 if (!found) {
6946 if (list_empty(&ioa_cfg->free_res_q)) {
6947 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6948 break;
6949 }
6950
6951 found = 1;
6952 res = list_entry(ioa_cfg->free_res_q.next,
6953 struct ipr_resource_entry, queue);
6954 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 6955 ipr_init_res_entry(res, &cfgtew);
1da177e4 6956 res->add_to_ml = 1;
56115598
WB		 6957 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6958 res->sdev->allow_restart = 1;
1da177e4
LT		 6959
6960 if (found)
3e7ebdfa 6961 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 6962 }
6963
6964 list_for_each_entry_safe(res, temp, &old_res, queue) {
6965 if (res->sdev) {
6966 res->del_from_ml = 1;
3e7ebdfa 6967 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 6968 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 6969 }
6970 }
6971
3e7ebdfa
WB		 6972 list_for_each_entry_safe(res, temp, &old_res, queue) {
6973 ipr_clear_res_target(res);
6974 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6975 }
6976
ac09c349
BK		 6977 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6978 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6979 else
6980 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 6981
6982 LEAVE;
6983 return IPR_RC_JOB_CONTINUE;
6984}
6985
6986/**
6987 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6988 * @ipr_cmd: ipr command struct
6989 *
6990 * This function sends a Query IOA Configuration command
6991 * to the adapter to retrieve the IOA configuration table.
6992 *
6993 * Return value:
6994 * IPR_RC_JOB_RETURN
6995 **/
6996static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6997{
6998 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6999 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7000 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7001 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7002
7003 ENTER;
ac09c349
BK		 7004 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7005 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7006 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7007 ucode_vpd->major_release, ucode_vpd->card_type,
7008 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7009 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7010 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7011
7012 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7013 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7014 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7015 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7016
3e7ebdfa 7017 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7018 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7019
7020 ipr_cmd->job_step = ipr_init_res_table;
7021
7022 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7023
7024 LEAVE;
7025 return IPR_RC_JOB_RETURN;
7026}
7027
7028/**
7029 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7030 * @ipr_cmd: ipr command struct
7031 *
7032 * This utility function sends an inquiry to the adapter.
7033 *
7034 * Return value:
7035 * none
7036 **/
7037static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7038 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7039{
7040 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7041
7042 ENTER;
7043 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7044 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7045
7046 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7047 ioarcb->cmd_pkt.cdb[1] = flags;
7048 ioarcb->cmd_pkt.cdb[2] = page;
7049 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7050
a32c055f 7051 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7052
7053 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7054 LEAVE;
7055}
7056
62275040
BK		 7057/**
7058 * ipr_inquiry_page_supported - Is the given inquiry page supported
7059 * @page0: inquiry page 0 buffer
7060 * @page: page code.
7061 *
7062 * This function determines if the specified inquiry page is supported.
7063 *
7064 * Return value:
7065 * 1 if page is supported / 0 if not
7066 **/
7067static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7068{
7069 int i;
7070
7071 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7072 if (page0->page[i] == page)
7073 return 1;
7074
7075 return 0;
7076}
7077
ac09c349
BK		 7078/**
7079 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7080 * @ipr_cmd: ipr command struct
7081 *
7082 * This function sends a Page 0xD0 inquiry to the adapter
7083 * to retrieve adapter capabilities.
7084 *
7085 * Return value:
7086 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7087 **/
7088static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7089{
7090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7091 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7092 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7093
7094 ENTER;
7095 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7096 memset(cap, 0, sizeof(*cap));
7097
7098 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7099 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7100 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7101 sizeof(struct ipr_inquiry_cap));
7102 return IPR_RC_JOB_RETURN;
7103 }
7104
7105 LEAVE;
7106 return IPR_RC_JOB_CONTINUE;
7107}
7108
1da177e4
LT		 7109/**
7110 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7111 * @ipr_cmd: ipr command struct
7112 *
7113 * This function sends a Page 3 inquiry to the adapter
7114 * to retrieve software VPD information.
7115 *
7116 * Return value:
7117 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7118 **/
7119static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7120{
7121 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7122
7123 ENTER;
7124
ac09c349 7125 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7126
7127 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7128 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7129 sizeof(struct ipr_inquiry_page3));
7130
7131 LEAVE;
7132 return IPR_RC_JOB_RETURN;
7133}
7134
7135/**
7136 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7137 * @ipr_cmd: ipr command struct
7138 *
7139 * This function sends a Page 0 inquiry to the adapter
7140 * to retrieve supported inquiry pages.
7141 *
7142 * Return value:
7143 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7144 **/
7145static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7146{
7147 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7148 char type[5];
7149
7150 ENTER;
7151
7152 /* Grab the type out of the VPD and store it away */
7153 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7154 type[4] = '\0';
7155 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7156
62275040 7157 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7158
62275040
BK		 7159 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7160 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7161 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7162
7163 LEAVE;
7164 return IPR_RC_JOB_RETURN;
7165}
7166
7167/**
7168 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7169 * @ipr_cmd: ipr command struct
7170 *
7171 * This function sends a standard inquiry to the adapter.
7172 *
7173 * Return value:
7174 * IPR_RC_JOB_RETURN
7175 **/
7176static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7177{
7178 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7179
7180 ENTER;
62275040 7181 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7182
7183 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7184 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7185 sizeof(struct ipr_ioa_vpd));
7186
7187 LEAVE;
7188 return IPR_RC_JOB_RETURN;
7189}
7190
7191/**
214777ba 7192 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7193 * @ipr_cmd: ipr command struct
7194 *
7195 * This function send an Identify Host Request Response Queue
7196 * command to establish the HRRQ with the adapter.
7197 *
7198 * Return value:
7199 * IPR_RC_JOB_RETURN
7200 **/
214777ba 7201static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7202{
7203 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7204 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7205
7206 ENTER;
7207 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7208
7209 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7210 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7211
7212 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
214777ba
WB		 7213 if (ioa_cfg->sis64)
7214 ioarcb->cmd_pkt.cdb[1] = 0x1;
1da177e4 7215 ioarcb->cmd_pkt.cdb[2] =
214777ba 7216 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
1da177e4 7217 ioarcb->cmd_pkt.cdb[3] =
214777ba 7218 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
1da177e4 7219 ioarcb->cmd_pkt.cdb[4] =
214777ba 7220 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
1da177e4 7221 ioarcb->cmd_pkt.cdb[5] =
214777ba 7222 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
1da177e4
LT		 7223 ioarcb->cmd_pkt.cdb[7] =
7224 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7225 ioarcb->cmd_pkt.cdb[8] =
7226 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7227
214777ba
WB		 7228 if (ioa_cfg->sis64) {
7229 ioarcb->cmd_pkt.cdb[10] =
7230 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7231 ioarcb->cmd_pkt.cdb[11] =
7232 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7233 ioarcb->cmd_pkt.cdb[12] =
7234 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7235 ioarcb->cmd_pkt.cdb[13] =
7236 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7237 }
7238
1da177e4
LT		 7239 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7240
7241 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7242
7243 LEAVE;
7244 return IPR_RC_JOB_RETURN;
7245}
7246
7247/**
7248 * ipr_reset_timer_done - Adapter reset timer function
7249 * @ipr_cmd: ipr command struct
7250 *
7251 * Description: This function is used in adapter reset processing
7252 * for timing events. If the reset_cmd pointer in the IOA
7253 * config struct is not this adapter's we are doing nested
7254 * resets and fail_all_ops will take care of freeing the
7255 * command block.
7256 *
7257 * Return value:
7258 * none
7259 **/
7260static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7261{
7262 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7263 unsigned long lock_flags = 0;
7264
7265 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7266
7267 if (ioa_cfg->reset_cmd == ipr_cmd) {
7268 list_del(&ipr_cmd->queue);
7269 ipr_cmd->done(ipr_cmd);
7270 }
7271
7272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7273}
7274
7275/**
7276 * ipr_reset_start_timer - Start a timer for adapter reset job
7277 * @ipr_cmd: ipr command struct
7278 * @timeout: timeout value
7279 *
7280 * Description: This function is used in adapter reset processing
7281 * for timing events. If the reset_cmd pointer in the IOA
7282 * config struct is not this adapter's we are doing nested
7283 * resets and fail_all_ops will take care of freeing the
7284 * command block.
7285 *
7286 * Return value:
7287 * none
7288 **/
7289static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7290 unsigned long timeout)
7291{
7292 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7293 ipr_cmd->done = ipr_reset_ioa_job;
7294
7295 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7296 ipr_cmd->timer.expires = jiffies + timeout;
7297 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7298 add_timer(&ipr_cmd->timer);
7299}
7300
7301/**
7302 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7303 * @ioa_cfg: ioa cfg struct
7304 *
7305 * Return value:
7306 * nothing
7307 **/
7308static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7309{
7310 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7311
7312 /* Initialize Host RRQ pointers */
7313 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7314 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7315 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7316 ioa_cfg->toggle_bit = 1;
7317
7318 /* Zero out config table */
3e7ebdfa 7319 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7320}
7321
214777ba
WB		 7322/**
7323 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7324 * @ipr_cmd: ipr command struct
7325 *
7326 * Return value:
7327 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7328 **/
7329static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7330{
7331 unsigned long stage, stage_time;
7332 u32 feedback;
7333 volatile u32 int_reg;
7334 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7335 u64 maskval = 0;
7336
7337 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7338 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7339 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7340
7341 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7342
7343 /* sanity check the stage_time value */
438b0331
WB		 7344 if (stage_time == 0)
7345 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7346 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7347 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7348 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7349 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7350
7351 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7352 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7353 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7354 stage_time = ioa_cfg->transop_timeout;
7355 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7356 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7357 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7358 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7359 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7360 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7361 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7362 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7363 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7364 return IPR_RC_JOB_CONTINUE;
7365 }
214777ba
WB		 7366 }
7367
7368 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7369 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7370 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7371 ipr_cmd->done = ipr_reset_ioa_job;
7372 add_timer(&ipr_cmd->timer);
7373 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7374
7375 return IPR_RC_JOB_RETURN;
7376}
7377
1da177e4
LT		 7378/**
7379 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7380 * @ipr_cmd: ipr command struct
7381 *
7382 * This function reinitializes some control blocks and
7383 * enables destructive diagnostics on the adapter.
7384 *
7385 * Return value:
7386 * IPR_RC_JOB_RETURN
7387 **/
7388static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7389{
7390 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7391 volatile u32 int_reg;
7be96900 7392 volatile u64 maskval;
1da177e4
LT		 7393
7394 ENTER;
214777ba 7395 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7396 ipr_init_ioa_mem(ioa_cfg);
7397
7398 ioa_cfg->allow_interrupts = 1;
8701f185
WB		 7399 if (ioa_cfg->sis64) {
7400 /* Set the adapter to the correct endian mode. */
7401 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7402 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7403 }
7404
7be96900 7405 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7406
7407 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7408 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7409 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7410 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7411 return IPR_RC_JOB_CONTINUE;
7412 }
7413
7414 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7415 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7416
7be96900
WB		 7417 if (ioa_cfg->sis64) {
7418 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7419 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7420 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7421 } else
7422 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7423
1da177e4
LT		 7424 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7425
7426 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7427
214777ba
WB		 7428 if (ioa_cfg->sis64) {
7429 ipr_cmd->job_step = ipr_reset_next_stage;
7430 return IPR_RC_JOB_CONTINUE;
7431 }
7432
1da177e4 7433 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7434 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7435 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7436 ipr_cmd->done = ipr_reset_ioa_job;
7437 add_timer(&ipr_cmd->timer);
7438 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7439
7440 LEAVE;
7441 return IPR_RC_JOB_RETURN;
7442}
7443
7444/**
7445 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7446 * @ipr_cmd: ipr command struct
7447 *
7448 * This function is invoked when an adapter dump has run out
7449 * of processing time.
7450 *
7451 * Return value:
7452 * IPR_RC_JOB_CONTINUE
7453 **/
7454static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7455{
7456 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7457
7458 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 7459 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7460 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 7461 ioa_cfg->sdt_state = ABORT_DUMP;
7462
4c647e90 7463 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 7464 ipr_cmd->job_step = ipr_reset_alert;
7465
7466 return IPR_RC_JOB_CONTINUE;
7467}
7468
7469/**
7470 * ipr_unit_check_no_data - Log a unit check/no data error log
7471 * @ioa_cfg: ioa config struct
7472 *
7473 * Logs an error indicating the adapter unit checked, but for some
7474 * reason, we were unable to fetch the unit check buffer.
7475 *
7476 * Return value:
7477 * nothing
7478 **/
7479static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7480{
7481 ioa_cfg->errors_logged++;
7482 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7483}
7484
7485/**
7486 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7487 * @ioa_cfg: ioa config struct
7488 *
7489 * Fetches the unit check buffer from the adapter by clocking the data
7490 * through the mailbox register.
7491 *
7492 * Return value:
7493 * nothing
7494 **/
7495static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7496{
7497 unsigned long mailbox;
7498 struct ipr_hostrcb *hostrcb;
7499 struct ipr_uc_sdt sdt;
7500 int rc, length;
65f56475 7501 u32 ioasc;
1da177e4
LT		 7502
7503 mailbox = readl(ioa_cfg->ioa_mailbox);
7504
dcbad00e 7505 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 7506 ipr_unit_check_no_data(ioa_cfg);
7507 return;
7508 }
7509
7510 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7511 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7512 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7513
dcbad00e
WB		 7514 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7515 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7516 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 7517 ipr_unit_check_no_data(ioa_cfg);
7518 return;
7519 }
7520
7521 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 7522 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7523 length = be32_to_cpu(sdt.entry[0].end_token);
7524 else
7525 length = (be32_to_cpu(sdt.entry[0].end_token) -
7526 be32_to_cpu(sdt.entry[0].start_token)) &
7527 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 7528
7529 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7530 struct ipr_hostrcb, queue);
7531 list_del(&hostrcb->queue);
7532 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7533
7534 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 7535 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 7536 (__be32 *)&hostrcb->hcam,
7537 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7538
65f56475 7539 if (!rc) {
1da177e4 7540 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 7541 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 7542 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7543 ioa_cfg->sdt_state == GET_DUMP)
7544 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7545 } else
1da177e4
LT		 7546 ipr_unit_check_no_data(ioa_cfg);
7547
7548 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7549}
7550
110def85
WB		 7551/**
7552 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7553 * @ipr_cmd: ipr command struct
7554 *
7555 * Description: This function will call to get the unit check buffer.
7556 *
7557 * Return value:
7558 * IPR_RC_JOB_RETURN
7559 **/
7560static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7561{
7562 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7563
7564 ENTER;
7565 ioa_cfg->ioa_unit_checked = 0;
7566 ipr_get_unit_check_buffer(ioa_cfg);
7567 ipr_cmd->job_step = ipr_reset_alert;
7568 ipr_reset_start_timer(ipr_cmd, 0);
7569
7570 LEAVE;
7571 return IPR_RC_JOB_RETURN;
7572}
7573
1da177e4
LT		 7574/**
7575 * ipr_reset_restore_cfg_space - Restore PCI config space.
7576 * @ipr_cmd: ipr command struct
7577 *
7578 * Description: This function restores the saved PCI config space of
7579 * the adapter, fails all outstanding ops back to the callers, and
7580 * fetches the dump/unit check if applicable to this reset.
7581 *
7582 * Return value:
7583 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7584 **/
7585static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7586{
7587 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 7588 u32 int_reg;
1da177e4
LT		 7589
7590 ENTER;
99c965dd 7591 ioa_cfg->pdev->state_saved = true;
1d3c16a8 7592 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 7593
7594 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 7595 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 7596 return IPR_RC_JOB_CONTINUE;
7597 }
7598
7599 ipr_fail_all_ops(ioa_cfg);
7600
8701f185
WB		 7601 if (ioa_cfg->sis64) {
7602 /* Set the adapter to the correct endian mode. */
7603 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7604 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7605 }
7606
1da177e4 7607 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 7608 if (ioa_cfg->sis64) {
7609 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7610 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7611 return IPR_RC_JOB_RETURN;
7612 } else {
7613 ioa_cfg->ioa_unit_checked = 0;
7614 ipr_get_unit_check_buffer(ioa_cfg);
7615 ipr_cmd->job_step = ipr_reset_alert;
7616 ipr_reset_start_timer(ipr_cmd, 0);
7617 return IPR_RC_JOB_RETURN;
7618 }
1da177e4
LT		 7619 }
7620
7621 if (ioa_cfg->in_ioa_bringdown) {
7622 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7623 } else {
7624 ipr_cmd->job_step = ipr_reset_enable_ioa;
7625
7626 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 7627 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 7628 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 7629 if (ioa_cfg->sis64)
7630 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
7631 else
7632 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 7633 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7634 schedule_work(&ioa_cfg->work_q);
7635 return IPR_RC_JOB_RETURN;
7636 }
7637 }
7638
438b0331 7639 LEAVE;
1da177e4
LT		 7640 return IPR_RC_JOB_CONTINUE;
7641}
7642
e619e1a7
BK		 7643/**
7644 * ipr_reset_bist_done - BIST has completed on the adapter.
7645 * @ipr_cmd: ipr command struct
7646 *
7647 * Description: Unblock config space and resume the reset process.
7648 *
7649 * Return value:
7650 * IPR_RC_JOB_CONTINUE
7651 **/
7652static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7653{
fb51ccbf
JK		 7654 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7655
e619e1a7 7656 ENTER;
fb51ccbf
JK		 7657 if (ioa_cfg->cfg_locked)
7658 pci_cfg_access_unlock(ioa_cfg->pdev);
7659 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 7660 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7661 LEAVE;
7662 return IPR_RC_JOB_CONTINUE;
7663}
7664
1da177e4
LT		 7665/**
7666 * ipr_reset_start_bist - Run BIST on the adapter.
7667 * @ipr_cmd: ipr command struct
7668 *
7669 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7670 *
7671 * Return value:
7672 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7673 **/
7674static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7675{
7676 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 7677 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 7678
7679 ENTER;
cb237ef7
WB		 7680 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7681 writel(IPR_UPROCI_SIS64_START_BIST,
7682 ioa_cfg->regs.set_uproc_interrupt_reg32);
7683 else
7684 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7685
7686 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 7687 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 7688 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7689 rc = IPR_RC_JOB_RETURN;
cb237ef7 7690 } else {
fb51ccbf
JK		 7691 if (ioa_cfg->cfg_locked)
7692 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
7693 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 7694 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7695 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7696 }
7697
7698 LEAVE;
7699 return rc;
7700}
7701
463fc696
BK		 7702/**
7703 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7704 * @ipr_cmd: ipr command struct
7705 *
7706 * Description: This clears PCI reset to the adapter and delays two seconds.
7707 *
7708 * Return value:
7709 * IPR_RC_JOB_RETURN
7710 **/
7711static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7712{
7713 ENTER;
7714 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7715 ipr_cmd->job_step = ipr_reset_bist_done;
7716 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7717 LEAVE;
7718 return IPR_RC_JOB_RETURN;
7719}
7720
7721/**
7722 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7723 * @ipr_cmd: ipr command struct
7724 *
7725 * Description: This asserts PCI reset to the adapter.
7726 *
7727 * Return value:
7728 * IPR_RC_JOB_RETURN
7729 **/
7730static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7731{
7732 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7733 struct pci_dev *pdev = ioa_cfg->pdev;
7734
7735 ENTER;
463fc696
BK		 7736 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7737 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7738 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7739 LEAVE;
7740 return IPR_RC_JOB_RETURN;
7741}
7742
fb51ccbf
JK		 7743/**
7744 * ipr_reset_block_config_access_wait - Wait for permission to block config access
7745 * @ipr_cmd: ipr command struct
7746 *
7747 * Description: This attempts to block config access to the IOA.
7748 *
7749 * Return value:
7750 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7751 **/
7752static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
7753{
7754 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7755 int rc = IPR_RC_JOB_CONTINUE;
7756
7757 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
7758 ioa_cfg->cfg_locked = 1;
7759 ipr_cmd->job_step = ioa_cfg->reset;
7760 } else {
7761 if (ipr_cmd->u.time_left) {
7762 rc = IPR_RC_JOB_RETURN;
7763 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7764 ipr_reset_start_timer(ipr_cmd,
7765 IPR_CHECK_FOR_RESET_TIMEOUT);
7766 } else {
7767 ipr_cmd->job_step = ioa_cfg->reset;
7768 dev_err(&ioa_cfg->pdev->dev,
7769 "Timed out waiting to lock config access. Resetting anyway.\n");
7770 }
7771 }
7772
7773 return rc;
7774}
7775
7776/**
7777 * ipr_reset_block_config_access - Block config access to the IOA
7778 * @ipr_cmd: ipr command struct
7779 *
7780 * Description: This attempts to block config access to the IOA
7781 *
7782 * Return value:
7783 * IPR_RC_JOB_CONTINUE
7784 **/
7785static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
7786{
7787 ipr_cmd->ioa_cfg->cfg_locked = 0;
7788 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
7789 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7790 return IPR_RC_JOB_CONTINUE;
7791}
7792
1da177e4
LT		 7793/**
7794 * ipr_reset_allowed - Query whether or not IOA can be reset
7795 * @ioa_cfg: ioa config struct
7796 *
7797 * Return value:
7798 * 0 if reset not allowed / non-zero if reset is allowed
7799 **/
7800static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7801{
7802 volatile u32 temp_reg;
7803
7804 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7805 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7806}
7807
7808/**
7809 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7810 * @ipr_cmd: ipr command struct
7811 *
7812 * Description: This function waits for adapter permission to run BIST,
7813 * then runs BIST. If the adapter does not give permission after a
7814 * reasonable time, we will reset the adapter anyway. The impact of
7815 * resetting the adapter without warning the adapter is the risk of
7816 * losing the persistent error log on the adapter. If the adapter is
7817 * reset while it is writing to the flash on the adapter, the flash
7818 * segment will have bad ECC and be zeroed.
7819 *
7820 * Return value:
7821 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7822 **/
7823static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7824{
7825 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7826 int rc = IPR_RC_JOB_RETURN;
7827
7828 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7829 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7830 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7831 } else {
fb51ccbf 7832 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 7833 rc = IPR_RC_JOB_CONTINUE;
7834 }
7835
7836 return rc;
7837}
7838
7839/**
8701f185 7840 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 7841 * @ipr_cmd: ipr command struct
7842 *
7843 * Description: This function alerts the adapter that it will be reset.
7844 * If memory space is not currently enabled, proceed directly
7845 * to running BIST on the adapter. The timer must always be started
7846 * so we guarantee we do not run BIST from ipr_isr.
7847 *
7848 * Return value:
7849 * IPR_RC_JOB_RETURN
7850 **/
7851static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7852{
7853 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7854 u16 cmd_reg;
7855 int rc;
7856
7857 ENTER;
7858 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7859
7860 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7861 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 7862 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 7863 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7864 } else {
fb51ccbf 7865 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 7866 }
7867
7868 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7869 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7870
7871 LEAVE;
7872 return IPR_RC_JOB_RETURN;
7873}
7874
7875/**
7876 * ipr_reset_ucode_download_done - Microcode download completion
7877 * @ipr_cmd: ipr command struct
7878 *
7879 * Description: This function unmaps the microcode download buffer.
7880 *
7881 * Return value:
7882 * IPR_RC_JOB_CONTINUE
7883 **/
7884static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7885{
7886 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7887 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7888
7889 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7890 sglist->num_sg, DMA_TO_DEVICE);
7891
7892 ipr_cmd->job_step = ipr_reset_alert;
7893 return IPR_RC_JOB_CONTINUE;
7894}
7895
7896/**
7897 * ipr_reset_ucode_download - Download microcode to the adapter
7898 * @ipr_cmd: ipr command struct
7899 *
7900 * Description: This function checks to see if it there is microcode
7901 * to download to the adapter. If there is, a download is performed.
7902 *
7903 * Return value:
7904 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7905 **/
7906static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7907{
7908 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7909 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7910
7911 ENTER;
7912 ipr_cmd->job_step = ipr_reset_alert;
7913
7914 if (!sglist)
7915 return IPR_RC_JOB_CONTINUE;
7916
7917 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7918 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7919 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7920 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7921 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7922 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7923 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7924
a32c055f
WB		 7925 if (ioa_cfg->sis64)
7926 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7927 else
7928 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 7929 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7930
7931 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7932 IPR_WRITE_BUFFER_TIMEOUT);
7933
7934 LEAVE;
7935 return IPR_RC_JOB_RETURN;
7936}
7937
7938/**
7939 * ipr_reset_shutdown_ioa - Shutdown the adapter
7940 * @ipr_cmd: ipr command struct
7941 *
7942 * Description: This function issues an adapter shutdown of the
7943 * specified type to the specified adapter as part of the
7944 * adapter reset job.
7945 *
7946 * Return value:
7947 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7948 **/
7949static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7950{
7951 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7952 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7953 unsigned long timeout;
7954 int rc = IPR_RC_JOB_CONTINUE;
7955
7956 ENTER;
7957 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7958 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7959 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7960 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7961 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7962
ac09c349
BK		 7963 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7964 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7965 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7966 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 7967 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7968 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 7969 else
ac09c349 7970 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7971
7972 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7973
7974 rc = IPR_RC_JOB_RETURN;
7975 ipr_cmd->job_step = ipr_reset_ucode_download;
7976 } else
7977 ipr_cmd->job_step = ipr_reset_alert;
7978
7979 LEAVE;
7980 return rc;
7981}
7982
7983/**
7984 * ipr_reset_ioa_job - Adapter reset job
7985 * @ipr_cmd: ipr command struct
7986 *
7987 * Description: This function is the job router for the adapter reset job.
7988 *
7989 * Return value:
7990 * none
7991 **/
7992static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7993{
7994 u32 rc, ioasc;
1da177e4
LT		 7995 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7996
7997 do {
96d21f00 7998 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 7999
8000 if (ioa_cfg->reset_cmd != ipr_cmd) {
8001 /*
8002 * We are doing nested adapter resets and this is
8003 * not the current reset job.
8004 */
8005 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8006 return;
8007 }
8008
8009 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 8010 rc = ipr_cmd->job_step_failed(ipr_cmd);
8011 if (rc == IPR_RC_JOB_RETURN)
8012 return;
1da177e4
LT		 8013 }
8014
8015 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8016 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4
LT		 8017 rc = ipr_cmd->job_step(ipr_cmd);
8018 } while(rc == IPR_RC_JOB_CONTINUE);
8019}
8020
8021/**
8022 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8023 * @ioa_cfg: ioa config struct
8024 * @job_step: first job step of reset job
8025 * @shutdown_type: shutdown type
8026 *
8027 * Description: This function will initiate the reset of the given adapter
8028 * starting at the selected job step.
8029 * If the caller needs to wait on the completion of the reset,
8030 * the caller must sleep on the reset_wait_q.
8031 *
8032 * Return value:
8033 * none
8034 **/
8035static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8036 int (*job_step) (struct ipr_cmnd *),
8037 enum ipr_shutdown_type shutdown_type)
8038{
8039 struct ipr_cmnd *ipr_cmd;
8040
8041 ioa_cfg->in_reset_reload = 1;
8042 ioa_cfg->allow_cmds = 0;
8043 scsi_block_requests(ioa_cfg->host);
8044
8045 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8046 ioa_cfg->reset_cmd = ipr_cmd;
8047 ipr_cmd->job_step = job_step;
8048 ipr_cmd->u.shutdown_type = shutdown_type;
8049
8050 ipr_reset_ioa_job(ipr_cmd);
8051}
8052
8053/**
8054 * ipr_initiate_ioa_reset - Initiate an adapter reset
8055 * @ioa_cfg: ioa config struct
8056 * @shutdown_type: shutdown type
8057 *
8058 * Description: This function will initiate the reset of the given adapter.
8059 * If the caller needs to wait on the completion of the reset,
8060 * the caller must sleep on the reset_wait_q.
8061 *
8062 * Return value:
8063 * none
8064 **/
8065static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8066 enum ipr_shutdown_type shutdown_type)
8067{
8068 if (ioa_cfg->ioa_is_dead)
8069 return;
8070
41e9a696
BK		 8071 if (ioa_cfg->in_reset_reload) {
8072 if (ioa_cfg->sdt_state == GET_DUMP)
8073 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8074 else if (ioa_cfg->sdt_state == READ_DUMP)
8075 ioa_cfg->sdt_state = ABORT_DUMP;
8076 }
1da177e4
LT		 8077
8078 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8079 dev_err(&ioa_cfg->pdev->dev,
8080 "IOA taken offline - error recovery failed\n");
8081
8082 ioa_cfg->reset_retries = 0;
8083 ioa_cfg->ioa_is_dead = 1;
8084
8085 if (ioa_cfg->in_ioa_bringdown) {
8086 ioa_cfg->reset_cmd = NULL;
8087 ioa_cfg->in_reset_reload = 0;
8088 ipr_fail_all_ops(ioa_cfg);
8089 wake_up_all(&ioa_cfg->reset_wait_q);
8090
8091 spin_unlock_irq(ioa_cfg->host->host_lock);
8092 scsi_unblock_requests(ioa_cfg->host);
8093 spin_lock_irq(ioa_cfg->host->host_lock);
8094 return;
8095 } else {
8096 ioa_cfg->in_ioa_bringdown = 1;
8097 shutdown_type = IPR_SHUTDOWN_NONE;
8098 }
8099 }
8100
8101 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8102 shutdown_type);
8103}
8104
f8a88b19
LV		 8105/**
8106 * ipr_reset_freeze - Hold off all I/O activity
8107 * @ipr_cmd: ipr command struct
8108 *
8109 * Description: If the PCI slot is frozen, hold off all I/O
8110 * activity; then, as soon as the slot is available again,
8111 * initiate an adapter reset.
8112 */
8113static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8114{
8115 /* Disallow new interrupts, avoid loop */
8116 ipr_cmd->ioa_cfg->allow_interrupts = 0;
8117 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
8118 ipr_cmd->done = ipr_reset_ioa_job;
8119 return IPR_RC_JOB_RETURN;
8120}
8121
8122/**
8123 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8124 * @pdev: PCI device struct
8125 *
8126 * Description: This routine is called to tell us that the PCI bus
8127 * is down. Can't do anything here, except put the device driver
8128 * into a holding pattern, waiting for the PCI bus to come back.
8129 */
8130static void ipr_pci_frozen(struct pci_dev *pdev)
8131{
8132 unsigned long flags = 0;
8133 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8134
8135 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8136 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8137 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8138}
8139
8140/**
8141 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8142 * @pdev: PCI device struct
8143 *
8144 * Description: This routine is called by the pci error recovery
8145 * code after the PCI slot has been reset, just before we
8146 * should resume normal operations.
8147 */
8148static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8149{
8150 unsigned long flags = 0;
8151 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8152
8153 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
463fc696
BK		 8154 if (ioa_cfg->needs_warm_reset)
8155 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8156 else
8157 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8158 IPR_SHUTDOWN_NONE);
f8a88b19
LV		 8159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8160 return PCI_ERS_RESULT_RECOVERED;
8161}
8162
8163/**
8164 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8165 * @pdev: PCI device struct
8166 *
8167 * Description: This routine is called when the PCI bus has
8168 * permanently failed.
8169 */
8170static void ipr_pci_perm_failure(struct pci_dev *pdev)
8171{
8172 unsigned long flags = 0;
8173 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8174
8175 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8176 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8177 ioa_cfg->sdt_state = ABORT_DUMP;
8178 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8179 ioa_cfg->in_ioa_bringdown = 1;
6ff63896 8180 ioa_cfg->allow_cmds = 0;
f8a88b19
LV		 8181 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8183}
8184
8185/**
8186 * ipr_pci_error_detected - Called when a PCI error is detected.
8187 * @pdev: PCI device struct
8188 * @state: PCI channel state
8189 *
8190 * Description: Called when a PCI error is detected.
8191 *
8192 * Return value:
8193 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8194 */
8195static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8196 pci_channel_state_t state)
8197{
8198 switch (state) {
8199 case pci_channel_io_frozen:
8200 ipr_pci_frozen(pdev);
8201 return PCI_ERS_RESULT_NEED_RESET;
8202 case pci_channel_io_perm_failure:
8203 ipr_pci_perm_failure(pdev);
8204 return PCI_ERS_RESULT_DISCONNECT;
8205 break;
8206 default:
8207 break;
8208 }
8209 return PCI_ERS_RESULT_NEED_RESET;
8210}
8211
1da177e4
LT		 8212/**
8213 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8214 * @ioa_cfg: ioa cfg struct
8215 *
8216 * Description: This is the second phase of adapter intialization
8217 * This function takes care of initilizing the adapter to the point
8218 * where it can accept new commands.
8219
8220 * Return value:
b1c11812 8221 * 0 on success / -EIO on failure
1da177e4
LT		 8222 **/
8223static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8224{
8225 int rc = 0;
8226 unsigned long host_lock_flags = 0;
8227
8228 ENTER;
8229 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8230 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
ce155cce
BK		 8231 if (ioa_cfg->needs_hard_reset) {
8232 ioa_cfg->needs_hard_reset = 0;
8233 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8234 } else
8235 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8236 IPR_SHUTDOWN_NONE);
1da177e4
LT		 8237
8238 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8239 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8240 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8241
8242 if (ioa_cfg->ioa_is_dead) {
8243 rc = -EIO;
8244 } else if (ipr_invalid_adapter(ioa_cfg)) {
8245 if (!ipr_testmode)
8246 rc = -EIO;
8247
8248 dev_err(&ioa_cfg->pdev->dev,
8249 "Adapter not supported in this hardware configuration.\n");
8250 }
8251
8252 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8253
8254 LEAVE;
8255 return rc;
8256}
8257
8258/**
8259 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8260 * @ioa_cfg: ioa config struct
8261 *
8262 * Return value:
8263 * none
8264 **/
8265static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8266{
8267 int i;
8268
8269 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8270 if (ioa_cfg->ipr_cmnd_list[i])
8271 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8272 ioa_cfg->ipr_cmnd_list[i],
8273 ioa_cfg->ipr_cmnd_list_dma[i]);
8274
8275 ioa_cfg->ipr_cmnd_list[i] = NULL;
8276 }
8277
8278 if (ioa_cfg->ipr_cmd_pool)
8279 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8280
8281 ioa_cfg->ipr_cmd_pool = NULL;
8282}
8283
8284/**
8285 * ipr_free_mem - Frees memory allocated for an adapter
8286 * @ioa_cfg: ioa cfg struct
8287 *
8288 * Return value:
8289 * nothing
8290 **/
8291static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8292{
8293 int i;
8294
8295 kfree(ioa_cfg->res_entries);
8296 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8297 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8298 ipr_free_cmd_blks(ioa_cfg);
8299 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8300 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
3e7ebdfa
WB		 8301 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8302 ioa_cfg->u.cfg_table,
1da177e4
LT		 8303 ioa_cfg->cfg_table_dma);
8304
8305 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8306 pci_free_consistent(ioa_cfg->pdev,
8307 sizeof(struct ipr_hostrcb),
8308 ioa_cfg->hostrcb[i],
8309 ioa_cfg->hostrcb_dma[i]);
8310 }
8311
8312 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8313 kfree(ioa_cfg->trace);
8314}
8315
8316/**
8317 * ipr_free_all_resources - Free all allocated resources for an adapter.
8318 * @ipr_cmd: ipr command struct
8319 *
8320 * This function frees all allocated resources for the
8321 * specified adapter.
8322 *
8323 * Return value:
8324 * none
8325 **/
8326static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8327{
8328 struct pci_dev *pdev = ioa_cfg->pdev;
8329
8330 ENTER;
8331 free_irq(pdev->irq, ioa_cfg);
5a9ef25b 8332 pci_disable_msi(pdev);
1da177e4
LT		 8333 iounmap(ioa_cfg->hdw_dma_regs);
8334 pci_release_regions(pdev);
8335 ipr_free_mem(ioa_cfg);
8336 scsi_host_put(ioa_cfg->host);
8337 pci_disable_device(pdev);
8338 LEAVE;
8339}
8340
8341/**
8342 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8343 * @ioa_cfg: ioa config struct
8344 *
8345 * Return value:
8346 * 0 on success / -ENOMEM on allocation failure
8347 **/
8348static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8349{
8350 struct ipr_cmnd *ipr_cmd;
8351 struct ipr_ioarcb *ioarcb;
8352 dma_addr_t dma_addr;
8353 int i;
8354
8355 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
a32c055f 8356 sizeof(struct ipr_cmnd), 16, 0);
1da177e4
LT		 8357
8358 if (!ioa_cfg->ipr_cmd_pool)
8359 return -ENOMEM;
8360
8361 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
e94b1766 8362 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 8363
8364 if (!ipr_cmd) {
8365 ipr_free_cmd_blks(ioa_cfg);
8366 return -ENOMEM;
8367 }
8368
8369 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8370 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8371 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8372
8373 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 8374 ipr_cmd->dma_addr = dma_addr;
8375 if (ioa_cfg->sis64)
8376 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8377 else
8378 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8379
1da177e4 8380 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 8381 if (ioa_cfg->sis64) {
8382 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8383 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8384 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 8385 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 8386 } else {
8387 ioarcb->write_ioadl_addr =
8388 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8389 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8390 ioarcb->ioasa_host_pci_addr =
96d21f00 8391 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 8392 }
1da177e4
LT		 8393 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8394 ipr_cmd->cmd_index = i;
8395 ipr_cmd->ioa_cfg = ioa_cfg;
8396 ipr_cmd->sense_buffer_dma = dma_addr +
8397 offsetof(struct ipr_cmnd, sense_buffer);
8398
8399 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8400 }
8401
8402 return 0;
8403}
8404
8405/**
8406 * ipr_alloc_mem - Allocate memory for an adapter
8407 * @ioa_cfg: ioa config struct
8408 *
8409 * Return value:
8410 * 0 on success / non-zero for error
8411 **/
8412static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8413{
8414 struct pci_dev *pdev = ioa_cfg->pdev;
8415 int i, rc = -ENOMEM;
8416
8417 ENTER;
0bc42e35 8418 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 8419 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 8420
8421 if (!ioa_cfg->res_entries)
8422 goto out;
8423
3e7ebdfa
WB		 8424 if (ioa_cfg->sis64) {
8425 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8426 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8427 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8428 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8429 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8430 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8431 }
8432
8433 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 8434 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 8435 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8436 }
1da177e4
LT		 8437
8438 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8439 sizeof(struct ipr_misc_cbs),
8440 &ioa_cfg->vpd_cbs_dma);
8441
8442 if (!ioa_cfg->vpd_cbs)
8443 goto out_free_res_entries;
8444
8445 if (ipr_alloc_cmd_blks(ioa_cfg))
8446 goto out_free_vpd_cbs;
8447
8448 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8449 sizeof(u32) * IPR_NUM_CMD_BLKS,
8450 &ioa_cfg->host_rrq_dma);
8451
8452 if (!ioa_cfg->host_rrq)
8453 goto out_ipr_free_cmd_blocks;
8454
3e7ebdfa
WB		 8455 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8456 ioa_cfg->cfg_table_size,
8457 &ioa_cfg->cfg_table_dma);
1da177e4 8458
3e7ebdfa 8459 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 8460 goto out_free_host_rrq;
8461
8462 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8463 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8464 sizeof(struct ipr_hostrcb),
8465 &ioa_cfg->hostrcb_dma[i]);
8466
8467 if (!ioa_cfg->hostrcb[i])
8468 goto out_free_hostrcb_dma;
8469
8470 ioa_cfg->hostrcb[i]->hostrcb_dma =
8471 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 8472 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 8473 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8474 }
8475
0bc42e35 8476 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 8477 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8478
8479 if (!ioa_cfg->trace)
8480 goto out_free_hostrcb_dma;
8481
1da177e4
LT		 8482 rc = 0;
8483out:
8484 LEAVE;
8485 return rc;
8486
8487out_free_hostrcb_dma:
8488 while (i-- > 0) {
8489 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8490 ioa_cfg->hostrcb[i],
8491 ioa_cfg->hostrcb_dma[i]);
8492 }
3e7ebdfa
WB		 8493 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8494 ioa_cfg->u.cfg_table,
8495 ioa_cfg->cfg_table_dma);
1da177e4
LT		 8496out_free_host_rrq:
8497 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8498 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8499out_ipr_free_cmd_blocks:
8500 ipr_free_cmd_blks(ioa_cfg);
8501out_free_vpd_cbs:
8502 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8503 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8504out_free_res_entries:
8505 kfree(ioa_cfg->res_entries);
8506 goto out;
8507}
8508
8509/**
8510 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8511 * @ioa_cfg: ioa config struct
8512 *
8513 * Return value:
8514 * none
8515 **/
8516static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8517{
8518 int i;
8519
8520 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8521 ioa_cfg->bus_attr[i].bus = i;
8522 ioa_cfg->bus_attr[i].qas_enabled = 0;
8523 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8524 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8525 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8526 else
8527 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8528 }
8529}
8530
8531/**
8532 * ipr_init_ioa_cfg - Initialize IOA config struct
8533 * @ioa_cfg: ioa config struct
8534 * @host: scsi host struct
8535 * @pdev: PCI dev struct
8536 *
8537 * Return value:
8538 * none
8539 **/
8540static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8541 struct Scsi_Host *host, struct pci_dev *pdev)
8542{
8543 const struct ipr_interrupt_offsets *p;
8544 struct ipr_interrupts *t;
8545 void __iomem *base;
8546
8547 ioa_cfg->host = host;
8548 ioa_cfg->pdev = pdev;
8549 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 8550 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 8551 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8552 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8553 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8554 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8555 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8556 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8557 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8558 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8559
8560 INIT_LIST_HEAD(&ioa_cfg->free_q);
8561 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8562 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8563 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8564 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8565 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 8566 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 8567 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 8568 init_waitqueue_head(&ioa_cfg->msi_wait_q);
1da177e4
LT		 8569 ioa_cfg->sdt_state = INACTIVE;
8570
8571 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 8572 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 8573
3e7ebdfa
WB		 8574 if (ioa_cfg->sis64) {
8575 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8576 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8577 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8578 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8579 } else {
8580 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8581 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8582 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8583 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8584 }
1da177e4
LT		 8585 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8586 host->unique_id = host->host_no;
8587 host->max_cmd_len = IPR_MAX_CDB_LEN;
8588 pci_set_drvdata(pdev, ioa_cfg);
8589
8590 p = &ioa_cfg->chip_cfg->regs;
8591 t = &ioa_cfg->regs;
8592 base = ioa_cfg->hdw_dma_regs;
8593
8594 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8595 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
214777ba 8596 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
1da177e4 8597 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
214777ba 8598 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
1da177e4 8599 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
214777ba 8600 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
1da177e4 8601 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
214777ba 8602 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
1da177e4
LT		 8603 t->ioarrin_reg = base + p->ioarrin_reg;
8604 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
214777ba 8605 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
1da177e4 8606 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
214777ba 8607 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
1da177e4 8608 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
214777ba 8609 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
dcbad00e
WB		 8610
8611 if (ioa_cfg->sis64) {
214777ba 8612 t->init_feedback_reg = base + p->init_feedback_reg;
dcbad00e
WB		 8613 t->dump_addr_reg = base + p->dump_addr_reg;
8614 t->dump_data_reg = base + p->dump_data_reg;
8701f185 8615 t->endian_swap_reg = base + p->endian_swap_reg;
dcbad00e 8616 }
1da177e4
LT		 8617}
8618
8619/**
1be7bd82 8620 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 8621 * @dev_id: PCI device id struct
8622 *
8623 * Return value:
1be7bd82 8624 * ptr to chip information on success / NULL on failure
1da177e4 8625 **/
1be7bd82
WB		 8626static const struct ipr_chip_t * __devinit
8627ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 8628{
8629 int i;
8630
1da177e4
LT		 8631 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8632 if (ipr_chip[i].vendor == dev_id->vendor &&
8633 ipr_chip[i].device == dev_id->device)
1be7bd82 8634 return &ipr_chip[i];
1da177e4
LT		 8635 return NULL;
8636}
8637
95fecd90
WB		 8638/**
8639 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8640 * @pdev: PCI device struct
8641 *
8642 * Description: Simply set the msi_received flag to 1 indicating that
8643 * Message Signaled Interrupts are supported.
8644 *
8645 * Return value:
8646 * 0 on success / non-zero on failure
8647 **/
8648static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8649{
8650 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8651 unsigned long lock_flags = 0;
8652 irqreturn_t rc = IRQ_HANDLED;
8653
8654 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8655
8656 ioa_cfg->msi_received = 1;
8657 wake_up(&ioa_cfg->msi_wait_q);
8658
8659 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8660 return rc;
8661}
8662
8663/**
8664 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8665 * @pdev: PCI device struct
8666 *
8667 * Description: The return value from pci_enable_msi() can not always be
8668 * trusted. This routine sets up and initiates a test interrupt to determine
8669 * if the interrupt is received via the ipr_test_intr() service routine.
8670 * If the tests fails, the driver will fall back to LSI.
8671 *
8672 * Return value:
8673 * 0 on success / non-zero on failure
8674 **/
8675static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8676 struct pci_dev *pdev)
8677{
8678 int rc;
8679 volatile u32 int_reg;
8680 unsigned long lock_flags = 0;
8681
8682 ENTER;
8683
8684 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8685 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8686 ioa_cfg->msi_received = 0;
8687 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 8688 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 8689 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8691
8692 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8693 if (rc) {
8694 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8695 return rc;
8696 } else if (ipr_debug)
8697 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8698
214777ba 8699 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 8700 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8701 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8702 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8703
8704 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8705 if (!ioa_cfg->msi_received) {
8706 /* MSI test failed */
8707 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8708 rc = -EOPNOTSUPP;
8709 } else if (ipr_debug)
8710 dev_info(&pdev->dev, "MSI test succeeded.\n");
8711
8712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8713
8714 free_irq(pdev->irq, ioa_cfg);
8715
8716 LEAVE;
8717
8718 return rc;
8719}
8720
1da177e4
LT		 8721/**
8722 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8723 * @pdev: PCI device struct
8724 * @dev_id: PCI device id struct
8725 *
8726 * Return value:
8727 * 0 on success / non-zero on failure
8728 **/
8729static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8730 const struct pci_device_id *dev_id)
8731{
8732 struct ipr_ioa_cfg *ioa_cfg;
8733 struct Scsi_Host *host;
8734 unsigned long ipr_regs_pci;
8735 void __iomem *ipr_regs;
a2a65a3e 8736 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 8737 volatile u32 mask, uproc, interrupts;
1da177e4
LT		 8738
8739 ENTER;
8740
8741 if ((rc = pci_enable_device(pdev))) {
8742 dev_err(&pdev->dev, "Cannot enable adapter\n");
8743 goto out;
8744 }
8745
8746 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8747
8748 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8749
8750 if (!host) {
8751 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8752 rc = -ENOMEM;
8753 goto out_disable;
8754 }
8755
8756 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8757 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
35a39691
BK		 8758 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8759 sata_port_info.flags, &ipr_sata_ops);
1da177e4 8760
1be7bd82 8761 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 8762
1be7bd82 8763 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 8764 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8765 dev_id->vendor, dev_id->device);
8766 goto out_scsi_host_put;
8767 }
8768
a32c055f
WB		 8769 /* set SIS 32 or SIS 64 */
8770 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82
WB		 8771 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8772
5469cb5b
BK		 8773 if (ipr_transop_timeout)
8774 ioa_cfg->transop_timeout = ipr_transop_timeout;
8775 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8776 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8777 else
8778 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8779
44c10138 8780 ioa_cfg->revid = pdev->revision;
463fc696 8781
1da177e4
LT		 8782 ipr_regs_pci = pci_resource_start(pdev, 0);
8783
8784 rc = pci_request_regions(pdev, IPR_NAME);
8785 if (rc < 0) {
8786 dev_err(&pdev->dev,
8787 "Couldn't register memory range of registers\n");
8788 goto out_scsi_host_put;
8789 }
8790
25729a7f 8791 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 8792
8793 if (!ipr_regs) {
8794 dev_err(&pdev->dev,
8795 "Couldn't map memory range of registers\n");
8796 rc = -ENOMEM;
8797 goto out_release_regions;
8798 }
8799
8800 ioa_cfg->hdw_dma_regs = ipr_regs;
8801 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8802 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8803
8804 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8805
8806 pci_set_master(pdev);
8807
a32c055f
WB		 8808 if (ioa_cfg->sis64) {
8809 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8810 if (rc < 0) {
8811 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8812 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8813 }
8814
8815 } else
8816 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8817
1da177e4
LT		 8818 if (rc < 0) {
8819 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8820 goto cleanup_nomem;
8821 }
8822
8823 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8824 ioa_cfg->chip_cfg->cache_line_size);
8825
8826 if (rc != PCIBIOS_SUCCESSFUL) {
8827 dev_err(&pdev->dev, "Write of cache line size failed\n");
8828 rc = -EIO;
8829 goto cleanup_nomem;
8830 }
8831
95fecd90 8832 /* Enable MSI style interrupts if they are supported. */
1be7bd82 8833 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
95fecd90
WB		 8834 rc = ipr_test_msi(ioa_cfg, pdev);
8835 if (rc == -EOPNOTSUPP)
8836 pci_disable_msi(pdev);
8837 else if (rc)
8838 goto out_msi_disable;
8839 else
8840 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8841 } else if (ipr_debug)
8842 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8843
1da177e4
LT		 8844 /* Save away PCI config space for use following IOA reset */
8845 rc = pci_save_state(pdev);
8846
8847 if (rc != PCIBIOS_SUCCESSFUL) {
8848 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8849 rc = -EIO;
f170c684 8850 goto out_msi_disable;
1da177e4
LT		 8851 }
8852
8853 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 8854 goto out_msi_disable;
1da177e4
LT		 8855
8856 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 8857 goto out_msi_disable;
1da177e4 8858
3e7ebdfa
WB		 8859 if (ioa_cfg->sis64)
8860 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8861 + ((sizeof(struct ipr_config_table_entry64)
8862 * ioa_cfg->max_devs_supported)));
8863 else
8864 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8865 + ((sizeof(struct ipr_config_table_entry)
8866 * ioa_cfg->max_devs_supported)));
8867
1da177e4
LT		 8868 rc = ipr_alloc_mem(ioa_cfg);
8869 if (rc < 0) {
8870 dev_err(&pdev->dev,
8871 "Couldn't allocate enough memory for device driver!\n");
f170c684 8872 goto out_msi_disable;
1da177e4
LT		 8873 }
8874
ce155cce
BK		 8875 /*
8876 * If HRRQ updated interrupt is not masked, or reset alert is set,
8877 * the card is in an unknown state and needs a hard reset
8878 */
214777ba
WB		 8879 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8880 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8881 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 8882 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8883 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 8884 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 8885 ioa_cfg->needs_hard_reset = 1;
8886 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8887 ioa_cfg->ioa_unit_checked = 1;
ce155cce 8888
1da177e4 8889 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
95fecd90
WB		 8890 rc = request_irq(pdev->irq, ipr_isr,
8891 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8892 IPR_NAME, ioa_cfg);
1da177e4
LT		 8893
8894 if (rc) {
8895 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8896 pdev->irq, rc);
8897 goto cleanup_nolog;
8898 }
8899
463fc696
BK		 8900 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8901 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8902 ioa_cfg->needs_warm_reset = 1;
8903 ioa_cfg->reset = ipr_reset_slot_reset;
8904 } else
8905 ioa_cfg->reset = ipr_reset_start_bist;
8906
1da177e4
LT		 8907 spin_lock(&ipr_driver_lock);
8908 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8909 spin_unlock(&ipr_driver_lock);
8910
8911 LEAVE;
8912out:
8913 return rc;
8914
8915cleanup_nolog:
8916 ipr_free_mem(ioa_cfg);
95fecd90
WB		 8917out_msi_disable:
8918 pci_disable_msi(pdev);
f170c684
JL		 8919cleanup_nomem:
8920 iounmap(ipr_regs);
1da177e4
LT		 8921out_release_regions:
8922 pci_release_regions(pdev);
8923out_scsi_host_put:
8924 scsi_host_put(host);
8925out_disable:
8926 pci_disable_device(pdev);
8927 goto out;
8928}
8929
8930/**
8931 * ipr_scan_vsets - Scans for VSET devices
8932 * @ioa_cfg: ioa config struct
8933 *
8934 * Description: Since the VSET resources do not follow SAM in that we can have
8935 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8936 *
8937 * Return value:
8938 * none
8939 **/
8940static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8941{
8942 int target, lun;
8943
8944 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8945 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8946 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8947}
8948
8949/**
8950 * ipr_initiate_ioa_bringdown - Bring down an adapter
8951 * @ioa_cfg: ioa config struct
8952 * @shutdown_type: shutdown type
8953 *
8954 * Description: This function will initiate bringing down the adapter.
8955 * This consists of issuing an IOA shutdown to the adapter
8956 * to flush the cache, and running BIST.
8957 * If the caller needs to wait on the completion of the reset,
8958 * the caller must sleep on the reset_wait_q.
8959 *
8960 * Return value:
8961 * none
8962 **/
8963static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8964 enum ipr_shutdown_type shutdown_type)
8965{
8966 ENTER;
8967 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8968 ioa_cfg->sdt_state = ABORT_DUMP;
8969 ioa_cfg->reset_retries = 0;
8970 ioa_cfg->in_ioa_bringdown = 1;
8971 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8972 LEAVE;
8973}
8974
8975/**
8976 * __ipr_remove - Remove a single adapter
8977 * @pdev: pci device struct
8978 *
8979 * Adapter hot plug remove entry point.
8980 *
8981 * Return value:
8982 * none
8983 **/
8984static void __ipr_remove(struct pci_dev *pdev)
8985{
8986 unsigned long host_lock_flags = 0;
8987 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8988 ENTER;
8989
8990 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
970ea294
BK		 8991 while(ioa_cfg->in_reset_reload) {
8992 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8993 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8994 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8995 }
8996
1da177e4
LT		 8997 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8998
8999 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9000 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
a684b8da 9001 flush_work_sync(&ioa_cfg->work_q);
1da177e4
LT		 9002 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9003
9004 spin_lock(&ipr_driver_lock);
9005 list_del(&ioa_cfg->queue);
9006 spin_unlock(&ipr_driver_lock);
9007
9008 if (ioa_cfg->sdt_state == ABORT_DUMP)
9009 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9010 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9011
9012 ipr_free_all_resources(ioa_cfg);
9013
9014 LEAVE;
9015}
9016
9017/**
9018 * ipr_remove - IOA hot plug remove entry point
9019 * @pdev: pci device struct
9020 *
9021 * Adapter hot plug remove entry point.
9022 *
9023 * Return value:
9024 * none
9025 **/
f381642d 9026static void __devexit ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 9027{
9028 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9029
9030 ENTER;
9031
ee959b00 9032 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 9033 &ipr_trace_attr);
ee959b00 9034 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9035 &ipr_dump_attr);
9036 scsi_remove_host(ioa_cfg->host);
9037
9038 __ipr_remove(pdev);
9039
9040 LEAVE;
9041}
9042
9043/**
9044 * ipr_probe - Adapter hot plug add entry point
9045 *
9046 * Return value:
9047 * 0 on success / non-zero on failure
9048 **/
9049static int __devinit ipr_probe(struct pci_dev *pdev,
9050 const struct pci_device_id *dev_id)
9051{
9052 struct ipr_ioa_cfg *ioa_cfg;
9053 int rc;
9054
9055 rc = ipr_probe_ioa(pdev, dev_id);
9056
9057 if (rc)
9058 return rc;
9059
9060 ioa_cfg = pci_get_drvdata(pdev);
9061 rc = ipr_probe_ioa_part2(ioa_cfg);
9062
9063 if (rc) {
9064 __ipr_remove(pdev);
9065 return rc;
9066 }
9067
9068 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9069
9070 if (rc) {
9071 __ipr_remove(pdev);
9072 return rc;
9073 }
9074
ee959b00 9075 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9076 &ipr_trace_attr);
9077
9078 if (rc) {
9079 scsi_remove_host(ioa_cfg->host);
9080 __ipr_remove(pdev);
9081 return rc;
9082 }
9083
ee959b00 9084 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9085 &ipr_dump_attr);
9086
9087 if (rc) {
ee959b00 9088 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9089 &ipr_trace_attr);
9090 scsi_remove_host(ioa_cfg->host);
9091 __ipr_remove(pdev);
9092 return rc;
9093 }
9094
9095 scsi_scan_host(ioa_cfg->host);
9096 ipr_scan_vsets(ioa_cfg);
9097 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9098 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 9099 ioa_cfg->host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9100 schedule_work(&ioa_cfg->work_q);
9101 return 0;
9102}
9103
9104/**
9105 * ipr_shutdown - Shutdown handler.
d18c3db5 9106 * @pdev: pci device struct
1da177e4
LT		 9107 *
9108 * This function is invoked upon system shutdown/reboot. It will issue
9109 * an adapter shutdown to the adapter to flush the write cache.
9110 *
9111 * Return value:
9112 * none
9113 **/
d18c3db5 9114static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 9115{
d18c3db5 9116 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4
LT		 9117 unsigned long lock_flags = 0;
9118
9119 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 9120 while(ioa_cfg->in_reset_reload) {
9121 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9122 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9123 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9124 }
9125
1da177e4
LT		 9126 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9128 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9129}
9130
9131static struct pci_device_id ipr_pci_table[] __devinitdata = {
9132 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9133 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 9134 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9135 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 9136 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9137 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 9138 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9139 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 9140 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9141 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 9142 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9143 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 9144 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9145 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 9146 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 9147 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9148 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9149 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 9150 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9151 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 9152 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9153 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9154 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 9155 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9156 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9157 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 9158 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9159 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 9160 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9161 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 9162 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 9163 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9164 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 9165 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 9166 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9167 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 9168 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9169 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 9170 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9171 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 9172 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 9173 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 9174 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 9175 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 9176 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 9177 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 9178 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 9179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9180 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9181 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9182 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9183 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9184 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 9185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9186 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9187 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9188 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9189 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9190 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
5a918353
WB		 9191 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9192 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 9193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9194 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 9195 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9196 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 9197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9198 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 9199 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9200 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 9201 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9202 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
9203 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9204 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
1da177e4
LT		 9205 { }
9206};
9207MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9208
f8a88b19
LV		 9209static struct pci_error_handlers ipr_err_handler = {
9210 .error_detected = ipr_pci_error_detected,
9211 .slot_reset = ipr_pci_slot_reset,
9212};
9213
1da177e4
LT		 9214static struct pci_driver ipr_driver = {
9215 .name = IPR_NAME,
9216 .id_table = ipr_pci_table,
9217 .probe = ipr_probe,
f381642d 9218 .remove = __devexit_p(ipr_remove),
d18c3db5 9219 .shutdown = ipr_shutdown,
f8a88b19 9220 .err_handler = &ipr_err_handler,
1da177e4
LT		 9221};
9222
f72919ec
WB		 9223/**
9224 * ipr_halt_done - Shutdown prepare completion
9225 *
9226 * Return value:
9227 * none
9228 **/
9229static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9230{
9231 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9232
9233 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9234}
9235
9236/**
9237 * ipr_halt - Issue shutdown prepare to all adapters
9238 *
9239 * Return value:
9240 * NOTIFY_OK on success / NOTIFY_DONE on failure
9241 **/
9242static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9243{
9244 struct ipr_cmnd *ipr_cmd;
9245 struct ipr_ioa_cfg *ioa_cfg;
9246 unsigned long flags = 0;
9247
9248 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9249 return NOTIFY_DONE;
9250
9251 spin_lock(&ipr_driver_lock);
9252
9253 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9254 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9255 if (!ioa_cfg->allow_cmds) {
9256 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9257 continue;
9258 }
9259
9260 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9261 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9262 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9263 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9264 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9265
9266 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9267 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9268 }
9269 spin_unlock(&ipr_driver_lock);
9270
9271 return NOTIFY_OK;
9272}
9273
9274static struct notifier_block ipr_notifier = {
9275 ipr_halt, NULL, 0
9276};
9277
1da177e4
LT		 9278/**
9279 * ipr_init - Module entry point
9280 *
9281 * Return value:
9282 * 0 on success / negative value on failure
9283 **/
9284static int __init ipr_init(void)
9285{
9286 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9287 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9288
f72919ec 9289 register_reboot_notifier(&ipr_notifier);
dcbccbde 9290 return pci_register_driver(&ipr_driver);
1da177e4
LT		 9291}
9292
9293/**
9294 * ipr_exit - Module unload
9295 *
9296 * Module unload entry point.
9297 *
9298 * Return value:
9299 * none
9300 **/
9301static void __exit ipr_exit(void)
9302{
f72919ec 9303 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 9304 pci_unregister_driver(&ipr_driver);
9305}
9306
9307module_init(ipr_init);
9308module_exit(ipr_exit);
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