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[SCSI] ipr: Remove unnecessary interrupt clearing on new adapters
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
1da177e4
LT		 101static DEFINE_SPINLOCK(ipr_driver_lock);
102
103/* This table describes the differences between DMA controller chips */
104static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 105 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4
LT		 106 .mailbox = 0x0042C,
107 .cache_line_size = 0x20,
7dd21308 108 .clear_isr = 1,
1da177e4
LT		 109 {
110 .set_interrupt_mask_reg = 0x0022C,
111 .clr_interrupt_mask_reg = 0x00230,
214777ba 112 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 113 .sense_interrupt_mask_reg = 0x0022C,
214777ba 114 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 115 .clr_interrupt_reg = 0x00228,
214777ba 116 .clr_interrupt_reg32 = 0x00228,
1da177e4 117 .sense_interrupt_reg = 0x00224,
214777ba 118 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 119 .ioarrin_reg = 0x00404,
120 .sense_uproc_interrupt_reg = 0x00214,
214777ba 121 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 122 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 123 .set_uproc_interrupt_reg32 = 0x00214,
124 .clr_uproc_interrupt_reg = 0x00218,
125 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 126 }
127 },
128 { /* Snipe and Scamp */
129 .mailbox = 0x0052C,
130 .cache_line_size = 0x20,
7dd21308 131 .clear_isr = 1,
1da177e4
LT		 132 {
133 .set_interrupt_mask_reg = 0x00288,
134 .clr_interrupt_mask_reg = 0x0028C,
214777ba 135 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 136 .sense_interrupt_mask_reg = 0x00288,
214777ba 137 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 138 .clr_interrupt_reg = 0x00284,
214777ba 139 .clr_interrupt_reg32 = 0x00284,
1da177e4 140 .sense_interrupt_reg = 0x00280,
214777ba 141 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 142 .ioarrin_reg = 0x00504,
143 .sense_uproc_interrupt_reg = 0x00290,
214777ba 144 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 145 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 146 .set_uproc_interrupt_reg32 = 0x00290,
147 .clr_uproc_interrupt_reg = 0x00294,
148 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 149 }
150 },
a74c1639 151 { /* CRoC */
110def85 152 .mailbox = 0x00044,
a74c1639 153 .cache_line_size = 0x20,
7dd21308 154 .clear_isr = 0,
a74c1639
WB		 155 {
156 .set_interrupt_mask_reg = 0x00010,
157 .clr_interrupt_mask_reg = 0x00018,
214777ba 158 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 159 .sense_interrupt_mask_reg = 0x00010,
214777ba 160 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 161 .clr_interrupt_reg = 0x00008,
214777ba 162 .clr_interrupt_reg32 = 0x0000C,
a74c1639 163 .sense_interrupt_reg = 0x00000,
214777ba 164 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 165 .ioarrin_reg = 0x00070,
166 .sense_uproc_interrupt_reg = 0x00020,
214777ba 167 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 168 .set_uproc_interrupt_reg = 0x00020,
214777ba 169 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 170 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 171 .clr_uproc_interrupt_reg32 = 0x0002C,
172 .init_feedback_reg = 0x0005C,
dcbad00e 173 .dump_addr_reg = 0x00064,
8701f185
WB		 174 .dump_data_reg = 0x00068,
175 .endian_swap_reg = 0x00084
a74c1639
WB		 176 }
177 },
1da177e4
LT		 178};
179
180static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 181 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
187 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
188 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 189 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 190};
191
192static int ipr_max_bus_speeds [] = {
193 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
194};
195
196MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
197MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
198module_param_named(max_speed, ipr_max_speed, uint, 0);
199MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
200module_param_named(log_level, ipr_log_level, uint, 0);
201MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
202module_param_named(testmode, ipr_testmode, int, 0);
203MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 204module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 205MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
206module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
207MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 208module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 209MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 210module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
211MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 212module_param_named(max_devs, ipr_max_devs, int, 0);
213MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
214 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
1da177e4
LT		 215MODULE_LICENSE("GPL");
216MODULE_VERSION(IPR_DRIVER_VERSION);
217
1da177e4
LT		 218/* A constant array of IOASCs/URCs/Error Messages */
219static const
220struct ipr_error_table_t ipr_error_table[] = {
933916f3 221 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 222 "8155: An unknown error was received"},
223 {0x00330000, 0, 0,
224 "Soft underlength error"},
225 {0x005A0000, 0, 0,
226 "Command to be cancelled not found"},
227 {0x00808000, 0, 0,
228 "Qualified success"},
933916f3 229 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 230 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 231 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 232 "4101: Soft device bus fabric error"},
5aa3a333
WB		 233 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
234 "FFFC: Logical block guard error recovered by the device"},
235 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
236 "FFFC: Logical block reference tag error recovered by the device"},
237 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4171: Recovered scatter list tag / sequence number error"},
239 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
241 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
242 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
243 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
244 "FFFD: Recovered logical block reference tag error detected by the IOA"},
245 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 247 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 248 "FFF9: Device sector reassign successful"},
933916f3 249 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 250 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 251 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 252 "7001: IOA sector reassignment successful"},
933916f3 253 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 254 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 255 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 256 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 257 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 258 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 259 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 260 "FFF6: Device hardware error recovered by the IOA"},
933916f3 261 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 262 "FFF6: Device hardware error recovered by the device"},
933916f3 263 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 264 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 265 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 266 "FFFA: Undefined device response recovered by the IOA"},
933916f3 267 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 268 "FFF6: Device bus error, message or command phase"},
933916f3 269 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 270 "FFFE: Task Management Function failed"},
933916f3 271 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 272 "FFF6: Failure prediction threshold exceeded"},
933916f3 273 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 274 "8009: Impending cache battery pack failure"},
275 {0x02040400, 0, 0,
276 "34FF: Disk device format in progress"},
65f56475
BK		 277 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
278 "9070: IOA requested reset"},
1da177e4
LT		 279 {0x023F0000, 0, 0,
280 "Synchronization required"},
281 {0x024E0000, 0, 0,
282 "No ready, IOA shutdown"},
283 {0x025A0000, 0, 0,
284 "Not ready, IOA has been shutdown"},
933916f3 285 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 286 "3020: Storage subsystem configuration error"},
287 {0x03110B00, 0, 0,
288 "FFF5: Medium error, data unreadable, recommend reassign"},
289 {0x03110C00, 0, 0,
290 "7000: Medium error, data unreadable, do not reassign"},
933916f3 291 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 292 "FFF3: Disk media format bad"},
933916f3 293 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 294 "3002: Addressed device failed to respond to selection"},
933916f3 295 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 296 "3100: Device bus error"},
933916f3 297 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 298 "3109: IOA timed out a device command"},
299 {0x04088000, 0, 0,
300 "3120: SCSI bus is not operational"},
933916f3 301 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 302 "4100: Hard device bus fabric error"},
5aa3a333
WB		 303 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
304 "310C: Logical block guard error detected by the device"},
305 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
306 "310C: Logical block reference tag error detected by the device"},
307 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
308 "4170: Scatter list tag / sequence number error"},
309 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
310 "8150: Logical block CRC error on IOA to Host transfer"},
311 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
312 "4170: Logical block sequence number error on IOA to Host transfer"},
313 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
314 "310D: Logical block reference tag error detected by the IOA"},
315 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
316 "310D: Logical block guard error detected by the IOA"},
933916f3 317 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 318 "9000: IOA reserved area data check"},
933916f3 319 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 320 "9001: IOA reserved area invalid data pattern"},
933916f3 321 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 322 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 323 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
324 "Hardware Error, IOA metadata access error"},
933916f3 325 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 326 "102E: Out of alternate sectors for disk storage"},
933916f3 327 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 328 "FFF4: Data transfer underlength error"},
933916f3 329 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 330 "FFF4: Data transfer overlength error"},
933916f3 331 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 332 "3400: Logical unit failure"},
933916f3 333 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 334 "FFF4: Device microcode is corrupt"},
933916f3 335 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 336 "8150: PCI bus error"},
337 {0x04430000, 1, 0,
338 "Unsupported device bus message received"},
933916f3 339 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 340 "FFF4: Disk device problem"},
933916f3 341 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 342 "8150: Permanent IOA failure"},
933916f3 343 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 344 "3010: Disk device returned wrong response to IOA"},
933916f3 345 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 346 "8151: IOA microcode error"},
347 {0x04448500, 0, 0,
348 "Device bus status error"},
933916f3 349 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 350 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 351 {0x04448700, 0, 0,
352 "ATA device status error"},
1da177e4
LT		 353 {0x04490000, 0, 0,
354 "Message reject received from the device"},
933916f3 355 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 356 "8008: A permanent cache battery pack failure occurred"},
933916f3 357 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 358 "9090: Disk unit has been modified after the last known status"},
933916f3 359 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 360 "9081: IOA detected device error"},
933916f3 361 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 362 "9082: IOA detected device error"},
933916f3 363 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 364 "3110: Device bus error, message or command phase"},
933916f3 365 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 366 "3110: SAS Command / Task Management Function failed"},
933916f3 367 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 368 "9091: Incorrect hardware configuration change has been detected"},
933916f3 369 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 370 "9073: Invalid multi-adapter configuration"},
933916f3 371 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 372 "4010: Incorrect connection between cascaded expanders"},
933916f3 373 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 374 "4020: Connections exceed IOA design limits"},
933916f3 375 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 376 "4030: Incorrect multipath connection"},
933916f3 377 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 378 "4110: Unsupported enclosure function"},
933916f3 379 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 380 "FFF4: Command to logical unit failed"},
381 {0x05240000, 1, 0,
382 "Illegal request, invalid request type or request packet"},
383 {0x05250000, 0, 0,
384 "Illegal request, invalid resource handle"},
b0df54bb
BK		 385 {0x05258000, 0, 0,
386 "Illegal request, commands not allowed to this device"},
387 {0x05258100, 0, 0,
388 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 389 {0x05258200, 0, 0,
390 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 391 {0x05260000, 0, 0,
392 "Illegal request, invalid field in parameter list"},
393 {0x05260100, 0, 0,
394 "Illegal request, parameter not supported"},
395 {0x05260200, 0, 0,
396 "Illegal request, parameter value invalid"},
397 {0x052C0000, 0, 0,
398 "Illegal request, command sequence error"},
b0df54bb
BK		 399 {0x052C8000, 1, 0,
400 "Illegal request, dual adapter support not enabled"},
933916f3 401 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 402 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 403 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 404 "9040: Array protection temporarily suspended, protection resuming"},
933916f3 405 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 406 "3140: Device bus not ready to ready transition"},
933916f3 407 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 408 "FFFB: SCSI bus was reset"},
409 {0x06290500, 0, 0,
410 "FFFE: SCSI bus transition to single ended"},
411 {0x06290600, 0, 0,
412 "FFFE: SCSI bus transition to LVD"},
933916f3 413 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 414 "FFFB: SCSI bus was reset by another initiator"},
933916f3 415 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 416 "3029: A device replacement has occurred"},
933916f3 417 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 418 "9051: IOA cache data exists for a missing or failed device"},
933916f3 419 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 420 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 421 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 422 "9025: Disk unit is not supported at its physical location"},
933916f3 423 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 424 "3020: IOA detected a SCSI bus configuration error"},
933916f3 425 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 426 "3150: SCSI bus configuration error"},
933916f3 427 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 428 "9074: Asymmetric advanced function disk configuration"},
933916f3 429 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 430 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 431 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 432 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 433 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 434 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 435 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 436 "9076: Configuration error, missing remote IOA"},
933916f3 437 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 438 "4050: Enclosure does not support a required multipath function"},
b75424fc
WB		 439 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
440 "4070: Logically bad block written on device"},
933916f3 441 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 442 "9041: Array protection temporarily suspended"},
933916f3 443 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 444 "9042: Corrupt array parity detected on specified device"},
933916f3 445 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 446 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 447 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 448 "9071: Link operational transition"},
933916f3 449 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 450 "9072: Link not operational transition"},
933916f3 451 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 452 "9032: Array exposed but still protected"},
e435340c
BK		 453 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
454 "70DD: Device forced failed by disrupt device command"},
933916f3 455 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 456 "4061: Multipath redundancy level got better"},
933916f3 457 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 458 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 459 {0x07270000, 0, 0,
460 "Failure due to other device"},
933916f3 461 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 462 "9008: IOA does not support functions expected by devices"},
933916f3 463 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 464 "9010: Cache data associated with attached devices cannot be found"},
933916f3 465 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 466 "9011: Cache data belongs to devices other than those attached"},
933916f3 467 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 468 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 469 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 470 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 471 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 472 "9022: Exposed array is missing a required device"},
933916f3 473 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 474 "9023: Array member(s) not at required physical locations"},
933916f3 475 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 476 "9024: Array not functional due to present hardware configuration"},
933916f3 477 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 478 "9026: Array not functional due to present hardware configuration"},
933916f3 479 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 480 "9027: Array is missing a device and parity is out of sync"},
933916f3 481 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 482 "9028: Maximum number of arrays already exist"},
933916f3 483 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 484 "9050: Required cache data cannot be located for a disk unit"},
933916f3 485 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 486 "9052: Cache data exists for a device that has been modified"},
933916f3 487 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 488 "9054: IOA resources not available due to previous problems"},
933916f3 489 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 490 "9092: Disk unit requires initialization before use"},
933916f3 491 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 492 "9029: Incorrect hardware configuration change has been detected"},
933916f3 493 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 494 "9060: One or more disk pairs are missing from an array"},
933916f3 495 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 496 "9061: One or more disks are missing from an array"},
933916f3 497 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 498 "9062: One or more disks are missing from an array"},
933916f3 499 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 500 "9063: Maximum number of functional arrays has been exceeded"},
501 {0x0B260000, 0, 0,
502 "Aborted command, invalid descriptor"},
503 {0x0B5A0000, 0, 0,
504 "Command terminated by host"}
505};
506
507static const struct ipr_ses_table_entry ipr_ses_table[] = {
508 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
509 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
510 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
511 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
512 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
513 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
514 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
515 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
516 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
517 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
518 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
519 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
520 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
521};
522
523/*
524 * Function Prototypes
525 */
526static int ipr_reset_alert(struct ipr_cmnd *);
527static void ipr_process_ccn(struct ipr_cmnd *);
528static void ipr_process_error(struct ipr_cmnd *);
529static void ipr_reset_ioa_job(struct ipr_cmnd *);
530static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
531 enum ipr_shutdown_type);
532
533#ifdef CONFIG_SCSI_IPR_TRACE
534/**
535 * ipr_trc_hook - Add a trace entry to the driver trace
536 * @ipr_cmd: ipr command struct
537 * @type: trace type
538 * @add_data: additional data
539 *
540 * Return value:
541 * none
542 **/
543static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
544 u8 type, u32 add_data)
545{
546 struct ipr_trace_entry *trace_entry;
547 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
548
549 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
550 trace_entry->time = jiffies;
551 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
552 trace_entry->type = type;
a32c055f
WB		 553 if (ipr_cmd->ioa_cfg->sis64)
554 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
555 else
556 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 557 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 558 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
559 trace_entry->u.add_data = add_data;
560}
561#else
562#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
563#endif
564
565/**
566 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
567 * @ipr_cmd: ipr command struct
568 *
569 * Return value:
570 * none
571 **/
572static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
573{
574 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 575 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
576 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 577 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 578
579 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 580 ioarcb->data_transfer_length = 0;
1da177e4 581 ioarcb->read_data_transfer_length = 0;
a32c055f 582 ioarcb->ioadl_len = 0;
1da177e4 583 ioarcb->read_ioadl_len = 0;
a32c055f 584
96d21f00 585 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 586 ioarcb->u.sis64_addr_data.data_ioadl_addr =
587 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 588 ioasa64->u.gata.status = 0;
589 } else {
a32c055f
WB		 590 ioarcb->write_ioadl_addr =
591 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
592 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 593 ioasa->u.gata.status = 0;
a32c055f
WB		 594 }
595
96d21f00
WB		 596 ioasa->hdr.ioasc = 0;
597 ioasa->hdr.residual_data_len = 0;
1da177e4 598 ipr_cmd->scsi_cmd = NULL;
35a39691 599 ipr_cmd->qc = NULL;
1da177e4
LT		 600 ipr_cmd->sense_buffer[0] = 0;
601 ipr_cmd->dma_use_sg = 0;
602}
603
604/**
605 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
606 * @ipr_cmd: ipr command struct
607 *
608 * Return value:
609 * none
610 **/
611static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
612{
613 ipr_reinit_ipr_cmnd(ipr_cmd);
614 ipr_cmd->u.scratch = 0;
615 ipr_cmd->sibling = NULL;
616 init_timer(&ipr_cmd->timer);
617}
618
619/**
620 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
621 * @ioa_cfg: ioa config struct
622 *
623 * Return value:
624 * pointer to ipr command struct
625 **/
626static
627struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
628{
629 struct ipr_cmnd *ipr_cmd;
630
631 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
632 list_del(&ipr_cmd->queue);
633 ipr_init_ipr_cmnd(ipr_cmd);
634
635 return ipr_cmd;
636}
637
1da177e4
LT		 638/**
639 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
640 * @ioa_cfg: ioa config struct
641 * @clr_ints: interrupts to clear
642 *
643 * This function masks all interrupts on the adapter, then clears the
644 * interrupts specified in the mask
645 *
646 * Return value:
647 * none
648 **/
649static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
650 u32 clr_ints)
651{
652 volatile u32 int_reg;
653
654 /* Stop new interrupts */
655 ioa_cfg->allow_interrupts = 0;
656
657 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 658 if (ioa_cfg->sis64)
659 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
660 else
661 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 662
663 /* Clear any pending interrupts */
214777ba
WB		 664 if (ioa_cfg->sis64)
665 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
666 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 667 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
668}
669
670/**
671 * ipr_save_pcix_cmd_reg - Save PCI-X command register
672 * @ioa_cfg: ioa config struct
673 *
674 * Return value:
675 * 0 on success / -EIO on failure
676 **/
677static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
678{
679 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
680
7dce0e1c
BK		 681 if (pcix_cmd_reg == 0)
682 return 0;
1da177e4
LT		 683
684 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
685 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
686 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
687 return -EIO;
688 }
689
690 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
691 return 0;
692}
693
694/**
695 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
696 * @ioa_cfg: ioa config struct
697 *
698 * Return value:
699 * 0 on success / -EIO on failure
700 **/
701static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
702{
703 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
704
705 if (pcix_cmd_reg) {
706 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
707 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
708 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
709 return -EIO;
710 }
1da177e4
LT		 711 }
712
713 return 0;
714}
715
35a39691
BK		 716/**
717 * ipr_sata_eh_done - done function for aborted SATA commands
718 * @ipr_cmd: ipr command struct
719 *
720 * This function is invoked for ops generated to SATA
721 * devices which are being aborted.
722 *
723 * Return value:
724 * none
725 **/
726static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
727{
728 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
729 struct ata_queued_cmd *qc = ipr_cmd->qc;
730 struct ipr_sata_port *sata_port = qc->ap->private_data;
731
732 qc->err_mask |= AC_ERR_OTHER;
733 sata_port->ioasa.status |= ATA_BUSY;
734 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
735 ata_qc_complete(qc);
736}
737
1da177e4
LT		 738/**
739 * ipr_scsi_eh_done - mid-layer done function for aborted ops
740 * @ipr_cmd: ipr command struct
741 *
742 * This function is invoked by the interrupt handler for
743 * ops generated by the SCSI mid-layer which are being aborted.
744 *
745 * Return value:
746 * none
747 **/
748static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
749{
750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
751 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
752
753 scsi_cmd->result |= (DID_ERROR << 16);
754
63015bc9 755 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 756 scsi_cmd->scsi_done(scsi_cmd);
757 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
758}
759
760/**
761 * ipr_fail_all_ops - Fails all outstanding ops.
762 * @ioa_cfg: ioa config struct
763 *
764 * This function fails all outstanding ops.
765 *
766 * Return value:
767 * none
768 **/
769static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
770{
771 struct ipr_cmnd *ipr_cmd, *temp;
772
773 ENTER;
774 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
775 list_del(&ipr_cmd->queue);
776
96d21f00
WB		 777 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
778 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
1da177e4
LT		 779
780 if (ipr_cmd->scsi_cmd)
781 ipr_cmd->done = ipr_scsi_eh_done;
35a39691
BK		 782 else if (ipr_cmd->qc)
783 ipr_cmd->done = ipr_sata_eh_done;
1da177e4
LT		 784
785 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
786 del_timer(&ipr_cmd->timer);
787 ipr_cmd->done(ipr_cmd);
788 }
789
790 LEAVE;
791}
792
a32c055f
WB		 793/**
794 * ipr_send_command - Send driver initiated requests.
795 * @ipr_cmd: ipr command struct
796 *
797 * This function sends a command to the adapter using the correct write call.
798 * In the case of sis64, calculate the ioarcb size required. Then or in the
799 * appropriate bits.
800 *
801 * Return value:
802 * none
803 **/
804static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
805{
806 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
807 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
808
809 if (ioa_cfg->sis64) {
810 /* The default size is 256 bytes */
811 send_dma_addr |= 0x1;
812
813 /* If the number of ioadls * size of ioadl > 128 bytes,
814 then use a 512 byte ioarcb */
815 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
816 send_dma_addr |= 0x4;
817 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
818 } else
819 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
820}
821
1da177e4
LT		 822/**
823 * ipr_do_req - Send driver initiated requests.
824 * @ipr_cmd: ipr command struct
825 * @done: done function
826 * @timeout_func: timeout function
827 * @timeout: timeout value
828 *
829 * This function sends the specified command to the adapter with the
830 * timeout given. The done function is invoked on command completion.
831 *
832 * Return value:
833 * none
834 **/
835static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
836 void (*done) (struct ipr_cmnd *),
837 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
838{
839 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
840
841 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
842
843 ipr_cmd->done = done;
844
845 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
846 ipr_cmd->timer.expires = jiffies + timeout;
847 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
848
849 add_timer(&ipr_cmd->timer);
850
851 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
852
853 mb();
a32c055f
WB		 854
855 ipr_send_command(ipr_cmd);
1da177e4
LT		 856}
857
858/**
859 * ipr_internal_cmd_done - Op done function for an internally generated op.
860 * @ipr_cmd: ipr command struct
861 *
862 * This function is the op done function for an internally generated,
863 * blocking op. It simply wakes the sleeping thread.
864 *
865 * Return value:
866 * none
867 **/
868static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
869{
870 if (ipr_cmd->sibling)
871 ipr_cmd->sibling = NULL;
872 else
873 complete(&ipr_cmd->completion);
874}
875
a32c055f
WB		 876/**
877 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
878 * @ipr_cmd: ipr command struct
879 * @dma_addr: dma address
880 * @len: transfer length
881 * @flags: ioadl flag value
882 *
883 * This function initializes an ioadl in the case where there is only a single
884 * descriptor.
885 *
886 * Return value:
887 * nothing
888 **/
889static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
890 u32 len, int flags)
891{
892 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
893 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
894
895 ipr_cmd->dma_use_sg = 1;
896
897 if (ipr_cmd->ioa_cfg->sis64) {
898 ioadl64->flags = cpu_to_be32(flags);
899 ioadl64->data_len = cpu_to_be32(len);
900 ioadl64->address = cpu_to_be64(dma_addr);
901
902 ipr_cmd->ioarcb.ioadl_len =
903 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
904 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
905 } else {
906 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
907 ioadl->address = cpu_to_be32(dma_addr);
908
909 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
910 ipr_cmd->ioarcb.read_ioadl_len =
911 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
912 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
913 } else {
914 ipr_cmd->ioarcb.ioadl_len =
915 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
916 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
917 }
918 }
919}
920
1da177e4
LT		 921/**
922 * ipr_send_blocking_cmd - Send command and sleep on its completion.
923 * @ipr_cmd: ipr command struct
924 * @timeout_func: function to invoke if command times out
925 * @timeout: timeout
926 *
927 * Return value:
928 * none
929 **/
930static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
931 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
932 u32 timeout)
933{
934 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
935
936 init_completion(&ipr_cmd->completion);
937 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
938
939 spin_unlock_irq(ioa_cfg->host->host_lock);
940 wait_for_completion(&ipr_cmd->completion);
941 spin_lock_irq(ioa_cfg->host->host_lock);
942}
943
944/**
945 * ipr_send_hcam - Send an HCAM to the adapter.
946 * @ioa_cfg: ioa config struct
947 * @type: HCAM type
948 * @hostrcb: hostrcb struct
949 *
950 * This function will send a Host Controlled Async command to the adapter.
951 * If HCAMs are currently not allowed to be issued to the adapter, it will
952 * place the hostrcb on the free queue.
953 *
954 * Return value:
955 * none
956 **/
957static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
958 struct ipr_hostrcb *hostrcb)
959{
960 struct ipr_cmnd *ipr_cmd;
961 struct ipr_ioarcb *ioarcb;
962
963 if (ioa_cfg->allow_cmds) {
964 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
965 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
966 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
967
968 ipr_cmd->u.hostrcb = hostrcb;
969 ioarcb = &ipr_cmd->ioarcb;
970
971 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
972 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
973 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
974 ioarcb->cmd_pkt.cdb[1] = type;
975 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
976 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
977
a32c055f
WB		 978 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
979 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 980
981 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
982 ipr_cmd->done = ipr_process_ccn;
983 else
984 ipr_cmd->done = ipr_process_error;
985
986 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
987
988 mb();
a32c055f
WB		 989
990 ipr_send_command(ipr_cmd);
1da177e4
LT		 991 } else {
992 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
993 }
994}
995
3e7ebdfa
WB		 996/**
997 * ipr_update_ata_class - Update the ata class in the resource entry
998 * @res: resource entry struct
999 * @proto: cfgte device bus protocol value
1000 *
1001 * Return value:
1002 * none
1003 **/
1004static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1005{
1006 switch(proto) {
1007 case IPR_PROTO_SATA:
1008 case IPR_PROTO_SAS_STP:
1009 res->ata_class = ATA_DEV_ATA;
1010 break;
1011 case IPR_PROTO_SATA_ATAPI:
1012 case IPR_PROTO_SAS_STP_ATAPI:
1013 res->ata_class = ATA_DEV_ATAPI;
1014 break;
1015 default:
1016 res->ata_class = ATA_DEV_UNKNOWN;
1017 break;
1018 };
1019}
1020
1da177e4
LT		 1021/**
1022 * ipr_init_res_entry - Initialize a resource entry struct.
1023 * @res: resource entry struct
3e7ebdfa 1024 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1025 *
1026 * Return value:
1027 * none
1028 **/
3e7ebdfa
WB		 1029static void ipr_init_res_entry(struct ipr_resource_entry *res,
1030 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1031{
3e7ebdfa
WB		 1032 int found = 0;
1033 unsigned int proto;
1034 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1035 struct ipr_resource_entry *gscsi_res = NULL;
1036
ee0a90fa 1037 res->needs_sync_complete = 0;
1da177e4
LT		 1038 res->in_erp = 0;
1039 res->add_to_ml = 0;
1040 res->del_from_ml = 0;
1041 res->resetting_device = 0;
1042 res->sdev = NULL;
35a39691 1043 res->sata_port = NULL;
3e7ebdfa
WB		 1044
1045 if (ioa_cfg->sis64) {
1046 proto = cfgtew->u.cfgte64->proto;
1047 res->res_flags = cfgtew->u.cfgte64->res_flags;
1048 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1049 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1050
1051 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1052 sizeof(res->res_path));
1053
1054 res->bus = 0;
0cb992ed
WB		 1055 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1056 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1057 res->lun = scsilun_to_int(&res->dev_lun);
1058
1059 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1060 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1061 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1062 found = 1;
1063 res->target = gscsi_res->target;
1064 break;
1065 }
1066 }
1067 if (!found) {
1068 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1069 ioa_cfg->max_devs_supported);
1070 set_bit(res->target, ioa_cfg->target_ids);
1071 }
3e7ebdfa
WB		 1072 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1073 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1074 res->target = 0;
1075 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1076 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1077 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1078 ioa_cfg->max_devs_supported);
1079 set_bit(res->target, ioa_cfg->array_ids);
1080 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1081 res->bus = IPR_VSET_VIRTUAL_BUS;
1082 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1083 ioa_cfg->max_devs_supported);
1084 set_bit(res->target, ioa_cfg->vset_ids);
1085 } else {
1086 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1087 ioa_cfg->max_devs_supported);
1088 set_bit(res->target, ioa_cfg->target_ids);
1089 }
1090 } else {
1091 proto = cfgtew->u.cfgte->proto;
1092 res->qmodel = IPR_QUEUEING_MODEL(res);
1093 res->flags = cfgtew->u.cfgte->flags;
1094 if (res->flags & IPR_IS_IOA_RESOURCE)
1095 res->type = IPR_RES_TYPE_IOAFP;
1096 else
1097 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1098
1099 res->bus = cfgtew->u.cfgte->res_addr.bus;
1100 res->target = cfgtew->u.cfgte->res_addr.target;
1101 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1102 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1103 }
1104
1105 ipr_update_ata_class(res, proto);
1106}
1107
1108/**
1109 * ipr_is_same_device - Determine if two devices are the same.
1110 * @res: resource entry struct
1111 * @cfgtew: config table entry wrapper struct
1112 *
1113 * Return value:
1114 * 1 if the devices are the same / 0 otherwise
1115 **/
1116static int ipr_is_same_device(struct ipr_resource_entry *res,
1117 struct ipr_config_table_entry_wrapper *cfgtew)
1118{
1119 if (res->ioa_cfg->sis64) {
1120 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1121 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1122 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1123 sizeof(cfgtew->u.cfgte64->lun))) {
1124 return 1;
1125 }
1126 } else {
1127 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1128 res->target == cfgtew->u.cfgte->res_addr.target &&
1129 res->lun == cfgtew->u.cfgte->res_addr.lun)
1130 return 1;
1131 }
1132
1133 return 0;
1134}
1135
1136/**
5adcbeb3 1137 * ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1138 * @res_path: resource path
1139 * @buf: buffer
1140 *
1141 * Return value:
1142 * pointer to buffer
1143 **/
5adcbeb3 1144static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1145{
1146 int i;
5adcbeb3 1147 char *p = buffer;
3e7ebdfa 1148
46d74563 1149 *p = '\0';
5adcbeb3
WB		 1150 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1151 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1152 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1153
1154 return buffer;
1155}
1156
1157/**
1158 * ipr_update_res_entry - Update the resource entry.
1159 * @res: resource entry struct
1160 * @cfgtew: config table entry wrapper struct
1161 *
1162 * Return value:
1163 * none
1164 **/
1165static void ipr_update_res_entry(struct ipr_resource_entry *res,
1166 struct ipr_config_table_entry_wrapper *cfgtew)
1167{
1168 char buffer[IPR_MAX_RES_PATH_LENGTH];
1169 unsigned int proto;
1170 int new_path = 0;
1171
1172 if (res->ioa_cfg->sis64) {
1173 res->flags = cfgtew->u.cfgte64->flags;
1174 res->res_flags = cfgtew->u.cfgte64->res_flags;
75576bb9 1175 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1176
1177 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1178 sizeof(struct ipr_std_inq_data));
1179
1180 res->qmodel = IPR_QUEUEING_MODEL64(res);
1181 proto = cfgtew->u.cfgte64->proto;
1182 res->res_handle = cfgtew->u.cfgte64->res_handle;
1183 res->dev_id = cfgtew->u.cfgte64->dev_id;
1184
1185 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1186 sizeof(res->dev_lun.scsi_lun));
1187
1188 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1189 sizeof(res->res_path))) {
1190 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1191 sizeof(res->res_path));
1192 new_path = 1;
1193 }
1194
1195 if (res->sdev && new_path)
1196 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
5adcbeb3
WB		 1197 ipr_format_res_path(res->res_path, buffer,
1198 sizeof(buffer)));
3e7ebdfa
WB		 1199 } else {
1200 res->flags = cfgtew->u.cfgte->flags;
1201 if (res->flags & IPR_IS_IOA_RESOURCE)
1202 res->type = IPR_RES_TYPE_IOAFP;
1203 else
1204 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1205
1206 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1207 sizeof(struct ipr_std_inq_data));
1208
1209 res->qmodel = IPR_QUEUEING_MODEL(res);
1210 proto = cfgtew->u.cfgte->proto;
1211 res->res_handle = cfgtew->u.cfgte->res_handle;
1212 }
1213
1214 ipr_update_ata_class(res, proto);
1215}
1216
1217/**
1218 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1219 * for the resource.
1220 * @res: resource entry struct
1221 * @cfgtew: config table entry wrapper struct
1222 *
1223 * Return value:
1224 * none
1225 **/
1226static void ipr_clear_res_target(struct ipr_resource_entry *res)
1227{
1228 struct ipr_resource_entry *gscsi_res = NULL;
1229 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1230
1231 if (!ioa_cfg->sis64)
1232 return;
1233
1234 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1235 clear_bit(res->target, ioa_cfg->array_ids);
1236 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1237 clear_bit(res->target, ioa_cfg->vset_ids);
1238 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1239 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1240 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1241 return;
1242 clear_bit(res->target, ioa_cfg->target_ids);
1243
1244 } else if (res->bus == 0)
1245 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1246}
1247
1248/**
1249 * ipr_handle_config_change - Handle a config change from the adapter
1250 * @ioa_cfg: ioa config struct
1251 * @hostrcb: hostrcb
1252 *
1253 * Return value:
1254 * none
1255 **/
1256static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1257 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1258{
1259 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1260 struct ipr_config_table_entry_wrapper cfgtew;
1261 __be32 cc_res_handle;
1262
1da177e4
LT		 1263 u32 is_ndn = 1;
1264
3e7ebdfa
WB		 1265 if (ioa_cfg->sis64) {
1266 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1267 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1268 } else {
1269 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1270 cc_res_handle = cfgtew.u.cfgte->res_handle;
1271 }
1da177e4
LT		 1272
1273 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1274 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1275 is_ndn = 0;
1276 break;
1277 }
1278 }
1279
1280 if (is_ndn) {
1281 if (list_empty(&ioa_cfg->free_res_q)) {
1282 ipr_send_hcam(ioa_cfg,
1283 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1284 hostrcb);
1285 return;
1286 }
1287
1288 res = list_entry(ioa_cfg->free_res_q.next,
1289 struct ipr_resource_entry, queue);
1290
1291 list_del(&res->queue);
3e7ebdfa 1292 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1293 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1294 }
1295
3e7ebdfa 1296 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1297
1298 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1299 if (res->sdev) {
1da177e4 1300 res->del_from_ml = 1;
3e7ebdfa 1301 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 1302 if (ioa_cfg->allow_ml_add_del)
1303 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1304 } else {
1305 ipr_clear_res_target(res);
1da177e4 1306 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1307 }
5767a1c4 1308 } else if (!res->sdev || res->del_from_ml) {
1da177e4
LT		 1309 res->add_to_ml = 1;
1310 if (ioa_cfg->allow_ml_add_del)
1311 schedule_work(&ioa_cfg->work_q);
1312 }
1313
1314 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1315}
1316
1317/**
1318 * ipr_process_ccn - Op done function for a CCN.
1319 * @ipr_cmd: ipr command struct
1320 *
1321 * This function is the op done function for a configuration
1322 * change notification host controlled async from the adapter.
1323 *
1324 * Return value:
1325 * none
1326 **/
1327static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1328{
1329 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1330 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1331 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1332
1333 list_del(&hostrcb->queue);
1334 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1335
1336 if (ioasc) {
1337 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1338 dev_err(&ioa_cfg->pdev->dev,
1339 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1340
1341 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1342 } else {
1343 ipr_handle_config_change(ioa_cfg, hostrcb);
1344 }
1345}
1346
8cf093e2
BK		 1347/**
1348 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1349 * @i: index into buffer
1350 * @buf: string to modify
1351 *
1352 * This function will strip all trailing whitespace, pad the end
1353 * of the string with a single space, and NULL terminate the string.
1354 *
1355 * Return value:
1356 * new length of string
1357 **/
1358static int strip_and_pad_whitespace(int i, char *buf)
1359{
1360 while (i && buf[i] == ' ')
1361 i--;
1362 buf[i+1] = ' ';
1363 buf[i+2] = '\0';
1364 return i + 2;
1365}
1366
1367/**
1368 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1369 * @prefix: string to print at start of printk
1370 * @hostrcb: hostrcb pointer
1371 * @vpd: vendor/product id/sn struct
1372 *
1373 * Return value:
1374 * none
1375 **/
1376static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1377 struct ipr_vpd *vpd)
1378{
1379 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1380 int i = 0;
1381
1382 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1383 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1384
1385 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1386 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1387
1388 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1389 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1390
1391 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1392}
1393
1da177e4
LT		 1394/**
1395 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1396 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1397 *
1398 * Return value:
1399 * none
1400 **/
cfc32139 1401static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1402{
1403 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1404 + IPR_SERIAL_NUM_LEN];
1405
cfc32139
BK		 1406 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1407 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1408 IPR_PROD_ID_LEN);
1409 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1410 ipr_err("Vendor/Product ID: %s\n", buffer);
1411
cfc32139 1412 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1413 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1414 ipr_err(" Serial Number: %s\n", buffer);
1415}
1416
8cf093e2
BK		 1417/**
1418 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1419 * @prefix: string to print at start of printk
1420 * @hostrcb: hostrcb pointer
1421 * @vpd: vendor/product id/sn/wwn struct
1422 *
1423 * Return value:
1424 * none
1425 **/
1426static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1427 struct ipr_ext_vpd *vpd)
1428{
1429 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1430 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1431 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1432}
1433
ee0f05b8
BK		 1434/**
1435 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1436 * @vpd: vendor/product id/sn/wwn struct
1437 *
1438 * Return value:
1439 * none
1440 **/
1441static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1442{
1443 ipr_log_vpd(&vpd->vpd);
1444 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1445 be32_to_cpu(vpd->wwid[1]));
1446}
1447
1448/**
1449 * ipr_log_enhanced_cache_error - Log a cache error.
1450 * @ioa_cfg: ioa config struct
1451 * @hostrcb: hostrcb struct
1452 *
1453 * Return value:
1454 * none
1455 **/
1456static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1457 struct ipr_hostrcb *hostrcb)
1458{
4565e370
WB		 1459 struct ipr_hostrcb_type_12_error *error;
1460
1461 if (ioa_cfg->sis64)
1462 error = &hostrcb->hcam.u.error64.u.type_12_error;
1463 else
1464 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1465
1466 ipr_err("-----Current Configuration-----\n");
1467 ipr_err("Cache Directory Card Information:\n");
1468 ipr_log_ext_vpd(&error->ioa_vpd);
1469 ipr_err("Adapter Card Information:\n");
1470 ipr_log_ext_vpd(&error->cfc_vpd);
1471
1472 ipr_err("-----Expected Configuration-----\n");
1473 ipr_err("Cache Directory Card Information:\n");
1474 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1475 ipr_err("Adapter Card Information:\n");
1476 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1477
1478 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1479 be32_to_cpu(error->ioa_data[0]),
1480 be32_to_cpu(error->ioa_data[1]),
1481 be32_to_cpu(error->ioa_data[2]));
1482}
1483
1da177e4
LT		 1484/**
1485 * ipr_log_cache_error - Log a cache error.
1486 * @ioa_cfg: ioa config struct
1487 * @hostrcb: hostrcb struct
1488 *
1489 * Return value:
1490 * none
1491 **/
1492static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1493 struct ipr_hostrcb *hostrcb)
1494{
1495 struct ipr_hostrcb_type_02_error *error =
1496 &hostrcb->hcam.u.error.u.type_02_error;
1497
1498 ipr_err("-----Current Configuration-----\n");
1499 ipr_err("Cache Directory Card Information:\n");
cfc32139 1500 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1501 ipr_err("Adapter Card Information:\n");
cfc32139 1502 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1503
1504 ipr_err("-----Expected Configuration-----\n");
1505 ipr_err("Cache Directory Card Information:\n");
cfc32139 1506 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1507 ipr_err("Adapter Card Information:\n");
cfc32139 1508 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1509
1510 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1511 be32_to_cpu(error->ioa_data[0]),
1512 be32_to_cpu(error->ioa_data[1]),
1513 be32_to_cpu(error->ioa_data[2]));
1514}
1515
ee0f05b8
BK		 1516/**
1517 * ipr_log_enhanced_config_error - Log a configuration error.
1518 * @ioa_cfg: ioa config struct
1519 * @hostrcb: hostrcb struct
1520 *
1521 * Return value:
1522 * none
1523 **/
1524static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1525 struct ipr_hostrcb *hostrcb)
1526{
1527 int errors_logged, i;
1528 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1529 struct ipr_hostrcb_type_13_error *error;
1530
1531 error = &hostrcb->hcam.u.error.u.type_13_error;
1532 errors_logged = be32_to_cpu(error->errors_logged);
1533
1534 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1535 be32_to_cpu(error->errors_detected), errors_logged);
1536
1537 dev_entry = error->dev;
1538
1539 for (i = 0; i < errors_logged; i++, dev_entry++) {
1540 ipr_err_separator;
1541
1542 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1543 ipr_log_ext_vpd(&dev_entry->vpd);
1544
1545 ipr_err("-----New Device Information-----\n");
1546 ipr_log_ext_vpd(&dev_entry->new_vpd);
1547
1548 ipr_err("Cache Directory Card Information:\n");
1549 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1550
1551 ipr_err("Adapter Card Information:\n");
1552 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1553 }
1554}
1555
4565e370
WB		 1556/**
1557 * ipr_log_sis64_config_error - Log a device error.
1558 * @ioa_cfg: ioa config struct
1559 * @hostrcb: hostrcb struct
1560 *
1561 * Return value:
1562 * none
1563 **/
1564static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1565 struct ipr_hostrcb *hostrcb)
1566{
1567 int errors_logged, i;
1568 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1569 struct ipr_hostrcb_type_23_error *error;
1570 char buffer[IPR_MAX_RES_PATH_LENGTH];
1571
1572 error = &hostrcb->hcam.u.error64.u.type_23_error;
1573 errors_logged = be32_to_cpu(error->errors_logged);
1574
1575 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1576 be32_to_cpu(error->errors_detected), errors_logged);
1577
1578 dev_entry = error->dev;
1579
1580 for (i = 0; i < errors_logged; i++, dev_entry++) {
1581 ipr_err_separator;
1582
1583 ipr_err("Device %d : %s", i + 1,
5adcbeb3
WB		 1584 ipr_format_res_path(dev_entry->res_path, buffer,
1585 sizeof(buffer)));
4565e370
WB		 1586 ipr_log_ext_vpd(&dev_entry->vpd);
1587
1588 ipr_err("-----New Device Information-----\n");
1589 ipr_log_ext_vpd(&dev_entry->new_vpd);
1590
1591 ipr_err("Cache Directory Card Information:\n");
1592 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1593
1594 ipr_err("Adapter Card Information:\n");
1595 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1596 }
1597}
1598
1da177e4
LT		 1599/**
1600 * ipr_log_config_error - Log a configuration error.
1601 * @ioa_cfg: ioa config struct
1602 * @hostrcb: hostrcb struct
1603 *
1604 * Return value:
1605 * none
1606 **/
1607static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1608 struct ipr_hostrcb *hostrcb)
1609{
1610 int errors_logged, i;
1611 struct ipr_hostrcb_device_data_entry *dev_entry;
1612 struct ipr_hostrcb_type_03_error *error;
1613
1614 error = &hostrcb->hcam.u.error.u.type_03_error;
1615 errors_logged = be32_to_cpu(error->errors_logged);
1616
1617 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1618 be32_to_cpu(error->errors_detected), errors_logged);
1619
cfc32139 1620 dev_entry = error->dev;
1da177e4
LT		 1621
1622 for (i = 0; i < errors_logged; i++, dev_entry++) {
1623 ipr_err_separator;
1624
fa15b1f6 1625 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1626 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1627
1628 ipr_err("-----New Device Information-----\n");
cfc32139 1629 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1630
1631 ipr_err("Cache Directory Card Information:\n");
cfc32139 1632 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1633
1634 ipr_err("Adapter Card Information:\n");
cfc32139 1635 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1636
1637 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1638 be32_to_cpu(dev_entry->ioa_data[0]),
1639 be32_to_cpu(dev_entry->ioa_data[1]),
1640 be32_to_cpu(dev_entry->ioa_data[2]),
1641 be32_to_cpu(dev_entry->ioa_data[3]),
1642 be32_to_cpu(dev_entry->ioa_data[4]));
1643 }
1644}
1645
ee0f05b8
BK		 1646/**
1647 * ipr_log_enhanced_array_error - Log an array configuration error.
1648 * @ioa_cfg: ioa config struct
1649 * @hostrcb: hostrcb struct
1650 *
1651 * Return value:
1652 * none
1653 **/
1654static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1655 struct ipr_hostrcb *hostrcb)
1656{
1657 int i, num_entries;
1658 struct ipr_hostrcb_type_14_error *error;
1659 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1660 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1661
1662 error = &hostrcb->hcam.u.error.u.type_14_error;
1663
1664 ipr_err_separator;
1665
1666 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1667 error->protection_level,
1668 ioa_cfg->host->host_no,
1669 error->last_func_vset_res_addr.bus,
1670 error->last_func_vset_res_addr.target,
1671 error->last_func_vset_res_addr.lun);
1672
1673 ipr_err_separator;
1674
1675 array_entry = error->array_member;
1676 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1677 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1678
1679 for (i = 0; i < num_entries; i++, array_entry++) {
1680 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1681 continue;
1682
1683 if (be32_to_cpu(error->exposed_mode_adn) == i)
1684 ipr_err("Exposed Array Member %d:\n", i);
1685 else
1686 ipr_err("Array Member %d:\n", i);
1687
1688 ipr_log_ext_vpd(&array_entry->vpd);
1689 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1690 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1691 "Expected Location");
1692
1693 ipr_err_separator;
1694 }
1695}
1696
1da177e4
LT		 1697/**
1698 * ipr_log_array_error - Log an array configuration error.
1699 * @ioa_cfg: ioa config struct
1700 * @hostrcb: hostrcb struct
1701 *
1702 * Return value:
1703 * none
1704 **/
1705static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1706 struct ipr_hostrcb *hostrcb)
1707{
1708 int i;
1709 struct ipr_hostrcb_type_04_error *error;
1710 struct ipr_hostrcb_array_data_entry *array_entry;
1711 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1712
1713 error = &hostrcb->hcam.u.error.u.type_04_error;
1714
1715 ipr_err_separator;
1716
1717 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1718 error->protection_level,
1719 ioa_cfg->host->host_no,
1720 error->last_func_vset_res_addr.bus,
1721 error->last_func_vset_res_addr.target,
1722 error->last_func_vset_res_addr.lun);
1723
1724 ipr_err_separator;
1725
1726 array_entry = error->array_member;
1727
1728 for (i = 0; i < 18; i++) {
cfc32139 1729 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1730 continue;
1731
fa15b1f6 1732 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1733 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1734 else
1da177e4 1735 ipr_err("Array Member %d:\n", i);
1da177e4 1736
cfc32139 1737 ipr_log_vpd(&array_entry->vpd);
1da177e4 1738
fa15b1f6
BK		 1739 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1740 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1741 "Expected Location");
1da177e4
LT		 1742
1743 ipr_err_separator;
1744
1745 if (i == 9)
1746 array_entry = error->array_member2;
1747 else
1748 array_entry++;
1749 }
1750}
1751
1752/**
b0df54bb 1753 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1754 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1755 * @data: IOA error data
1756 * @len: data length
1da177e4
LT		 1757 *
1758 * Return value:
1759 * none
1760 **/
ac719aba 1761static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1762{
1763 int i;
1da177e4 1764
b0df54bb 1765 if (len == 0)
1da177e4
LT		 1766 return;
1767
ac719aba
BK		 1768 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1769 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1770
b0df54bb 1771 for (i = 0; i < len / 4; i += 4) {
1da177e4 1772 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1773 be32_to_cpu(data[i]),
1774 be32_to_cpu(data[i+1]),
1775 be32_to_cpu(data[i+2]),
1776 be32_to_cpu(data[i+3]));
1da177e4
LT		 1777 }
1778}
1779
ee0f05b8
BK		 1780/**
1781 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1782 * @ioa_cfg: ioa config struct
1783 * @hostrcb: hostrcb struct
1784 *
1785 * Return value:
1786 * none
1787 **/
1788static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1789 struct ipr_hostrcb *hostrcb)
1790{
1791 struct ipr_hostrcb_type_17_error *error;
1792
4565e370
WB		 1793 if (ioa_cfg->sis64)
1794 error = &hostrcb->hcam.u.error64.u.type_17_error;
1795 else
1796 error = &hostrcb->hcam.u.error.u.type_17_error;
1797
ee0f05b8 1798 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1799 strim(error->failure_reason);
ee0f05b8 1800
8cf093e2
BK		 1801 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1802 be32_to_cpu(hostrcb->hcam.u.error.prc));
1803 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1804 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1805 be32_to_cpu(hostrcb->hcam.length) -
1806 (offsetof(struct ipr_hostrcb_error, u) +
1807 offsetof(struct ipr_hostrcb_type_17_error, data)));
1808}
1809
b0df54bb
BK		 1810/**
1811 * ipr_log_dual_ioa_error - Log a dual adapter error.
1812 * @ioa_cfg: ioa config struct
1813 * @hostrcb: hostrcb struct
1814 *
1815 * Return value:
1816 * none
1817 **/
1818static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1819 struct ipr_hostrcb *hostrcb)
1820{
1821 struct ipr_hostrcb_type_07_error *error;
1822
1823 error = &hostrcb->hcam.u.error.u.type_07_error;
1824 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1825 strim(error->failure_reason);
b0df54bb 1826
8cf093e2
BK		 1827 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1828 be32_to_cpu(hostrcb->hcam.u.error.prc));
1829 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1830 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1831 be32_to_cpu(hostrcb->hcam.length) -
1832 (offsetof(struct ipr_hostrcb_error, u) +
1833 offsetof(struct ipr_hostrcb_type_07_error, data)));
1834}
1835
49dc6a18
BK		 1836static const struct {
1837 u8 active;
1838 char *desc;
1839} path_active_desc[] = {
1840 { IPR_PATH_NO_INFO, "Path" },
1841 { IPR_PATH_ACTIVE, "Active path" },
1842 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1843};
1844
1845static const struct {
1846 u8 state;
1847 char *desc;
1848} path_state_desc[] = {
1849 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1850 { IPR_PATH_HEALTHY, "is healthy" },
1851 { IPR_PATH_DEGRADED, "is degraded" },
1852 { IPR_PATH_FAILED, "is failed" }
1853};
1854
1855/**
1856 * ipr_log_fabric_path - Log a fabric path error
1857 * @hostrcb: hostrcb struct
1858 * @fabric: fabric descriptor
1859 *
1860 * Return value:
1861 * none
1862 **/
1863static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1864 struct ipr_hostrcb_fabric_desc *fabric)
1865{
1866 int i, j;
1867 u8 path_state = fabric->path_state;
1868 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1869 u8 state = path_state & IPR_PATH_STATE_MASK;
1870
1871 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1872 if (path_active_desc[i].active != active)
1873 continue;
1874
1875 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1876 if (path_state_desc[j].state != state)
1877 continue;
1878
1879 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1881 path_active_desc[i].desc, path_state_desc[j].desc,
1882 fabric->ioa_port);
1883 } else if (fabric->cascaded_expander == 0xff) {
1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1885 path_active_desc[i].desc, path_state_desc[j].desc,
1886 fabric->ioa_port, fabric->phy);
1887 } else if (fabric->phy == 0xff) {
1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1889 path_active_desc[i].desc, path_state_desc[j].desc,
1890 fabric->ioa_port, fabric->cascaded_expander);
1891 } else {
1892 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1893 path_active_desc[i].desc, path_state_desc[j].desc,
1894 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1895 }
1896 return;
1897 }
1898 }
1899
1900 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1901 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1902}
1903
4565e370
WB		 1904/**
1905 * ipr_log64_fabric_path - Log a fabric path error
1906 * @hostrcb: hostrcb struct
1907 * @fabric: fabric descriptor
1908 *
1909 * Return value:
1910 * none
1911 **/
1912static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1913 struct ipr_hostrcb64_fabric_desc *fabric)
1914{
1915 int i, j;
1916 u8 path_state = fabric->path_state;
1917 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1918 u8 state = path_state & IPR_PATH_STATE_MASK;
1919 char buffer[IPR_MAX_RES_PATH_LENGTH];
1920
1921 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1922 if (path_active_desc[i].active != active)
1923 continue;
1924
1925 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1926 if (path_state_desc[j].state != state)
1927 continue;
1928
1929 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1930 path_active_desc[i].desc, path_state_desc[j].desc,
5adcbeb3
WB		 1931 ipr_format_res_path(fabric->res_path, buffer,
1932 sizeof(buffer)));
4565e370
WB		 1933 return;
1934 }
1935 }
1936
1937 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
5adcbeb3 1938 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
4565e370
WB		 1939}
1940
49dc6a18
BK		 1941static const struct {
1942 u8 type;
1943 char *desc;
1944} path_type_desc[] = {
1945 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1946 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1947 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1948 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1949};
1950
1951static const struct {
1952 u8 status;
1953 char *desc;
1954} path_status_desc[] = {
1955 { IPR_PATH_CFG_NO_PROB, "Functional" },
1956 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1957 { IPR_PATH_CFG_FAILED, "Failed" },
1958 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1959 { IPR_PATH_NOT_DETECTED, "Missing" },
1960 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1961};
1962
1963static const char *link_rate[] = {
1964 "unknown",
1965 "disabled",
1966 "phy reset problem",
1967 "spinup hold",
1968 "port selector",
1969 "unknown",
1970 "unknown",
1971 "unknown",
1972 "1.5Gbps",
1973 "3.0Gbps",
1974 "unknown",
1975 "unknown",
1976 "unknown",
1977 "unknown",
1978 "unknown",
1979 "unknown"
1980};
1981
1982/**
1983 * ipr_log_path_elem - Log a fabric path element.
1984 * @hostrcb: hostrcb struct
1985 * @cfg: fabric path element struct
1986 *
1987 * Return value:
1988 * none
1989 **/
1990static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1991 struct ipr_hostrcb_config_element *cfg)
1992{
1993 int i, j;
1994 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1995 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1996
1997 if (type == IPR_PATH_CFG_NOT_EXIST)
1998 return;
1999
2000 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2001 if (path_type_desc[i].type != type)
2002 continue;
2003
2004 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2005 if (path_status_desc[j].status != status)
2006 continue;
2007
2008 if (type == IPR_PATH_CFG_IOA_PORT) {
2009 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2010 path_status_desc[j].desc, path_type_desc[i].desc,
2011 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2012 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2013 } else {
2014 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2015 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2016 path_status_desc[j].desc, path_type_desc[i].desc,
2017 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2018 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2019 } else if (cfg->cascaded_expander == 0xff) {
2020 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2021 "WWN=%08X%08X\n", path_status_desc[j].desc,
2022 path_type_desc[i].desc, cfg->phy,
2023 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2024 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2025 } else if (cfg->phy == 0xff) {
2026 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2027 "WWN=%08X%08X\n", path_status_desc[j].desc,
2028 path_type_desc[i].desc, cfg->cascaded_expander,
2029 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2030 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2031 } else {
2032 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2033 "WWN=%08X%08X\n", path_status_desc[j].desc,
2034 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2035 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2036 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2037 }
2038 }
2039 return;
2040 }
2041 }
2042
2043 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2044 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2045 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2046 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2047}
2048
4565e370
WB		 2049/**
2050 * ipr_log64_path_elem - Log a fabric path element.
2051 * @hostrcb: hostrcb struct
2052 * @cfg: fabric path element struct
2053 *
2054 * Return value:
2055 * none
2056 **/
2057static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2058 struct ipr_hostrcb64_config_element *cfg)
2059{
2060 int i, j;
2061 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2062 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2063 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2064 char buffer[IPR_MAX_RES_PATH_LENGTH];
2065
2066 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2067 return;
2068
2069 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2070 if (path_type_desc[i].type != type)
2071 continue;
2072
2073 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2074 if (path_status_desc[j].status != status)
2075 continue;
2076
2077 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2078 path_status_desc[j].desc, path_type_desc[i].desc,
5adcbeb3
WB		 2079 ipr_format_res_path(cfg->res_path, buffer,
2080 sizeof(buffer)),
4565e370
WB		 2081 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2082 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2083 return;
2084 }
2085 }
2086 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2087 "WWN=%08X%08X\n", cfg->type_status,
5adcbeb3 2088 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
4565e370
WB		 2089 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2090 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2091}
2092
49dc6a18
BK		 2093/**
2094 * ipr_log_fabric_error - Log a fabric error.
2095 * @ioa_cfg: ioa config struct
2096 * @hostrcb: hostrcb struct
2097 *
2098 * Return value:
2099 * none
2100 **/
2101static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2102 struct ipr_hostrcb *hostrcb)
2103{
2104 struct ipr_hostrcb_type_20_error *error;
2105 struct ipr_hostrcb_fabric_desc *fabric;
2106 struct ipr_hostrcb_config_element *cfg;
2107 int i, add_len;
2108
2109 error = &hostrcb->hcam.u.error.u.type_20_error;
2110 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2111 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2112
2113 add_len = be32_to_cpu(hostrcb->hcam.length) -
2114 (offsetof(struct ipr_hostrcb_error, u) +
2115 offsetof(struct ipr_hostrcb_type_20_error, desc));
2116
2117 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2118 ipr_log_fabric_path(hostrcb, fabric);
2119 for_each_fabric_cfg(fabric, cfg)
2120 ipr_log_path_elem(hostrcb, cfg);
2121
2122 add_len -= be16_to_cpu(fabric->length);
2123 fabric = (struct ipr_hostrcb_fabric_desc *)
2124 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2125 }
2126
ac719aba 2127 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2128}
2129
4565e370
WB		 2130/**
2131 * ipr_log_sis64_array_error - Log a sis64 array error.
2132 * @ioa_cfg: ioa config struct
2133 * @hostrcb: hostrcb struct
2134 *
2135 * Return value:
2136 * none
2137 **/
2138static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2139 struct ipr_hostrcb *hostrcb)
2140{
2141 int i, num_entries;
2142 struct ipr_hostrcb_type_24_error *error;
2143 struct ipr_hostrcb64_array_data_entry *array_entry;
2144 char buffer[IPR_MAX_RES_PATH_LENGTH];
2145 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2146
2147 error = &hostrcb->hcam.u.error64.u.type_24_error;
2148
2149 ipr_err_separator;
2150
2151 ipr_err("RAID %s Array Configuration: %s\n",
2152 error->protection_level,
5adcbeb3 2153 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
4565e370
WB		 2154
2155 ipr_err_separator;
2156
2157 array_entry = error->array_member;
7262026f
WB		 2158 num_entries = min_t(u32, error->num_entries,
2159 ARRAY_SIZE(error->array_member));
4565e370
WB		 2160
2161 for (i = 0; i < num_entries; i++, array_entry++) {
2162
2163 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2164 continue;
2165
2166 if (error->exposed_mode_adn == i)
2167 ipr_err("Exposed Array Member %d:\n", i);
2168 else
2169 ipr_err("Array Member %d:\n", i);
2170
2171 ipr_err("Array Member %d:\n", i);
2172 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2173 ipr_err("Current Location: %s\n",
5adcbeb3
WB		 2174 ipr_format_res_path(array_entry->res_path, buffer,
2175 sizeof(buffer)));
7262026f 2176 ipr_err("Expected Location: %s\n",
5adcbeb3
WB		 2177 ipr_format_res_path(array_entry->expected_res_path,
2178 buffer, sizeof(buffer)));
4565e370
WB		 2179
2180 ipr_err_separator;
2181 }
2182}
2183
2184/**
2185 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2186 * @ioa_cfg: ioa config struct
2187 * @hostrcb: hostrcb struct
2188 *
2189 * Return value:
2190 * none
2191 **/
2192static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2193 struct ipr_hostrcb *hostrcb)
2194{
2195 struct ipr_hostrcb_type_30_error *error;
2196 struct ipr_hostrcb64_fabric_desc *fabric;
2197 struct ipr_hostrcb64_config_element *cfg;
2198 int i, add_len;
2199
2200 error = &hostrcb->hcam.u.error64.u.type_30_error;
2201
2202 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2203 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2204
2205 add_len = be32_to_cpu(hostrcb->hcam.length) -
2206 (offsetof(struct ipr_hostrcb64_error, u) +
2207 offsetof(struct ipr_hostrcb_type_30_error, desc));
2208
2209 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2210 ipr_log64_fabric_path(hostrcb, fabric);
2211 for_each_fabric_cfg(fabric, cfg)
2212 ipr_log64_path_elem(hostrcb, cfg);
2213
2214 add_len -= be16_to_cpu(fabric->length);
2215 fabric = (struct ipr_hostrcb64_fabric_desc *)
2216 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2217 }
2218
2219 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2220}
2221
b0df54bb
BK		 2222/**
2223 * ipr_log_generic_error - Log an adapter error.
2224 * @ioa_cfg: ioa config struct
2225 * @hostrcb: hostrcb struct
2226 *
2227 * Return value:
2228 * none
2229 **/
2230static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2231 struct ipr_hostrcb *hostrcb)
2232{
ac719aba 2233 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2234 be32_to_cpu(hostrcb->hcam.length));
2235}
2236
1da177e4
LT		 2237/**
2238 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2239 * @ioasc: IOASC
2240 *
2241 * This function will return the index of into the ipr_error_table
2242 * for the specified IOASC. If the IOASC is not in the table,
2243 * 0 will be returned, which points to the entry used for unknown errors.
2244 *
2245 * Return value:
2246 * index into the ipr_error_table
2247 **/
2248static u32 ipr_get_error(u32 ioasc)
2249{
2250 int i;
2251
2252 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2253 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2254 return i;
2255
2256 return 0;
2257}
2258
2259/**
2260 * ipr_handle_log_data - Log an adapter error.
2261 * @ioa_cfg: ioa config struct
2262 * @hostrcb: hostrcb struct
2263 *
2264 * This function logs an adapter error to the system.
2265 *
2266 * Return value:
2267 * none
2268 **/
2269static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2270 struct ipr_hostrcb *hostrcb)
2271{
2272 u32 ioasc;
2273 int error_index;
2274
2275 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2276 return;
2277
2278 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2279 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2280
4565e370
WB		 2281 if (ioa_cfg->sis64)
2282 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2283 else
2284 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2285
4565e370
WB		 2286 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2287 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2288 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2289 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2290 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2291 }
2292
2293 error_index = ipr_get_error(ioasc);
2294
2295 if (!ipr_error_table[error_index].log_hcam)
2296 return;
2297
49dc6a18 2298 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2299
2300 /* Set indication we have logged an error */
2301 ioa_cfg->errors_logged++;
2302
933916f3 2303 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2304 return;
cf852037
BK		 2305 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2306 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2307
2308 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2309 case IPR_HOST_RCB_OVERLAY_ID_2:
2310 ipr_log_cache_error(ioa_cfg, hostrcb);
2311 break;
2312 case IPR_HOST_RCB_OVERLAY_ID_3:
2313 ipr_log_config_error(ioa_cfg, hostrcb);
2314 break;
2315 case IPR_HOST_RCB_OVERLAY_ID_4:
2316 case IPR_HOST_RCB_OVERLAY_ID_6:
2317 ipr_log_array_error(ioa_cfg, hostrcb);
2318 break;
b0df54bb
BK		 2319 case IPR_HOST_RCB_OVERLAY_ID_7:
2320 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2321 break;
ee0f05b8
BK		 2322 case IPR_HOST_RCB_OVERLAY_ID_12:
2323 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2324 break;
2325 case IPR_HOST_RCB_OVERLAY_ID_13:
2326 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2327 break;
2328 case IPR_HOST_RCB_OVERLAY_ID_14:
2329 case IPR_HOST_RCB_OVERLAY_ID_16:
2330 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2331 break;
2332 case IPR_HOST_RCB_OVERLAY_ID_17:
2333 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2334 break;
49dc6a18
BK		 2335 case IPR_HOST_RCB_OVERLAY_ID_20:
2336 ipr_log_fabric_error(ioa_cfg, hostrcb);
2337 break;
4565e370
WB		 2338 case IPR_HOST_RCB_OVERLAY_ID_23:
2339 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2340 break;
2341 case IPR_HOST_RCB_OVERLAY_ID_24:
2342 case IPR_HOST_RCB_OVERLAY_ID_26:
2343 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2344 break;
2345 case IPR_HOST_RCB_OVERLAY_ID_30:
2346 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2347 break;
cf852037 2348 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2349 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2350 default:
a9cfca96 2351 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2352 break;
2353 }
2354}
2355
2356/**
2357 * ipr_process_error - Op done function for an adapter error log.
2358 * @ipr_cmd: ipr command struct
2359 *
2360 * This function is the op done function for an error log host
2361 * controlled async from the adapter. It will log the error and
2362 * send the HCAM back to the adapter.
2363 *
2364 * Return value:
2365 * none
2366 **/
2367static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2368{
2369 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2370 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2371 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2372 u32 fd_ioasc;
2373
2374 if (ioa_cfg->sis64)
2375 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2376 else
2377 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2378
2379 list_del(&hostrcb->queue);
2380 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2381
2382 if (!ioasc) {
2383 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2384 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2385 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2386 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2387 dev_err(&ioa_cfg->pdev->dev,
2388 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2389 }
2390
2391 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2392}
2393
2394/**
2395 * ipr_timeout - An internally generated op has timed out.
2396 * @ipr_cmd: ipr command struct
2397 *
2398 * This function blocks host requests and initiates an
2399 * adapter reset.
2400 *
2401 * Return value:
2402 * none
2403 **/
2404static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2405{
2406 unsigned long lock_flags = 0;
2407 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2408
2409 ENTER;
2410 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2411
2412 ioa_cfg->errors_logged++;
2413 dev_err(&ioa_cfg->pdev->dev,
2414 "Adapter being reset due to command timeout.\n");
2415
2416 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2417 ioa_cfg->sdt_state = GET_DUMP;
2418
2419 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2420 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2421
2422 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2423 LEAVE;
2424}
2425
2426/**
2427 * ipr_oper_timeout - Adapter timed out transitioning to operational
2428 * @ipr_cmd: ipr command struct
2429 *
2430 * This function blocks host requests and initiates an
2431 * adapter reset.
2432 *
2433 * Return value:
2434 * none
2435 **/
2436static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2437{
2438 unsigned long lock_flags = 0;
2439 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2440
2441 ENTER;
2442 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2443
2444 ioa_cfg->errors_logged++;
2445 dev_err(&ioa_cfg->pdev->dev,
2446 "Adapter timed out transitioning to operational.\n");
2447
2448 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2449 ioa_cfg->sdt_state = GET_DUMP;
2450
2451 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2452 if (ipr_fastfail)
2453 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2454 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2455 }
2456
2457 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2458 LEAVE;
2459}
2460
2461/**
2462 * ipr_reset_reload - Reset/Reload the IOA
2463 * @ioa_cfg: ioa config struct
2464 * @shutdown_type: shutdown type
2465 *
2466 * This function resets the adapter and re-initializes it.
2467 * This function assumes that all new host commands have been stopped.
2468 * Return value:
2469 * SUCCESS / FAILED
2470 **/
2471static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2472 enum ipr_shutdown_type shutdown_type)
2473{
2474 if (!ioa_cfg->in_reset_reload)
2475 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2476
2477 spin_unlock_irq(ioa_cfg->host->host_lock);
2478 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2479 spin_lock_irq(ioa_cfg->host->host_lock);
2480
2481 /* If we got hit with a host reset while we were already resetting
2482 the adapter for some reason, and the reset failed. */
2483 if (ioa_cfg->ioa_is_dead) {
2484 ipr_trace;
2485 return FAILED;
2486 }
2487
2488 return SUCCESS;
2489}
2490
2491/**
2492 * ipr_find_ses_entry - Find matching SES in SES table
2493 * @res: resource entry struct of SES
2494 *
2495 * Return value:
2496 * pointer to SES table entry / NULL on failure
2497 **/
2498static const struct ipr_ses_table_entry *
2499ipr_find_ses_entry(struct ipr_resource_entry *res)
2500{
2501 int i, j, matches;
3e7ebdfa 2502 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2503 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2504
2505 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2506 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2507 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2508 vpids = &res->std_inq_data.vpids;
2509 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2510 matches++;
2511 else
2512 break;
2513 } else
2514 matches++;
2515 }
2516
2517 if (matches == IPR_PROD_ID_LEN)
2518 return ste;
2519 }
2520
2521 return NULL;
2522}
2523
2524/**
2525 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2526 * @ioa_cfg: ioa config struct
2527 * @bus: SCSI bus
2528 * @bus_width: bus width
2529 *
2530 * Return value:
2531 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2532 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2533 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2534 * max 160MHz = max 320MB/sec).
2535 **/
2536static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2537{
2538 struct ipr_resource_entry *res;
2539 const struct ipr_ses_table_entry *ste;
2540 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2541
2542 /* Loop through each config table entry in the config table buffer */
2543 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2544 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2545 continue;
2546
3e7ebdfa 2547 if (bus != res->bus)
1da177e4
LT		 2548 continue;
2549
2550 if (!(ste = ipr_find_ses_entry(res)))
2551 continue;
2552
2553 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2554 }
2555
2556 return max_xfer_rate;
2557}
2558
2559/**
2560 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2561 * @ioa_cfg: ioa config struct
2562 * @max_delay: max delay in micro-seconds to wait
2563 *
2564 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2565 *
2566 * Return value:
2567 * 0 on success / other on failure
2568 **/
2569static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2570{
2571 volatile u32 pcii_reg;
2572 int delay = 1;
2573
2574 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2575 while (delay < max_delay) {
2576 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2577
2578 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2579 return 0;
2580
2581 /* udelay cannot be used if delay is more than a few milliseconds */
2582 if ((delay / 1000) > MAX_UDELAY_MS)
2583 mdelay(delay / 1000);
2584 else
2585 udelay(delay);
2586
2587 delay += delay;
2588 }
2589 return -EIO;
2590}
2591
dcbad00e
WB		 2592/**
2593 * ipr_get_sis64_dump_data_section - Dump IOA memory
2594 * @ioa_cfg: ioa config struct
2595 * @start_addr: adapter address to dump
2596 * @dest: destination kernel buffer
2597 * @length_in_words: length to dump in 4 byte words
2598 *
2599 * Return value:
2600 * 0 on success
2601 **/
2602static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2603 u32 start_addr,
2604 __be32 *dest, u32 length_in_words)
2605{
2606 int i;
2607
2608 for (i = 0; i < length_in_words; i++) {
2609 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2610 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2611 dest++;
2612 }
2613
2614 return 0;
2615}
2616
1da177e4
LT		 2617/**
2618 * ipr_get_ldump_data_section - Dump IOA memory
2619 * @ioa_cfg: ioa config struct
2620 * @start_addr: adapter address to dump
2621 * @dest: destination kernel buffer
2622 * @length_in_words: length to dump in 4 byte words
2623 *
2624 * Return value:
2625 * 0 on success / -EIO on failure
2626 **/
2627static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2628 u32 start_addr,
2629 __be32 *dest, u32 length_in_words)
2630{
2631 volatile u32 temp_pcii_reg;
2632 int i, delay = 0;
2633
dcbad00e
WB		 2634 if (ioa_cfg->sis64)
2635 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2636 dest, length_in_words);
2637
1da177e4
LT		 2638 /* Write IOA interrupt reg starting LDUMP state */
2639 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2640 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2641
2642 /* Wait for IO debug acknowledge */
2643 if (ipr_wait_iodbg_ack(ioa_cfg,
2644 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2645 dev_err(&ioa_cfg->pdev->dev,
2646 "IOA dump long data transfer timeout\n");
2647 return -EIO;
2648 }
2649
2650 /* Signal LDUMP interlocked - clear IO debug ack */
2651 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2652 ioa_cfg->regs.clr_interrupt_reg);
2653
2654 /* Write Mailbox with starting address */
2655 writel(start_addr, ioa_cfg->ioa_mailbox);
2656
2657 /* Signal address valid - clear IOA Reset alert */
2658 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2659 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2660
2661 for (i = 0; i < length_in_words; i++) {
2662 /* Wait for IO debug acknowledge */
2663 if (ipr_wait_iodbg_ack(ioa_cfg,
2664 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2665 dev_err(&ioa_cfg->pdev->dev,
2666 "IOA dump short data transfer timeout\n");
2667 return -EIO;
2668 }
2669
2670 /* Read data from mailbox and increment destination pointer */
2671 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2672 dest++;
2673
2674 /* For all but the last word of data, signal data received */
2675 if (i < (length_in_words - 1)) {
2676 /* Signal dump data received - Clear IO debug Ack */
2677 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2678 ioa_cfg->regs.clr_interrupt_reg);
2679 }
2680 }
2681
2682 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2683 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2684 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2685
2686 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2687 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2688
2689 /* Signal dump data received - Clear IO debug Ack */
2690 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2691 ioa_cfg->regs.clr_interrupt_reg);
2692
2693 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2694 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2695 temp_pcii_reg =
214777ba 2696 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2697
2698 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2699 return 0;
2700
2701 udelay(10);
2702 delay += 10;
2703 }
2704
2705 return 0;
2706}
2707
2708#ifdef CONFIG_SCSI_IPR_DUMP
2709/**
2710 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2711 * @ioa_cfg: ioa config struct
2712 * @pci_address: adapter address
2713 * @length: length of data to copy
2714 *
2715 * Copy data from PCI adapter to kernel buffer.
2716 * Note: length MUST be a 4 byte multiple
2717 * Return value:
2718 * 0 on success / other on failure
2719 **/
2720static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2721 unsigned long pci_address, u32 length)
2722{
2723 int bytes_copied = 0;
4d4dd706 2724 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2725 __be32 *page;
2726 unsigned long lock_flags = 0;
2727 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2728
4d4dd706
KSS		 2729 if (ioa_cfg->sis64)
2730 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2731 else
2732 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2733
1da177e4 2734 while (bytes_copied < length &&
4d4dd706 2735 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2736 if (ioa_dump->page_offset >= PAGE_SIZE ||
2737 ioa_dump->page_offset == 0) {
2738 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2739
2740 if (!page) {
2741 ipr_trace;
2742 return bytes_copied;
2743 }
2744
2745 ioa_dump->page_offset = 0;
2746 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2747 ioa_dump->next_page_index++;
2748 } else
2749 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2750
2751 rem_len = length - bytes_copied;
2752 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2753 cur_len = min(rem_len, rem_page_len);
2754
2755 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2756 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2757 rc = -EIO;
2758 } else {
2759 rc = ipr_get_ldump_data_section(ioa_cfg,
2760 pci_address + bytes_copied,
2761 &page[ioa_dump->page_offset / 4],
2762 (cur_len / sizeof(u32)));
2763 }
2764 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2765
2766 if (!rc) {
2767 ioa_dump->page_offset += cur_len;
2768 bytes_copied += cur_len;
2769 } else {
2770 ipr_trace;
2771 break;
2772 }
2773 schedule();
2774 }
2775
2776 return bytes_copied;
2777}
2778
2779/**
2780 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2781 * @hdr: dump entry header struct
2782 *
2783 * Return value:
2784 * nothing
2785 **/
2786static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2787{
2788 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2789 hdr->num_elems = 1;
2790 hdr->offset = sizeof(*hdr);
2791 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2792}
2793
2794/**
2795 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2796 * @ioa_cfg: ioa config struct
2797 * @driver_dump: driver dump struct
2798 *
2799 * Return value:
2800 * nothing
2801 **/
2802static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2803 struct ipr_driver_dump *driver_dump)
2804{
2805 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2806
2807 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2808 driver_dump->ioa_type_entry.hdr.len =
2809 sizeof(struct ipr_dump_ioa_type_entry) -
2810 sizeof(struct ipr_dump_entry_header);
2811 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2812 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2813 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2814 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2815 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2816 ucode_vpd->minor_release[1];
2817 driver_dump->hdr.num_entries++;
2818}
2819
2820/**
2821 * ipr_dump_version_data - Fill in the driver version in the dump.
2822 * @ioa_cfg: ioa config struct
2823 * @driver_dump: driver dump struct
2824 *
2825 * Return value:
2826 * nothing
2827 **/
2828static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2829 struct ipr_driver_dump *driver_dump)
2830{
2831 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2832 driver_dump->version_entry.hdr.len =
2833 sizeof(struct ipr_dump_version_entry) -
2834 sizeof(struct ipr_dump_entry_header);
2835 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2836 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2837 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2838 driver_dump->hdr.num_entries++;
2839}
2840
2841/**
2842 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2843 * @ioa_cfg: ioa config struct
2844 * @driver_dump: driver dump struct
2845 *
2846 * Return value:
2847 * nothing
2848 **/
2849static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2850 struct ipr_driver_dump *driver_dump)
2851{
2852 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2853 driver_dump->trace_entry.hdr.len =
2854 sizeof(struct ipr_dump_trace_entry) -
2855 sizeof(struct ipr_dump_entry_header);
2856 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2857 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2858 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2859 driver_dump->hdr.num_entries++;
2860}
2861
2862/**
2863 * ipr_dump_location_data - Fill in the IOA location in the dump.
2864 * @ioa_cfg: ioa config struct
2865 * @driver_dump: driver dump struct
2866 *
2867 * Return value:
2868 * nothing
2869 **/
2870static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2871 struct ipr_driver_dump *driver_dump)
2872{
2873 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2874 driver_dump->location_entry.hdr.len =
2875 sizeof(struct ipr_dump_location_entry) -
2876 sizeof(struct ipr_dump_entry_header);
2877 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2878 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 2879 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 2880 driver_dump->hdr.num_entries++;
2881}
2882
2883/**
2884 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2885 * @ioa_cfg: ioa config struct
2886 * @dump: dump struct
2887 *
2888 * Return value:
2889 * nothing
2890 **/
2891static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2892{
2893 unsigned long start_addr, sdt_word;
2894 unsigned long lock_flags = 0;
2895 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2896 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 2897 u32 num_entries, max_num_entries, start_off, end_off;
2898 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 2899 struct ipr_sdt *sdt;
dcbad00e 2900 int valid = 1;
1da177e4
LT		 2901 int i;
2902
2903 ENTER;
2904
2905 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2906
41e9a696 2907 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 2908 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2909 return;
2910 }
2911
110def85
WB		 2912 if (ioa_cfg->sis64) {
2913 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2914 ssleep(IPR_DUMP_DELAY_SECONDS);
2915 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2916 }
2917
1da177e4
LT		 2918 start_addr = readl(ioa_cfg->ioa_mailbox);
2919
dcbad00e 2920 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 2921 dev_err(&ioa_cfg->pdev->dev,
2922 "Invalid dump table format: %lx\n", start_addr);
2923 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2924 return;
2925 }
2926
2927 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2928
2929 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2930
2931 /* Initialize the overall dump header */
2932 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2933 driver_dump->hdr.num_entries = 1;
2934 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2935 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2936 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2937 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2938
2939 ipr_dump_version_data(ioa_cfg, driver_dump);
2940 ipr_dump_location_data(ioa_cfg, driver_dump);
2941 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2942 ipr_dump_trace_data(ioa_cfg, driver_dump);
2943
2944 /* Update dump_header */
2945 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2946
2947 /* IOA Dump entry */
2948 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 2949 ioa_dump->hdr.len = 0;
2950 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2951 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2952
2953 /* First entries in sdt are actually a list of dump addresses and
2954 lengths to gather the real dump data. sdt represents the pointer
2955 to the ioa generated dump table. Dump data will be extracted based
2956 on entries in this table */
2957 sdt = &ioa_dump->sdt;
2958
4d4dd706
KSS		 2959 if (ioa_cfg->sis64) {
2960 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
2961 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2962 } else {
2963 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
2964 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2965 }
2966
2967 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
2968 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 2969 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 2970 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 2971
2972 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 2973 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2974 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 2975 dev_err(&ioa_cfg->pdev->dev,
2976 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2977 rc, be32_to_cpu(sdt->hdr.state));
2978 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2979 ioa_cfg->sdt_state = DUMP_OBTAINED;
2980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2981 return;
2982 }
2983
2984 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2985
4d4dd706
KSS		 2986 if (num_entries > max_num_entries)
2987 num_entries = max_num_entries;
2988
2989 /* Update dump length to the actual data to be copied */
2990 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
2991 if (ioa_cfg->sis64)
2992 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
2993 else
2994 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 2995
2996 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2997
2998 for (i = 0; i < num_entries; i++) {
4d4dd706 2999 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3000 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3001 break;
3002 }
3003
3004 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3005 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3006 if (ioa_cfg->sis64)
3007 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3008 else {
3009 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3010 end_off = be32_to_cpu(sdt->entry[i].end_token);
3011
3012 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3013 bytes_to_copy = end_off - start_off;
3014 else
3015 valid = 0;
3016 }
3017 if (valid) {
4d4dd706 3018 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3019 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3020 continue;
3021 }
3022
3023 /* Copy data from adapter to driver buffers */
3024 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3025 bytes_to_copy);
3026
3027 ioa_dump->hdr.len += bytes_copied;
3028
3029 if (bytes_copied != bytes_to_copy) {
3030 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3031 break;
3032 }
3033 }
3034 }
3035 }
3036
3037 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3038
3039 /* Update dump_header */
3040 driver_dump->hdr.len += ioa_dump->hdr.len;
3041 wmb();
3042 ioa_cfg->sdt_state = DUMP_OBTAINED;
3043 LEAVE;
3044}
3045
3046#else
3047#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3048#endif
3049
3050/**
3051 * ipr_release_dump - Free adapter dump memory
3052 * @kref: kref struct
3053 *
3054 * Return value:
3055 * nothing
3056 **/
3057static void ipr_release_dump(struct kref *kref)
3058{
3059 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3060 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3061 unsigned long lock_flags = 0;
3062 int i;
3063
3064 ENTER;
3065 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3066 ioa_cfg->dump = NULL;
3067 ioa_cfg->sdt_state = INACTIVE;
3068 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3069
3070 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3071 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3072
4d4dd706 3073 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3074 kfree(dump);
3075 LEAVE;
3076}
3077
3078/**
3079 * ipr_worker_thread - Worker thread
c4028958 3080 * @work: ioa config struct
1da177e4
LT		 3081 *
3082 * Called at task level from a work thread. This function takes care
3083 * of adding and removing device from the mid-layer as configuration
3084 * changes are detected by the adapter.
3085 *
3086 * Return value:
3087 * nothing
3088 **/
c4028958 3089static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3090{
3091 unsigned long lock_flags;
3092 struct ipr_resource_entry *res;
3093 struct scsi_device *sdev;
3094 struct ipr_dump *dump;
c4028958
DH		 3095 struct ipr_ioa_cfg *ioa_cfg =
3096 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3097 u8 bus, target, lun;
3098 int did_work;
3099
3100 ENTER;
3101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3102
41e9a696 3103 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3104 dump = ioa_cfg->dump;
3105 if (!dump) {
3106 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3107 return;
3108 }
3109 kref_get(&dump->kref);
3110 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3111 ipr_get_ioa_dump(ioa_cfg, dump);
3112 kref_put(&dump->kref, ipr_release_dump);
3113
3114 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3115 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3116 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3117 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3118 return;
3119 }
3120
3121restart:
3122 do {
3123 did_work = 0;
3124 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3125 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3126 return;
3127 }
3128
3129 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3130 if (res->del_from_ml && res->sdev) {
3131 did_work = 1;
3132 sdev = res->sdev;
3133 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3134 if (!res->add_to_ml)
3135 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3136 else
3137 res->del_from_ml = 0;
1da177e4
LT		 3138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3139 scsi_remove_device(sdev);
3140 scsi_device_put(sdev);
3141 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3142 }
3143 break;
3144 }
3145 }
3146 } while(did_work);
3147
3148 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3149 if (res->add_to_ml) {
3e7ebdfa
WB		 3150 bus = res->bus;
3151 target = res->target;
3152 lun = res->lun;
1121b794 3153 res->add_to_ml = 0;
1da177e4
LT		 3154 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3155 scsi_add_device(ioa_cfg->host, bus, target, lun);
3156 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3157 goto restart;
3158 }
3159 }
3160
3161 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3162 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3163 LEAVE;
3164}
3165
3166#ifdef CONFIG_SCSI_IPR_TRACE
3167/**
3168 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3169 * @filp: open sysfs file
1da177e4 3170 * @kobj: kobject struct
91a69029 3171 * @bin_attr: bin_attribute struct
1da177e4
LT		 3172 * @buf: buffer
3173 * @off: offset
3174 * @count: buffer size
3175 *
3176 * Return value:
3177 * number of bytes printed to buffer
3178 **/
2c3c8bea 3179static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3180 struct bin_attribute *bin_attr,
3181 char *buf, loff_t off, size_t count)
1da177e4 3182{
ee959b00
TJ		 3183 struct device *dev = container_of(kobj, struct device, kobj);
3184 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3185 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3186 unsigned long lock_flags = 0;
d777aaf3 3187 ssize_t ret;
1da177e4
LT		 3188
3189 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3190 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3191 IPR_TRACE_SIZE);
1da177e4 3192 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3193
3194 return ret;
1da177e4
LT		 3195}
3196
3197static struct bin_attribute ipr_trace_attr = {
3198 .attr = {
3199 .name = "trace",
3200 .mode = S_IRUGO,
3201 },
3202 .size = 0,
3203 .read = ipr_read_trace,
3204};
3205#endif
3206
3207/**
3208 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3209 * @dev: class device struct
3210 * @buf: buffer
1da177e4
LT		 3211 *
3212 * Return value:
3213 * number of bytes printed to buffer
3214 **/
ee959b00
TJ		 3215static ssize_t ipr_show_fw_version(struct device *dev,
3216 struct device_attribute *attr, char *buf)
1da177e4 3217{
ee959b00 3218 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3219 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3220 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3221 unsigned long lock_flags = 0;
3222 int len;
3223
3224 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3225 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3226 ucode_vpd->major_release, ucode_vpd->card_type,
3227 ucode_vpd->minor_release[0],
3228 ucode_vpd->minor_release[1]);
3229 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3230 return len;
3231}
3232
ee959b00 3233static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3234 .attr = {
3235 .name = "fw_version",
3236 .mode = S_IRUGO,
3237 },
3238 .show = ipr_show_fw_version,
3239};
3240
3241/**
3242 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3243 * @dev: class device struct
3244 * @buf: buffer
1da177e4
LT		 3245 *
3246 * Return value:
3247 * number of bytes printed to buffer
3248 **/
ee959b00
TJ		 3249static ssize_t ipr_show_log_level(struct device *dev,
3250 struct device_attribute *attr, char *buf)
1da177e4 3251{
ee959b00 3252 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3253 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3254 unsigned long lock_flags = 0;
3255 int len;
3256
3257 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3258 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3259 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3260 return len;
3261}
3262
3263/**
3264 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3265 * @dev: class device struct
3266 * @buf: buffer
1da177e4
LT		 3267 *
3268 * Return value:
3269 * number of bytes printed to buffer
3270 **/
ee959b00
TJ		 3271static ssize_t ipr_store_log_level(struct device *dev,
3272 struct device_attribute *attr,
1da177e4
LT		 3273 const char *buf, size_t count)
3274{
ee959b00 3275 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3276 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3277 unsigned long lock_flags = 0;
3278
3279 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3280 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3282 return strlen(buf);
3283}
3284
ee959b00 3285static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3286 .attr = {
3287 .name = "log_level",
3288 .mode = S_IRUGO | S_IWUSR,
3289 },
3290 .show = ipr_show_log_level,
3291 .store = ipr_store_log_level
3292};
3293
3294/**
3295 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3296 * @dev: device struct
3297 * @buf: buffer
3298 * @count: buffer size
1da177e4
LT		 3299 *
3300 * This function will reset the adapter and wait a reasonable
3301 * amount of time for any errors that the adapter might log.
3302 *
3303 * Return value:
3304 * count on success / other on failure
3305 **/
ee959b00
TJ		 3306static ssize_t ipr_store_diagnostics(struct device *dev,
3307 struct device_attribute *attr,
1da177e4
LT		 3308 const char *buf, size_t count)
3309{
ee959b00 3310 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3311 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3312 unsigned long lock_flags = 0;
3313 int rc = count;
3314
3315 if (!capable(CAP_SYS_ADMIN))
3316 return -EACCES;
3317
1da177e4 3318 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3319 while(ioa_cfg->in_reset_reload) {
3320 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3321 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3322 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3323 }
3324
1da177e4
LT		 3325 ioa_cfg->errors_logged = 0;
3326 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3327
3328 if (ioa_cfg->in_reset_reload) {
3329 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3330 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3331
3332 /* Wait for a second for any errors to be logged */
3333 msleep(1000);
3334 } else {
3335 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3336 return -EIO;
3337 }
3338
3339 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3340 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3341 rc = -EIO;
3342 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3343
3344 return rc;
3345}
3346
ee959b00 3347static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3348 .attr = {
3349 .name = "run_diagnostics",
3350 .mode = S_IWUSR,
3351 },
3352 .store = ipr_store_diagnostics
3353};
3354
f37eb54b
BK		 3355/**
3356 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3357 * @class_dev: device struct
3358 * @buf: buffer
f37eb54b
BK		 3359 *
3360 * Return value:
3361 * number of bytes printed to buffer
3362 **/
ee959b00
TJ		 3363static ssize_t ipr_show_adapter_state(struct device *dev,
3364 struct device_attribute *attr, char *buf)
f37eb54b 3365{
ee959b00 3366 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3367 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3368 unsigned long lock_flags = 0;
3369 int len;
3370
3371 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3372 if (ioa_cfg->ioa_is_dead)
3373 len = snprintf(buf, PAGE_SIZE, "offline\n");
3374 else
3375 len = snprintf(buf, PAGE_SIZE, "online\n");
3376 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3377 return len;
3378}
3379
3380/**
3381 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3382 * @dev: device struct
3383 * @buf: buffer
3384 * @count: buffer size
f37eb54b
BK		 3385 *
3386 * This function will change the adapter's state.
3387 *
3388 * Return value:
3389 * count on success / other on failure
3390 **/
ee959b00
TJ		 3391static ssize_t ipr_store_adapter_state(struct device *dev,
3392 struct device_attribute *attr,
f37eb54b
BK		 3393 const char *buf, size_t count)
3394{
ee959b00 3395 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3396 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3397 unsigned long lock_flags;
3398 int result = count;
3399
3400 if (!capable(CAP_SYS_ADMIN))
3401 return -EACCES;
3402
3403 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3404 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3405 ioa_cfg->ioa_is_dead = 0;
3406 ioa_cfg->reset_retries = 0;
3407 ioa_cfg->in_ioa_bringdown = 0;
3408 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3409 }
3410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3411 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3412
3413 return result;
3414}
3415
ee959b00 3416static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3417 .attr = {
49dd0961 3418 .name = "online_state",
f37eb54b
BK		 3419 .mode = S_IRUGO | S_IWUSR,
3420 },
3421 .show = ipr_show_adapter_state,
3422 .store = ipr_store_adapter_state
3423};
3424
1da177e4
LT		 3425/**
3426 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3427 * @dev: device struct
3428 * @buf: buffer
3429 * @count: buffer size
1da177e4
LT		 3430 *
3431 * This function will reset the adapter.
3432 *
3433 * Return value:
3434 * count on success / other on failure
3435 **/
ee959b00
TJ		 3436static ssize_t ipr_store_reset_adapter(struct device *dev,
3437 struct device_attribute *attr,
1da177e4
LT		 3438 const char *buf, size_t count)
3439{
ee959b00 3440 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3441 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3442 unsigned long lock_flags;
3443 int result = count;
3444
3445 if (!capable(CAP_SYS_ADMIN))
3446 return -EACCES;
3447
3448 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3449 if (!ioa_cfg->in_reset_reload)
3450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3452 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3453
3454 return result;
3455}
3456
ee959b00 3457static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3458 .attr = {
3459 .name = "reset_host",
3460 .mode = S_IWUSR,
3461 },
3462 .store = ipr_store_reset_adapter
3463};
3464
3465/**
3466 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3467 * @buf_len: buffer length
3468 *
3469 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3470 * list to use for microcode download
3471 *
3472 * Return value:
3473 * pointer to sglist / NULL on failure
3474 **/
3475static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3476{
3477 int sg_size, order, bsize_elem, num_elem, i, j;
3478 struct ipr_sglist *sglist;
3479 struct scatterlist *scatterlist;
3480 struct page *page;
3481
3482 /* Get the minimum size per scatter/gather element */
3483 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3484
3485 /* Get the actual size per element */
3486 order = get_order(sg_size);
3487
3488 /* Determine the actual number of bytes per element */
3489 bsize_elem = PAGE_SIZE * (1 << order);
3490
3491 /* Determine the actual number of sg entries needed */
3492 if (buf_len % bsize_elem)
3493 num_elem = (buf_len / bsize_elem) + 1;
3494 else
3495 num_elem = buf_len / bsize_elem;
3496
3497 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3498 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3499 (sizeof(struct scatterlist) * (num_elem - 1)),
3500 GFP_KERNEL);
3501
3502 if (sglist == NULL) {
3503 ipr_trace;
3504 return NULL;
3505 }
3506
1da177e4 3507 scatterlist = sglist->scatterlist;
45711f1a 3508 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3509
3510 sglist->order = order;
3511 sglist->num_sg = num_elem;
3512
3513 /* Allocate a bunch of sg elements */
3514 for (i = 0; i < num_elem; i++) {
3515 page = alloc_pages(GFP_KERNEL, order);
3516 if (!page) {
3517 ipr_trace;
3518
3519 /* Free up what we already allocated */
3520 for (j = i - 1; j >= 0; j--)
45711f1a 3521 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3522 kfree(sglist);
3523 return NULL;
3524 }
3525
642f1490 3526 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3527 }
3528
3529 return sglist;
3530}
3531
3532/**
3533 * ipr_free_ucode_buffer - Frees a microcode download buffer
3534 * @p_dnld: scatter/gather list pointer
3535 *
3536 * Free a DMA'able ucode download buffer previously allocated with
3537 * ipr_alloc_ucode_buffer
3538 *
3539 * Return value:
3540 * nothing
3541 **/
3542static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3543{
3544 int i;
3545
3546 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3547 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3548
3549 kfree(sglist);
3550}
3551
3552/**
3553 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3554 * @sglist: scatter/gather list pointer
3555 * @buffer: buffer pointer
3556 * @len: buffer length
3557 *
3558 * Copy a microcode image from a user buffer into a buffer allocated by
3559 * ipr_alloc_ucode_buffer
3560 *
3561 * Return value:
3562 * 0 on success / other on failure
3563 **/
3564static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3565 u8 *buffer, u32 len)
3566{
3567 int bsize_elem, i, result = 0;
3568 struct scatterlist *scatterlist;
3569 void *kaddr;
3570
3571 /* Determine the actual number of bytes per element */
3572 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3573
3574 scatterlist = sglist->scatterlist;
3575
3576 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3577 struct page *page = sg_page(&scatterlist[i]);
3578
3579 kaddr = kmap(page);
1da177e4 3580 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3581 kunmap(page);
1da177e4
LT		 3582
3583 scatterlist[i].length = bsize_elem;
3584
3585 if (result != 0) {
3586 ipr_trace;
3587 return result;
3588 }
3589 }
3590
3591 if (len % bsize_elem) {
45711f1a
JA		 3592 struct page *page = sg_page(&scatterlist[i]);
3593
3594 kaddr = kmap(page);
1da177e4 3595 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3596 kunmap(page);
1da177e4
LT		 3597
3598 scatterlist[i].length = len % bsize_elem;
3599 }
3600
3601 sglist->buffer_len = len;
3602 return result;
3603}
3604
a32c055f
WB		 3605/**
3606 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3607 * @ipr_cmd: ipr command struct
3608 * @sglist: scatter/gather list
3609 *
3610 * Builds a microcode download IOA data list (IOADL).
3611 *
3612 **/
3613static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3614 struct ipr_sglist *sglist)
3615{
3616 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3617 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3618 struct scatterlist *scatterlist = sglist->scatterlist;
3619 int i;
3620
3621 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3622 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3623 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3624
3625 ioarcb->ioadl_len =
3626 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3627 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3628 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3629 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3630 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3631 }
3632
3633 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3634}
3635
1da177e4 3636/**
12baa420 3637 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3638 * @ipr_cmd: ipr command struct
3639 * @sglist: scatter/gather list
1da177e4 3640 *
12baa420 3641 * Builds a microcode download IOA data list (IOADL).
1da177e4 3642 *
1da177e4 3643 **/
12baa420
BK		 3644static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3645 struct ipr_sglist *sglist)
1da177e4 3646{
1da177e4 3647 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3648 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3649 struct scatterlist *scatterlist = sglist->scatterlist;
3650 int i;
3651
12baa420 3652 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3653 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3654 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3655
3656 ioarcb->ioadl_len =
1da177e4
LT		 3657 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3658
3659 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3660 ioadl[i].flags_and_data_len =
3661 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3662 ioadl[i].address =
3663 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3664 }
3665
12baa420
BK		 3666 ioadl[i-1].flags_and_data_len |=
3667 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3668}
3669
3670/**
3671 * ipr_update_ioa_ucode - Update IOA's microcode
3672 * @ioa_cfg: ioa config struct
3673 * @sglist: scatter/gather list
3674 *
3675 * Initiate an adapter reset to update the IOA's microcode
3676 *
3677 * Return value:
3678 * 0 on success / -EIO on failure
3679 **/
3680static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3681 struct ipr_sglist *sglist)
3682{
3683 unsigned long lock_flags;
3684
3685 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3686 while(ioa_cfg->in_reset_reload) {
3687 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3688 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3689 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3690 }
12baa420
BK		 3691
3692 if (ioa_cfg->ucode_sglist) {
3693 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3694 dev_err(&ioa_cfg->pdev->dev,
3695 "Microcode download already in progress\n");
3696 return -EIO;
1da177e4 3697 }
12baa420
BK		 3698
3699 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3700 sglist->num_sg, DMA_TO_DEVICE);
3701
3702 if (!sglist->num_dma_sg) {
3703 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3704 dev_err(&ioa_cfg->pdev->dev,
3705 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3706 return -EIO;
3707 }
3708
12baa420
BK		 3709 ioa_cfg->ucode_sglist = sglist;
3710 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3711 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3712 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3713
3714 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3715 ioa_cfg->ucode_sglist = NULL;
3716 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3717 return 0;
3718}
3719
3720/**
3721 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3722 * @class_dev: device struct
3723 * @buf: buffer
3724 * @count: buffer size
1da177e4
LT		 3725 *
3726 * This function will update the firmware on the adapter.
3727 *
3728 * Return value:
3729 * count on success / other on failure
3730 **/
ee959b00
TJ		 3731static ssize_t ipr_store_update_fw(struct device *dev,
3732 struct device_attribute *attr,
3733 const char *buf, size_t count)
1da177e4 3734{
ee959b00 3735 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3736 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3737 struct ipr_ucode_image_header *image_hdr;
3738 const struct firmware *fw_entry;
3739 struct ipr_sglist *sglist;
1da177e4
LT		 3740 char fname[100];
3741 char *src;
3742 int len, result, dnld_size;
3743
3744 if (!capable(CAP_SYS_ADMIN))
3745 return -EACCES;
3746
3747 len = snprintf(fname, 99, "%s", buf);
3748 fname[len-1] = '\0';
3749
3750 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3751 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3752 return -EIO;
3753 }
3754
3755 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3756
1da177e4
LT		 3757 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3758 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3759 sglist = ipr_alloc_ucode_buffer(dnld_size);
3760
3761 if (!sglist) {
3762 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3763 release_firmware(fw_entry);
3764 return -ENOMEM;
3765 }
3766
3767 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3768
3769 if (result) {
3770 dev_err(&ioa_cfg->pdev->dev,
3771 "Microcode buffer copy to DMA buffer failed\n");
12baa420 3772 goto out;
1da177e4
LT		 3773 }
3774
14ed9cc7
WB		 3775 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
3776
12baa420 3777 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 3778
12baa420
BK		 3779 if (!result)
3780 result = count;
3781out:
1da177e4
LT		 3782 ipr_free_ucode_buffer(sglist);
3783 release_firmware(fw_entry);
12baa420 3784 return result;
1da177e4
LT		 3785}
3786
ee959b00 3787static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 3788 .attr = {
3789 .name = "update_fw",
3790 .mode = S_IWUSR,
3791 },
3792 .store = ipr_store_update_fw
3793};
3794
75576bb9
WB		 3795/**
3796 * ipr_show_fw_type - Show the adapter's firmware type.
3797 * @dev: class device struct
3798 * @buf: buffer
3799 *
3800 * Return value:
3801 * number of bytes printed to buffer
3802 **/
3803static ssize_t ipr_show_fw_type(struct device *dev,
3804 struct device_attribute *attr, char *buf)
3805{
3806 struct Scsi_Host *shost = class_to_shost(dev);
3807 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3808 unsigned long lock_flags = 0;
3809 int len;
3810
3811 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3812 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3813 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3814 return len;
3815}
3816
3817static struct device_attribute ipr_ioa_fw_type_attr = {
3818 .attr = {
3819 .name = "fw_type",
3820 .mode = S_IRUGO,
3821 },
3822 .show = ipr_show_fw_type
3823};
3824
ee959b00 3825static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 3826 &ipr_fw_version_attr,
3827 &ipr_log_level_attr,
3828 &ipr_diagnostics_attr,
f37eb54b 3829 &ipr_ioa_state_attr,
1da177e4
LT		 3830 &ipr_ioa_reset_attr,
3831 &ipr_update_fw_attr,
75576bb9 3832 &ipr_ioa_fw_type_attr,
1da177e4
LT		 3833 NULL,
3834};
3835
3836#ifdef CONFIG_SCSI_IPR_DUMP
3837/**
3838 * ipr_read_dump - Dump the adapter
2c3c8bea 3839 * @filp: open sysfs file
1da177e4 3840 * @kobj: kobject struct
91a69029 3841 * @bin_attr: bin_attribute struct
1da177e4
LT		 3842 * @buf: buffer
3843 * @off: offset
3844 * @count: buffer size
3845 *
3846 * Return value:
3847 * number of bytes printed to buffer
3848 **/
2c3c8bea 3849static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3850 struct bin_attribute *bin_attr,
3851 char *buf, loff_t off, size_t count)
1da177e4 3852{
ee959b00 3853 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 3854 struct Scsi_Host *shost = class_to_shost(cdev);
3855 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3856 struct ipr_dump *dump;
3857 unsigned long lock_flags = 0;
3858 char *src;
4d4dd706 3859 int len, sdt_end;
1da177e4
LT		 3860 size_t rc = count;
3861
3862 if (!capable(CAP_SYS_ADMIN))
3863 return -EACCES;
3864
3865 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3866 dump = ioa_cfg->dump;
3867
3868 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3869 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3870 return 0;
3871 }
3872 kref_get(&dump->kref);
3873 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3874
3875 if (off > dump->driver_dump.hdr.len) {
3876 kref_put(&dump->kref, ipr_release_dump);
3877 return 0;
3878 }
3879
3880 if (off + count > dump->driver_dump.hdr.len) {
3881 count = dump->driver_dump.hdr.len - off;
3882 rc = count;
3883 }
3884
3885 if (count && off < sizeof(dump->driver_dump)) {
3886 if (off + count > sizeof(dump->driver_dump))
3887 len = sizeof(dump->driver_dump) - off;
3888 else
3889 len = count;
3890 src = (u8 *)&dump->driver_dump + off;
3891 memcpy(buf, src, len);
3892 buf += len;
3893 off += len;
3894 count -= len;
3895 }
3896
3897 off -= sizeof(dump->driver_dump);
3898
4d4dd706
KSS		 3899 if (ioa_cfg->sis64)
3900 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3901 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
3902 sizeof(struct ipr_sdt_entry));
3903 else
3904 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3905 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
3906
3907 if (count && off < sdt_end) {
3908 if (off + count > sdt_end)
3909 len = sdt_end - off;
1da177e4
LT		 3910 else
3911 len = count;
3912 src = (u8 *)&dump->ioa_dump + off;
3913 memcpy(buf, src, len);
3914 buf += len;
3915 off += len;
3916 count -= len;
3917 }
3918
4d4dd706 3919 off -= sdt_end;
1da177e4
LT		 3920
3921 while (count) {
3922 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3923 len = PAGE_ALIGN(off) - off;
3924 else
3925 len = count;
3926 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3927 src += off & ~PAGE_MASK;
3928 memcpy(buf, src, len);
3929 buf += len;
3930 off += len;
3931 count -= len;
3932 }
3933
3934 kref_put(&dump->kref, ipr_release_dump);
3935 return rc;
3936}
3937
3938/**
3939 * ipr_alloc_dump - Prepare for adapter dump
3940 * @ioa_cfg: ioa config struct
3941 *
3942 * Return value:
3943 * 0 on success / other on failure
3944 **/
3945static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3946{
3947 struct ipr_dump *dump;
4d4dd706 3948 __be32 **ioa_data;
1da177e4
LT		 3949 unsigned long lock_flags = 0;
3950
0bc42e35 3951 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 3952
3953 if (!dump) {
3954 ipr_err("Dump memory allocation failed\n");
3955 return -ENOMEM;
3956 }
3957
4d4dd706
KSS		 3958 if (ioa_cfg->sis64)
3959 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3960 else
3961 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3962
3963 if (!ioa_data) {
3964 ipr_err("Dump memory allocation failed\n");
3965 kfree(dump);
3966 return -ENOMEM;
3967 }
3968
3969 dump->ioa_dump.ioa_data = ioa_data;
3970
1da177e4
LT		 3971 kref_init(&dump->kref);
3972 dump->ioa_cfg = ioa_cfg;
3973
3974 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3975
3976 if (INACTIVE != ioa_cfg->sdt_state) {
3977 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 3978 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3979 kfree(dump);
3980 return 0;
3981 }
3982
3983 ioa_cfg->dump = dump;
3984 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3985 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3986 ioa_cfg->dump_taken = 1;
3987 schedule_work(&ioa_cfg->work_q);
3988 }
3989 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3990
1da177e4
LT		 3991 return 0;
3992}
3993
3994/**
3995 * ipr_free_dump - Free adapter dump memory
3996 * @ioa_cfg: ioa config struct
3997 *
3998 * Return value:
3999 * 0 on success / other on failure
4000 **/
4001static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4002{
4003 struct ipr_dump *dump;
4004 unsigned long lock_flags = 0;
4005
4006 ENTER;
4007
4008 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4009 dump = ioa_cfg->dump;
4010 if (!dump) {
4011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4012 return 0;
4013 }
4014
4015 ioa_cfg->dump = NULL;
4016 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4017
4018 kref_put(&dump->kref, ipr_release_dump);
4019
4020 LEAVE;
4021 return 0;
4022}
4023
4024/**
4025 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4026 * @filp: open sysfs file
1da177e4 4027 * @kobj: kobject struct
91a69029 4028 * @bin_attr: bin_attribute struct
1da177e4
LT		 4029 * @buf: buffer
4030 * @off: offset
4031 * @count: buffer size
4032 *
4033 * Return value:
4034 * number of bytes printed to buffer
4035 **/
2c3c8bea 4036static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4037 struct bin_attribute *bin_attr,
4038 char *buf, loff_t off, size_t count)
1da177e4 4039{
ee959b00 4040 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4041 struct Scsi_Host *shost = class_to_shost(cdev);
4042 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4043 int rc;
4044
4045 if (!capable(CAP_SYS_ADMIN))
4046 return -EACCES;
4047
4048 if (buf[0] == '1')
4049 rc = ipr_alloc_dump(ioa_cfg);
4050 else if (buf[0] == '0')
4051 rc = ipr_free_dump(ioa_cfg);
4052 else
4053 return -EINVAL;
4054
4055 if (rc)
4056 return rc;
4057 else
4058 return count;
4059}
4060
4061static struct bin_attribute ipr_dump_attr = {
4062 .attr = {
4063 .name = "dump",
4064 .mode = S_IRUSR | S_IWUSR,
4065 },
4066 .size = 0,
4067 .read = ipr_read_dump,
4068 .write = ipr_write_dump
4069};
4070#else
4071static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4072#endif
4073
4074/**
4075 * ipr_change_queue_depth - Change the device's queue depth
4076 * @sdev: scsi device struct
4077 * @qdepth: depth to set
e881a172 4078 * @reason: calling context
1da177e4
LT		 4079 *
4080 * Return value:
4081 * actual depth set
4082 **/
e881a172
MC		 4083static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4084 int reason)
1da177e4 4085{
35a39691
BK		 4086 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4087 struct ipr_resource_entry *res;
4088 unsigned long lock_flags = 0;
4089
e881a172
MC		 4090 if (reason != SCSI_QDEPTH_DEFAULT)
4091 return -EOPNOTSUPP;
4092
35a39691
BK		 4093 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4094 res = (struct ipr_resource_entry *)sdev->hostdata;
4095
4096 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4097 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4099
1da177e4
LT		 4100 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4101 return sdev->queue_depth;
4102}
4103
4104/**
4105 * ipr_change_queue_type - Change the device's queue type
4106 * @dsev: scsi device struct
4107 * @tag_type: type of tags to use
4108 *
4109 * Return value:
4110 * actual queue type set
4111 **/
4112static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4113{
4114 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4115 struct ipr_resource_entry *res;
4116 unsigned long lock_flags = 0;
4117
4118 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4119 res = (struct ipr_resource_entry *)sdev->hostdata;
4120
4121 if (res) {
4122 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4123 /*
4124 * We don't bother quiescing the device here since the
4125 * adapter firmware does it for us.
4126 */
4127 scsi_set_tag_type(sdev, tag_type);
4128
4129 if (tag_type)
4130 scsi_activate_tcq(sdev, sdev->queue_depth);
4131 else
4132 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4133 } else
4134 tag_type = 0;
4135 } else
4136 tag_type = 0;
4137
4138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4139 return tag_type;
4140}
4141
4142/**
4143 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4144 * @dev: device struct
46d74563 4145 * @attr: device attribute structure
1da177e4
LT		 4146 * @buf: buffer
4147 *
4148 * Return value:
4149 * number of bytes printed to buffer
4150 **/
10523b3b 4151static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4152{
4153 struct scsi_device *sdev = to_scsi_device(dev);
4154 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4155 struct ipr_resource_entry *res;
4156 unsigned long lock_flags = 0;
4157 ssize_t len = -ENXIO;
4158
4159 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4160 res = (struct ipr_resource_entry *)sdev->hostdata;
4161 if (res)
3e7ebdfa 4162 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4163 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4164 return len;
4165}
4166
4167static struct device_attribute ipr_adapter_handle_attr = {
4168 .attr = {
4169 .name = "adapter_handle",
4170 .mode = S_IRUSR,
4171 },
4172 .show = ipr_show_adapter_handle
4173};
4174
3e7ebdfa 4175/**
5adcbeb3
WB		 4176 * ipr_show_resource_path - Show the resource path or the resource address for
4177 * this device.
3e7ebdfa 4178 * @dev: device struct
46d74563 4179 * @attr: device attribute structure
3e7ebdfa
WB		 4180 * @buf: buffer
4181 *
4182 * Return value:
4183 * number of bytes printed to buffer
4184 **/
4185static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4186{
4187 struct scsi_device *sdev = to_scsi_device(dev);
4188 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4189 struct ipr_resource_entry *res;
4190 unsigned long lock_flags = 0;
4191 ssize_t len = -ENXIO;
4192 char buffer[IPR_MAX_RES_PATH_LENGTH];
4193
4194 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4195 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4196 if (res && ioa_cfg->sis64)
3e7ebdfa 4197 len = snprintf(buf, PAGE_SIZE, "%s\n",
5adcbeb3
WB		 4198 ipr_format_res_path(res->res_path, buffer,
4199 sizeof(buffer)));
4200 else if (res)
4201 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4202 res->bus, res->target, res->lun);
4203
3e7ebdfa
WB		 4204 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4205 return len;
4206}
4207
4208static struct device_attribute ipr_resource_path_attr = {
4209 .attr = {
4210 .name = "resource_path",
75576bb9 4211 .mode = S_IRUGO,
3e7ebdfa
WB		 4212 },
4213 .show = ipr_show_resource_path
4214};
4215
46d74563
WB		 4216/**
4217 * ipr_show_device_id - Show the device_id for this device.
4218 * @dev: device struct
4219 * @attr: device attribute structure
4220 * @buf: buffer
4221 *
4222 * Return value:
4223 * number of bytes printed to buffer
4224 **/
4225static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4226{
4227 struct scsi_device *sdev = to_scsi_device(dev);
4228 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4229 struct ipr_resource_entry *res;
4230 unsigned long lock_flags = 0;
4231 ssize_t len = -ENXIO;
4232
4233 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4234 res = (struct ipr_resource_entry *)sdev->hostdata;
4235 if (res && ioa_cfg->sis64)
4236 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4237 else if (res)
4238 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4239
4240 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4241 return len;
4242}
4243
4244static struct device_attribute ipr_device_id_attr = {
4245 .attr = {
4246 .name = "device_id",
4247 .mode = S_IRUGO,
4248 },
4249 .show = ipr_show_device_id
4250};
4251
75576bb9
WB		 4252/**
4253 * ipr_show_resource_type - Show the resource type for this device.
4254 * @dev: device struct
46d74563 4255 * @attr: device attribute structure
75576bb9
WB		 4256 * @buf: buffer
4257 *
4258 * Return value:
4259 * number of bytes printed to buffer
4260 **/
4261static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4262{
4263 struct scsi_device *sdev = to_scsi_device(dev);
4264 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4265 struct ipr_resource_entry *res;
4266 unsigned long lock_flags = 0;
4267 ssize_t len = -ENXIO;
4268
4269 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4270 res = (struct ipr_resource_entry *)sdev->hostdata;
4271
4272 if (res)
4273 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4274
4275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4276 return len;
4277}
4278
4279static struct device_attribute ipr_resource_type_attr = {
4280 .attr = {
4281 .name = "resource_type",
4282 .mode = S_IRUGO,
4283 },
4284 .show = ipr_show_resource_type
4285};
4286
1da177e4
LT		 4287static struct device_attribute *ipr_dev_attrs[] = {
4288 &ipr_adapter_handle_attr,
3e7ebdfa 4289 &ipr_resource_path_attr,
46d74563 4290 &ipr_device_id_attr,
75576bb9 4291 &ipr_resource_type_attr,
1da177e4
LT		 4292 NULL,
4293};
4294
4295/**
4296 * ipr_biosparam - Return the HSC mapping
4297 * @sdev: scsi device struct
4298 * @block_device: block device pointer
4299 * @capacity: capacity of the device
4300 * @parm: Array containing returned HSC values.
4301 *
4302 * This function generates the HSC parms that fdisk uses.
4303 * We want to make sure we return something that places partitions
4304 * on 4k boundaries for best performance with the IOA.
4305 *
4306 * Return value:
4307 * 0 on success
4308 **/
4309static int ipr_biosparam(struct scsi_device *sdev,
4310 struct block_device *block_device,
4311 sector_t capacity, int *parm)
4312{
4313 int heads, sectors;
4314 sector_t cylinders;
4315
4316 heads = 128;
4317 sectors = 32;
4318
4319 cylinders = capacity;
4320 sector_div(cylinders, (128 * 32));
4321
4322 /* return result */
4323 parm[0] = heads;
4324 parm[1] = sectors;
4325 parm[2] = cylinders;
4326
4327 return 0;
4328}
4329
35a39691
BK		 4330/**
4331 * ipr_find_starget - Find target based on bus/target.
4332 * @starget: scsi target struct
4333 *
4334 * Return value:
4335 * resource entry pointer if found / NULL if not found
4336 **/
4337static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4338{
4339 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4340 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4341 struct ipr_resource_entry *res;
4342
4343 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4344 if ((res->bus == starget->channel) &&
0ee1d714 4345 (res->target == starget->id)) {
35a39691
BK		 4346 return res;
4347 }
4348 }
4349
4350 return NULL;
4351}
4352
4353static struct ata_port_info sata_port_info;
4354
4355/**
4356 * ipr_target_alloc - Prepare for commands to a SCSI target
4357 * @starget: scsi target struct
4358 *
4359 * If the device is a SATA device, this function allocates an
4360 * ATA port with libata, else it does nothing.
4361 *
4362 * Return value:
4363 * 0 on success / non-0 on failure
4364 **/
4365static int ipr_target_alloc(struct scsi_target *starget)
4366{
4367 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4368 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4369 struct ipr_sata_port *sata_port;
4370 struct ata_port *ap;
4371 struct ipr_resource_entry *res;
4372 unsigned long lock_flags;
4373
4374 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4375 res = ipr_find_starget(starget);
4376 starget->hostdata = NULL;
4377
4378 if (res && ipr_is_gata(res)) {
4379 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4380 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4381 if (!sata_port)
4382 return -ENOMEM;
4383
4384 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4385 if (ap) {
4386 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4387 sata_port->ioa_cfg = ioa_cfg;
4388 sata_port->ap = ap;
4389 sata_port->res = res;
4390
4391 res->sata_port = sata_port;
4392 ap->private_data = sata_port;
4393 starget->hostdata = sata_port;
4394 } else {
4395 kfree(sata_port);
4396 return -ENOMEM;
4397 }
4398 }
4399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4400
4401 return 0;
4402}
4403
4404/**
4405 * ipr_target_destroy - Destroy a SCSI target
4406 * @starget: scsi target struct
4407 *
4408 * If the device was a SATA device, this function frees the libata
4409 * ATA port, else it does nothing.
4410 *
4411 **/
4412static void ipr_target_destroy(struct scsi_target *starget)
4413{
4414 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4415 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4416 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4417
4418 if (ioa_cfg->sis64) {
0ee1d714
BK		 4419 if (!ipr_find_starget(starget)) {
4420 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4421 clear_bit(starget->id, ioa_cfg->array_ids);
4422 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4423 clear_bit(starget->id, ioa_cfg->vset_ids);
4424 else if (starget->channel == 0)
4425 clear_bit(starget->id, ioa_cfg->target_ids);
4426 }
3e7ebdfa 4427 }
35a39691
BK		 4428
4429 if (sata_port) {
4430 starget->hostdata = NULL;
4431 ata_sas_port_destroy(sata_port->ap);
4432 kfree(sata_port);
4433 }
4434}
4435
4436/**
4437 * ipr_find_sdev - Find device based on bus/target/lun.
4438 * @sdev: scsi device struct
4439 *
4440 * Return value:
4441 * resource entry pointer if found / NULL if not found
4442 **/
4443static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4444{
4445 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4446 struct ipr_resource_entry *res;
4447
4448 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4449 if ((res->bus == sdev->channel) &&
4450 (res->target == sdev->id) &&
4451 (res->lun == sdev->lun))
35a39691
BK		 4452 return res;
4453 }
4454
4455 return NULL;
4456}
4457
1da177e4
LT		 4458/**
4459 * ipr_slave_destroy - Unconfigure a SCSI device
4460 * @sdev: scsi device struct
4461 *
4462 * Return value:
4463 * nothing
4464 **/
4465static void ipr_slave_destroy(struct scsi_device *sdev)
4466{
4467 struct ipr_resource_entry *res;
4468 struct ipr_ioa_cfg *ioa_cfg;
4469 unsigned long lock_flags = 0;
4470
4471 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4472
4473 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4474 res = (struct ipr_resource_entry *) sdev->hostdata;
4475 if (res) {
35a39691 4476 if (res->sata_port)
3e4ec344 4477 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4478 sdev->hostdata = NULL;
4479 res->sdev = NULL;
35a39691 4480 res->sata_port = NULL;
1da177e4
LT		 4481 }
4482 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4483}
4484
4485/**
4486 * ipr_slave_configure - Configure a SCSI device
4487 * @sdev: scsi device struct
4488 *
4489 * This function configures the specified scsi device.
4490 *
4491 * Return value:
4492 * 0 on success
4493 **/
4494static int ipr_slave_configure(struct scsi_device *sdev)
4495{
4496 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4497 struct ipr_resource_entry *res;
dd406ef8 4498 struct ata_port *ap = NULL;
1da177e4 4499 unsigned long lock_flags = 0;
3e7ebdfa 4500 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4501
4502 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4503 res = sdev->hostdata;
4504 if (res) {
4505 if (ipr_is_af_dasd_device(res))
4506 sdev->type = TYPE_RAID;
0726ce26 4507 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4508 sdev->scsi_level = 4;
0726ce26
BK		 4509 sdev->no_uld_attach = 1;
4510 }
1da177e4 4511 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4512 blk_queue_rq_timeout(sdev->request_queue,
4513 IPR_VSET_RW_TIMEOUT);
086fa5ff 4514 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4515 }
dd406ef8
BK		 4516 if (ipr_is_gata(res) && res->sata_port)
4517 ap = res->sata_port->ap;
4518 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4519
4520 if (ap) {
35a39691 4521 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8
BK		 4522 ata_sas_slave_configure(sdev, ap);
4523 } else
35a39691 4524 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3e7ebdfa
WB		 4525 if (ioa_cfg->sis64)
4526 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
5adcbeb3
WB		 4527 ipr_format_res_path(res->res_path, buffer,
4528 sizeof(buffer)));
dd406ef8 4529 return 0;
1da177e4
LT		 4530 }
4531 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4532 return 0;
4533}
4534
35a39691
BK		 4535/**
4536 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4537 * @sdev: scsi device struct
4538 *
4539 * This function initializes an ATA port so that future commands
4540 * sent through queuecommand will work.
4541 *
4542 * Return value:
4543 * 0 on success
4544 **/
4545static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4546{
4547 struct ipr_sata_port *sata_port = NULL;
4548 int rc = -ENXIO;
4549
4550 ENTER;
4551 if (sdev->sdev_target)
4552 sata_port = sdev->sdev_target->hostdata;
4553 if (sata_port)
4554 rc = ata_sas_port_init(sata_port->ap);
4555 if (rc)
4556 ipr_slave_destroy(sdev);
4557
4558 LEAVE;
4559 return rc;
4560}
4561
1da177e4
LT		 4562/**
4563 * ipr_slave_alloc - Prepare for commands to a device.
4564 * @sdev: scsi device struct
4565 *
4566 * This function saves a pointer to the resource entry
4567 * in the scsi device struct if the device exists. We
4568 * can then use this pointer in ipr_queuecommand when
4569 * handling new commands.
4570 *
4571 * Return value:
692aebfc 4572 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4573 **/
4574static int ipr_slave_alloc(struct scsi_device *sdev)
4575{
4576 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4577 struct ipr_resource_entry *res;
4578 unsigned long lock_flags;
692aebfc 4579 int rc = -ENXIO;
1da177e4
LT		 4580
4581 sdev->hostdata = NULL;
4582
4583 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4584
35a39691
BK		 4585 res = ipr_find_sdev(sdev);
4586 if (res) {
4587 res->sdev = sdev;
4588 res->add_to_ml = 0;
4589 res->in_erp = 0;
4590 sdev->hostdata = res;
4591 if (!ipr_is_naca_model(res))
4592 res->needs_sync_complete = 1;
4593 rc = 0;
4594 if (ipr_is_gata(res)) {
4595 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4596 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4597 }
4598 }
4599
4600 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4601
692aebfc 4602 return rc;
1da177e4
LT		 4603}
4604
4605/**
4606 * ipr_eh_host_reset - Reset the host adapter
4607 * @scsi_cmd: scsi command struct
4608 *
4609 * Return value:
4610 * SUCCESS / FAILED
4611 **/
df0ae249 4612static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4613{
4614 struct ipr_ioa_cfg *ioa_cfg;
4615 int rc;
4616
4617 ENTER;
4618 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4619
a92fa25c
KSS		 4620 if (!ioa_cfg->in_reset_reload) {
4621 dev_err(&ioa_cfg->pdev->dev,
4622 "Adapter being reset as a result of error recovery.\n");
1da177e4 4623
a92fa25c
KSS		 4624 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4625 ioa_cfg->sdt_state = GET_DUMP;
4626 }
1da177e4
LT		 4627
4628 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4629
4630 LEAVE;
4631 return rc;
4632}
4633
df0ae249
JG		 4634static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4635{
4636 int rc;
4637
4638 spin_lock_irq(cmd->device->host->host_lock);
4639 rc = __ipr_eh_host_reset(cmd);
4640 spin_unlock_irq(cmd->device->host->host_lock);
4641
4642 return rc;
4643}
4644
c6513096
BK		 4645/**
4646 * ipr_device_reset - Reset the device
4647 * @ioa_cfg: ioa config struct
4648 * @res: resource entry struct
4649 *
4650 * This function issues a device reset to the affected device.
4651 * If the device is a SCSI device, a LUN reset will be sent
4652 * to the device first. If that does not work, a target reset
35a39691
BK		 4653 * will be sent. If the device is a SATA device, a PHY reset will
4654 * be sent.
c6513096
BK		 4655 *
4656 * Return value:
4657 * 0 on success / non-zero on failure
4658 **/
4659static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4660 struct ipr_resource_entry *res)
4661{
4662 struct ipr_cmnd *ipr_cmd;
4663 struct ipr_ioarcb *ioarcb;
4664 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4665 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4666 u32 ioasc;
4667
4668 ENTER;
4669 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4670 ioarcb = &ipr_cmd->ioarcb;
4671 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4672
4673 if (ipr_cmd->ioa_cfg->sis64) {
4674 regs = &ipr_cmd->i.ata_ioadl.regs;
4675 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4676 } else
4677 regs = &ioarcb->u.add_data.u.regs;
c6513096 4678
3e7ebdfa 4679 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4680 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4681 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4682 if (ipr_is_gata(res)) {
4683 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4684 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4685 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4686 }
c6513096
BK		 4687
4688 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4689 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
c6513096 4690 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
96d21f00
WB		 4691 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4692 if (ipr_cmd->ioa_cfg->sis64)
4693 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4694 sizeof(struct ipr_ioasa_gata));
4695 else
4696 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4697 sizeof(struct ipr_ioasa_gata));
4698 }
c6513096
BK		 4699
4700 LEAVE;
4701 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4702}
4703
35a39691
BK		 4704/**
4705 * ipr_sata_reset - Reset the SATA port
cc0680a5 4706 * @link: SATA link to reset
35a39691
BK		 4707 * @classes: class of the attached device
4708 *
cc0680a5 4709 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4710 *
4711 * Return value:
4712 * 0 on success / non-zero on failure
4713 **/
cc0680a5 4714static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4715 unsigned long deadline)
35a39691 4716{
cc0680a5 4717 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4718 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4719 struct ipr_resource_entry *res;
4720 unsigned long lock_flags = 0;
4721 int rc = -ENXIO;
4722
4723 ENTER;
4724 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
73d98ff0
BK		 4725 while(ioa_cfg->in_reset_reload) {
4726 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4727 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4728 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4729 }
4730
35a39691
BK		 4731 res = sata_port->res;
4732 if (res) {
4733 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4734 *classes = res->ata_class;
35a39691
BK		 4735 }
4736
4737 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4738 LEAVE;
4739 return rc;
4740}
4741
1da177e4
LT		 4742/**
4743 * ipr_eh_dev_reset - Reset the device
4744 * @scsi_cmd: scsi command struct
4745 *
4746 * This function issues a device reset to the affected device.
4747 * A LUN reset will be sent to the device first. If that does
4748 * not work, a target reset will be sent.
4749 *
4750 * Return value:
4751 * SUCCESS / FAILED
4752 **/
94d0e7b8 4753static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4754{
4755 struct ipr_cmnd *ipr_cmd;
4756 struct ipr_ioa_cfg *ioa_cfg;
4757 struct ipr_resource_entry *res;
35a39691
BK		 4758 struct ata_port *ap;
4759 int rc = 0;
1da177e4
LT		 4760
4761 ENTER;
4762 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4763 res = scsi_cmd->device->hostdata;
4764
eeb88307 4765 if (!res)
1da177e4
LT		 4766 return FAILED;
4767
4768 /*
4769 * If we are currently going through reset/reload, return failed. This will force the
4770 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4771 * reset to complete
4772 */
4773 if (ioa_cfg->in_reset_reload)
4774 return FAILED;
4775 if (ioa_cfg->ioa_is_dead)
4776 return FAILED;
4777
4778 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4779 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
1da177e4
LT		 4780 if (ipr_cmd->scsi_cmd)
4781 ipr_cmd->done = ipr_scsi_eh_done;
24d6f2b5
BK		 4782 if (ipr_cmd->qc)
4783 ipr_cmd->done = ipr_sata_eh_done;
7402ecef
BK		 4784 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4785 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4786 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4787 }
1da177e4
LT		 4788 }
4789 }
4790
4791 res->resetting_device = 1;
fb3ed3cb 4792 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 4793
4794 if (ipr_is_gata(res) && res->sata_port) {
4795 ap = res->sata_port->ap;
4796 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 4797 ata_std_error_handler(ap);
35a39691 4798 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26
BK		 4799
4800 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4801 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5af23d26
BK		 4802 rc = -EIO;
4803 break;
4804 }
4805 }
35a39691
BK		 4806 } else
4807 rc = ipr_device_reset(ioa_cfg, res);
1da177e4
LT		 4808 res->resetting_device = 0;
4809
1da177e4 4810 LEAVE;
c6513096 4811 return (rc ? FAILED : SUCCESS);
1da177e4
LT		 4812}
4813
94d0e7b8
JG		 4814static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4815{
4816 int rc;
4817
4818 spin_lock_irq(cmd->device->host->host_lock);
4819 rc = __ipr_eh_dev_reset(cmd);
4820 spin_unlock_irq(cmd->device->host->host_lock);
4821
4822 return rc;
4823}
4824
1da177e4
LT		 4825/**
4826 * ipr_bus_reset_done - Op done function for bus reset.
4827 * @ipr_cmd: ipr command struct
4828 *
4829 * This function is the op done function for a bus reset
4830 *
4831 * Return value:
4832 * none
4833 **/
4834static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4835{
4836 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4837 struct ipr_resource_entry *res;
4838
4839 ENTER;
3e7ebdfa
WB		 4840 if (!ioa_cfg->sis64)
4841 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4842 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4843 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4844 break;
4845 }
1da177e4 4846 }
1da177e4
LT		 4847
4848 /*
4849 * If abort has not completed, indicate the reset has, else call the
4850 * abort's done function to wake the sleeping eh thread
4851 */
4852 if (ipr_cmd->sibling->sibling)
4853 ipr_cmd->sibling->sibling = NULL;
4854 else
4855 ipr_cmd->sibling->done(ipr_cmd->sibling);
4856
4857 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4858 LEAVE;
4859}
4860
4861/**
4862 * ipr_abort_timeout - An abort task has timed out
4863 * @ipr_cmd: ipr command struct
4864 *
4865 * This function handles when an abort task times out. If this
4866 * happens we issue a bus reset since we have resources tied
4867 * up that must be freed before returning to the midlayer.
4868 *
4869 * Return value:
4870 * none
4871 **/
4872static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4873{
4874 struct ipr_cmnd *reset_cmd;
4875 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4876 struct ipr_cmd_pkt *cmd_pkt;
4877 unsigned long lock_flags = 0;
4878
4879 ENTER;
4880 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4881 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4882 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4883 return;
4884 }
4885
fb3ed3cb 4886 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 4887 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4888 ipr_cmd->sibling = reset_cmd;
4889 reset_cmd->sibling = ipr_cmd;
4890 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4891 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4892 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4893 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4894 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4895
4896 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4897 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4898 LEAVE;
4899}
4900
4901/**
4902 * ipr_cancel_op - Cancel specified op
4903 * @scsi_cmd: scsi command struct
4904 *
4905 * This function cancels specified op.
4906 *
4907 * Return value:
4908 * SUCCESS / FAILED
4909 **/
4910static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4911{
4912 struct ipr_cmnd *ipr_cmd;
4913 struct ipr_ioa_cfg *ioa_cfg;
4914 struct ipr_resource_entry *res;
4915 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 4916 u32 ioasc, int_reg;
1da177e4
LT		 4917 int op_found = 0;
4918
4919 ENTER;
4920 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4921 res = scsi_cmd->device->hostdata;
4922
8fa728a2
JG		 4923 /* If we are currently going through reset/reload, return failed.
4924 * This will force the mid-layer to call ipr_eh_host_reset,
4925 * which will then go to sleep and wait for the reset to complete
4926 */
4927 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4928 return FAILED;
a92fa25c
KSS		 4929 if (!res)
4930 return FAILED;
4931
4932 /*
4933 * If we are aborting a timed out op, chances are that the timeout was caused
4934 * by a still not detected EEH error. In such cases, reading a register will
4935 * trigger the EEH recovery infrastructure.
4936 */
4937 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4938
4939 if (!ipr_is_gscsi(res))
1da177e4
LT		 4940 return FAILED;
4941
4942 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4943 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4944 ipr_cmd->done = ipr_scsi_eh_done;
4945 op_found = 1;
4946 break;
4947 }
4948 }
4949
4950 if (!op_found)
4951 return SUCCESS;
4952
4953 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 4954 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 4955 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4956 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4957 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4958 ipr_cmd->u.sdev = scsi_cmd->device;
4959
fb3ed3cb
BK		 4960 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4961 scsi_cmd->cmnd[0]);
1da177e4 4962 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 4963 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 4964
4965 /*
4966 * If the abort task timed out and we sent a bus reset, we will get
4967 * one the following responses to the abort
4968 */
4969 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4970 ioasc = 0;
4971 ipr_trace;
4972 }
4973
4974 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
ee0a90fa
BK		 4975 if (!ipr_is_naca_model(res))
4976 res->needs_sync_complete = 1;
1da177e4
LT		 4977
4978 LEAVE;
4979 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4980}
4981
4982/**
4983 * ipr_eh_abort - Abort a single op
4984 * @scsi_cmd: scsi command struct
4985 *
4986 * Return value:
4987 * SUCCESS / FAILED
4988 **/
4989static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4990{
8fa728a2
JG		 4991 unsigned long flags;
4992 int rc;
1da177e4
LT		 4993
4994 ENTER;
1da177e4 4995
8fa728a2
JG		 4996 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4997 rc = ipr_cancel_op(scsi_cmd);
4998 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 4999
5000 LEAVE;
8fa728a2 5001 return rc;
1da177e4
LT		 5002}
5003
5004/**
5005 * ipr_handle_other_interrupt - Handle "other" interrupts
5006 * @ioa_cfg: ioa config struct
634651fa 5007 * @int_reg: interrupt register
1da177e4
LT		 5008 *
5009 * Return value:
5010 * IRQ_NONE / IRQ_HANDLED
5011 **/
634651fa 5012static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5013 u32 int_reg)
1da177e4
LT		 5014{
5015 irqreturn_t rc = IRQ_HANDLED;
7dacb64f
WB		 5016 u32 int_mask_reg;
5017
5018 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5019 int_reg &= ~int_mask_reg;
5020
5021 /* If an interrupt on the adapter did not occur, ignore it.
5022 * Or in the case of SIS 64, check for a stage change interrupt.
5023 */
5024 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5025 if (ioa_cfg->sis64) {
5026 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5027 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5028 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5029
5030 /* clear stage change */
5031 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5032 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5033 list_del(&ioa_cfg->reset_cmd->queue);
5034 del_timer(&ioa_cfg->reset_cmd->timer);
5035 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5036 return IRQ_HANDLED;
5037 }
5038 }
5039
5040 return IRQ_NONE;
5041 }
1da177e4
LT		 5042
5043 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5044 /* Mask the interrupt */
5045 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5046
5047 /* Clear the interrupt */
5048 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5049 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5050
5051 list_del(&ioa_cfg->reset_cmd->queue);
5052 del_timer(&ioa_cfg->reset_cmd->timer);
5053 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5054 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5055 if (ioa_cfg->clear_isr) {
5056 if (ipr_debug && printk_ratelimit())
5057 dev_err(&ioa_cfg->pdev->dev,
5058 "Spurious interrupt detected. 0x%08X\n", int_reg);
5059 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5060 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5061 return IRQ_NONE;
5062 }
1da177e4
LT		 5063 } else {
5064 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5065 ioa_cfg->ioa_unit_checked = 1;
5066 else
5067 dev_err(&ioa_cfg->pdev->dev,
5068 "Permanent IOA failure. 0x%08X\n", int_reg);
5069
5070 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5071 ioa_cfg->sdt_state = GET_DUMP;
5072
5073 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5074 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5075 }
5076
5077 return rc;
5078}
5079
3feeb89d
WB		 5080/**
5081 * ipr_isr_eh - Interrupt service routine error handler
5082 * @ioa_cfg: ioa config struct
5083 * @msg: message to log
5084 *
5085 * Return value:
5086 * none
5087 **/
5088static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
5089{
5090 ioa_cfg->errors_logged++;
5091 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5092
5093 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5094 ioa_cfg->sdt_state = GET_DUMP;
5095
5096 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5097}
5098
1da177e4
LT		 5099/**
5100 * ipr_isr - Interrupt service routine
5101 * @irq: irq number
5102 * @devp: pointer to ioa config struct
1da177e4
LT		 5103 *
5104 * Return value:
5105 * IRQ_NONE / IRQ_HANDLED
5106 **/
7d12e780 5107static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4
LT		 5108{
5109 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5110 unsigned long lock_flags = 0;
7dacb64f 5111 u32 int_reg = 0;
1da177e4
LT		 5112 u32 ioasc;
5113 u16 cmd_index;
3feeb89d 5114 int num_hrrq = 0;
7dacb64f 5115 int irq_none = 0;
1da177e4
LT		 5116 struct ipr_cmnd *ipr_cmd;
5117 irqreturn_t rc = IRQ_NONE;
5118
5119 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5120
5121 /* If interrupts are disabled, ignore the interrupt */
5122 if (!ioa_cfg->allow_interrupts) {
5123 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5124 return IRQ_NONE;
5125 }
5126
1da177e4
LT		 5127 while (1) {
5128 ipr_cmd = NULL;
5129
5130 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5131 ioa_cfg->toggle_bit) {
5132
5133 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5134 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5135
5136 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
3feeb89d 5137 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
1da177e4
LT		 5138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5139 return IRQ_HANDLED;
5140 }
5141
5142 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5143
96d21f00 5144 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5145
5146 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5147
5148 list_del(&ipr_cmd->queue);
5149 del_timer(&ipr_cmd->timer);
5150 ipr_cmd->done(ipr_cmd);
5151
5152 rc = IRQ_HANDLED;
5153
5154 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5155 ioa_cfg->hrrq_curr++;
5156 } else {
5157 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5158 ioa_cfg->toggle_bit ^= 1u;
5159 }
5160 }
5161
7dd21308
BK		 5162 if (ipr_cmd && !ioa_cfg->clear_isr)
5163 break;
5164
1da177e4
LT		 5165 if (ipr_cmd != NULL) {
5166 /* Clear the PCI interrupt */
a5442ba4 5167 num_hrrq = 0;
3feeb89d 5168 do {
214777ba 5169 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5170 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d
WB		 5171 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5172 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5173
7dacb64f
WB		 5174 } else if (rc == IRQ_NONE && irq_none == 0) {
5175 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5176 irq_none++;
a5442ba4
WB		 5177 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5178 int_reg & IPR_PCII_HRRQ_UPDATED) {
5179 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5180 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5181 return IRQ_HANDLED;
1da177e4
LT		 5182 } else
5183 break;
5184 }
5185
5186 if (unlikely(rc == IRQ_NONE))
634651fa 5187 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4
LT		 5188
5189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5190 return rc;
5191}
5192
a32c055f
WB		 5193/**
5194 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5195 * @ioa_cfg: ioa config struct
5196 * @ipr_cmd: ipr command struct
5197 *
5198 * Return value:
5199 * 0 on success / -1 on failure
5200 **/
5201static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5202 struct ipr_cmnd *ipr_cmd)
5203{
5204 int i, nseg;
5205 struct scatterlist *sg;
5206 u32 length;
5207 u32 ioadl_flags = 0;
5208 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5209 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5210 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5211
5212 length = scsi_bufflen(scsi_cmd);
5213 if (!length)
5214 return 0;
5215
5216 nseg = scsi_dma_map(scsi_cmd);
5217 if (nseg < 0) {
51f52a47
AB		 5218 if (printk_ratelimit())
5219 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
a32c055f
WB		 5220 return -1;
5221 }
5222
5223 ipr_cmd->dma_use_sg = nseg;
5224
438b0331 5225 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5226 ioarcb->ioadl_len =
5227 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5228
a32c055f
WB		 5229 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5230 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5231 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5232 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5233 ioadl_flags = IPR_IOADL_FLAGS_READ;
5234
5235 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5236 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5237 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5238 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5239 }
5240
5241 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5242 return 0;
5243}
5244
1da177e4
LT		 5245/**
5246 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5247 * @ioa_cfg: ioa config struct
5248 * @ipr_cmd: ipr command struct
5249 *
5250 * Return value:
5251 * 0 on success / -1 on failure
5252 **/
5253static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5254 struct ipr_cmnd *ipr_cmd)
5255{
63015bc9
FT		 5256 int i, nseg;
5257 struct scatterlist *sg;
1da177e4
LT		 5258 u32 length;
5259 u32 ioadl_flags = 0;
5260 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5261 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5262 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5263
63015bc9
FT		 5264 length = scsi_bufflen(scsi_cmd);
5265 if (!length)
1da177e4
LT		 5266 return 0;
5267
63015bc9
FT		 5268 nseg = scsi_dma_map(scsi_cmd);
5269 if (nseg < 0) {
5270 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5271 return -1;
5272 }
51b1c7e1 5273
63015bc9
FT		 5274 ipr_cmd->dma_use_sg = nseg;
5275
5276 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5277 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5278 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5279 ioarcb->data_transfer_length = cpu_to_be32(length);
5280 ioarcb->ioadl_len =
63015bc9
FT		 5281 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5282 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5283 ioadl_flags = IPR_IOADL_FLAGS_READ;
5284 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5285 ioarcb->read_ioadl_len =
5286 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5287 }
1da177e4 5288
a32c055f
WB		 5289 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5290 ioadl = ioarcb->u.add_data.u.ioadl;
5291 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5292 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5293 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5294 }
1da177e4 5295
63015bc9
FT		 5296 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5297 ioadl[i].flags_and_data_len =
5298 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5299 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5300 }
5301
63015bc9
FT		 5302 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5303 return 0;
1da177e4
LT		 5304}
5305
5306/**
5307 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5308 * @scsi_cmd: scsi command struct
5309 *
5310 * Return value:
5311 * task attributes
5312 **/
5313static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5314{
5315 u8 tag[2];
5316 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5317
5318 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5319 switch (tag[0]) {
5320 case MSG_SIMPLE_TAG:
5321 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5322 break;
5323 case MSG_HEAD_TAG:
5324 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5325 break;
5326 case MSG_ORDERED_TAG:
5327 rc = IPR_FLAGS_LO_ORDERED_TASK;
5328 break;
5329 };
5330 }
5331
5332 return rc;
5333}
5334
5335/**
5336 * ipr_erp_done - Process completion of ERP for a device
5337 * @ipr_cmd: ipr command struct
5338 *
5339 * This function copies the sense buffer into the scsi_cmd
5340 * struct and pushes the scsi_done function.
5341 *
5342 * Return value:
5343 * nothing
5344 **/
5345static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5346{
5347 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5348 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5349 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 5350 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5351
5352 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5353 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5354 scmd_printk(KERN_ERR, scsi_cmd,
5355 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5356 } else {
5357 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5358 SCSI_SENSE_BUFFERSIZE);
5359 }
5360
5361 if (res) {
ee0a90fa
BK		 5362 if (!ipr_is_naca_model(res))
5363 res->needs_sync_complete = 1;
1da177e4
LT		 5364 res->in_erp = 0;
5365 }
63015bc9 5366 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5367 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5368 scsi_cmd->scsi_done(scsi_cmd);
5369}
5370
5371/**
5372 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5373 * @ipr_cmd: ipr command struct
5374 *
5375 * Return value:
5376 * none
5377 **/
5378static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5379{
51b1c7e1 5380 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5381 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5382 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5383
5384 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5385 ioarcb->data_transfer_length = 0;
1da177e4 5386 ioarcb->read_data_transfer_length = 0;
a32c055f 5387 ioarcb->ioadl_len = 0;
1da177e4 5388 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5389 ioasa->hdr.ioasc = 0;
5390 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5391
5392 if (ipr_cmd->ioa_cfg->sis64)
5393 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5394 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5395 else {
5396 ioarcb->write_ioadl_addr =
5397 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5398 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5399 }
1da177e4
LT		 5400}
5401
5402/**
5403 * ipr_erp_request_sense - Send request sense to a device
5404 * @ipr_cmd: ipr command struct
5405 *
5406 * This function sends a request sense to a device as a result
5407 * of a check condition.
5408 *
5409 * Return value:
5410 * nothing
5411 **/
5412static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5413{
5414 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5415 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5416
5417 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5418 ipr_erp_done(ipr_cmd);
5419 return;
5420 }
5421
5422 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5423
5424 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5425 cmd_pkt->cdb[0] = REQUEST_SENSE;
5426 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5427 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5428 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5429 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5430
a32c055f
WB		 5431 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5432 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5433
5434 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5435 IPR_REQUEST_SENSE_TIMEOUT * 2);
5436}
5437
5438/**
5439 * ipr_erp_cancel_all - Send cancel all to a device
5440 * @ipr_cmd: ipr command struct
5441 *
5442 * This function sends a cancel all to a device to clear the
5443 * queue. If we are running TCQ on the device, QERR is set to 1,
5444 * which means all outstanding ops have been dropped on the floor.
5445 * Cancel all will return them to us.
5446 *
5447 * Return value:
5448 * nothing
5449 **/
5450static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5451{
5452 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5453 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5454 struct ipr_cmd_pkt *cmd_pkt;
5455
5456 res->in_erp = 1;
5457
5458 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5459
5460 if (!scsi_get_tag_type(scsi_cmd->device)) {
5461 ipr_erp_request_sense(ipr_cmd);
5462 return;
5463 }
5464
5465 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5466 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5467 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5468
5469 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5470 IPR_CANCEL_ALL_TIMEOUT);
5471}
5472
5473/**
5474 * ipr_dump_ioasa - Dump contents of IOASA
5475 * @ioa_cfg: ioa config struct
5476 * @ipr_cmd: ipr command struct
fe964d0a 5477 * @res: resource entry struct
1da177e4
LT		 5478 *
5479 * This function is invoked by the interrupt handler when ops
5480 * fail. It will log the IOASA if appropriate. Only called
5481 * for GPDD ops.
5482 *
5483 * Return value:
5484 * none
5485 **/
5486static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5487 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5488{
5489 int i;
5490 u16 data_len;
b0692dd4 5491 u32 ioasc, fd_ioasc;
96d21f00 5492 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5493 __be32 *ioasa_data = (__be32 *)ioasa;
5494 int error_index;
5495
96d21f00
WB		 5496 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5497 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5498
5499 if (0 == ioasc)
5500 return;
5501
5502 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5503 return;
5504
b0692dd4
BK		 5505 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5506 error_index = ipr_get_error(fd_ioasc);
5507 else
5508 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5509
5510 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5511 /* Don't log an error if the IOA already logged one */
96d21f00 5512 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5513 return;
5514
cc9bd5d4
BK		 5515 if (!ipr_is_gscsi(res))
5516 return;
5517
1da177e4
LT		 5518 if (ipr_error_table[error_index].log_ioasa == 0)
5519 return;
5520 }
5521
fe964d0a 5522 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5523
96d21f00
WB		 5524 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5525 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5526 data_len = sizeof(struct ipr_ioasa64);
5527 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5528 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5529
5530 ipr_err("IOASA Dump:\n");
5531
5532 for (i = 0; i < data_len / 4; i += 4) {
5533 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5534 be32_to_cpu(ioasa_data[i]),
5535 be32_to_cpu(ioasa_data[i+1]),
5536 be32_to_cpu(ioasa_data[i+2]),
5537 be32_to_cpu(ioasa_data[i+3]));
5538 }
5539}
5540
5541/**
5542 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5543 * @ioasa: IOASA
5544 * @sense_buf: sense data buffer
5545 *
5546 * Return value:
5547 * none
5548 **/
5549static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5550{
5551 u32 failing_lba;
5552 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5553 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5554 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5555 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5556
5557 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5558
5559 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5560 return;
5561
5562 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5563
5564 if (ipr_is_vset_device(res) &&
5565 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5566 ioasa->u.vset.failing_lba_hi != 0) {
5567 sense_buf[0] = 0x72;
5568 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5569 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5570 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5571
5572 sense_buf[7] = 12;
5573 sense_buf[8] = 0;
5574 sense_buf[9] = 0x0A;
5575 sense_buf[10] = 0x80;
5576
5577 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5578
5579 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5580 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5581 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5582 sense_buf[15] = failing_lba & 0x000000ff;
5583
5584 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5585
5586 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5587 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5588 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5589 sense_buf[19] = failing_lba & 0x000000ff;
5590 } else {
5591 sense_buf[0] = 0x70;
5592 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5593 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5594 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5595
5596 /* Illegal request */
5597 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5598 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5599 sense_buf[7] = 10; /* additional length */
5600
5601 /* IOARCB was in error */
5602 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5603 sense_buf[15] = 0xC0;
5604 else /* Parameter data was invalid */
5605 sense_buf[15] = 0x80;
5606
5607 sense_buf[16] =
5608 ((IPR_FIELD_POINTER_MASK &
96d21f00 5609 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5610 sense_buf[17] =
5611 (IPR_FIELD_POINTER_MASK &
96d21f00 5612 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5613 } else {
5614 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5615 if (ipr_is_vset_device(res))
5616 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5617 else
5618 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5619
5620 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5621 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5622 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5623 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5624 sense_buf[6] = failing_lba & 0x000000ff;
5625 }
5626
5627 sense_buf[7] = 6; /* additional length */
5628 }
5629 }
5630}
5631
ee0a90fa
BK		 5632/**
5633 * ipr_get_autosense - Copy autosense data to sense buffer
5634 * @ipr_cmd: ipr command struct
5635 *
5636 * This function copies the autosense buffer to the buffer
5637 * in the scsi_cmd, if there is autosense available.
5638 *
5639 * Return value:
5640 * 1 if autosense was available / 0 if not
5641 **/
5642static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5643{
96d21f00
WB		 5644 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5645 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 5646
96d21f00 5647 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 5648 return 0;
5649
96d21f00
WB		 5650 if (ipr_cmd->ioa_cfg->sis64)
5651 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5652 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5653 SCSI_SENSE_BUFFERSIZE));
5654 else
5655 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5656 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5657 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 5658 return 1;
5659}
5660
1da177e4
LT		 5661/**
5662 * ipr_erp_start - Process an error response for a SCSI op
5663 * @ioa_cfg: ioa config struct
5664 * @ipr_cmd: ipr command struct
5665 *
5666 * This function determines whether or not to initiate ERP
5667 * on the affected device.
5668 *
5669 * Return value:
5670 * nothing
5671 **/
5672static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5673 struct ipr_cmnd *ipr_cmd)
5674{
5675 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5676 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5677 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 5678 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5679
5680 if (!res) {
5681 ipr_scsi_eh_done(ipr_cmd);
5682 return;
5683 }
5684
8a048994 5685 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 5686 ipr_gen_sense(ipr_cmd);
5687
cc9bd5d4
BK		 5688 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5689
8a048994 5690 switch (masked_ioasc) {
1da177e4 5691 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 5692 if (ipr_is_naca_model(res))
5693 scsi_cmd->result |= (DID_ABORT << 16);
5694 else
5695 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 5696 break;
5697 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 5698 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 5699 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5700 break;
5701 case IPR_IOASC_HW_SEL_TIMEOUT:
5702 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 5703 if (!ipr_is_naca_model(res))
5704 res->needs_sync_complete = 1;
1da177e4
LT		 5705 break;
5706 case IPR_IOASC_SYNC_REQUIRED:
5707 if (!res->in_erp)
5708 res->needs_sync_complete = 1;
5709 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5710 break;
5711 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 5712 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 5713 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5714 break;
5715 case IPR_IOASC_BUS_WAS_RESET:
5716 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5717 /*
5718 * Report the bus reset and ask for a retry. The device
5719 * will give CC/UA the next command.
5720 */
5721 if (!res->resetting_device)
5722 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5723 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 5724 if (!ipr_is_naca_model(res))
5725 res->needs_sync_complete = 1;
1da177e4
LT		 5726 break;
5727 case IPR_IOASC_HW_DEV_BUS_STATUS:
5728 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5729 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 5730 if (!ipr_get_autosense(ipr_cmd)) {
5731 if (!ipr_is_naca_model(res)) {
5732 ipr_erp_cancel_all(ipr_cmd);
5733 return;
5734 }
5735 }
1da177e4 5736 }
ee0a90fa
BK		 5737 if (!ipr_is_naca_model(res))
5738 res->needs_sync_complete = 1;
1da177e4
LT		 5739 break;
5740 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5741 break;
5742 default:
5b7304fb
BK		 5743 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5744 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 5745 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 5746 res->needs_sync_complete = 1;
5747 break;
5748 }
5749
63015bc9 5750 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5751 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5752 scsi_cmd->scsi_done(scsi_cmd);
5753}
5754
5755/**
5756 * ipr_scsi_done - mid-layer done function
5757 * @ipr_cmd: ipr command struct
5758 *
5759 * This function is invoked by the interrupt handler for
5760 * ops generated by the SCSI mid-layer
5761 *
5762 * Return value:
5763 * none
5764 **/
5765static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5766{
5767 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5768 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 5769 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4 5770
96d21f00 5771 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 5772
5773 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
63015bc9 5774 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5775 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5776 scsi_cmd->scsi_done(scsi_cmd);
5777 } else
5778 ipr_erp_start(ioa_cfg, ipr_cmd);
5779}
5780
1da177e4
LT		 5781/**
5782 * ipr_queuecommand - Queue a mid-layer request
5783 * @scsi_cmd: scsi command struct
5784 * @done: done function
5785 *
5786 * This function queues a request generated by the mid-layer.
5787 *
5788 * Return value:
5789 * 0 on success
5790 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5791 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5792 **/
f281233d 5793static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
1da177e4
LT		 5794 void (*done) (struct scsi_cmnd *))
5795{
5796 struct ipr_ioa_cfg *ioa_cfg;
5797 struct ipr_resource_entry *res;
5798 struct ipr_ioarcb *ioarcb;
5799 struct ipr_cmnd *ipr_cmd;
5800 int rc = 0;
5801
5802 scsi_cmd->scsi_done = done;
5803 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5804 res = scsi_cmd->device->hostdata;
5805 scsi_cmd->result = (DID_OK << 16);
5806
5807 /*
5808 * We are currently blocking all devices due to a host reset
5809 * We have told the host to stop giving us new requests, but
5810 * ERP ops don't count. FIXME
5811 */
5812 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5813 return SCSI_MLQUEUE_HOST_BUSY;
5814
5815 /*
5816 * FIXME - Create scsi_set_host_offline interface
5817 * and the ioa_is_dead check can be removed
5818 */
5819 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5820 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5821 scsi_cmd->result = (DID_NO_CONNECT << 16);
5822 scsi_cmd->scsi_done(scsi_cmd);
5823 return 0;
5824 }
5825
35a39691 5826 if (ipr_is_gata(res) && res->sata_port)
b27dcfb0 5827 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
35a39691 5828
1da177e4
LT		 5829 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5830 ioarcb = &ipr_cmd->ioarcb;
5831 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5832
5833 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5834 ipr_cmd->scsi_cmd = scsi_cmd;
3e7ebdfa 5835 ioarcb->res_handle = res->res_handle;
1da177e4 5836 ipr_cmd->done = ipr_scsi_done;
3e7ebdfa 5837 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
1da177e4
LT		 5838
5839 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5840 if (scsi_cmd->underflow == 0)
5841 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5842
5843 if (res->needs_sync_complete) {
5844 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5845 res->needs_sync_complete = 0;
5846 }
5847
5848 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
ab6c10b1
WB		 5849 if (ipr_is_gscsi(res))
5850 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
1da177e4
LT		 5851 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5852 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5853 }
5854
5855 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5856 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5857 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5858
a32c055f
WB		 5859 if (likely(rc == 0)) {
5860 if (ioa_cfg->sis64)
5861 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5862 else
5863 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5864 }
1da177e4
LT		 5865
5866 if (likely(rc == 0)) {
5867 mb();
a32c055f 5868 ipr_send_command(ipr_cmd);
1da177e4
LT		 5869 } else {
5870 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5871 return SCSI_MLQUEUE_HOST_BUSY;
5872 }
5873
5874 return 0;
5875}
5876
f281233d
JG		 5877static DEF_SCSI_QCMD(ipr_queuecommand)
5878
35a39691
BK		 5879/**
5880 * ipr_ioctl - IOCTL handler
5881 * @sdev: scsi device struct
5882 * @cmd: IOCTL cmd
5883 * @arg: IOCTL arg
5884 *
5885 * Return value:
5886 * 0 on success / other on failure
5887 **/
bd705f2d 5888static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 5889{
5890 struct ipr_resource_entry *res;
5891
5892 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 5893 if (res && ipr_is_gata(res)) {
5894 if (cmd == HDIO_GET_IDENTITY)
5895 return -ENOTTY;
94be9a58 5896 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 5897 }
35a39691
BK		 5898
5899 return -EINVAL;
5900}
5901
1da177e4
LT		 5902/**
5903 * ipr_info - Get information about the card/driver
5904 * @scsi_host: scsi host struct
5905 *
5906 * Return value:
5907 * pointer to buffer with description string
5908 **/
5909static const char * ipr_ioa_info(struct Scsi_Host *host)
5910{
5911 static char buffer[512];
5912 struct ipr_ioa_cfg *ioa_cfg;
5913 unsigned long lock_flags = 0;
5914
5915 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5916
5917 spin_lock_irqsave(host->host_lock, lock_flags);
5918 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5919 spin_unlock_irqrestore(host->host_lock, lock_flags);
5920
5921 return buffer;
5922}
5923
5924static struct scsi_host_template driver_template = {
5925 .module = THIS_MODULE,
5926 .name = "IPR",
5927 .info = ipr_ioa_info,
35a39691 5928 .ioctl = ipr_ioctl,
1da177e4
LT		 5929 .queuecommand = ipr_queuecommand,
5930 .eh_abort_handler = ipr_eh_abort,
5931 .eh_device_reset_handler = ipr_eh_dev_reset,
5932 .eh_host_reset_handler = ipr_eh_host_reset,
5933 .slave_alloc = ipr_slave_alloc,
5934 .slave_configure = ipr_slave_configure,
5935 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 5936 .target_alloc = ipr_target_alloc,
5937 .target_destroy = ipr_target_destroy,
1da177e4
LT		 5938 .change_queue_depth = ipr_change_queue_depth,
5939 .change_queue_type = ipr_change_queue_type,
5940 .bios_param = ipr_biosparam,
5941 .can_queue = IPR_MAX_COMMANDS,
5942 .this_id = -1,
5943 .sg_tablesize = IPR_MAX_SGLIST,
5944 .max_sectors = IPR_IOA_MAX_SECTORS,
5945 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5946 .use_clustering = ENABLE_CLUSTERING,
5947 .shost_attrs = ipr_ioa_attrs,
5948 .sdev_attrs = ipr_dev_attrs,
5949 .proc_name = IPR_NAME
5950};
5951
35a39691
BK		 5952/**
5953 * ipr_ata_phy_reset - libata phy_reset handler
5954 * @ap: ata port to reset
5955 *
5956 **/
5957static void ipr_ata_phy_reset(struct ata_port *ap)
5958{
5959 unsigned long flags;
5960 struct ipr_sata_port *sata_port = ap->private_data;
5961 struct ipr_resource_entry *res = sata_port->res;
5962 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5963 int rc;
5964
5965 ENTER;
5966 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5967 while(ioa_cfg->in_reset_reload) {
5968 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5969 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5970 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5971 }
5972
5973 if (!ioa_cfg->allow_cmds)
5974 goto out_unlock;
5975
5976 rc = ipr_device_reset(ioa_cfg, res);
5977
5978 if (rc) {
3e4ec344 5979 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5980 goto out_unlock;
5981 }
5982
3e7ebdfa
WB		 5983 ap->link.device[0].class = res->ata_class;
5984 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 5985 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5986
5987out_unlock:
5988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5989 LEAVE;
5990}
5991
5992/**
5993 * ipr_ata_post_internal - Cleanup after an internal command
5994 * @qc: ATA queued command
5995 *
5996 * Return value:
5997 * none
5998 **/
5999static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6000{
6001 struct ipr_sata_port *sata_port = qc->ap->private_data;
6002 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6003 struct ipr_cmnd *ipr_cmd;
6004 unsigned long flags;
6005
6006 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
73d98ff0
BK		 6007 while(ioa_cfg->in_reset_reload) {
6008 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6009 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6010 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6011 }
6012
35a39691
BK		 6013 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
6014 if (ipr_cmd->qc == qc) {
6015 ipr_device_reset(ioa_cfg, sata_port->res);
6016 break;
6017 }
6018 }
6019 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6020}
6021
35a39691
BK		 6022/**
6023 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6024 * @regs: destination
6025 * @tf: source ATA taskfile
6026 *
6027 * Return value:
6028 * none
6029 **/
6030static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6031 struct ata_taskfile *tf)
6032{
6033 regs->feature = tf->feature;
6034 regs->nsect = tf->nsect;
6035 regs->lbal = tf->lbal;
6036 regs->lbam = tf->lbam;
6037 regs->lbah = tf->lbah;
6038 regs->device = tf->device;
6039 regs->command = tf->command;
6040 regs->hob_feature = tf->hob_feature;
6041 regs->hob_nsect = tf->hob_nsect;
6042 regs->hob_lbal = tf->hob_lbal;
6043 regs->hob_lbam = tf->hob_lbam;
6044 regs->hob_lbah = tf->hob_lbah;
6045 regs->ctl = tf->ctl;
6046}
6047
6048/**
6049 * ipr_sata_done - done function for SATA commands
6050 * @ipr_cmd: ipr command struct
6051 *
6052 * This function is invoked by the interrupt handler for
6053 * ops generated by the SCSI mid-layer to SATA devices
6054 *
6055 * Return value:
6056 * none
6057 **/
6058static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6059{
6060 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6061 struct ata_queued_cmd *qc = ipr_cmd->qc;
6062 struct ipr_sata_port *sata_port = qc->ap->private_data;
6063 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6064 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6065
96d21f00
WB		 6066 if (ipr_cmd->ioa_cfg->sis64)
6067 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6068 sizeof(struct ipr_ioasa_gata));
6069 else
6070 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6071 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6072 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6073
96d21f00 6074 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6075 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6076
6077 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6078 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6079 else
96d21f00 6080 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
35a39691
BK		 6081 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6082 ata_qc_complete(qc);
6083}
6084
a32c055f
WB		 6085/**
6086 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6087 * @ipr_cmd: ipr command struct
6088 * @qc: ATA queued command
6089 *
6090 **/
6091static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6092 struct ata_queued_cmd *qc)
6093{
6094 u32 ioadl_flags = 0;
6095 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6096 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6097 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6098 int len = qc->nbytes;
6099 struct scatterlist *sg;
6100 unsigned int si;
6101 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6102
6103 if (len == 0)
6104 return;
6105
6106 if (qc->dma_dir == DMA_TO_DEVICE) {
6107 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6108 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6109 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6110 ioadl_flags = IPR_IOADL_FLAGS_READ;
6111
6112 ioarcb->data_transfer_length = cpu_to_be32(len);
6113 ioarcb->ioadl_len =
6114 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6115 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6116 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6117
6118 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6119 ioadl64->flags = cpu_to_be32(ioadl_flags);
6120 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6121 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6122
6123 last_ioadl64 = ioadl64;
6124 ioadl64++;
6125 }
6126
6127 if (likely(last_ioadl64))
6128 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6129}
6130
35a39691
BK		 6131/**
6132 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6133 * @ipr_cmd: ipr command struct
6134 * @qc: ATA queued command
6135 *
6136 **/
6137static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6138 struct ata_queued_cmd *qc)
6139{
6140 u32 ioadl_flags = 0;
6141 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6142 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6143 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6144 int len = qc->nbytes;
35a39691 6145 struct scatterlist *sg;
ff2aeb1e 6146 unsigned int si;
35a39691
BK		 6147
6148 if (len == 0)
6149 return;
6150
6151 if (qc->dma_dir == DMA_TO_DEVICE) {
6152 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6153 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6154 ioarcb->data_transfer_length = cpu_to_be32(len);
6155 ioarcb->ioadl_len =
35a39691
BK		 6156 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6157 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6158 ioadl_flags = IPR_IOADL_FLAGS_READ;
6159 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6160 ioarcb->read_ioadl_len =
6161 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6162 }
6163
ff2aeb1e 6164 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6165 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6166 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6167
6168 last_ioadl = ioadl;
6169 ioadl++;
35a39691 6170 }
3be6cbd7
JG		 6171
6172 if (likely(last_ioadl))
6173 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6174}
6175
6176/**
6177 * ipr_qc_issue - Issue a SATA qc to a device
6178 * @qc: queued command
6179 *
6180 * Return value:
6181 * 0 if success
6182 **/
6183static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6184{
6185 struct ata_port *ap = qc->ap;
6186 struct ipr_sata_port *sata_port = ap->private_data;
6187 struct ipr_resource_entry *res = sata_port->res;
6188 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6189 struct ipr_cmnd *ipr_cmd;
6190 struct ipr_ioarcb *ioarcb;
6191 struct ipr_ioarcb_ata_regs *regs;
6192
6193 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
0feeed82 6194 return AC_ERR_SYSTEM;
35a39691
BK		 6195
6196 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6197 ioarcb = &ipr_cmd->ioarcb;
35a39691 6198
a32c055f
WB		 6199 if (ioa_cfg->sis64) {
6200 regs = &ipr_cmd->i.ata_ioadl.regs;
6201 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6202 } else
6203 regs = &ioarcb->u.add_data.u.regs;
6204
6205 memset(regs, 0, sizeof(*regs));
6206 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691
BK		 6207
6208 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6209 ipr_cmd->qc = qc;
6210 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6211 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6212 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6213 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6214 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6215 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6216
a32c055f
WB		 6217 if (ioa_cfg->sis64)
6218 ipr_build_ata_ioadl64(ipr_cmd, qc);
6219 else
6220 ipr_build_ata_ioadl(ipr_cmd, qc);
6221
35a39691
BK		 6222 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6223 ipr_copy_sata_tf(regs, &qc->tf);
6224 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6225 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6226
6227 switch (qc->tf.protocol) {
6228 case ATA_PROT_NODATA:
6229 case ATA_PROT_PIO:
6230 break;
6231
6232 case ATA_PROT_DMA:
6233 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6234 break;
6235
0dc36888
TH		 6236 case ATAPI_PROT_PIO:
6237 case ATAPI_PROT_NODATA:
35a39691
BK		 6238 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6239 break;
6240
0dc36888 6241 case ATAPI_PROT_DMA:
35a39691
BK		 6242 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6243 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6244 break;
6245
6246 default:
6247 WARN_ON(1);
0feeed82 6248 return AC_ERR_INVALID;
35a39691
BK		 6249 }
6250
6251 mb();
a32c055f
WB		 6252
6253 ipr_send_command(ipr_cmd);
6254
35a39691
BK		 6255 return 0;
6256}
6257
4c9bf4e7
TH		 6258/**
6259 * ipr_qc_fill_rtf - Read result TF
6260 * @qc: ATA queued command
6261 *
6262 * Return value:
6263 * true
6264 **/
6265static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6266{
6267 struct ipr_sata_port *sata_port = qc->ap->private_data;
6268 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6269 struct ata_taskfile *tf = &qc->result_tf;
6270
6271 tf->feature = g->error;
6272 tf->nsect = g->nsect;
6273 tf->lbal = g->lbal;
6274 tf->lbam = g->lbam;
6275 tf->lbah = g->lbah;
6276 tf->device = g->device;
6277 tf->command = g->status;
6278 tf->hob_nsect = g->hob_nsect;
6279 tf->hob_lbal = g->hob_lbal;
6280 tf->hob_lbam = g->hob_lbam;
6281 tf->hob_lbah = g->hob_lbah;
6282 tf->ctl = g->alt_status;
6283
6284 return true;
6285}
6286
35a39691 6287static struct ata_port_operations ipr_sata_ops = {
35a39691 6288 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6289 .hardreset = ipr_sata_reset,
35a39691 6290 .post_internal_cmd = ipr_ata_post_internal,
35a39691
BK		 6291 .qc_prep = ata_noop_qc_prep,
6292 .qc_issue = ipr_qc_issue,
4c9bf4e7 6293 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6294 .port_start = ata_sas_port_start,
6295 .port_stop = ata_sas_port_stop
6296};
6297
6298static struct ata_port_info sata_port_info = {
9cbe056f 6299 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
0f2e0330
SS		 6300 .pio_mask = ATA_PIO4_ONLY,
6301 .mwdma_mask = ATA_MWDMA2,
6302 .udma_mask = ATA_UDMA6,
35a39691
BK		 6303 .port_ops = &ipr_sata_ops
6304};
6305
1da177e4
LT		 6306#ifdef CONFIG_PPC_PSERIES
6307static const u16 ipr_blocked_processors[] = {
6308 PV_NORTHSTAR,
6309 PV_PULSAR,
6310 PV_POWER4,
6311 PV_ICESTAR,
6312 PV_SSTAR,
6313 PV_POWER4p,
6314 PV_630,
6315 PV_630p
6316};
6317
6318/**
6319 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6320 * @ioa_cfg: ioa cfg struct
6321 *
6322 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6323 * certain pSeries hardware. This function determines if the given
6324 * adapter is in one of these confgurations or not.
6325 *
6326 * Return value:
6327 * 1 if adapter is not supported / 0 if adapter is supported
6328 **/
6329static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6330{
1da177e4
LT		 6331 int i;
6332
44c10138
AK		 6333 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6334 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6335 if (__is_processor(ipr_blocked_processors[i]))
6336 return 1;
1da177e4
LT		 6337 }
6338 }
6339 return 0;
6340}
6341#else
6342#define ipr_invalid_adapter(ioa_cfg) 0
6343#endif
6344
6345/**
6346 * ipr_ioa_bringdown_done - IOA bring down completion.
6347 * @ipr_cmd: ipr command struct
6348 *
6349 * This function processes the completion of an adapter bring down.
6350 * It wakes any reset sleepers.
6351 *
6352 * Return value:
6353 * IPR_RC_JOB_RETURN
6354 **/
6355static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6356{
6357 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6358
6359 ENTER;
6360 ioa_cfg->in_reset_reload = 0;
6361 ioa_cfg->reset_retries = 0;
6362 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6363 wake_up_all(&ioa_cfg->reset_wait_q);
6364
6365 spin_unlock_irq(ioa_cfg->host->host_lock);
6366 scsi_unblock_requests(ioa_cfg->host);
6367 spin_lock_irq(ioa_cfg->host->host_lock);
6368 LEAVE;
6369
6370 return IPR_RC_JOB_RETURN;
6371}
6372
6373/**
6374 * ipr_ioa_reset_done - IOA reset completion.
6375 * @ipr_cmd: ipr command struct
6376 *
6377 * This function processes the completion of an adapter reset.
6378 * It schedules any necessary mid-layer add/removes and
6379 * wakes any reset sleepers.
6380 *
6381 * Return value:
6382 * IPR_RC_JOB_RETURN
6383 **/
6384static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6385{
6386 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6387 struct ipr_resource_entry *res;
6388 struct ipr_hostrcb *hostrcb, *temp;
6389 int i = 0;
6390
6391 ENTER;
6392 ioa_cfg->in_reset_reload = 0;
6393 ioa_cfg->allow_cmds = 1;
6394 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6395 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6396
6397 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6398 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6399 ipr_trace;
6400 break;
6401 }
6402 }
6403 schedule_work(&ioa_cfg->work_q);
6404
6405 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6406 list_del(&hostrcb->queue);
6407 if (i++ < IPR_NUM_LOG_HCAMS)
6408 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6409 else
6410 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6411 }
6412
6bb04170 6413 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6414 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6415
6416 ioa_cfg->reset_retries = 0;
6417 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6418 wake_up_all(&ioa_cfg->reset_wait_q);
6419
30237853 6420 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6421 scsi_unblock_requests(ioa_cfg->host);
30237853 6422 spin_lock(ioa_cfg->host->host_lock);
1da177e4
LT		 6423
6424 if (!ioa_cfg->allow_cmds)
6425 scsi_block_requests(ioa_cfg->host);
6426
6427 LEAVE;
6428 return IPR_RC_JOB_RETURN;
6429}
6430
6431/**
6432 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6433 * @supported_dev: supported device struct
6434 * @vpids: vendor product id struct
6435 *
6436 * Return value:
6437 * none
6438 **/
6439static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6440 struct ipr_std_inq_vpids *vpids)
6441{
6442 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6443 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6444 supported_dev->num_records = 1;
6445 supported_dev->data_length =
6446 cpu_to_be16(sizeof(struct ipr_supported_device));
6447 supported_dev->reserved = 0;
6448}
6449
6450/**
6451 * ipr_set_supported_devs - Send Set Supported Devices for a device
6452 * @ipr_cmd: ipr command struct
6453 *
a32c055f 6454 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6455 *
6456 * Return value:
6457 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6458 **/
6459static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6460{
6461 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6462 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6463 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6464 struct ipr_resource_entry *res = ipr_cmd->u.res;
6465
6466 ipr_cmd->job_step = ipr_ioa_reset_done;
6467
6468 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6469 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6470 continue;
6471
6472 ipr_cmd->u.res = res;
3e7ebdfa 6473 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6474
6475 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6476 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6477 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6478
6479 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6480 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6481 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6482 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6483
a32c055f
WB		 6484 ipr_init_ioadl(ipr_cmd,
6485 ioa_cfg->vpd_cbs_dma +
6486 offsetof(struct ipr_misc_cbs, supp_dev),
6487 sizeof(struct ipr_supported_device),
6488 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6489
6490 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6491 IPR_SET_SUP_DEVICE_TIMEOUT);
6492
3e7ebdfa
WB		 6493 if (!ioa_cfg->sis64)
6494 ipr_cmd->job_step = ipr_set_supported_devs;
1da177e4
LT		 6495 return IPR_RC_JOB_RETURN;
6496 }
6497
6498 return IPR_RC_JOB_CONTINUE;
6499}
6500
6501/**
6502 * ipr_get_mode_page - Locate specified mode page
6503 * @mode_pages: mode page buffer
6504 * @page_code: page code to find
6505 * @len: minimum required length for mode page
6506 *
6507 * Return value:
6508 * pointer to mode page / NULL on failure
6509 **/
6510static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6511 u32 page_code, u32 len)
6512{
6513 struct ipr_mode_page_hdr *mode_hdr;
6514 u32 page_length;
6515 u32 length;
6516
6517 if (!mode_pages || (mode_pages->hdr.length == 0))
6518 return NULL;
6519
6520 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6521 mode_hdr = (struct ipr_mode_page_hdr *)
6522 (mode_pages->data + mode_pages->hdr.block_desc_len);
6523
6524 while (length) {
6525 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6526 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6527 return mode_hdr;
6528 break;
6529 } else {
6530 page_length = (sizeof(struct ipr_mode_page_hdr) +
6531 mode_hdr->page_length);
6532 length -= page_length;
6533 mode_hdr = (struct ipr_mode_page_hdr *)
6534 ((unsigned long)mode_hdr + page_length);
6535 }
6536 }
6537 return NULL;
6538}
6539
6540/**
6541 * ipr_check_term_power - Check for term power errors
6542 * @ioa_cfg: ioa config struct
6543 * @mode_pages: IOAFP mode pages buffer
6544 *
6545 * Check the IOAFP's mode page 28 for term power errors
6546 *
6547 * Return value:
6548 * nothing
6549 **/
6550static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6551 struct ipr_mode_pages *mode_pages)
6552{
6553 int i;
6554 int entry_length;
6555 struct ipr_dev_bus_entry *bus;
6556 struct ipr_mode_page28 *mode_page;
6557
6558 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6559 sizeof(struct ipr_mode_page28));
6560
6561 entry_length = mode_page->entry_length;
6562
6563 bus = mode_page->bus;
6564
6565 for (i = 0; i < mode_page->num_entries; i++) {
6566 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6567 dev_err(&ioa_cfg->pdev->dev,
6568 "Term power is absent on scsi bus %d\n",
6569 bus->res_addr.bus);
6570 }
6571
6572 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6573 }
6574}
6575
6576/**
6577 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6578 * @ioa_cfg: ioa config struct
6579 *
6580 * Looks through the config table checking for SES devices. If
6581 * the SES device is in the SES table indicating a maximum SCSI
6582 * bus speed, the speed is limited for the bus.
6583 *
6584 * Return value:
6585 * none
6586 **/
6587static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6588{
6589 u32 max_xfer_rate;
6590 int i;
6591
6592 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6593 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6594 ioa_cfg->bus_attr[i].bus_width);
6595
6596 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6597 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6598 }
6599}
6600
6601/**
6602 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6603 * @ioa_cfg: ioa config struct
6604 * @mode_pages: mode page 28 buffer
6605 *
6606 * Updates mode page 28 based on driver configuration
6607 *
6608 * Return value:
6609 * none
6610 **/
6611static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6612 struct ipr_mode_pages *mode_pages)
6613{
6614 int i, entry_length;
6615 struct ipr_dev_bus_entry *bus;
6616 struct ipr_bus_attributes *bus_attr;
6617 struct ipr_mode_page28 *mode_page;
6618
6619 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6620 sizeof(struct ipr_mode_page28));
6621
6622 entry_length = mode_page->entry_length;
6623
6624 /* Loop for each device bus entry */
6625 for (i = 0, bus = mode_page->bus;
6626 i < mode_page->num_entries;
6627 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6628 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6629 dev_err(&ioa_cfg->pdev->dev,
6630 "Invalid resource address reported: 0x%08X\n",
6631 IPR_GET_PHYS_LOC(bus->res_addr));
6632 continue;
6633 }
6634
6635 bus_attr = &ioa_cfg->bus_attr[i];
6636 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6637 bus->bus_width = bus_attr->bus_width;
6638 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6639 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6640 if (bus_attr->qas_enabled)
6641 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6642 else
6643 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6644 }
6645}
6646
6647/**
6648 * ipr_build_mode_select - Build a mode select command
6649 * @ipr_cmd: ipr command struct
6650 * @res_handle: resource handle to send command to
6651 * @parm: Byte 2 of Mode Sense command
6652 * @dma_addr: DMA buffer address
6653 * @xfer_len: data transfer length
6654 *
6655 * Return value:
6656 * none
6657 **/
6658static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 6659 __be32 res_handle, u8 parm,
6660 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6661{
1da177e4
LT		 6662 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6663
6664 ioarcb->res_handle = res_handle;
6665 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6666 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6667 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6668 ioarcb->cmd_pkt.cdb[1] = parm;
6669 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6670
a32c055f 6671 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6672}
6673
6674/**
6675 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6676 * @ipr_cmd: ipr command struct
6677 *
6678 * This function sets up the SCSI bus attributes and sends
6679 * a Mode Select for Page 28 to activate them.
6680 *
6681 * Return value:
6682 * IPR_RC_JOB_RETURN
6683 **/
6684static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6685{
6686 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6687 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6688 int length;
6689
6690 ENTER;
4733804c
BK		 6691 ipr_scsi_bus_speed_limit(ioa_cfg);
6692 ipr_check_term_power(ioa_cfg, mode_pages);
6693 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6694 length = mode_pages->hdr.length + 1;
6695 mode_pages->hdr.length = 0;
1da177e4
LT		 6696
6697 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6698 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6699 length);
6700
f72919ec
WB		 6701 ipr_cmd->job_step = ipr_set_supported_devs;
6702 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6703 struct ipr_resource_entry, queue);
1da177e4
LT		 6704 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6705
6706 LEAVE;
6707 return IPR_RC_JOB_RETURN;
6708}
6709
6710/**
6711 * ipr_build_mode_sense - Builds a mode sense command
6712 * @ipr_cmd: ipr command struct
6713 * @res: resource entry struct
6714 * @parm: Byte 2 of mode sense command
6715 * @dma_addr: DMA address of mode sense buffer
6716 * @xfer_len: Size of DMA buffer
6717 *
6718 * Return value:
6719 * none
6720 **/
6721static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6722 __be32 res_handle,
a32c055f 6723 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6724{
1da177e4
LT		 6725 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6726
6727 ioarcb->res_handle = res_handle;
6728 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6729 ioarcb->cmd_pkt.cdb[2] = parm;
6730 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6731 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6732
a32c055f 6733 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6734}
6735
dfed823e
BK		 6736/**
6737 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6738 * @ipr_cmd: ipr command struct
6739 *
6740 * This function handles the failure of an IOA bringup command.
6741 *
6742 * Return value:
6743 * IPR_RC_JOB_RETURN
6744 **/
6745static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6746{
6747 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6748 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 6749
6750 dev_err(&ioa_cfg->pdev->dev,
6751 "0x%02X failed with IOASC: 0x%08X\n",
6752 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6753
6754 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6755 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6756 return IPR_RC_JOB_RETURN;
6757}
6758
6759/**
6760 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6761 * @ipr_cmd: ipr command struct
6762 *
6763 * This function handles the failure of a Mode Sense to the IOAFP.
6764 * Some adapters do not handle all mode pages.
6765 *
6766 * Return value:
6767 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6768 **/
6769static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6770{
f72919ec 6771 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6772 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 6773
6774 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 6775 ipr_cmd->job_step = ipr_set_supported_devs;
6776 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6777 struct ipr_resource_entry, queue);
dfed823e
BK		 6778 return IPR_RC_JOB_CONTINUE;
6779 }
6780
6781 return ipr_reset_cmd_failed(ipr_cmd);
6782}
6783
1da177e4
LT		 6784/**
6785 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6786 * @ipr_cmd: ipr command struct
6787 *
6788 * This function send a Page 28 mode sense to the IOA to
6789 * retrieve SCSI bus attributes.
6790 *
6791 * Return value:
6792 * IPR_RC_JOB_RETURN
6793 **/
6794static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6795{
6796 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6797
6798 ENTER;
6799 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6800 0x28, ioa_cfg->vpd_cbs_dma +
6801 offsetof(struct ipr_misc_cbs, mode_pages),
6802 sizeof(struct ipr_mode_pages));
6803
6804 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 6805 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 6806
6807 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6808
6809 LEAVE;
6810 return IPR_RC_JOB_RETURN;
6811}
6812
ac09c349
BK		 6813/**
6814 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6815 * @ipr_cmd: ipr command struct
6816 *
6817 * This function enables dual IOA RAID support if possible.
6818 *
6819 * Return value:
6820 * IPR_RC_JOB_RETURN
6821 **/
6822static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6823{
6824 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6825 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6826 struct ipr_mode_page24 *mode_page;
6827 int length;
6828
6829 ENTER;
6830 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6831 sizeof(struct ipr_mode_page24));
6832
6833 if (mode_page)
6834 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6835
6836 length = mode_pages->hdr.length + 1;
6837 mode_pages->hdr.length = 0;
6838
6839 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6840 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6841 length);
6842
6843 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6844 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6845
6846 LEAVE;
6847 return IPR_RC_JOB_RETURN;
6848}
6849
6850/**
6851 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6852 * @ipr_cmd: ipr command struct
6853 *
6854 * This function handles the failure of a Mode Sense to the IOAFP.
6855 * Some adapters do not handle all mode pages.
6856 *
6857 * Return value:
6858 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6859 **/
6860static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6861{
96d21f00 6862 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 6863
6864 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6865 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6866 return IPR_RC_JOB_CONTINUE;
6867 }
6868
6869 return ipr_reset_cmd_failed(ipr_cmd);
6870}
6871
6872/**
6873 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6874 * @ipr_cmd: ipr command struct
6875 *
6876 * This function send a mode sense to the IOA to retrieve
6877 * the IOA Advanced Function Control mode page.
6878 *
6879 * Return value:
6880 * IPR_RC_JOB_RETURN
6881 **/
6882static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6883{
6884 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6885
6886 ENTER;
6887 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6888 0x24, ioa_cfg->vpd_cbs_dma +
6889 offsetof(struct ipr_misc_cbs, mode_pages),
6890 sizeof(struct ipr_mode_pages));
6891
6892 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6893 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6894
6895 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6896
6897 LEAVE;
6898 return IPR_RC_JOB_RETURN;
6899}
6900
1da177e4
LT		 6901/**
6902 * ipr_init_res_table - Initialize the resource table
6903 * @ipr_cmd: ipr command struct
6904 *
6905 * This function looks through the existing resource table, comparing
6906 * it with the config table. This function will take care of old/new
6907 * devices and schedule adding/removing them from the mid-layer
6908 * as appropriate.
6909 *
6910 * Return value:
6911 * IPR_RC_JOB_CONTINUE
6912 **/
6913static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6914{
6915 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6916 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 6917 struct ipr_config_table_entry_wrapper cfgtew;
6918 int entries, found, flag, i;
1da177e4
LT		 6919 LIST_HEAD(old_res);
6920
6921 ENTER;
3e7ebdfa
WB		 6922 if (ioa_cfg->sis64)
6923 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6924 else
6925 flag = ioa_cfg->u.cfg_table->hdr.flags;
6926
6927 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 6928 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6929
6930 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6931 list_move_tail(&res->queue, &old_res);
6932
3e7ebdfa 6933 if (ioa_cfg->sis64)
438b0331 6934 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 6935 else
6936 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6937
6938 for (i = 0; i < entries; i++) {
6939 if (ioa_cfg->sis64)
6940 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6941 else
6942 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 6943 found = 0;
6944
6945 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 6946 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 6947 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6948 found = 1;
6949 break;
6950 }
6951 }
6952
6953 if (!found) {
6954 if (list_empty(&ioa_cfg->free_res_q)) {
6955 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6956 break;
6957 }
6958
6959 found = 1;
6960 res = list_entry(ioa_cfg->free_res_q.next,
6961 struct ipr_resource_entry, queue);
6962 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 6963 ipr_init_res_entry(res, &cfgtew);
1da177e4 6964 res->add_to_ml = 1;
56115598
WB		 6965 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6966 res->sdev->allow_restart = 1;
1da177e4
LT		 6967
6968 if (found)
3e7ebdfa 6969 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 6970 }
6971
6972 list_for_each_entry_safe(res, temp, &old_res, queue) {
6973 if (res->sdev) {
6974 res->del_from_ml = 1;
3e7ebdfa 6975 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 6976 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 6977 }
6978 }
6979
3e7ebdfa
WB		 6980 list_for_each_entry_safe(res, temp, &old_res, queue) {
6981 ipr_clear_res_target(res);
6982 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6983 }
6984
ac09c349
BK		 6985 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6986 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6987 else
6988 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 6989
6990 LEAVE;
6991 return IPR_RC_JOB_CONTINUE;
6992}
6993
6994/**
6995 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6996 * @ipr_cmd: ipr command struct
6997 *
6998 * This function sends a Query IOA Configuration command
6999 * to the adapter to retrieve the IOA configuration table.
7000 *
7001 * Return value:
7002 * IPR_RC_JOB_RETURN
7003 **/
7004static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7005{
7006 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7007 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7008 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7009 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7010
7011 ENTER;
ac09c349
BK		 7012 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7013 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7014 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7015 ucode_vpd->major_release, ucode_vpd->card_type,
7016 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7017 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7018 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7019
7020 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7021 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7022 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7023 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7024
3e7ebdfa 7025 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7026 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7027
7028 ipr_cmd->job_step = ipr_init_res_table;
7029
7030 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7031
7032 LEAVE;
7033 return IPR_RC_JOB_RETURN;
7034}
7035
7036/**
7037 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7038 * @ipr_cmd: ipr command struct
7039 *
7040 * This utility function sends an inquiry to the adapter.
7041 *
7042 * Return value:
7043 * none
7044 **/
7045static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7046 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7047{
7048 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7049
7050 ENTER;
7051 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7052 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7053
7054 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7055 ioarcb->cmd_pkt.cdb[1] = flags;
7056 ioarcb->cmd_pkt.cdb[2] = page;
7057 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7058
a32c055f 7059 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7060
7061 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7062 LEAVE;
7063}
7064
62275040
BK		 7065/**
7066 * ipr_inquiry_page_supported - Is the given inquiry page supported
7067 * @page0: inquiry page 0 buffer
7068 * @page: page code.
7069 *
7070 * This function determines if the specified inquiry page is supported.
7071 *
7072 * Return value:
7073 * 1 if page is supported / 0 if not
7074 **/
7075static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7076{
7077 int i;
7078
7079 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7080 if (page0->page[i] == page)
7081 return 1;
7082
7083 return 0;
7084}
7085
ac09c349
BK		 7086/**
7087 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7088 * @ipr_cmd: ipr command struct
7089 *
7090 * This function sends a Page 0xD0 inquiry to the adapter
7091 * to retrieve adapter capabilities.
7092 *
7093 * Return value:
7094 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7095 **/
7096static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7097{
7098 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7099 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7100 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7101
7102 ENTER;
7103 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7104 memset(cap, 0, sizeof(*cap));
7105
7106 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7107 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7108 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7109 sizeof(struct ipr_inquiry_cap));
7110 return IPR_RC_JOB_RETURN;
7111 }
7112
7113 LEAVE;
7114 return IPR_RC_JOB_CONTINUE;
7115}
7116
1da177e4
LT		 7117/**
7118 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7119 * @ipr_cmd: ipr command struct
7120 *
7121 * This function sends a Page 3 inquiry to the adapter
7122 * to retrieve software VPD information.
7123 *
7124 * Return value:
7125 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7126 **/
7127static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7128{
7129 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7130
7131 ENTER;
7132
ac09c349 7133 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7134
7135 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7136 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7137 sizeof(struct ipr_inquiry_page3));
7138
7139 LEAVE;
7140 return IPR_RC_JOB_RETURN;
7141}
7142
7143/**
7144 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7145 * @ipr_cmd: ipr command struct
7146 *
7147 * This function sends a Page 0 inquiry to the adapter
7148 * to retrieve supported inquiry pages.
7149 *
7150 * Return value:
7151 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7152 **/
7153static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7154{
7155 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7156 char type[5];
7157
7158 ENTER;
7159
7160 /* Grab the type out of the VPD and store it away */
7161 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7162 type[4] = '\0';
7163 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7164
62275040 7165 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7166
62275040
BK		 7167 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7168 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7169 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7170
7171 LEAVE;
7172 return IPR_RC_JOB_RETURN;
7173}
7174
7175/**
7176 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7177 * @ipr_cmd: ipr command struct
7178 *
7179 * This function sends a standard inquiry to the adapter.
7180 *
7181 * Return value:
7182 * IPR_RC_JOB_RETURN
7183 **/
7184static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7185{
7186 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7187
7188 ENTER;
62275040 7189 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7190
7191 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7192 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7193 sizeof(struct ipr_ioa_vpd));
7194
7195 LEAVE;
7196 return IPR_RC_JOB_RETURN;
7197}
7198
7199/**
214777ba 7200 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7201 * @ipr_cmd: ipr command struct
7202 *
7203 * This function send an Identify Host Request Response Queue
7204 * command to establish the HRRQ with the adapter.
7205 *
7206 * Return value:
7207 * IPR_RC_JOB_RETURN
7208 **/
214777ba 7209static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7210{
7211 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7212 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7213
7214 ENTER;
7215 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7216
7217 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7218 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7219
7220 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
214777ba
WB		 7221 if (ioa_cfg->sis64)
7222 ioarcb->cmd_pkt.cdb[1] = 0x1;
1da177e4 7223 ioarcb->cmd_pkt.cdb[2] =
214777ba 7224 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
1da177e4 7225 ioarcb->cmd_pkt.cdb[3] =
214777ba 7226 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
1da177e4 7227 ioarcb->cmd_pkt.cdb[4] =
214777ba 7228 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
1da177e4 7229 ioarcb->cmd_pkt.cdb[5] =
214777ba 7230 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
1da177e4
LT		 7231 ioarcb->cmd_pkt.cdb[7] =
7232 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7233 ioarcb->cmd_pkt.cdb[8] =
7234 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7235
214777ba
WB		 7236 if (ioa_cfg->sis64) {
7237 ioarcb->cmd_pkt.cdb[10] =
7238 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7239 ioarcb->cmd_pkt.cdb[11] =
7240 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7241 ioarcb->cmd_pkt.cdb[12] =
7242 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7243 ioarcb->cmd_pkt.cdb[13] =
7244 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7245 }
7246
1da177e4
LT		 7247 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7248
7249 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7250
7251 LEAVE;
7252 return IPR_RC_JOB_RETURN;
7253}
7254
7255/**
7256 * ipr_reset_timer_done - Adapter reset timer function
7257 * @ipr_cmd: ipr command struct
7258 *
7259 * Description: This function is used in adapter reset processing
7260 * for timing events. If the reset_cmd pointer in the IOA
7261 * config struct is not this adapter's we are doing nested
7262 * resets and fail_all_ops will take care of freeing the
7263 * command block.
7264 *
7265 * Return value:
7266 * none
7267 **/
7268static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7269{
7270 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7271 unsigned long lock_flags = 0;
7272
7273 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7274
7275 if (ioa_cfg->reset_cmd == ipr_cmd) {
7276 list_del(&ipr_cmd->queue);
7277 ipr_cmd->done(ipr_cmd);
7278 }
7279
7280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7281}
7282
7283/**
7284 * ipr_reset_start_timer - Start a timer for adapter reset job
7285 * @ipr_cmd: ipr command struct
7286 * @timeout: timeout value
7287 *
7288 * Description: This function is used in adapter reset processing
7289 * for timing events. If the reset_cmd pointer in the IOA
7290 * config struct is not this adapter's we are doing nested
7291 * resets and fail_all_ops will take care of freeing the
7292 * command block.
7293 *
7294 * Return value:
7295 * none
7296 **/
7297static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7298 unsigned long timeout)
7299{
7300 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7301 ipr_cmd->done = ipr_reset_ioa_job;
7302
7303 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7304 ipr_cmd->timer.expires = jiffies + timeout;
7305 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7306 add_timer(&ipr_cmd->timer);
7307}
7308
7309/**
7310 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7311 * @ioa_cfg: ioa cfg struct
7312 *
7313 * Return value:
7314 * nothing
7315 **/
7316static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7317{
7318 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7319
7320 /* Initialize Host RRQ pointers */
7321 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7322 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7323 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7324 ioa_cfg->toggle_bit = 1;
7325
7326 /* Zero out config table */
3e7ebdfa 7327 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7328}
7329
214777ba
WB		 7330/**
7331 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7332 * @ipr_cmd: ipr command struct
7333 *
7334 * Return value:
7335 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7336 **/
7337static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7338{
7339 unsigned long stage, stage_time;
7340 u32 feedback;
7341 volatile u32 int_reg;
7342 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7343 u64 maskval = 0;
7344
7345 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7346 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7347 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7348
7349 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7350
7351 /* sanity check the stage_time value */
438b0331
WB		 7352 if (stage_time == 0)
7353 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7354 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7355 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7356 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7357 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7358
7359 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7360 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7361 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7362 stage_time = ioa_cfg->transop_timeout;
7363 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7364 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7365 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7366 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7367 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7368 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7369 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7370 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7371 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7372 return IPR_RC_JOB_CONTINUE;
7373 }
214777ba
WB		 7374 }
7375
7376 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7377 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7378 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7379 ipr_cmd->done = ipr_reset_ioa_job;
7380 add_timer(&ipr_cmd->timer);
7381 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7382
7383 return IPR_RC_JOB_RETURN;
7384}
7385
1da177e4
LT		 7386/**
7387 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7388 * @ipr_cmd: ipr command struct
7389 *
7390 * This function reinitializes some control blocks and
7391 * enables destructive diagnostics on the adapter.
7392 *
7393 * Return value:
7394 * IPR_RC_JOB_RETURN
7395 **/
7396static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7397{
7398 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7399 volatile u32 int_reg;
7be96900 7400 volatile u64 maskval;
1da177e4
LT		 7401
7402 ENTER;
214777ba 7403 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7404 ipr_init_ioa_mem(ioa_cfg);
7405
7406 ioa_cfg->allow_interrupts = 1;
8701f185
WB		 7407 if (ioa_cfg->sis64) {
7408 /* Set the adapter to the correct endian mode. */
7409 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7410 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7411 }
7412
7be96900 7413 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7414
7415 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7416 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7417 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7418 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7419 return IPR_RC_JOB_CONTINUE;
7420 }
7421
7422 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7423 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7424
7be96900
WB		 7425 if (ioa_cfg->sis64) {
7426 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7427 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7428 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7429 } else
7430 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7431
1da177e4
LT		 7432 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7433
7434 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7435
214777ba
WB		 7436 if (ioa_cfg->sis64) {
7437 ipr_cmd->job_step = ipr_reset_next_stage;
7438 return IPR_RC_JOB_CONTINUE;
7439 }
7440
1da177e4 7441 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7442 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7443 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7444 ipr_cmd->done = ipr_reset_ioa_job;
7445 add_timer(&ipr_cmd->timer);
7446 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7447
7448 LEAVE;
7449 return IPR_RC_JOB_RETURN;
7450}
7451
7452/**
7453 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7454 * @ipr_cmd: ipr command struct
7455 *
7456 * This function is invoked when an adapter dump has run out
7457 * of processing time.
7458 *
7459 * Return value:
7460 * IPR_RC_JOB_CONTINUE
7461 **/
7462static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7463{
7464 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7465
7466 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 7467 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7468 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 7469 ioa_cfg->sdt_state = ABORT_DUMP;
7470
4c647e90 7471 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 7472 ipr_cmd->job_step = ipr_reset_alert;
7473
7474 return IPR_RC_JOB_CONTINUE;
7475}
7476
7477/**
7478 * ipr_unit_check_no_data - Log a unit check/no data error log
7479 * @ioa_cfg: ioa config struct
7480 *
7481 * Logs an error indicating the adapter unit checked, but for some
7482 * reason, we were unable to fetch the unit check buffer.
7483 *
7484 * Return value:
7485 * nothing
7486 **/
7487static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7488{
7489 ioa_cfg->errors_logged++;
7490 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7491}
7492
7493/**
7494 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7495 * @ioa_cfg: ioa config struct
7496 *
7497 * Fetches the unit check buffer from the adapter by clocking the data
7498 * through the mailbox register.
7499 *
7500 * Return value:
7501 * nothing
7502 **/
7503static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7504{
7505 unsigned long mailbox;
7506 struct ipr_hostrcb *hostrcb;
7507 struct ipr_uc_sdt sdt;
7508 int rc, length;
65f56475 7509 u32 ioasc;
1da177e4
LT		 7510
7511 mailbox = readl(ioa_cfg->ioa_mailbox);
7512
dcbad00e 7513 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 7514 ipr_unit_check_no_data(ioa_cfg);
7515 return;
7516 }
7517
7518 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7519 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7520 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7521
dcbad00e
WB		 7522 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7523 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7524 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 7525 ipr_unit_check_no_data(ioa_cfg);
7526 return;
7527 }
7528
7529 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 7530 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7531 length = be32_to_cpu(sdt.entry[0].end_token);
7532 else
7533 length = (be32_to_cpu(sdt.entry[0].end_token) -
7534 be32_to_cpu(sdt.entry[0].start_token)) &
7535 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 7536
7537 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7538 struct ipr_hostrcb, queue);
7539 list_del(&hostrcb->queue);
7540 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7541
7542 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 7543 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 7544 (__be32 *)&hostrcb->hcam,
7545 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7546
65f56475 7547 if (!rc) {
1da177e4 7548 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 7549 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 7550 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7551 ioa_cfg->sdt_state == GET_DUMP)
7552 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7553 } else
1da177e4
LT		 7554 ipr_unit_check_no_data(ioa_cfg);
7555
7556 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7557}
7558
110def85
WB		 7559/**
7560 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7561 * @ipr_cmd: ipr command struct
7562 *
7563 * Description: This function will call to get the unit check buffer.
7564 *
7565 * Return value:
7566 * IPR_RC_JOB_RETURN
7567 **/
7568static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7569{
7570 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7571
7572 ENTER;
7573 ioa_cfg->ioa_unit_checked = 0;
7574 ipr_get_unit_check_buffer(ioa_cfg);
7575 ipr_cmd->job_step = ipr_reset_alert;
7576 ipr_reset_start_timer(ipr_cmd, 0);
7577
7578 LEAVE;
7579 return IPR_RC_JOB_RETURN;
7580}
7581
1da177e4
LT		 7582/**
7583 * ipr_reset_restore_cfg_space - Restore PCI config space.
7584 * @ipr_cmd: ipr command struct
7585 *
7586 * Description: This function restores the saved PCI config space of
7587 * the adapter, fails all outstanding ops back to the callers, and
7588 * fetches the dump/unit check if applicable to this reset.
7589 *
7590 * Return value:
7591 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7592 **/
7593static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7594{
7595 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 7596 u32 int_reg;
1da177e4
LT		 7597
7598 ENTER;
99c965dd 7599 ioa_cfg->pdev->state_saved = true;
1d3c16a8 7600 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 7601
7602 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 7603 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 7604 return IPR_RC_JOB_CONTINUE;
7605 }
7606
7607 ipr_fail_all_ops(ioa_cfg);
7608
8701f185
WB		 7609 if (ioa_cfg->sis64) {
7610 /* Set the adapter to the correct endian mode. */
7611 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7612 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7613 }
7614
1da177e4 7615 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 7616 if (ioa_cfg->sis64) {
7617 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7618 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7619 return IPR_RC_JOB_RETURN;
7620 } else {
7621 ioa_cfg->ioa_unit_checked = 0;
7622 ipr_get_unit_check_buffer(ioa_cfg);
7623 ipr_cmd->job_step = ipr_reset_alert;
7624 ipr_reset_start_timer(ipr_cmd, 0);
7625 return IPR_RC_JOB_RETURN;
7626 }
1da177e4
LT		 7627 }
7628
7629 if (ioa_cfg->in_ioa_bringdown) {
7630 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7631 } else {
7632 ipr_cmd->job_step = ipr_reset_enable_ioa;
7633
7634 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 7635 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 7636 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 7637 if (ioa_cfg->sis64)
7638 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
7639 else
7640 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 7641 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7642 schedule_work(&ioa_cfg->work_q);
7643 return IPR_RC_JOB_RETURN;
7644 }
7645 }
7646
438b0331 7647 LEAVE;
1da177e4
LT		 7648 return IPR_RC_JOB_CONTINUE;
7649}
7650
e619e1a7
BK		 7651/**
7652 * ipr_reset_bist_done - BIST has completed on the adapter.
7653 * @ipr_cmd: ipr command struct
7654 *
7655 * Description: Unblock config space and resume the reset process.
7656 *
7657 * Return value:
7658 * IPR_RC_JOB_CONTINUE
7659 **/
7660static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7661{
fb51ccbf
JK		 7662 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7663
e619e1a7 7664 ENTER;
fb51ccbf
JK		 7665 if (ioa_cfg->cfg_locked)
7666 pci_cfg_access_unlock(ioa_cfg->pdev);
7667 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 7668 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7669 LEAVE;
7670 return IPR_RC_JOB_CONTINUE;
7671}
7672
1da177e4
LT		 7673/**
7674 * ipr_reset_start_bist - Run BIST on the adapter.
7675 * @ipr_cmd: ipr command struct
7676 *
7677 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7678 *
7679 * Return value:
7680 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7681 **/
7682static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7683{
7684 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 7685 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 7686
7687 ENTER;
cb237ef7
WB		 7688 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7689 writel(IPR_UPROCI_SIS64_START_BIST,
7690 ioa_cfg->regs.set_uproc_interrupt_reg32);
7691 else
7692 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7693
7694 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 7695 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 7696 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7697 rc = IPR_RC_JOB_RETURN;
cb237ef7 7698 } else {
fb51ccbf
JK		 7699 if (ioa_cfg->cfg_locked)
7700 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
7701 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 7702 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7703 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7704 }
7705
7706 LEAVE;
7707 return rc;
7708}
7709
463fc696
BK		 7710/**
7711 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7712 * @ipr_cmd: ipr command struct
7713 *
7714 * Description: This clears PCI reset to the adapter and delays two seconds.
7715 *
7716 * Return value:
7717 * IPR_RC_JOB_RETURN
7718 **/
7719static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7720{
7721 ENTER;
7722 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7723 ipr_cmd->job_step = ipr_reset_bist_done;
7724 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7725 LEAVE;
7726 return IPR_RC_JOB_RETURN;
7727}
7728
7729/**
7730 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7731 * @ipr_cmd: ipr command struct
7732 *
7733 * Description: This asserts PCI reset to the adapter.
7734 *
7735 * Return value:
7736 * IPR_RC_JOB_RETURN
7737 **/
7738static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7739{
7740 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7741 struct pci_dev *pdev = ioa_cfg->pdev;
7742
7743 ENTER;
463fc696
BK		 7744 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7745 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7746 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7747 LEAVE;
7748 return IPR_RC_JOB_RETURN;
7749}
7750
fb51ccbf
JK		 7751/**
7752 * ipr_reset_block_config_access_wait - Wait for permission to block config access
7753 * @ipr_cmd: ipr command struct
7754 *
7755 * Description: This attempts to block config access to the IOA.
7756 *
7757 * Return value:
7758 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7759 **/
7760static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
7761{
7762 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7763 int rc = IPR_RC_JOB_CONTINUE;
7764
7765 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
7766 ioa_cfg->cfg_locked = 1;
7767 ipr_cmd->job_step = ioa_cfg->reset;
7768 } else {
7769 if (ipr_cmd->u.time_left) {
7770 rc = IPR_RC_JOB_RETURN;
7771 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7772 ipr_reset_start_timer(ipr_cmd,
7773 IPR_CHECK_FOR_RESET_TIMEOUT);
7774 } else {
7775 ipr_cmd->job_step = ioa_cfg->reset;
7776 dev_err(&ioa_cfg->pdev->dev,
7777 "Timed out waiting to lock config access. Resetting anyway.\n");
7778 }
7779 }
7780
7781 return rc;
7782}
7783
7784/**
7785 * ipr_reset_block_config_access - Block config access to the IOA
7786 * @ipr_cmd: ipr command struct
7787 *
7788 * Description: This attempts to block config access to the IOA
7789 *
7790 * Return value:
7791 * IPR_RC_JOB_CONTINUE
7792 **/
7793static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
7794{
7795 ipr_cmd->ioa_cfg->cfg_locked = 0;
7796 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
7797 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7798 return IPR_RC_JOB_CONTINUE;
7799}
7800
1da177e4
LT		 7801/**
7802 * ipr_reset_allowed - Query whether or not IOA can be reset
7803 * @ioa_cfg: ioa config struct
7804 *
7805 * Return value:
7806 * 0 if reset not allowed / non-zero if reset is allowed
7807 **/
7808static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7809{
7810 volatile u32 temp_reg;
7811
7812 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7813 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7814}
7815
7816/**
7817 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7818 * @ipr_cmd: ipr command struct
7819 *
7820 * Description: This function waits for adapter permission to run BIST,
7821 * then runs BIST. If the adapter does not give permission after a
7822 * reasonable time, we will reset the adapter anyway. The impact of
7823 * resetting the adapter without warning the adapter is the risk of
7824 * losing the persistent error log on the adapter. If the adapter is
7825 * reset while it is writing to the flash on the adapter, the flash
7826 * segment will have bad ECC and be zeroed.
7827 *
7828 * Return value:
7829 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7830 **/
7831static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7832{
7833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7834 int rc = IPR_RC_JOB_RETURN;
7835
7836 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7837 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7838 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7839 } else {
fb51ccbf 7840 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 7841 rc = IPR_RC_JOB_CONTINUE;
7842 }
7843
7844 return rc;
7845}
7846
7847/**
8701f185 7848 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 7849 * @ipr_cmd: ipr command struct
7850 *
7851 * Description: This function alerts the adapter that it will be reset.
7852 * If memory space is not currently enabled, proceed directly
7853 * to running BIST on the adapter. The timer must always be started
7854 * so we guarantee we do not run BIST from ipr_isr.
7855 *
7856 * Return value:
7857 * IPR_RC_JOB_RETURN
7858 **/
7859static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7860{
7861 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7862 u16 cmd_reg;
7863 int rc;
7864
7865 ENTER;
7866 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7867
7868 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7869 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 7870 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 7871 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7872 } else {
fb51ccbf 7873 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 7874 }
7875
7876 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7877 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7878
7879 LEAVE;
7880 return IPR_RC_JOB_RETURN;
7881}
7882
7883/**
7884 * ipr_reset_ucode_download_done - Microcode download completion
7885 * @ipr_cmd: ipr command struct
7886 *
7887 * Description: This function unmaps the microcode download buffer.
7888 *
7889 * Return value:
7890 * IPR_RC_JOB_CONTINUE
7891 **/
7892static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7893{
7894 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7895 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7896
7897 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7898 sglist->num_sg, DMA_TO_DEVICE);
7899
7900 ipr_cmd->job_step = ipr_reset_alert;
7901 return IPR_RC_JOB_CONTINUE;
7902}
7903
7904/**
7905 * ipr_reset_ucode_download - Download microcode to the adapter
7906 * @ipr_cmd: ipr command struct
7907 *
7908 * Description: This function checks to see if it there is microcode
7909 * to download to the adapter. If there is, a download is performed.
7910 *
7911 * Return value:
7912 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7913 **/
7914static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7915{
7916 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7917 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7918
7919 ENTER;
7920 ipr_cmd->job_step = ipr_reset_alert;
7921
7922 if (!sglist)
7923 return IPR_RC_JOB_CONTINUE;
7924
7925 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7926 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7927 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7928 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7929 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7930 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7931 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7932
a32c055f
WB		 7933 if (ioa_cfg->sis64)
7934 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7935 else
7936 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 7937 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7938
7939 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7940 IPR_WRITE_BUFFER_TIMEOUT);
7941
7942 LEAVE;
7943 return IPR_RC_JOB_RETURN;
7944}
7945
7946/**
7947 * ipr_reset_shutdown_ioa - Shutdown the adapter
7948 * @ipr_cmd: ipr command struct
7949 *
7950 * Description: This function issues an adapter shutdown of the
7951 * specified type to the specified adapter as part of the
7952 * adapter reset job.
7953 *
7954 * Return value:
7955 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7956 **/
7957static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7958{
7959 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7960 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7961 unsigned long timeout;
7962 int rc = IPR_RC_JOB_CONTINUE;
7963
7964 ENTER;
7965 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7966 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7967 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7968 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7969 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7970
ac09c349
BK		 7971 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7972 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7973 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7974 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 7975 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7976 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 7977 else
ac09c349 7978 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7979
7980 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7981
7982 rc = IPR_RC_JOB_RETURN;
7983 ipr_cmd->job_step = ipr_reset_ucode_download;
7984 } else
7985 ipr_cmd->job_step = ipr_reset_alert;
7986
7987 LEAVE;
7988 return rc;
7989}
7990
7991/**
7992 * ipr_reset_ioa_job - Adapter reset job
7993 * @ipr_cmd: ipr command struct
7994 *
7995 * Description: This function is the job router for the adapter reset job.
7996 *
7997 * Return value:
7998 * none
7999 **/
8000static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8001{
8002 u32 rc, ioasc;
1da177e4
LT		 8003 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8004
8005 do {
96d21f00 8006 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8007
8008 if (ioa_cfg->reset_cmd != ipr_cmd) {
8009 /*
8010 * We are doing nested adapter resets and this is
8011 * not the current reset job.
8012 */
8013 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8014 return;
8015 }
8016
8017 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 8018 rc = ipr_cmd->job_step_failed(ipr_cmd);
8019 if (rc == IPR_RC_JOB_RETURN)
8020 return;
1da177e4
LT		 8021 }
8022
8023 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8024 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4
LT		 8025 rc = ipr_cmd->job_step(ipr_cmd);
8026 } while(rc == IPR_RC_JOB_CONTINUE);
8027}
8028
8029/**
8030 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8031 * @ioa_cfg: ioa config struct
8032 * @job_step: first job step of reset job
8033 * @shutdown_type: shutdown type
8034 *
8035 * Description: This function will initiate the reset of the given adapter
8036 * starting at the selected job step.
8037 * If the caller needs to wait on the completion of the reset,
8038 * the caller must sleep on the reset_wait_q.
8039 *
8040 * Return value:
8041 * none
8042 **/
8043static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8044 int (*job_step) (struct ipr_cmnd *),
8045 enum ipr_shutdown_type shutdown_type)
8046{
8047 struct ipr_cmnd *ipr_cmd;
8048
8049 ioa_cfg->in_reset_reload = 1;
8050 ioa_cfg->allow_cmds = 0;
8051 scsi_block_requests(ioa_cfg->host);
8052
8053 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8054 ioa_cfg->reset_cmd = ipr_cmd;
8055 ipr_cmd->job_step = job_step;
8056 ipr_cmd->u.shutdown_type = shutdown_type;
8057
8058 ipr_reset_ioa_job(ipr_cmd);
8059}
8060
8061/**
8062 * ipr_initiate_ioa_reset - Initiate an adapter reset
8063 * @ioa_cfg: ioa config struct
8064 * @shutdown_type: shutdown type
8065 *
8066 * Description: This function will initiate the reset of the given adapter.
8067 * If the caller needs to wait on the completion of the reset,
8068 * the caller must sleep on the reset_wait_q.
8069 *
8070 * Return value:
8071 * none
8072 **/
8073static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8074 enum ipr_shutdown_type shutdown_type)
8075{
8076 if (ioa_cfg->ioa_is_dead)
8077 return;
8078
41e9a696
BK		 8079 if (ioa_cfg->in_reset_reload) {
8080 if (ioa_cfg->sdt_state == GET_DUMP)
8081 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8082 else if (ioa_cfg->sdt_state == READ_DUMP)
8083 ioa_cfg->sdt_state = ABORT_DUMP;
8084 }
1da177e4
LT		 8085
8086 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8087 dev_err(&ioa_cfg->pdev->dev,
8088 "IOA taken offline - error recovery failed\n");
8089
8090 ioa_cfg->reset_retries = 0;
8091 ioa_cfg->ioa_is_dead = 1;
8092
8093 if (ioa_cfg->in_ioa_bringdown) {
8094 ioa_cfg->reset_cmd = NULL;
8095 ioa_cfg->in_reset_reload = 0;
8096 ipr_fail_all_ops(ioa_cfg);
8097 wake_up_all(&ioa_cfg->reset_wait_q);
8098
8099 spin_unlock_irq(ioa_cfg->host->host_lock);
8100 scsi_unblock_requests(ioa_cfg->host);
8101 spin_lock_irq(ioa_cfg->host->host_lock);
8102 return;
8103 } else {
8104 ioa_cfg->in_ioa_bringdown = 1;
8105 shutdown_type = IPR_SHUTDOWN_NONE;
8106 }
8107 }
8108
8109 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8110 shutdown_type);
8111}
8112
f8a88b19
LV		 8113/**
8114 * ipr_reset_freeze - Hold off all I/O activity
8115 * @ipr_cmd: ipr command struct
8116 *
8117 * Description: If the PCI slot is frozen, hold off all I/O
8118 * activity; then, as soon as the slot is available again,
8119 * initiate an adapter reset.
8120 */
8121static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8122{
8123 /* Disallow new interrupts, avoid loop */
8124 ipr_cmd->ioa_cfg->allow_interrupts = 0;
8125 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
8126 ipr_cmd->done = ipr_reset_ioa_job;
8127 return IPR_RC_JOB_RETURN;
8128}
8129
8130/**
8131 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8132 * @pdev: PCI device struct
8133 *
8134 * Description: This routine is called to tell us that the PCI bus
8135 * is down. Can't do anything here, except put the device driver
8136 * into a holding pattern, waiting for the PCI bus to come back.
8137 */
8138static void ipr_pci_frozen(struct pci_dev *pdev)
8139{
8140 unsigned long flags = 0;
8141 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8142
8143 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8144 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8145 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8146}
8147
8148/**
8149 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8150 * @pdev: PCI device struct
8151 *
8152 * Description: This routine is called by the pci error recovery
8153 * code after the PCI slot has been reset, just before we
8154 * should resume normal operations.
8155 */
8156static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8157{
8158 unsigned long flags = 0;
8159 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8160
8161 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
463fc696
BK		 8162 if (ioa_cfg->needs_warm_reset)
8163 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8164 else
8165 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8166 IPR_SHUTDOWN_NONE);
f8a88b19
LV		 8167 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8168 return PCI_ERS_RESULT_RECOVERED;
8169}
8170
8171/**
8172 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8173 * @pdev: PCI device struct
8174 *
8175 * Description: This routine is called when the PCI bus has
8176 * permanently failed.
8177 */
8178static void ipr_pci_perm_failure(struct pci_dev *pdev)
8179{
8180 unsigned long flags = 0;
8181 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8182
8183 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8184 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8185 ioa_cfg->sdt_state = ABORT_DUMP;
8186 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8187 ioa_cfg->in_ioa_bringdown = 1;
6ff63896 8188 ioa_cfg->allow_cmds = 0;
f8a88b19
LV		 8189 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8190 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8191}
8192
8193/**
8194 * ipr_pci_error_detected - Called when a PCI error is detected.
8195 * @pdev: PCI device struct
8196 * @state: PCI channel state
8197 *
8198 * Description: Called when a PCI error is detected.
8199 *
8200 * Return value:
8201 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8202 */
8203static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8204 pci_channel_state_t state)
8205{
8206 switch (state) {
8207 case pci_channel_io_frozen:
8208 ipr_pci_frozen(pdev);
8209 return PCI_ERS_RESULT_NEED_RESET;
8210 case pci_channel_io_perm_failure:
8211 ipr_pci_perm_failure(pdev);
8212 return PCI_ERS_RESULT_DISCONNECT;
8213 break;
8214 default:
8215 break;
8216 }
8217 return PCI_ERS_RESULT_NEED_RESET;
8218}
8219
1da177e4
LT		 8220/**
8221 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8222 * @ioa_cfg: ioa cfg struct
8223 *
8224 * Description: This is the second phase of adapter intialization
8225 * This function takes care of initilizing the adapter to the point
8226 * where it can accept new commands.
8227
8228 * Return value:
b1c11812 8229 * 0 on success / -EIO on failure
1da177e4
LT		 8230 **/
8231static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8232{
8233 int rc = 0;
8234 unsigned long host_lock_flags = 0;
8235
8236 ENTER;
8237 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8238 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
ce155cce
BK		 8239 if (ioa_cfg->needs_hard_reset) {
8240 ioa_cfg->needs_hard_reset = 0;
8241 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8242 } else
8243 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8244 IPR_SHUTDOWN_NONE);
1da177e4
LT		 8245
8246 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8247 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8248 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8249
8250 if (ioa_cfg->ioa_is_dead) {
8251 rc = -EIO;
8252 } else if (ipr_invalid_adapter(ioa_cfg)) {
8253 if (!ipr_testmode)
8254 rc = -EIO;
8255
8256 dev_err(&ioa_cfg->pdev->dev,
8257 "Adapter not supported in this hardware configuration.\n");
8258 }
8259
8260 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8261
8262 LEAVE;
8263 return rc;
8264}
8265
8266/**
8267 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8268 * @ioa_cfg: ioa config struct
8269 *
8270 * Return value:
8271 * none
8272 **/
8273static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8274{
8275 int i;
8276
8277 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8278 if (ioa_cfg->ipr_cmnd_list[i])
8279 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8280 ioa_cfg->ipr_cmnd_list[i],
8281 ioa_cfg->ipr_cmnd_list_dma[i]);
8282
8283 ioa_cfg->ipr_cmnd_list[i] = NULL;
8284 }
8285
8286 if (ioa_cfg->ipr_cmd_pool)
8287 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8288
8289 ioa_cfg->ipr_cmd_pool = NULL;
8290}
8291
8292/**
8293 * ipr_free_mem - Frees memory allocated for an adapter
8294 * @ioa_cfg: ioa cfg struct
8295 *
8296 * Return value:
8297 * nothing
8298 **/
8299static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8300{
8301 int i;
8302
8303 kfree(ioa_cfg->res_entries);
8304 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8305 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8306 ipr_free_cmd_blks(ioa_cfg);
8307 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8308 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
3e7ebdfa
WB		 8309 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8310 ioa_cfg->u.cfg_table,
1da177e4
LT		 8311 ioa_cfg->cfg_table_dma);
8312
8313 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8314 pci_free_consistent(ioa_cfg->pdev,
8315 sizeof(struct ipr_hostrcb),
8316 ioa_cfg->hostrcb[i],
8317 ioa_cfg->hostrcb_dma[i]);
8318 }
8319
8320 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8321 kfree(ioa_cfg->trace);
8322}
8323
8324/**
8325 * ipr_free_all_resources - Free all allocated resources for an adapter.
8326 * @ipr_cmd: ipr command struct
8327 *
8328 * This function frees all allocated resources for the
8329 * specified adapter.
8330 *
8331 * Return value:
8332 * none
8333 **/
8334static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8335{
8336 struct pci_dev *pdev = ioa_cfg->pdev;
8337
8338 ENTER;
8339 free_irq(pdev->irq, ioa_cfg);
5a9ef25b 8340 pci_disable_msi(pdev);
1da177e4
LT		 8341 iounmap(ioa_cfg->hdw_dma_regs);
8342 pci_release_regions(pdev);
8343 ipr_free_mem(ioa_cfg);
8344 scsi_host_put(ioa_cfg->host);
8345 pci_disable_device(pdev);
8346 LEAVE;
8347}
8348
8349/**
8350 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8351 * @ioa_cfg: ioa config struct
8352 *
8353 * Return value:
8354 * 0 on success / -ENOMEM on allocation failure
8355 **/
8356static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8357{
8358 struct ipr_cmnd *ipr_cmd;
8359 struct ipr_ioarcb *ioarcb;
8360 dma_addr_t dma_addr;
8361 int i;
8362
8363 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
a32c055f 8364 sizeof(struct ipr_cmnd), 16, 0);
1da177e4
LT		 8365
8366 if (!ioa_cfg->ipr_cmd_pool)
8367 return -ENOMEM;
8368
8369 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
e94b1766 8370 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 8371
8372 if (!ipr_cmd) {
8373 ipr_free_cmd_blks(ioa_cfg);
8374 return -ENOMEM;
8375 }
8376
8377 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8378 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8379 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8380
8381 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 8382 ipr_cmd->dma_addr = dma_addr;
8383 if (ioa_cfg->sis64)
8384 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8385 else
8386 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8387
1da177e4 8388 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 8389 if (ioa_cfg->sis64) {
8390 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8391 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8392 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 8393 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 8394 } else {
8395 ioarcb->write_ioadl_addr =
8396 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8397 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8398 ioarcb->ioasa_host_pci_addr =
96d21f00 8399 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 8400 }
1da177e4
LT		 8401 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8402 ipr_cmd->cmd_index = i;
8403 ipr_cmd->ioa_cfg = ioa_cfg;
8404 ipr_cmd->sense_buffer_dma = dma_addr +
8405 offsetof(struct ipr_cmnd, sense_buffer);
8406
8407 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8408 }
8409
8410 return 0;
8411}
8412
8413/**
8414 * ipr_alloc_mem - Allocate memory for an adapter
8415 * @ioa_cfg: ioa config struct
8416 *
8417 * Return value:
8418 * 0 on success / non-zero for error
8419 **/
8420static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8421{
8422 struct pci_dev *pdev = ioa_cfg->pdev;
8423 int i, rc = -ENOMEM;
8424
8425 ENTER;
0bc42e35 8426 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 8427 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 8428
8429 if (!ioa_cfg->res_entries)
8430 goto out;
8431
3e7ebdfa
WB		 8432 if (ioa_cfg->sis64) {
8433 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8434 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8435 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8436 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8437 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8438 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8439 }
8440
8441 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 8442 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 8443 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8444 }
1da177e4
LT		 8445
8446 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8447 sizeof(struct ipr_misc_cbs),
8448 &ioa_cfg->vpd_cbs_dma);
8449
8450 if (!ioa_cfg->vpd_cbs)
8451 goto out_free_res_entries;
8452
8453 if (ipr_alloc_cmd_blks(ioa_cfg))
8454 goto out_free_vpd_cbs;
8455
8456 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8457 sizeof(u32) * IPR_NUM_CMD_BLKS,
8458 &ioa_cfg->host_rrq_dma);
8459
8460 if (!ioa_cfg->host_rrq)
8461 goto out_ipr_free_cmd_blocks;
8462
3e7ebdfa
WB		 8463 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8464 ioa_cfg->cfg_table_size,
8465 &ioa_cfg->cfg_table_dma);
1da177e4 8466
3e7ebdfa 8467 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 8468 goto out_free_host_rrq;
8469
8470 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8471 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8472 sizeof(struct ipr_hostrcb),
8473 &ioa_cfg->hostrcb_dma[i]);
8474
8475 if (!ioa_cfg->hostrcb[i])
8476 goto out_free_hostrcb_dma;
8477
8478 ioa_cfg->hostrcb[i]->hostrcb_dma =
8479 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 8480 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 8481 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8482 }
8483
0bc42e35 8484 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 8485 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8486
8487 if (!ioa_cfg->trace)
8488 goto out_free_hostrcb_dma;
8489
1da177e4
LT		 8490 rc = 0;
8491out:
8492 LEAVE;
8493 return rc;
8494
8495out_free_hostrcb_dma:
8496 while (i-- > 0) {
8497 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8498 ioa_cfg->hostrcb[i],
8499 ioa_cfg->hostrcb_dma[i]);
8500 }
3e7ebdfa
WB		 8501 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8502 ioa_cfg->u.cfg_table,
8503 ioa_cfg->cfg_table_dma);
1da177e4
LT		 8504out_free_host_rrq:
8505 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8506 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8507out_ipr_free_cmd_blocks:
8508 ipr_free_cmd_blks(ioa_cfg);
8509out_free_vpd_cbs:
8510 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8511 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8512out_free_res_entries:
8513 kfree(ioa_cfg->res_entries);
8514 goto out;
8515}
8516
8517/**
8518 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8519 * @ioa_cfg: ioa config struct
8520 *
8521 * Return value:
8522 * none
8523 **/
8524static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8525{
8526 int i;
8527
8528 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8529 ioa_cfg->bus_attr[i].bus = i;
8530 ioa_cfg->bus_attr[i].qas_enabled = 0;
8531 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8532 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8533 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8534 else
8535 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8536 }
8537}
8538
8539/**
8540 * ipr_init_ioa_cfg - Initialize IOA config struct
8541 * @ioa_cfg: ioa config struct
8542 * @host: scsi host struct
8543 * @pdev: PCI dev struct
8544 *
8545 * Return value:
8546 * none
8547 **/
8548static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8549 struct Scsi_Host *host, struct pci_dev *pdev)
8550{
8551 const struct ipr_interrupt_offsets *p;
8552 struct ipr_interrupts *t;
8553 void __iomem *base;
8554
8555 ioa_cfg->host = host;
8556 ioa_cfg->pdev = pdev;
8557 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 8558 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 8559 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8560 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8561 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8562 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8563 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8564 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8565 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8566 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8567
8568 INIT_LIST_HEAD(&ioa_cfg->free_q);
8569 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8570 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8571 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8572 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8573 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 8574 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 8575 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 8576 init_waitqueue_head(&ioa_cfg->msi_wait_q);
1da177e4
LT		 8577 ioa_cfg->sdt_state = INACTIVE;
8578
8579 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 8580 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 8581
3e7ebdfa
WB		 8582 if (ioa_cfg->sis64) {
8583 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8584 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8585 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8586 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8587 } else {
8588 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8589 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8590 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8591 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8592 }
1da177e4
LT		 8593 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8594 host->unique_id = host->host_no;
8595 host->max_cmd_len = IPR_MAX_CDB_LEN;
8596 pci_set_drvdata(pdev, ioa_cfg);
8597
8598 p = &ioa_cfg->chip_cfg->regs;
8599 t = &ioa_cfg->regs;
8600 base = ioa_cfg->hdw_dma_regs;
8601
8602 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8603 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
214777ba 8604 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
1da177e4 8605 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
214777ba 8606 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
1da177e4 8607 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
214777ba 8608 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
1da177e4 8609 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
214777ba 8610 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
1da177e4
LT		 8611 t->ioarrin_reg = base + p->ioarrin_reg;
8612 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
214777ba 8613 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
1da177e4 8614 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
214777ba 8615 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
1da177e4 8616 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
214777ba 8617 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
dcbad00e
WB		 8618
8619 if (ioa_cfg->sis64) {
214777ba 8620 t->init_feedback_reg = base + p->init_feedback_reg;
dcbad00e
WB		 8621 t->dump_addr_reg = base + p->dump_addr_reg;
8622 t->dump_data_reg = base + p->dump_data_reg;
8701f185 8623 t->endian_swap_reg = base + p->endian_swap_reg;
dcbad00e 8624 }
1da177e4
LT		 8625}
8626
8627/**
1be7bd82 8628 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 8629 * @dev_id: PCI device id struct
8630 *
8631 * Return value:
1be7bd82 8632 * ptr to chip information on success / NULL on failure
1da177e4 8633 **/
1be7bd82
WB		 8634static const struct ipr_chip_t * __devinit
8635ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 8636{
8637 int i;
8638
1da177e4
LT		 8639 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8640 if (ipr_chip[i].vendor == dev_id->vendor &&
8641 ipr_chip[i].device == dev_id->device)
1be7bd82 8642 return &ipr_chip[i];
1da177e4
LT		 8643 return NULL;
8644}
8645
95fecd90
WB		 8646/**
8647 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8648 * @pdev: PCI device struct
8649 *
8650 * Description: Simply set the msi_received flag to 1 indicating that
8651 * Message Signaled Interrupts are supported.
8652 *
8653 * Return value:
8654 * 0 on success / non-zero on failure
8655 **/
8656static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8657{
8658 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8659 unsigned long lock_flags = 0;
8660 irqreturn_t rc = IRQ_HANDLED;
8661
8662 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8663
8664 ioa_cfg->msi_received = 1;
8665 wake_up(&ioa_cfg->msi_wait_q);
8666
8667 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8668 return rc;
8669}
8670
8671/**
8672 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8673 * @pdev: PCI device struct
8674 *
8675 * Description: The return value from pci_enable_msi() can not always be
8676 * trusted. This routine sets up and initiates a test interrupt to determine
8677 * if the interrupt is received via the ipr_test_intr() service routine.
8678 * If the tests fails, the driver will fall back to LSI.
8679 *
8680 * Return value:
8681 * 0 on success / non-zero on failure
8682 **/
8683static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8684 struct pci_dev *pdev)
8685{
8686 int rc;
8687 volatile u32 int_reg;
8688 unsigned long lock_flags = 0;
8689
8690 ENTER;
8691
8692 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8693 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8694 ioa_cfg->msi_received = 0;
8695 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 8696 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 8697 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8698 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8699
8700 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8701 if (rc) {
8702 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8703 return rc;
8704 } else if (ipr_debug)
8705 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8706
214777ba 8707 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 8708 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8709 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8710 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8711
8712 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8713 if (!ioa_cfg->msi_received) {
8714 /* MSI test failed */
8715 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8716 rc = -EOPNOTSUPP;
8717 } else if (ipr_debug)
8718 dev_info(&pdev->dev, "MSI test succeeded.\n");
8719
8720 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8721
8722 free_irq(pdev->irq, ioa_cfg);
8723
8724 LEAVE;
8725
8726 return rc;
8727}
8728
1da177e4
LT		 8729/**
8730 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8731 * @pdev: PCI device struct
8732 * @dev_id: PCI device id struct
8733 *
8734 * Return value:
8735 * 0 on success / non-zero on failure
8736 **/
8737static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8738 const struct pci_device_id *dev_id)
8739{
8740 struct ipr_ioa_cfg *ioa_cfg;
8741 struct Scsi_Host *host;
8742 unsigned long ipr_regs_pci;
8743 void __iomem *ipr_regs;
a2a65a3e 8744 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 8745 volatile u32 mask, uproc, interrupts;
1da177e4
LT		 8746
8747 ENTER;
8748
8749 if ((rc = pci_enable_device(pdev))) {
8750 dev_err(&pdev->dev, "Cannot enable adapter\n");
8751 goto out;
8752 }
8753
8754 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8755
8756 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8757
8758 if (!host) {
8759 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8760 rc = -ENOMEM;
8761 goto out_disable;
8762 }
8763
8764 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8765 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
35a39691
BK		 8766 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8767 sata_port_info.flags, &ipr_sata_ops);
1da177e4 8768
1be7bd82 8769 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 8770
1be7bd82 8771 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 8772 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8773 dev_id->vendor, dev_id->device);
8774 goto out_scsi_host_put;
8775 }
8776
a32c055f
WB		 8777 /* set SIS 32 or SIS 64 */
8778 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 8779 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 8780 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
1be7bd82 8781
5469cb5b
BK		 8782 if (ipr_transop_timeout)
8783 ioa_cfg->transop_timeout = ipr_transop_timeout;
8784 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8785 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8786 else
8787 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8788
44c10138 8789 ioa_cfg->revid = pdev->revision;
463fc696 8790
1da177e4
LT		 8791 ipr_regs_pci = pci_resource_start(pdev, 0);
8792
8793 rc = pci_request_regions(pdev, IPR_NAME);
8794 if (rc < 0) {
8795 dev_err(&pdev->dev,
8796 "Couldn't register memory range of registers\n");
8797 goto out_scsi_host_put;
8798 }
8799
25729a7f 8800 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 8801
8802 if (!ipr_regs) {
8803 dev_err(&pdev->dev,
8804 "Couldn't map memory range of registers\n");
8805 rc = -ENOMEM;
8806 goto out_release_regions;
8807 }
8808
8809 ioa_cfg->hdw_dma_regs = ipr_regs;
8810 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8811 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8812
8813 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8814
8815 pci_set_master(pdev);
8816
a32c055f
WB		 8817 if (ioa_cfg->sis64) {
8818 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8819 if (rc < 0) {
8820 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8821 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8822 }
8823
8824 } else
8825 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8826
1da177e4
LT		 8827 if (rc < 0) {
8828 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8829 goto cleanup_nomem;
8830 }
8831
8832 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8833 ioa_cfg->chip_cfg->cache_line_size);
8834
8835 if (rc != PCIBIOS_SUCCESSFUL) {
8836 dev_err(&pdev->dev, "Write of cache line size failed\n");
8837 rc = -EIO;
8838 goto cleanup_nomem;
8839 }
8840
95fecd90 8841 /* Enable MSI style interrupts if they are supported. */
1be7bd82 8842 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
95fecd90
WB		 8843 rc = ipr_test_msi(ioa_cfg, pdev);
8844 if (rc == -EOPNOTSUPP)
8845 pci_disable_msi(pdev);
8846 else if (rc)
8847 goto out_msi_disable;
8848 else
8849 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8850 } else if (ipr_debug)
8851 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8852
1da177e4
LT		 8853 /* Save away PCI config space for use following IOA reset */
8854 rc = pci_save_state(pdev);
8855
8856 if (rc != PCIBIOS_SUCCESSFUL) {
8857 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8858 rc = -EIO;
f170c684 8859 goto out_msi_disable;
1da177e4
LT		 8860 }
8861
8862 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 8863 goto out_msi_disable;
1da177e4
LT		 8864
8865 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 8866 goto out_msi_disable;
1da177e4 8867
3e7ebdfa
WB		 8868 if (ioa_cfg->sis64)
8869 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8870 + ((sizeof(struct ipr_config_table_entry64)
8871 * ioa_cfg->max_devs_supported)));
8872 else
8873 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8874 + ((sizeof(struct ipr_config_table_entry)
8875 * ioa_cfg->max_devs_supported)));
8876
1da177e4
LT		 8877 rc = ipr_alloc_mem(ioa_cfg);
8878 if (rc < 0) {
8879 dev_err(&pdev->dev,
8880 "Couldn't allocate enough memory for device driver!\n");
f170c684 8881 goto out_msi_disable;
1da177e4
LT		 8882 }
8883
ce155cce
BK		 8884 /*
8885 * If HRRQ updated interrupt is not masked, or reset alert is set,
8886 * the card is in an unknown state and needs a hard reset
8887 */
214777ba
WB		 8888 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8889 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8890 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 8891 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8892 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 8893 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 8894 ioa_cfg->needs_hard_reset = 1;
8895 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8896 ioa_cfg->ioa_unit_checked = 1;
ce155cce 8897
1da177e4 8898 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
95fecd90
WB		 8899 rc = request_irq(pdev->irq, ipr_isr,
8900 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8901 IPR_NAME, ioa_cfg);
1da177e4
LT		 8902
8903 if (rc) {
8904 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8905 pdev->irq, rc);
8906 goto cleanup_nolog;
8907 }
8908
463fc696
BK		 8909 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8910 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8911 ioa_cfg->needs_warm_reset = 1;
8912 ioa_cfg->reset = ipr_reset_slot_reset;
8913 } else
8914 ioa_cfg->reset = ipr_reset_start_bist;
8915
1da177e4
LT		 8916 spin_lock(&ipr_driver_lock);
8917 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8918 spin_unlock(&ipr_driver_lock);
8919
8920 LEAVE;
8921out:
8922 return rc;
8923
8924cleanup_nolog:
8925 ipr_free_mem(ioa_cfg);
95fecd90
WB		 8926out_msi_disable:
8927 pci_disable_msi(pdev);
f170c684
JL		 8928cleanup_nomem:
8929 iounmap(ipr_regs);
1da177e4
LT		 8930out_release_regions:
8931 pci_release_regions(pdev);
8932out_scsi_host_put:
8933 scsi_host_put(host);
8934out_disable:
8935 pci_disable_device(pdev);
8936 goto out;
8937}
8938
8939/**
8940 * ipr_scan_vsets - Scans for VSET devices
8941 * @ioa_cfg: ioa config struct
8942 *
8943 * Description: Since the VSET resources do not follow SAM in that we can have
8944 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8945 *
8946 * Return value:
8947 * none
8948 **/
8949static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8950{
8951 int target, lun;
8952
8953 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8954 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8955 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8956}
8957
8958/**
8959 * ipr_initiate_ioa_bringdown - Bring down an adapter
8960 * @ioa_cfg: ioa config struct
8961 * @shutdown_type: shutdown type
8962 *
8963 * Description: This function will initiate bringing down the adapter.
8964 * This consists of issuing an IOA shutdown to the adapter
8965 * to flush the cache, and running BIST.
8966 * If the caller needs to wait on the completion of the reset,
8967 * the caller must sleep on the reset_wait_q.
8968 *
8969 * Return value:
8970 * none
8971 **/
8972static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8973 enum ipr_shutdown_type shutdown_type)
8974{
8975 ENTER;
8976 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8977 ioa_cfg->sdt_state = ABORT_DUMP;
8978 ioa_cfg->reset_retries = 0;
8979 ioa_cfg->in_ioa_bringdown = 1;
8980 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8981 LEAVE;
8982}
8983
8984/**
8985 * __ipr_remove - Remove a single adapter
8986 * @pdev: pci device struct
8987 *
8988 * Adapter hot plug remove entry point.
8989 *
8990 * Return value:
8991 * none
8992 **/
8993static void __ipr_remove(struct pci_dev *pdev)
8994{
8995 unsigned long host_lock_flags = 0;
8996 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8997 ENTER;
8998
8999 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
970ea294
BK		 9000 while(ioa_cfg->in_reset_reload) {
9001 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9002 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9003 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9004 }
9005
1da177e4
LT		 9006 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9007
9008 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9009 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
a684b8da 9010 flush_work_sync(&ioa_cfg->work_q);
1da177e4
LT		 9011 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9012
9013 spin_lock(&ipr_driver_lock);
9014 list_del(&ioa_cfg->queue);
9015 spin_unlock(&ipr_driver_lock);
9016
9017 if (ioa_cfg->sdt_state == ABORT_DUMP)
9018 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9019 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9020
9021 ipr_free_all_resources(ioa_cfg);
9022
9023 LEAVE;
9024}
9025
9026/**
9027 * ipr_remove - IOA hot plug remove entry point
9028 * @pdev: pci device struct
9029 *
9030 * Adapter hot plug remove entry point.
9031 *
9032 * Return value:
9033 * none
9034 **/
f381642d 9035static void __devexit ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 9036{
9037 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9038
9039 ENTER;
9040
ee959b00 9041 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 9042 &ipr_trace_attr);
ee959b00 9043 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9044 &ipr_dump_attr);
9045 scsi_remove_host(ioa_cfg->host);
9046
9047 __ipr_remove(pdev);
9048
9049 LEAVE;
9050}
9051
9052/**
9053 * ipr_probe - Adapter hot plug add entry point
9054 *
9055 * Return value:
9056 * 0 on success / non-zero on failure
9057 **/
9058static int __devinit ipr_probe(struct pci_dev *pdev,
9059 const struct pci_device_id *dev_id)
9060{
9061 struct ipr_ioa_cfg *ioa_cfg;
9062 int rc;
9063
9064 rc = ipr_probe_ioa(pdev, dev_id);
9065
9066 if (rc)
9067 return rc;
9068
9069 ioa_cfg = pci_get_drvdata(pdev);
9070 rc = ipr_probe_ioa_part2(ioa_cfg);
9071
9072 if (rc) {
9073 __ipr_remove(pdev);
9074 return rc;
9075 }
9076
9077 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9078
9079 if (rc) {
9080 __ipr_remove(pdev);
9081 return rc;
9082 }
9083
ee959b00 9084 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9085 &ipr_trace_attr);
9086
9087 if (rc) {
9088 scsi_remove_host(ioa_cfg->host);
9089 __ipr_remove(pdev);
9090 return rc;
9091 }
9092
ee959b00 9093 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9094 &ipr_dump_attr);
9095
9096 if (rc) {
ee959b00 9097 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9098 &ipr_trace_attr);
9099 scsi_remove_host(ioa_cfg->host);
9100 __ipr_remove(pdev);
9101 return rc;
9102 }
9103
9104 scsi_scan_host(ioa_cfg->host);
9105 ipr_scan_vsets(ioa_cfg);
9106 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9107 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 9108 ioa_cfg->host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9109 schedule_work(&ioa_cfg->work_q);
9110 return 0;
9111}
9112
9113/**
9114 * ipr_shutdown - Shutdown handler.
d18c3db5 9115 * @pdev: pci device struct
1da177e4
LT		 9116 *
9117 * This function is invoked upon system shutdown/reboot. It will issue
9118 * an adapter shutdown to the adapter to flush the write cache.
9119 *
9120 * Return value:
9121 * none
9122 **/
d18c3db5 9123static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 9124{
d18c3db5 9125 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4
LT		 9126 unsigned long lock_flags = 0;
9127
9128 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 9129 while(ioa_cfg->in_reset_reload) {
9130 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9131 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9132 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9133 }
9134
1da177e4
LT		 9135 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9136 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9137 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9138}
9139
9140static struct pci_device_id ipr_pci_table[] __devinitdata = {
9141 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9142 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 9143 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9144 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 9145 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9146 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 9147 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9148 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 9149 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9150 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 9151 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9152 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 9153 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9154 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 9155 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 9156 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9157 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9158 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 9159 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9160 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 9161 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9162 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9163 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 9164 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9165 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9166 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 9167 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9168 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 9169 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9170 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 9171 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 9172 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9173 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 9174 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 9175 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9176 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 9177 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9178 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 9179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9180 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 9181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 9182 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 9183 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 9184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 9185 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 9186 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 9187 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 9188 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9189 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9190 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9192 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9193 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 9194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9195 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9197 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9198 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9199 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
5a918353
WB		 9200 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9201 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 9202 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9203 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 9204 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9205 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 9206 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9207 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 9208 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9209 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 9210 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9211 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
9212 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 9213 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
1da177e4
LT		 9214 { }
9215};
9216MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9217
f8a88b19
LV		 9218static struct pci_error_handlers ipr_err_handler = {
9219 .error_detected = ipr_pci_error_detected,
9220 .slot_reset = ipr_pci_slot_reset,
9221};
9222
1da177e4
LT		 9223static struct pci_driver ipr_driver = {
9224 .name = IPR_NAME,
9225 .id_table = ipr_pci_table,
9226 .probe = ipr_probe,
f381642d 9227 .remove = __devexit_p(ipr_remove),
d18c3db5 9228 .shutdown = ipr_shutdown,
f8a88b19 9229 .err_handler = &ipr_err_handler,
1da177e4
LT		 9230};
9231
f72919ec
WB		 9232/**
9233 * ipr_halt_done - Shutdown prepare completion
9234 *
9235 * Return value:
9236 * none
9237 **/
9238static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9239{
9240 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9241
9242 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9243}
9244
9245/**
9246 * ipr_halt - Issue shutdown prepare to all adapters
9247 *
9248 * Return value:
9249 * NOTIFY_OK on success / NOTIFY_DONE on failure
9250 **/
9251static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9252{
9253 struct ipr_cmnd *ipr_cmd;
9254 struct ipr_ioa_cfg *ioa_cfg;
9255 unsigned long flags = 0;
9256
9257 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9258 return NOTIFY_DONE;
9259
9260 spin_lock(&ipr_driver_lock);
9261
9262 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9263 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9264 if (!ioa_cfg->allow_cmds) {
9265 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9266 continue;
9267 }
9268
9269 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9270 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9271 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9272 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9273 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9274
9275 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9277 }
9278 spin_unlock(&ipr_driver_lock);
9279
9280 return NOTIFY_OK;
9281}
9282
9283static struct notifier_block ipr_notifier = {
9284 ipr_halt, NULL, 0
9285};
9286
1da177e4
LT		 9287/**
9288 * ipr_init - Module entry point
9289 *
9290 * Return value:
9291 * 0 on success / negative value on failure
9292 **/
9293static int __init ipr_init(void)
9294{
9295 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9296 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9297
f72919ec 9298 register_reboot_notifier(&ipr_notifier);
dcbccbde 9299 return pci_register_driver(&ipr_driver);
1da177e4
LT		 9300}
9301
9302/**
9303 * ipr_exit - Module unload
9304 *
9305 * Module unload entry point.
9306 *
9307 * Return value:
9308 * none
9309 **/
9310static void __exit ipr_exit(void)
9311{
f72919ec 9312 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 9313 pci_unregister_driver(&ipr_driver);
9314}
9315
9316module_init(ipr_init);
9317module_exit(ipr_exit);
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