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[SCSI] ipr: fix lun assignment and comparison
[deliverable/linux.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
1da177e4
LT		 63#include <linux/ioport.h>
64#include <linux/delay.h>
65#include <linux/pci.h>
66#include <linux/wait.h>
67#include <linux/spinlock.h>
68#include <linux/sched.h>
69#include <linux/interrupt.h>
70#include <linux/blkdev.h>
71#include <linux/firmware.h>
72#include <linux/module.h>
73#include <linux/moduleparam.h>
35a39691 74#include <linux/libata.h>
0ce3a7e5 75#include <linux/hdreg.h>
f72919ec 76#include <linux/reboot.h>
3e7ebdfa 77#include <linux/stringify.h>
1da177e4
LT		 78#include <asm/io.h>
79#include <asm/irq.h>
80#include <asm/processor.h>
81#include <scsi/scsi.h>
82#include <scsi/scsi_host.h>
83#include <scsi/scsi_tcq.h>
84#include <scsi/scsi_eh.h>
85#include <scsi/scsi_cmnd.h>
1da177e4
LT		 86#include "ipr.h"
87
88/*
89 * Global Data
90 */
b7d68ca3 91static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 92static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
93static unsigned int ipr_max_speed = 1;
94static int ipr_testmode = 0;
95static unsigned int ipr_fastfail = 0;
5469cb5b 96static unsigned int ipr_transop_timeout = 0;
d3c74871 97static unsigned int ipr_debug = 0;
3e7ebdfa 98static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 99static unsigned int ipr_dual_ioa_raid = 1;
1da177e4
LT		 100static DEFINE_SPINLOCK(ipr_driver_lock);
101
102/* This table describes the differences between DMA controller chips */
103static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4
LT		 105 .mailbox = 0x0042C,
106 .cache_line_size = 0x20,
107 {
108 .set_interrupt_mask_reg = 0x0022C,
109 .clr_interrupt_mask_reg = 0x00230,
214777ba 110 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 111 .sense_interrupt_mask_reg = 0x0022C,
214777ba 112 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 113 .clr_interrupt_reg = 0x00228,
214777ba 114 .clr_interrupt_reg32 = 0x00228,
1da177e4 115 .sense_interrupt_reg = 0x00224,
214777ba 116 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 117 .ioarrin_reg = 0x00404,
118 .sense_uproc_interrupt_reg = 0x00214,
214777ba 119 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 120 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 121 .set_uproc_interrupt_reg32 = 0x00214,
122 .clr_uproc_interrupt_reg = 0x00218,
123 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 124 }
125 },
126 { /* Snipe and Scamp */
127 .mailbox = 0x0052C,
128 .cache_line_size = 0x20,
129 {
130 .set_interrupt_mask_reg = 0x00288,
131 .clr_interrupt_mask_reg = 0x0028C,
214777ba 132 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 133 .sense_interrupt_mask_reg = 0x00288,
214777ba 134 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 135 .clr_interrupt_reg = 0x00284,
214777ba 136 .clr_interrupt_reg32 = 0x00284,
1da177e4 137 .sense_interrupt_reg = 0x00280,
214777ba 138 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 139 .ioarrin_reg = 0x00504,
140 .sense_uproc_interrupt_reg = 0x00290,
214777ba 141 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 142 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 143 .set_uproc_interrupt_reg32 = 0x00290,
144 .clr_uproc_interrupt_reg = 0x00294,
145 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 146 }
147 },
a74c1639
WB		 148 { /* CRoC */
149 .mailbox = 0x00040,
150 .cache_line_size = 0x20,
151 {
152 .set_interrupt_mask_reg = 0x00010,
153 .clr_interrupt_mask_reg = 0x00018,
214777ba 154 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 155 .sense_interrupt_mask_reg = 0x00010,
214777ba 156 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 157 .clr_interrupt_reg = 0x00008,
214777ba 158 .clr_interrupt_reg32 = 0x0000C,
a74c1639 159 .sense_interrupt_reg = 0x00000,
214777ba 160 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 161 .ioarrin_reg = 0x00070,
162 .sense_uproc_interrupt_reg = 0x00020,
214777ba 163 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 164 .set_uproc_interrupt_reg = 0x00020,
214777ba 165 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 166 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 167 .clr_uproc_interrupt_reg32 = 0x0002C,
168 .init_feedback_reg = 0x0005C,
dcbad00e 169 .dump_addr_reg = 0x00064,
8701f185
WB		 170 .dump_data_reg = 0x00068,
171 .endian_swap_reg = 0x00084
a74c1639
WB		 172 }
173 },
1da177e4
LT		 174};
175
176static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 177 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 186};
187
188static int ipr_max_bus_speeds [] = {
189 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
190};
191
192MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
193MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
194module_param_named(max_speed, ipr_max_speed, uint, 0);
195MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
196module_param_named(log_level, ipr_log_level, uint, 0);
197MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
198module_param_named(testmode, ipr_testmode, int, 0);
199MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 200module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 201MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
202module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
203MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 204module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 205MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 206module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
207MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 208module_param_named(max_devs, ipr_max_devs, int, 0);
209MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
210 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
1da177e4
LT		 211MODULE_LICENSE("GPL");
212MODULE_VERSION(IPR_DRIVER_VERSION);
213
1da177e4
LT		 214/* A constant array of IOASCs/URCs/Error Messages */
215static const
216struct ipr_error_table_t ipr_error_table[] = {
933916f3 217 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 218 "8155: An unknown error was received"},
219 {0x00330000, 0, 0,
220 "Soft underlength error"},
221 {0x005A0000, 0, 0,
222 "Command to be cancelled not found"},
223 {0x00808000, 0, 0,
224 "Qualified success"},
933916f3 225 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 226 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 227 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 228 "4101: Soft device bus fabric error"},
5aa3a333
WB		 229 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
230 "FFFC: Logical block guard error recovered by the device"},
231 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
232 "FFFC: Logical block reference tag error recovered by the device"},
233 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
234 "4171: Recovered scatter list tag / sequence number error"},
235 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
236 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
237 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
239 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "FFFD: Recovered logical block reference tag error detected by the IOA"},
241 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
242 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 243 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 244 "FFF9: Device sector reassign successful"},
933916f3 245 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 246 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 247 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 248 "7001: IOA sector reassignment successful"},
933916f3 249 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 250 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 251 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 252 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 253 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 254 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 255 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 256 "FFF6: Device hardware error recovered by the IOA"},
933916f3 257 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 258 "FFF6: Device hardware error recovered by the device"},
933916f3 259 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 260 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 261 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 262 "FFFA: Undefined device response recovered by the IOA"},
933916f3 263 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 264 "FFF6: Device bus error, message or command phase"},
933916f3 265 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 266 "FFFE: Task Management Function failed"},
933916f3 267 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 268 "FFF6: Failure prediction threshold exceeded"},
933916f3 269 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 270 "8009: Impending cache battery pack failure"},
271 {0x02040400, 0, 0,
272 "34FF: Disk device format in progress"},
65f56475
BK		 273 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
274 "9070: IOA requested reset"},
1da177e4
LT		 275 {0x023F0000, 0, 0,
276 "Synchronization required"},
277 {0x024E0000, 0, 0,
278 "No ready, IOA shutdown"},
279 {0x025A0000, 0, 0,
280 "Not ready, IOA has been shutdown"},
933916f3 281 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 282 "3020: Storage subsystem configuration error"},
283 {0x03110B00, 0, 0,
284 "FFF5: Medium error, data unreadable, recommend reassign"},
285 {0x03110C00, 0, 0,
286 "7000: Medium error, data unreadable, do not reassign"},
933916f3 287 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 288 "FFF3: Disk media format bad"},
933916f3 289 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 290 "3002: Addressed device failed to respond to selection"},
933916f3 291 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 292 "3100: Device bus error"},
933916f3 293 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 294 "3109: IOA timed out a device command"},
295 {0x04088000, 0, 0,
296 "3120: SCSI bus is not operational"},
933916f3 297 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 298 "4100: Hard device bus fabric error"},
5aa3a333
WB		 299 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
300 "310C: Logical block guard error detected by the device"},
301 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
302 "310C: Logical block reference tag error detected by the device"},
303 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
304 "4170: Scatter list tag / sequence number error"},
305 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
306 "8150: Logical block CRC error on IOA to Host transfer"},
307 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
308 "4170: Logical block sequence number error on IOA to Host transfer"},
309 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
310 "310D: Logical block reference tag error detected by the IOA"},
311 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
312 "310D: Logical block guard error detected by the IOA"},
933916f3 313 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 314 "9000: IOA reserved area data check"},
933916f3 315 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 316 "9001: IOA reserved area invalid data pattern"},
933916f3 317 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 318 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 319 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
320 "Hardware Error, IOA metadata access error"},
933916f3 321 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 322 "102E: Out of alternate sectors for disk storage"},
933916f3 323 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 324 "FFF4: Data transfer underlength error"},
933916f3 325 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 326 "FFF4: Data transfer overlength error"},
933916f3 327 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 328 "3400: Logical unit failure"},
933916f3 329 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 330 "FFF4: Device microcode is corrupt"},
933916f3 331 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 332 "8150: PCI bus error"},
333 {0x04430000, 1, 0,
334 "Unsupported device bus message received"},
933916f3 335 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 336 "FFF4: Disk device problem"},
933916f3 337 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 338 "8150: Permanent IOA failure"},
933916f3 339 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 340 "3010: Disk device returned wrong response to IOA"},
933916f3 341 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 342 "8151: IOA microcode error"},
343 {0x04448500, 0, 0,
344 "Device bus status error"},
933916f3 345 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 346 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 347 {0x04448700, 0, 0,
348 "ATA device status error"},
1da177e4
LT		 349 {0x04490000, 0, 0,
350 "Message reject received from the device"},
933916f3 351 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 352 "8008: A permanent cache battery pack failure occurred"},
933916f3 353 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 354 "9090: Disk unit has been modified after the last known status"},
933916f3 355 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 356 "9081: IOA detected device error"},
933916f3 357 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 358 "9082: IOA detected device error"},
933916f3 359 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 360 "3110: Device bus error, message or command phase"},
933916f3 361 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 362 "3110: SAS Command / Task Management Function failed"},
933916f3 363 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 364 "9091: Incorrect hardware configuration change has been detected"},
933916f3 365 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 366 "9073: Invalid multi-adapter configuration"},
933916f3 367 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 368 "4010: Incorrect connection between cascaded expanders"},
933916f3 369 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 370 "4020: Connections exceed IOA design limits"},
933916f3 371 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 372 "4030: Incorrect multipath connection"},
933916f3 373 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 374 "4110: Unsupported enclosure function"},
933916f3 375 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 376 "FFF4: Command to logical unit failed"},
377 {0x05240000, 1, 0,
378 "Illegal request, invalid request type or request packet"},
379 {0x05250000, 0, 0,
380 "Illegal request, invalid resource handle"},
b0df54bb 381 {0x05258000, 0, 0,
382 "Illegal request, commands not allowed to this device"},
383 {0x05258100, 0, 0,
384 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 385 {0x05258200, 0, 0,
386 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 387 {0x05260000, 0, 0,
388 "Illegal request, invalid field in parameter list"},
389 {0x05260100, 0, 0,
390 "Illegal request, parameter not supported"},
391 {0x05260200, 0, 0,
392 "Illegal request, parameter value invalid"},
393 {0x052C0000, 0, 0,
394 "Illegal request, command sequence error"},
b0df54bb 395 {0x052C8000, 1, 0,
396 "Illegal request, dual adapter support not enabled"},
933916f3 397 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 398 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 399 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 400 "9040: Array protection temporarily suspended, protection resuming"},
933916f3 401 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 402 "3140: Device bus not ready to ready transition"},
933916f3 403 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 404 "FFFB: SCSI bus was reset"},
405 {0x06290500, 0, 0,
406 "FFFE: SCSI bus transition to single ended"},
407 {0x06290600, 0, 0,
408 "FFFE: SCSI bus transition to LVD"},
933916f3 409 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 410 "FFFB: SCSI bus was reset by another initiator"},
933916f3 411 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 412 "3029: A device replacement has occurred"},
933916f3 413 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 414 "9051: IOA cache data exists for a missing or failed device"},
933916f3 415 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 416 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 417 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 418 "9025: Disk unit is not supported at its physical location"},
933916f3 419 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 420 "3020: IOA detected a SCSI bus configuration error"},
933916f3 421 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 422 "3150: SCSI bus configuration error"},
933916f3 423 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 424 "9074: Asymmetric advanced function disk configuration"},
933916f3 425 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 426 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 427 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 428 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 429 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 430 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 431 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 432 "9076: Configuration error, missing remote IOA"},
933916f3 433 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 434 "4050: Enclosure does not support a required multipath function"},
b75424fc
WB		 435 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4070: Logically bad block written on device"},
933916f3 437 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 438 "9041: Array protection temporarily suspended"},
933916f3 439 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 440 "9042: Corrupt array parity detected on specified device"},
933916f3 441 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 442 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 443 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 444 "9071: Link operational transition"},
933916f3 445 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 446 "9072: Link not operational transition"},
933916f3 447 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 448 "9032: Array exposed but still protected"},
e435340c
BK		 449 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
450 "70DD: Device forced failed by disrupt device command"},
933916f3 451 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 452 "4061: Multipath redundancy level got better"},
933916f3 453 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 454 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 455 {0x07270000, 0, 0,
456 "Failure due to other device"},
933916f3 457 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 458 "9008: IOA does not support functions expected by devices"},
933916f3 459 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 460 "9010: Cache data associated with attached devices cannot be found"},
933916f3 461 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 462 "9011: Cache data belongs to devices other than those attached"},
933916f3 463 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 464 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 465 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 466 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 467 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 468 "9022: Exposed array is missing a required device"},
933916f3 469 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 470 "9023: Array member(s) not at required physical locations"},
933916f3 471 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 472 "9024: Array not functional due to present hardware configuration"},
933916f3 473 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 474 "9026: Array not functional due to present hardware configuration"},
933916f3 475 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 476 "9027: Array is missing a device and parity is out of sync"},
933916f3 477 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 478 "9028: Maximum number of arrays already exist"},
933916f3 479 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 480 "9050: Required cache data cannot be located for a disk unit"},
933916f3 481 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 482 "9052: Cache data exists for a device that has been modified"},
933916f3 483 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 484 "9054: IOA resources not available due to previous problems"},
933916f3 485 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 486 "9092: Disk unit requires initialization before use"},
933916f3 487 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 488 "9029: Incorrect hardware configuration change has been detected"},
933916f3 489 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 490 "9060: One or more disk pairs are missing from an array"},
933916f3 491 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 492 "9061: One or more disks are missing from an array"},
933916f3 493 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 494 "9062: One or more disks are missing from an array"},
933916f3 495 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 496 "9063: Maximum number of functional arrays has been exceeded"},
497 {0x0B260000, 0, 0,
498 "Aborted command, invalid descriptor"},
499 {0x0B5A0000, 0, 0,
500 "Command terminated by host"}
501};
502
503static const struct ipr_ses_table_entry ipr_ses_table[] = {
504 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
505 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
507 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
508 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
509 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
510 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
511 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
513 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
515 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
516 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
517};
518
519/*
520 * Function Prototypes
521 */
522static int ipr_reset_alert(struct ipr_cmnd *);
523static void ipr_process_ccn(struct ipr_cmnd *);
524static void ipr_process_error(struct ipr_cmnd *);
525static void ipr_reset_ioa_job(struct ipr_cmnd *);
526static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
527 enum ipr_shutdown_type);
528
529#ifdef CONFIG_SCSI_IPR_TRACE
530/**
531 * ipr_trc_hook - Add a trace entry to the driver trace
532 * @ipr_cmd: ipr command struct
533 * @type: trace type
534 * @add_data: additional data
535 *
536 * Return value:
537 * none
538 **/
539static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
540 u8 type, u32 add_data)
541{
542 struct ipr_trace_entry *trace_entry;
543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
544
545 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
546 trace_entry->time = jiffies;
547 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
548 trace_entry->type = type;
a32c055f
WB		 549 if (ipr_cmd->ioa_cfg->sis64)
550 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
551 else
552 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 553 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 554 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
555 trace_entry->u.add_data = add_data;
556}
557#else
558#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
559#endif
560
561/**
562 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
563 * @ipr_cmd: ipr command struct
564 *
565 * Return value:
566 * none
567 **/
568static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
569{
570 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 573 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 574
575 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 576 ioarcb->data_transfer_length = 0;
1da177e4 577 ioarcb->read_data_transfer_length = 0;
a32c055f 578 ioarcb->ioadl_len = 0;
1da177e4 579 ioarcb->read_ioadl_len = 0;
a32c055f 580
96d21f00 581 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 582 ioarcb->u.sis64_addr_data.data_ioadl_addr =
583 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 584 ioasa64->u.gata.status = 0;
585 } else {
a32c055f
WB		 586 ioarcb->write_ioadl_addr =
587 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
588 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 589 ioasa->u.gata.status = 0;
a32c055f
WB		 590 }
591
96d21f00
WB		 592 ioasa->hdr.ioasc = 0;
593 ioasa->hdr.residual_data_len = 0;
1da177e4 594 ipr_cmd->scsi_cmd = NULL;
35a39691 595 ipr_cmd->qc = NULL;
1da177e4
LT		 596 ipr_cmd->sense_buffer[0] = 0;
597 ipr_cmd->dma_use_sg = 0;
598}
599
600/**
601 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
602 * @ipr_cmd: ipr command struct
603 *
604 * Return value:
605 * none
606 **/
607static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
608{
609 ipr_reinit_ipr_cmnd(ipr_cmd);
610 ipr_cmd->u.scratch = 0;
611 ipr_cmd->sibling = NULL;
612 init_timer(&ipr_cmd->timer);
613}
614
615/**
616 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
617 * @ioa_cfg: ioa config struct
618 *
619 * Return value:
620 * pointer to ipr command struct
621 **/
622static
623struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
624{
625 struct ipr_cmnd *ipr_cmd;
626
627 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
628 list_del(&ipr_cmd->queue);
629 ipr_init_ipr_cmnd(ipr_cmd);
630
631 return ipr_cmd;
632}
633
1da177e4
LT		 634/**
635 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
636 * @ioa_cfg: ioa config struct
637 * @clr_ints: interrupts to clear
638 *
639 * This function masks all interrupts on the adapter, then clears the
640 * interrupts specified in the mask
641 *
642 * Return value:
643 * none
644 **/
645static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
646 u32 clr_ints)
647{
648 volatile u32 int_reg;
649
650 /* Stop new interrupts */
651 ioa_cfg->allow_interrupts = 0;
652
653 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 654 if (ioa_cfg->sis64)
655 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
656 else
657 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 658
659 /* Clear any pending interrupts */
214777ba
WB		 660 if (ioa_cfg->sis64)
661 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
662 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 663 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
664}
665
666/**
667 * ipr_save_pcix_cmd_reg - Save PCI-X command register
668 * @ioa_cfg: ioa config struct
669 *
670 * Return value:
671 * 0 on success / -EIO on failure
672 **/
673static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
674{
675 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
676
7dce0e1c
BK		 677 if (pcix_cmd_reg == 0)
678 return 0;
1da177e4
LT		 679
680 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
681 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
682 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
683 return -EIO;
684 }
685
686 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
687 return 0;
688}
689
690/**
691 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
692 * @ioa_cfg: ioa config struct
693 *
694 * Return value:
695 * 0 on success / -EIO on failure
696 **/
697static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
698{
699 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
700
701 if (pcix_cmd_reg) {
702 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
703 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
704 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
705 return -EIO;
706 }
1da177e4
LT		 707 }
708
709 return 0;
710}
711
35a39691
BK		 712/**
713 * ipr_sata_eh_done - done function for aborted SATA commands
714 * @ipr_cmd: ipr command struct
715 *
716 * This function is invoked for ops generated to SATA
717 * devices which are being aborted.
718 *
719 * Return value:
720 * none
721 **/
722static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
723{
724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
725 struct ata_queued_cmd *qc = ipr_cmd->qc;
726 struct ipr_sata_port *sata_port = qc->ap->private_data;
727
728 qc->err_mask |= AC_ERR_OTHER;
729 sata_port->ioasa.status |= ATA_BUSY;
730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
731 ata_qc_complete(qc);
732}
733
1da177e4
LT		 734/**
735 * ipr_scsi_eh_done - mid-layer done function for aborted ops
736 * @ipr_cmd: ipr command struct
737 *
738 * This function is invoked by the interrupt handler for
739 * ops generated by the SCSI mid-layer which are being aborted.
740 *
741 * Return value:
742 * none
743 **/
744static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
745{
746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
748
749 scsi_cmd->result |= (DID_ERROR << 16);
750
63015bc9 751 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 752 scsi_cmd->scsi_done(scsi_cmd);
753 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
754}
755
756/**
757 * ipr_fail_all_ops - Fails all outstanding ops.
758 * @ioa_cfg: ioa config struct
759 *
760 * This function fails all outstanding ops.
761 *
762 * Return value:
763 * none
764 **/
765static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
766{
767 struct ipr_cmnd *ipr_cmd, *temp;
768
769 ENTER;
770 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
771 list_del(&ipr_cmd->queue);
772
96d21f00
WB		 773 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
774 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
1da177e4
LT		 775
776 if (ipr_cmd->scsi_cmd)
777 ipr_cmd->done = ipr_scsi_eh_done;
35a39691
BK		 778 else if (ipr_cmd->qc)
779 ipr_cmd->done = ipr_sata_eh_done;
1da177e4
LT		 780
781 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
782 del_timer(&ipr_cmd->timer);
783 ipr_cmd->done(ipr_cmd);
784 }
785
786 LEAVE;
787}
788
a32c055f
WB		 789/**
790 * ipr_send_command - Send driver initiated requests.
791 * @ipr_cmd: ipr command struct
792 *
793 * This function sends a command to the adapter using the correct write call.
794 * In the case of sis64, calculate the ioarcb size required. Then or in the
795 * appropriate bits.
796 *
797 * Return value:
798 * none
799 **/
800static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
801{
802 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
803 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
804
805 if (ioa_cfg->sis64) {
806 /* The default size is 256 bytes */
807 send_dma_addr |= 0x1;
808
809 /* If the number of ioadls * size of ioadl > 128 bytes,
810 then use a 512 byte ioarcb */
811 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
812 send_dma_addr |= 0x4;
813 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
814 } else
815 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
816}
817
1da177e4
LT		 818/**
819 * ipr_do_req - Send driver initiated requests.
820 * @ipr_cmd: ipr command struct
821 * @done: done function
822 * @timeout_func: timeout function
823 * @timeout: timeout value
824 *
825 * This function sends the specified command to the adapter with the
826 * timeout given. The done function is invoked on command completion.
827 *
828 * Return value:
829 * none
830 **/
831static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
832 void (*done) (struct ipr_cmnd *),
833 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
834{
835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
836
837 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
838
839 ipr_cmd->done = done;
840
841 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
842 ipr_cmd->timer.expires = jiffies + timeout;
843 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
844
845 add_timer(&ipr_cmd->timer);
846
847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
848
849 mb();
a32c055f
WB		 850
851 ipr_send_command(ipr_cmd);
1da177e4
LT		 852}
853
854/**
855 * ipr_internal_cmd_done - Op done function for an internally generated op.
856 * @ipr_cmd: ipr command struct
857 *
858 * This function is the op done function for an internally generated,
859 * blocking op. It simply wakes the sleeping thread.
860 *
861 * Return value:
862 * none
863 **/
864static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
865{
866 if (ipr_cmd->sibling)
867 ipr_cmd->sibling = NULL;
868 else
869 complete(&ipr_cmd->completion);
870}
871
a32c055f
WB		 872/**
873 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
874 * @ipr_cmd: ipr command struct
875 * @dma_addr: dma address
876 * @len: transfer length
877 * @flags: ioadl flag value
878 *
879 * This function initializes an ioadl in the case where there is only a single
880 * descriptor.
881 *
882 * Return value:
883 * nothing
884 **/
885static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
886 u32 len, int flags)
887{
888 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
889 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
890
891 ipr_cmd->dma_use_sg = 1;
892
893 if (ipr_cmd->ioa_cfg->sis64) {
894 ioadl64->flags = cpu_to_be32(flags);
895 ioadl64->data_len = cpu_to_be32(len);
896 ioadl64->address = cpu_to_be64(dma_addr);
897
898 ipr_cmd->ioarcb.ioadl_len =
899 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
900 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
901 } else {
902 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
903 ioadl->address = cpu_to_be32(dma_addr);
904
905 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
906 ipr_cmd->ioarcb.read_ioadl_len =
907 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
908 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
909 } else {
910 ipr_cmd->ioarcb.ioadl_len =
911 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
912 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
913 }
914 }
915}
916
1da177e4
LT		 917/**
918 * ipr_send_blocking_cmd - Send command and sleep on its completion.
919 * @ipr_cmd: ipr command struct
920 * @timeout_func: function to invoke if command times out
921 * @timeout: timeout
922 *
923 * Return value:
924 * none
925 **/
926static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
927 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
928 u32 timeout)
929{
930 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
931
932 init_completion(&ipr_cmd->completion);
933 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
934
935 spin_unlock_irq(ioa_cfg->host->host_lock);
936 wait_for_completion(&ipr_cmd->completion);
937 spin_lock_irq(ioa_cfg->host->host_lock);
938}
939
940/**
941 * ipr_send_hcam - Send an HCAM to the adapter.
942 * @ioa_cfg: ioa config struct
943 * @type: HCAM type
944 * @hostrcb: hostrcb struct
945 *
946 * This function will send a Host Controlled Async command to the adapter.
947 * If HCAMs are currently not allowed to be issued to the adapter, it will
948 * place the hostrcb on the free queue.
949 *
950 * Return value:
951 * none
952 **/
953static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
954 struct ipr_hostrcb *hostrcb)
955{
956 struct ipr_cmnd *ipr_cmd;
957 struct ipr_ioarcb *ioarcb;
958
959 if (ioa_cfg->allow_cmds) {
960 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
961 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
962 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
963
964 ipr_cmd->u.hostrcb = hostrcb;
965 ioarcb = &ipr_cmd->ioarcb;
966
967 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
969 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
970 ioarcb->cmd_pkt.cdb[1] = type;
971 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
972 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
973
a32c055f
WB		 974 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
975 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 976
977 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
978 ipr_cmd->done = ipr_process_ccn;
979 else
980 ipr_cmd->done = ipr_process_error;
981
982 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
983
984 mb();
a32c055f
WB		 985
986 ipr_send_command(ipr_cmd);
1da177e4
LT		 987 } else {
988 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
989 }
990}
991
3e7ebdfa
WB		 992/**
993 * ipr_update_ata_class - Update the ata class in the resource entry
994 * @res: resource entry struct
995 * @proto: cfgte device bus protocol value
996 *
997 * Return value:
998 * none
999 **/
1000static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1001{
1002 switch(proto) {
1003 case IPR_PROTO_SATA:
1004 case IPR_PROTO_SAS_STP:
1005 res->ata_class = ATA_DEV_ATA;
1006 break;
1007 case IPR_PROTO_SATA_ATAPI:
1008 case IPR_PROTO_SAS_STP_ATAPI:
1009 res->ata_class = ATA_DEV_ATAPI;
1010 break;
1011 default:
1012 res->ata_class = ATA_DEV_UNKNOWN;
1013 break;
1014 };
1015}
1016
1da177e4
LT		 1017/**
1018 * ipr_init_res_entry - Initialize a resource entry struct.
1019 * @res: resource entry struct
3e7ebdfa 1020 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1021 *
1022 * Return value:
1023 * none
1024 **/
3e7ebdfa
WB		 1025static void ipr_init_res_entry(struct ipr_resource_entry *res,
1026 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1027{
3e7ebdfa
WB		 1028 int found = 0;
1029 unsigned int proto;
1030 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1031 struct ipr_resource_entry *gscsi_res = NULL;
1032
ee0a90fa 1033 res->needs_sync_complete = 0;
1da177e4
LT		 1034 res->in_erp = 0;
1035 res->add_to_ml = 0;
1036 res->del_from_ml = 0;
1037 res->resetting_device = 0;
1038 res->sdev = NULL;
35a39691 1039 res->sata_port = NULL;
3e7ebdfa
WB		 1040
1041 if (ioa_cfg->sis64) {
1042 proto = cfgtew->u.cfgte64->proto;
1043 res->res_flags = cfgtew->u.cfgte64->res_flags;
1044 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1045 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1046
1047 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1048 sizeof(res->res_path));
1049
1050 res->bus = 0;
0cb992ed
WB		 1051 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1052 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1053 res->lun = scsilun_to_int(&res->dev_lun);
1054
1055 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1056 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1057 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1058 found = 1;
1059 res->target = gscsi_res->target;
1060 break;
1061 }
1062 }
1063 if (!found) {
1064 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1065 ioa_cfg->max_devs_supported);
1066 set_bit(res->target, ioa_cfg->target_ids);
1067 }
3e7ebdfa
WB		 1068 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1069 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1070 res->target = 0;
1071 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1072 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1073 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1074 ioa_cfg->max_devs_supported);
1075 set_bit(res->target, ioa_cfg->array_ids);
1076 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1077 res->bus = IPR_VSET_VIRTUAL_BUS;
1078 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1079 ioa_cfg->max_devs_supported);
1080 set_bit(res->target, ioa_cfg->vset_ids);
1081 } else {
1082 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1083 ioa_cfg->max_devs_supported);
1084 set_bit(res->target, ioa_cfg->target_ids);
1085 }
1086 } else {
1087 proto = cfgtew->u.cfgte->proto;
1088 res->qmodel = IPR_QUEUEING_MODEL(res);
1089 res->flags = cfgtew->u.cfgte->flags;
1090 if (res->flags & IPR_IS_IOA_RESOURCE)
1091 res->type = IPR_RES_TYPE_IOAFP;
1092 else
1093 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1094
1095 res->bus = cfgtew->u.cfgte->res_addr.bus;
1096 res->target = cfgtew->u.cfgte->res_addr.target;
1097 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1098 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1099 }
1100
1101 ipr_update_ata_class(res, proto);
1102}
1103
1104/**
1105 * ipr_is_same_device - Determine if two devices are the same.
1106 * @res: resource entry struct
1107 * @cfgtew: config table entry wrapper struct
1108 *
1109 * Return value:
1110 * 1 if the devices are the same / 0 otherwise
1111 **/
1112static int ipr_is_same_device(struct ipr_resource_entry *res,
1113 struct ipr_config_table_entry_wrapper *cfgtew)
1114{
1115 if (res->ioa_cfg->sis64) {
1116 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1117 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1118 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1119 sizeof(cfgtew->u.cfgte64->lun))) {
1120 return 1;
1121 }
1122 } else {
1123 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1124 res->target == cfgtew->u.cfgte->res_addr.target &&
1125 res->lun == cfgtew->u.cfgte->res_addr.lun)
1126 return 1;
1127 }
1128
1129 return 0;
1130}
1131
1132/**
5adcbeb3 1133 * ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1134 * @res_path: resource path
1135 * @buf: buffer
1136 *
1137 * Return value:
1138 * pointer to buffer
1139 **/
5adcbeb3 1140static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1141{
1142 int i;
5adcbeb3 1143 char *p = buffer;
3e7ebdfa 1144
46d74563 1145 *p = '\0';
5adcbeb3
WB		 1146 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1147 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1148 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1149
1150 return buffer;
1151}
1152
1153/**
1154 * ipr_update_res_entry - Update the resource entry.
1155 * @res: resource entry struct
1156 * @cfgtew: config table entry wrapper struct
1157 *
1158 * Return value:
1159 * none
1160 **/
1161static void ipr_update_res_entry(struct ipr_resource_entry *res,
1162 struct ipr_config_table_entry_wrapper *cfgtew)
1163{
1164 char buffer[IPR_MAX_RES_PATH_LENGTH];
1165 unsigned int proto;
1166 int new_path = 0;
1167
1168 if (res->ioa_cfg->sis64) {
1169 res->flags = cfgtew->u.cfgte64->flags;
1170 res->res_flags = cfgtew->u.cfgte64->res_flags;
75576bb9 1171 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1172
1173 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1174 sizeof(struct ipr_std_inq_data));
1175
1176 res->qmodel = IPR_QUEUEING_MODEL64(res);
1177 proto = cfgtew->u.cfgte64->proto;
1178 res->res_handle = cfgtew->u.cfgte64->res_handle;
1179 res->dev_id = cfgtew->u.cfgte64->dev_id;
1180
1181 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1182 sizeof(res->dev_lun.scsi_lun));
1183
1184 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1185 sizeof(res->res_path))) {
1186 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1187 sizeof(res->res_path));
1188 new_path = 1;
1189 }
1190
1191 if (res->sdev && new_path)
1192 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
5adcbeb3
WB		 1193 ipr_format_res_path(res->res_path, buffer,
1194 sizeof(buffer)));
3e7ebdfa
WB		 1195 } else {
1196 res->flags = cfgtew->u.cfgte->flags;
1197 if (res->flags & IPR_IS_IOA_RESOURCE)
1198 res->type = IPR_RES_TYPE_IOAFP;
1199 else
1200 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1201
1202 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1203 sizeof(struct ipr_std_inq_data));
1204
1205 res->qmodel = IPR_QUEUEING_MODEL(res);
1206 proto = cfgtew->u.cfgte->proto;
1207 res->res_handle = cfgtew->u.cfgte->res_handle;
1208 }
1209
1210 ipr_update_ata_class(res, proto);
1211}
1212
1213/**
1214 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1215 * for the resource.
1216 * @res: resource entry struct
1217 * @cfgtew: config table entry wrapper struct
1218 *
1219 * Return value:
1220 * none
1221 **/
1222static void ipr_clear_res_target(struct ipr_resource_entry *res)
1223{
1224 struct ipr_resource_entry *gscsi_res = NULL;
1225 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1226
1227 if (!ioa_cfg->sis64)
1228 return;
1229
1230 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1231 clear_bit(res->target, ioa_cfg->array_ids);
1232 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1233 clear_bit(res->target, ioa_cfg->vset_ids);
1234 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1235 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1236 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1237 return;
1238 clear_bit(res->target, ioa_cfg->target_ids);
1239
1240 } else if (res->bus == 0)
1241 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1242}
1243
1244/**
1245 * ipr_handle_config_change - Handle a config change from the adapter
1246 * @ioa_cfg: ioa config struct
1247 * @hostrcb: hostrcb
1248 *
1249 * Return value:
1250 * none
1251 **/
1252static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1253 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1254{
1255 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1256 struct ipr_config_table_entry_wrapper cfgtew;
1257 __be32 cc_res_handle;
1258
1da177e4
LT		 1259 u32 is_ndn = 1;
1260
3e7ebdfa
WB		 1261 if (ioa_cfg->sis64) {
1262 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1263 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1264 } else {
1265 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1266 cc_res_handle = cfgtew.u.cfgte->res_handle;
1267 }
1da177e4
LT		 1268
1269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1270 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1271 is_ndn = 0;
1272 break;
1273 }
1274 }
1275
1276 if (is_ndn) {
1277 if (list_empty(&ioa_cfg->free_res_q)) {
1278 ipr_send_hcam(ioa_cfg,
1279 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1280 hostrcb);
1281 return;
1282 }
1283
1284 res = list_entry(ioa_cfg->free_res_q.next,
1285 struct ipr_resource_entry, queue);
1286
1287 list_del(&res->queue);
3e7ebdfa 1288 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1289 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1290 }
1291
3e7ebdfa 1292 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1293
1294 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1295 if (res->sdev) {
1da177e4 1296 res->del_from_ml = 1;
3e7ebdfa 1297 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 1298 if (ioa_cfg->allow_ml_add_del)
1299 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1300 } else {
1301 ipr_clear_res_target(res);
1da177e4 1302 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1303 }
1da177e4
LT		 1304 } else if (!res->sdev) {
1305 res->add_to_ml = 1;
1306 if (ioa_cfg->allow_ml_add_del)
1307 schedule_work(&ioa_cfg->work_q);
1308 }
1309
1310 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1311}
1312
1313/**
1314 * ipr_process_ccn - Op done function for a CCN.
1315 * @ipr_cmd: ipr command struct
1316 *
1317 * This function is the op done function for a configuration
1318 * change notification host controlled async from the adapter.
1319 *
1320 * Return value:
1321 * none
1322 **/
1323static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1324{
1325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1326 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1327 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1328
1329 list_del(&hostrcb->queue);
1330 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1331
1332 if (ioasc) {
1333 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1334 dev_err(&ioa_cfg->pdev->dev,
1335 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1336
1337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1338 } else {
1339 ipr_handle_config_change(ioa_cfg, hostrcb);
1340 }
1341}
1342
8cf093e2
BK		 1343/**
1344 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1345 * @i: index into buffer
1346 * @buf: string to modify
1347 *
1348 * This function will strip all trailing whitespace, pad the end
1349 * of the string with a single space, and NULL terminate the string.
1350 *
1351 * Return value:
1352 * new length of string
1353 **/
1354static int strip_and_pad_whitespace(int i, char *buf)
1355{
1356 while (i && buf[i] == ' ')
1357 i--;
1358 buf[i+1] = ' ';
1359 buf[i+2] = '\0';
1360 return i + 2;
1361}
1362
1363/**
1364 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1365 * @prefix: string to print at start of printk
1366 * @hostrcb: hostrcb pointer
1367 * @vpd: vendor/product id/sn struct
1368 *
1369 * Return value:
1370 * none
1371 **/
1372static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1373 struct ipr_vpd *vpd)
1374{
1375 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1376 int i = 0;
1377
1378 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1379 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1380
1381 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1382 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1383
1384 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1385 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1386
1387 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1388}
1389
1da177e4
LT		 1390/**
1391 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1392 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1393 *
1394 * Return value:
1395 * none
1396 **/
cfc32139 1397static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1398{
1399 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1400 + IPR_SERIAL_NUM_LEN];
1401
cfc32139 1402 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1403 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1404 IPR_PROD_ID_LEN);
1405 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1406 ipr_err("Vendor/Product ID: %s\n", buffer);
1407
cfc32139 1408 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1409 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1410 ipr_err(" Serial Number: %s\n", buffer);
1411}
1412
8cf093e2
BK		 1413/**
1414 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1415 * @prefix: string to print at start of printk
1416 * @hostrcb: hostrcb pointer
1417 * @vpd: vendor/product id/sn/wwn struct
1418 *
1419 * Return value:
1420 * none
1421 **/
1422static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1423 struct ipr_ext_vpd *vpd)
1424{
1425 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1426 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1427 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1428}
1429
ee0f05b8 1430/**
1431 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1432 * @vpd: vendor/product id/sn/wwn struct
1433 *
1434 * Return value:
1435 * none
1436 **/
1437static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1438{
1439 ipr_log_vpd(&vpd->vpd);
1440 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1441 be32_to_cpu(vpd->wwid[1]));
1442}
1443
1444/**
1445 * ipr_log_enhanced_cache_error - Log a cache error.
1446 * @ioa_cfg: ioa config struct
1447 * @hostrcb: hostrcb struct
1448 *
1449 * Return value:
1450 * none
1451 **/
1452static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1453 struct ipr_hostrcb *hostrcb)
1454{
4565e370
WB		 1455 struct ipr_hostrcb_type_12_error *error;
1456
1457 if (ioa_cfg->sis64)
1458 error = &hostrcb->hcam.u.error64.u.type_12_error;
1459 else
1460 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8 1461
1462 ipr_err("-----Current Configuration-----\n");
1463 ipr_err("Cache Directory Card Information:\n");
1464 ipr_log_ext_vpd(&error->ioa_vpd);
1465 ipr_err("Adapter Card Information:\n");
1466 ipr_log_ext_vpd(&error->cfc_vpd);
1467
1468 ipr_err("-----Expected Configuration-----\n");
1469 ipr_err("Cache Directory Card Information:\n");
1470 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1471 ipr_err("Adapter Card Information:\n");
1472 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1473
1474 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1475 be32_to_cpu(error->ioa_data[0]),
1476 be32_to_cpu(error->ioa_data[1]),
1477 be32_to_cpu(error->ioa_data[2]));
1478}
1479
1da177e4
LT		 1480/**
1481 * ipr_log_cache_error - Log a cache error.
1482 * @ioa_cfg: ioa config struct
1483 * @hostrcb: hostrcb struct
1484 *
1485 * Return value:
1486 * none
1487 **/
1488static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1489 struct ipr_hostrcb *hostrcb)
1490{
1491 struct ipr_hostrcb_type_02_error *error =
1492 &hostrcb->hcam.u.error.u.type_02_error;
1493
1494 ipr_err("-----Current Configuration-----\n");
1495 ipr_err("Cache Directory Card Information:\n");
cfc32139 1496 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1497 ipr_err("Adapter Card Information:\n");
cfc32139 1498 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1499
1500 ipr_err("-----Expected Configuration-----\n");
1501 ipr_err("Cache Directory Card Information:\n");
cfc32139 1502 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1503 ipr_err("Adapter Card Information:\n");
cfc32139 1504 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1505
1506 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1507 be32_to_cpu(error->ioa_data[0]),
1508 be32_to_cpu(error->ioa_data[1]),
1509 be32_to_cpu(error->ioa_data[2]));
1510}
1511
ee0f05b8 1512/**
1513 * ipr_log_enhanced_config_error - Log a configuration error.
1514 * @ioa_cfg: ioa config struct
1515 * @hostrcb: hostrcb struct
1516 *
1517 * Return value:
1518 * none
1519 **/
1520static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1521 struct ipr_hostrcb *hostrcb)
1522{
1523 int errors_logged, i;
1524 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1525 struct ipr_hostrcb_type_13_error *error;
1526
1527 error = &hostrcb->hcam.u.error.u.type_13_error;
1528 errors_logged = be32_to_cpu(error->errors_logged);
1529
1530 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1531 be32_to_cpu(error->errors_detected), errors_logged);
1532
1533 dev_entry = error->dev;
1534
1535 for (i = 0; i < errors_logged; i++, dev_entry++) {
1536 ipr_err_separator;
1537
1538 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1539 ipr_log_ext_vpd(&dev_entry->vpd);
1540
1541 ipr_err("-----New Device Information-----\n");
1542 ipr_log_ext_vpd(&dev_entry->new_vpd);
1543
1544 ipr_err("Cache Directory Card Information:\n");
1545 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1546
1547 ipr_err("Adapter Card Information:\n");
1548 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1549 }
1550}
1551
4565e370
WB		 1552/**
1553 * ipr_log_sis64_config_error - Log a device error.
1554 * @ioa_cfg: ioa config struct
1555 * @hostrcb: hostrcb struct
1556 *
1557 * Return value:
1558 * none
1559 **/
1560static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1561 struct ipr_hostrcb *hostrcb)
1562{
1563 int errors_logged, i;
1564 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1565 struct ipr_hostrcb_type_23_error *error;
1566 char buffer[IPR_MAX_RES_PATH_LENGTH];
1567
1568 error = &hostrcb->hcam.u.error64.u.type_23_error;
1569 errors_logged = be32_to_cpu(error->errors_logged);
1570
1571 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1572 be32_to_cpu(error->errors_detected), errors_logged);
1573
1574 dev_entry = error->dev;
1575
1576 for (i = 0; i < errors_logged; i++, dev_entry++) {
1577 ipr_err_separator;
1578
1579 ipr_err("Device %d : %s", i + 1,
5adcbeb3
WB		 1580 ipr_format_res_path(dev_entry->res_path, buffer,
1581 sizeof(buffer)));
4565e370
WB		 1582 ipr_log_ext_vpd(&dev_entry->vpd);
1583
1584 ipr_err("-----New Device Information-----\n");
1585 ipr_log_ext_vpd(&dev_entry->new_vpd);
1586
1587 ipr_err("Cache Directory Card Information:\n");
1588 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1589
1590 ipr_err("Adapter Card Information:\n");
1591 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1592 }
1593}
1594
1da177e4
LT		 1595/**
1596 * ipr_log_config_error - Log a configuration error.
1597 * @ioa_cfg: ioa config struct
1598 * @hostrcb: hostrcb struct
1599 *
1600 * Return value:
1601 * none
1602 **/
1603static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1604 struct ipr_hostrcb *hostrcb)
1605{
1606 int errors_logged, i;
1607 struct ipr_hostrcb_device_data_entry *dev_entry;
1608 struct ipr_hostrcb_type_03_error *error;
1609
1610 error = &hostrcb->hcam.u.error.u.type_03_error;
1611 errors_logged = be32_to_cpu(error->errors_logged);
1612
1613 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1614 be32_to_cpu(error->errors_detected), errors_logged);
1615
cfc32139 1616 dev_entry = error->dev;
1da177e4
LT		 1617
1618 for (i = 0; i < errors_logged; i++, dev_entry++) {
1619 ipr_err_separator;
1620
fa15b1f6 1621 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1622 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1623
1624 ipr_err("-----New Device Information-----\n");
cfc32139 1625 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1626
1627 ipr_err("Cache Directory Card Information:\n");
cfc32139 1628 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1629
1630 ipr_err("Adapter Card Information:\n");
cfc32139 1631 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1632
1633 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1634 be32_to_cpu(dev_entry->ioa_data[0]),
1635 be32_to_cpu(dev_entry->ioa_data[1]),
1636 be32_to_cpu(dev_entry->ioa_data[2]),
1637 be32_to_cpu(dev_entry->ioa_data[3]),
1638 be32_to_cpu(dev_entry->ioa_data[4]));
1639 }
1640}
1641
ee0f05b8 1642/**
1643 * ipr_log_enhanced_array_error - Log an array configuration error.
1644 * @ioa_cfg: ioa config struct
1645 * @hostrcb: hostrcb struct
1646 *
1647 * Return value:
1648 * none
1649 **/
1650static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1651 struct ipr_hostrcb *hostrcb)
1652{
1653 int i, num_entries;
1654 struct ipr_hostrcb_type_14_error *error;
1655 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1656 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1657
1658 error = &hostrcb->hcam.u.error.u.type_14_error;
1659
1660 ipr_err_separator;
1661
1662 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1663 error->protection_level,
1664 ioa_cfg->host->host_no,
1665 error->last_func_vset_res_addr.bus,
1666 error->last_func_vset_res_addr.target,
1667 error->last_func_vset_res_addr.lun);
1668
1669 ipr_err_separator;
1670
1671 array_entry = error->array_member;
1672 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1673 ARRAY_SIZE(error->array_member));
ee0f05b8 1674
1675 for (i = 0; i < num_entries; i++, array_entry++) {
1676 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1677 continue;
1678
1679 if (be32_to_cpu(error->exposed_mode_adn) == i)
1680 ipr_err("Exposed Array Member %d:\n", i);
1681 else
1682 ipr_err("Array Member %d:\n", i);
1683
1684 ipr_log_ext_vpd(&array_entry->vpd);
1685 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1686 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1687 "Expected Location");
1688
1689 ipr_err_separator;
1690 }
1691}
1692
1da177e4
LT		 1693/**
1694 * ipr_log_array_error - Log an array configuration error.
1695 * @ioa_cfg: ioa config struct
1696 * @hostrcb: hostrcb struct
1697 *
1698 * Return value:
1699 * none
1700 **/
1701static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1702 struct ipr_hostrcb *hostrcb)
1703{
1704 int i;
1705 struct ipr_hostrcb_type_04_error *error;
1706 struct ipr_hostrcb_array_data_entry *array_entry;
1707 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1708
1709 error = &hostrcb->hcam.u.error.u.type_04_error;
1710
1711 ipr_err_separator;
1712
1713 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1714 error->protection_level,
1715 ioa_cfg->host->host_no,
1716 error->last_func_vset_res_addr.bus,
1717 error->last_func_vset_res_addr.target,
1718 error->last_func_vset_res_addr.lun);
1719
1720 ipr_err_separator;
1721
1722 array_entry = error->array_member;
1723
1724 for (i = 0; i < 18; i++) {
cfc32139 1725 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1726 continue;
1727
fa15b1f6 1728 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1729 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1730 else
1da177e4 1731 ipr_err("Array Member %d:\n", i);
1da177e4 1732
cfc32139 1733 ipr_log_vpd(&array_entry->vpd);
1da177e4 1734
fa15b1f6 1735 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1736 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1737 "Expected Location");
1da177e4
LT		 1738
1739 ipr_err_separator;
1740
1741 if (i == 9)
1742 array_entry = error->array_member2;
1743 else
1744 array_entry++;
1745 }
1746}
1747
1748/**
b0df54bb 1749 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1750 * @ioa_cfg: ioa config struct
b0df54bb 1751 * @data: IOA error data
1752 * @len: data length
1da177e4
LT		 1753 *
1754 * Return value:
1755 * none
1756 **/
ac719aba 1757static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1758{
1759 int i;
1da177e4 1760
b0df54bb 1761 if (len == 0)
1da177e4
LT		 1762 return;
1763
ac719aba
BK		 1764 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1765 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1766
b0df54bb 1767 for (i = 0; i < len / 4; i += 4) {
1da177e4 1768 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb 1769 be32_to_cpu(data[i]),
1770 be32_to_cpu(data[i+1]),
1771 be32_to_cpu(data[i+2]),
1772 be32_to_cpu(data[i+3]));
1da177e4
LT		 1773 }
1774}
1775
ee0f05b8 1776/**
1777 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1778 * @ioa_cfg: ioa config struct
1779 * @hostrcb: hostrcb struct
1780 *
1781 * Return value:
1782 * none
1783 **/
1784static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1785 struct ipr_hostrcb *hostrcb)
1786{
1787 struct ipr_hostrcb_type_17_error *error;
1788
4565e370
WB		 1789 if (ioa_cfg->sis64)
1790 error = &hostrcb->hcam.u.error64.u.type_17_error;
1791 else
1792 error = &hostrcb->hcam.u.error.u.type_17_error;
1793
ee0f05b8 1794 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1795 strim(error->failure_reason);
ee0f05b8 1796
8cf093e2
BK		 1797 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1798 be32_to_cpu(hostrcb->hcam.u.error.prc));
1799 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1800 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8 1801 be32_to_cpu(hostrcb->hcam.length) -
1802 (offsetof(struct ipr_hostrcb_error, u) +
1803 offsetof(struct ipr_hostrcb_type_17_error, data)));
1804}
1805
b0df54bb 1806/**
1807 * ipr_log_dual_ioa_error - Log a dual adapter error.
1808 * @ioa_cfg: ioa config struct
1809 * @hostrcb: hostrcb struct
1810 *
1811 * Return value:
1812 * none
1813 **/
1814static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1815 struct ipr_hostrcb *hostrcb)
1816{
1817 struct ipr_hostrcb_type_07_error *error;
1818
1819 error = &hostrcb->hcam.u.error.u.type_07_error;
1820 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1821 strim(error->failure_reason);
b0df54bb 1822
8cf093e2
BK		 1823 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1824 be32_to_cpu(hostrcb->hcam.u.error.prc));
1825 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1826 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb 1827 be32_to_cpu(hostrcb->hcam.length) -
1828 (offsetof(struct ipr_hostrcb_error, u) +
1829 offsetof(struct ipr_hostrcb_type_07_error, data)));
1830}
1831
49dc6a18
BK		 1832static const struct {
1833 u8 active;
1834 char *desc;
1835} path_active_desc[] = {
1836 { IPR_PATH_NO_INFO, "Path" },
1837 { IPR_PATH_ACTIVE, "Active path" },
1838 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1839};
1840
1841static const struct {
1842 u8 state;
1843 char *desc;
1844} path_state_desc[] = {
1845 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1846 { IPR_PATH_HEALTHY, "is healthy" },
1847 { IPR_PATH_DEGRADED, "is degraded" },
1848 { IPR_PATH_FAILED, "is failed" }
1849};
1850
1851/**
1852 * ipr_log_fabric_path - Log a fabric path error
1853 * @hostrcb: hostrcb struct
1854 * @fabric: fabric descriptor
1855 *
1856 * Return value:
1857 * none
1858 **/
1859static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1860 struct ipr_hostrcb_fabric_desc *fabric)
1861{
1862 int i, j;
1863 u8 path_state = fabric->path_state;
1864 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1865 u8 state = path_state & IPR_PATH_STATE_MASK;
1866
1867 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1868 if (path_active_desc[i].active != active)
1869 continue;
1870
1871 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1872 if (path_state_desc[j].state != state)
1873 continue;
1874
1875 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1876 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1877 path_active_desc[i].desc, path_state_desc[j].desc,
1878 fabric->ioa_port);
1879 } else if (fabric->cascaded_expander == 0xff) {
1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1881 path_active_desc[i].desc, path_state_desc[j].desc,
1882 fabric->ioa_port, fabric->phy);
1883 } else if (fabric->phy == 0xff) {
1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1885 path_active_desc[i].desc, path_state_desc[j].desc,
1886 fabric->ioa_port, fabric->cascaded_expander);
1887 } else {
1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1889 path_active_desc[i].desc, path_state_desc[j].desc,
1890 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1891 }
1892 return;
1893 }
1894 }
1895
1896 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1897 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1898}
1899
4565e370
WB		 1900/**
1901 * ipr_log64_fabric_path - Log a fabric path error
1902 * @hostrcb: hostrcb struct
1903 * @fabric: fabric descriptor
1904 *
1905 * Return value:
1906 * none
1907 **/
1908static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1909 struct ipr_hostrcb64_fabric_desc *fabric)
1910{
1911 int i, j;
1912 u8 path_state = fabric->path_state;
1913 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1914 u8 state = path_state & IPR_PATH_STATE_MASK;
1915 char buffer[IPR_MAX_RES_PATH_LENGTH];
1916
1917 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1918 if (path_active_desc[i].active != active)
1919 continue;
1920
1921 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1922 if (path_state_desc[j].state != state)
1923 continue;
1924
1925 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1926 path_active_desc[i].desc, path_state_desc[j].desc,
5adcbeb3
WB		 1927 ipr_format_res_path(fabric->res_path, buffer,
1928 sizeof(buffer)));
4565e370
WB		 1929 return;
1930 }
1931 }
1932
1933 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
5adcbeb3 1934 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
4565e370
WB		 1935}
1936
49dc6a18
BK		 1937static const struct {
1938 u8 type;
1939 char *desc;
1940} path_type_desc[] = {
1941 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1942 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1943 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1944 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1945};
1946
1947static const struct {
1948 u8 status;
1949 char *desc;
1950} path_status_desc[] = {
1951 { IPR_PATH_CFG_NO_PROB, "Functional" },
1952 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1953 { IPR_PATH_CFG_FAILED, "Failed" },
1954 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1955 { IPR_PATH_NOT_DETECTED, "Missing" },
1956 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1957};
1958
1959static const char *link_rate[] = {
1960 "unknown",
1961 "disabled",
1962 "phy reset problem",
1963 "spinup hold",
1964 "port selector",
1965 "unknown",
1966 "unknown",
1967 "unknown",
1968 "1.5Gbps",
1969 "3.0Gbps",
1970 "unknown",
1971 "unknown",
1972 "unknown",
1973 "unknown",
1974 "unknown",
1975 "unknown"
1976};
1977
1978/**
1979 * ipr_log_path_elem - Log a fabric path element.
1980 * @hostrcb: hostrcb struct
1981 * @cfg: fabric path element struct
1982 *
1983 * Return value:
1984 * none
1985 **/
1986static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1987 struct ipr_hostrcb_config_element *cfg)
1988{
1989 int i, j;
1990 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1991 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1992
1993 if (type == IPR_PATH_CFG_NOT_EXIST)
1994 return;
1995
1996 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1997 if (path_type_desc[i].type != type)
1998 continue;
1999
2000 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2001 if (path_status_desc[j].status != status)
2002 continue;
2003
2004 if (type == IPR_PATH_CFG_IOA_PORT) {
2005 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2006 path_status_desc[j].desc, path_type_desc[i].desc,
2007 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2009 } else {
2010 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2012 path_status_desc[j].desc, path_type_desc[i].desc,
2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2015 } else if (cfg->cascaded_expander == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2017 "WWN=%08X%08X\n", path_status_desc[j].desc,
2018 path_type_desc[i].desc, cfg->phy,
2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2021 } else if (cfg->phy == 0xff) {
2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2023 "WWN=%08X%08X\n", path_status_desc[j].desc,
2024 path_type_desc[i].desc, cfg->cascaded_expander,
2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2027 } else {
2028 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2029 "WWN=%08X%08X\n", path_status_desc[j].desc,
2030 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2033 }
2034 }
2035 return;
2036 }
2037 }
2038
2039 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2040 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2041 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2042 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2043}
2044
4565e370
WB		 2045/**
2046 * ipr_log64_path_elem - Log a fabric path element.
2047 * @hostrcb: hostrcb struct
2048 * @cfg: fabric path element struct
2049 *
2050 * Return value:
2051 * none
2052 **/
2053static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2054 struct ipr_hostrcb64_config_element *cfg)
2055{
2056 int i, j;
2057 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2058 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2059 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2060 char buffer[IPR_MAX_RES_PATH_LENGTH];
2061
2062 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2063 return;
2064
2065 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2066 if (path_type_desc[i].type != type)
2067 continue;
2068
2069 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2070 if (path_status_desc[j].status != status)
2071 continue;
2072
2073 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2074 path_status_desc[j].desc, path_type_desc[i].desc,
5adcbeb3
WB		 2075 ipr_format_res_path(cfg->res_path, buffer,
2076 sizeof(buffer)),
4565e370
WB		 2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2079 return;
2080 }
2081 }
2082 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2083 "WWN=%08X%08X\n", cfg->type_status,
5adcbeb3 2084 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
4565e370
WB		 2085 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2086 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2087}
2088
49dc6a18
BK		 2089/**
2090 * ipr_log_fabric_error - Log a fabric error.
2091 * @ioa_cfg: ioa config struct
2092 * @hostrcb: hostrcb struct
2093 *
2094 * Return value:
2095 * none
2096 **/
2097static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2098 struct ipr_hostrcb *hostrcb)
2099{
2100 struct ipr_hostrcb_type_20_error *error;
2101 struct ipr_hostrcb_fabric_desc *fabric;
2102 struct ipr_hostrcb_config_element *cfg;
2103 int i, add_len;
2104
2105 error = &hostrcb->hcam.u.error.u.type_20_error;
2106 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2107 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2108
2109 add_len = be32_to_cpu(hostrcb->hcam.length) -
2110 (offsetof(struct ipr_hostrcb_error, u) +
2111 offsetof(struct ipr_hostrcb_type_20_error, desc));
2112
2113 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2114 ipr_log_fabric_path(hostrcb, fabric);
2115 for_each_fabric_cfg(fabric, cfg)
2116 ipr_log_path_elem(hostrcb, cfg);
2117
2118 add_len -= be16_to_cpu(fabric->length);
2119 fabric = (struct ipr_hostrcb_fabric_desc *)
2120 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2121 }
2122
ac719aba 2123 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2124}
2125
4565e370
WB		 2126/**
2127 * ipr_log_sis64_array_error - Log a sis64 array error.
2128 * @ioa_cfg: ioa config struct
2129 * @hostrcb: hostrcb struct
2130 *
2131 * Return value:
2132 * none
2133 **/
2134static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2135 struct ipr_hostrcb *hostrcb)
2136{
2137 int i, num_entries;
2138 struct ipr_hostrcb_type_24_error *error;
2139 struct ipr_hostrcb64_array_data_entry *array_entry;
2140 char buffer[IPR_MAX_RES_PATH_LENGTH];
2141 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2142
2143 error = &hostrcb->hcam.u.error64.u.type_24_error;
2144
2145 ipr_err_separator;
2146
2147 ipr_err("RAID %s Array Configuration: %s\n",
2148 error->protection_level,
5adcbeb3 2149 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
4565e370
WB		 2150
2151 ipr_err_separator;
2152
2153 array_entry = error->array_member;
7262026f
WB		 2154 num_entries = min_t(u32, error->num_entries,
2155 ARRAY_SIZE(error->array_member));
4565e370
WB		 2156
2157 for (i = 0; i < num_entries; i++, array_entry++) {
2158
2159 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2160 continue;
2161
2162 if (error->exposed_mode_adn == i)
2163 ipr_err("Exposed Array Member %d:\n", i);
2164 else
2165 ipr_err("Array Member %d:\n", i);
2166
2167 ipr_err("Array Member %d:\n", i);
2168 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2169 ipr_err("Current Location: %s\n",
5adcbeb3
WB		 2170 ipr_format_res_path(array_entry->res_path, buffer,
2171 sizeof(buffer)));
7262026f 2172 ipr_err("Expected Location: %s\n",
5adcbeb3
WB		 2173 ipr_format_res_path(array_entry->expected_res_path,
2174 buffer, sizeof(buffer)));
4565e370
WB		 2175
2176 ipr_err_separator;
2177 }
2178}
2179
2180/**
2181 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2182 * @ioa_cfg: ioa config struct
2183 * @hostrcb: hostrcb struct
2184 *
2185 * Return value:
2186 * none
2187 **/
2188static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2189 struct ipr_hostrcb *hostrcb)
2190{
2191 struct ipr_hostrcb_type_30_error *error;
2192 struct ipr_hostrcb64_fabric_desc *fabric;
2193 struct ipr_hostrcb64_config_element *cfg;
2194 int i, add_len;
2195
2196 error = &hostrcb->hcam.u.error64.u.type_30_error;
2197
2198 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2199 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2200
2201 add_len = be32_to_cpu(hostrcb->hcam.length) -
2202 (offsetof(struct ipr_hostrcb64_error, u) +
2203 offsetof(struct ipr_hostrcb_type_30_error, desc));
2204
2205 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2206 ipr_log64_fabric_path(hostrcb, fabric);
2207 for_each_fabric_cfg(fabric, cfg)
2208 ipr_log64_path_elem(hostrcb, cfg);
2209
2210 add_len -= be16_to_cpu(fabric->length);
2211 fabric = (struct ipr_hostrcb64_fabric_desc *)
2212 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2213 }
2214
2215 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2216}
2217
b0df54bb 2218/**
2219 * ipr_log_generic_error - Log an adapter error.
2220 * @ioa_cfg: ioa config struct
2221 * @hostrcb: hostrcb struct
2222 *
2223 * Return value:
2224 * none
2225 **/
2226static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2227 struct ipr_hostrcb *hostrcb)
2228{
ac719aba 2229 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb 2230 be32_to_cpu(hostrcb->hcam.length));
2231}
2232
1da177e4
LT		 2233/**
2234 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2235 * @ioasc: IOASC
2236 *
2237 * This function will return the index of into the ipr_error_table
2238 * for the specified IOASC. If the IOASC is not in the table,
2239 * 0 will be returned, which points to the entry used for unknown errors.
2240 *
2241 * Return value:
2242 * index into the ipr_error_table
2243 **/
2244static u32 ipr_get_error(u32 ioasc)
2245{
2246 int i;
2247
2248 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2249 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2250 return i;
2251
2252 return 0;
2253}
2254
2255/**
2256 * ipr_handle_log_data - Log an adapter error.
2257 * @ioa_cfg: ioa config struct
2258 * @hostrcb: hostrcb struct
2259 *
2260 * This function logs an adapter error to the system.
2261 *
2262 * Return value:
2263 * none
2264 **/
2265static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2266 struct ipr_hostrcb *hostrcb)
2267{
2268 u32 ioasc;
2269 int error_index;
2270
2271 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2272 return;
2273
2274 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2275 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2276
4565e370
WB		 2277 if (ioa_cfg->sis64)
2278 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2279 else
2280 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2281
4565e370
WB		 2282 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2283 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2284 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2285 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2286 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2287 }
2288
2289 error_index = ipr_get_error(ioasc);
2290
2291 if (!ipr_error_table[error_index].log_hcam)
2292 return;
2293
49dc6a18 2294 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2295
2296 /* Set indication we have logged an error */
2297 ioa_cfg->errors_logged++;
2298
933916f3 2299 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2300 return;
cf852037 2301 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2302 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2303
2304 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2305 case IPR_HOST_RCB_OVERLAY_ID_2:
2306 ipr_log_cache_error(ioa_cfg, hostrcb);
2307 break;
2308 case IPR_HOST_RCB_OVERLAY_ID_3:
2309 ipr_log_config_error(ioa_cfg, hostrcb);
2310 break;
2311 case IPR_HOST_RCB_OVERLAY_ID_4:
2312 case IPR_HOST_RCB_OVERLAY_ID_6:
2313 ipr_log_array_error(ioa_cfg, hostrcb);
2314 break;
b0df54bb 2315 case IPR_HOST_RCB_OVERLAY_ID_7:
2316 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2317 break;
ee0f05b8 2318 case IPR_HOST_RCB_OVERLAY_ID_12:
2319 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2320 break;
2321 case IPR_HOST_RCB_OVERLAY_ID_13:
2322 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2323 break;
2324 case IPR_HOST_RCB_OVERLAY_ID_14:
2325 case IPR_HOST_RCB_OVERLAY_ID_16:
2326 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2327 break;
2328 case IPR_HOST_RCB_OVERLAY_ID_17:
2329 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2330 break;
49dc6a18
BK		 2331 case IPR_HOST_RCB_OVERLAY_ID_20:
2332 ipr_log_fabric_error(ioa_cfg, hostrcb);
2333 break;
4565e370
WB		 2334 case IPR_HOST_RCB_OVERLAY_ID_23:
2335 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2336 break;
2337 case IPR_HOST_RCB_OVERLAY_ID_24:
2338 case IPR_HOST_RCB_OVERLAY_ID_26:
2339 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2340 break;
2341 case IPR_HOST_RCB_OVERLAY_ID_30:
2342 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2343 break;
cf852037 2344 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2345 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2346 default:
a9cfca96 2347 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2348 break;
2349 }
2350}
2351
2352/**
2353 * ipr_process_error - Op done function for an adapter error log.
2354 * @ipr_cmd: ipr command struct
2355 *
2356 * This function is the op done function for an error log host
2357 * controlled async from the adapter. It will log the error and
2358 * send the HCAM back to the adapter.
2359 *
2360 * Return value:
2361 * none
2362 **/
2363static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2364{
2365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2366 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2367 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2368 u32 fd_ioasc;
2369
2370 if (ioa_cfg->sis64)
2371 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2372 else
2373 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2374
2375 list_del(&hostrcb->queue);
2376 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2377
2378 if (!ioasc) {
2379 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2380 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2382 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2383 dev_err(&ioa_cfg->pdev->dev,
2384 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2385 }
2386
2387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2388}
2389
2390/**
2391 * ipr_timeout - An internally generated op has timed out.
2392 * @ipr_cmd: ipr command struct
2393 *
2394 * This function blocks host requests and initiates an
2395 * adapter reset.
2396 *
2397 * Return value:
2398 * none
2399 **/
2400static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2401{
2402 unsigned long lock_flags = 0;
2403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2404
2405 ENTER;
2406 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2407
2408 ioa_cfg->errors_logged++;
2409 dev_err(&ioa_cfg->pdev->dev,
2410 "Adapter being reset due to command timeout.\n");
2411
2412 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2413 ioa_cfg->sdt_state = GET_DUMP;
2414
2415 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2417
2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2419 LEAVE;
2420}
2421
2422/**
2423 * ipr_oper_timeout - Adapter timed out transitioning to operational
2424 * @ipr_cmd: ipr command struct
2425 *
2426 * This function blocks host requests and initiates an
2427 * adapter reset.
2428 *
2429 * Return value:
2430 * none
2431 **/
2432static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2433{
2434 unsigned long lock_flags = 0;
2435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2436
2437 ENTER;
2438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2439
2440 ioa_cfg->errors_logged++;
2441 dev_err(&ioa_cfg->pdev->dev,
2442 "Adapter timed out transitioning to operational.\n");
2443
2444 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2445 ioa_cfg->sdt_state = GET_DUMP;
2446
2447 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2448 if (ipr_fastfail)
2449 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2451 }
2452
2453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2454 LEAVE;
2455}
2456
2457/**
2458 * ipr_reset_reload - Reset/Reload the IOA
2459 * @ioa_cfg: ioa config struct
2460 * @shutdown_type: shutdown type
2461 *
2462 * This function resets the adapter and re-initializes it.
2463 * This function assumes that all new host commands have been stopped.
2464 * Return value:
2465 * SUCCESS / FAILED
2466 **/
2467static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2468 enum ipr_shutdown_type shutdown_type)
2469{
2470 if (!ioa_cfg->in_reset_reload)
2471 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2472
2473 spin_unlock_irq(ioa_cfg->host->host_lock);
2474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2475 spin_lock_irq(ioa_cfg->host->host_lock);
2476
2477 /* If we got hit with a host reset while we were already resetting
2478 the adapter for some reason, and the reset failed. */
2479 if (ioa_cfg->ioa_is_dead) {
2480 ipr_trace;
2481 return FAILED;
2482 }
2483
2484 return SUCCESS;
2485}
2486
2487/**
2488 * ipr_find_ses_entry - Find matching SES in SES table
2489 * @res: resource entry struct of SES
2490 *
2491 * Return value:
2492 * pointer to SES table entry / NULL on failure
2493 **/
2494static const struct ipr_ses_table_entry *
2495ipr_find_ses_entry(struct ipr_resource_entry *res)
2496{
2497 int i, j, matches;
3e7ebdfa 2498 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2499 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2500
2501 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2502 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2503 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2504 vpids = &res->std_inq_data.vpids;
2505 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2506 matches++;
2507 else
2508 break;
2509 } else
2510 matches++;
2511 }
2512
2513 if (matches == IPR_PROD_ID_LEN)
2514 return ste;
2515 }
2516
2517 return NULL;
2518}
2519
2520/**
2521 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2522 * @ioa_cfg: ioa config struct
2523 * @bus: SCSI bus
2524 * @bus_width: bus width
2525 *
2526 * Return value:
2527 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2528 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2529 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2530 * max 160MHz = max 320MB/sec).
2531 **/
2532static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2533{
2534 struct ipr_resource_entry *res;
2535 const struct ipr_ses_table_entry *ste;
2536 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2537
2538 /* Loop through each config table entry in the config table buffer */
2539 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2540 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2541 continue;
2542
3e7ebdfa 2543 if (bus != res->bus)
1da177e4
LT		 2544 continue;
2545
2546 if (!(ste = ipr_find_ses_entry(res)))
2547 continue;
2548
2549 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2550 }
2551
2552 return max_xfer_rate;
2553}
2554
2555/**
2556 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2557 * @ioa_cfg: ioa config struct
2558 * @max_delay: max delay in micro-seconds to wait
2559 *
2560 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2561 *
2562 * Return value:
2563 * 0 on success / other on failure
2564 **/
2565static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2566{
2567 volatile u32 pcii_reg;
2568 int delay = 1;
2569
2570 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2571 while (delay < max_delay) {
2572 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2573
2574 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2575 return 0;
2576
2577 /* udelay cannot be used if delay is more than a few milliseconds */
2578 if ((delay / 1000) > MAX_UDELAY_MS)
2579 mdelay(delay / 1000);
2580 else
2581 udelay(delay);
2582
2583 delay += delay;
2584 }
2585 return -EIO;
2586}
2587
dcbad00e
WB		 2588/**
2589 * ipr_get_sis64_dump_data_section - Dump IOA memory
2590 * @ioa_cfg: ioa config struct
2591 * @start_addr: adapter address to dump
2592 * @dest: destination kernel buffer
2593 * @length_in_words: length to dump in 4 byte words
2594 *
2595 * Return value:
2596 * 0 on success
2597 **/
2598static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2599 u32 start_addr,
2600 __be32 *dest, u32 length_in_words)
2601{
2602 int i;
2603
2604 for (i = 0; i < length_in_words; i++) {
2605 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2606 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2607 dest++;
2608 }
2609
2610 return 0;
2611}
2612
1da177e4
LT		 2613/**
2614 * ipr_get_ldump_data_section - Dump IOA memory
2615 * @ioa_cfg: ioa config struct
2616 * @start_addr: adapter address to dump
2617 * @dest: destination kernel buffer
2618 * @length_in_words: length to dump in 4 byte words
2619 *
2620 * Return value:
2621 * 0 on success / -EIO on failure
2622 **/
2623static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2624 u32 start_addr,
2625 __be32 *dest, u32 length_in_words)
2626{
2627 volatile u32 temp_pcii_reg;
2628 int i, delay = 0;
2629
dcbad00e
WB		 2630 if (ioa_cfg->sis64)
2631 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2632 dest, length_in_words);
2633
1da177e4
LT		 2634 /* Write IOA interrupt reg starting LDUMP state */
2635 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2636 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2637
2638 /* Wait for IO debug acknowledge */
2639 if (ipr_wait_iodbg_ack(ioa_cfg,
2640 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2641 dev_err(&ioa_cfg->pdev->dev,
2642 "IOA dump long data transfer timeout\n");
2643 return -EIO;
2644 }
2645
2646 /* Signal LDUMP interlocked - clear IO debug ack */
2647 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2648 ioa_cfg->regs.clr_interrupt_reg);
2649
2650 /* Write Mailbox with starting address */
2651 writel(start_addr, ioa_cfg->ioa_mailbox);
2652
2653 /* Signal address valid - clear IOA Reset alert */
2654 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2655 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2656
2657 for (i = 0; i < length_in_words; i++) {
2658 /* Wait for IO debug acknowledge */
2659 if (ipr_wait_iodbg_ack(ioa_cfg,
2660 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2661 dev_err(&ioa_cfg->pdev->dev,
2662 "IOA dump short data transfer timeout\n");
2663 return -EIO;
2664 }
2665
2666 /* Read data from mailbox and increment destination pointer */
2667 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2668 dest++;
2669
2670 /* For all but the last word of data, signal data received */
2671 if (i < (length_in_words - 1)) {
2672 /* Signal dump data received - Clear IO debug Ack */
2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2674 ioa_cfg->regs.clr_interrupt_reg);
2675 }
2676 }
2677
2678 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2679 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2680 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2681
2682 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2683 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2684
2685 /* Signal dump data received - Clear IO debug Ack */
2686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2687 ioa_cfg->regs.clr_interrupt_reg);
2688
2689 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2690 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2691 temp_pcii_reg =
214777ba 2692 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2693
2694 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2695 return 0;
2696
2697 udelay(10);
2698 delay += 10;
2699 }
2700
2701 return 0;
2702}
2703
2704#ifdef CONFIG_SCSI_IPR_DUMP
2705/**
2706 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2707 * @ioa_cfg: ioa config struct
2708 * @pci_address: adapter address
2709 * @length: length of data to copy
2710 *
2711 * Copy data from PCI adapter to kernel buffer.
2712 * Note: length MUST be a 4 byte multiple
2713 * Return value:
2714 * 0 on success / other on failure
2715 **/
2716static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2717 unsigned long pci_address, u32 length)
2718{
2719 int bytes_copied = 0;
2720 int cur_len, rc, rem_len, rem_page_len;
2721 __be32 *page;
2722 unsigned long lock_flags = 0;
2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2724
2725 while (bytes_copied < length &&
2726 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2727 if (ioa_dump->page_offset >= PAGE_SIZE ||
2728 ioa_dump->page_offset == 0) {
2729 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2730
2731 if (!page) {
2732 ipr_trace;
2733 return bytes_copied;
2734 }
2735
2736 ioa_dump->page_offset = 0;
2737 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2738 ioa_dump->next_page_index++;
2739 } else
2740 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2741
2742 rem_len = length - bytes_copied;
2743 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2744 cur_len = min(rem_len, rem_page_len);
2745
2746 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2747 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2748 rc = -EIO;
2749 } else {
2750 rc = ipr_get_ldump_data_section(ioa_cfg,
2751 pci_address + bytes_copied,
2752 &page[ioa_dump->page_offset / 4],
2753 (cur_len / sizeof(u32)));
2754 }
2755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2756
2757 if (!rc) {
2758 ioa_dump->page_offset += cur_len;
2759 bytes_copied += cur_len;
2760 } else {
2761 ipr_trace;
2762 break;
2763 }
2764 schedule();
2765 }
2766
2767 return bytes_copied;
2768}
2769
2770/**
2771 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2772 * @hdr: dump entry header struct
2773 *
2774 * Return value:
2775 * nothing
2776 **/
2777static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2778{
2779 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2780 hdr->num_elems = 1;
2781 hdr->offset = sizeof(*hdr);
2782 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2783}
2784
2785/**
2786 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2787 * @ioa_cfg: ioa config struct
2788 * @driver_dump: driver dump struct
2789 *
2790 * Return value:
2791 * nothing
2792 **/
2793static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2794 struct ipr_driver_dump *driver_dump)
2795{
2796 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2797
2798 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2799 driver_dump->ioa_type_entry.hdr.len =
2800 sizeof(struct ipr_dump_ioa_type_entry) -
2801 sizeof(struct ipr_dump_entry_header);
2802 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2803 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2804 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2805 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2806 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2807 ucode_vpd->minor_release[1];
2808 driver_dump->hdr.num_entries++;
2809}
2810
2811/**
2812 * ipr_dump_version_data - Fill in the driver version in the dump.
2813 * @ioa_cfg: ioa config struct
2814 * @driver_dump: driver dump struct
2815 *
2816 * Return value:
2817 * nothing
2818 **/
2819static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2820 struct ipr_driver_dump *driver_dump)
2821{
2822 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2823 driver_dump->version_entry.hdr.len =
2824 sizeof(struct ipr_dump_version_entry) -
2825 sizeof(struct ipr_dump_entry_header);
2826 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2827 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2828 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2829 driver_dump->hdr.num_entries++;
2830}
2831
2832/**
2833 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2834 * @ioa_cfg: ioa config struct
2835 * @driver_dump: driver dump struct
2836 *
2837 * Return value:
2838 * nothing
2839 **/
2840static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2841 struct ipr_driver_dump *driver_dump)
2842{
2843 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2844 driver_dump->trace_entry.hdr.len =
2845 sizeof(struct ipr_dump_trace_entry) -
2846 sizeof(struct ipr_dump_entry_header);
2847 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2848 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2849 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2850 driver_dump->hdr.num_entries++;
2851}
2852
2853/**
2854 * ipr_dump_location_data - Fill in the IOA location in the dump.
2855 * @ioa_cfg: ioa config struct
2856 * @driver_dump: driver dump struct
2857 *
2858 * Return value:
2859 * nothing
2860 **/
2861static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2862 struct ipr_driver_dump *driver_dump)
2863{
2864 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2865 driver_dump->location_entry.hdr.len =
2866 sizeof(struct ipr_dump_location_entry) -
2867 sizeof(struct ipr_dump_entry_header);
2868 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2869 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 2870 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 2871 driver_dump->hdr.num_entries++;
2872}
2873
2874/**
2875 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2876 * @ioa_cfg: ioa config struct
2877 * @dump: dump struct
2878 *
2879 * Return value:
2880 * nothing
2881 **/
2882static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2883{
2884 unsigned long start_addr, sdt_word;
2885 unsigned long lock_flags = 0;
2886 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2887 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2888 u32 num_entries, start_off, end_off;
2889 u32 bytes_to_copy, bytes_copied, rc;
2890 struct ipr_sdt *sdt;
dcbad00e 2891 int valid = 1;
1da177e4
LT		 2892 int i;
2893
2894 ENTER;
2895
2896 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2897
2898 if (ioa_cfg->sdt_state != GET_DUMP) {
2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2900 return;
2901 }
2902
2903 start_addr = readl(ioa_cfg->ioa_mailbox);
2904
dcbad00e 2905 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 2906 dev_err(&ioa_cfg->pdev->dev,
2907 "Invalid dump table format: %lx\n", start_addr);
2908 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2909 return;
2910 }
2911
2912 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2913
2914 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2915
2916 /* Initialize the overall dump header */
2917 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2918 driver_dump->hdr.num_entries = 1;
2919 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2920 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2921 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2922 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2923
2924 ipr_dump_version_data(ioa_cfg, driver_dump);
2925 ipr_dump_location_data(ioa_cfg, driver_dump);
2926 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2927 ipr_dump_trace_data(ioa_cfg, driver_dump);
2928
2929 /* Update dump_header */
2930 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2931
2932 /* IOA Dump entry */
2933 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 2934 ioa_dump->hdr.len = 0;
2935 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2936 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2937
2938 /* First entries in sdt are actually a list of dump addresses and
2939 lengths to gather the real dump data. sdt represents the pointer
2940 to the ioa generated dump table. Dump data will be extracted based
2941 on entries in this table */
2942 sdt = &ioa_dump->sdt;
2943
2944 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2945 sizeof(struct ipr_sdt) / sizeof(__be32));
2946
2947 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 2948 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2949 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 2950 dev_err(&ioa_cfg->pdev->dev,
2951 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2952 rc, be32_to_cpu(sdt->hdr.state));
2953 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2954 ioa_cfg->sdt_state = DUMP_OBTAINED;
2955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2956 return;
2957 }
2958
2959 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2960
2961 if (num_entries > IPR_NUM_SDT_ENTRIES)
2962 num_entries = IPR_NUM_SDT_ENTRIES;
2963
2964 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2965
2966 for (i = 0; i < num_entries; i++) {
2967 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2968 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2969 break;
2970 }
2971
2972 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 2973 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2974 if (ioa_cfg->sis64)
2975 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2976 else {
2977 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2978 end_off = be32_to_cpu(sdt->entry[i].end_token);
2979
2980 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2981 bytes_to_copy = end_off - start_off;
2982 else
2983 valid = 0;
2984 }
2985 if (valid) {
1da177e4
LT		 2986 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2987 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2988 continue;
2989 }
2990
2991 /* Copy data from adapter to driver buffers */
2992 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2993 bytes_to_copy);
2994
2995 ioa_dump->hdr.len += bytes_copied;
2996
2997 if (bytes_copied != bytes_to_copy) {
2998 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2999 break;
3000 }
3001 }
3002 }
3003 }
3004
3005 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3006
3007 /* Update dump_header */
3008 driver_dump->hdr.len += ioa_dump->hdr.len;
3009 wmb();
3010 ioa_cfg->sdt_state = DUMP_OBTAINED;
3011 LEAVE;
3012}
3013
3014#else
3015#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3016#endif
3017
3018/**
3019 * ipr_release_dump - Free adapter dump memory
3020 * @kref: kref struct
3021 *
3022 * Return value:
3023 * nothing
3024 **/
3025static void ipr_release_dump(struct kref *kref)
3026{
3027 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3028 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3029 unsigned long lock_flags = 0;
3030 int i;
3031
3032 ENTER;
3033 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3034 ioa_cfg->dump = NULL;
3035 ioa_cfg->sdt_state = INACTIVE;
3036 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3037
3038 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3039 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3040
3041 kfree(dump);
3042 LEAVE;
3043}
3044
3045/**
3046 * ipr_worker_thread - Worker thread
c4028958 3047 * @work: ioa config struct
1da177e4
LT		 3048 *
3049 * Called at task level from a work thread. This function takes care
3050 * of adding and removing device from the mid-layer as configuration
3051 * changes are detected by the adapter.
3052 *
3053 * Return value:
3054 * nothing
3055 **/
c4028958 3056static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3057{
3058 unsigned long lock_flags;
3059 struct ipr_resource_entry *res;
3060 struct scsi_device *sdev;
3061 struct ipr_dump *dump;
c4028958
DH		 3062 struct ipr_ioa_cfg *ioa_cfg =
3063 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3064 u8 bus, target, lun;
3065 int did_work;
3066
3067 ENTER;
3068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3069
3070 if (ioa_cfg->sdt_state == GET_DUMP) {
3071 dump = ioa_cfg->dump;
3072 if (!dump) {
3073 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3074 return;
3075 }
3076 kref_get(&dump->kref);
3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3078 ipr_get_ioa_dump(ioa_cfg, dump);
3079 kref_put(&dump->kref, ipr_release_dump);
3080
3081 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3082 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3083 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3084 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3085 return;
3086 }
3087
3088restart:
3089 do {
3090 did_work = 0;
3091 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3093 return;
3094 }
3095
3096 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3097 if (res->del_from_ml && res->sdev) {
3098 did_work = 1;
3099 sdev = res->sdev;
3100 if (!scsi_device_get(sdev)) {
1da177e4
LT		 3101 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3102 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3103 scsi_remove_device(sdev);
3104 scsi_device_put(sdev);
3105 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3106 }
3107 break;
3108 }
3109 }
3110 } while(did_work);
3111
3112 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3113 if (res->add_to_ml) {
3e7ebdfa
WB		 3114 bus = res->bus;
3115 target = res->target;
3116 lun = res->lun;
1121b794 3117 res->add_to_ml = 0;
1da177e4
LT		 3118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3119 scsi_add_device(ioa_cfg->host, bus, target, lun);
3120 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3121 goto restart;
3122 }
3123 }
3124
3125 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3126 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3127 LEAVE;
3128}
3129
3130#ifdef CONFIG_SCSI_IPR_TRACE
3131/**
3132 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3133 * @filp: open sysfs file
1da177e4 3134 * @kobj: kobject struct
91a69029 3135 * @bin_attr: bin_attribute struct
1da177e4
LT		 3136 * @buf: buffer
3137 * @off: offset
3138 * @count: buffer size
3139 *
3140 * Return value:
3141 * number of bytes printed to buffer
3142 **/
2c3c8bea 3143static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3144 struct bin_attribute *bin_attr,
3145 char *buf, loff_t off, size_t count)
1da177e4 3146{
ee959b00
TJ		 3147 struct device *dev = container_of(kobj, struct device, kobj);
3148 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3149 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3150 unsigned long lock_flags = 0;
d777aaf3 3151 ssize_t ret;
1da177e4
LT		 3152
3153 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3154 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3155 IPR_TRACE_SIZE);
1da177e4 3156 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3157
3158 return ret;
1da177e4
LT		 3159}
3160
3161static struct bin_attribute ipr_trace_attr = {
3162 .attr = {
3163 .name = "trace",
3164 .mode = S_IRUGO,
3165 },
3166 .size = 0,
3167 .read = ipr_read_trace,
3168};
3169#endif
3170
3171/**
3172 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3173 * @dev: class device struct
3174 * @buf: buffer
1da177e4
LT		 3175 *
3176 * Return value:
3177 * number of bytes printed to buffer
3178 **/
ee959b00
TJ		 3179static ssize_t ipr_show_fw_version(struct device *dev,
3180 struct device_attribute *attr, char *buf)
1da177e4 3181{
ee959b00 3182 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3183 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3184 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3185 unsigned long lock_flags = 0;
3186 int len;
3187
3188 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3189 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3190 ucode_vpd->major_release, ucode_vpd->card_type,
3191 ucode_vpd->minor_release[0],
3192 ucode_vpd->minor_release[1]);
3193 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3194 return len;
3195}
3196
ee959b00 3197static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3198 .attr = {
3199 .name = "fw_version",
3200 .mode = S_IRUGO,
3201 },
3202 .show = ipr_show_fw_version,
3203};
3204
3205/**
3206 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3207 * @dev: class device struct
3208 * @buf: buffer
1da177e4
LT		 3209 *
3210 * Return value:
3211 * number of bytes printed to buffer
3212 **/
ee959b00
TJ		 3213static ssize_t ipr_show_log_level(struct device *dev,
3214 struct device_attribute *attr, char *buf)
1da177e4 3215{
ee959b00 3216 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3217 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3218 unsigned long lock_flags = 0;
3219 int len;
3220
3221 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3222 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3223 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3224 return len;
3225}
3226
3227/**
3228 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3229 * @dev: class device struct
3230 * @buf: buffer
1da177e4
LT		 3231 *
3232 * Return value:
3233 * number of bytes printed to buffer
3234 **/
ee959b00
TJ		 3235static ssize_t ipr_store_log_level(struct device *dev,
3236 struct device_attribute *attr,
1da177e4
LT		 3237 const char *buf, size_t count)
3238{
ee959b00 3239 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3240 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3241 unsigned long lock_flags = 0;
3242
3243 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3244 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3245 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3246 return strlen(buf);
3247}
3248
ee959b00 3249static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3250 .attr = {
3251 .name = "log_level",
3252 .mode = S_IRUGO | S_IWUSR,
3253 },
3254 .show = ipr_show_log_level,
3255 .store = ipr_store_log_level
3256};
3257
3258/**
3259 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3260 * @dev: device struct
3261 * @buf: buffer
3262 * @count: buffer size
1da177e4
LT		 3263 *
3264 * This function will reset the adapter and wait a reasonable
3265 * amount of time for any errors that the adapter might log.
3266 *
3267 * Return value:
3268 * count on success / other on failure
3269 **/
ee959b00
TJ		 3270static ssize_t ipr_store_diagnostics(struct device *dev,
3271 struct device_attribute *attr,
1da177e4
LT		 3272 const char *buf, size_t count)
3273{
ee959b00 3274 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3275 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3276 unsigned long lock_flags = 0;
3277 int rc = count;
3278
3279 if (!capable(CAP_SYS_ADMIN))
3280 return -EACCES;
3281
1da177e4 3282 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3283 while(ioa_cfg->in_reset_reload) {
3284 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3285 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3286 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3287 }
3288
1da177e4
LT		 3289 ioa_cfg->errors_logged = 0;
3290 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3291
3292 if (ioa_cfg->in_reset_reload) {
3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3294 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3295
3296 /* Wait for a second for any errors to be logged */
3297 msleep(1000);
3298 } else {
3299 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3300 return -EIO;
3301 }
3302
3303 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3304 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3305 rc = -EIO;
3306 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3307
3308 return rc;
3309}
3310
ee959b00 3311static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3312 .attr = {
3313 .name = "run_diagnostics",
3314 .mode = S_IWUSR,
3315 },
3316 .store = ipr_store_diagnostics
3317};
3318
f37eb54b 3319/**
3320 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3321 * @class_dev: device struct
3322 * @buf: buffer
f37eb54b 3323 *
3324 * Return value:
3325 * number of bytes printed to buffer
3326 **/
ee959b00
TJ		 3327static ssize_t ipr_show_adapter_state(struct device *dev,
3328 struct device_attribute *attr, char *buf)
f37eb54b 3329{
ee959b00 3330 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3331 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3332 unsigned long lock_flags = 0;
3333 int len;
3334
3335 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3336 if (ioa_cfg->ioa_is_dead)
3337 len = snprintf(buf, PAGE_SIZE, "offline\n");
3338 else
3339 len = snprintf(buf, PAGE_SIZE, "online\n");
3340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3341 return len;
3342}
3343
3344/**
3345 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3346 * @dev: device struct
3347 * @buf: buffer
3348 * @count: buffer size
f37eb54b 3349 *
3350 * This function will change the adapter's state.
3351 *
3352 * Return value:
3353 * count on success / other on failure
3354 **/
ee959b00
TJ		 3355static ssize_t ipr_store_adapter_state(struct device *dev,
3356 struct device_attribute *attr,
f37eb54b 3357 const char *buf, size_t count)
3358{
ee959b00 3359 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3360 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3361 unsigned long lock_flags;
3362 int result = count;
3363
3364 if (!capable(CAP_SYS_ADMIN))
3365 return -EACCES;
3366
3367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3368 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3369 ioa_cfg->ioa_is_dead = 0;
3370 ioa_cfg->reset_retries = 0;
3371 ioa_cfg->in_ioa_bringdown = 0;
3372 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3373 }
3374 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3375 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3376
3377 return result;
3378}
3379
ee959b00 3380static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3381 .attr = {
49dd0961 3382 .name = "online_state",
f37eb54b 3383 .mode = S_IRUGO | S_IWUSR,
3384 },
3385 .show = ipr_show_adapter_state,
3386 .store = ipr_store_adapter_state
3387};
3388
1da177e4
LT		 3389/**
3390 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3391 * @dev: device struct
3392 * @buf: buffer
3393 * @count: buffer size
1da177e4
LT		 3394 *
3395 * This function will reset the adapter.
3396 *
3397 * Return value:
3398 * count on success / other on failure
3399 **/
ee959b00
TJ		 3400static ssize_t ipr_store_reset_adapter(struct device *dev,
3401 struct device_attribute *attr,
1da177e4
LT		 3402 const char *buf, size_t count)
3403{
ee959b00 3404 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3405 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3406 unsigned long lock_flags;
3407 int result = count;
3408
3409 if (!capable(CAP_SYS_ADMIN))
3410 return -EACCES;
3411
3412 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3413 if (!ioa_cfg->in_reset_reload)
3414 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3415 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3416 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3417
3418 return result;
3419}
3420
ee959b00 3421static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3422 .attr = {
3423 .name = "reset_host",
3424 .mode = S_IWUSR,
3425 },
3426 .store = ipr_store_reset_adapter
3427};
3428
3429/**
3430 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3431 * @buf_len: buffer length
3432 *
3433 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3434 * list to use for microcode download
3435 *
3436 * Return value:
3437 * pointer to sglist / NULL on failure
3438 **/
3439static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3440{
3441 int sg_size, order, bsize_elem, num_elem, i, j;
3442 struct ipr_sglist *sglist;
3443 struct scatterlist *scatterlist;
3444 struct page *page;
3445
3446 /* Get the minimum size per scatter/gather element */
3447 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3448
3449 /* Get the actual size per element */
3450 order = get_order(sg_size);
3451
3452 /* Determine the actual number of bytes per element */
3453 bsize_elem = PAGE_SIZE * (1 << order);
3454
3455 /* Determine the actual number of sg entries needed */
3456 if (buf_len % bsize_elem)
3457 num_elem = (buf_len / bsize_elem) + 1;
3458 else
3459 num_elem = buf_len / bsize_elem;
3460
3461 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3462 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3463 (sizeof(struct scatterlist) * (num_elem - 1)),
3464 GFP_KERNEL);
3465
3466 if (sglist == NULL) {
3467 ipr_trace;
3468 return NULL;
3469 }
3470
1da177e4 3471 scatterlist = sglist->scatterlist;
45711f1a 3472 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3473
3474 sglist->order = order;
3475 sglist->num_sg = num_elem;
3476
3477 /* Allocate a bunch of sg elements */
3478 for (i = 0; i < num_elem; i++) {
3479 page = alloc_pages(GFP_KERNEL, order);
3480 if (!page) {
3481 ipr_trace;
3482
3483 /* Free up what we already allocated */
3484 for (j = i - 1; j >= 0; j--)
45711f1a 3485 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3486 kfree(sglist);
3487 return NULL;
3488 }
3489
642f1490 3490 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3491 }
3492
3493 return sglist;
3494}
3495
3496/**
3497 * ipr_free_ucode_buffer - Frees a microcode download buffer
3498 * @p_dnld: scatter/gather list pointer
3499 *
3500 * Free a DMA'able ucode download buffer previously allocated with
3501 * ipr_alloc_ucode_buffer
3502 *
3503 * Return value:
3504 * nothing
3505 **/
3506static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3507{
3508 int i;
3509
3510 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3511 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3512
3513 kfree(sglist);
3514}
3515
3516/**
3517 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3518 * @sglist: scatter/gather list pointer
3519 * @buffer: buffer pointer
3520 * @len: buffer length
3521 *
3522 * Copy a microcode image from a user buffer into a buffer allocated by
3523 * ipr_alloc_ucode_buffer
3524 *
3525 * Return value:
3526 * 0 on success / other on failure
3527 **/
3528static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3529 u8 *buffer, u32 len)
3530{
3531 int bsize_elem, i, result = 0;
3532 struct scatterlist *scatterlist;
3533 void *kaddr;
3534
3535 /* Determine the actual number of bytes per element */
3536 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3537
3538 scatterlist = sglist->scatterlist;
3539
3540 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3541 struct page *page = sg_page(&scatterlist[i]);
3542
3543 kaddr = kmap(page);
1da177e4 3544 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3545 kunmap(page);
1da177e4
LT		 3546
3547 scatterlist[i].length = bsize_elem;
3548
3549 if (result != 0) {
3550 ipr_trace;
3551 return result;
3552 }
3553 }
3554
3555 if (len % bsize_elem) {
45711f1a
JA		 3556 struct page *page = sg_page(&scatterlist[i]);
3557
3558 kaddr = kmap(page);
1da177e4 3559 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3560 kunmap(page);
1da177e4
LT		 3561
3562 scatterlist[i].length = len % bsize_elem;
3563 }
3564
3565 sglist->buffer_len = len;
3566 return result;
3567}
3568
a32c055f
WB		 3569/**
3570 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3571 * @ipr_cmd: ipr command struct
3572 * @sglist: scatter/gather list
3573 *
3574 * Builds a microcode download IOA data list (IOADL).
3575 *
3576 **/
3577static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3578 struct ipr_sglist *sglist)
3579{
3580 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3581 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3582 struct scatterlist *scatterlist = sglist->scatterlist;
3583 int i;
3584
3585 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3586 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3587 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3588
3589 ioarcb->ioadl_len =
3590 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3591 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3592 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3593 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3594 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3595 }
3596
3597 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3598}
3599
1da177e4 3600/**
12baa420 3601 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3602 * @ipr_cmd: ipr command struct
3603 * @sglist: scatter/gather list
1da177e4 3604 *
12baa420 3605 * Builds a microcode download IOA data list (IOADL).
1da177e4 3606 *
1da177e4 3607 **/
12baa420 3608static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3609 struct ipr_sglist *sglist)
1da177e4 3610{
1da177e4 3611 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3612 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3613 struct scatterlist *scatterlist = sglist->scatterlist;
3614 int i;
3615
12baa420 3616 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3617 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3618 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3619
3620 ioarcb->ioadl_len =
1da177e4
LT		 3621 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3622
3623 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3624 ioadl[i].flags_and_data_len =
3625 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3626 ioadl[i].address =
3627 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3628 }
3629
12baa420 3630 ioadl[i-1].flags_and_data_len |=
3631 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3632}
3633
3634/**
3635 * ipr_update_ioa_ucode - Update IOA's microcode
3636 * @ioa_cfg: ioa config struct
3637 * @sglist: scatter/gather list
3638 *
3639 * Initiate an adapter reset to update the IOA's microcode
3640 *
3641 * Return value:
3642 * 0 on success / -EIO on failure
3643 **/
3644static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3645 struct ipr_sglist *sglist)
3646{
3647 unsigned long lock_flags;
3648
3649 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3650 while(ioa_cfg->in_reset_reload) {
3651 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3652 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3654 }
12baa420 3655
3656 if (ioa_cfg->ucode_sglist) {
3657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3658 dev_err(&ioa_cfg->pdev->dev,
3659 "Microcode download already in progress\n");
3660 return -EIO;
1da177e4 3661 }
12baa420 3662
3663 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3664 sglist->num_sg, DMA_TO_DEVICE);
3665
3666 if (!sglist->num_dma_sg) {
3667 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3668 dev_err(&ioa_cfg->pdev->dev,
3669 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3670 return -EIO;
3671 }
3672
12baa420 3673 ioa_cfg->ucode_sglist = sglist;
3674 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3675 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3676 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3677
3678 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3679 ioa_cfg->ucode_sglist = NULL;
3680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3681 return 0;
3682}
3683
3684/**
3685 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3686 * @class_dev: device struct
3687 * @buf: buffer
3688 * @count: buffer size
1da177e4
LT		 3689 *
3690 * This function will update the firmware on the adapter.
3691 *
3692 * Return value:
3693 * count on success / other on failure
3694 **/
ee959b00
TJ		 3695static ssize_t ipr_store_update_fw(struct device *dev,
3696 struct device_attribute *attr,
3697 const char *buf, size_t count)
1da177e4 3698{
ee959b00 3699 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3700 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3701 struct ipr_ucode_image_header *image_hdr;
3702 const struct firmware *fw_entry;
3703 struct ipr_sglist *sglist;
1da177e4
LT		 3704 char fname[100];
3705 char *src;
3706 int len, result, dnld_size;
3707
3708 if (!capable(CAP_SYS_ADMIN))
3709 return -EACCES;
3710
3711 len = snprintf(fname, 99, "%s", buf);
3712 fname[len-1] = '\0';
3713
3714 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3715 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3716 return -EIO;
3717 }
3718
3719 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3720
3721 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3722 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3723 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3724 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3725 release_firmware(fw_entry);
3726 return -EINVAL;
3727 }
3728
3729 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3730 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3731 sglist = ipr_alloc_ucode_buffer(dnld_size);
3732
3733 if (!sglist) {
3734 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3735 release_firmware(fw_entry);
3736 return -ENOMEM;
3737 }
3738
3739 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3740
3741 if (result) {
3742 dev_err(&ioa_cfg->pdev->dev,
3743 "Microcode buffer copy to DMA buffer failed\n");
12baa420 3744 goto out;
1da177e4
LT		 3745 }
3746
12baa420 3747 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 3748
12baa420 3749 if (!result)
3750 result = count;
3751out:
1da177e4
LT		 3752 ipr_free_ucode_buffer(sglist);
3753 release_firmware(fw_entry);
12baa420 3754 return result;
1da177e4
LT		 3755}
3756
ee959b00 3757static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 3758 .attr = {
3759 .name = "update_fw",
3760 .mode = S_IWUSR,
3761 },
3762 .store = ipr_store_update_fw
3763};
3764
75576bb9
WB		 3765/**
3766 * ipr_show_fw_type - Show the adapter's firmware type.
3767 * @dev: class device struct
3768 * @buf: buffer
3769 *
3770 * Return value:
3771 * number of bytes printed to buffer
3772 **/
3773static ssize_t ipr_show_fw_type(struct device *dev,
3774 struct device_attribute *attr, char *buf)
3775{
3776 struct Scsi_Host *shost = class_to_shost(dev);
3777 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3778 unsigned long lock_flags = 0;
3779 int len;
3780
3781 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3782 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3783 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3784 return len;
3785}
3786
3787static struct device_attribute ipr_ioa_fw_type_attr = {
3788 .attr = {
3789 .name = "fw_type",
3790 .mode = S_IRUGO,
3791 },
3792 .show = ipr_show_fw_type
3793};
3794
ee959b00 3795static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 3796 &ipr_fw_version_attr,
3797 &ipr_log_level_attr,
3798 &ipr_diagnostics_attr,
f37eb54b 3799 &ipr_ioa_state_attr,
1da177e4
LT		 3800 &ipr_ioa_reset_attr,
3801 &ipr_update_fw_attr,
75576bb9 3802 &ipr_ioa_fw_type_attr,
1da177e4
LT		 3803 NULL,
3804};
3805
3806#ifdef CONFIG_SCSI_IPR_DUMP
3807/**
3808 * ipr_read_dump - Dump the adapter
2c3c8bea 3809 * @filp: open sysfs file
1da177e4 3810 * @kobj: kobject struct
91a69029 3811 * @bin_attr: bin_attribute struct
1da177e4
LT		 3812 * @buf: buffer
3813 * @off: offset
3814 * @count: buffer size
3815 *
3816 * Return value:
3817 * number of bytes printed to buffer
3818 **/
2c3c8bea 3819static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3820 struct bin_attribute *bin_attr,
3821 char *buf, loff_t off, size_t count)
1da177e4 3822{
ee959b00 3823 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 3824 struct Scsi_Host *shost = class_to_shost(cdev);
3825 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3826 struct ipr_dump *dump;
3827 unsigned long lock_flags = 0;
3828 char *src;
3829 int len;
3830 size_t rc = count;
3831
3832 if (!capable(CAP_SYS_ADMIN))
3833 return -EACCES;
3834
3835 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3836 dump = ioa_cfg->dump;
3837
3838 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3839 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3840 return 0;
3841 }
3842 kref_get(&dump->kref);
3843 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3844
3845 if (off > dump->driver_dump.hdr.len) {
3846 kref_put(&dump->kref, ipr_release_dump);
3847 return 0;
3848 }
3849
3850 if (off + count > dump->driver_dump.hdr.len) {
3851 count = dump->driver_dump.hdr.len - off;
3852 rc = count;
3853 }
3854
3855 if (count && off < sizeof(dump->driver_dump)) {
3856 if (off + count > sizeof(dump->driver_dump))
3857 len = sizeof(dump->driver_dump) - off;
3858 else
3859 len = count;
3860 src = (u8 *)&dump->driver_dump + off;
3861 memcpy(buf, src, len);
3862 buf += len;
3863 off += len;
3864 count -= len;
3865 }
3866
3867 off -= sizeof(dump->driver_dump);
3868
3869 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3870 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3871 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3872 else
3873 len = count;
3874 src = (u8 *)&dump->ioa_dump + off;
3875 memcpy(buf, src, len);
3876 buf += len;
3877 off += len;
3878 count -= len;
3879 }
3880
3881 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3882
3883 while (count) {
3884 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3885 len = PAGE_ALIGN(off) - off;
3886 else
3887 len = count;
3888 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3889 src += off & ~PAGE_MASK;
3890 memcpy(buf, src, len);
3891 buf += len;
3892 off += len;
3893 count -= len;
3894 }
3895
3896 kref_put(&dump->kref, ipr_release_dump);
3897 return rc;
3898}
3899
3900/**
3901 * ipr_alloc_dump - Prepare for adapter dump
3902 * @ioa_cfg: ioa config struct
3903 *
3904 * Return value:
3905 * 0 on success / other on failure
3906 **/
3907static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3908{
3909 struct ipr_dump *dump;
3910 unsigned long lock_flags = 0;
3911
0bc42e35 3912 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 3913
3914 if (!dump) {
3915 ipr_err("Dump memory allocation failed\n");
3916 return -ENOMEM;
3917 }
3918
1da177e4
LT		 3919 kref_init(&dump->kref);
3920 dump->ioa_cfg = ioa_cfg;
3921
3922 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3923
3924 if (INACTIVE != ioa_cfg->sdt_state) {
3925 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3926 kfree(dump);
3927 return 0;
3928 }
3929
3930 ioa_cfg->dump = dump;
3931 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3932 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3933 ioa_cfg->dump_taken = 1;
3934 schedule_work(&ioa_cfg->work_q);
3935 }
3936 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3937
1da177e4
LT		 3938 return 0;
3939}
3940
3941/**
3942 * ipr_free_dump - Free adapter dump memory
3943 * @ioa_cfg: ioa config struct
3944 *
3945 * Return value:
3946 * 0 on success / other on failure
3947 **/
3948static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3949{
3950 struct ipr_dump *dump;
3951 unsigned long lock_flags = 0;
3952
3953 ENTER;
3954
3955 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3956 dump = ioa_cfg->dump;
3957 if (!dump) {
3958 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3959 return 0;
3960 }
3961
3962 ioa_cfg->dump = NULL;
3963 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3964
3965 kref_put(&dump->kref, ipr_release_dump);
3966
3967 LEAVE;
3968 return 0;
3969}
3970
3971/**
3972 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 3973 * @filp: open sysfs file
1da177e4 3974 * @kobj: kobject struct
91a69029 3975 * @bin_attr: bin_attribute struct
1da177e4
LT		 3976 * @buf: buffer
3977 * @off: offset
3978 * @count: buffer size
3979 *
3980 * Return value:
3981 * number of bytes printed to buffer
3982 **/
2c3c8bea 3983static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3984 struct bin_attribute *bin_attr,
3985 char *buf, loff_t off, size_t count)
1da177e4 3986{
ee959b00 3987 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 3988 struct Scsi_Host *shost = class_to_shost(cdev);
3989 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3990 int rc;
3991
3992 if (!capable(CAP_SYS_ADMIN))
3993 return -EACCES;
3994
3995 if (buf[0] == '1')
3996 rc = ipr_alloc_dump(ioa_cfg);
3997 else if (buf[0] == '0')
3998 rc = ipr_free_dump(ioa_cfg);
3999 else
4000 return -EINVAL;
4001
4002 if (rc)
4003 return rc;
4004 else
4005 return count;
4006}
4007
4008static struct bin_attribute ipr_dump_attr = {
4009 .attr = {
4010 .name = "dump",
4011 .mode = S_IRUSR | S_IWUSR,
4012 },
4013 .size = 0,
4014 .read = ipr_read_dump,
4015 .write = ipr_write_dump
4016};
4017#else
4018static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4019#endif
4020
4021/**
4022 * ipr_change_queue_depth - Change the device's queue depth
4023 * @sdev: scsi device struct
4024 * @qdepth: depth to set
e881a172 4025 * @reason: calling context
1da177e4
LT		 4026 *
4027 * Return value:
4028 * actual depth set
4029 **/
e881a172
MC		 4030static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4031 int reason)
1da177e4 4032{
35a39691
BK		 4033 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4034 struct ipr_resource_entry *res;
4035 unsigned long lock_flags = 0;
4036
e881a172
MC		 4037 if (reason != SCSI_QDEPTH_DEFAULT)
4038 return -EOPNOTSUPP;
4039
35a39691
BK		 4040 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4041 res = (struct ipr_resource_entry *)sdev->hostdata;
4042
4043 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4044 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4045 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4046
1da177e4
LT		 4047 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4048 return sdev->queue_depth;
4049}
4050
4051/**
4052 * ipr_change_queue_type - Change the device's queue type
4053 * @dsev: scsi device struct
4054 * @tag_type: type of tags to use
4055 *
4056 * Return value:
4057 * actual queue type set
4058 **/
4059static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4060{
4061 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4062 struct ipr_resource_entry *res;
4063 unsigned long lock_flags = 0;
4064
4065 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4066 res = (struct ipr_resource_entry *)sdev->hostdata;
4067
4068 if (res) {
4069 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4070 /*
4071 * We don't bother quiescing the device here since the
4072 * adapter firmware does it for us.
4073 */
4074 scsi_set_tag_type(sdev, tag_type);
4075
4076 if (tag_type)
4077 scsi_activate_tcq(sdev, sdev->queue_depth);
4078 else
4079 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4080 } else
4081 tag_type = 0;
4082 } else
4083 tag_type = 0;
4084
4085 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4086 return tag_type;
4087}
4088
4089/**
4090 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4091 * @dev: device struct
46d74563 4092 * @attr: device attribute structure
1da177e4
LT		 4093 * @buf: buffer
4094 *
4095 * Return value:
4096 * number of bytes printed to buffer
4097 **/
10523b3b 4098static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4099{
4100 struct scsi_device *sdev = to_scsi_device(dev);
4101 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4102 struct ipr_resource_entry *res;
4103 unsigned long lock_flags = 0;
4104 ssize_t len = -ENXIO;
4105
4106 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4107 res = (struct ipr_resource_entry *)sdev->hostdata;
4108 if (res)
3e7ebdfa 4109 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4110 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4111 return len;
4112}
4113
4114static struct device_attribute ipr_adapter_handle_attr = {
4115 .attr = {
4116 .name = "adapter_handle",
4117 .mode = S_IRUSR,
4118 },
4119 .show = ipr_show_adapter_handle
4120};
4121
3e7ebdfa 4122/**
5adcbeb3
WB		 4123 * ipr_show_resource_path - Show the resource path or the resource address for
4124 * this device.
3e7ebdfa 4125 * @dev: device struct
46d74563 4126 * @attr: device attribute structure
3e7ebdfa
WB		 4127 * @buf: buffer
4128 *
4129 * Return value:
4130 * number of bytes printed to buffer
4131 **/
4132static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4133{
4134 struct scsi_device *sdev = to_scsi_device(dev);
4135 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4136 struct ipr_resource_entry *res;
4137 unsigned long lock_flags = 0;
4138 ssize_t len = -ENXIO;
4139 char buffer[IPR_MAX_RES_PATH_LENGTH];
4140
4141 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4142 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4143 if (res && ioa_cfg->sis64)
3e7ebdfa 4144 len = snprintf(buf, PAGE_SIZE, "%s\n",
5adcbeb3
WB		 4145 ipr_format_res_path(res->res_path, buffer,
4146 sizeof(buffer)));
4147 else if (res)
4148 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4149 res->bus, res->target, res->lun);
4150
3e7ebdfa
WB		 4151 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4152 return len;
4153}
4154
4155static struct device_attribute ipr_resource_path_attr = {
4156 .attr = {
4157 .name = "resource_path",
75576bb9 4158 .mode = S_IRUGO,
3e7ebdfa
WB		 4159 },
4160 .show = ipr_show_resource_path
4161};
4162
46d74563
WB		 4163/**
4164 * ipr_show_device_id - Show the device_id for this device.
4165 * @dev: device struct
4166 * @attr: device attribute structure
4167 * @buf: buffer
4168 *
4169 * Return value:
4170 * number of bytes printed to buffer
4171 **/
4172static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4173{
4174 struct scsi_device *sdev = to_scsi_device(dev);
4175 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4176 struct ipr_resource_entry *res;
4177 unsigned long lock_flags = 0;
4178 ssize_t len = -ENXIO;
4179
4180 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4181 res = (struct ipr_resource_entry *)sdev->hostdata;
4182 if (res && ioa_cfg->sis64)
4183 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4184 else if (res)
4185 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4186
4187 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4188 return len;
4189}
4190
4191static struct device_attribute ipr_device_id_attr = {
4192 .attr = {
4193 .name = "device_id",
4194 .mode = S_IRUGO,
4195 },
4196 .show = ipr_show_device_id
4197};
4198
75576bb9
WB		 4199/**
4200 * ipr_show_resource_type - Show the resource type for this device.
4201 * @dev: device struct
46d74563 4202 * @attr: device attribute structure
75576bb9
WB		 4203 * @buf: buffer
4204 *
4205 * Return value:
4206 * number of bytes printed to buffer
4207 **/
4208static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4209{
4210 struct scsi_device *sdev = to_scsi_device(dev);
4211 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4212 struct ipr_resource_entry *res;
4213 unsigned long lock_flags = 0;
4214 ssize_t len = -ENXIO;
4215
4216 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4217 res = (struct ipr_resource_entry *)sdev->hostdata;
4218
4219 if (res)
4220 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4221
4222 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4223 return len;
4224}
4225
4226static struct device_attribute ipr_resource_type_attr = {
4227 .attr = {
4228 .name = "resource_type",
4229 .mode = S_IRUGO,
4230 },
4231 .show = ipr_show_resource_type
4232};
4233
1da177e4
LT		 4234static struct device_attribute *ipr_dev_attrs[] = {
4235 &ipr_adapter_handle_attr,
3e7ebdfa 4236 &ipr_resource_path_attr,
46d74563 4237 &ipr_device_id_attr,
75576bb9 4238 &ipr_resource_type_attr,
1da177e4
LT		 4239 NULL,
4240};
4241
4242/**
4243 * ipr_biosparam - Return the HSC mapping
4244 * @sdev: scsi device struct
4245 * @block_device: block device pointer
4246 * @capacity: capacity of the device
4247 * @parm: Array containing returned HSC values.
4248 *
4249 * This function generates the HSC parms that fdisk uses.
4250 * We want to make sure we return something that places partitions
4251 * on 4k boundaries for best performance with the IOA.
4252 *
4253 * Return value:
4254 * 0 on success
4255 **/
4256static int ipr_biosparam(struct scsi_device *sdev,
4257 struct block_device *block_device,
4258 sector_t capacity, int *parm)
4259{
4260 int heads, sectors;
4261 sector_t cylinders;
4262
4263 heads = 128;
4264 sectors = 32;
4265
4266 cylinders = capacity;
4267 sector_div(cylinders, (128 * 32));
4268
4269 /* return result */
4270 parm[0] = heads;
4271 parm[1] = sectors;
4272 parm[2] = cylinders;
4273
4274 return 0;
4275}
4276
35a39691
BK		 4277/**
4278 * ipr_find_starget - Find target based on bus/target.
4279 * @starget: scsi target struct
4280 *
4281 * Return value:
4282 * resource entry pointer if found / NULL if not found
4283 **/
4284static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4285{
4286 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4287 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4288 struct ipr_resource_entry *res;
4289
4290 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4291 if ((res->bus == starget->channel) &&
4292 (res->target == starget->id) &&
4293 (res->lun == 0)) {
35a39691
BK		 4294 return res;
4295 }
4296 }
4297
4298 return NULL;
4299}
4300
4301static struct ata_port_info sata_port_info;
4302
4303/**
4304 * ipr_target_alloc - Prepare for commands to a SCSI target
4305 * @starget: scsi target struct
4306 *
4307 * If the device is a SATA device, this function allocates an
4308 * ATA port with libata, else it does nothing.
4309 *
4310 * Return value:
4311 * 0 on success / non-0 on failure
4312 **/
4313static int ipr_target_alloc(struct scsi_target *starget)
4314{
4315 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4316 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4317 struct ipr_sata_port *sata_port;
4318 struct ata_port *ap;
4319 struct ipr_resource_entry *res;
4320 unsigned long lock_flags;
4321
4322 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4323 res = ipr_find_starget(starget);
4324 starget->hostdata = NULL;
4325
4326 if (res && ipr_is_gata(res)) {
4327 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4328 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4329 if (!sata_port)
4330 return -ENOMEM;
4331
4332 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4333 if (ap) {
4334 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4335 sata_port->ioa_cfg = ioa_cfg;
4336 sata_port->ap = ap;
4337 sata_port->res = res;
4338
4339 res->sata_port = sata_port;
4340 ap->private_data = sata_port;
4341 starget->hostdata = sata_port;
4342 } else {
4343 kfree(sata_port);
4344 return -ENOMEM;
4345 }
4346 }
4347 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4348
4349 return 0;
4350}
4351
4352/**
4353 * ipr_target_destroy - Destroy a SCSI target
4354 * @starget: scsi target struct
4355 *
4356 * If the device was a SATA device, this function frees the libata
4357 * ATA port, else it does nothing.
4358 *
4359 **/
4360static void ipr_target_destroy(struct scsi_target *starget)
4361{
4362 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4363 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4364 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4365
4366 if (ioa_cfg->sis64) {
4367 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4368 clear_bit(starget->id, ioa_cfg->array_ids);
4369 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4370 clear_bit(starget->id, ioa_cfg->vset_ids);
4371 else if (starget->channel == 0)
4372 clear_bit(starget->id, ioa_cfg->target_ids);
4373 }
35a39691
BK		 4374
4375 if (sata_port) {
4376 starget->hostdata = NULL;
4377 ata_sas_port_destroy(sata_port->ap);
4378 kfree(sata_port);
4379 }
4380}
4381
4382/**
4383 * ipr_find_sdev - Find device based on bus/target/lun.
4384 * @sdev: scsi device struct
4385 *
4386 * Return value:
4387 * resource entry pointer if found / NULL if not found
4388 **/
4389static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4390{
4391 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4392 struct ipr_resource_entry *res;
4393
4394 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4395 if ((res->bus == sdev->channel) &&
4396 (res->target == sdev->id) &&
4397 (res->lun == sdev->lun))
35a39691
BK		 4398 return res;
4399 }
4400
4401 return NULL;
4402}
4403
1da177e4
LT		 4404/**
4405 * ipr_slave_destroy - Unconfigure a SCSI device
4406 * @sdev: scsi device struct
4407 *
4408 * Return value:
4409 * nothing
4410 **/
4411static void ipr_slave_destroy(struct scsi_device *sdev)
4412{
4413 struct ipr_resource_entry *res;
4414 struct ipr_ioa_cfg *ioa_cfg;
4415 unsigned long lock_flags = 0;
4416
4417 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4418
4419 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4420 res = (struct ipr_resource_entry *) sdev->hostdata;
4421 if (res) {
35a39691 4422 if (res->sata_port)
3e4ec344 4423 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4424 sdev->hostdata = NULL;
4425 res->sdev = NULL;
35a39691 4426 res->sata_port = NULL;
1da177e4
LT		 4427 }
4428 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4429}
4430
4431/**
4432 * ipr_slave_configure - Configure a SCSI device
4433 * @sdev: scsi device struct
4434 *
4435 * This function configures the specified scsi device.
4436 *
4437 * Return value:
4438 * 0 on success
4439 **/
4440static int ipr_slave_configure(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;
dd406ef8 4444 struct ata_port *ap = NULL;
1da177e4 4445 unsigned long lock_flags = 0;
3e7ebdfa 4446 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4447
4448 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4449 res = sdev->hostdata;
4450 if (res) {
4451 if (ipr_is_af_dasd_device(res))
4452 sdev->type = TYPE_RAID;
0726ce26 4453 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4454 sdev->scsi_level = 4;
0726ce26 4455 sdev->no_uld_attach = 1;
4456 }
1da177e4 4457 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4458 blk_queue_rq_timeout(sdev->request_queue,
4459 IPR_VSET_RW_TIMEOUT);
086fa5ff 4460 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4461 }
dd406ef8
BK		 4462 if (ipr_is_gata(res) && res->sata_port)
4463 ap = res->sata_port->ap;
4464 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4465
4466 if (ap) {
35a39691 4467 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8
BK		 4468 ata_sas_slave_configure(sdev, ap);
4469 } else
35a39691 4470 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3e7ebdfa
WB		 4471 if (ioa_cfg->sis64)
4472 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
5adcbeb3
WB		 4473 ipr_format_res_path(res->res_path, buffer,
4474 sizeof(buffer)));
dd406ef8 4475 return 0;
1da177e4
LT		 4476 }
4477 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4478 return 0;
4479}
4480
35a39691
BK		 4481/**
4482 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4483 * @sdev: scsi device struct
4484 *
4485 * This function initializes an ATA port so that future commands
4486 * sent through queuecommand will work.
4487 *
4488 * Return value:
4489 * 0 on success
4490 **/
4491static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4492{
4493 struct ipr_sata_port *sata_port = NULL;
4494 int rc = -ENXIO;
4495
4496 ENTER;
4497 if (sdev->sdev_target)
4498 sata_port = sdev->sdev_target->hostdata;
4499 if (sata_port)
4500 rc = ata_sas_port_init(sata_port->ap);
4501 if (rc)
4502 ipr_slave_destroy(sdev);
4503
4504 LEAVE;
4505 return rc;
4506}
4507
1da177e4
LT		 4508/**
4509 * ipr_slave_alloc - Prepare for commands to a device.
4510 * @sdev: scsi device struct
4511 *
4512 * This function saves a pointer to the resource entry
4513 * in the scsi device struct if the device exists. We
4514 * can then use this pointer in ipr_queuecommand when
4515 * handling new commands.
4516 *
4517 * Return value:
692aebfc 4518 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4519 **/
4520static int ipr_slave_alloc(struct scsi_device *sdev)
4521{
4522 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4523 struct ipr_resource_entry *res;
4524 unsigned long lock_flags;
692aebfc 4525 int rc = -ENXIO;
1da177e4
LT		 4526
4527 sdev->hostdata = NULL;
4528
4529 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4530
35a39691
BK		 4531 res = ipr_find_sdev(sdev);
4532 if (res) {
4533 res->sdev = sdev;
4534 res->add_to_ml = 0;
4535 res->in_erp = 0;
4536 sdev->hostdata = res;
4537 if (!ipr_is_naca_model(res))
4538 res->needs_sync_complete = 1;
4539 rc = 0;
4540 if (ipr_is_gata(res)) {
4541 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4542 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4543 }
4544 }
4545
4546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4547
692aebfc 4548 return rc;
1da177e4
LT		 4549}
4550
4551/**
4552 * ipr_eh_host_reset - Reset the host adapter
4553 * @scsi_cmd: scsi command struct
4554 *
4555 * Return value:
4556 * SUCCESS / FAILED
4557 **/
df0ae249 4558static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4559{
4560 struct ipr_ioa_cfg *ioa_cfg;
4561 int rc;
4562
4563 ENTER;
4564 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4565
4566 dev_err(&ioa_cfg->pdev->dev,
4567 "Adapter being reset as a result of error recovery.\n");
4568
4569 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4570 ioa_cfg->sdt_state = GET_DUMP;
4571
4572 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4573
4574 LEAVE;
4575 return rc;
4576}
4577
df0ae249
JG		 4578static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4579{
4580 int rc;
4581
4582 spin_lock_irq(cmd->device->host->host_lock);
4583 rc = __ipr_eh_host_reset(cmd);
4584 spin_unlock_irq(cmd->device->host->host_lock);
4585
4586 return rc;
4587}
4588
c6513096
BK		 4589/**
4590 * ipr_device_reset - Reset the device
4591 * @ioa_cfg: ioa config struct
4592 * @res: resource entry struct
4593 *
4594 * This function issues a device reset to the affected device.
4595 * If the device is a SCSI device, a LUN reset will be sent
4596 * to the device first. If that does not work, a target reset
35a39691
BK		 4597 * will be sent. If the device is a SATA device, a PHY reset will
4598 * be sent.
c6513096
BK		 4599 *
4600 * Return value:
4601 * 0 on success / non-zero on failure
4602 **/
4603static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4604 struct ipr_resource_entry *res)
4605{
4606 struct ipr_cmnd *ipr_cmd;
4607 struct ipr_ioarcb *ioarcb;
4608 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4609 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4610 u32 ioasc;
4611
4612 ENTER;
4613 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4614 ioarcb = &ipr_cmd->ioarcb;
4615 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4616
4617 if (ipr_cmd->ioa_cfg->sis64) {
4618 regs = &ipr_cmd->i.ata_ioadl.regs;
4619 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4620 } else
4621 regs = &ioarcb->u.add_data.u.regs;
c6513096 4622
3e7ebdfa 4623 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4624 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4625 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4626 if (ipr_is_gata(res)) {
4627 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4628 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4629 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4630 }
c6513096
BK		 4631
4632 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4633 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
c6513096 4634 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
96d21f00
WB		 4635 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4636 if (ipr_cmd->ioa_cfg->sis64)
4637 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4638 sizeof(struct ipr_ioasa_gata));
4639 else
4640 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4641 sizeof(struct ipr_ioasa_gata));
4642 }
c6513096
BK		 4643
4644 LEAVE;
4645 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4646}
4647
35a39691
BK		 4648/**
4649 * ipr_sata_reset - Reset the SATA port
cc0680a5 4650 * @link: SATA link to reset
35a39691
BK		 4651 * @classes: class of the attached device
4652 *
cc0680a5 4653 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4654 *
4655 * Return value:
4656 * 0 on success / non-zero on failure
4657 **/
cc0680a5 4658static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4659 unsigned long deadline)
35a39691 4660{
cc0680a5 4661 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4662 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4663 struct ipr_resource_entry *res;
4664 unsigned long lock_flags = 0;
4665 int rc = -ENXIO;
4666
4667 ENTER;
4668 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
73d98ff0
BK		 4669 while(ioa_cfg->in_reset_reload) {
4670 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4671 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4672 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4673 }
4674
35a39691
BK		 4675 res = sata_port->res;
4676 if (res) {
4677 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4678 *classes = res->ata_class;
35a39691
BK		 4679 }
4680
4681 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4682 LEAVE;
4683 return rc;
4684}
4685
1da177e4
LT		 4686/**
4687 * ipr_eh_dev_reset - Reset the device
4688 * @scsi_cmd: scsi command struct
4689 *
4690 * This function issues a device reset to the affected device.
4691 * A LUN reset will be sent to the device first. If that does
4692 * not work, a target reset will be sent.
4693 *
4694 * Return value:
4695 * SUCCESS / FAILED
4696 **/
94d0e7b8 4697static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4698{
4699 struct ipr_cmnd *ipr_cmd;
4700 struct ipr_ioa_cfg *ioa_cfg;
4701 struct ipr_resource_entry *res;
35a39691
BK		 4702 struct ata_port *ap;
4703 int rc = 0;
1da177e4
LT		 4704
4705 ENTER;
4706 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4707 res = scsi_cmd->device->hostdata;
4708
eeb88307 4709 if (!res)
1da177e4
LT		 4710 return FAILED;
4711
4712 /*
4713 * If we are currently going through reset/reload, return failed. This will force the
4714 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4715 * reset to complete
4716 */
4717 if (ioa_cfg->in_reset_reload)
4718 return FAILED;
4719 if (ioa_cfg->ioa_is_dead)
4720 return FAILED;
4721
4722 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4723 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
1da177e4
LT		 4724 if (ipr_cmd->scsi_cmd)
4725 ipr_cmd->done = ipr_scsi_eh_done;
24d6f2b5
BK		 4726 if (ipr_cmd->qc)
4727 ipr_cmd->done = ipr_sata_eh_done;
7402ecef
BK		 4728 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4729 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4730 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4731 }
1da177e4
LT		 4732 }
4733 }
4734
4735 res->resetting_device = 1;
fb3ed3cb 4736 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 4737
4738 if (ipr_is_gata(res) && res->sata_port) {
4739 ap = res->sata_port->ap;
4740 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 4741 ata_std_error_handler(ap);
35a39691 4742 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26
BK		 4743
4744 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4745 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5af23d26
BK		 4746 rc = -EIO;
4747 break;
4748 }
4749 }
35a39691
BK		 4750 } else
4751 rc = ipr_device_reset(ioa_cfg, res);
1da177e4
LT		 4752 res->resetting_device = 0;
4753
1da177e4 4754 LEAVE;
c6513096 4755 return (rc ? FAILED : SUCCESS);
1da177e4
LT		 4756}
4757
94d0e7b8
JG		 4758static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4759{
4760 int rc;
4761
4762 spin_lock_irq(cmd->device->host->host_lock);
4763 rc = __ipr_eh_dev_reset(cmd);
4764 spin_unlock_irq(cmd->device->host->host_lock);
4765
4766 return rc;
4767}
4768
1da177e4
LT		 4769/**
4770 * ipr_bus_reset_done - Op done function for bus reset.
4771 * @ipr_cmd: ipr command struct
4772 *
4773 * This function is the op done function for a bus reset
4774 *
4775 * Return value:
4776 * none
4777 **/
4778static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4779{
4780 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4781 struct ipr_resource_entry *res;
4782
4783 ENTER;
3e7ebdfa
WB		 4784 if (!ioa_cfg->sis64)
4785 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4786 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4787 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4788 break;
4789 }
1da177e4 4790 }
1da177e4
LT		 4791
4792 /*
4793 * If abort has not completed, indicate the reset has, else call the
4794 * abort's done function to wake the sleeping eh thread
4795 */
4796 if (ipr_cmd->sibling->sibling)
4797 ipr_cmd->sibling->sibling = NULL;
4798 else
4799 ipr_cmd->sibling->done(ipr_cmd->sibling);
4800
4801 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4802 LEAVE;
4803}
4804
4805/**
4806 * ipr_abort_timeout - An abort task has timed out
4807 * @ipr_cmd: ipr command struct
4808 *
4809 * This function handles when an abort task times out. If this
4810 * happens we issue a bus reset since we have resources tied
4811 * up that must be freed before returning to the midlayer.
4812 *
4813 * Return value:
4814 * none
4815 **/
4816static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4817{
4818 struct ipr_cmnd *reset_cmd;
4819 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4820 struct ipr_cmd_pkt *cmd_pkt;
4821 unsigned long lock_flags = 0;
4822
4823 ENTER;
4824 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4825 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4826 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4827 return;
4828 }
4829
fb3ed3cb 4830 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 4831 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4832 ipr_cmd->sibling = reset_cmd;
4833 reset_cmd->sibling = ipr_cmd;
4834 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4835 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4836 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4837 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4838 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4839
4840 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4841 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4842 LEAVE;
4843}
4844
4845/**
4846 * ipr_cancel_op - Cancel specified op
4847 * @scsi_cmd: scsi command struct
4848 *
4849 * This function cancels specified op.
4850 *
4851 * Return value:
4852 * SUCCESS / FAILED
4853 **/
4854static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4855{
4856 struct ipr_cmnd *ipr_cmd;
4857 struct ipr_ioa_cfg *ioa_cfg;
4858 struct ipr_resource_entry *res;
4859 struct ipr_cmd_pkt *cmd_pkt;
4860 u32 ioasc;
4861 int op_found = 0;
4862
4863 ENTER;
4864 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4865 res = scsi_cmd->device->hostdata;
4866
8fa728a2
JG		 4867 /* If we are currently going through reset/reload, return failed.
4868 * This will force the mid-layer to call ipr_eh_host_reset,
4869 * which will then go to sleep and wait for the reset to complete
4870 */
4871 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4872 return FAILED;
04d9768f 4873 if (!res || !ipr_is_gscsi(res))
1da177e4
LT		 4874 return FAILED;
4875
4876 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4877 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4878 ipr_cmd->done = ipr_scsi_eh_done;
4879 op_found = 1;
4880 break;
4881 }
4882 }
4883
4884 if (!op_found)
4885 return SUCCESS;
4886
4887 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 4888 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 4889 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4890 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4891 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4892 ipr_cmd->u.sdev = scsi_cmd->device;
4893
fb3ed3cb
BK		 4894 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4895 scsi_cmd->cmnd[0]);
1da177e4 4896 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 4897 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 4898
4899 /*
4900 * If the abort task timed out and we sent a bus reset, we will get
4901 * one the following responses to the abort
4902 */
4903 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4904 ioasc = 0;
4905 ipr_trace;
4906 }
4907
4908 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
ee0a90fa 4909 if (!ipr_is_naca_model(res))
4910 res->needs_sync_complete = 1;
1da177e4
LT		 4911
4912 LEAVE;
4913 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4914}
4915
4916/**
4917 * ipr_eh_abort - Abort a single op
4918 * @scsi_cmd: scsi command struct
4919 *
4920 * Return value:
4921 * SUCCESS / FAILED
4922 **/
4923static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4924{
8fa728a2
JG		 4925 unsigned long flags;
4926 int rc;
1da177e4
LT		 4927
4928 ENTER;
1da177e4 4929
8fa728a2
JG		 4930 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4931 rc = ipr_cancel_op(scsi_cmd);
4932 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 4933
4934 LEAVE;
8fa728a2 4935 return rc;
1da177e4
LT		 4936}
4937
4938/**
4939 * ipr_handle_other_interrupt - Handle "other" interrupts
4940 * @ioa_cfg: ioa config struct
634651fa 4941 * @int_reg: interrupt register
1da177e4
LT		 4942 *
4943 * Return value:
4944 * IRQ_NONE / IRQ_HANDLED
4945 **/
634651fa
WB		 4946static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4947 volatile u32 int_reg)
1da177e4
LT		 4948{
4949 irqreturn_t rc = IRQ_HANDLED;
4950
4951 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4952 /* Mask the interrupt */
4953 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4954
4955 /* Clear the interrupt */
4956 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4957 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4958
4959 list_del(&ioa_cfg->reset_cmd->queue);
4960 del_timer(&ioa_cfg->reset_cmd->timer);
4961 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4962 } else {
4963 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4964 ioa_cfg->ioa_unit_checked = 1;
4965 else
4966 dev_err(&ioa_cfg->pdev->dev,
4967 "Permanent IOA failure. 0x%08X\n", int_reg);
4968
4969 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4970 ioa_cfg->sdt_state = GET_DUMP;
4971
4972 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4973 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4974 }
4975
4976 return rc;
4977}
4978
3feeb89d
WB		 4979/**
4980 * ipr_isr_eh - Interrupt service routine error handler
4981 * @ioa_cfg: ioa config struct
4982 * @msg: message to log
4983 *
4984 * Return value:
4985 * none
4986 **/
4987static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4988{
4989 ioa_cfg->errors_logged++;
4990 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
4991
4992 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4993 ioa_cfg->sdt_state = GET_DUMP;
4994
4995 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4996}
4997
1da177e4
LT		 4998/**
4999 * ipr_isr - Interrupt service routine
5000 * @irq: irq number
5001 * @devp: pointer to ioa config struct
1da177e4
LT		 5002 *
5003 * Return value:
5004 * IRQ_NONE / IRQ_HANDLED
5005 **/
7d12e780 5006static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4
LT		 5007{
5008 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5009 unsigned long lock_flags = 0;
634651fa 5010 volatile u32 int_reg, int_mask_reg;
1da177e4
LT		 5011 u32 ioasc;
5012 u16 cmd_index;
3feeb89d 5013 int num_hrrq = 0;
1da177e4
LT		 5014 struct ipr_cmnd *ipr_cmd;
5015 irqreturn_t rc = IRQ_NONE;
5016
5017 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5018
5019 /* If interrupts are disabled, ignore the interrupt */
5020 if (!ioa_cfg->allow_interrupts) {
5021 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5022 return IRQ_NONE;
5023 }
5024
634651fa
WB		 5025 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5026 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
5027
5028 /* If an interrupt on the adapter did not occur, ignore it.
5029 * Or in the case of SIS 64, check for a stage change interrupt.
5030 */
5031 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
5032 if (ioa_cfg->sis64) {
5033 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5034 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5035 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5036
5037 /* clear stage change */
5038 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5039 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5040 list_del(&ioa_cfg->reset_cmd->queue);
5041 del_timer(&ioa_cfg->reset_cmd->timer);
5042 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5043 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5044 return IRQ_HANDLED;
5045 }
5046 }
5047
5048 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5049 return IRQ_NONE;
5050 }
5051
1da177e4
LT		 5052 while (1) {
5053 ipr_cmd = NULL;
5054
5055 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5056 ioa_cfg->toggle_bit) {
5057
5058 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5059 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5060
5061 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
3feeb89d 5062 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
1da177e4
LT		 5063 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5064 return IRQ_HANDLED;
5065 }
5066
5067 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5068
96d21f00 5069 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5070
5071 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5072
5073 list_del(&ipr_cmd->queue);
5074 del_timer(&ipr_cmd->timer);
5075 ipr_cmd->done(ipr_cmd);
5076
5077 rc = IRQ_HANDLED;
5078
5079 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5080 ioa_cfg->hrrq_curr++;
5081 } else {
5082 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5083 ioa_cfg->toggle_bit ^= 1u;
5084 }
5085 }
5086
5087 if (ipr_cmd != NULL) {
5088 /* Clear the PCI interrupt */
3feeb89d 5089 do {
214777ba 5090 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
634651fa 5091 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
3feeb89d
WB		 5092 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5093 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5094
5095 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
5096 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5097 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5098 return IRQ_HANDLED;
5099 }
5100
1da177e4
LT		 5101 } else
5102 break;
5103 }
5104
5105 if (unlikely(rc == IRQ_NONE))
634651fa 5106 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4
LT		 5107
5108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5109 return rc;
5110}
5111
a32c055f
WB		 5112/**
5113 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5114 * @ioa_cfg: ioa config struct
5115 * @ipr_cmd: ipr command struct
5116 *
5117 * Return value:
5118 * 0 on success / -1 on failure
5119 **/
5120static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5121 struct ipr_cmnd *ipr_cmd)
5122{
5123 int i, nseg;
5124 struct scatterlist *sg;
5125 u32 length;
5126 u32 ioadl_flags = 0;
5127 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5128 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5129 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5130
5131 length = scsi_bufflen(scsi_cmd);
5132 if (!length)
5133 return 0;
5134
5135 nseg = scsi_dma_map(scsi_cmd);
5136 if (nseg < 0) {
5137 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5138 return -1;
5139 }
5140
5141 ipr_cmd->dma_use_sg = nseg;
5142
438b0331 5143 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5144 ioarcb->ioadl_len =
5145 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5146
a32c055f
WB		 5147 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5148 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5149 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5150 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5151 ioadl_flags = IPR_IOADL_FLAGS_READ;
5152
5153 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5154 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5155 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5156 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5157 }
5158
5159 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5160 return 0;
5161}
5162
1da177e4
LT		 5163/**
5164 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5165 * @ioa_cfg: ioa config struct
5166 * @ipr_cmd: ipr command struct
5167 *
5168 * Return value:
5169 * 0 on success / -1 on failure
5170 **/
5171static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5172 struct ipr_cmnd *ipr_cmd)
5173{
63015bc9
FT		 5174 int i, nseg;
5175 struct scatterlist *sg;
1da177e4
LT		 5176 u32 length;
5177 u32 ioadl_flags = 0;
5178 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5179 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5180 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5181
63015bc9
FT		 5182 length = scsi_bufflen(scsi_cmd);
5183 if (!length)
1da177e4
LT		 5184 return 0;
5185
63015bc9
FT		 5186 nseg = scsi_dma_map(scsi_cmd);
5187 if (nseg < 0) {
5188 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5189 return -1;
5190 }
51b1c7e1 5191
63015bc9
FT		 5192 ipr_cmd->dma_use_sg = nseg;
5193
5194 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5195 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5196 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5197 ioarcb->data_transfer_length = cpu_to_be32(length);
5198 ioarcb->ioadl_len =
63015bc9
FT		 5199 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5200 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5201 ioadl_flags = IPR_IOADL_FLAGS_READ;
5202 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5203 ioarcb->read_ioadl_len =
5204 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5205 }
1da177e4 5206
a32c055f
WB		 5207 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5208 ioadl = ioarcb->u.add_data.u.ioadl;
5209 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5210 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5211 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5212 }
1da177e4 5213
63015bc9
FT		 5214 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5215 ioadl[i].flags_and_data_len =
5216 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5217 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5218 }
5219
63015bc9
FT		 5220 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5221 return 0;
1da177e4
LT		 5222}
5223
5224/**
5225 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5226 * @scsi_cmd: scsi command struct
5227 *
5228 * Return value:
5229 * task attributes
5230 **/
5231static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5232{
5233 u8 tag[2];
5234 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5235
5236 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5237 switch (tag[0]) {
5238 case MSG_SIMPLE_TAG:
5239 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5240 break;
5241 case MSG_HEAD_TAG:
5242 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5243 break;
5244 case MSG_ORDERED_TAG:
5245 rc = IPR_FLAGS_LO_ORDERED_TASK;
5246 break;
5247 };
5248 }
5249
5250 return rc;
5251}
5252
5253/**
5254 * ipr_erp_done - Process completion of ERP for a device
5255 * @ipr_cmd: ipr command struct
5256 *
5257 * This function copies the sense buffer into the scsi_cmd
5258 * struct and pushes the scsi_done function.
5259 *
5260 * Return value:
5261 * nothing
5262 **/
5263static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5264{
5265 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5266 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5267 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 5268 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5269
5270 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5271 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5272 scmd_printk(KERN_ERR, scsi_cmd,
5273 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5274 } else {
5275 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5276 SCSI_SENSE_BUFFERSIZE);
5277 }
5278
5279 if (res) {
ee0a90fa 5280 if (!ipr_is_naca_model(res))
5281 res->needs_sync_complete = 1;
1da177e4
LT		 5282 res->in_erp = 0;
5283 }
63015bc9 5284 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5285 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5286 scsi_cmd->scsi_done(scsi_cmd);
5287}
5288
5289/**
5290 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5291 * @ipr_cmd: ipr command struct
5292 *
5293 * Return value:
5294 * none
5295 **/
5296static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5297{
51b1c7e1 5298 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5299 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5300 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5301
5302 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5303 ioarcb->data_transfer_length = 0;
1da177e4 5304 ioarcb->read_data_transfer_length = 0;
a32c055f 5305 ioarcb->ioadl_len = 0;
1da177e4 5306 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5307 ioasa->hdr.ioasc = 0;
5308 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5309
5310 if (ipr_cmd->ioa_cfg->sis64)
5311 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5312 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5313 else {
5314 ioarcb->write_ioadl_addr =
5315 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5316 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5317 }
1da177e4
LT		 5318}
5319
5320/**
5321 * ipr_erp_request_sense - Send request sense to a device
5322 * @ipr_cmd: ipr command struct
5323 *
5324 * This function sends a request sense to a device as a result
5325 * of a check condition.
5326 *
5327 * Return value:
5328 * nothing
5329 **/
5330static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5331{
5332 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5333 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5334
5335 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5336 ipr_erp_done(ipr_cmd);
5337 return;
5338 }
5339
5340 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5341
5342 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5343 cmd_pkt->cdb[0] = REQUEST_SENSE;
5344 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5345 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5346 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5347 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5348
a32c055f
WB		 5349 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5350 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5351
5352 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5353 IPR_REQUEST_SENSE_TIMEOUT * 2);
5354}
5355
5356/**
5357 * ipr_erp_cancel_all - Send cancel all to a device
5358 * @ipr_cmd: ipr command struct
5359 *
5360 * This function sends a cancel all to a device to clear the
5361 * queue. If we are running TCQ on the device, QERR is set to 1,
5362 * which means all outstanding ops have been dropped on the floor.
5363 * Cancel all will return them to us.
5364 *
5365 * Return value:
5366 * nothing
5367 **/
5368static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5369{
5370 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5371 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5372 struct ipr_cmd_pkt *cmd_pkt;
5373
5374 res->in_erp = 1;
5375
5376 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5377
5378 if (!scsi_get_tag_type(scsi_cmd->device)) {
5379 ipr_erp_request_sense(ipr_cmd);
5380 return;
5381 }
5382
5383 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5384 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5385 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5386
5387 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5388 IPR_CANCEL_ALL_TIMEOUT);
5389}
5390
5391/**
5392 * ipr_dump_ioasa - Dump contents of IOASA
5393 * @ioa_cfg: ioa config struct
5394 * @ipr_cmd: ipr command struct
fe964d0a 5395 * @res: resource entry struct
1da177e4
LT		 5396 *
5397 * This function is invoked by the interrupt handler when ops
5398 * fail. It will log the IOASA if appropriate. Only called
5399 * for GPDD ops.
5400 *
5401 * Return value:
5402 * none
5403 **/
5404static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5405 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5406{
5407 int i;
5408 u16 data_len;
b0692dd4 5409 u32 ioasc, fd_ioasc;
96d21f00 5410 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5411 __be32 *ioasa_data = (__be32 *)ioasa;
5412 int error_index;
5413
96d21f00
WB		 5414 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5415 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5416
5417 if (0 == ioasc)
5418 return;
5419
5420 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5421 return;
5422
b0692dd4
BK		 5423 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5424 error_index = ipr_get_error(fd_ioasc);
5425 else
5426 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5427
5428 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5429 /* Don't log an error if the IOA already logged one */
96d21f00 5430 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5431 return;
5432
cc9bd5d4
BK		 5433 if (!ipr_is_gscsi(res))
5434 return;
5435
1da177e4
LT		 5436 if (ipr_error_table[error_index].log_ioasa == 0)
5437 return;
5438 }
5439
fe964d0a 5440 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5441
96d21f00
WB		 5442 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5443 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5444 data_len = sizeof(struct ipr_ioasa64);
5445 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5446 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5447
5448 ipr_err("IOASA Dump:\n");
5449
5450 for (i = 0; i < data_len / 4; i += 4) {
5451 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5452 be32_to_cpu(ioasa_data[i]),
5453 be32_to_cpu(ioasa_data[i+1]),
5454 be32_to_cpu(ioasa_data[i+2]),
5455 be32_to_cpu(ioasa_data[i+3]));
5456 }
5457}
5458
5459/**
5460 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5461 * @ioasa: IOASA
5462 * @sense_buf: sense data buffer
5463 *
5464 * Return value:
5465 * none
5466 **/
5467static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5468{
5469 u32 failing_lba;
5470 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5471 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5472 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5473 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5474
5475 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5476
5477 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5478 return;
5479
5480 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5481
5482 if (ipr_is_vset_device(res) &&
5483 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5484 ioasa->u.vset.failing_lba_hi != 0) {
5485 sense_buf[0] = 0x72;
5486 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5487 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5488 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5489
5490 sense_buf[7] = 12;
5491 sense_buf[8] = 0;
5492 sense_buf[9] = 0x0A;
5493 sense_buf[10] = 0x80;
5494
5495 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5496
5497 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5498 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5499 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5500 sense_buf[15] = failing_lba & 0x000000ff;
5501
5502 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5503
5504 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5505 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5506 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5507 sense_buf[19] = failing_lba & 0x000000ff;
5508 } else {
5509 sense_buf[0] = 0x70;
5510 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5511 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5512 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5513
5514 /* Illegal request */
5515 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5516 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5517 sense_buf[7] = 10; /* additional length */
5518
5519 /* IOARCB was in error */
5520 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5521 sense_buf[15] = 0xC0;
5522 else /* Parameter data was invalid */
5523 sense_buf[15] = 0x80;
5524
5525 sense_buf[16] =
5526 ((IPR_FIELD_POINTER_MASK &
96d21f00 5527 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5528 sense_buf[17] =
5529 (IPR_FIELD_POINTER_MASK &
96d21f00 5530 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5531 } else {
5532 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5533 if (ipr_is_vset_device(res))
5534 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5535 else
5536 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5537
5538 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5539 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5540 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5541 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5542 sense_buf[6] = failing_lba & 0x000000ff;
5543 }
5544
5545 sense_buf[7] = 6; /* additional length */
5546 }
5547 }
5548}
5549
ee0a90fa 5550/**
5551 * ipr_get_autosense - Copy autosense data to sense buffer
5552 * @ipr_cmd: ipr command struct
5553 *
5554 * This function copies the autosense buffer to the buffer
5555 * in the scsi_cmd, if there is autosense available.
5556 *
5557 * Return value:
5558 * 1 if autosense was available / 0 if not
5559 **/
5560static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5561{
96d21f00
WB		 5562 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5563 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 5564
96d21f00 5565 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa 5566 return 0;
5567
96d21f00
WB		 5568 if (ipr_cmd->ioa_cfg->sis64)
5569 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5570 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5571 SCSI_SENSE_BUFFERSIZE));
5572 else
5573 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5574 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5575 SCSI_SENSE_BUFFERSIZE));
ee0a90fa 5576 return 1;
5577}
5578
1da177e4
LT		 5579/**
5580 * ipr_erp_start - Process an error response for a SCSI op
5581 * @ioa_cfg: ioa config struct
5582 * @ipr_cmd: ipr command struct
5583 *
5584 * This function determines whether or not to initiate ERP
5585 * on the affected device.
5586 *
5587 * Return value:
5588 * nothing
5589 **/
5590static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5591 struct ipr_cmnd *ipr_cmd)
5592{
5593 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5594 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5595 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 5596 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5597
5598 if (!res) {
5599 ipr_scsi_eh_done(ipr_cmd);
5600 return;
5601 }
5602
8a048994 5603 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 5604 ipr_gen_sense(ipr_cmd);
5605
cc9bd5d4
BK		 5606 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5607
8a048994 5608 switch (masked_ioasc) {
1da177e4 5609 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa 5610 if (ipr_is_naca_model(res))
5611 scsi_cmd->result |= (DID_ABORT << 16);
5612 else
5613 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 5614 break;
5615 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 5616 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 5617 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5618 break;
5619 case IPR_IOASC_HW_SEL_TIMEOUT:
5620 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa 5621 if (!ipr_is_naca_model(res))
5622 res->needs_sync_complete = 1;
1da177e4
LT		 5623 break;
5624 case IPR_IOASC_SYNC_REQUIRED:
5625 if (!res->in_erp)
5626 res->needs_sync_complete = 1;
5627 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5628 break;
5629 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 5630 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 5631 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5632 break;
5633 case IPR_IOASC_BUS_WAS_RESET:
5634 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5635 /*
5636 * Report the bus reset and ask for a retry. The device
5637 * will give CC/UA the next command.
5638 */
5639 if (!res->resetting_device)
5640 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5641 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 5642 if (!ipr_is_naca_model(res))
5643 res->needs_sync_complete = 1;
1da177e4
LT		 5644 break;
5645 case IPR_IOASC_HW_DEV_BUS_STATUS:
5646 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5647 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa 5648 if (!ipr_get_autosense(ipr_cmd)) {
5649 if (!ipr_is_naca_model(res)) {
5650 ipr_erp_cancel_all(ipr_cmd);
5651 return;
5652 }
5653 }
1da177e4 5654 }
ee0a90fa 5655 if (!ipr_is_naca_model(res))
5656 res->needs_sync_complete = 1;
1da177e4
LT		 5657 break;
5658 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5659 break;
5660 default:
5b7304fb
BK		 5661 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5662 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 5663 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 5664 res->needs_sync_complete = 1;
5665 break;
5666 }
5667
63015bc9 5668 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5669 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5670 scsi_cmd->scsi_done(scsi_cmd);
5671}
5672
5673/**
5674 * ipr_scsi_done - mid-layer done function
5675 * @ipr_cmd: ipr command struct
5676 *
5677 * This function is invoked by the interrupt handler for
5678 * ops generated by the SCSI mid-layer
5679 *
5680 * Return value:
5681 * none
5682 **/
5683static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5684{
5685 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5686 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 5687 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4 5688
96d21f00 5689 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 5690
5691 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
63015bc9 5692 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5693 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5694 scsi_cmd->scsi_done(scsi_cmd);
5695 } else
5696 ipr_erp_start(ioa_cfg, ipr_cmd);
5697}
5698
1da177e4
LT		 5699/**
5700 * ipr_queuecommand - Queue a mid-layer request
5701 * @scsi_cmd: scsi command struct
5702 * @done: done function
5703 *
5704 * This function queues a request generated by the mid-layer.
5705 *
5706 * Return value:
5707 * 0 on success
5708 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5709 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5710 **/
f281233d 5711static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
1da177e4
LT		 5712 void (*done) (struct scsi_cmnd *))
5713{
5714 struct ipr_ioa_cfg *ioa_cfg;
5715 struct ipr_resource_entry *res;
5716 struct ipr_ioarcb *ioarcb;
5717 struct ipr_cmnd *ipr_cmd;
5718 int rc = 0;
5719
5720 scsi_cmd->scsi_done = done;
5721 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5722 res = scsi_cmd->device->hostdata;
5723 scsi_cmd->result = (DID_OK << 16);
5724
5725 /*
5726 * We are currently blocking all devices due to a host reset
5727 * We have told the host to stop giving us new requests, but
5728 * ERP ops don't count. FIXME
5729 */
5730 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5731 return SCSI_MLQUEUE_HOST_BUSY;
5732
5733 /*
5734 * FIXME - Create scsi_set_host_offline interface
5735 * and the ioa_is_dead check can be removed
5736 */
5737 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5738 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5739 scsi_cmd->result = (DID_NO_CONNECT << 16);
5740 scsi_cmd->scsi_done(scsi_cmd);
5741 return 0;
5742 }
5743
35a39691
BK		 5744 if (ipr_is_gata(res) && res->sata_port)
5745 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
5746
1da177e4
LT		 5747 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5748 ioarcb = &ipr_cmd->ioarcb;
5749 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5750
5751 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5752 ipr_cmd->scsi_cmd = scsi_cmd;
3e7ebdfa 5753 ioarcb->res_handle = res->res_handle;
1da177e4 5754 ipr_cmd->done = ipr_scsi_done;
3e7ebdfa 5755 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
1da177e4
LT		 5756
5757 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5758 if (scsi_cmd->underflow == 0)
5759 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5760
5761 if (res->needs_sync_complete) {
5762 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5763 res->needs_sync_complete = 0;
5764 }
5765
5766 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5767 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5768 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5769 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5770 }
5771
5772 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5773 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5774 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5775
a32c055f
WB		 5776 if (likely(rc == 0)) {
5777 if (ioa_cfg->sis64)
5778 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5779 else
5780 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5781 }
1da177e4
LT		 5782
5783 if (likely(rc == 0)) {
5784 mb();
a32c055f 5785 ipr_send_command(ipr_cmd);
1da177e4
LT		 5786 } else {
5787 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5788 return SCSI_MLQUEUE_HOST_BUSY;
5789 }
5790
5791 return 0;
5792}
5793
f281233d
JG		 5794static DEF_SCSI_QCMD(ipr_queuecommand)
5795
35a39691
BK		 5796/**
5797 * ipr_ioctl - IOCTL handler
5798 * @sdev: scsi device struct
5799 * @cmd: IOCTL cmd
5800 * @arg: IOCTL arg
5801 *
5802 * Return value:
5803 * 0 on success / other on failure
5804 **/
bd705f2d 5805static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 5806{
5807 struct ipr_resource_entry *res;
5808
5809 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 5810 if (res && ipr_is_gata(res)) {
5811 if (cmd == HDIO_GET_IDENTITY)
5812 return -ENOTTY;
94be9a58 5813 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 5814 }
35a39691
BK		 5815
5816 return -EINVAL;
5817}
5818
1da177e4
LT		 5819/**
5820 * ipr_info - Get information about the card/driver
5821 * @scsi_host: scsi host struct
5822 *
5823 * Return value:
5824 * pointer to buffer with description string
5825 **/
5826static const char * ipr_ioa_info(struct Scsi_Host *host)
5827{
5828 static char buffer[512];
5829 struct ipr_ioa_cfg *ioa_cfg;
5830 unsigned long lock_flags = 0;
5831
5832 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5833
5834 spin_lock_irqsave(host->host_lock, lock_flags);
5835 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5836 spin_unlock_irqrestore(host->host_lock, lock_flags);
5837
5838 return buffer;
5839}
5840
5841static struct scsi_host_template driver_template = {
5842 .module = THIS_MODULE,
5843 .name = "IPR",
5844 .info = ipr_ioa_info,
35a39691 5845 .ioctl = ipr_ioctl,
1da177e4
LT		 5846 .queuecommand = ipr_queuecommand,
5847 .eh_abort_handler = ipr_eh_abort,
5848 .eh_device_reset_handler = ipr_eh_dev_reset,
5849 .eh_host_reset_handler = ipr_eh_host_reset,
5850 .slave_alloc = ipr_slave_alloc,
5851 .slave_configure = ipr_slave_configure,
5852 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 5853 .target_alloc = ipr_target_alloc,
5854 .target_destroy = ipr_target_destroy,
1da177e4
LT		 5855 .change_queue_depth = ipr_change_queue_depth,
5856 .change_queue_type = ipr_change_queue_type,
5857 .bios_param = ipr_biosparam,
5858 .can_queue = IPR_MAX_COMMANDS,
5859 .this_id = -1,
5860 .sg_tablesize = IPR_MAX_SGLIST,
5861 .max_sectors = IPR_IOA_MAX_SECTORS,
5862 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5863 .use_clustering = ENABLE_CLUSTERING,
5864 .shost_attrs = ipr_ioa_attrs,
5865 .sdev_attrs = ipr_dev_attrs,
5866 .proc_name = IPR_NAME
5867};
5868
35a39691
BK		 5869/**
5870 * ipr_ata_phy_reset - libata phy_reset handler
5871 * @ap: ata port to reset
5872 *
5873 **/
5874static void ipr_ata_phy_reset(struct ata_port *ap)
5875{
5876 unsigned long flags;
5877 struct ipr_sata_port *sata_port = ap->private_data;
5878 struct ipr_resource_entry *res = sata_port->res;
5879 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5880 int rc;
5881
5882 ENTER;
5883 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5884 while(ioa_cfg->in_reset_reload) {
5885 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5886 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5887 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5888 }
5889
5890 if (!ioa_cfg->allow_cmds)
5891 goto out_unlock;
5892
5893 rc = ipr_device_reset(ioa_cfg, res);
5894
5895 if (rc) {
3e4ec344 5896 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5897 goto out_unlock;
5898 }
5899
3e7ebdfa
WB		 5900 ap->link.device[0].class = res->ata_class;
5901 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 5902 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5903
5904out_unlock:
5905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5906 LEAVE;
5907}
5908
5909/**
5910 * ipr_ata_post_internal - Cleanup after an internal command
5911 * @qc: ATA queued command
5912 *
5913 * Return value:
5914 * none
5915 **/
5916static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5917{
5918 struct ipr_sata_port *sata_port = qc->ap->private_data;
5919 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5920 struct ipr_cmnd *ipr_cmd;
5921 unsigned long flags;
5922
5923 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
73d98ff0
BK		 5924 while(ioa_cfg->in_reset_reload) {
5925 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5926 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5927 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5928 }
5929
35a39691
BK		 5930 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5931 if (ipr_cmd->qc == qc) {
5932 ipr_device_reset(ioa_cfg, sata_port->res);
5933 break;
5934 }
5935 }
5936 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5937}
5938
35a39691
BK		 5939/**
5940 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5941 * @regs: destination
5942 * @tf: source ATA taskfile
5943 *
5944 * Return value:
5945 * none
5946 **/
5947static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5948 struct ata_taskfile *tf)
5949{
5950 regs->feature = tf->feature;
5951 regs->nsect = tf->nsect;
5952 regs->lbal = tf->lbal;
5953 regs->lbam = tf->lbam;
5954 regs->lbah = tf->lbah;
5955 regs->device = tf->device;
5956 regs->command = tf->command;
5957 regs->hob_feature = tf->hob_feature;
5958 regs->hob_nsect = tf->hob_nsect;
5959 regs->hob_lbal = tf->hob_lbal;
5960 regs->hob_lbam = tf->hob_lbam;
5961 regs->hob_lbah = tf->hob_lbah;
5962 regs->ctl = tf->ctl;
5963}
5964
5965/**
5966 * ipr_sata_done - done function for SATA commands
5967 * @ipr_cmd: ipr command struct
5968 *
5969 * This function is invoked by the interrupt handler for
5970 * ops generated by the SCSI mid-layer to SATA devices
5971 *
5972 * Return value:
5973 * none
5974 **/
5975static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5976{
5977 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5978 struct ata_queued_cmd *qc = ipr_cmd->qc;
5979 struct ipr_sata_port *sata_port = qc->ap->private_data;
5980 struct ipr_resource_entry *res = sata_port->res;
96d21f00 5981 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 5982
96d21f00
WB		 5983 if (ipr_cmd->ioa_cfg->sis64)
5984 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5985 sizeof(struct ipr_ioasa_gata));
5986 else
5987 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5988 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 5989 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5990
96d21f00 5991 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 5992 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 5993
5994 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 5995 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 5996 else
96d21f00 5997 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
35a39691
BK		 5998 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5999 ata_qc_complete(qc);
6000}
6001
a32c055f
WB		 6002/**
6003 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6004 * @ipr_cmd: ipr command struct
6005 * @qc: ATA queued command
6006 *
6007 **/
6008static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6009 struct ata_queued_cmd *qc)
6010{
6011 u32 ioadl_flags = 0;
6012 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6013 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6014 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6015 int len = qc->nbytes;
6016 struct scatterlist *sg;
6017 unsigned int si;
6018 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6019
6020 if (len == 0)
6021 return;
6022
6023 if (qc->dma_dir == DMA_TO_DEVICE) {
6024 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6025 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6026 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6027 ioadl_flags = IPR_IOADL_FLAGS_READ;
6028
6029 ioarcb->data_transfer_length = cpu_to_be32(len);
6030 ioarcb->ioadl_len =
6031 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6032 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6033 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6034
6035 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6036 ioadl64->flags = cpu_to_be32(ioadl_flags);
6037 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6038 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6039
6040 last_ioadl64 = ioadl64;
6041 ioadl64++;
6042 }
6043
6044 if (likely(last_ioadl64))
6045 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6046}
6047
35a39691
BK		 6048/**
6049 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6050 * @ipr_cmd: ipr command struct
6051 * @qc: ATA queued command
6052 *
6053 **/
6054static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6055 struct ata_queued_cmd *qc)
6056{
6057 u32 ioadl_flags = 0;
6058 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6059 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6060 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6061 int len = qc->nbytes;
35a39691 6062 struct scatterlist *sg;
ff2aeb1e 6063 unsigned int si;
35a39691
BK		 6064
6065 if (len == 0)
6066 return;
6067
6068 if (qc->dma_dir == DMA_TO_DEVICE) {
6069 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6070 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6071 ioarcb->data_transfer_length = cpu_to_be32(len);
6072 ioarcb->ioadl_len =
35a39691
BK		 6073 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6074 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6075 ioadl_flags = IPR_IOADL_FLAGS_READ;
6076 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6077 ioarcb->read_ioadl_len =
6078 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6079 }
6080
ff2aeb1e 6081 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6082 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6083 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6084
6085 last_ioadl = ioadl;
6086 ioadl++;
35a39691 6087 }
3be6cbd7
JG		 6088
6089 if (likely(last_ioadl))
6090 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6091}
6092
6093/**
6094 * ipr_qc_issue - Issue a SATA qc to a device
6095 * @qc: queued command
6096 *
6097 * Return value:
6098 * 0 if success
6099 **/
6100static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6101{
6102 struct ata_port *ap = qc->ap;
6103 struct ipr_sata_port *sata_port = ap->private_data;
6104 struct ipr_resource_entry *res = sata_port->res;
6105 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6106 struct ipr_cmnd *ipr_cmd;
6107 struct ipr_ioarcb *ioarcb;
6108 struct ipr_ioarcb_ata_regs *regs;
6109
6110 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
0feeed82 6111 return AC_ERR_SYSTEM;
35a39691
BK		 6112
6113 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6114 ioarcb = &ipr_cmd->ioarcb;
35a39691 6115
a32c055f
WB		 6116 if (ioa_cfg->sis64) {
6117 regs = &ipr_cmd->i.ata_ioadl.regs;
6118 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6119 } else
6120 regs = &ioarcb->u.add_data.u.regs;
6121
6122 memset(regs, 0, sizeof(*regs));
6123 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691
BK		 6124
6125 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6126 ipr_cmd->qc = qc;
6127 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6128 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6129 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6130 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6131 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6132 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6133
a32c055f
WB		 6134 if (ioa_cfg->sis64)
6135 ipr_build_ata_ioadl64(ipr_cmd, qc);
6136 else
6137 ipr_build_ata_ioadl(ipr_cmd, qc);
6138
35a39691
BK		 6139 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6140 ipr_copy_sata_tf(regs, &qc->tf);
6141 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6142 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6143
6144 switch (qc->tf.protocol) {
6145 case ATA_PROT_NODATA:
6146 case ATA_PROT_PIO:
6147 break;
6148
6149 case ATA_PROT_DMA:
6150 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6151 break;
6152
0dc36888
TH		 6153 case ATAPI_PROT_PIO:
6154 case ATAPI_PROT_NODATA:
35a39691
BK		 6155 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6156 break;
6157
0dc36888 6158 case ATAPI_PROT_DMA:
35a39691
BK		 6159 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6160 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6161 break;
6162
6163 default:
6164 WARN_ON(1);
0feeed82 6165 return AC_ERR_INVALID;
35a39691
BK		 6166 }
6167
6168 mb();
a32c055f
WB		 6169
6170 ipr_send_command(ipr_cmd);
6171
35a39691
BK		 6172 return 0;
6173}
6174
4c9bf4e7
TH		 6175/**
6176 * ipr_qc_fill_rtf - Read result TF
6177 * @qc: ATA queued command
6178 *
6179 * Return value:
6180 * true
6181 **/
6182static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6183{
6184 struct ipr_sata_port *sata_port = qc->ap->private_data;
6185 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6186 struct ata_taskfile *tf = &qc->result_tf;
6187
6188 tf->feature = g->error;
6189 tf->nsect = g->nsect;
6190 tf->lbal = g->lbal;
6191 tf->lbam = g->lbam;
6192 tf->lbah = g->lbah;
6193 tf->device = g->device;
6194 tf->command = g->status;
6195 tf->hob_nsect = g->hob_nsect;
6196 tf->hob_lbal = g->hob_lbal;
6197 tf->hob_lbam = g->hob_lbam;
6198 tf->hob_lbah = g->hob_lbah;
6199 tf->ctl = g->alt_status;
6200
6201 return true;
6202}
6203
35a39691 6204static struct ata_port_operations ipr_sata_ops = {
35a39691 6205 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6206 .hardreset = ipr_sata_reset,
35a39691 6207 .post_internal_cmd = ipr_ata_post_internal,
35a39691
BK		 6208 .qc_prep = ata_noop_qc_prep,
6209 .qc_issue = ipr_qc_issue,
4c9bf4e7 6210 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6211 .port_start = ata_sas_port_start,
6212 .port_stop = ata_sas_port_stop
6213};
6214
6215static struct ata_port_info sata_port_info = {
6216 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
6217 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
6218 .pio_mask = 0x10, /* pio4 */
6219 .mwdma_mask = 0x07,
6220 .udma_mask = 0x7f, /* udma0-6 */
6221 .port_ops = &ipr_sata_ops
6222};
6223
1da177e4
LT		 6224#ifdef CONFIG_PPC_PSERIES
6225static const u16 ipr_blocked_processors[] = {
6226 PV_NORTHSTAR,
6227 PV_PULSAR,
6228 PV_POWER4,
6229 PV_ICESTAR,
6230 PV_SSTAR,
6231 PV_POWER4p,
6232 PV_630,
6233 PV_630p
6234};
6235
6236/**
6237 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6238 * @ioa_cfg: ioa cfg struct
6239 *
6240 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6241 * certain pSeries hardware. This function determines if the given
6242 * adapter is in one of these confgurations or not.
6243 *
6244 * Return value:
6245 * 1 if adapter is not supported / 0 if adapter is supported
6246 **/
6247static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6248{
1da177e4
LT		 6249 int i;
6250
44c10138
AK		 6251 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6252 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6253 if (__is_processor(ipr_blocked_processors[i]))
6254 return 1;
1da177e4
LT		 6255 }
6256 }
6257 return 0;
6258}
6259#else
6260#define ipr_invalid_adapter(ioa_cfg) 0
6261#endif
6262
6263/**
6264 * ipr_ioa_bringdown_done - IOA bring down completion.
6265 * @ipr_cmd: ipr command struct
6266 *
6267 * This function processes the completion of an adapter bring down.
6268 * It wakes any reset sleepers.
6269 *
6270 * Return value:
6271 * IPR_RC_JOB_RETURN
6272 **/
6273static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6274{
6275 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6276
6277 ENTER;
6278 ioa_cfg->in_reset_reload = 0;
6279 ioa_cfg->reset_retries = 0;
6280 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6281 wake_up_all(&ioa_cfg->reset_wait_q);
6282
6283 spin_unlock_irq(ioa_cfg->host->host_lock);
6284 scsi_unblock_requests(ioa_cfg->host);
6285 spin_lock_irq(ioa_cfg->host->host_lock);
6286 LEAVE;
6287
6288 return IPR_RC_JOB_RETURN;
6289}
6290
6291/**
6292 * ipr_ioa_reset_done - IOA reset completion.
6293 * @ipr_cmd: ipr command struct
6294 *
6295 * This function processes the completion of an adapter reset.
6296 * It schedules any necessary mid-layer add/removes and
6297 * wakes any reset sleepers.
6298 *
6299 * Return value:
6300 * IPR_RC_JOB_RETURN
6301 **/
6302static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6303{
6304 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6305 struct ipr_resource_entry *res;
6306 struct ipr_hostrcb *hostrcb, *temp;
6307 int i = 0;
6308
6309 ENTER;
6310 ioa_cfg->in_reset_reload = 0;
6311 ioa_cfg->allow_cmds = 1;
6312 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6313 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6314
6315 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6316 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6317 ipr_trace;
6318 break;
6319 }
6320 }
6321 schedule_work(&ioa_cfg->work_q);
6322
6323 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6324 list_del(&hostrcb->queue);
6325 if (i++ < IPR_NUM_LOG_HCAMS)
6326 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6327 else
6328 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6329 }
6330
6bb04170 6331 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6332 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6333
6334 ioa_cfg->reset_retries = 0;
6335 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6336 wake_up_all(&ioa_cfg->reset_wait_q);
6337
30237853 6338 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6339 scsi_unblock_requests(ioa_cfg->host);
30237853 6340 spin_lock(ioa_cfg->host->host_lock);
1da177e4
LT		 6341
6342 if (!ioa_cfg->allow_cmds)
6343 scsi_block_requests(ioa_cfg->host);
6344
6345 LEAVE;
6346 return IPR_RC_JOB_RETURN;
6347}
6348
6349/**
6350 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6351 * @supported_dev: supported device struct
6352 * @vpids: vendor product id struct
6353 *
6354 * Return value:
6355 * none
6356 **/
6357static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6358 struct ipr_std_inq_vpids *vpids)
6359{
6360 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6361 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6362 supported_dev->num_records = 1;
6363 supported_dev->data_length =
6364 cpu_to_be16(sizeof(struct ipr_supported_device));
6365 supported_dev->reserved = 0;
6366}
6367
6368/**
6369 * ipr_set_supported_devs - Send Set Supported Devices for a device
6370 * @ipr_cmd: ipr command struct
6371 *
a32c055f 6372 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6373 *
6374 * Return value:
6375 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6376 **/
6377static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6378{
6379 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6380 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6381 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6382 struct ipr_resource_entry *res = ipr_cmd->u.res;
6383
6384 ipr_cmd->job_step = ipr_ioa_reset_done;
6385
6386 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6387 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6388 continue;
6389
6390 ipr_cmd->u.res = res;
3e7ebdfa 6391 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6392
6393 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6394 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6395 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6396
6397 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6398 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6399 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6400 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6401
a32c055f
WB		 6402 ipr_init_ioadl(ipr_cmd,
6403 ioa_cfg->vpd_cbs_dma +
6404 offsetof(struct ipr_misc_cbs, supp_dev),
6405 sizeof(struct ipr_supported_device),
6406 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6407
6408 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6409 IPR_SET_SUP_DEVICE_TIMEOUT);
6410
3e7ebdfa
WB		 6411 if (!ioa_cfg->sis64)
6412 ipr_cmd->job_step = ipr_set_supported_devs;
1da177e4
LT		 6413 return IPR_RC_JOB_RETURN;
6414 }
6415
6416 return IPR_RC_JOB_CONTINUE;
6417}
6418
6419/**
6420 * ipr_get_mode_page - Locate specified mode page
6421 * @mode_pages: mode page buffer
6422 * @page_code: page code to find
6423 * @len: minimum required length for mode page
6424 *
6425 * Return value:
6426 * pointer to mode page / NULL on failure
6427 **/
6428static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6429 u32 page_code, u32 len)
6430{
6431 struct ipr_mode_page_hdr *mode_hdr;
6432 u32 page_length;
6433 u32 length;
6434
6435 if (!mode_pages || (mode_pages->hdr.length == 0))
6436 return NULL;
6437
6438 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6439 mode_hdr = (struct ipr_mode_page_hdr *)
6440 (mode_pages->data + mode_pages->hdr.block_desc_len);
6441
6442 while (length) {
6443 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6444 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6445 return mode_hdr;
6446 break;
6447 } else {
6448 page_length = (sizeof(struct ipr_mode_page_hdr) +
6449 mode_hdr->page_length);
6450 length -= page_length;
6451 mode_hdr = (struct ipr_mode_page_hdr *)
6452 ((unsigned long)mode_hdr + page_length);
6453 }
6454 }
6455 return NULL;
6456}
6457
6458/**
6459 * ipr_check_term_power - Check for term power errors
6460 * @ioa_cfg: ioa config struct
6461 * @mode_pages: IOAFP mode pages buffer
6462 *
6463 * Check the IOAFP's mode page 28 for term power errors
6464 *
6465 * Return value:
6466 * nothing
6467 **/
6468static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6469 struct ipr_mode_pages *mode_pages)
6470{
6471 int i;
6472 int entry_length;
6473 struct ipr_dev_bus_entry *bus;
6474 struct ipr_mode_page28 *mode_page;
6475
6476 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6477 sizeof(struct ipr_mode_page28));
6478
6479 entry_length = mode_page->entry_length;
6480
6481 bus = mode_page->bus;
6482
6483 for (i = 0; i < mode_page->num_entries; i++) {
6484 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6485 dev_err(&ioa_cfg->pdev->dev,
6486 "Term power is absent on scsi bus %d\n",
6487 bus->res_addr.bus);
6488 }
6489
6490 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6491 }
6492}
6493
6494/**
6495 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6496 * @ioa_cfg: ioa config struct
6497 *
6498 * Looks through the config table checking for SES devices. If
6499 * the SES device is in the SES table indicating a maximum SCSI
6500 * bus speed, the speed is limited for the bus.
6501 *
6502 * Return value:
6503 * none
6504 **/
6505static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6506{
6507 u32 max_xfer_rate;
6508 int i;
6509
6510 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6511 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6512 ioa_cfg->bus_attr[i].bus_width);
6513
6514 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6515 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6516 }
6517}
6518
6519/**
6520 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6521 * @ioa_cfg: ioa config struct
6522 * @mode_pages: mode page 28 buffer
6523 *
6524 * Updates mode page 28 based on driver configuration
6525 *
6526 * Return value:
6527 * none
6528 **/
6529static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6530 struct ipr_mode_pages *mode_pages)
6531{
6532 int i, entry_length;
6533 struct ipr_dev_bus_entry *bus;
6534 struct ipr_bus_attributes *bus_attr;
6535 struct ipr_mode_page28 *mode_page;
6536
6537 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6538 sizeof(struct ipr_mode_page28));
6539
6540 entry_length = mode_page->entry_length;
6541
6542 /* Loop for each device bus entry */
6543 for (i = 0, bus = mode_page->bus;
6544 i < mode_page->num_entries;
6545 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6546 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6547 dev_err(&ioa_cfg->pdev->dev,
6548 "Invalid resource address reported: 0x%08X\n",
6549 IPR_GET_PHYS_LOC(bus->res_addr));
6550 continue;
6551 }
6552
6553 bus_attr = &ioa_cfg->bus_attr[i];
6554 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6555 bus->bus_width = bus_attr->bus_width;
6556 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6557 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6558 if (bus_attr->qas_enabled)
6559 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6560 else
6561 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6562 }
6563}
6564
6565/**
6566 * ipr_build_mode_select - Build a mode select command
6567 * @ipr_cmd: ipr command struct
6568 * @res_handle: resource handle to send command to
6569 * @parm: Byte 2 of Mode Sense command
6570 * @dma_addr: DMA buffer address
6571 * @xfer_len: data transfer length
6572 *
6573 * Return value:
6574 * none
6575 **/
6576static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 6577 __be32 res_handle, u8 parm,
6578 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6579{
1da177e4
LT		 6580 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6581
6582 ioarcb->res_handle = res_handle;
6583 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6584 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6585 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6586 ioarcb->cmd_pkt.cdb[1] = parm;
6587 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6588
a32c055f 6589 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6590}
6591
6592/**
6593 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6594 * @ipr_cmd: ipr command struct
6595 *
6596 * This function sets up the SCSI bus attributes and sends
6597 * a Mode Select for Page 28 to activate them.
6598 *
6599 * Return value:
6600 * IPR_RC_JOB_RETURN
6601 **/
6602static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6603{
6604 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6605 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6606 int length;
6607
6608 ENTER;
4733804c
BK		 6609 ipr_scsi_bus_speed_limit(ioa_cfg);
6610 ipr_check_term_power(ioa_cfg, mode_pages);
6611 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6612 length = mode_pages->hdr.length + 1;
6613 mode_pages->hdr.length = 0;
1da177e4
LT		 6614
6615 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6616 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6617 length);
6618
f72919ec
WB		 6619 ipr_cmd->job_step = ipr_set_supported_devs;
6620 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6621 struct ipr_resource_entry, queue);
1da177e4
LT		 6622 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6623
6624 LEAVE;
6625 return IPR_RC_JOB_RETURN;
6626}
6627
6628/**
6629 * ipr_build_mode_sense - Builds a mode sense command
6630 * @ipr_cmd: ipr command struct
6631 * @res: resource entry struct
6632 * @parm: Byte 2 of mode sense command
6633 * @dma_addr: DMA address of mode sense buffer
6634 * @xfer_len: Size of DMA buffer
6635 *
6636 * Return value:
6637 * none
6638 **/
6639static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6640 __be32 res_handle,
a32c055f 6641 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6642{
1da177e4
LT		 6643 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6644
6645 ioarcb->res_handle = res_handle;
6646 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6647 ioarcb->cmd_pkt.cdb[2] = parm;
6648 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6649 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6650
a32c055f 6651 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6652}
6653
dfed823e 6654/**
6655 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6656 * @ipr_cmd: ipr command struct
6657 *
6658 * This function handles the failure of an IOA bringup command.
6659 *
6660 * Return value:
6661 * IPR_RC_JOB_RETURN
6662 **/
6663static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6664{
6665 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6666 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 6667
6668 dev_err(&ioa_cfg->pdev->dev,
6669 "0x%02X failed with IOASC: 0x%08X\n",
6670 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6671
6672 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6673 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6674 return IPR_RC_JOB_RETURN;
6675}
6676
6677/**
6678 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6679 * @ipr_cmd: ipr command struct
6680 *
6681 * This function handles the failure of a Mode Sense to the IOAFP.
6682 * Some adapters do not handle all mode pages.
6683 *
6684 * Return value:
6685 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6686 **/
6687static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6688{
f72919ec 6689 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6690 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 6691
6692 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
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);
dfed823e 6696 return IPR_RC_JOB_CONTINUE;
6697 }
6698
6699 return ipr_reset_cmd_failed(ipr_cmd);
6700}
6701
1da177e4
LT		 6702/**
6703 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6704 * @ipr_cmd: ipr command struct
6705 *
6706 * This function send a Page 28 mode sense to the IOA to
6707 * retrieve SCSI bus attributes.
6708 *
6709 * Return value:
6710 * IPR_RC_JOB_RETURN
6711 **/
6712static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6713{
6714 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6715
6716 ENTER;
6717 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6718 0x28, ioa_cfg->vpd_cbs_dma +
6719 offsetof(struct ipr_misc_cbs, mode_pages),
6720 sizeof(struct ipr_mode_pages));
6721
6722 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 6723 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 6724
6725 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6726
6727 LEAVE;
6728 return IPR_RC_JOB_RETURN;
6729}
6730
ac09c349
BK		 6731/**
6732 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6733 * @ipr_cmd: ipr command struct
6734 *
6735 * This function enables dual IOA RAID support if possible.
6736 *
6737 * Return value:
6738 * IPR_RC_JOB_RETURN
6739 **/
6740static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6741{
6742 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6743 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6744 struct ipr_mode_page24 *mode_page;
6745 int length;
6746
6747 ENTER;
6748 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6749 sizeof(struct ipr_mode_page24));
6750
6751 if (mode_page)
6752 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6753
6754 length = mode_pages->hdr.length + 1;
6755 mode_pages->hdr.length = 0;
6756
6757 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6758 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6759 length);
6760
6761 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6762 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6763
6764 LEAVE;
6765 return IPR_RC_JOB_RETURN;
6766}
6767
6768/**
6769 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6770 * @ipr_cmd: ipr command struct
6771 *
6772 * This function handles the failure of a Mode Sense to the IOAFP.
6773 * Some adapters do not handle all mode pages.
6774 *
6775 * Return value:
6776 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6777 **/
6778static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6779{
96d21f00 6780 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 6781
6782 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6783 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6784 return IPR_RC_JOB_CONTINUE;
6785 }
6786
6787 return ipr_reset_cmd_failed(ipr_cmd);
6788}
6789
6790/**
6791 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6792 * @ipr_cmd: ipr command struct
6793 *
6794 * This function send a mode sense to the IOA to retrieve
6795 * the IOA Advanced Function Control mode page.
6796 *
6797 * Return value:
6798 * IPR_RC_JOB_RETURN
6799 **/
6800static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6801{
6802 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6803
6804 ENTER;
6805 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6806 0x24, ioa_cfg->vpd_cbs_dma +
6807 offsetof(struct ipr_misc_cbs, mode_pages),
6808 sizeof(struct ipr_mode_pages));
6809
6810 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6811 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6812
6813 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6814
6815 LEAVE;
6816 return IPR_RC_JOB_RETURN;
6817}
6818
1da177e4
LT		 6819/**
6820 * ipr_init_res_table - Initialize the resource table
6821 * @ipr_cmd: ipr command struct
6822 *
6823 * This function looks through the existing resource table, comparing
6824 * it with the config table. This function will take care of old/new
6825 * devices and schedule adding/removing them from the mid-layer
6826 * as appropriate.
6827 *
6828 * Return value:
6829 * IPR_RC_JOB_CONTINUE
6830 **/
6831static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6832{
6833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6834 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 6835 struct ipr_config_table_entry_wrapper cfgtew;
6836 int entries, found, flag, i;
1da177e4
LT		 6837 LIST_HEAD(old_res);
6838
6839 ENTER;
3e7ebdfa
WB		 6840 if (ioa_cfg->sis64)
6841 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6842 else
6843 flag = ioa_cfg->u.cfg_table->hdr.flags;
6844
6845 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 6846 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6847
6848 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6849 list_move_tail(&res->queue, &old_res);
6850
3e7ebdfa 6851 if (ioa_cfg->sis64)
438b0331 6852 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 6853 else
6854 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6855
6856 for (i = 0; i < entries; i++) {
6857 if (ioa_cfg->sis64)
6858 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6859 else
6860 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 6861 found = 0;
6862
6863 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 6864 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 6865 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6866 found = 1;
6867 break;
6868 }
6869 }
6870
6871 if (!found) {
6872 if (list_empty(&ioa_cfg->free_res_q)) {
6873 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6874 break;
6875 }
6876
6877 found = 1;
6878 res = list_entry(ioa_cfg->free_res_q.next,
6879 struct ipr_resource_entry, queue);
6880 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 6881 ipr_init_res_entry(res, &cfgtew);
1da177e4 6882 res->add_to_ml = 1;
56115598
WB		 6883 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6884 res->sdev->allow_restart = 1;
1da177e4
LT		 6885
6886 if (found)
3e7ebdfa 6887 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 6888 }
6889
6890 list_for_each_entry_safe(res, temp, &old_res, queue) {
6891 if (res->sdev) {
6892 res->del_from_ml = 1;
3e7ebdfa 6893 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 6894 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 6895 }
6896 }
6897
3e7ebdfa
WB		 6898 list_for_each_entry_safe(res, temp, &old_res, queue) {
6899 ipr_clear_res_target(res);
6900 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6901 }
6902
ac09c349
BK		 6903 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6904 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6905 else
6906 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 6907
6908 LEAVE;
6909 return IPR_RC_JOB_CONTINUE;
6910}
6911
6912/**
6913 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6914 * @ipr_cmd: ipr command struct
6915 *
6916 * This function sends a Query IOA Configuration command
6917 * to the adapter to retrieve the IOA configuration table.
6918 *
6919 * Return value:
6920 * IPR_RC_JOB_RETURN
6921 **/
6922static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6923{
6924 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6925 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 6926 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 6927 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 6928
6929 ENTER;
ac09c349
BK		 6930 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6931 ioa_cfg->dual_raid = 1;
1da177e4
LT		 6932 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6933 ucode_vpd->major_release, ucode_vpd->card_type,
6934 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6935 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6936 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6937
6938 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 6939 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 6940 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6941 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 6942
3e7ebdfa 6943 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 6944 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6945
6946 ipr_cmd->job_step = ipr_init_res_table;
6947
6948 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6949
6950 LEAVE;
6951 return IPR_RC_JOB_RETURN;
6952}
6953
6954/**
6955 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6956 * @ipr_cmd: ipr command struct
6957 *
6958 * This utility function sends an inquiry to the adapter.
6959 *
6960 * Return value:
6961 * none
6962 **/
6963static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 6964 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 6965{
6966 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6967
6968 ENTER;
6969 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6970 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6971
6972 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6973 ioarcb->cmd_pkt.cdb[1] = flags;
6974 ioarcb->cmd_pkt.cdb[2] = page;
6975 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6976
a32c055f 6977 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6978
6979 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6980 LEAVE;
6981}
6982
62275040 6983/**
6984 * ipr_inquiry_page_supported - Is the given inquiry page supported
6985 * @page0: inquiry page 0 buffer
6986 * @page: page code.
6987 *
6988 * This function determines if the specified inquiry page is supported.
6989 *
6990 * Return value:
6991 * 1 if page is supported / 0 if not
6992 **/
6993static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6994{
6995 int i;
6996
6997 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6998 if (page0->page[i] == page)
6999 return 1;
7000
7001 return 0;
7002}
7003
ac09c349
BK		 7004/**
7005 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7006 * @ipr_cmd: ipr command struct
7007 *
7008 * This function sends a Page 0xD0 inquiry to the adapter
7009 * to retrieve adapter capabilities.
7010 *
7011 * Return value:
7012 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7013 **/
7014static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7015{
7016 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7017 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7018 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7019
7020 ENTER;
7021 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7022 memset(cap, 0, sizeof(*cap));
7023
7024 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7025 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7026 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7027 sizeof(struct ipr_inquiry_cap));
7028 return IPR_RC_JOB_RETURN;
7029 }
7030
7031 LEAVE;
7032 return IPR_RC_JOB_CONTINUE;
7033}
7034
1da177e4
LT		 7035/**
7036 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7037 * @ipr_cmd: ipr command struct
7038 *
7039 * This function sends a Page 3 inquiry to the adapter
7040 * to retrieve software VPD information.
7041 *
7042 * Return value:
7043 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7044 **/
7045static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040 7046{
7047 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040 7048
7049 ENTER;
7050
ac09c349 7051 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040 7052
7053 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7054 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7055 sizeof(struct ipr_inquiry_page3));
7056
7057 LEAVE;
7058 return IPR_RC_JOB_RETURN;
7059}
7060
7061/**
7062 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7063 * @ipr_cmd: ipr command struct
7064 *
7065 * This function sends a Page 0 inquiry to the adapter
7066 * to retrieve supported inquiry pages.
7067 *
7068 * Return value:
7069 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7070 **/
7071static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7072{
7073 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7074 char type[5];
7075
7076 ENTER;
7077
7078 /* Grab the type out of the VPD and store it away */
7079 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7080 type[4] = '\0';
7081 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7082
62275040 7083 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7084
62275040 7085 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7086 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7087 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7088
7089 LEAVE;
7090 return IPR_RC_JOB_RETURN;
7091}
7092
7093/**
7094 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7095 * @ipr_cmd: ipr command struct
7096 *
7097 * This function sends a standard inquiry to the adapter.
7098 *
7099 * Return value:
7100 * IPR_RC_JOB_RETURN
7101 **/
7102static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7103{
7104 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7105
7106 ENTER;
62275040 7107 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7108
7109 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7110 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7111 sizeof(struct ipr_ioa_vpd));
7112
7113 LEAVE;
7114 return IPR_RC_JOB_RETURN;
7115}
7116
7117/**
214777ba 7118 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7119 * @ipr_cmd: ipr command struct
7120 *
7121 * This function send an Identify Host Request Response Queue
7122 * command to establish the HRRQ with the adapter.
7123 *
7124 * Return value:
7125 * IPR_RC_JOB_RETURN
7126 **/
214777ba 7127static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7128{
7129 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7130 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7131
7132 ENTER;
7133 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7134
7135 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7136 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7137
7138 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
214777ba
WB		 7139 if (ioa_cfg->sis64)
7140 ioarcb->cmd_pkt.cdb[1] = 0x1;
1da177e4 7141 ioarcb->cmd_pkt.cdb[2] =
214777ba 7142 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
1da177e4 7143 ioarcb->cmd_pkt.cdb[3] =
214777ba 7144 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
1da177e4 7145 ioarcb->cmd_pkt.cdb[4] =
214777ba 7146 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
1da177e4 7147 ioarcb->cmd_pkt.cdb[5] =
214777ba 7148 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
1da177e4
LT		 7149 ioarcb->cmd_pkt.cdb[7] =
7150 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7151 ioarcb->cmd_pkt.cdb[8] =
7152 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7153
214777ba
WB		 7154 if (ioa_cfg->sis64) {
7155 ioarcb->cmd_pkt.cdb[10] =
7156 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7157 ioarcb->cmd_pkt.cdb[11] =
7158 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7159 ioarcb->cmd_pkt.cdb[12] =
7160 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7161 ioarcb->cmd_pkt.cdb[13] =
7162 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7163 }
7164
1da177e4
LT		 7165 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7166
7167 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7168
7169 LEAVE;
7170 return IPR_RC_JOB_RETURN;
7171}
7172
7173/**
7174 * ipr_reset_timer_done - Adapter reset timer function
7175 * @ipr_cmd: ipr command struct
7176 *
7177 * Description: This function is used in adapter reset processing
7178 * for timing events. If the reset_cmd pointer in the IOA
7179 * config struct is not this adapter's we are doing nested
7180 * resets and fail_all_ops will take care of freeing the
7181 * command block.
7182 *
7183 * Return value:
7184 * none
7185 **/
7186static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7187{
7188 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7189 unsigned long lock_flags = 0;
7190
7191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7192
7193 if (ioa_cfg->reset_cmd == ipr_cmd) {
7194 list_del(&ipr_cmd->queue);
7195 ipr_cmd->done(ipr_cmd);
7196 }
7197
7198 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7199}
7200
7201/**
7202 * ipr_reset_start_timer - Start a timer for adapter reset job
7203 * @ipr_cmd: ipr command struct
7204 * @timeout: timeout value
7205 *
7206 * Description: This function is used in adapter reset processing
7207 * for timing events. If the reset_cmd pointer in the IOA
7208 * config struct is not this adapter's we are doing nested
7209 * resets and fail_all_ops will take care of freeing the
7210 * command block.
7211 *
7212 * Return value:
7213 * none
7214 **/
7215static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7216 unsigned long timeout)
7217{
7218 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7219 ipr_cmd->done = ipr_reset_ioa_job;
7220
7221 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7222 ipr_cmd->timer.expires = jiffies + timeout;
7223 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7224 add_timer(&ipr_cmd->timer);
7225}
7226
7227/**
7228 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7229 * @ioa_cfg: ioa cfg struct
7230 *
7231 * Return value:
7232 * nothing
7233 **/
7234static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7235{
7236 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7237
7238 /* Initialize Host RRQ pointers */
7239 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7240 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7241 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7242 ioa_cfg->toggle_bit = 1;
7243
7244 /* Zero out config table */
3e7ebdfa 7245 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7246}
7247
214777ba
WB		 7248/**
7249 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7250 * @ipr_cmd: ipr command struct
7251 *
7252 * Return value:
7253 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7254 **/
7255static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7256{
7257 unsigned long stage, stage_time;
7258 u32 feedback;
7259 volatile u32 int_reg;
7260 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7261 u64 maskval = 0;
7262
7263 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7264 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7265 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7266
7267 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7268
7269 /* sanity check the stage_time value */
438b0331
WB		 7270 if (stage_time == 0)
7271 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7272 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7273 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7274 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7275 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7276
7277 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7278 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7279 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7280 stage_time = ioa_cfg->transop_timeout;
7281 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7282 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7283 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7284 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7285 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7286 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7287 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7288 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7289 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7290 return IPR_RC_JOB_CONTINUE;
7291 }
214777ba
WB		 7292 }
7293
7294 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7295 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7296 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7297 ipr_cmd->done = ipr_reset_ioa_job;
7298 add_timer(&ipr_cmd->timer);
7299 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7300
7301 return IPR_RC_JOB_RETURN;
7302}
7303
1da177e4
LT		 7304/**
7305 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7306 * @ipr_cmd: ipr command struct
7307 *
7308 * This function reinitializes some control blocks and
7309 * enables destructive diagnostics on the adapter.
7310 *
7311 * Return value:
7312 * IPR_RC_JOB_RETURN
7313 **/
7314static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7315{
7316 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7317 volatile u32 int_reg;
7be96900 7318 volatile u64 maskval;
1da177e4
LT		 7319
7320 ENTER;
214777ba 7321 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7322 ipr_init_ioa_mem(ioa_cfg);
7323
7324 ioa_cfg->allow_interrupts = 1;
8701f185
WB		 7325 if (ioa_cfg->sis64) {
7326 /* Set the adapter to the correct endian mode. */
7327 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7328 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7329 }
7330
7be96900 7331 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7332
7333 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7334 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7335 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7336 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7337 return IPR_RC_JOB_CONTINUE;
7338 }
7339
7340 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7341 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7342
7be96900
WB		 7343 if (ioa_cfg->sis64) {
7344 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7345 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7346 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7347 } else
7348 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7349
1da177e4
LT		 7350 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7351
7352 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7353
214777ba
WB		 7354 if (ioa_cfg->sis64) {
7355 ipr_cmd->job_step = ipr_reset_next_stage;
7356 return IPR_RC_JOB_CONTINUE;
7357 }
7358
1da177e4 7359 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7360 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7361 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7362 ipr_cmd->done = ipr_reset_ioa_job;
7363 add_timer(&ipr_cmd->timer);
7364 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7365
7366 LEAVE;
7367 return IPR_RC_JOB_RETURN;
7368}
7369
7370/**
7371 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7372 * @ipr_cmd: ipr command struct
7373 *
7374 * This function is invoked when an adapter dump has run out
7375 * of processing time.
7376 *
7377 * Return value:
7378 * IPR_RC_JOB_CONTINUE
7379 **/
7380static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7381{
7382 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7383
7384 if (ioa_cfg->sdt_state == GET_DUMP)
7385 ioa_cfg->sdt_state = ABORT_DUMP;
7386
7387 ipr_cmd->job_step = ipr_reset_alert;
7388
7389 return IPR_RC_JOB_CONTINUE;
7390}
7391
7392/**
7393 * ipr_unit_check_no_data - Log a unit check/no data error log
7394 * @ioa_cfg: ioa config struct
7395 *
7396 * Logs an error indicating the adapter unit checked, but for some
7397 * reason, we were unable to fetch the unit check buffer.
7398 *
7399 * Return value:
7400 * nothing
7401 **/
7402static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7403{
7404 ioa_cfg->errors_logged++;
7405 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7406}
7407
7408/**
7409 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7410 * @ioa_cfg: ioa config struct
7411 *
7412 * Fetches the unit check buffer from the adapter by clocking the data
7413 * through the mailbox register.
7414 *
7415 * Return value:
7416 * nothing
7417 **/
7418static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7419{
7420 unsigned long mailbox;
7421 struct ipr_hostrcb *hostrcb;
7422 struct ipr_uc_sdt sdt;
7423 int rc, length;
65f56475 7424 u32 ioasc;
1da177e4
LT		 7425
7426 mailbox = readl(ioa_cfg->ioa_mailbox);
7427
dcbad00e 7428 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 7429 ipr_unit_check_no_data(ioa_cfg);
7430 return;
7431 }
7432
7433 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7434 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7435 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7436
dcbad00e
WB		 7437 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7438 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7439 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 7440 ipr_unit_check_no_data(ioa_cfg);
7441 return;
7442 }
7443
7444 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 7445 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7446 length = be32_to_cpu(sdt.entry[0].end_token);
7447 else
7448 length = (be32_to_cpu(sdt.entry[0].end_token) -
7449 be32_to_cpu(sdt.entry[0].start_token)) &
7450 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 7451
7452 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7453 struct ipr_hostrcb, queue);
7454 list_del(&hostrcb->queue);
7455 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7456
7457 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 7458 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 7459 (__be32 *)&hostrcb->hcam,
7460 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7461
65f56475 7462 if (!rc) {
1da177e4 7463 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 7464 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 7465 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7466 ioa_cfg->sdt_state == GET_DUMP)
7467 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7468 } else
1da177e4
LT		 7469 ipr_unit_check_no_data(ioa_cfg);
7470
7471 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7472}
7473
7474/**
7475 * ipr_reset_restore_cfg_space - Restore PCI config space.
7476 * @ipr_cmd: ipr command struct
7477 *
7478 * Description: This function restores the saved PCI config space of
7479 * the adapter, fails all outstanding ops back to the callers, and
7480 * fetches the dump/unit check if applicable to this reset.
7481 *
7482 * Return value:
7483 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7484 **/
7485static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7486{
7487 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8701f185 7488 volatile u32 int_reg;
1da177e4
LT		 7489 int rc;
7490
7491 ENTER;
99c965dd 7492 ioa_cfg->pdev->state_saved = true;
1da177e4
LT		 7493 rc = pci_restore_state(ioa_cfg->pdev);
7494
7495 if (rc != PCIBIOS_SUCCESSFUL) {
96d21f00 7496 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 7497 return IPR_RC_JOB_CONTINUE;
7498 }
7499
7500 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 7501 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 7502 return IPR_RC_JOB_CONTINUE;
7503 }
7504
7505 ipr_fail_all_ops(ioa_cfg);
7506
8701f185
WB		 7507 if (ioa_cfg->sis64) {
7508 /* Set the adapter to the correct endian mode. */
7509 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7510 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7511 }
7512
1da177e4
LT		 7513 if (ioa_cfg->ioa_unit_checked) {
7514 ioa_cfg->ioa_unit_checked = 0;
7515 ipr_get_unit_check_buffer(ioa_cfg);
7516 ipr_cmd->job_step = ipr_reset_alert;
7517 ipr_reset_start_timer(ipr_cmd, 0);
7518 return IPR_RC_JOB_RETURN;
7519 }
7520
7521 if (ioa_cfg->in_ioa_bringdown) {
7522 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7523 } else {
7524 ipr_cmd->job_step = ipr_reset_enable_ioa;
7525
7526 if (GET_DUMP == ioa_cfg->sdt_state) {
7527 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7528 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7529 schedule_work(&ioa_cfg->work_q);
7530 return IPR_RC_JOB_RETURN;
7531 }
7532 }
7533
438b0331 7534 LEAVE;
1da177e4
LT		 7535 return IPR_RC_JOB_CONTINUE;
7536}
7537
e619e1a7
BK		 7538/**
7539 * ipr_reset_bist_done - BIST has completed on the adapter.
7540 * @ipr_cmd: ipr command struct
7541 *
7542 * Description: Unblock config space and resume the reset process.
7543 *
7544 * Return value:
7545 * IPR_RC_JOB_CONTINUE
7546 **/
7547static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7548{
7549 ENTER;
7550 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7551 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7552 LEAVE;
7553 return IPR_RC_JOB_CONTINUE;
7554}
7555
1da177e4
LT		 7556/**
7557 * ipr_reset_start_bist - Run BIST on the adapter.
7558 * @ipr_cmd: ipr command struct
7559 *
7560 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7561 *
7562 * Return value:
7563 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7564 **/
7565static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7566{
7567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 7568 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 7569
7570 ENTER;
b30197d2 7571 pci_block_user_cfg_access(ioa_cfg->pdev);
1da177e4 7572
cb237ef7
WB		 7573 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7574 writel(IPR_UPROCI_SIS64_START_BIST,
7575 ioa_cfg->regs.set_uproc_interrupt_reg32);
7576 else
7577 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7578
7579 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 7580 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 7581 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7582 rc = IPR_RC_JOB_RETURN;
cb237ef7
WB		 7583 } else {
7584 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7585 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7586 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7587 }
7588
7589 LEAVE;
7590 return rc;
7591}
7592
463fc696
BK		 7593/**
7594 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7595 * @ipr_cmd: ipr command struct
7596 *
7597 * Description: This clears PCI reset to the adapter and delays two seconds.
7598 *
7599 * Return value:
7600 * IPR_RC_JOB_RETURN
7601 **/
7602static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7603{
7604 ENTER;
7605 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7606 ipr_cmd->job_step = ipr_reset_bist_done;
7607 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7608 LEAVE;
7609 return IPR_RC_JOB_RETURN;
7610}
7611
7612/**
7613 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7614 * @ipr_cmd: ipr command struct
7615 *
7616 * Description: This asserts PCI reset to the adapter.
7617 *
7618 * Return value:
7619 * IPR_RC_JOB_RETURN
7620 **/
7621static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7622{
7623 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7624 struct pci_dev *pdev = ioa_cfg->pdev;
7625
7626 ENTER;
7627 pci_block_user_cfg_access(pdev);
7628 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7629 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7630 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7631 LEAVE;
7632 return IPR_RC_JOB_RETURN;
7633}
7634
1da177e4
LT		 7635/**
7636 * ipr_reset_allowed - Query whether or not IOA can be reset
7637 * @ioa_cfg: ioa config struct
7638 *
7639 * Return value:
7640 * 0 if reset not allowed / non-zero if reset is allowed
7641 **/
7642static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7643{
7644 volatile u32 temp_reg;
7645
7646 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7647 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7648}
7649
7650/**
7651 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7652 * @ipr_cmd: ipr command struct
7653 *
7654 * Description: This function waits for adapter permission to run BIST,
7655 * then runs BIST. If the adapter does not give permission after a
7656 * reasonable time, we will reset the adapter anyway. The impact of
7657 * resetting the adapter without warning the adapter is the risk of
7658 * losing the persistent error log on the adapter. If the adapter is
7659 * reset while it is writing to the flash on the adapter, the flash
7660 * segment will have bad ECC and be zeroed.
7661 *
7662 * Return value:
7663 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7664 **/
7665static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7666{
7667 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7668 int rc = IPR_RC_JOB_RETURN;
7669
7670 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7671 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7672 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7673 } else {
463fc696 7674 ipr_cmd->job_step = ioa_cfg->reset;
1da177e4
LT		 7675 rc = IPR_RC_JOB_CONTINUE;
7676 }
7677
7678 return rc;
7679}
7680
7681/**
8701f185 7682 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 7683 * @ipr_cmd: ipr command struct
7684 *
7685 * Description: This function alerts the adapter that it will be reset.
7686 * If memory space is not currently enabled, proceed directly
7687 * to running BIST on the adapter. The timer must always be started
7688 * so we guarantee we do not run BIST from ipr_isr.
7689 *
7690 * Return value:
7691 * IPR_RC_JOB_RETURN
7692 **/
7693static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7694{
7695 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7696 u16 cmd_reg;
7697 int rc;
7698
7699 ENTER;
7700 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7701
7702 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7703 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 7704 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 7705 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7706 } else {
463fc696 7707 ipr_cmd->job_step = ioa_cfg->reset;
1da177e4
LT		 7708 }
7709
7710 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7711 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7712
7713 LEAVE;
7714 return IPR_RC_JOB_RETURN;
7715}
7716
7717/**
7718 * ipr_reset_ucode_download_done - Microcode download completion
7719 * @ipr_cmd: ipr command struct
7720 *
7721 * Description: This function unmaps the microcode download buffer.
7722 *
7723 * Return value:
7724 * IPR_RC_JOB_CONTINUE
7725 **/
7726static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7727{
7728 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7729 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7730
7731 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7732 sglist->num_sg, DMA_TO_DEVICE);
7733
7734 ipr_cmd->job_step = ipr_reset_alert;
7735 return IPR_RC_JOB_CONTINUE;
7736}
7737
7738/**
7739 * ipr_reset_ucode_download - Download microcode to the adapter
7740 * @ipr_cmd: ipr command struct
7741 *
7742 * Description: This function checks to see if it there is microcode
7743 * to download to the adapter. If there is, a download is performed.
7744 *
7745 * Return value:
7746 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7747 **/
7748static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7749{
7750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7751 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7752
7753 ENTER;
7754 ipr_cmd->job_step = ipr_reset_alert;
7755
7756 if (!sglist)
7757 return IPR_RC_JOB_CONTINUE;
7758
7759 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7760 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7761 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7762 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7763 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7764 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7765 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7766
a32c055f
WB		 7767 if (ioa_cfg->sis64)
7768 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7769 else
7770 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 7771 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7772
7773 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7774 IPR_WRITE_BUFFER_TIMEOUT);
7775
7776 LEAVE;
7777 return IPR_RC_JOB_RETURN;
7778}
7779
7780/**
7781 * ipr_reset_shutdown_ioa - Shutdown the adapter
7782 * @ipr_cmd: ipr command struct
7783 *
7784 * Description: This function issues an adapter shutdown of the
7785 * specified type to the specified adapter as part of the
7786 * adapter reset job.
7787 *
7788 * Return value:
7789 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7790 **/
7791static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7792{
7793 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7794 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7795 unsigned long timeout;
7796 int rc = IPR_RC_JOB_CONTINUE;
7797
7798 ENTER;
7799 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7800 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7801 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7802 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7803 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7804
ac09c349
BK		 7805 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7806 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7807 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7808 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 7809 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7810 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 7811 else
ac09c349 7812 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7813
7814 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7815
7816 rc = IPR_RC_JOB_RETURN;
7817 ipr_cmd->job_step = ipr_reset_ucode_download;
7818 } else
7819 ipr_cmd->job_step = ipr_reset_alert;
7820
7821 LEAVE;
7822 return rc;
7823}
7824
7825/**
7826 * ipr_reset_ioa_job - Adapter reset job
7827 * @ipr_cmd: ipr command struct
7828 *
7829 * Description: This function is the job router for the adapter reset job.
7830 *
7831 * Return value:
7832 * none
7833 **/
7834static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7835{
7836 u32 rc, ioasc;
1da177e4
LT		 7837 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7838
7839 do {
96d21f00 7840 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 7841
7842 if (ioa_cfg->reset_cmd != ipr_cmd) {
7843 /*
7844 * We are doing nested adapter resets and this is
7845 * not the current reset job.
7846 */
7847 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7848 return;
7849 }
7850
7851 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e 7852 rc = ipr_cmd->job_step_failed(ipr_cmd);
7853 if (rc == IPR_RC_JOB_RETURN)
7854 return;
1da177e4
LT		 7855 }
7856
7857 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 7858 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4
LT		 7859 rc = ipr_cmd->job_step(ipr_cmd);
7860 } while(rc == IPR_RC_JOB_CONTINUE);
7861}
7862
7863/**
7864 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7865 * @ioa_cfg: ioa config struct
7866 * @job_step: first job step of reset job
7867 * @shutdown_type: shutdown type
7868 *
7869 * Description: This function will initiate the reset of the given adapter
7870 * starting at the selected job step.
7871 * If the caller needs to wait on the completion of the reset,
7872 * the caller must sleep on the reset_wait_q.
7873 *
7874 * Return value:
7875 * none
7876 **/
7877static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7878 int (*job_step) (struct ipr_cmnd *),
7879 enum ipr_shutdown_type shutdown_type)
7880{
7881 struct ipr_cmnd *ipr_cmd;
7882
7883 ioa_cfg->in_reset_reload = 1;
7884 ioa_cfg->allow_cmds = 0;
7885 scsi_block_requests(ioa_cfg->host);
7886
7887 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7888 ioa_cfg->reset_cmd = ipr_cmd;
7889 ipr_cmd->job_step = job_step;
7890 ipr_cmd->u.shutdown_type = shutdown_type;
7891
7892 ipr_reset_ioa_job(ipr_cmd);
7893}
7894
7895/**
7896 * ipr_initiate_ioa_reset - Initiate an adapter reset
7897 * @ioa_cfg: ioa config struct
7898 * @shutdown_type: shutdown type
7899 *
7900 * Description: This function will initiate the reset of the given adapter.
7901 * If the caller needs to wait on the completion of the reset,
7902 * the caller must sleep on the reset_wait_q.
7903 *
7904 * Return value:
7905 * none
7906 **/
7907static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7908 enum ipr_shutdown_type shutdown_type)
7909{
7910 if (ioa_cfg->ioa_is_dead)
7911 return;
7912
7913 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7914 ioa_cfg->sdt_state = ABORT_DUMP;
7915
7916 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7917 dev_err(&ioa_cfg->pdev->dev,
7918 "IOA taken offline - error recovery failed\n");
7919
7920 ioa_cfg->reset_retries = 0;
7921 ioa_cfg->ioa_is_dead = 1;
7922
7923 if (ioa_cfg->in_ioa_bringdown) {
7924 ioa_cfg->reset_cmd = NULL;
7925 ioa_cfg->in_reset_reload = 0;
7926 ipr_fail_all_ops(ioa_cfg);
7927 wake_up_all(&ioa_cfg->reset_wait_q);
7928
7929 spin_unlock_irq(ioa_cfg->host->host_lock);
7930 scsi_unblock_requests(ioa_cfg->host);
7931 spin_lock_irq(ioa_cfg->host->host_lock);
7932 return;
7933 } else {
7934 ioa_cfg->in_ioa_bringdown = 1;
7935 shutdown_type = IPR_SHUTDOWN_NONE;
7936 }
7937 }
7938
7939 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7940 shutdown_type);
7941}
7942
f8a88b19
LV		 7943/**
7944 * ipr_reset_freeze - Hold off all I/O activity
7945 * @ipr_cmd: ipr command struct
7946 *
7947 * Description: If the PCI slot is frozen, hold off all I/O
7948 * activity; then, as soon as the slot is available again,
7949 * initiate an adapter reset.
7950 */
7951static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7952{
7953 /* Disallow new interrupts, avoid loop */
7954 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7955 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7956 ipr_cmd->done = ipr_reset_ioa_job;
7957 return IPR_RC_JOB_RETURN;
7958}
7959
7960/**
7961 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7962 * @pdev: PCI device struct
7963 *
7964 * Description: This routine is called to tell us that the PCI bus
7965 * is down. Can't do anything here, except put the device driver
7966 * into a holding pattern, waiting for the PCI bus to come back.
7967 */
7968static void ipr_pci_frozen(struct pci_dev *pdev)
7969{
7970 unsigned long flags = 0;
7971 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7972
7973 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7974 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
7975 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7976}
7977
7978/**
7979 * ipr_pci_slot_reset - Called when PCI slot has been reset.
7980 * @pdev: PCI device struct
7981 *
7982 * Description: This routine is called by the pci error recovery
7983 * code after the PCI slot has been reset, just before we
7984 * should resume normal operations.
7985 */
7986static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
7987{
7988 unsigned long flags = 0;
7989 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7990
7991 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
463fc696
BK		 7992 if (ioa_cfg->needs_warm_reset)
7993 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7994 else
7995 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
7996 IPR_SHUTDOWN_NONE);
f8a88b19
LV		 7997 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7998 return PCI_ERS_RESULT_RECOVERED;
7999}
8000
8001/**
8002 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8003 * @pdev: PCI device struct
8004 *
8005 * Description: This routine is called when the PCI bus has
8006 * permanently failed.
8007 */
8008static void ipr_pci_perm_failure(struct pci_dev *pdev)
8009{
8010 unsigned long flags = 0;
8011 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8012
8013 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8014 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8015 ioa_cfg->sdt_state = ABORT_DUMP;
8016 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8017 ioa_cfg->in_ioa_bringdown = 1;
6ff63896 8018 ioa_cfg->allow_cmds = 0;
f8a88b19
LV		 8019 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8020 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8021}
8022
8023/**
8024 * ipr_pci_error_detected - Called when a PCI error is detected.
8025 * @pdev: PCI device struct
8026 * @state: PCI channel state
8027 *
8028 * Description: Called when a PCI error is detected.
8029 *
8030 * Return value:
8031 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8032 */
8033static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8034 pci_channel_state_t state)
8035{
8036 switch (state) {
8037 case pci_channel_io_frozen:
8038 ipr_pci_frozen(pdev);
8039 return PCI_ERS_RESULT_NEED_RESET;
8040 case pci_channel_io_perm_failure:
8041 ipr_pci_perm_failure(pdev);
8042 return PCI_ERS_RESULT_DISCONNECT;
8043 break;
8044 default:
8045 break;
8046 }
8047 return PCI_ERS_RESULT_NEED_RESET;
8048}
8049
1da177e4
LT		 8050/**
8051 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8052 * @ioa_cfg: ioa cfg struct
8053 *
8054 * Description: This is the second phase of adapter intialization
8055 * This function takes care of initilizing the adapter to the point
8056 * where it can accept new commands.
8057
8058 * Return value:
b1c11812 8059 * 0 on success / -EIO on failure
1da177e4
LT		 8060 **/
8061static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8062{
8063 int rc = 0;
8064 unsigned long host_lock_flags = 0;
8065
8066 ENTER;
8067 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8068 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
ce155cce 8069 if (ioa_cfg->needs_hard_reset) {
8070 ioa_cfg->needs_hard_reset = 0;
8071 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8072 } else
8073 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8074 IPR_SHUTDOWN_NONE);
1da177e4
LT		 8075
8076 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8077 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8078 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8079
8080 if (ioa_cfg->ioa_is_dead) {
8081 rc = -EIO;
8082 } else if (ipr_invalid_adapter(ioa_cfg)) {
8083 if (!ipr_testmode)
8084 rc = -EIO;
8085
8086 dev_err(&ioa_cfg->pdev->dev,
8087 "Adapter not supported in this hardware configuration.\n");
8088 }
8089
8090 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8091
8092 LEAVE;
8093 return rc;
8094}
8095
8096/**
8097 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8098 * @ioa_cfg: ioa config struct
8099 *
8100 * Return value:
8101 * none
8102 **/
8103static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8104{
8105 int i;
8106
8107 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8108 if (ioa_cfg->ipr_cmnd_list[i])
8109 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8110 ioa_cfg->ipr_cmnd_list[i],
8111 ioa_cfg->ipr_cmnd_list_dma[i]);
8112
8113 ioa_cfg->ipr_cmnd_list[i] = NULL;
8114 }
8115
8116 if (ioa_cfg->ipr_cmd_pool)
8117 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8118
8119 ioa_cfg->ipr_cmd_pool = NULL;
8120}
8121
8122/**
8123 * ipr_free_mem - Frees memory allocated for an adapter
8124 * @ioa_cfg: ioa cfg struct
8125 *
8126 * Return value:
8127 * nothing
8128 **/
8129static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8130{
8131 int i;
8132
8133 kfree(ioa_cfg->res_entries);
8134 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8135 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8136 ipr_free_cmd_blks(ioa_cfg);
8137 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8138 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
3e7ebdfa
WB		 8139 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8140 ioa_cfg->u.cfg_table,
1da177e4
LT		 8141 ioa_cfg->cfg_table_dma);
8142
8143 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8144 pci_free_consistent(ioa_cfg->pdev,
8145 sizeof(struct ipr_hostrcb),
8146 ioa_cfg->hostrcb[i],
8147 ioa_cfg->hostrcb_dma[i]);
8148 }
8149
8150 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8151 kfree(ioa_cfg->trace);
8152}
8153
8154/**
8155 * ipr_free_all_resources - Free all allocated resources for an adapter.
8156 * @ipr_cmd: ipr command struct
8157 *
8158 * This function frees all allocated resources for the
8159 * specified adapter.
8160 *
8161 * Return value:
8162 * none
8163 **/
8164static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8165{
8166 struct pci_dev *pdev = ioa_cfg->pdev;
8167
8168 ENTER;
8169 free_irq(pdev->irq, ioa_cfg);
5a9ef25b 8170 pci_disable_msi(pdev);
1da177e4
LT		 8171 iounmap(ioa_cfg->hdw_dma_regs);
8172 pci_release_regions(pdev);
8173 ipr_free_mem(ioa_cfg);
8174 scsi_host_put(ioa_cfg->host);
8175 pci_disable_device(pdev);
8176 LEAVE;
8177}
8178
8179/**
8180 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8181 * @ioa_cfg: ioa config struct
8182 *
8183 * Return value:
8184 * 0 on success / -ENOMEM on allocation failure
8185 **/
8186static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8187{
8188 struct ipr_cmnd *ipr_cmd;
8189 struct ipr_ioarcb *ioarcb;
8190 dma_addr_t dma_addr;
8191 int i;
8192
8193 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
a32c055f 8194 sizeof(struct ipr_cmnd), 16, 0);
1da177e4
LT		 8195
8196 if (!ioa_cfg->ipr_cmd_pool)
8197 return -ENOMEM;
8198
8199 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
e94b1766 8200 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 8201
8202 if (!ipr_cmd) {
8203 ipr_free_cmd_blks(ioa_cfg);
8204 return -ENOMEM;
8205 }
8206
8207 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8208 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8209 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8210
8211 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 8212 ipr_cmd->dma_addr = dma_addr;
8213 if (ioa_cfg->sis64)
8214 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8215 else
8216 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8217
1da177e4 8218 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 8219 if (ioa_cfg->sis64) {
8220 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8221 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8222 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 8223 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 8224 } else {
8225 ioarcb->write_ioadl_addr =
8226 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8227 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8228 ioarcb->ioasa_host_pci_addr =
96d21f00 8229 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 8230 }
1da177e4
LT		 8231 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8232 ipr_cmd->cmd_index = i;
8233 ipr_cmd->ioa_cfg = ioa_cfg;
8234 ipr_cmd->sense_buffer_dma = dma_addr +
8235 offsetof(struct ipr_cmnd, sense_buffer);
8236
8237 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8238 }
8239
8240 return 0;
8241}
8242
8243/**
8244 * ipr_alloc_mem - Allocate memory for an adapter
8245 * @ioa_cfg: ioa config struct
8246 *
8247 * Return value:
8248 * 0 on success / non-zero for error
8249 **/
8250static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8251{
8252 struct pci_dev *pdev = ioa_cfg->pdev;
8253 int i, rc = -ENOMEM;
8254
8255 ENTER;
0bc42e35 8256 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 8257 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 8258
8259 if (!ioa_cfg->res_entries)
8260 goto out;
8261
3e7ebdfa
WB		 8262 if (ioa_cfg->sis64) {
8263 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8264 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8265 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8266 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8267 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8268 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8269 }
8270
8271 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 8272 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 8273 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8274 }
1da177e4
LT		 8275
8276 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8277 sizeof(struct ipr_misc_cbs),
8278 &ioa_cfg->vpd_cbs_dma);
8279
8280 if (!ioa_cfg->vpd_cbs)
8281 goto out_free_res_entries;
8282
8283 if (ipr_alloc_cmd_blks(ioa_cfg))
8284 goto out_free_vpd_cbs;
8285
8286 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8287 sizeof(u32) * IPR_NUM_CMD_BLKS,
8288 &ioa_cfg->host_rrq_dma);
8289
8290 if (!ioa_cfg->host_rrq)
8291 goto out_ipr_free_cmd_blocks;
8292
3e7ebdfa
WB		 8293 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8294 ioa_cfg->cfg_table_size,
8295 &ioa_cfg->cfg_table_dma);
1da177e4 8296
3e7ebdfa 8297 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 8298 goto out_free_host_rrq;
8299
8300 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8301 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8302 sizeof(struct ipr_hostrcb),
8303 &ioa_cfg->hostrcb_dma[i]);
8304
8305 if (!ioa_cfg->hostrcb[i])
8306 goto out_free_hostrcb_dma;
8307
8308 ioa_cfg->hostrcb[i]->hostrcb_dma =
8309 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 8310 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 8311 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8312 }
8313
0bc42e35 8314 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 8315 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8316
8317 if (!ioa_cfg->trace)
8318 goto out_free_hostrcb_dma;
8319
1da177e4
LT		 8320 rc = 0;
8321out:
8322 LEAVE;
8323 return rc;
8324
8325out_free_hostrcb_dma:
8326 while (i-- > 0) {
8327 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8328 ioa_cfg->hostrcb[i],
8329 ioa_cfg->hostrcb_dma[i]);
8330 }
3e7ebdfa
WB		 8331 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8332 ioa_cfg->u.cfg_table,
8333 ioa_cfg->cfg_table_dma);
1da177e4
LT		 8334out_free_host_rrq:
8335 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8336 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8337out_ipr_free_cmd_blocks:
8338 ipr_free_cmd_blks(ioa_cfg);
8339out_free_vpd_cbs:
8340 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8341 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8342out_free_res_entries:
8343 kfree(ioa_cfg->res_entries);
8344 goto out;
8345}
8346
8347/**
8348 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8349 * @ioa_cfg: ioa config struct
8350 *
8351 * Return value:
8352 * none
8353 **/
8354static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8355{
8356 int i;
8357
8358 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8359 ioa_cfg->bus_attr[i].bus = i;
8360 ioa_cfg->bus_attr[i].qas_enabled = 0;
8361 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8362 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8363 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8364 else
8365 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8366 }
8367}
8368
8369/**
8370 * ipr_init_ioa_cfg - Initialize IOA config struct
8371 * @ioa_cfg: ioa config struct
8372 * @host: scsi host struct
8373 * @pdev: PCI dev struct
8374 *
8375 * Return value:
8376 * none
8377 **/
8378static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8379 struct Scsi_Host *host, struct pci_dev *pdev)
8380{
8381 const struct ipr_interrupt_offsets *p;
8382 struct ipr_interrupts *t;
8383 void __iomem *base;
8384
8385 ioa_cfg->host = host;
8386 ioa_cfg->pdev = pdev;
8387 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 8388 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 8389 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8390 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8391 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8392 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8393 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8394 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8395 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8396 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8397
8398 INIT_LIST_HEAD(&ioa_cfg->free_q);
8399 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8400 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8401 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8402 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8403 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 8404 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 8405 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 8406 init_waitqueue_head(&ioa_cfg->msi_wait_q);
1da177e4
LT		 8407 ioa_cfg->sdt_state = INACTIVE;
8408
8409 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 8410 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 8411
3e7ebdfa
WB		 8412 if (ioa_cfg->sis64) {
8413 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8414 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8415 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8416 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8417 } else {
8418 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8419 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8420 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8421 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8422 }
1da177e4
LT		 8423 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8424 host->unique_id = host->host_no;
8425 host->max_cmd_len = IPR_MAX_CDB_LEN;
8426 pci_set_drvdata(pdev, ioa_cfg);
8427
8428 p = &ioa_cfg->chip_cfg->regs;
8429 t = &ioa_cfg->regs;
8430 base = ioa_cfg->hdw_dma_regs;
8431
8432 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8433 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
214777ba 8434 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
1da177e4 8435 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
214777ba 8436 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
1da177e4 8437 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
214777ba 8438 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
1da177e4 8439 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
214777ba 8440 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
1da177e4
LT		 8441 t->ioarrin_reg = base + p->ioarrin_reg;
8442 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
214777ba 8443 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
1da177e4 8444 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
214777ba 8445 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
1da177e4 8446 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
214777ba 8447 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
dcbad00e
WB		 8448
8449 if (ioa_cfg->sis64) {
214777ba 8450 t->init_feedback_reg = base + p->init_feedback_reg;
dcbad00e
WB		 8451 t->dump_addr_reg = base + p->dump_addr_reg;
8452 t->dump_data_reg = base + p->dump_data_reg;
8701f185 8453 t->endian_swap_reg = base + p->endian_swap_reg;
dcbad00e 8454 }
1da177e4
LT		 8455}
8456
8457/**
1be7bd82 8458 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 8459 * @dev_id: PCI device id struct
8460 *
8461 * Return value:
1be7bd82 8462 * ptr to chip information on success / NULL on failure
1da177e4 8463 **/
1be7bd82
WB		 8464static const struct ipr_chip_t * __devinit
8465ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 8466{
8467 int i;
8468
1da177e4
LT		 8469 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8470 if (ipr_chip[i].vendor == dev_id->vendor &&
8471 ipr_chip[i].device == dev_id->device)
1be7bd82 8472 return &ipr_chip[i];
1da177e4
LT		 8473 return NULL;
8474}
8475
95fecd90
WB		 8476/**
8477 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8478 * @pdev: PCI device struct
8479 *
8480 * Description: Simply set the msi_received flag to 1 indicating that
8481 * Message Signaled Interrupts are supported.
8482 *
8483 * Return value:
8484 * 0 on success / non-zero on failure
8485 **/
8486static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8487{
8488 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8489 unsigned long lock_flags = 0;
8490 irqreturn_t rc = IRQ_HANDLED;
8491
8492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8493
8494 ioa_cfg->msi_received = 1;
8495 wake_up(&ioa_cfg->msi_wait_q);
8496
8497 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8498 return rc;
8499}
8500
8501/**
8502 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8503 * @pdev: PCI device struct
8504 *
8505 * Description: The return value from pci_enable_msi() can not always be
8506 * trusted. This routine sets up and initiates a test interrupt to determine
8507 * if the interrupt is received via the ipr_test_intr() service routine.
8508 * If the tests fails, the driver will fall back to LSI.
8509 *
8510 * Return value:
8511 * 0 on success / non-zero on failure
8512 **/
8513static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8514 struct pci_dev *pdev)
8515{
8516 int rc;
8517 volatile u32 int_reg;
8518 unsigned long lock_flags = 0;
8519
8520 ENTER;
8521
8522 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8523 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8524 ioa_cfg->msi_received = 0;
8525 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 8526 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 8527 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8528 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8529
8530 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8531 if (rc) {
8532 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8533 return rc;
8534 } else if (ipr_debug)
8535 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8536
214777ba 8537 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 8538 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8539 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8540 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8541
8542 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8543 if (!ioa_cfg->msi_received) {
8544 /* MSI test failed */
8545 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8546 rc = -EOPNOTSUPP;
8547 } else if (ipr_debug)
8548 dev_info(&pdev->dev, "MSI test succeeded.\n");
8549
8550 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8551
8552 free_irq(pdev->irq, ioa_cfg);
8553
8554 LEAVE;
8555
8556 return rc;
8557}
8558
1da177e4
LT		 8559/**
8560 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8561 * @pdev: PCI device struct
8562 * @dev_id: PCI device id struct
8563 *
8564 * Return value:
8565 * 0 on success / non-zero on failure
8566 **/
8567static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8568 const struct pci_device_id *dev_id)
8569{
8570 struct ipr_ioa_cfg *ioa_cfg;
8571 struct Scsi_Host *host;
8572 unsigned long ipr_regs_pci;
8573 void __iomem *ipr_regs;
a2a65a3e 8574 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 8575 volatile u32 mask, uproc, interrupts;
1da177e4
LT		 8576
8577 ENTER;
8578
8579 if ((rc = pci_enable_device(pdev))) {
8580 dev_err(&pdev->dev, "Cannot enable adapter\n");
8581 goto out;
8582 }
8583
8584 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8585
8586 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8587
8588 if (!host) {
8589 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8590 rc = -ENOMEM;
8591 goto out_disable;
8592 }
8593
8594 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8595 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
35a39691
BK		 8596 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8597 sata_port_info.flags, &ipr_sata_ops);
1da177e4 8598
1be7bd82 8599 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 8600
1be7bd82 8601 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 8602 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8603 dev_id->vendor, dev_id->device);
8604 goto out_scsi_host_put;
8605 }
8606
a32c055f
WB		 8607 /* set SIS 32 or SIS 64 */
8608 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82
WB		 8609 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8610
5469cb5b
BK		 8611 if (ipr_transop_timeout)
8612 ioa_cfg->transop_timeout = ipr_transop_timeout;
8613 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8614 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8615 else
8616 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8617
44c10138 8618 ioa_cfg->revid = pdev->revision;
463fc696 8619
1da177e4
LT		 8620 ipr_regs_pci = pci_resource_start(pdev, 0);
8621
8622 rc = pci_request_regions(pdev, IPR_NAME);
8623 if (rc < 0) {
8624 dev_err(&pdev->dev,
8625 "Couldn't register memory range of registers\n");
8626 goto out_scsi_host_put;
8627 }
8628
25729a7f 8629 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 8630
8631 if (!ipr_regs) {
8632 dev_err(&pdev->dev,
8633 "Couldn't map memory range of registers\n");
8634 rc = -ENOMEM;
8635 goto out_release_regions;
8636 }
8637
8638 ioa_cfg->hdw_dma_regs = ipr_regs;
8639 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8640 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8641
8642 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8643
8644 pci_set_master(pdev);
8645
a32c055f
WB		 8646 if (ioa_cfg->sis64) {
8647 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8648 if (rc < 0) {
8649 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8650 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8651 }
8652
8653 } else
8654 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8655
1da177e4
LT		 8656 if (rc < 0) {
8657 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8658 goto cleanup_nomem;
8659 }
8660
8661 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8662 ioa_cfg->chip_cfg->cache_line_size);
8663
8664 if (rc != PCIBIOS_SUCCESSFUL) {
8665 dev_err(&pdev->dev, "Write of cache line size failed\n");
8666 rc = -EIO;
8667 goto cleanup_nomem;
8668 }
8669
95fecd90 8670 /* Enable MSI style interrupts if they are supported. */
1be7bd82 8671 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
95fecd90
WB		 8672 rc = ipr_test_msi(ioa_cfg, pdev);
8673 if (rc == -EOPNOTSUPP)
8674 pci_disable_msi(pdev);
8675 else if (rc)
8676 goto out_msi_disable;
8677 else
8678 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8679 } else if (ipr_debug)
8680 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8681
1da177e4
LT		 8682 /* Save away PCI config space for use following IOA reset */
8683 rc = pci_save_state(pdev);
8684
8685 if (rc != PCIBIOS_SUCCESSFUL) {
8686 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8687 rc = -EIO;
8688 goto cleanup_nomem;
8689 }
8690
8691 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8692 goto cleanup_nomem;
8693
8694 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8695 goto cleanup_nomem;
8696
3e7ebdfa
WB		 8697 if (ioa_cfg->sis64)
8698 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8699 + ((sizeof(struct ipr_config_table_entry64)
8700 * ioa_cfg->max_devs_supported)));
8701 else
8702 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8703 + ((sizeof(struct ipr_config_table_entry)
8704 * ioa_cfg->max_devs_supported)));
8705
1da177e4
LT		 8706 rc = ipr_alloc_mem(ioa_cfg);
8707 if (rc < 0) {
8708 dev_err(&pdev->dev,
8709 "Couldn't allocate enough memory for device driver!\n");
8710 goto cleanup_nomem;
8711 }
8712
ce155cce 8713 /*
8714 * If HRRQ updated interrupt is not masked, or reset alert is set,
8715 * the card is in an unknown state and needs a hard reset
8716 */
214777ba
WB		 8717 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8718 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8719 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce 8720 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8721 ioa_cfg->needs_hard_reset = 1;
473b1e8e
BK		 8722 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8723 ioa_cfg->needs_hard_reset = 1;
8724 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8725 ioa_cfg->ioa_unit_checked = 1;
ce155cce 8726
1da177e4 8727 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
95fecd90
WB		 8728 rc = request_irq(pdev->irq, ipr_isr,
8729 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8730 IPR_NAME, ioa_cfg);
1da177e4
LT		 8731
8732 if (rc) {
8733 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8734 pdev->irq, rc);
8735 goto cleanup_nolog;
8736 }
8737
463fc696
BK		 8738 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8739 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8740 ioa_cfg->needs_warm_reset = 1;
8741 ioa_cfg->reset = ipr_reset_slot_reset;
8742 } else
8743 ioa_cfg->reset = ipr_reset_start_bist;
8744
1da177e4
LT		 8745 spin_lock(&ipr_driver_lock);
8746 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8747 spin_unlock(&ipr_driver_lock);
8748
8749 LEAVE;
8750out:
8751 return rc;
8752
8753cleanup_nolog:
8754 ipr_free_mem(ioa_cfg);
8755cleanup_nomem:
8756 iounmap(ipr_regs);
95fecd90
WB		 8757out_msi_disable:
8758 pci_disable_msi(pdev);
1da177e4
LT		 8759out_release_regions:
8760 pci_release_regions(pdev);
8761out_scsi_host_put:
8762 scsi_host_put(host);
8763out_disable:
8764 pci_disable_device(pdev);
8765 goto out;
8766}
8767
8768/**
8769 * ipr_scan_vsets - Scans for VSET devices
8770 * @ioa_cfg: ioa config struct
8771 *
8772 * Description: Since the VSET resources do not follow SAM in that we can have
8773 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8774 *
8775 * Return value:
8776 * none
8777 **/
8778static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8779{
8780 int target, lun;
8781
8782 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8783 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8784 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8785}
8786
8787/**
8788 * ipr_initiate_ioa_bringdown - Bring down an adapter
8789 * @ioa_cfg: ioa config struct
8790 * @shutdown_type: shutdown type
8791 *
8792 * Description: This function will initiate bringing down the adapter.
8793 * This consists of issuing an IOA shutdown to the adapter
8794 * to flush the cache, and running BIST.
8795 * If the caller needs to wait on the completion of the reset,
8796 * the caller must sleep on the reset_wait_q.
8797 *
8798 * Return value:
8799 * none
8800 **/
8801static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8802 enum ipr_shutdown_type shutdown_type)
8803{
8804 ENTER;
8805 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8806 ioa_cfg->sdt_state = ABORT_DUMP;
8807 ioa_cfg->reset_retries = 0;
8808 ioa_cfg->in_ioa_bringdown = 1;
8809 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8810 LEAVE;
8811}
8812
8813/**
8814 * __ipr_remove - Remove a single adapter
8815 * @pdev: pci device struct
8816 *
8817 * Adapter hot plug remove entry point.
8818 *
8819 * Return value:
8820 * none
8821 **/
8822static void __ipr_remove(struct pci_dev *pdev)
8823{
8824 unsigned long host_lock_flags = 0;
8825 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8826 ENTER;
8827
8828 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
970ea294
BK		 8829 while(ioa_cfg->in_reset_reload) {
8830 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8831 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8832 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8833 }
8834
1da177e4
LT		 8835 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8836
8837 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8838 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5cbf5eae 8839 flush_scheduled_work();
1da177e4
LT		 8840 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8841
8842 spin_lock(&ipr_driver_lock);
8843 list_del(&ioa_cfg->queue);
8844 spin_unlock(&ipr_driver_lock);
8845
8846 if (ioa_cfg->sdt_state == ABORT_DUMP)
8847 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8848 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8849
8850 ipr_free_all_resources(ioa_cfg);
8851
8852 LEAVE;
8853}
8854
8855/**
8856 * ipr_remove - IOA hot plug remove entry point
8857 * @pdev: pci device struct
8858 *
8859 * Adapter hot plug remove entry point.
8860 *
8861 * Return value:
8862 * none
8863 **/
f381642d 8864static void __devexit ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 8865{
8866 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8867
8868 ENTER;
8869
ee959b00 8870 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 8871 &ipr_trace_attr);
ee959b00 8872 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 8873 &ipr_dump_attr);
8874 scsi_remove_host(ioa_cfg->host);
8875
8876 __ipr_remove(pdev);
8877
8878 LEAVE;
8879}
8880
8881/**
8882 * ipr_probe - Adapter hot plug add entry point
8883 *
8884 * Return value:
8885 * 0 on success / non-zero on failure
8886 **/
8887static int __devinit ipr_probe(struct pci_dev *pdev,
8888 const struct pci_device_id *dev_id)
8889{
8890 struct ipr_ioa_cfg *ioa_cfg;
8891 int rc;
8892
8893 rc = ipr_probe_ioa(pdev, dev_id);
8894
8895 if (rc)
8896 return rc;
8897
8898 ioa_cfg = pci_get_drvdata(pdev);
8899 rc = ipr_probe_ioa_part2(ioa_cfg);
8900
8901 if (rc) {
8902 __ipr_remove(pdev);
8903 return rc;
8904 }
8905
8906 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8907
8908 if (rc) {
8909 __ipr_remove(pdev);
8910 return rc;
8911 }
8912
ee959b00 8913 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 8914 &ipr_trace_attr);
8915
8916 if (rc) {
8917 scsi_remove_host(ioa_cfg->host);
8918 __ipr_remove(pdev);
8919 return rc;
8920 }
8921
ee959b00 8922 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 8923 &ipr_dump_attr);
8924
8925 if (rc) {
ee959b00 8926 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 8927 &ipr_trace_attr);
8928 scsi_remove_host(ioa_cfg->host);
8929 __ipr_remove(pdev);
8930 return rc;
8931 }
8932
8933 scsi_scan_host(ioa_cfg->host);
8934 ipr_scan_vsets(ioa_cfg);
8935 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8936 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 8937 ioa_cfg->host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 8938 schedule_work(&ioa_cfg->work_q);
8939 return 0;
8940}
8941
8942/**
8943 * ipr_shutdown - Shutdown handler.
d18c3db5 8944 * @pdev: pci device struct
1da177e4
LT		 8945 *
8946 * This function is invoked upon system shutdown/reboot. It will issue
8947 * an adapter shutdown to the adapter to flush the write cache.
8948 *
8949 * Return value:
8950 * none
8951 **/
d18c3db5 8952static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 8953{
d18c3db5 8954 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4
LT		 8955 unsigned long lock_flags = 0;
8956
8957 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 8958 while(ioa_cfg->in_reset_reload) {
8959 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8960 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8961 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8962 }
8963
1da177e4
LT		 8964 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8965 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8966 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8967}
8968
8969static struct pci_device_id ipr_pci_table[] __devinitdata = {
8970 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 8971 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 8972 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 8973 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 8974 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 8975 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 8976 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 8977 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 8978 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 8979 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 8980 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 8981 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 8982 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 8983 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 8984 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 8985 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
8986 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 8987 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 8988 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 8989 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 8990 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8991 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 8992 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 8993 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8994 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 8995 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 8996 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 8997 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 8998 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8999 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 9000 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 9001 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9002 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 9003 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 9004 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9005 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 9006 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9007 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 9008 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9009 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 9010 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 9011 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 9012 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 9013 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 9014 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 9015 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 9016 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 9017 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9018 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9019 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9020 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9021 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9022 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 9023 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9024 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9025 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9026 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9027 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9028 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
32622bde
WB		 9029 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9030 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
d7b4627f
WB		 9031 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9032 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9033 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9034 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9035 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9036 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9037 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9038 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
9039 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9040 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
1da177e4
LT		 9041 { }
9042};
9043MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9044
f8a88b19
LV		 9045static struct pci_error_handlers ipr_err_handler = {
9046 .error_detected = ipr_pci_error_detected,
9047 .slot_reset = ipr_pci_slot_reset,
9048};
9049
1da177e4
LT		 9050static struct pci_driver ipr_driver = {
9051 .name = IPR_NAME,
9052 .id_table = ipr_pci_table,
9053 .probe = ipr_probe,
f381642d 9054 .remove = __devexit_p(ipr_remove),
d18c3db5 9055 .shutdown = ipr_shutdown,
f8a88b19 9056 .err_handler = &ipr_err_handler,
1da177e4
LT		 9057};
9058
f72919ec
WB		 9059/**
9060 * ipr_halt_done - Shutdown prepare completion
9061 *
9062 * Return value:
9063 * none
9064 **/
9065static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9066{
9067 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9068
9069 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9070}
9071
9072/**
9073 * ipr_halt - Issue shutdown prepare to all adapters
9074 *
9075 * Return value:
9076 * NOTIFY_OK on success / NOTIFY_DONE on failure
9077 **/
9078static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9079{
9080 struct ipr_cmnd *ipr_cmd;
9081 struct ipr_ioa_cfg *ioa_cfg;
9082 unsigned long flags = 0;
9083
9084 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9085 return NOTIFY_DONE;
9086
9087 spin_lock(&ipr_driver_lock);
9088
9089 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9090 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9091 if (!ioa_cfg->allow_cmds) {
9092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9093 continue;
9094 }
9095
9096 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9097 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9098 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9099 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9100 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9101
9102 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9104 }
9105 spin_unlock(&ipr_driver_lock);
9106
9107 return NOTIFY_OK;
9108}
9109
9110static struct notifier_block ipr_notifier = {
9111 ipr_halt, NULL, 0
9112};
9113
1da177e4
LT		 9114/**
9115 * ipr_init - Module entry point
9116 *
9117 * Return value:
9118 * 0 on success / negative value on failure
9119 **/
9120static int __init ipr_init(void)
9121{
9122 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9123 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9124
f72919ec 9125 register_reboot_notifier(&ipr_notifier);
dcbccbde 9126 return pci_register_driver(&ipr_driver);
1da177e4
LT		 9127}
9128
9129/**
9130 * ipr_exit - Module unload
9131 *
9132 * Module unload entry point.
9133 *
9134 * Return value:
9135 * none
9136 **/
9137static void __exit ipr_exit(void)
9138{
f72919ec 9139 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 9140 pci_unregister_driver(&ipr_driver);
9141}
9142
9143module_init(ipr_init);
9144module_exit(ipr_exit);
Linux kernel - Deliverables
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