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[SCSI] mpt2sas : WarpDrive New product SSS6200 support added
[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
1da177e4
LT		 63#include <linux/ioport.h>
64#include <linux/delay.h>
65#include <linux/pci.h>
66#include <linux/wait.h>
67#include <linux/spinlock.h>
68#include <linux/sched.h>
69#include <linux/interrupt.h>
70#include <linux/blkdev.h>
71#include <linux/firmware.h>
72#include <linux/module.h>
73#include <linux/moduleparam.h>
35a39691 74#include <linux/libata.h>
0ce3a7e5 75#include <linux/hdreg.h>
f72919ec 76#include <linux/reboot.h>
3e7ebdfa 77#include <linux/stringify.h>
1da177e4
LT		 78#include <asm/io.h>
79#include <asm/irq.h>
80#include <asm/processor.h>
81#include <scsi/scsi.h>
82#include <scsi/scsi_host.h>
83#include <scsi/scsi_tcq.h>
84#include <scsi/scsi_eh.h>
85#include <scsi/scsi_cmnd.h>
1da177e4
LT		 86#include "ipr.h"
87
88/*
89 * Global Data
90 */
b7d68ca3 91static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 92static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
93static unsigned int ipr_max_speed = 1;
94static int ipr_testmode = 0;
95static unsigned int ipr_fastfail = 0;
5469cb5b 96static unsigned int ipr_transop_timeout = 0;
d3c74871 97static unsigned int ipr_debug = 0;
3e7ebdfa 98static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 99static unsigned int ipr_dual_ioa_raid = 1;
1da177e4
LT		 100static DEFINE_SPINLOCK(ipr_driver_lock);
101
102/* This table describes the differences between DMA controller chips */
103static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4
LT		 105 .mailbox = 0x0042C,
106 .cache_line_size = 0x20,
107 {
108 .set_interrupt_mask_reg = 0x0022C,
109 .clr_interrupt_mask_reg = 0x00230,
214777ba 110 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 111 .sense_interrupt_mask_reg = 0x0022C,
214777ba 112 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 113 .clr_interrupt_reg = 0x00228,
214777ba 114 .clr_interrupt_reg32 = 0x00228,
1da177e4 115 .sense_interrupt_reg = 0x00224,
214777ba 116 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 117 .ioarrin_reg = 0x00404,
118 .sense_uproc_interrupt_reg = 0x00214,
214777ba 119 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 120 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 121 .set_uproc_interrupt_reg32 = 0x00214,
122 .clr_uproc_interrupt_reg = 0x00218,
123 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 124 }
125 },
126 { /* Snipe and Scamp */
127 .mailbox = 0x0052C,
128 .cache_line_size = 0x20,
129 {
130 .set_interrupt_mask_reg = 0x00288,
131 .clr_interrupt_mask_reg = 0x0028C,
214777ba 132 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 133 .sense_interrupt_mask_reg = 0x00288,
214777ba 134 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 135 .clr_interrupt_reg = 0x00284,
214777ba 136 .clr_interrupt_reg32 = 0x00284,
1da177e4 137 .sense_interrupt_reg = 0x00280,
214777ba 138 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 139 .ioarrin_reg = 0x00504,
140 .sense_uproc_interrupt_reg = 0x00290,
214777ba 141 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 142 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 143 .set_uproc_interrupt_reg32 = 0x00290,
144 .clr_uproc_interrupt_reg = 0x00294,
145 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 146 }
147 },
a74c1639 148 { /* CRoC */
110def85 149 .mailbox = 0x00044,
a74c1639
WB		 150 .cache_line_size = 0x20,
151 {
152 .set_interrupt_mask_reg = 0x00010,
153 .clr_interrupt_mask_reg = 0x00018,
214777ba 154 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 155 .sense_interrupt_mask_reg = 0x00010,
214777ba 156 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 157 .clr_interrupt_reg = 0x00008,
214777ba 158 .clr_interrupt_reg32 = 0x0000C,
a74c1639 159 .sense_interrupt_reg = 0x00000,
214777ba 160 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 161 .ioarrin_reg = 0x00070,
162 .sense_uproc_interrupt_reg = 0x00020,
214777ba 163 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 164 .set_uproc_interrupt_reg = 0x00020,
214777ba 165 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 166 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 167 .clr_uproc_interrupt_reg32 = 0x0002C,
168 .init_feedback_reg = 0x0005C,
dcbad00e 169 .dump_addr_reg = 0x00064,
8701f185
WB		 170 .dump_data_reg = 0x00068,
171 .endian_swap_reg = 0x00084
a74c1639
WB		 172 }
173 },
1da177e4
LT		 174};
175
176static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 177 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 186};
187
188static int ipr_max_bus_speeds [] = {
189 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
190};
191
192MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
193MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
194module_param_named(max_speed, ipr_max_speed, uint, 0);
195MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
196module_param_named(log_level, ipr_log_level, uint, 0);
197MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
198module_param_named(testmode, ipr_testmode, int, 0);
199MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 200module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 201MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
202module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
203MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 204module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 205MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 206module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
207MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 208module_param_named(max_devs, ipr_max_devs, int, 0);
209MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
210 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
1da177e4
LT		 211MODULE_LICENSE("GPL");
212MODULE_VERSION(IPR_DRIVER_VERSION);
213
1da177e4
LT		 214/* A constant array of IOASCs/URCs/Error Messages */
215static const
216struct ipr_error_table_t ipr_error_table[] = {
933916f3 217 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 218 "8155: An unknown error was received"},
219 {0x00330000, 0, 0,
220 "Soft underlength error"},
221 {0x005A0000, 0, 0,
222 "Command to be cancelled not found"},
223 {0x00808000, 0, 0,
224 "Qualified success"},
933916f3 225 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 226 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 227 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 228 "4101: Soft device bus fabric error"},
5aa3a333
WB		 229 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
230 "FFFC: Logical block guard error recovered by the device"},
231 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
232 "FFFC: Logical block reference tag error recovered by the device"},
233 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
234 "4171: Recovered scatter list tag / sequence number error"},
235 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
236 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
237 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
239 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "FFFD: Recovered logical block reference tag error detected by the IOA"},
241 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
242 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 243 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 244 "FFF9: Device sector reassign successful"},
933916f3 245 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 246 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 247 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 248 "7001: IOA sector reassignment successful"},
933916f3 249 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 250 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 251 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 252 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 253 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 254 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 255 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 256 "FFF6: Device hardware error recovered by the IOA"},
933916f3 257 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 258 "FFF6: Device hardware error recovered by the device"},
933916f3 259 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 260 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 261 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 262 "FFFA: Undefined device response recovered by the IOA"},
933916f3 263 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 264 "FFF6: Device bus error, message or command phase"},
933916f3 265 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 266 "FFFE: Task Management Function failed"},
933916f3 267 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 268 "FFF6: Failure prediction threshold exceeded"},
933916f3 269 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 270 "8009: Impending cache battery pack failure"},
271 {0x02040400, 0, 0,
272 "34FF: Disk device format in progress"},
65f56475
BK		 273 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
274 "9070: IOA requested reset"},
1da177e4
LT		 275 {0x023F0000, 0, 0,
276 "Synchronization required"},
277 {0x024E0000, 0, 0,
278 "No ready, IOA shutdown"},
279 {0x025A0000, 0, 0,
280 "Not ready, IOA has been shutdown"},
933916f3 281 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 282 "3020: Storage subsystem configuration error"},
283 {0x03110B00, 0, 0,
284 "FFF5: Medium error, data unreadable, recommend reassign"},
285 {0x03110C00, 0, 0,
286 "7000: Medium error, data unreadable, do not reassign"},
933916f3 287 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 288 "FFF3: Disk media format bad"},
933916f3 289 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 290 "3002: Addressed device failed to respond to selection"},
933916f3 291 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 292 "3100: Device bus error"},
933916f3 293 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 294 "3109: IOA timed out a device command"},
295 {0x04088000, 0, 0,
296 "3120: SCSI bus is not operational"},
933916f3 297 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 298 "4100: Hard device bus fabric error"},
5aa3a333
WB		 299 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
300 "310C: Logical block guard error detected by the device"},
301 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
302 "310C: Logical block reference tag error detected by the device"},
303 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
304 "4170: Scatter list tag / sequence number error"},
305 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
306 "8150: Logical block CRC error on IOA to Host transfer"},
307 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
308 "4170: Logical block sequence number error on IOA to Host transfer"},
309 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
310 "310D: Logical block reference tag error detected by the IOA"},
311 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
312 "310D: Logical block guard error detected by the IOA"},
933916f3 313 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 314 "9000: IOA reserved area data check"},
933916f3 315 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 316 "9001: IOA reserved area invalid data pattern"},
933916f3 317 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 318 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 319 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
320 "Hardware Error, IOA metadata access error"},
933916f3 321 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 322 "102E: Out of alternate sectors for disk storage"},
933916f3 323 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 324 "FFF4: Data transfer underlength error"},
933916f3 325 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 326 "FFF4: Data transfer overlength error"},
933916f3 327 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 328 "3400: Logical unit failure"},
933916f3 329 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 330 "FFF4: Device microcode is corrupt"},
933916f3 331 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 332 "8150: PCI bus error"},
333 {0x04430000, 1, 0,
334 "Unsupported device bus message received"},
933916f3 335 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 336 "FFF4: Disk device problem"},
933916f3 337 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 338 "8150: Permanent IOA failure"},
933916f3 339 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 340 "3010: Disk device returned wrong response to IOA"},
933916f3 341 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 342 "8151: IOA microcode error"},
343 {0x04448500, 0, 0,
344 "Device bus status error"},
933916f3 345 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 346 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 347 {0x04448700, 0, 0,
348 "ATA device status error"},
1da177e4
LT		 349 {0x04490000, 0, 0,
350 "Message reject received from the device"},
933916f3 351 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 352 "8008: A permanent cache battery pack failure occurred"},
933916f3 353 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 354 "9090: Disk unit has been modified after the last known status"},
933916f3 355 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 356 "9081: IOA detected device error"},
933916f3 357 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 358 "9082: IOA detected device error"},
933916f3 359 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 360 "3110: Device bus error, message or command phase"},
933916f3 361 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 362 "3110: SAS Command / Task Management Function failed"},
933916f3 363 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 364 "9091: Incorrect hardware configuration change has been detected"},
933916f3 365 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 366 "9073: Invalid multi-adapter configuration"},
933916f3 367 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 368 "4010: Incorrect connection between cascaded expanders"},
933916f3 369 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 370 "4020: Connections exceed IOA design limits"},
933916f3 371 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 372 "4030: Incorrect multipath connection"},
933916f3 373 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 374 "4110: Unsupported enclosure function"},
933916f3 375 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 376 "FFF4: Command to logical unit failed"},
377 {0x05240000, 1, 0,
378 "Illegal request, invalid request type or request packet"},
379 {0x05250000, 0, 0,
380 "Illegal request, invalid resource handle"},
b0df54bb
BK		 381 {0x05258000, 0, 0,
382 "Illegal request, commands not allowed to this device"},
383 {0x05258100, 0, 0,
384 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 385 {0x05258200, 0, 0,
386 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 387 {0x05260000, 0, 0,
388 "Illegal request, invalid field in parameter list"},
389 {0x05260100, 0, 0,
390 "Illegal request, parameter not supported"},
391 {0x05260200, 0, 0,
392 "Illegal request, parameter value invalid"},
393 {0x052C0000, 0, 0,
394 "Illegal request, command sequence error"},
b0df54bb
BK		 395 {0x052C8000, 1, 0,
396 "Illegal request, dual adapter support not enabled"},
933916f3 397 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 398 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 399 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 400 "9040: Array protection temporarily suspended, protection resuming"},
933916f3 401 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 402 "3140: Device bus not ready to ready transition"},
933916f3 403 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 404 "FFFB: SCSI bus was reset"},
405 {0x06290500, 0, 0,
406 "FFFE: SCSI bus transition to single ended"},
407 {0x06290600, 0, 0,
408 "FFFE: SCSI bus transition to LVD"},
933916f3 409 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 410 "FFFB: SCSI bus was reset by another initiator"},
933916f3 411 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 412 "3029: A device replacement has occurred"},
933916f3 413 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 414 "9051: IOA cache data exists for a missing or failed device"},
933916f3 415 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 416 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 417 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 418 "9025: Disk unit is not supported at its physical location"},
933916f3 419 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 420 "3020: IOA detected a SCSI bus configuration error"},
933916f3 421 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 422 "3150: SCSI bus configuration error"},
933916f3 423 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 424 "9074: Asymmetric advanced function disk configuration"},
933916f3 425 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 426 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 427 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 428 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 429 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 430 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 431 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 432 "9076: Configuration error, missing remote IOA"},
933916f3 433 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 434 "4050: Enclosure does not support a required multipath function"},
b75424fc
WB		 435 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4070: Logically bad block written on device"},
933916f3 437 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 438 "9041: Array protection temporarily suspended"},
933916f3 439 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 440 "9042: Corrupt array parity detected on specified device"},
933916f3 441 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 442 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 443 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 444 "9071: Link operational transition"},
933916f3 445 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 446 "9072: Link not operational transition"},
933916f3 447 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 448 "9032: Array exposed but still protected"},
e435340c
BK		 449 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
450 "70DD: Device forced failed by disrupt device command"},
933916f3 451 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 452 "4061: Multipath redundancy level got better"},
933916f3 453 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 454 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 455 {0x07270000, 0, 0,
456 "Failure due to other device"},
933916f3 457 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 458 "9008: IOA does not support functions expected by devices"},
933916f3 459 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 460 "9010: Cache data associated with attached devices cannot be found"},
933916f3 461 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 462 "9011: Cache data belongs to devices other than those attached"},
933916f3 463 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 464 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 465 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 466 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 467 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 468 "9022: Exposed array is missing a required device"},
933916f3 469 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 470 "9023: Array member(s) not at required physical locations"},
933916f3 471 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 472 "9024: Array not functional due to present hardware configuration"},
933916f3 473 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 474 "9026: Array not functional due to present hardware configuration"},
933916f3 475 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 476 "9027: Array is missing a device and parity is out of sync"},
933916f3 477 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 478 "9028: Maximum number of arrays already exist"},
933916f3 479 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 480 "9050: Required cache data cannot be located for a disk unit"},
933916f3 481 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 482 "9052: Cache data exists for a device that has been modified"},
933916f3 483 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 484 "9054: IOA resources not available due to previous problems"},
933916f3 485 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 486 "9092: Disk unit requires initialization before use"},
933916f3 487 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 488 "9029: Incorrect hardware configuration change has been detected"},
933916f3 489 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 490 "9060: One or more disk pairs are missing from an array"},
933916f3 491 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 492 "9061: One or more disks are missing from an array"},
933916f3 493 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 494 "9062: One or more disks are missing from an array"},
933916f3 495 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 496 "9063: Maximum number of functional arrays has been exceeded"},
497 {0x0B260000, 0, 0,
498 "Aborted command, invalid descriptor"},
499 {0x0B5A0000, 0, 0,
500 "Command terminated by host"}
501};
502
503static const struct ipr_ses_table_entry ipr_ses_table[] = {
504 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
505 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
507 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
508 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
509 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
510 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
511 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
513 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
515 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
516 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
517};
518
519/*
520 * Function Prototypes
521 */
522static int ipr_reset_alert(struct ipr_cmnd *);
523static void ipr_process_ccn(struct ipr_cmnd *);
524static void ipr_process_error(struct ipr_cmnd *);
525static void ipr_reset_ioa_job(struct ipr_cmnd *);
526static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
527 enum ipr_shutdown_type);
528
529#ifdef CONFIG_SCSI_IPR_TRACE
530/**
531 * ipr_trc_hook - Add a trace entry to the driver trace
532 * @ipr_cmd: ipr command struct
533 * @type: trace type
534 * @add_data: additional data
535 *
536 * Return value:
537 * none
538 **/
539static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
540 u8 type, u32 add_data)
541{
542 struct ipr_trace_entry *trace_entry;
543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
544
545 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
546 trace_entry->time = jiffies;
547 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
548 trace_entry->type = type;
a32c055f
WB		 549 if (ipr_cmd->ioa_cfg->sis64)
550 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
551 else
552 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 553 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 554 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
555 trace_entry->u.add_data = add_data;
556}
557#else
558#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
559#endif
560
561/**
562 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
563 * @ipr_cmd: ipr command struct
564 *
565 * Return value:
566 * none
567 **/
568static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
569{
570 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 573 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 574
575 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 576 ioarcb->data_transfer_length = 0;
1da177e4 577 ioarcb->read_data_transfer_length = 0;
a32c055f 578 ioarcb->ioadl_len = 0;
1da177e4 579 ioarcb->read_ioadl_len = 0;
a32c055f 580
96d21f00 581 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 582 ioarcb->u.sis64_addr_data.data_ioadl_addr =
583 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 584 ioasa64->u.gata.status = 0;
585 } else {
a32c055f
WB		 586 ioarcb->write_ioadl_addr =
587 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
588 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 589 ioasa->u.gata.status = 0;
a32c055f
WB		 590 }
591
96d21f00
WB		 592 ioasa->hdr.ioasc = 0;
593 ioasa->hdr.residual_data_len = 0;
1da177e4 594 ipr_cmd->scsi_cmd = NULL;
35a39691 595 ipr_cmd->qc = NULL;
1da177e4
LT		 596 ipr_cmd->sense_buffer[0] = 0;
597 ipr_cmd->dma_use_sg = 0;
598}
599
600/**
601 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
602 * @ipr_cmd: ipr command struct
603 *
604 * Return value:
605 * none
606 **/
607static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
608{
609 ipr_reinit_ipr_cmnd(ipr_cmd);
610 ipr_cmd->u.scratch = 0;
611 ipr_cmd->sibling = NULL;
612 init_timer(&ipr_cmd->timer);
613}
614
615/**
616 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
617 * @ioa_cfg: ioa config struct
618 *
619 * Return value:
620 * pointer to ipr command struct
621 **/
622static
623struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
624{
625 struct ipr_cmnd *ipr_cmd;
626
627 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
628 list_del(&ipr_cmd->queue);
629 ipr_init_ipr_cmnd(ipr_cmd);
630
631 return ipr_cmd;
632}
633
1da177e4
LT		 634/**
635 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
636 * @ioa_cfg: ioa config struct
637 * @clr_ints: interrupts to clear
638 *
639 * This function masks all interrupts on the adapter, then clears the
640 * interrupts specified in the mask
641 *
642 * Return value:
643 * none
644 **/
645static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
646 u32 clr_ints)
647{
648 volatile u32 int_reg;
649
650 /* Stop new interrupts */
651 ioa_cfg->allow_interrupts = 0;
652
653 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 654 if (ioa_cfg->sis64)
655 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
656 else
657 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 658
659 /* Clear any pending interrupts */
214777ba
WB		 660 if (ioa_cfg->sis64)
661 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
662 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 663 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
664}
665
666/**
667 * ipr_save_pcix_cmd_reg - Save PCI-X command register
668 * @ioa_cfg: ioa config struct
669 *
670 * Return value:
671 * 0 on success / -EIO on failure
672 **/
673static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
674{
675 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
676
7dce0e1c
BK		 677 if (pcix_cmd_reg == 0)
678 return 0;
1da177e4
LT		 679
680 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
681 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
682 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
683 return -EIO;
684 }
685
686 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
687 return 0;
688}
689
690/**
691 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
692 * @ioa_cfg: ioa config struct
693 *
694 * Return value:
695 * 0 on success / -EIO on failure
696 **/
697static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
698{
699 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
700
701 if (pcix_cmd_reg) {
702 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
703 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
704 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
705 return -EIO;
706 }
1da177e4
LT		 707 }
708
709 return 0;
710}
711
35a39691
BK		 712/**
713 * ipr_sata_eh_done - done function for aborted SATA commands
714 * @ipr_cmd: ipr command struct
715 *
716 * This function is invoked for ops generated to SATA
717 * devices which are being aborted.
718 *
719 * Return value:
720 * none
721 **/
722static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
723{
724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
725 struct ata_queued_cmd *qc = ipr_cmd->qc;
726 struct ipr_sata_port *sata_port = qc->ap->private_data;
727
728 qc->err_mask |= AC_ERR_OTHER;
729 sata_port->ioasa.status |= ATA_BUSY;
730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
731 ata_qc_complete(qc);
732}
733
1da177e4
LT		 734/**
735 * ipr_scsi_eh_done - mid-layer done function for aborted ops
736 * @ipr_cmd: ipr command struct
737 *
738 * This function is invoked by the interrupt handler for
739 * ops generated by the SCSI mid-layer which are being aborted.
740 *
741 * Return value:
742 * none
743 **/
744static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
745{
746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
748
749 scsi_cmd->result |= (DID_ERROR << 16);
750
63015bc9 751 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 752 scsi_cmd->scsi_done(scsi_cmd);
753 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
754}
755
756/**
757 * ipr_fail_all_ops - Fails all outstanding ops.
758 * @ioa_cfg: ioa config struct
759 *
760 * This function fails all outstanding ops.
761 *
762 * Return value:
763 * none
764 **/
765static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
766{
767 struct ipr_cmnd *ipr_cmd, *temp;
768
769 ENTER;
770 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
771 list_del(&ipr_cmd->queue);
772
96d21f00
WB		 773 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
774 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
1da177e4
LT		 775
776 if (ipr_cmd->scsi_cmd)
777 ipr_cmd->done = ipr_scsi_eh_done;
35a39691
BK		 778 else if (ipr_cmd->qc)
779 ipr_cmd->done = ipr_sata_eh_done;
1da177e4
LT		 780
781 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
782 del_timer(&ipr_cmd->timer);
783 ipr_cmd->done(ipr_cmd);
784 }
785
786 LEAVE;
787}
788
a32c055f
WB		 789/**
790 * ipr_send_command - Send driver initiated requests.
791 * @ipr_cmd: ipr command struct
792 *
793 * This function sends a command to the adapter using the correct write call.
794 * In the case of sis64, calculate the ioarcb size required. Then or in the
795 * appropriate bits.
796 *
797 * Return value:
798 * none
799 **/
800static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
801{
802 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
803 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
804
805 if (ioa_cfg->sis64) {
806 /* The default size is 256 bytes */
807 send_dma_addr |= 0x1;
808
809 /* If the number of ioadls * size of ioadl > 128 bytes,
810 then use a 512 byte ioarcb */
811 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
812 send_dma_addr |= 0x4;
813 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
814 } else
815 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
816}
817
1da177e4
LT		 818/**
819 * ipr_do_req - Send driver initiated requests.
820 * @ipr_cmd: ipr command struct
821 * @done: done function
822 * @timeout_func: timeout function
823 * @timeout: timeout value
824 *
825 * This function sends the specified command to the adapter with the
826 * timeout given. The done function is invoked on command completion.
827 *
828 * Return value:
829 * none
830 **/
831static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
832 void (*done) (struct ipr_cmnd *),
833 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
834{
835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
836
837 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
838
839 ipr_cmd->done = done;
840
841 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
842 ipr_cmd->timer.expires = jiffies + timeout;
843 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
844
845 add_timer(&ipr_cmd->timer);
846
847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
848
849 mb();
a32c055f
WB		 850
851 ipr_send_command(ipr_cmd);
1da177e4
LT		 852}
853
854/**
855 * ipr_internal_cmd_done - Op done function for an internally generated op.
856 * @ipr_cmd: ipr command struct
857 *
858 * This function is the op done function for an internally generated,
859 * blocking op. It simply wakes the sleeping thread.
860 *
861 * Return value:
862 * none
863 **/
864static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
865{
866 if (ipr_cmd->sibling)
867 ipr_cmd->sibling = NULL;
868 else
869 complete(&ipr_cmd->completion);
870}
871
a32c055f
WB		 872/**
873 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
874 * @ipr_cmd: ipr command struct
875 * @dma_addr: dma address
876 * @len: transfer length
877 * @flags: ioadl flag value
878 *
879 * This function initializes an ioadl in the case where there is only a single
880 * descriptor.
881 *
882 * Return value:
883 * nothing
884 **/
885static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
886 u32 len, int flags)
887{
888 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
889 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
890
891 ipr_cmd->dma_use_sg = 1;
892
893 if (ipr_cmd->ioa_cfg->sis64) {
894 ioadl64->flags = cpu_to_be32(flags);
895 ioadl64->data_len = cpu_to_be32(len);
896 ioadl64->address = cpu_to_be64(dma_addr);
897
898 ipr_cmd->ioarcb.ioadl_len =
899 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
900 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
901 } else {
902 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
903 ioadl->address = cpu_to_be32(dma_addr);
904
905 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
906 ipr_cmd->ioarcb.read_ioadl_len =
907 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
908 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
909 } else {
910 ipr_cmd->ioarcb.ioadl_len =
911 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
912 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
913 }
914 }
915}
916
1da177e4
LT		 917/**
918 * ipr_send_blocking_cmd - Send command and sleep on its completion.
919 * @ipr_cmd: ipr command struct
920 * @timeout_func: function to invoke if command times out
921 * @timeout: timeout
922 *
923 * Return value:
924 * none
925 **/
926static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
927 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
928 u32 timeout)
929{
930 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
931
932 init_completion(&ipr_cmd->completion);
933 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
934
935 spin_unlock_irq(ioa_cfg->host->host_lock);
936 wait_for_completion(&ipr_cmd->completion);
937 spin_lock_irq(ioa_cfg->host->host_lock);
938}
939
940/**
941 * ipr_send_hcam - Send an HCAM to the adapter.
942 * @ioa_cfg: ioa config struct
943 * @type: HCAM type
944 * @hostrcb: hostrcb struct
945 *
946 * This function will send a Host Controlled Async command to the adapter.
947 * If HCAMs are currently not allowed to be issued to the adapter, it will
948 * place the hostrcb on the free queue.
949 *
950 * Return value:
951 * none
952 **/
953static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
954 struct ipr_hostrcb *hostrcb)
955{
956 struct ipr_cmnd *ipr_cmd;
957 struct ipr_ioarcb *ioarcb;
958
959 if (ioa_cfg->allow_cmds) {
960 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
961 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
962 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
963
964 ipr_cmd->u.hostrcb = hostrcb;
965 ioarcb = &ipr_cmd->ioarcb;
966
967 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
969 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
970 ioarcb->cmd_pkt.cdb[1] = type;
971 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
972 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
973
a32c055f
WB		 974 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
975 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 976
977 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
978 ipr_cmd->done = ipr_process_ccn;
979 else
980 ipr_cmd->done = ipr_process_error;
981
982 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
983
984 mb();
a32c055f
WB		 985
986 ipr_send_command(ipr_cmd);
1da177e4
LT		 987 } else {
988 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
989 }
990}
991
3e7ebdfa
WB		 992/**
993 * ipr_update_ata_class - Update the ata class in the resource entry
994 * @res: resource entry struct
995 * @proto: cfgte device bus protocol value
996 *
997 * Return value:
998 * none
999 **/
1000static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1001{
1002 switch(proto) {
1003 case IPR_PROTO_SATA:
1004 case IPR_PROTO_SAS_STP:
1005 res->ata_class = ATA_DEV_ATA;
1006 break;
1007 case IPR_PROTO_SATA_ATAPI:
1008 case IPR_PROTO_SAS_STP_ATAPI:
1009 res->ata_class = ATA_DEV_ATAPI;
1010 break;
1011 default:
1012 res->ata_class = ATA_DEV_UNKNOWN;
1013 break;
1014 };
1015}
1016
1da177e4
LT		 1017/**
1018 * ipr_init_res_entry - Initialize a resource entry struct.
1019 * @res: resource entry struct
3e7ebdfa 1020 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1021 *
1022 * Return value:
1023 * none
1024 **/
3e7ebdfa
WB		 1025static void ipr_init_res_entry(struct ipr_resource_entry *res,
1026 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1027{
3e7ebdfa
WB		 1028 int found = 0;
1029 unsigned int proto;
1030 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1031 struct ipr_resource_entry *gscsi_res = NULL;
1032
ee0a90fa 1033 res->needs_sync_complete = 0;
1da177e4
LT		 1034 res->in_erp = 0;
1035 res->add_to_ml = 0;
1036 res->del_from_ml = 0;
1037 res->resetting_device = 0;
1038 res->sdev = NULL;
35a39691 1039 res->sata_port = NULL;
3e7ebdfa
WB		 1040
1041 if (ioa_cfg->sis64) {
1042 proto = cfgtew->u.cfgte64->proto;
1043 res->res_flags = cfgtew->u.cfgte64->res_flags;
1044 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1045 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1046
1047 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1048 sizeof(res->res_path));
1049
1050 res->bus = 0;
0cb992ed
WB		 1051 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1052 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1053 res->lun = scsilun_to_int(&res->dev_lun);
1054
1055 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1056 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1057 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1058 found = 1;
1059 res->target = gscsi_res->target;
1060 break;
1061 }
1062 }
1063 if (!found) {
1064 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1065 ioa_cfg->max_devs_supported);
1066 set_bit(res->target, ioa_cfg->target_ids);
1067 }
3e7ebdfa
WB		 1068 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1069 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1070 res->target = 0;
1071 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1072 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1073 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1074 ioa_cfg->max_devs_supported);
1075 set_bit(res->target, ioa_cfg->array_ids);
1076 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1077 res->bus = IPR_VSET_VIRTUAL_BUS;
1078 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1079 ioa_cfg->max_devs_supported);
1080 set_bit(res->target, ioa_cfg->vset_ids);
1081 } else {
1082 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1083 ioa_cfg->max_devs_supported);
1084 set_bit(res->target, ioa_cfg->target_ids);
1085 }
1086 } else {
1087 proto = cfgtew->u.cfgte->proto;
1088 res->qmodel = IPR_QUEUEING_MODEL(res);
1089 res->flags = cfgtew->u.cfgte->flags;
1090 if (res->flags & IPR_IS_IOA_RESOURCE)
1091 res->type = IPR_RES_TYPE_IOAFP;
1092 else
1093 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1094
1095 res->bus = cfgtew->u.cfgte->res_addr.bus;
1096 res->target = cfgtew->u.cfgte->res_addr.target;
1097 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1098 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1099 }
1100
1101 ipr_update_ata_class(res, proto);
1102}
1103
1104/**
1105 * ipr_is_same_device - Determine if two devices are the same.
1106 * @res: resource entry struct
1107 * @cfgtew: config table entry wrapper struct
1108 *
1109 * Return value:
1110 * 1 if the devices are the same / 0 otherwise
1111 **/
1112static int ipr_is_same_device(struct ipr_resource_entry *res,
1113 struct ipr_config_table_entry_wrapper *cfgtew)
1114{
1115 if (res->ioa_cfg->sis64) {
1116 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1117 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1118 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1119 sizeof(cfgtew->u.cfgte64->lun))) {
1120 return 1;
1121 }
1122 } else {
1123 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1124 res->target == cfgtew->u.cfgte->res_addr.target &&
1125 res->lun == cfgtew->u.cfgte->res_addr.lun)
1126 return 1;
1127 }
1128
1129 return 0;
1130}
1131
1132/**
5adcbeb3 1133 * ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1134 * @res_path: resource path
1135 * @buf: buffer
1136 *
1137 * Return value:
1138 * pointer to buffer
1139 **/
5adcbeb3 1140static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1141{
1142 int i;
5adcbeb3 1143 char *p = buffer;
3e7ebdfa 1144
46d74563 1145 *p = '\0';
5adcbeb3
WB		 1146 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1147 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1148 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1149
1150 return buffer;
1151}
1152
1153/**
1154 * ipr_update_res_entry - Update the resource entry.
1155 * @res: resource entry struct
1156 * @cfgtew: config table entry wrapper struct
1157 *
1158 * Return value:
1159 * none
1160 **/
1161static void ipr_update_res_entry(struct ipr_resource_entry *res,
1162 struct ipr_config_table_entry_wrapper *cfgtew)
1163{
1164 char buffer[IPR_MAX_RES_PATH_LENGTH];
1165 unsigned int proto;
1166 int new_path = 0;
1167
1168 if (res->ioa_cfg->sis64) {
1169 res->flags = cfgtew->u.cfgte64->flags;
1170 res->res_flags = cfgtew->u.cfgte64->res_flags;
75576bb9 1171 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1172
1173 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1174 sizeof(struct ipr_std_inq_data));
1175
1176 res->qmodel = IPR_QUEUEING_MODEL64(res);
1177 proto = cfgtew->u.cfgte64->proto;
1178 res->res_handle = cfgtew->u.cfgte64->res_handle;
1179 res->dev_id = cfgtew->u.cfgte64->dev_id;
1180
1181 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1182 sizeof(res->dev_lun.scsi_lun));
1183
1184 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1185 sizeof(res->res_path))) {
1186 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1187 sizeof(res->res_path));
1188 new_path = 1;
1189 }
1190
1191 if (res->sdev && new_path)
1192 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
5adcbeb3
WB		 1193 ipr_format_res_path(res->res_path, buffer,
1194 sizeof(buffer)));
3e7ebdfa
WB		 1195 } else {
1196 res->flags = cfgtew->u.cfgte->flags;
1197 if (res->flags & IPR_IS_IOA_RESOURCE)
1198 res->type = IPR_RES_TYPE_IOAFP;
1199 else
1200 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1201
1202 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1203 sizeof(struct ipr_std_inq_data));
1204
1205 res->qmodel = IPR_QUEUEING_MODEL(res);
1206 proto = cfgtew->u.cfgte->proto;
1207 res->res_handle = cfgtew->u.cfgte->res_handle;
1208 }
1209
1210 ipr_update_ata_class(res, proto);
1211}
1212
1213/**
1214 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1215 * for the resource.
1216 * @res: resource entry struct
1217 * @cfgtew: config table entry wrapper struct
1218 *
1219 * Return value:
1220 * none
1221 **/
1222static void ipr_clear_res_target(struct ipr_resource_entry *res)
1223{
1224 struct ipr_resource_entry *gscsi_res = NULL;
1225 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1226
1227 if (!ioa_cfg->sis64)
1228 return;
1229
1230 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1231 clear_bit(res->target, ioa_cfg->array_ids);
1232 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1233 clear_bit(res->target, ioa_cfg->vset_ids);
1234 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1235 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1236 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1237 return;
1238 clear_bit(res->target, ioa_cfg->target_ids);
1239
1240 } else if (res->bus == 0)
1241 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1242}
1243
1244/**
1245 * ipr_handle_config_change - Handle a config change from the adapter
1246 * @ioa_cfg: ioa config struct
1247 * @hostrcb: hostrcb
1248 *
1249 * Return value:
1250 * none
1251 **/
1252static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1253 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1254{
1255 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1256 struct ipr_config_table_entry_wrapper cfgtew;
1257 __be32 cc_res_handle;
1258
1da177e4
LT		 1259 u32 is_ndn = 1;
1260
3e7ebdfa
WB		 1261 if (ioa_cfg->sis64) {
1262 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1263 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1264 } else {
1265 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1266 cc_res_handle = cfgtew.u.cfgte->res_handle;
1267 }
1da177e4
LT		 1268
1269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1270 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1271 is_ndn = 0;
1272 break;
1273 }
1274 }
1275
1276 if (is_ndn) {
1277 if (list_empty(&ioa_cfg->free_res_q)) {
1278 ipr_send_hcam(ioa_cfg,
1279 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1280 hostrcb);
1281 return;
1282 }
1283
1284 res = list_entry(ioa_cfg->free_res_q.next,
1285 struct ipr_resource_entry, queue);
1286
1287 list_del(&res->queue);
3e7ebdfa 1288 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1289 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1290 }
1291
3e7ebdfa 1292 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1293
1294 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1295 if (res->sdev) {
1da177e4 1296 res->del_from_ml = 1;
3e7ebdfa 1297 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 1298 if (ioa_cfg->allow_ml_add_del)
1299 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1300 } else {
1301 ipr_clear_res_target(res);
1da177e4 1302 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1303 }
5767a1c4 1304 } else if (!res->sdev || res->del_from_ml) {
1da177e4
LT		 1305 res->add_to_ml = 1;
1306 if (ioa_cfg->allow_ml_add_del)
1307 schedule_work(&ioa_cfg->work_q);
1308 }
1309
1310 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1311}
1312
1313/**
1314 * ipr_process_ccn - Op done function for a CCN.
1315 * @ipr_cmd: ipr command struct
1316 *
1317 * This function is the op done function for a configuration
1318 * change notification host controlled async from the adapter.
1319 *
1320 * Return value:
1321 * none
1322 **/
1323static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1324{
1325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1326 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1327 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1328
1329 list_del(&hostrcb->queue);
1330 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1331
1332 if (ioasc) {
1333 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1334 dev_err(&ioa_cfg->pdev->dev,
1335 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1336
1337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1338 } else {
1339 ipr_handle_config_change(ioa_cfg, hostrcb);
1340 }
1341}
1342
8cf093e2
BK		 1343/**
1344 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1345 * @i: index into buffer
1346 * @buf: string to modify
1347 *
1348 * This function will strip all trailing whitespace, pad the end
1349 * of the string with a single space, and NULL terminate the string.
1350 *
1351 * Return value:
1352 * new length of string
1353 **/
1354static int strip_and_pad_whitespace(int i, char *buf)
1355{
1356 while (i && buf[i] == ' ')
1357 i--;
1358 buf[i+1] = ' ';
1359 buf[i+2] = '\0';
1360 return i + 2;
1361}
1362
1363/**
1364 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1365 * @prefix: string to print at start of printk
1366 * @hostrcb: hostrcb pointer
1367 * @vpd: vendor/product id/sn struct
1368 *
1369 * Return value:
1370 * none
1371 **/
1372static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1373 struct ipr_vpd *vpd)
1374{
1375 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1376 int i = 0;
1377
1378 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1379 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1380
1381 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1382 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1383
1384 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1385 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1386
1387 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1388}
1389
1da177e4
LT		 1390/**
1391 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1392 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1393 *
1394 * Return value:
1395 * none
1396 **/
cfc32139 1397static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1398{
1399 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1400 + IPR_SERIAL_NUM_LEN];
1401
cfc32139
BK		 1402 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1403 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1404 IPR_PROD_ID_LEN);
1405 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1406 ipr_err("Vendor/Product ID: %s\n", buffer);
1407
cfc32139 1408 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1409 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1410 ipr_err(" Serial Number: %s\n", buffer);
1411}
1412
8cf093e2
BK		 1413/**
1414 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1415 * @prefix: string to print at start of printk
1416 * @hostrcb: hostrcb pointer
1417 * @vpd: vendor/product id/sn/wwn struct
1418 *
1419 * Return value:
1420 * none
1421 **/
1422static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1423 struct ipr_ext_vpd *vpd)
1424{
1425 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1426 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1427 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1428}
1429
ee0f05b8
BK		 1430/**
1431 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1432 * @vpd: vendor/product id/sn/wwn struct
1433 *
1434 * Return value:
1435 * none
1436 **/
1437static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1438{
1439 ipr_log_vpd(&vpd->vpd);
1440 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1441 be32_to_cpu(vpd->wwid[1]));
1442}
1443
1444/**
1445 * ipr_log_enhanced_cache_error - Log a cache error.
1446 * @ioa_cfg: ioa config struct
1447 * @hostrcb: hostrcb struct
1448 *
1449 * Return value:
1450 * none
1451 **/
1452static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1453 struct ipr_hostrcb *hostrcb)
1454{
4565e370
WB		 1455 struct ipr_hostrcb_type_12_error *error;
1456
1457 if (ioa_cfg->sis64)
1458 error = &hostrcb->hcam.u.error64.u.type_12_error;
1459 else
1460 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1461
1462 ipr_err("-----Current Configuration-----\n");
1463 ipr_err("Cache Directory Card Information:\n");
1464 ipr_log_ext_vpd(&error->ioa_vpd);
1465 ipr_err("Adapter Card Information:\n");
1466 ipr_log_ext_vpd(&error->cfc_vpd);
1467
1468 ipr_err("-----Expected Configuration-----\n");
1469 ipr_err("Cache Directory Card Information:\n");
1470 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1471 ipr_err("Adapter Card Information:\n");
1472 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1473
1474 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1475 be32_to_cpu(error->ioa_data[0]),
1476 be32_to_cpu(error->ioa_data[1]),
1477 be32_to_cpu(error->ioa_data[2]));
1478}
1479
1da177e4
LT		 1480/**
1481 * ipr_log_cache_error - Log a cache error.
1482 * @ioa_cfg: ioa config struct
1483 * @hostrcb: hostrcb struct
1484 *
1485 * Return value:
1486 * none
1487 **/
1488static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1489 struct ipr_hostrcb *hostrcb)
1490{
1491 struct ipr_hostrcb_type_02_error *error =
1492 &hostrcb->hcam.u.error.u.type_02_error;
1493
1494 ipr_err("-----Current Configuration-----\n");
1495 ipr_err("Cache Directory Card Information:\n");
cfc32139 1496 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1497 ipr_err("Adapter Card Information:\n");
cfc32139 1498 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1499
1500 ipr_err("-----Expected Configuration-----\n");
1501 ipr_err("Cache Directory Card Information:\n");
cfc32139 1502 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1503 ipr_err("Adapter Card Information:\n");
cfc32139 1504 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1505
1506 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1507 be32_to_cpu(error->ioa_data[0]),
1508 be32_to_cpu(error->ioa_data[1]),
1509 be32_to_cpu(error->ioa_data[2]));
1510}
1511
ee0f05b8
BK		 1512/**
1513 * ipr_log_enhanced_config_error - Log a configuration error.
1514 * @ioa_cfg: ioa config struct
1515 * @hostrcb: hostrcb struct
1516 *
1517 * Return value:
1518 * none
1519 **/
1520static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1521 struct ipr_hostrcb *hostrcb)
1522{
1523 int errors_logged, i;
1524 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1525 struct ipr_hostrcb_type_13_error *error;
1526
1527 error = &hostrcb->hcam.u.error.u.type_13_error;
1528 errors_logged = be32_to_cpu(error->errors_logged);
1529
1530 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1531 be32_to_cpu(error->errors_detected), errors_logged);
1532
1533 dev_entry = error->dev;
1534
1535 for (i = 0; i < errors_logged; i++, dev_entry++) {
1536 ipr_err_separator;
1537
1538 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1539 ipr_log_ext_vpd(&dev_entry->vpd);
1540
1541 ipr_err("-----New Device Information-----\n");
1542 ipr_log_ext_vpd(&dev_entry->new_vpd);
1543
1544 ipr_err("Cache Directory Card Information:\n");
1545 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1546
1547 ipr_err("Adapter Card Information:\n");
1548 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1549 }
1550}
1551
4565e370
WB		 1552/**
1553 * ipr_log_sis64_config_error - Log a device error.
1554 * @ioa_cfg: ioa config struct
1555 * @hostrcb: hostrcb struct
1556 *
1557 * Return value:
1558 * none
1559 **/
1560static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1561 struct ipr_hostrcb *hostrcb)
1562{
1563 int errors_logged, i;
1564 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1565 struct ipr_hostrcb_type_23_error *error;
1566 char buffer[IPR_MAX_RES_PATH_LENGTH];
1567
1568 error = &hostrcb->hcam.u.error64.u.type_23_error;
1569 errors_logged = be32_to_cpu(error->errors_logged);
1570
1571 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1572 be32_to_cpu(error->errors_detected), errors_logged);
1573
1574 dev_entry = error->dev;
1575
1576 for (i = 0; i < errors_logged; i++, dev_entry++) {
1577 ipr_err_separator;
1578
1579 ipr_err("Device %d : %s", i + 1,
5adcbeb3
WB		 1580 ipr_format_res_path(dev_entry->res_path, buffer,
1581 sizeof(buffer)));
4565e370
WB		 1582 ipr_log_ext_vpd(&dev_entry->vpd);
1583
1584 ipr_err("-----New Device Information-----\n");
1585 ipr_log_ext_vpd(&dev_entry->new_vpd);
1586
1587 ipr_err("Cache Directory Card Information:\n");
1588 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1589
1590 ipr_err("Adapter Card Information:\n");
1591 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1592 }
1593}
1594
1da177e4
LT		 1595/**
1596 * ipr_log_config_error - Log a configuration error.
1597 * @ioa_cfg: ioa config struct
1598 * @hostrcb: hostrcb struct
1599 *
1600 * Return value:
1601 * none
1602 **/
1603static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1604 struct ipr_hostrcb *hostrcb)
1605{
1606 int errors_logged, i;
1607 struct ipr_hostrcb_device_data_entry *dev_entry;
1608 struct ipr_hostrcb_type_03_error *error;
1609
1610 error = &hostrcb->hcam.u.error.u.type_03_error;
1611 errors_logged = be32_to_cpu(error->errors_logged);
1612
1613 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1614 be32_to_cpu(error->errors_detected), errors_logged);
1615
cfc32139 1616 dev_entry = error->dev;
1da177e4
LT		 1617
1618 for (i = 0; i < errors_logged; i++, dev_entry++) {
1619 ipr_err_separator;
1620
fa15b1f6 1621 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1622 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1623
1624 ipr_err("-----New Device Information-----\n");
cfc32139 1625 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1626
1627 ipr_err("Cache Directory Card Information:\n");
cfc32139 1628 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1629
1630 ipr_err("Adapter Card Information:\n");
cfc32139 1631 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1632
1633 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1634 be32_to_cpu(dev_entry->ioa_data[0]),
1635 be32_to_cpu(dev_entry->ioa_data[1]),
1636 be32_to_cpu(dev_entry->ioa_data[2]),
1637 be32_to_cpu(dev_entry->ioa_data[3]),
1638 be32_to_cpu(dev_entry->ioa_data[4]));
1639 }
1640}
1641
ee0f05b8
BK		 1642/**
1643 * ipr_log_enhanced_array_error - Log an array configuration error.
1644 * @ioa_cfg: ioa config struct
1645 * @hostrcb: hostrcb struct
1646 *
1647 * Return value:
1648 * none
1649 **/
1650static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1651 struct ipr_hostrcb *hostrcb)
1652{
1653 int i, num_entries;
1654 struct ipr_hostrcb_type_14_error *error;
1655 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1656 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1657
1658 error = &hostrcb->hcam.u.error.u.type_14_error;
1659
1660 ipr_err_separator;
1661
1662 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1663 error->protection_level,
1664 ioa_cfg->host->host_no,
1665 error->last_func_vset_res_addr.bus,
1666 error->last_func_vset_res_addr.target,
1667 error->last_func_vset_res_addr.lun);
1668
1669 ipr_err_separator;
1670
1671 array_entry = error->array_member;
1672 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1673 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1674
1675 for (i = 0; i < num_entries; i++, array_entry++) {
1676 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1677 continue;
1678
1679 if (be32_to_cpu(error->exposed_mode_adn) == i)
1680 ipr_err("Exposed Array Member %d:\n", i);
1681 else
1682 ipr_err("Array Member %d:\n", i);
1683
1684 ipr_log_ext_vpd(&array_entry->vpd);
1685 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1686 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1687 "Expected Location");
1688
1689 ipr_err_separator;
1690 }
1691}
1692
1da177e4
LT		 1693/**
1694 * ipr_log_array_error - Log an array configuration error.
1695 * @ioa_cfg: ioa config struct
1696 * @hostrcb: hostrcb struct
1697 *
1698 * Return value:
1699 * none
1700 **/
1701static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1702 struct ipr_hostrcb *hostrcb)
1703{
1704 int i;
1705 struct ipr_hostrcb_type_04_error *error;
1706 struct ipr_hostrcb_array_data_entry *array_entry;
1707 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1708
1709 error = &hostrcb->hcam.u.error.u.type_04_error;
1710
1711 ipr_err_separator;
1712
1713 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1714 error->protection_level,
1715 ioa_cfg->host->host_no,
1716 error->last_func_vset_res_addr.bus,
1717 error->last_func_vset_res_addr.target,
1718 error->last_func_vset_res_addr.lun);
1719
1720 ipr_err_separator;
1721
1722 array_entry = error->array_member;
1723
1724 for (i = 0; i < 18; i++) {
cfc32139 1725 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1726 continue;
1727
fa15b1f6 1728 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1729 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1730 else
1da177e4 1731 ipr_err("Array Member %d:\n", i);
1da177e4 1732
cfc32139 1733 ipr_log_vpd(&array_entry->vpd);
1da177e4 1734
fa15b1f6
BK		 1735 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1736 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1737 "Expected Location");
1da177e4
LT		 1738
1739 ipr_err_separator;
1740
1741 if (i == 9)
1742 array_entry = error->array_member2;
1743 else
1744 array_entry++;
1745 }
1746}
1747
1748/**
b0df54bb 1749 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1750 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1751 * @data: IOA error data
1752 * @len: data length
1da177e4
LT		 1753 *
1754 * Return value:
1755 * none
1756 **/
ac719aba 1757static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1758{
1759 int i;
1da177e4 1760
b0df54bb 1761 if (len == 0)
1da177e4
LT		 1762 return;
1763
ac719aba
BK		 1764 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1765 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1766
b0df54bb 1767 for (i = 0; i < len / 4; i += 4) {
1da177e4 1768 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1769 be32_to_cpu(data[i]),
1770 be32_to_cpu(data[i+1]),
1771 be32_to_cpu(data[i+2]),
1772 be32_to_cpu(data[i+3]));
1da177e4
LT		 1773 }
1774}
1775
ee0f05b8
BK		 1776/**
1777 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1778 * @ioa_cfg: ioa config struct
1779 * @hostrcb: hostrcb struct
1780 *
1781 * Return value:
1782 * none
1783 **/
1784static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1785 struct ipr_hostrcb *hostrcb)
1786{
1787 struct ipr_hostrcb_type_17_error *error;
1788
4565e370
WB		 1789 if (ioa_cfg->sis64)
1790 error = &hostrcb->hcam.u.error64.u.type_17_error;
1791 else
1792 error = &hostrcb->hcam.u.error.u.type_17_error;
1793
ee0f05b8 1794 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1795 strim(error->failure_reason);
ee0f05b8 1796
8cf093e2
BK		 1797 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1798 be32_to_cpu(hostrcb->hcam.u.error.prc));
1799 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1800 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1801 be32_to_cpu(hostrcb->hcam.length) -
1802 (offsetof(struct ipr_hostrcb_error, u) +
1803 offsetof(struct ipr_hostrcb_type_17_error, data)));
1804}
1805
b0df54bb
BK		 1806/**
1807 * ipr_log_dual_ioa_error - Log a dual adapter error.
1808 * @ioa_cfg: ioa config struct
1809 * @hostrcb: hostrcb struct
1810 *
1811 * Return value:
1812 * none
1813 **/
1814static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1815 struct ipr_hostrcb *hostrcb)
1816{
1817 struct ipr_hostrcb_type_07_error *error;
1818
1819 error = &hostrcb->hcam.u.error.u.type_07_error;
1820 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1821 strim(error->failure_reason);
b0df54bb 1822
8cf093e2
BK		 1823 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1824 be32_to_cpu(hostrcb->hcam.u.error.prc));
1825 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1826 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1827 be32_to_cpu(hostrcb->hcam.length) -
1828 (offsetof(struct ipr_hostrcb_error, u) +
1829 offsetof(struct ipr_hostrcb_type_07_error, data)));
1830}
1831
49dc6a18
BK		 1832static const struct {
1833 u8 active;
1834 char *desc;
1835} path_active_desc[] = {
1836 { IPR_PATH_NO_INFO, "Path" },
1837 { IPR_PATH_ACTIVE, "Active path" },
1838 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1839};
1840
1841static const struct {
1842 u8 state;
1843 char *desc;
1844} path_state_desc[] = {
1845 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1846 { IPR_PATH_HEALTHY, "is healthy" },
1847 { IPR_PATH_DEGRADED, "is degraded" },
1848 { IPR_PATH_FAILED, "is failed" }
1849};
1850
1851/**
1852 * ipr_log_fabric_path - Log a fabric path error
1853 * @hostrcb: hostrcb struct
1854 * @fabric: fabric descriptor
1855 *
1856 * Return value:
1857 * none
1858 **/
1859static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1860 struct ipr_hostrcb_fabric_desc *fabric)
1861{
1862 int i, j;
1863 u8 path_state = fabric->path_state;
1864 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1865 u8 state = path_state & IPR_PATH_STATE_MASK;
1866
1867 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1868 if (path_active_desc[i].active != active)
1869 continue;
1870
1871 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1872 if (path_state_desc[j].state != state)
1873 continue;
1874
1875 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1876 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1877 path_active_desc[i].desc, path_state_desc[j].desc,
1878 fabric->ioa_port);
1879 } else if (fabric->cascaded_expander == 0xff) {
1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1881 path_active_desc[i].desc, path_state_desc[j].desc,
1882 fabric->ioa_port, fabric->phy);
1883 } else if (fabric->phy == 0xff) {
1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1885 path_active_desc[i].desc, path_state_desc[j].desc,
1886 fabric->ioa_port, fabric->cascaded_expander);
1887 } else {
1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1889 path_active_desc[i].desc, path_state_desc[j].desc,
1890 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1891 }
1892 return;
1893 }
1894 }
1895
1896 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1897 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1898}
1899
4565e370
WB		 1900/**
1901 * ipr_log64_fabric_path - Log a fabric path error
1902 * @hostrcb: hostrcb struct
1903 * @fabric: fabric descriptor
1904 *
1905 * Return value:
1906 * none
1907 **/
1908static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1909 struct ipr_hostrcb64_fabric_desc *fabric)
1910{
1911 int i, j;
1912 u8 path_state = fabric->path_state;
1913 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1914 u8 state = path_state & IPR_PATH_STATE_MASK;
1915 char buffer[IPR_MAX_RES_PATH_LENGTH];
1916
1917 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1918 if (path_active_desc[i].active != active)
1919 continue;
1920
1921 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1922 if (path_state_desc[j].state != state)
1923 continue;
1924
1925 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1926 path_active_desc[i].desc, path_state_desc[j].desc,
5adcbeb3
WB		 1927 ipr_format_res_path(fabric->res_path, buffer,
1928 sizeof(buffer)));
4565e370
WB		 1929 return;
1930 }
1931 }
1932
1933 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
5adcbeb3 1934 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
4565e370
WB		 1935}
1936
49dc6a18
BK		 1937static const struct {
1938 u8 type;
1939 char *desc;
1940} path_type_desc[] = {
1941 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1942 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1943 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1944 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1945};
1946
1947static const struct {
1948 u8 status;
1949 char *desc;
1950} path_status_desc[] = {
1951 { IPR_PATH_CFG_NO_PROB, "Functional" },
1952 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1953 { IPR_PATH_CFG_FAILED, "Failed" },
1954 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1955 { IPR_PATH_NOT_DETECTED, "Missing" },
1956 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1957};
1958
1959static const char *link_rate[] = {
1960 "unknown",
1961 "disabled",
1962 "phy reset problem",
1963 "spinup hold",
1964 "port selector",
1965 "unknown",
1966 "unknown",
1967 "unknown",
1968 "1.5Gbps",
1969 "3.0Gbps",
1970 "unknown",
1971 "unknown",
1972 "unknown",
1973 "unknown",
1974 "unknown",
1975 "unknown"
1976};
1977
1978/**
1979 * ipr_log_path_elem - Log a fabric path element.
1980 * @hostrcb: hostrcb struct
1981 * @cfg: fabric path element struct
1982 *
1983 * Return value:
1984 * none
1985 **/
1986static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1987 struct ipr_hostrcb_config_element *cfg)
1988{
1989 int i, j;
1990 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1991 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1992
1993 if (type == IPR_PATH_CFG_NOT_EXIST)
1994 return;
1995
1996 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1997 if (path_type_desc[i].type != type)
1998 continue;
1999
2000 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2001 if (path_status_desc[j].status != status)
2002 continue;
2003
2004 if (type == IPR_PATH_CFG_IOA_PORT) {
2005 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2006 path_status_desc[j].desc, path_type_desc[i].desc,
2007 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2009 } else {
2010 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2012 path_status_desc[j].desc, path_type_desc[i].desc,
2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2015 } else if (cfg->cascaded_expander == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2017 "WWN=%08X%08X\n", path_status_desc[j].desc,
2018 path_type_desc[i].desc, cfg->phy,
2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2021 } else if (cfg->phy == 0xff) {
2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2023 "WWN=%08X%08X\n", path_status_desc[j].desc,
2024 path_type_desc[i].desc, cfg->cascaded_expander,
2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2027 } else {
2028 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2029 "WWN=%08X%08X\n", path_status_desc[j].desc,
2030 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2033 }
2034 }
2035 return;
2036 }
2037 }
2038
2039 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2040 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2041 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2042 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2043}
2044
4565e370
WB		 2045/**
2046 * ipr_log64_path_elem - Log a fabric path element.
2047 * @hostrcb: hostrcb struct
2048 * @cfg: fabric path element struct
2049 *
2050 * Return value:
2051 * none
2052 **/
2053static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2054 struct ipr_hostrcb64_config_element *cfg)
2055{
2056 int i, j;
2057 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2058 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2059 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2060 char buffer[IPR_MAX_RES_PATH_LENGTH];
2061
2062 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2063 return;
2064
2065 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2066 if (path_type_desc[i].type != type)
2067 continue;
2068
2069 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2070 if (path_status_desc[j].status != status)
2071 continue;
2072
2073 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2074 path_status_desc[j].desc, path_type_desc[i].desc,
5adcbeb3
WB		 2075 ipr_format_res_path(cfg->res_path, buffer,
2076 sizeof(buffer)),
4565e370
WB		 2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2079 return;
2080 }
2081 }
2082 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2083 "WWN=%08X%08X\n", cfg->type_status,
5adcbeb3 2084 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
4565e370
WB		 2085 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2086 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2087}
2088
49dc6a18
BK		 2089/**
2090 * ipr_log_fabric_error - Log a fabric error.
2091 * @ioa_cfg: ioa config struct
2092 * @hostrcb: hostrcb struct
2093 *
2094 * Return value:
2095 * none
2096 **/
2097static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2098 struct ipr_hostrcb *hostrcb)
2099{
2100 struct ipr_hostrcb_type_20_error *error;
2101 struct ipr_hostrcb_fabric_desc *fabric;
2102 struct ipr_hostrcb_config_element *cfg;
2103 int i, add_len;
2104
2105 error = &hostrcb->hcam.u.error.u.type_20_error;
2106 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2107 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2108
2109 add_len = be32_to_cpu(hostrcb->hcam.length) -
2110 (offsetof(struct ipr_hostrcb_error, u) +
2111 offsetof(struct ipr_hostrcb_type_20_error, desc));
2112
2113 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2114 ipr_log_fabric_path(hostrcb, fabric);
2115 for_each_fabric_cfg(fabric, cfg)
2116 ipr_log_path_elem(hostrcb, cfg);
2117
2118 add_len -= be16_to_cpu(fabric->length);
2119 fabric = (struct ipr_hostrcb_fabric_desc *)
2120 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2121 }
2122
ac719aba 2123 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2124}
2125
4565e370
WB		 2126/**
2127 * ipr_log_sis64_array_error - Log a sis64 array error.
2128 * @ioa_cfg: ioa config struct
2129 * @hostrcb: hostrcb struct
2130 *
2131 * Return value:
2132 * none
2133 **/
2134static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2135 struct ipr_hostrcb *hostrcb)
2136{
2137 int i, num_entries;
2138 struct ipr_hostrcb_type_24_error *error;
2139 struct ipr_hostrcb64_array_data_entry *array_entry;
2140 char buffer[IPR_MAX_RES_PATH_LENGTH];
2141 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2142
2143 error = &hostrcb->hcam.u.error64.u.type_24_error;
2144
2145 ipr_err_separator;
2146
2147 ipr_err("RAID %s Array Configuration: %s\n",
2148 error->protection_level,
5adcbeb3 2149 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
4565e370
WB		 2150
2151 ipr_err_separator;
2152
2153 array_entry = error->array_member;
7262026f
WB		 2154 num_entries = min_t(u32, error->num_entries,
2155 ARRAY_SIZE(error->array_member));
4565e370
WB		 2156
2157 for (i = 0; i < num_entries; i++, array_entry++) {
2158
2159 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2160 continue;
2161
2162 if (error->exposed_mode_adn == i)
2163 ipr_err("Exposed Array Member %d:\n", i);
2164 else
2165 ipr_err("Array Member %d:\n", i);
2166
2167 ipr_err("Array Member %d:\n", i);
2168 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2169 ipr_err("Current Location: %s\n",
5adcbeb3
WB		 2170 ipr_format_res_path(array_entry->res_path, buffer,
2171 sizeof(buffer)));
7262026f 2172 ipr_err("Expected Location: %s\n",
5adcbeb3
WB		 2173 ipr_format_res_path(array_entry->expected_res_path,
2174 buffer, sizeof(buffer)));
4565e370
WB		 2175
2176 ipr_err_separator;
2177 }
2178}
2179
2180/**
2181 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2182 * @ioa_cfg: ioa config struct
2183 * @hostrcb: hostrcb struct
2184 *
2185 * Return value:
2186 * none
2187 **/
2188static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2189 struct ipr_hostrcb *hostrcb)
2190{
2191 struct ipr_hostrcb_type_30_error *error;
2192 struct ipr_hostrcb64_fabric_desc *fabric;
2193 struct ipr_hostrcb64_config_element *cfg;
2194 int i, add_len;
2195
2196 error = &hostrcb->hcam.u.error64.u.type_30_error;
2197
2198 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2199 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2200
2201 add_len = be32_to_cpu(hostrcb->hcam.length) -
2202 (offsetof(struct ipr_hostrcb64_error, u) +
2203 offsetof(struct ipr_hostrcb_type_30_error, desc));
2204
2205 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2206 ipr_log64_fabric_path(hostrcb, fabric);
2207 for_each_fabric_cfg(fabric, cfg)
2208 ipr_log64_path_elem(hostrcb, cfg);
2209
2210 add_len -= be16_to_cpu(fabric->length);
2211 fabric = (struct ipr_hostrcb64_fabric_desc *)
2212 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2213 }
2214
2215 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2216}
2217
b0df54bb
BK		 2218/**
2219 * ipr_log_generic_error - Log an adapter error.
2220 * @ioa_cfg: ioa config struct
2221 * @hostrcb: hostrcb struct
2222 *
2223 * Return value:
2224 * none
2225 **/
2226static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2227 struct ipr_hostrcb *hostrcb)
2228{
ac719aba 2229 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2230 be32_to_cpu(hostrcb->hcam.length));
2231}
2232
1da177e4
LT		 2233/**
2234 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2235 * @ioasc: IOASC
2236 *
2237 * This function will return the index of into the ipr_error_table
2238 * for the specified IOASC. If the IOASC is not in the table,
2239 * 0 will be returned, which points to the entry used for unknown errors.
2240 *
2241 * Return value:
2242 * index into the ipr_error_table
2243 **/
2244static u32 ipr_get_error(u32 ioasc)
2245{
2246 int i;
2247
2248 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2249 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2250 return i;
2251
2252 return 0;
2253}
2254
2255/**
2256 * ipr_handle_log_data - Log an adapter error.
2257 * @ioa_cfg: ioa config struct
2258 * @hostrcb: hostrcb struct
2259 *
2260 * This function logs an adapter error to the system.
2261 *
2262 * Return value:
2263 * none
2264 **/
2265static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2266 struct ipr_hostrcb *hostrcb)
2267{
2268 u32 ioasc;
2269 int error_index;
2270
2271 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2272 return;
2273
2274 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2275 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2276
4565e370
WB		 2277 if (ioa_cfg->sis64)
2278 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2279 else
2280 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2281
4565e370
WB		 2282 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2283 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2284 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2285 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2286 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2287 }
2288
2289 error_index = ipr_get_error(ioasc);
2290
2291 if (!ipr_error_table[error_index].log_hcam)
2292 return;
2293
49dc6a18 2294 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2295
2296 /* Set indication we have logged an error */
2297 ioa_cfg->errors_logged++;
2298
933916f3 2299 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2300 return;
cf852037
BK		 2301 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2302 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2303
2304 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2305 case IPR_HOST_RCB_OVERLAY_ID_2:
2306 ipr_log_cache_error(ioa_cfg, hostrcb);
2307 break;
2308 case IPR_HOST_RCB_OVERLAY_ID_3:
2309 ipr_log_config_error(ioa_cfg, hostrcb);
2310 break;
2311 case IPR_HOST_RCB_OVERLAY_ID_4:
2312 case IPR_HOST_RCB_OVERLAY_ID_6:
2313 ipr_log_array_error(ioa_cfg, hostrcb);
2314 break;
b0df54bb
BK		 2315 case IPR_HOST_RCB_OVERLAY_ID_7:
2316 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2317 break;
ee0f05b8
BK		 2318 case IPR_HOST_RCB_OVERLAY_ID_12:
2319 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2320 break;
2321 case IPR_HOST_RCB_OVERLAY_ID_13:
2322 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2323 break;
2324 case IPR_HOST_RCB_OVERLAY_ID_14:
2325 case IPR_HOST_RCB_OVERLAY_ID_16:
2326 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2327 break;
2328 case IPR_HOST_RCB_OVERLAY_ID_17:
2329 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2330 break;
49dc6a18
BK		 2331 case IPR_HOST_RCB_OVERLAY_ID_20:
2332 ipr_log_fabric_error(ioa_cfg, hostrcb);
2333 break;
4565e370
WB		 2334 case IPR_HOST_RCB_OVERLAY_ID_23:
2335 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2336 break;
2337 case IPR_HOST_RCB_OVERLAY_ID_24:
2338 case IPR_HOST_RCB_OVERLAY_ID_26:
2339 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2340 break;
2341 case IPR_HOST_RCB_OVERLAY_ID_30:
2342 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2343 break;
cf852037 2344 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2345 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2346 default:
a9cfca96 2347 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2348 break;
2349 }
2350}
2351
2352/**
2353 * ipr_process_error - Op done function for an adapter error log.
2354 * @ipr_cmd: ipr command struct
2355 *
2356 * This function is the op done function for an error log host
2357 * controlled async from the adapter. It will log the error and
2358 * send the HCAM back to the adapter.
2359 *
2360 * Return value:
2361 * none
2362 **/
2363static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2364{
2365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2366 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2367 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2368 u32 fd_ioasc;
2369
2370 if (ioa_cfg->sis64)
2371 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2372 else
2373 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2374
2375 list_del(&hostrcb->queue);
2376 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2377
2378 if (!ioasc) {
2379 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2380 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2382 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2383 dev_err(&ioa_cfg->pdev->dev,
2384 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2385 }
2386
2387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2388}
2389
2390/**
2391 * ipr_timeout - An internally generated op has timed out.
2392 * @ipr_cmd: ipr command struct
2393 *
2394 * This function blocks host requests and initiates an
2395 * adapter reset.
2396 *
2397 * Return value:
2398 * none
2399 **/
2400static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2401{
2402 unsigned long lock_flags = 0;
2403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2404
2405 ENTER;
2406 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2407
2408 ioa_cfg->errors_logged++;
2409 dev_err(&ioa_cfg->pdev->dev,
2410 "Adapter being reset due to command timeout.\n");
2411
2412 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2413 ioa_cfg->sdt_state = GET_DUMP;
2414
2415 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2417
2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2419 LEAVE;
2420}
2421
2422/**
2423 * ipr_oper_timeout - Adapter timed out transitioning to operational
2424 * @ipr_cmd: ipr command struct
2425 *
2426 * This function blocks host requests and initiates an
2427 * adapter reset.
2428 *
2429 * Return value:
2430 * none
2431 **/
2432static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2433{
2434 unsigned long lock_flags = 0;
2435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2436
2437 ENTER;
2438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2439
2440 ioa_cfg->errors_logged++;
2441 dev_err(&ioa_cfg->pdev->dev,
2442 "Adapter timed out transitioning to operational.\n");
2443
2444 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2445 ioa_cfg->sdt_state = GET_DUMP;
2446
2447 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2448 if (ipr_fastfail)
2449 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2451 }
2452
2453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2454 LEAVE;
2455}
2456
2457/**
2458 * ipr_reset_reload - Reset/Reload the IOA
2459 * @ioa_cfg: ioa config struct
2460 * @shutdown_type: shutdown type
2461 *
2462 * This function resets the adapter and re-initializes it.
2463 * This function assumes that all new host commands have been stopped.
2464 * Return value:
2465 * SUCCESS / FAILED
2466 **/
2467static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2468 enum ipr_shutdown_type shutdown_type)
2469{
2470 if (!ioa_cfg->in_reset_reload)
2471 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2472
2473 spin_unlock_irq(ioa_cfg->host->host_lock);
2474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2475 spin_lock_irq(ioa_cfg->host->host_lock);
2476
2477 /* If we got hit with a host reset while we were already resetting
2478 the adapter for some reason, and the reset failed. */
2479 if (ioa_cfg->ioa_is_dead) {
2480 ipr_trace;
2481 return FAILED;
2482 }
2483
2484 return SUCCESS;
2485}
2486
2487/**
2488 * ipr_find_ses_entry - Find matching SES in SES table
2489 * @res: resource entry struct of SES
2490 *
2491 * Return value:
2492 * pointer to SES table entry / NULL on failure
2493 **/
2494static const struct ipr_ses_table_entry *
2495ipr_find_ses_entry(struct ipr_resource_entry *res)
2496{
2497 int i, j, matches;
3e7ebdfa 2498 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2499 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2500
2501 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2502 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2503 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2504 vpids = &res->std_inq_data.vpids;
2505 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2506 matches++;
2507 else
2508 break;
2509 } else
2510 matches++;
2511 }
2512
2513 if (matches == IPR_PROD_ID_LEN)
2514 return ste;
2515 }
2516
2517 return NULL;
2518}
2519
2520/**
2521 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2522 * @ioa_cfg: ioa config struct
2523 * @bus: SCSI bus
2524 * @bus_width: bus width
2525 *
2526 * Return value:
2527 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2528 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2529 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2530 * max 160MHz = max 320MB/sec).
2531 **/
2532static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2533{
2534 struct ipr_resource_entry *res;
2535 const struct ipr_ses_table_entry *ste;
2536 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2537
2538 /* Loop through each config table entry in the config table buffer */
2539 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2540 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2541 continue;
2542
3e7ebdfa 2543 if (bus != res->bus)
1da177e4
LT		 2544 continue;
2545
2546 if (!(ste = ipr_find_ses_entry(res)))
2547 continue;
2548
2549 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2550 }
2551
2552 return max_xfer_rate;
2553}
2554
2555/**
2556 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2557 * @ioa_cfg: ioa config struct
2558 * @max_delay: max delay in micro-seconds to wait
2559 *
2560 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2561 *
2562 * Return value:
2563 * 0 on success / other on failure
2564 **/
2565static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2566{
2567 volatile u32 pcii_reg;
2568 int delay = 1;
2569
2570 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2571 while (delay < max_delay) {
2572 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2573
2574 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2575 return 0;
2576
2577 /* udelay cannot be used if delay is more than a few milliseconds */
2578 if ((delay / 1000) > MAX_UDELAY_MS)
2579 mdelay(delay / 1000);
2580 else
2581 udelay(delay);
2582
2583 delay += delay;
2584 }
2585 return -EIO;
2586}
2587
dcbad00e
WB		 2588/**
2589 * ipr_get_sis64_dump_data_section - Dump IOA memory
2590 * @ioa_cfg: ioa config struct
2591 * @start_addr: adapter address to dump
2592 * @dest: destination kernel buffer
2593 * @length_in_words: length to dump in 4 byte words
2594 *
2595 * Return value:
2596 * 0 on success
2597 **/
2598static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2599 u32 start_addr,
2600 __be32 *dest, u32 length_in_words)
2601{
2602 int i;
2603
2604 for (i = 0; i < length_in_words; i++) {
2605 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2606 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2607 dest++;
2608 }
2609
2610 return 0;
2611}
2612
1da177e4
LT		 2613/**
2614 * ipr_get_ldump_data_section - Dump IOA memory
2615 * @ioa_cfg: ioa config struct
2616 * @start_addr: adapter address to dump
2617 * @dest: destination kernel buffer
2618 * @length_in_words: length to dump in 4 byte words
2619 *
2620 * Return value:
2621 * 0 on success / -EIO on failure
2622 **/
2623static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2624 u32 start_addr,
2625 __be32 *dest, u32 length_in_words)
2626{
2627 volatile u32 temp_pcii_reg;
2628 int i, delay = 0;
2629
dcbad00e
WB		 2630 if (ioa_cfg->sis64)
2631 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2632 dest, length_in_words);
2633
1da177e4
LT		 2634 /* Write IOA interrupt reg starting LDUMP state */
2635 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2636 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2637
2638 /* Wait for IO debug acknowledge */
2639 if (ipr_wait_iodbg_ack(ioa_cfg,
2640 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2641 dev_err(&ioa_cfg->pdev->dev,
2642 "IOA dump long data transfer timeout\n");
2643 return -EIO;
2644 }
2645
2646 /* Signal LDUMP interlocked - clear IO debug ack */
2647 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2648 ioa_cfg->regs.clr_interrupt_reg);
2649
2650 /* Write Mailbox with starting address */
2651 writel(start_addr, ioa_cfg->ioa_mailbox);
2652
2653 /* Signal address valid - clear IOA Reset alert */
2654 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2655 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2656
2657 for (i = 0; i < length_in_words; i++) {
2658 /* Wait for IO debug acknowledge */
2659 if (ipr_wait_iodbg_ack(ioa_cfg,
2660 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2661 dev_err(&ioa_cfg->pdev->dev,
2662 "IOA dump short data transfer timeout\n");
2663 return -EIO;
2664 }
2665
2666 /* Read data from mailbox and increment destination pointer */
2667 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2668 dest++;
2669
2670 /* For all but the last word of data, signal data received */
2671 if (i < (length_in_words - 1)) {
2672 /* Signal dump data received - Clear IO debug Ack */
2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2674 ioa_cfg->regs.clr_interrupt_reg);
2675 }
2676 }
2677
2678 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2679 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2680 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2681
2682 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2683 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2684
2685 /* Signal dump data received - Clear IO debug Ack */
2686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2687 ioa_cfg->regs.clr_interrupt_reg);
2688
2689 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2690 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2691 temp_pcii_reg =
214777ba 2692 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2693
2694 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2695 return 0;
2696
2697 udelay(10);
2698 delay += 10;
2699 }
2700
2701 return 0;
2702}
2703
2704#ifdef CONFIG_SCSI_IPR_DUMP
2705/**
2706 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2707 * @ioa_cfg: ioa config struct
2708 * @pci_address: adapter address
2709 * @length: length of data to copy
2710 *
2711 * Copy data from PCI adapter to kernel buffer.
2712 * Note: length MUST be a 4 byte multiple
2713 * Return value:
2714 * 0 on success / other on failure
2715 **/
2716static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2717 unsigned long pci_address, u32 length)
2718{
2719 int bytes_copied = 0;
2720 int cur_len, rc, rem_len, rem_page_len;
2721 __be32 *page;
2722 unsigned long lock_flags = 0;
2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2724
2725 while (bytes_copied < length &&
2726 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2727 if (ioa_dump->page_offset >= PAGE_SIZE ||
2728 ioa_dump->page_offset == 0) {
2729 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2730
2731 if (!page) {
2732 ipr_trace;
2733 return bytes_copied;
2734 }
2735
2736 ioa_dump->page_offset = 0;
2737 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2738 ioa_dump->next_page_index++;
2739 } else
2740 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2741
2742 rem_len = length - bytes_copied;
2743 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2744 cur_len = min(rem_len, rem_page_len);
2745
2746 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2747 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2748 rc = -EIO;
2749 } else {
2750 rc = ipr_get_ldump_data_section(ioa_cfg,
2751 pci_address + bytes_copied,
2752 &page[ioa_dump->page_offset / 4],
2753 (cur_len / sizeof(u32)));
2754 }
2755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2756
2757 if (!rc) {
2758 ioa_dump->page_offset += cur_len;
2759 bytes_copied += cur_len;
2760 } else {
2761 ipr_trace;
2762 break;
2763 }
2764 schedule();
2765 }
2766
2767 return bytes_copied;
2768}
2769
2770/**
2771 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2772 * @hdr: dump entry header struct
2773 *
2774 * Return value:
2775 * nothing
2776 **/
2777static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2778{
2779 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2780 hdr->num_elems = 1;
2781 hdr->offset = sizeof(*hdr);
2782 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2783}
2784
2785/**
2786 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2787 * @ioa_cfg: ioa config struct
2788 * @driver_dump: driver dump struct
2789 *
2790 * Return value:
2791 * nothing
2792 **/
2793static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2794 struct ipr_driver_dump *driver_dump)
2795{
2796 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2797
2798 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2799 driver_dump->ioa_type_entry.hdr.len =
2800 sizeof(struct ipr_dump_ioa_type_entry) -
2801 sizeof(struct ipr_dump_entry_header);
2802 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2803 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2804 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2805 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2806 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2807 ucode_vpd->minor_release[1];
2808 driver_dump->hdr.num_entries++;
2809}
2810
2811/**
2812 * ipr_dump_version_data - Fill in the driver version in the dump.
2813 * @ioa_cfg: ioa config struct
2814 * @driver_dump: driver dump struct
2815 *
2816 * Return value:
2817 * nothing
2818 **/
2819static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2820 struct ipr_driver_dump *driver_dump)
2821{
2822 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2823 driver_dump->version_entry.hdr.len =
2824 sizeof(struct ipr_dump_version_entry) -
2825 sizeof(struct ipr_dump_entry_header);
2826 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2827 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2828 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2829 driver_dump->hdr.num_entries++;
2830}
2831
2832/**
2833 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2834 * @ioa_cfg: ioa config struct
2835 * @driver_dump: driver dump struct
2836 *
2837 * Return value:
2838 * nothing
2839 **/
2840static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2841 struct ipr_driver_dump *driver_dump)
2842{
2843 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2844 driver_dump->trace_entry.hdr.len =
2845 sizeof(struct ipr_dump_trace_entry) -
2846 sizeof(struct ipr_dump_entry_header);
2847 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2848 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2849 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2850 driver_dump->hdr.num_entries++;
2851}
2852
2853/**
2854 * ipr_dump_location_data - Fill in the IOA location in the dump.
2855 * @ioa_cfg: ioa config struct
2856 * @driver_dump: driver dump struct
2857 *
2858 * Return value:
2859 * nothing
2860 **/
2861static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2862 struct ipr_driver_dump *driver_dump)
2863{
2864 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2865 driver_dump->location_entry.hdr.len =
2866 sizeof(struct ipr_dump_location_entry) -
2867 sizeof(struct ipr_dump_entry_header);
2868 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2869 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 2870 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 2871 driver_dump->hdr.num_entries++;
2872}
2873
2874/**
2875 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2876 * @ioa_cfg: ioa config struct
2877 * @dump: dump struct
2878 *
2879 * Return value:
2880 * nothing
2881 **/
2882static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2883{
2884 unsigned long start_addr, sdt_word;
2885 unsigned long lock_flags = 0;
2886 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2887 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2888 u32 num_entries, start_off, end_off;
2889 u32 bytes_to_copy, bytes_copied, rc;
2890 struct ipr_sdt *sdt;
dcbad00e 2891 int valid = 1;
1da177e4
LT		 2892 int i;
2893
2894 ENTER;
2895
2896 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2897
2898 if (ioa_cfg->sdt_state != GET_DUMP) {
2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2900 return;
2901 }
2902
110def85
WB		 2903 if (ioa_cfg->sis64) {
2904 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2905 ssleep(IPR_DUMP_DELAY_SECONDS);
2906 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2907 }
2908
1da177e4
LT		 2909 start_addr = readl(ioa_cfg->ioa_mailbox);
2910
dcbad00e 2911 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 2912 dev_err(&ioa_cfg->pdev->dev,
2913 "Invalid dump table format: %lx\n", start_addr);
2914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2915 return;
2916 }
2917
2918 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2919
2920 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2921
2922 /* Initialize the overall dump header */
2923 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2924 driver_dump->hdr.num_entries = 1;
2925 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2926 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2927 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2928 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2929
2930 ipr_dump_version_data(ioa_cfg, driver_dump);
2931 ipr_dump_location_data(ioa_cfg, driver_dump);
2932 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2933 ipr_dump_trace_data(ioa_cfg, driver_dump);
2934
2935 /* Update dump_header */
2936 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2937
2938 /* IOA Dump entry */
2939 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 2940 ioa_dump->hdr.len = 0;
2941 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2942 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2943
2944 /* First entries in sdt are actually a list of dump addresses and
2945 lengths to gather the real dump data. sdt represents the pointer
2946 to the ioa generated dump table. Dump data will be extracted based
2947 on entries in this table */
2948 sdt = &ioa_dump->sdt;
2949
2950 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2951 sizeof(struct ipr_sdt) / sizeof(__be32));
2952
2953 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 2954 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2955 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 2956 dev_err(&ioa_cfg->pdev->dev,
2957 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2958 rc, be32_to_cpu(sdt->hdr.state));
2959 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2960 ioa_cfg->sdt_state = DUMP_OBTAINED;
2961 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2962 return;
2963 }
2964
2965 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2966
2967 if (num_entries > IPR_NUM_SDT_ENTRIES)
2968 num_entries = IPR_NUM_SDT_ENTRIES;
2969
2970 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2971
2972 for (i = 0; i < num_entries; i++) {
2973 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2974 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2975 break;
2976 }
2977
2978 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 2979 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2980 if (ioa_cfg->sis64)
2981 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2982 else {
2983 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2984 end_off = be32_to_cpu(sdt->entry[i].end_token);
2985
2986 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2987 bytes_to_copy = end_off - start_off;
2988 else
2989 valid = 0;
2990 }
2991 if (valid) {
1da177e4
LT		 2992 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2993 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2994 continue;
2995 }
2996
2997 /* Copy data from adapter to driver buffers */
2998 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2999 bytes_to_copy);
3000
3001 ioa_dump->hdr.len += bytes_copied;
3002
3003 if (bytes_copied != bytes_to_copy) {
3004 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3005 break;
3006 }
3007 }
3008 }
3009 }
3010
3011 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3012
3013 /* Update dump_header */
3014 driver_dump->hdr.len += ioa_dump->hdr.len;
3015 wmb();
3016 ioa_cfg->sdt_state = DUMP_OBTAINED;
3017 LEAVE;
3018}
3019
3020#else
3021#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3022#endif
3023
3024/**
3025 * ipr_release_dump - Free adapter dump memory
3026 * @kref: kref struct
3027 *
3028 * Return value:
3029 * nothing
3030 **/
3031static void ipr_release_dump(struct kref *kref)
3032{
3033 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3034 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3035 unsigned long lock_flags = 0;
3036 int i;
3037
3038 ENTER;
3039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3040 ioa_cfg->dump = NULL;
3041 ioa_cfg->sdt_state = INACTIVE;
3042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3043
3044 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3045 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3046
3047 kfree(dump);
3048 LEAVE;
3049}
3050
3051/**
3052 * ipr_worker_thread - Worker thread
c4028958 3053 * @work: ioa config struct
1da177e4
LT		 3054 *
3055 * Called at task level from a work thread. This function takes care
3056 * of adding and removing device from the mid-layer as configuration
3057 * changes are detected by the adapter.
3058 *
3059 * Return value:
3060 * nothing
3061 **/
c4028958 3062static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3063{
3064 unsigned long lock_flags;
3065 struct ipr_resource_entry *res;
3066 struct scsi_device *sdev;
3067 struct ipr_dump *dump;
c4028958
DH		 3068 struct ipr_ioa_cfg *ioa_cfg =
3069 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3070 u8 bus, target, lun;
3071 int did_work;
3072
3073 ENTER;
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3075
3076 if (ioa_cfg->sdt_state == GET_DUMP) {
3077 dump = ioa_cfg->dump;
3078 if (!dump) {
3079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3080 return;
3081 }
3082 kref_get(&dump->kref);
3083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3084 ipr_get_ioa_dump(ioa_cfg, dump);
3085 kref_put(&dump->kref, ipr_release_dump);
3086
3087 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3088 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3089 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3090 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3091 return;
3092 }
3093
3094restart:
3095 do {
3096 did_work = 0;
3097 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3099 return;
3100 }
3101
3102 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3103 if (res->del_from_ml && res->sdev) {
3104 did_work = 1;
3105 sdev = res->sdev;
3106 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3107 if (!res->add_to_ml)
3108 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3109 else
3110 res->del_from_ml = 0;
1da177e4
LT		 3111 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3112 scsi_remove_device(sdev);
3113 scsi_device_put(sdev);
3114 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3115 }
3116 break;
3117 }
3118 }
3119 } while(did_work);
3120
3121 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3122 if (res->add_to_ml) {
3e7ebdfa
WB		 3123 bus = res->bus;
3124 target = res->target;
3125 lun = res->lun;
1121b794 3126 res->add_to_ml = 0;
1da177e4
LT		 3127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3128 scsi_add_device(ioa_cfg->host, bus, target, lun);
3129 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3130 goto restart;
3131 }
3132 }
3133
3134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3135 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3136 LEAVE;
3137}
3138
3139#ifdef CONFIG_SCSI_IPR_TRACE
3140/**
3141 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3142 * @filp: open sysfs file
1da177e4 3143 * @kobj: kobject struct
91a69029 3144 * @bin_attr: bin_attribute struct
1da177e4
LT		 3145 * @buf: buffer
3146 * @off: offset
3147 * @count: buffer size
3148 *
3149 * Return value:
3150 * number of bytes printed to buffer
3151 **/
2c3c8bea 3152static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3153 struct bin_attribute *bin_attr,
3154 char *buf, loff_t off, size_t count)
1da177e4 3155{
ee959b00
TJ		 3156 struct device *dev = container_of(kobj, struct device, kobj);
3157 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3158 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3159 unsigned long lock_flags = 0;
d777aaf3 3160 ssize_t ret;
1da177e4
LT		 3161
3162 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3163 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3164 IPR_TRACE_SIZE);
1da177e4 3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3166
3167 return ret;
1da177e4
LT		 3168}
3169
3170static struct bin_attribute ipr_trace_attr = {
3171 .attr = {
3172 .name = "trace",
3173 .mode = S_IRUGO,
3174 },
3175 .size = 0,
3176 .read = ipr_read_trace,
3177};
3178#endif
3179
3180/**
3181 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3182 * @dev: class device struct
3183 * @buf: buffer
1da177e4
LT		 3184 *
3185 * Return value:
3186 * number of bytes printed to buffer
3187 **/
ee959b00
TJ		 3188static ssize_t ipr_show_fw_version(struct device *dev,
3189 struct device_attribute *attr, char *buf)
1da177e4 3190{
ee959b00 3191 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3192 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3193 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3194 unsigned long lock_flags = 0;
3195 int len;
3196
3197 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3198 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3199 ucode_vpd->major_release, ucode_vpd->card_type,
3200 ucode_vpd->minor_release[0],
3201 ucode_vpd->minor_release[1]);
3202 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3203 return len;
3204}
3205
ee959b00 3206static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3207 .attr = {
3208 .name = "fw_version",
3209 .mode = S_IRUGO,
3210 },
3211 .show = ipr_show_fw_version,
3212};
3213
3214/**
3215 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3216 * @dev: class device struct
3217 * @buf: buffer
1da177e4
LT		 3218 *
3219 * Return value:
3220 * number of bytes printed to buffer
3221 **/
ee959b00
TJ		 3222static ssize_t ipr_show_log_level(struct device *dev,
3223 struct device_attribute *attr, char *buf)
1da177e4 3224{
ee959b00 3225 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3226 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3227 unsigned long lock_flags = 0;
3228 int len;
3229
3230 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3231 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3232 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3233 return len;
3234}
3235
3236/**
3237 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3238 * @dev: class device struct
3239 * @buf: buffer
1da177e4
LT		 3240 *
3241 * Return value:
3242 * number of bytes printed to buffer
3243 **/
ee959b00
TJ		 3244static ssize_t ipr_store_log_level(struct device *dev,
3245 struct device_attribute *attr,
1da177e4
LT		 3246 const char *buf, size_t count)
3247{
ee959b00 3248 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3249 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3250 unsigned long lock_flags = 0;
3251
3252 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3253 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3255 return strlen(buf);
3256}
3257
ee959b00 3258static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3259 .attr = {
3260 .name = "log_level",
3261 .mode = S_IRUGO | S_IWUSR,
3262 },
3263 .show = ipr_show_log_level,
3264 .store = ipr_store_log_level
3265};
3266
3267/**
3268 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3269 * @dev: device struct
3270 * @buf: buffer
3271 * @count: buffer size
1da177e4
LT		 3272 *
3273 * This function will reset the adapter and wait a reasonable
3274 * amount of time for any errors that the adapter might log.
3275 *
3276 * Return value:
3277 * count on success / other on failure
3278 **/
ee959b00
TJ		 3279static ssize_t ipr_store_diagnostics(struct device *dev,
3280 struct device_attribute *attr,
1da177e4
LT		 3281 const char *buf, size_t count)
3282{
ee959b00 3283 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3284 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3285 unsigned long lock_flags = 0;
3286 int rc = count;
3287
3288 if (!capable(CAP_SYS_ADMIN))
3289 return -EACCES;
3290
1da177e4 3291 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3292 while(ioa_cfg->in_reset_reload) {
3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3294 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3295 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3296 }
3297
1da177e4
LT		 3298 ioa_cfg->errors_logged = 0;
3299 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3300
3301 if (ioa_cfg->in_reset_reload) {
3302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3303 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3304
3305 /* Wait for a second for any errors to be logged */
3306 msleep(1000);
3307 } else {
3308 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3309 return -EIO;
3310 }
3311
3312 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3313 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3314 rc = -EIO;
3315 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3316
3317 return rc;
3318}
3319
ee959b00 3320static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3321 .attr = {
3322 .name = "run_diagnostics",
3323 .mode = S_IWUSR,
3324 },
3325 .store = ipr_store_diagnostics
3326};
3327
f37eb54b
BK		 3328/**
3329 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3330 * @class_dev: device struct
3331 * @buf: buffer
f37eb54b
BK		 3332 *
3333 * Return value:
3334 * number of bytes printed to buffer
3335 **/
ee959b00
TJ		 3336static ssize_t ipr_show_adapter_state(struct device *dev,
3337 struct device_attribute *attr, char *buf)
f37eb54b 3338{
ee959b00 3339 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3340 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3341 unsigned long lock_flags = 0;
3342 int len;
3343
3344 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3345 if (ioa_cfg->ioa_is_dead)
3346 len = snprintf(buf, PAGE_SIZE, "offline\n");
3347 else
3348 len = snprintf(buf, PAGE_SIZE, "online\n");
3349 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3350 return len;
3351}
3352
3353/**
3354 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3355 * @dev: device struct
3356 * @buf: buffer
3357 * @count: buffer size
f37eb54b
BK		 3358 *
3359 * This function will change the adapter's state.
3360 *
3361 * Return value:
3362 * count on success / other on failure
3363 **/
ee959b00
TJ		 3364static ssize_t ipr_store_adapter_state(struct device *dev,
3365 struct device_attribute *attr,
f37eb54b
BK		 3366 const char *buf, size_t count)
3367{
ee959b00 3368 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3369 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3370 unsigned long lock_flags;
3371 int result = count;
3372
3373 if (!capable(CAP_SYS_ADMIN))
3374 return -EACCES;
3375
3376 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3377 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3378 ioa_cfg->ioa_is_dead = 0;
3379 ioa_cfg->reset_retries = 0;
3380 ioa_cfg->in_ioa_bringdown = 0;
3381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3382 }
3383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3384 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3385
3386 return result;
3387}
3388
ee959b00 3389static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3390 .attr = {
49dd0961 3391 .name = "online_state",
f37eb54b
BK		 3392 .mode = S_IRUGO | S_IWUSR,
3393 },
3394 .show = ipr_show_adapter_state,
3395 .store = ipr_store_adapter_state
3396};
3397
1da177e4
LT		 3398/**
3399 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3400 * @dev: device struct
3401 * @buf: buffer
3402 * @count: buffer size
1da177e4
LT		 3403 *
3404 * This function will reset the adapter.
3405 *
3406 * Return value:
3407 * count on success / other on failure
3408 **/
ee959b00
TJ		 3409static ssize_t ipr_store_reset_adapter(struct device *dev,
3410 struct device_attribute *attr,
1da177e4
LT		 3411 const char *buf, size_t count)
3412{
ee959b00 3413 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3414 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3415 unsigned long lock_flags;
3416 int result = count;
3417
3418 if (!capable(CAP_SYS_ADMIN))
3419 return -EACCES;
3420
3421 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3422 if (!ioa_cfg->in_reset_reload)
3423 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3424 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3425 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3426
3427 return result;
3428}
3429
ee959b00 3430static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3431 .attr = {
3432 .name = "reset_host",
3433 .mode = S_IWUSR,
3434 },
3435 .store = ipr_store_reset_adapter
3436};
3437
3438/**
3439 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3440 * @buf_len: buffer length
3441 *
3442 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3443 * list to use for microcode download
3444 *
3445 * Return value:
3446 * pointer to sglist / NULL on failure
3447 **/
3448static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3449{
3450 int sg_size, order, bsize_elem, num_elem, i, j;
3451 struct ipr_sglist *sglist;
3452 struct scatterlist *scatterlist;
3453 struct page *page;
3454
3455 /* Get the minimum size per scatter/gather element */
3456 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3457
3458 /* Get the actual size per element */
3459 order = get_order(sg_size);
3460
3461 /* Determine the actual number of bytes per element */
3462 bsize_elem = PAGE_SIZE * (1 << order);
3463
3464 /* Determine the actual number of sg entries needed */
3465 if (buf_len % bsize_elem)
3466 num_elem = (buf_len / bsize_elem) + 1;
3467 else
3468 num_elem = buf_len / bsize_elem;
3469
3470 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3471 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3472 (sizeof(struct scatterlist) * (num_elem - 1)),
3473 GFP_KERNEL);
3474
3475 if (sglist == NULL) {
3476 ipr_trace;
3477 return NULL;
3478 }
3479
1da177e4 3480 scatterlist = sglist->scatterlist;
45711f1a 3481 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3482
3483 sglist->order = order;
3484 sglist->num_sg = num_elem;
3485
3486 /* Allocate a bunch of sg elements */
3487 for (i = 0; i < num_elem; i++) {
3488 page = alloc_pages(GFP_KERNEL, order);
3489 if (!page) {
3490 ipr_trace;
3491
3492 /* Free up what we already allocated */
3493 for (j = i - 1; j >= 0; j--)
45711f1a 3494 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3495 kfree(sglist);
3496 return NULL;
3497 }
3498
642f1490 3499 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3500 }
3501
3502 return sglist;
3503}
3504
3505/**
3506 * ipr_free_ucode_buffer - Frees a microcode download buffer
3507 * @p_dnld: scatter/gather list pointer
3508 *
3509 * Free a DMA'able ucode download buffer previously allocated with
3510 * ipr_alloc_ucode_buffer
3511 *
3512 * Return value:
3513 * nothing
3514 **/
3515static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3516{
3517 int i;
3518
3519 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3520 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3521
3522 kfree(sglist);
3523}
3524
3525/**
3526 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3527 * @sglist: scatter/gather list pointer
3528 * @buffer: buffer pointer
3529 * @len: buffer length
3530 *
3531 * Copy a microcode image from a user buffer into a buffer allocated by
3532 * ipr_alloc_ucode_buffer
3533 *
3534 * Return value:
3535 * 0 on success / other on failure
3536 **/
3537static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3538 u8 *buffer, u32 len)
3539{
3540 int bsize_elem, i, result = 0;
3541 struct scatterlist *scatterlist;
3542 void *kaddr;
3543
3544 /* Determine the actual number of bytes per element */
3545 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3546
3547 scatterlist = sglist->scatterlist;
3548
3549 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3550 struct page *page = sg_page(&scatterlist[i]);
3551
3552 kaddr = kmap(page);
1da177e4 3553 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3554 kunmap(page);
1da177e4
LT		 3555
3556 scatterlist[i].length = bsize_elem;
3557
3558 if (result != 0) {
3559 ipr_trace;
3560 return result;
3561 }
3562 }
3563
3564 if (len % bsize_elem) {
45711f1a
JA		 3565 struct page *page = sg_page(&scatterlist[i]);
3566
3567 kaddr = kmap(page);
1da177e4 3568 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3569 kunmap(page);
1da177e4
LT		 3570
3571 scatterlist[i].length = len % bsize_elem;
3572 }
3573
3574 sglist->buffer_len = len;
3575 return result;
3576}
3577
a32c055f
WB		 3578/**
3579 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3580 * @ipr_cmd: ipr command struct
3581 * @sglist: scatter/gather list
3582 *
3583 * Builds a microcode download IOA data list (IOADL).
3584 *
3585 **/
3586static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3587 struct ipr_sglist *sglist)
3588{
3589 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3590 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3591 struct scatterlist *scatterlist = sglist->scatterlist;
3592 int i;
3593
3594 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3595 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3596 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3597
3598 ioarcb->ioadl_len =
3599 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3600 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3601 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3602 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3603 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3604 }
3605
3606 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3607}
3608
1da177e4 3609/**
12baa420 3610 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3611 * @ipr_cmd: ipr command struct
3612 * @sglist: scatter/gather list
1da177e4 3613 *
12baa420 3614 * Builds a microcode download IOA data list (IOADL).
1da177e4 3615 *
1da177e4 3616 **/
12baa420
BK		 3617static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3618 struct ipr_sglist *sglist)
1da177e4 3619{
1da177e4 3620 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3621 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3622 struct scatterlist *scatterlist = sglist->scatterlist;
3623 int i;
3624
12baa420 3625 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3626 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3627 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3628
3629 ioarcb->ioadl_len =
1da177e4
LT		 3630 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3631
3632 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3633 ioadl[i].flags_and_data_len =
3634 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3635 ioadl[i].address =
3636 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3637 }
3638
12baa420
BK		 3639 ioadl[i-1].flags_and_data_len |=
3640 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3641}
3642
3643/**
3644 * ipr_update_ioa_ucode - Update IOA's microcode
3645 * @ioa_cfg: ioa config struct
3646 * @sglist: scatter/gather list
3647 *
3648 * Initiate an adapter reset to update the IOA's microcode
3649 *
3650 * Return value:
3651 * 0 on success / -EIO on failure
3652 **/
3653static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3654 struct ipr_sglist *sglist)
3655{
3656 unsigned long lock_flags;
3657
3658 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 3659 while(ioa_cfg->in_reset_reload) {
3660 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3661 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3662 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3663 }
12baa420
BK		 3664
3665 if (ioa_cfg->ucode_sglist) {
3666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3667 dev_err(&ioa_cfg->pdev->dev,
3668 "Microcode download already in progress\n");
3669 return -EIO;
1da177e4 3670 }
12baa420
BK		 3671
3672 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3673 sglist->num_sg, DMA_TO_DEVICE);
3674
3675 if (!sglist->num_dma_sg) {
3676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3677 dev_err(&ioa_cfg->pdev->dev,
3678 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3679 return -EIO;
3680 }
3681
12baa420
BK		 3682 ioa_cfg->ucode_sglist = sglist;
3683 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3686
3687 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3688 ioa_cfg->ucode_sglist = NULL;
3689 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3690 return 0;
3691}
3692
3693/**
3694 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3695 * @class_dev: device struct
3696 * @buf: buffer
3697 * @count: buffer size
1da177e4
LT		 3698 *
3699 * This function will update the firmware on the adapter.
3700 *
3701 * Return value:
3702 * count on success / other on failure
3703 **/
ee959b00
TJ		 3704static ssize_t ipr_store_update_fw(struct device *dev,
3705 struct device_attribute *attr,
3706 const char *buf, size_t count)
1da177e4 3707{
ee959b00 3708 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3709 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3710 struct ipr_ucode_image_header *image_hdr;
3711 const struct firmware *fw_entry;
3712 struct ipr_sglist *sglist;
1da177e4
LT		 3713 char fname[100];
3714 char *src;
3715 int len, result, dnld_size;
3716
3717 if (!capable(CAP_SYS_ADMIN))
3718 return -EACCES;
3719
3720 len = snprintf(fname, 99, "%s", buf);
3721 fname[len-1] = '\0';
3722
3723 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3724 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3725 return -EIO;
3726 }
3727
3728 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3729
3730 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3731 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3732 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3733 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3734 release_firmware(fw_entry);
3735 return -EINVAL;
3736 }
3737
3738 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3739 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3740 sglist = ipr_alloc_ucode_buffer(dnld_size);
3741
3742 if (!sglist) {
3743 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3744 release_firmware(fw_entry);
3745 return -ENOMEM;
3746 }
3747
3748 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3749
3750 if (result) {
3751 dev_err(&ioa_cfg->pdev->dev,
3752 "Microcode buffer copy to DMA buffer failed\n");
12baa420 3753 goto out;
1da177e4
LT		 3754 }
3755
12baa420 3756 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 3757
12baa420
BK		 3758 if (!result)
3759 result = count;
3760out:
1da177e4
LT		 3761 ipr_free_ucode_buffer(sglist);
3762 release_firmware(fw_entry);
12baa420 3763 return result;
1da177e4
LT		 3764}
3765
ee959b00 3766static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 3767 .attr = {
3768 .name = "update_fw",
3769 .mode = S_IWUSR,
3770 },
3771 .store = ipr_store_update_fw
3772};
3773
75576bb9
WB		 3774/**
3775 * ipr_show_fw_type - Show the adapter's firmware type.
3776 * @dev: class device struct
3777 * @buf: buffer
3778 *
3779 * Return value:
3780 * number of bytes printed to buffer
3781 **/
3782static ssize_t ipr_show_fw_type(struct device *dev,
3783 struct device_attribute *attr, char *buf)
3784{
3785 struct Scsi_Host *shost = class_to_shost(dev);
3786 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3787 unsigned long lock_flags = 0;
3788 int len;
3789
3790 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3791 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3792 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3793 return len;
3794}
3795
3796static struct device_attribute ipr_ioa_fw_type_attr = {
3797 .attr = {
3798 .name = "fw_type",
3799 .mode = S_IRUGO,
3800 },
3801 .show = ipr_show_fw_type
3802};
3803
ee959b00 3804static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 3805 &ipr_fw_version_attr,
3806 &ipr_log_level_attr,
3807 &ipr_diagnostics_attr,
f37eb54b 3808 &ipr_ioa_state_attr,
1da177e4
LT		 3809 &ipr_ioa_reset_attr,
3810 &ipr_update_fw_attr,
75576bb9 3811 &ipr_ioa_fw_type_attr,
1da177e4
LT		 3812 NULL,
3813};
3814
3815#ifdef CONFIG_SCSI_IPR_DUMP
3816/**
3817 * ipr_read_dump - Dump the adapter
2c3c8bea 3818 * @filp: open sysfs file
1da177e4 3819 * @kobj: kobject struct
91a69029 3820 * @bin_attr: bin_attribute struct
1da177e4
LT		 3821 * @buf: buffer
3822 * @off: offset
3823 * @count: buffer size
3824 *
3825 * Return value:
3826 * number of bytes printed to buffer
3827 **/
2c3c8bea 3828static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3829 struct bin_attribute *bin_attr,
3830 char *buf, loff_t off, size_t count)
1da177e4 3831{
ee959b00 3832 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 3833 struct Scsi_Host *shost = class_to_shost(cdev);
3834 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3835 struct ipr_dump *dump;
3836 unsigned long lock_flags = 0;
3837 char *src;
3838 int len;
3839 size_t rc = count;
3840
3841 if (!capable(CAP_SYS_ADMIN))
3842 return -EACCES;
3843
3844 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3845 dump = ioa_cfg->dump;
3846
3847 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3848 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3849 return 0;
3850 }
3851 kref_get(&dump->kref);
3852 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3853
3854 if (off > dump->driver_dump.hdr.len) {
3855 kref_put(&dump->kref, ipr_release_dump);
3856 return 0;
3857 }
3858
3859 if (off + count > dump->driver_dump.hdr.len) {
3860 count = dump->driver_dump.hdr.len - off;
3861 rc = count;
3862 }
3863
3864 if (count && off < sizeof(dump->driver_dump)) {
3865 if (off + count > sizeof(dump->driver_dump))
3866 len = sizeof(dump->driver_dump) - off;
3867 else
3868 len = count;
3869 src = (u8 *)&dump->driver_dump + off;
3870 memcpy(buf, src, len);
3871 buf += len;
3872 off += len;
3873 count -= len;
3874 }
3875
3876 off -= sizeof(dump->driver_dump);
3877
3878 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3879 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3880 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3881 else
3882 len = count;
3883 src = (u8 *)&dump->ioa_dump + off;
3884 memcpy(buf, src, len);
3885 buf += len;
3886 off += len;
3887 count -= len;
3888 }
3889
3890 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3891
3892 while (count) {
3893 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3894 len = PAGE_ALIGN(off) - off;
3895 else
3896 len = count;
3897 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3898 src += off & ~PAGE_MASK;
3899 memcpy(buf, src, len);
3900 buf += len;
3901 off += len;
3902 count -= len;
3903 }
3904
3905 kref_put(&dump->kref, ipr_release_dump);
3906 return rc;
3907}
3908
3909/**
3910 * ipr_alloc_dump - Prepare for adapter dump
3911 * @ioa_cfg: ioa config struct
3912 *
3913 * Return value:
3914 * 0 on success / other on failure
3915 **/
3916static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3917{
3918 struct ipr_dump *dump;
3919 unsigned long lock_flags = 0;
3920
0bc42e35 3921 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 3922
3923 if (!dump) {
3924 ipr_err("Dump memory allocation failed\n");
3925 return -ENOMEM;
3926 }
3927
1da177e4
LT		 3928 kref_init(&dump->kref);
3929 dump->ioa_cfg = ioa_cfg;
3930
3931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3932
3933 if (INACTIVE != ioa_cfg->sdt_state) {
3934 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3935 kfree(dump);
3936 return 0;
3937 }
3938
3939 ioa_cfg->dump = dump;
3940 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3941 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3942 ioa_cfg->dump_taken = 1;
3943 schedule_work(&ioa_cfg->work_q);
3944 }
3945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3946
1da177e4
LT		 3947 return 0;
3948}
3949
3950/**
3951 * ipr_free_dump - Free adapter dump memory
3952 * @ioa_cfg: ioa config struct
3953 *
3954 * Return value:
3955 * 0 on success / other on failure
3956 **/
3957static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3958{
3959 struct ipr_dump *dump;
3960 unsigned long lock_flags = 0;
3961
3962 ENTER;
3963
3964 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3965 dump = ioa_cfg->dump;
3966 if (!dump) {
3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3968 return 0;
3969 }
3970
3971 ioa_cfg->dump = NULL;
3972 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3973
3974 kref_put(&dump->kref, ipr_release_dump);
3975
3976 LEAVE;
3977 return 0;
3978}
3979
3980/**
3981 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 3982 * @filp: open sysfs file
1da177e4 3983 * @kobj: kobject struct
91a69029 3984 * @bin_attr: bin_attribute struct
1da177e4
LT		 3985 * @buf: buffer
3986 * @off: offset
3987 * @count: buffer size
3988 *
3989 * Return value:
3990 * number of bytes printed to buffer
3991 **/
2c3c8bea 3992static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3993 struct bin_attribute *bin_attr,
3994 char *buf, loff_t off, size_t count)
1da177e4 3995{
ee959b00 3996 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 3997 struct Scsi_Host *shost = class_to_shost(cdev);
3998 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3999 int rc;
4000
4001 if (!capable(CAP_SYS_ADMIN))
4002 return -EACCES;
4003
4004 if (buf[0] == '1')
4005 rc = ipr_alloc_dump(ioa_cfg);
4006 else if (buf[0] == '0')
4007 rc = ipr_free_dump(ioa_cfg);
4008 else
4009 return -EINVAL;
4010
4011 if (rc)
4012 return rc;
4013 else
4014 return count;
4015}
4016
4017static struct bin_attribute ipr_dump_attr = {
4018 .attr = {
4019 .name = "dump",
4020 .mode = S_IRUSR | S_IWUSR,
4021 },
4022 .size = 0,
4023 .read = ipr_read_dump,
4024 .write = ipr_write_dump
4025};
4026#else
4027static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4028#endif
4029
4030/**
4031 * ipr_change_queue_depth - Change the device's queue depth
4032 * @sdev: scsi device struct
4033 * @qdepth: depth to set
e881a172 4034 * @reason: calling context
1da177e4
LT		 4035 *
4036 * Return value:
4037 * actual depth set
4038 **/
e881a172
MC		 4039static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4040 int reason)
1da177e4 4041{
35a39691
BK		 4042 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4043 struct ipr_resource_entry *res;
4044 unsigned long lock_flags = 0;
4045
e881a172
MC		 4046 if (reason != SCSI_QDEPTH_DEFAULT)
4047 return -EOPNOTSUPP;
4048
35a39691
BK		 4049 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4050 res = (struct ipr_resource_entry *)sdev->hostdata;
4051
4052 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4053 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4055
1da177e4
LT		 4056 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4057 return sdev->queue_depth;
4058}
4059
4060/**
4061 * ipr_change_queue_type - Change the device's queue type
4062 * @dsev: scsi device struct
4063 * @tag_type: type of tags to use
4064 *
4065 * Return value:
4066 * actual queue type set
4067 **/
4068static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4069{
4070 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4071 struct ipr_resource_entry *res;
4072 unsigned long lock_flags = 0;
4073
4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4075 res = (struct ipr_resource_entry *)sdev->hostdata;
4076
4077 if (res) {
4078 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4079 /*
4080 * We don't bother quiescing the device here since the
4081 * adapter firmware does it for us.
4082 */
4083 scsi_set_tag_type(sdev, tag_type);
4084
4085 if (tag_type)
4086 scsi_activate_tcq(sdev, sdev->queue_depth);
4087 else
4088 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4089 } else
4090 tag_type = 0;
4091 } else
4092 tag_type = 0;
4093
4094 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4095 return tag_type;
4096}
4097
4098/**
4099 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4100 * @dev: device struct
46d74563 4101 * @attr: device attribute structure
1da177e4
LT		 4102 * @buf: buffer
4103 *
4104 * Return value:
4105 * number of bytes printed to buffer
4106 **/
10523b3b 4107static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4108{
4109 struct scsi_device *sdev = to_scsi_device(dev);
4110 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4111 struct ipr_resource_entry *res;
4112 unsigned long lock_flags = 0;
4113 ssize_t len = -ENXIO;
4114
4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4116 res = (struct ipr_resource_entry *)sdev->hostdata;
4117 if (res)
3e7ebdfa 4118 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4119 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4120 return len;
4121}
4122
4123static struct device_attribute ipr_adapter_handle_attr = {
4124 .attr = {
4125 .name = "adapter_handle",
4126 .mode = S_IRUSR,
4127 },
4128 .show = ipr_show_adapter_handle
4129};
4130
3e7ebdfa 4131/**
5adcbeb3
WB		 4132 * ipr_show_resource_path - Show the resource path or the resource address for
4133 * this device.
3e7ebdfa 4134 * @dev: device struct
46d74563 4135 * @attr: device attribute structure
3e7ebdfa
WB		 4136 * @buf: buffer
4137 *
4138 * Return value:
4139 * number of bytes printed to buffer
4140 **/
4141static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4142{
4143 struct scsi_device *sdev = to_scsi_device(dev);
4144 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4145 struct ipr_resource_entry *res;
4146 unsigned long lock_flags = 0;
4147 ssize_t len = -ENXIO;
4148 char buffer[IPR_MAX_RES_PATH_LENGTH];
4149
4150 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4151 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4152 if (res && ioa_cfg->sis64)
3e7ebdfa 4153 len = snprintf(buf, PAGE_SIZE, "%s\n",
5adcbeb3
WB		 4154 ipr_format_res_path(res->res_path, buffer,
4155 sizeof(buffer)));
4156 else if (res)
4157 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4158 res->bus, res->target, res->lun);
4159
3e7ebdfa
WB		 4160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4161 return len;
4162}
4163
4164static struct device_attribute ipr_resource_path_attr = {
4165 .attr = {
4166 .name = "resource_path",
75576bb9 4167 .mode = S_IRUGO,
3e7ebdfa
WB		 4168 },
4169 .show = ipr_show_resource_path
4170};
4171
46d74563
WB		 4172/**
4173 * ipr_show_device_id - Show the device_id for this device.
4174 * @dev: device struct
4175 * @attr: device attribute structure
4176 * @buf: buffer
4177 *
4178 * Return value:
4179 * number of bytes printed to buffer
4180 **/
4181static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4182{
4183 struct scsi_device *sdev = to_scsi_device(dev);
4184 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4185 struct ipr_resource_entry *res;
4186 unsigned long lock_flags = 0;
4187 ssize_t len = -ENXIO;
4188
4189 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4190 res = (struct ipr_resource_entry *)sdev->hostdata;
4191 if (res && ioa_cfg->sis64)
4192 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4193 else if (res)
4194 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4195
4196 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4197 return len;
4198}
4199
4200static struct device_attribute ipr_device_id_attr = {
4201 .attr = {
4202 .name = "device_id",
4203 .mode = S_IRUGO,
4204 },
4205 .show = ipr_show_device_id
4206};
4207
75576bb9
WB		 4208/**
4209 * ipr_show_resource_type - Show the resource type for this device.
4210 * @dev: device struct
46d74563 4211 * @attr: device attribute structure
75576bb9
WB		 4212 * @buf: buffer
4213 *
4214 * Return value:
4215 * number of bytes printed to buffer
4216 **/
4217static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4218{
4219 struct scsi_device *sdev = to_scsi_device(dev);
4220 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4221 struct ipr_resource_entry *res;
4222 unsigned long lock_flags = 0;
4223 ssize_t len = -ENXIO;
4224
4225 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4226 res = (struct ipr_resource_entry *)sdev->hostdata;
4227
4228 if (res)
4229 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4230
4231 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4232 return len;
4233}
4234
4235static struct device_attribute ipr_resource_type_attr = {
4236 .attr = {
4237 .name = "resource_type",
4238 .mode = S_IRUGO,
4239 },
4240 .show = ipr_show_resource_type
4241};
4242
1da177e4
LT		 4243static struct device_attribute *ipr_dev_attrs[] = {
4244 &ipr_adapter_handle_attr,
3e7ebdfa 4245 &ipr_resource_path_attr,
46d74563 4246 &ipr_device_id_attr,
75576bb9 4247 &ipr_resource_type_attr,
1da177e4
LT		 4248 NULL,
4249};
4250
4251/**
4252 * ipr_biosparam - Return the HSC mapping
4253 * @sdev: scsi device struct
4254 * @block_device: block device pointer
4255 * @capacity: capacity of the device
4256 * @parm: Array containing returned HSC values.
4257 *
4258 * This function generates the HSC parms that fdisk uses.
4259 * We want to make sure we return something that places partitions
4260 * on 4k boundaries for best performance with the IOA.
4261 *
4262 * Return value:
4263 * 0 on success
4264 **/
4265static int ipr_biosparam(struct scsi_device *sdev,
4266 struct block_device *block_device,
4267 sector_t capacity, int *parm)
4268{
4269 int heads, sectors;
4270 sector_t cylinders;
4271
4272 heads = 128;
4273 sectors = 32;
4274
4275 cylinders = capacity;
4276 sector_div(cylinders, (128 * 32));
4277
4278 /* return result */
4279 parm[0] = heads;
4280 parm[1] = sectors;
4281 parm[2] = cylinders;
4282
4283 return 0;
4284}
4285
35a39691
BK		 4286/**
4287 * ipr_find_starget - Find target based on bus/target.
4288 * @starget: scsi target struct
4289 *
4290 * Return value:
4291 * resource entry pointer if found / NULL if not found
4292 **/
4293static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4294{
4295 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4296 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4297 struct ipr_resource_entry *res;
4298
4299 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4300 if ((res->bus == starget->channel) &&
4301 (res->target == starget->id) &&
4302 (res->lun == 0)) {
35a39691
BK		 4303 return res;
4304 }
4305 }
4306
4307 return NULL;
4308}
4309
4310static struct ata_port_info sata_port_info;
4311
4312/**
4313 * ipr_target_alloc - Prepare for commands to a SCSI target
4314 * @starget: scsi target struct
4315 *
4316 * If the device is a SATA device, this function allocates an
4317 * ATA port with libata, else it does nothing.
4318 *
4319 * Return value:
4320 * 0 on success / non-0 on failure
4321 **/
4322static int ipr_target_alloc(struct scsi_target *starget)
4323{
4324 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4325 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4326 struct ipr_sata_port *sata_port;
4327 struct ata_port *ap;
4328 struct ipr_resource_entry *res;
4329 unsigned long lock_flags;
4330
4331 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4332 res = ipr_find_starget(starget);
4333 starget->hostdata = NULL;
4334
4335 if (res && ipr_is_gata(res)) {
4336 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4337 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4338 if (!sata_port)
4339 return -ENOMEM;
4340
4341 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4342 if (ap) {
4343 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4344 sata_port->ioa_cfg = ioa_cfg;
4345 sata_port->ap = ap;
4346 sata_port->res = res;
4347
4348 res->sata_port = sata_port;
4349 ap->private_data = sata_port;
4350 starget->hostdata = sata_port;
4351 } else {
4352 kfree(sata_port);
4353 return -ENOMEM;
4354 }
4355 }
4356 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4357
4358 return 0;
4359}
4360
4361/**
4362 * ipr_target_destroy - Destroy a SCSI target
4363 * @starget: scsi target struct
4364 *
4365 * If the device was a SATA device, this function frees the libata
4366 * ATA port, else it does nothing.
4367 *
4368 **/
4369static void ipr_target_destroy(struct scsi_target *starget)
4370{
4371 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4372 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4373 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4374
4375 if (ioa_cfg->sis64) {
4376 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4377 clear_bit(starget->id, ioa_cfg->array_ids);
4378 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4379 clear_bit(starget->id, ioa_cfg->vset_ids);
4380 else if (starget->channel == 0)
4381 clear_bit(starget->id, ioa_cfg->target_ids);
4382 }
35a39691
BK		 4383
4384 if (sata_port) {
4385 starget->hostdata = NULL;
4386 ata_sas_port_destroy(sata_port->ap);
4387 kfree(sata_port);
4388 }
4389}
4390
4391/**
4392 * ipr_find_sdev - Find device based on bus/target/lun.
4393 * @sdev: scsi device struct
4394 *
4395 * Return value:
4396 * resource entry pointer if found / NULL if not found
4397 **/
4398static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4399{
4400 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4401 struct ipr_resource_entry *res;
4402
4403 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4404 if ((res->bus == sdev->channel) &&
4405 (res->target == sdev->id) &&
4406 (res->lun == sdev->lun))
35a39691
BK		 4407 return res;
4408 }
4409
4410 return NULL;
4411}
4412
1da177e4
LT		 4413/**
4414 * ipr_slave_destroy - Unconfigure a SCSI device
4415 * @sdev: scsi device struct
4416 *
4417 * Return value:
4418 * nothing
4419 **/
4420static void ipr_slave_destroy(struct scsi_device *sdev)
4421{
4422 struct ipr_resource_entry *res;
4423 struct ipr_ioa_cfg *ioa_cfg;
4424 unsigned long lock_flags = 0;
4425
4426 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4427
4428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4429 res = (struct ipr_resource_entry *) sdev->hostdata;
4430 if (res) {
35a39691 4431 if (res->sata_port)
3e4ec344 4432 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4433 sdev->hostdata = NULL;
4434 res->sdev = NULL;
35a39691 4435 res->sata_port = NULL;
1da177e4
LT		 4436 }
4437 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4438}
4439
4440/**
4441 * ipr_slave_configure - Configure a SCSI device
4442 * @sdev: scsi device struct
4443 *
4444 * This function configures the specified scsi device.
4445 *
4446 * Return value:
4447 * 0 on success
4448 **/
4449static int ipr_slave_configure(struct scsi_device *sdev)
4450{
4451 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4452 struct ipr_resource_entry *res;
dd406ef8 4453 struct ata_port *ap = NULL;
1da177e4 4454 unsigned long lock_flags = 0;
3e7ebdfa 4455 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4456
4457 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4458 res = sdev->hostdata;
4459 if (res) {
4460 if (ipr_is_af_dasd_device(res))
4461 sdev->type = TYPE_RAID;
0726ce26 4462 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4463 sdev->scsi_level = 4;
0726ce26
BK		 4464 sdev->no_uld_attach = 1;
4465 }
1da177e4 4466 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4467 blk_queue_rq_timeout(sdev->request_queue,
4468 IPR_VSET_RW_TIMEOUT);
086fa5ff 4469 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4470 }
dd406ef8
BK		 4471 if (ipr_is_gata(res) && res->sata_port)
4472 ap = res->sata_port->ap;
4473 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4474
4475 if (ap) {
35a39691 4476 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8
BK		 4477 ata_sas_slave_configure(sdev, ap);
4478 } else
35a39691 4479 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3e7ebdfa
WB		 4480 if (ioa_cfg->sis64)
4481 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
5adcbeb3
WB		 4482 ipr_format_res_path(res->res_path, buffer,
4483 sizeof(buffer)));
dd406ef8 4484 return 0;
1da177e4
LT		 4485 }
4486 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4487 return 0;
4488}
4489
35a39691
BK		 4490/**
4491 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4492 * @sdev: scsi device struct
4493 *
4494 * This function initializes an ATA port so that future commands
4495 * sent through queuecommand will work.
4496 *
4497 * Return value:
4498 * 0 on success
4499 **/
4500static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4501{
4502 struct ipr_sata_port *sata_port = NULL;
4503 int rc = -ENXIO;
4504
4505 ENTER;
4506 if (sdev->sdev_target)
4507 sata_port = sdev->sdev_target->hostdata;
4508 if (sata_port)
4509 rc = ata_sas_port_init(sata_port->ap);
4510 if (rc)
4511 ipr_slave_destroy(sdev);
4512
4513 LEAVE;
4514 return rc;
4515}
4516
1da177e4
LT		 4517/**
4518 * ipr_slave_alloc - Prepare for commands to a device.
4519 * @sdev: scsi device struct
4520 *
4521 * This function saves a pointer to the resource entry
4522 * in the scsi device struct if the device exists. We
4523 * can then use this pointer in ipr_queuecommand when
4524 * handling new commands.
4525 *
4526 * Return value:
692aebfc 4527 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4528 **/
4529static int ipr_slave_alloc(struct scsi_device *sdev)
4530{
4531 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4532 struct ipr_resource_entry *res;
4533 unsigned long lock_flags;
692aebfc 4534 int rc = -ENXIO;
1da177e4
LT		 4535
4536 sdev->hostdata = NULL;
4537
4538 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4539
35a39691
BK		 4540 res = ipr_find_sdev(sdev);
4541 if (res) {
4542 res->sdev = sdev;
4543 res->add_to_ml = 0;
4544 res->in_erp = 0;
4545 sdev->hostdata = res;
4546 if (!ipr_is_naca_model(res))
4547 res->needs_sync_complete = 1;
4548 rc = 0;
4549 if (ipr_is_gata(res)) {
4550 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4551 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4552 }
4553 }
4554
4555 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4556
692aebfc 4557 return rc;
1da177e4
LT		 4558}
4559
4560/**
4561 * ipr_eh_host_reset - Reset the host adapter
4562 * @scsi_cmd: scsi command struct
4563 *
4564 * Return value:
4565 * SUCCESS / FAILED
4566 **/
df0ae249 4567static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4568{
4569 struct ipr_ioa_cfg *ioa_cfg;
4570 int rc;
4571
4572 ENTER;
4573 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4574
4575 dev_err(&ioa_cfg->pdev->dev,
4576 "Adapter being reset as a result of error recovery.\n");
4577
4578 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4579 ioa_cfg->sdt_state = GET_DUMP;
4580
4581 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4582
4583 LEAVE;
4584 return rc;
4585}
4586
df0ae249
JG		 4587static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4588{
4589 int rc;
4590
4591 spin_lock_irq(cmd->device->host->host_lock);
4592 rc = __ipr_eh_host_reset(cmd);
4593 spin_unlock_irq(cmd->device->host->host_lock);
4594
4595 return rc;
4596}
4597
c6513096
BK		 4598/**
4599 * ipr_device_reset - Reset the device
4600 * @ioa_cfg: ioa config struct
4601 * @res: resource entry struct
4602 *
4603 * This function issues a device reset to the affected device.
4604 * If the device is a SCSI device, a LUN reset will be sent
4605 * to the device first. If that does not work, a target reset
35a39691
BK		 4606 * will be sent. If the device is a SATA device, a PHY reset will
4607 * be sent.
c6513096
BK		 4608 *
4609 * Return value:
4610 * 0 on success / non-zero on failure
4611 **/
4612static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4613 struct ipr_resource_entry *res)
4614{
4615 struct ipr_cmnd *ipr_cmd;
4616 struct ipr_ioarcb *ioarcb;
4617 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4618 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4619 u32 ioasc;
4620
4621 ENTER;
4622 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4623 ioarcb = &ipr_cmd->ioarcb;
4624 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4625
4626 if (ipr_cmd->ioa_cfg->sis64) {
4627 regs = &ipr_cmd->i.ata_ioadl.regs;
4628 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4629 } else
4630 regs = &ioarcb->u.add_data.u.regs;
c6513096 4631
3e7ebdfa 4632 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4633 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4634 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4635 if (ipr_is_gata(res)) {
4636 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4637 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4638 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4639 }
c6513096
BK		 4640
4641 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4642 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
c6513096 4643 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
96d21f00
WB		 4644 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4645 if (ipr_cmd->ioa_cfg->sis64)
4646 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4647 sizeof(struct ipr_ioasa_gata));
4648 else
4649 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4650 sizeof(struct ipr_ioasa_gata));
4651 }
c6513096
BK		 4652
4653 LEAVE;
4654 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4655}
4656
35a39691
BK		 4657/**
4658 * ipr_sata_reset - Reset the SATA port
cc0680a5 4659 * @link: SATA link to reset
35a39691
BK		 4660 * @classes: class of the attached device
4661 *
cc0680a5 4662 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4663 *
4664 * Return value:
4665 * 0 on success / non-zero on failure
4666 **/
cc0680a5 4667static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4668 unsigned long deadline)
35a39691 4669{
cc0680a5 4670 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4671 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4672 struct ipr_resource_entry *res;
4673 unsigned long lock_flags = 0;
4674 int rc = -ENXIO;
4675
4676 ENTER;
4677 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
73d98ff0
BK		 4678 while(ioa_cfg->in_reset_reload) {
4679 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4680 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4682 }
4683
35a39691
BK		 4684 res = sata_port->res;
4685 if (res) {
4686 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4687 *classes = res->ata_class;
35a39691
BK		 4688 }
4689
4690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4691 LEAVE;
4692 return rc;
4693}
4694
1da177e4
LT		 4695/**
4696 * ipr_eh_dev_reset - Reset the device
4697 * @scsi_cmd: scsi command struct
4698 *
4699 * This function issues a device reset to the affected device.
4700 * A LUN reset will be sent to the device first. If that does
4701 * not work, a target reset will be sent.
4702 *
4703 * Return value:
4704 * SUCCESS / FAILED
4705 **/
94d0e7b8 4706static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
1da177e4
LT		 4707{
4708 struct ipr_cmnd *ipr_cmd;
4709 struct ipr_ioa_cfg *ioa_cfg;
4710 struct ipr_resource_entry *res;
35a39691
BK		 4711 struct ata_port *ap;
4712 int rc = 0;
1da177e4
LT		 4713
4714 ENTER;
4715 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4716 res = scsi_cmd->device->hostdata;
4717
eeb88307 4718 if (!res)
1da177e4
LT		 4719 return FAILED;
4720
4721 /*
4722 * If we are currently going through reset/reload, return failed. This will force the
4723 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4724 * reset to complete
4725 */
4726 if (ioa_cfg->in_reset_reload)
4727 return FAILED;
4728 if (ioa_cfg->ioa_is_dead)
4729 return FAILED;
4730
4731 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4732 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
1da177e4
LT		 4733 if (ipr_cmd->scsi_cmd)
4734 ipr_cmd->done = ipr_scsi_eh_done;
24d6f2b5
BK		 4735 if (ipr_cmd->qc)
4736 ipr_cmd->done = ipr_sata_eh_done;
7402ecef
BK		 4737 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4738 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4739 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4740 }
1da177e4
LT		 4741 }
4742 }
4743
4744 res->resetting_device = 1;
fb3ed3cb 4745 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 4746
4747 if (ipr_is_gata(res) && res->sata_port) {
4748 ap = res->sata_port->ap;
4749 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 4750 ata_std_error_handler(ap);
35a39691 4751 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26
BK		 4752
4753 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3e7ebdfa 4754 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5af23d26
BK		 4755 rc = -EIO;
4756 break;
4757 }
4758 }
35a39691
BK		 4759 } else
4760 rc = ipr_device_reset(ioa_cfg, res);
1da177e4
LT		 4761 res->resetting_device = 0;
4762
1da177e4 4763 LEAVE;
c6513096 4764 return (rc ? FAILED : SUCCESS);
1da177e4
LT		 4765}
4766
94d0e7b8
JG		 4767static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4768{
4769 int rc;
4770
4771 spin_lock_irq(cmd->device->host->host_lock);
4772 rc = __ipr_eh_dev_reset(cmd);
4773 spin_unlock_irq(cmd->device->host->host_lock);
4774
4775 return rc;
4776}
4777
1da177e4
LT		 4778/**
4779 * ipr_bus_reset_done - Op done function for bus reset.
4780 * @ipr_cmd: ipr command struct
4781 *
4782 * This function is the op done function for a bus reset
4783 *
4784 * Return value:
4785 * none
4786 **/
4787static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4788{
4789 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4790 struct ipr_resource_entry *res;
4791
4792 ENTER;
3e7ebdfa
WB		 4793 if (!ioa_cfg->sis64)
4794 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4795 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4796 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4797 break;
4798 }
1da177e4 4799 }
1da177e4
LT		 4800
4801 /*
4802 * If abort has not completed, indicate the reset has, else call the
4803 * abort's done function to wake the sleeping eh thread
4804 */
4805 if (ipr_cmd->sibling->sibling)
4806 ipr_cmd->sibling->sibling = NULL;
4807 else
4808 ipr_cmd->sibling->done(ipr_cmd->sibling);
4809
4810 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4811 LEAVE;
4812}
4813
4814/**
4815 * ipr_abort_timeout - An abort task has timed out
4816 * @ipr_cmd: ipr command struct
4817 *
4818 * This function handles when an abort task times out. If this
4819 * happens we issue a bus reset since we have resources tied
4820 * up that must be freed before returning to the midlayer.
4821 *
4822 * Return value:
4823 * none
4824 **/
4825static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4826{
4827 struct ipr_cmnd *reset_cmd;
4828 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4829 struct ipr_cmd_pkt *cmd_pkt;
4830 unsigned long lock_flags = 0;
4831
4832 ENTER;
4833 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4834 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4835 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4836 return;
4837 }
4838
fb3ed3cb 4839 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 4840 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4841 ipr_cmd->sibling = reset_cmd;
4842 reset_cmd->sibling = ipr_cmd;
4843 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4844 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4845 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4846 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4847 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4848
4849 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4850 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4851 LEAVE;
4852}
4853
4854/**
4855 * ipr_cancel_op - Cancel specified op
4856 * @scsi_cmd: scsi command struct
4857 *
4858 * This function cancels specified op.
4859 *
4860 * Return value:
4861 * SUCCESS / FAILED
4862 **/
4863static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4864{
4865 struct ipr_cmnd *ipr_cmd;
4866 struct ipr_ioa_cfg *ioa_cfg;
4867 struct ipr_resource_entry *res;
4868 struct ipr_cmd_pkt *cmd_pkt;
4869 u32 ioasc;
4870 int op_found = 0;
4871
4872 ENTER;
4873 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4874 res = scsi_cmd->device->hostdata;
4875
8fa728a2
JG		 4876 /* If we are currently going through reset/reload, return failed.
4877 * This will force the mid-layer to call ipr_eh_host_reset,
4878 * which will then go to sleep and wait for the reset to complete
4879 */
4880 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4881 return FAILED;
04d9768f 4882 if (!res || !ipr_is_gscsi(res))
1da177e4
LT		 4883 return FAILED;
4884
4885 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4886 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4887 ipr_cmd->done = ipr_scsi_eh_done;
4888 op_found = 1;
4889 break;
4890 }
4891 }
4892
4893 if (!op_found)
4894 return SUCCESS;
4895
4896 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 4897 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 4898 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4899 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4900 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4901 ipr_cmd->u.sdev = scsi_cmd->device;
4902
fb3ed3cb
BK		 4903 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4904 scsi_cmd->cmnd[0]);
1da177e4 4905 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 4906 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 4907
4908 /*
4909 * If the abort task timed out and we sent a bus reset, we will get
4910 * one the following responses to the abort
4911 */
4912 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4913 ioasc = 0;
4914 ipr_trace;
4915 }
4916
4917 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
ee0a90fa
BK		 4918 if (!ipr_is_naca_model(res))
4919 res->needs_sync_complete = 1;
1da177e4
LT		 4920
4921 LEAVE;
4922 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4923}
4924
4925/**
4926 * ipr_eh_abort - Abort a single op
4927 * @scsi_cmd: scsi command struct
4928 *
4929 * Return value:
4930 * SUCCESS / FAILED
4931 **/
4932static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4933{
8fa728a2
JG		 4934 unsigned long flags;
4935 int rc;
1da177e4
LT		 4936
4937 ENTER;
1da177e4 4938
8fa728a2
JG		 4939 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4940 rc = ipr_cancel_op(scsi_cmd);
4941 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 4942
4943 LEAVE;
8fa728a2 4944 return rc;
1da177e4
LT		 4945}
4946
4947/**
4948 * ipr_handle_other_interrupt - Handle "other" interrupts
4949 * @ioa_cfg: ioa config struct
634651fa 4950 * @int_reg: interrupt register
1da177e4
LT		 4951 *
4952 * Return value:
4953 * IRQ_NONE / IRQ_HANDLED
4954 **/
634651fa
WB		 4955static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4956 volatile u32 int_reg)
1da177e4
LT		 4957{
4958 irqreturn_t rc = IRQ_HANDLED;
4959
4960 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4961 /* Mask the interrupt */
4962 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4963
4964 /* Clear the interrupt */
4965 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4966 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4967
4968 list_del(&ioa_cfg->reset_cmd->queue);
4969 del_timer(&ioa_cfg->reset_cmd->timer);
4970 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4971 } else {
4972 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4973 ioa_cfg->ioa_unit_checked = 1;
4974 else
4975 dev_err(&ioa_cfg->pdev->dev,
4976 "Permanent IOA failure. 0x%08X\n", int_reg);
4977
4978 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4979 ioa_cfg->sdt_state = GET_DUMP;
4980
4981 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4982 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4983 }
4984
4985 return rc;
4986}
4987
3feeb89d
WB		 4988/**
4989 * ipr_isr_eh - Interrupt service routine error handler
4990 * @ioa_cfg: ioa config struct
4991 * @msg: message to log
4992 *
4993 * Return value:
4994 * none
4995 **/
4996static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4997{
4998 ioa_cfg->errors_logged++;
4999 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5000
5001 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5002 ioa_cfg->sdt_state = GET_DUMP;
5003
5004 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5005}
5006
1da177e4
LT		 5007/**
5008 * ipr_isr - Interrupt service routine
5009 * @irq: irq number
5010 * @devp: pointer to ioa config struct
1da177e4
LT		 5011 *
5012 * Return value:
5013 * IRQ_NONE / IRQ_HANDLED
5014 **/
7d12e780 5015static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4
LT		 5016{
5017 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5018 unsigned long lock_flags = 0;
634651fa 5019 volatile u32 int_reg, int_mask_reg;
1da177e4
LT		 5020 u32 ioasc;
5021 u16 cmd_index;
3feeb89d 5022 int num_hrrq = 0;
1da177e4
LT		 5023 struct ipr_cmnd *ipr_cmd;
5024 irqreturn_t rc = IRQ_NONE;
5025
5026 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5027
5028 /* If interrupts are disabled, ignore the interrupt */
5029 if (!ioa_cfg->allow_interrupts) {
5030 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5031 return IRQ_NONE;
5032 }
5033
634651fa
WB		 5034 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5035 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
5036
5037 /* If an interrupt on the adapter did not occur, ignore it.
5038 * Or in the case of SIS 64, check for a stage change interrupt.
5039 */
5040 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
5041 if (ioa_cfg->sis64) {
5042 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5043 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5044 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5045
5046 /* clear stage change */
5047 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5048 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5049 list_del(&ioa_cfg->reset_cmd->queue);
5050 del_timer(&ioa_cfg->reset_cmd->timer);
5051 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5052 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5053 return IRQ_HANDLED;
5054 }
5055 }
5056
5057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5058 return IRQ_NONE;
5059 }
5060
1da177e4
LT		 5061 while (1) {
5062 ipr_cmd = NULL;
5063
5064 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5065 ioa_cfg->toggle_bit) {
5066
5067 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5068 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5069
5070 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
3feeb89d 5071 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
1da177e4
LT		 5072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5073 return IRQ_HANDLED;
5074 }
5075
5076 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5077
96d21f00 5078 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5079
5080 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5081
5082 list_del(&ipr_cmd->queue);
5083 del_timer(&ipr_cmd->timer);
5084 ipr_cmd->done(ipr_cmd);
5085
5086 rc = IRQ_HANDLED;
5087
5088 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5089 ioa_cfg->hrrq_curr++;
5090 } else {
5091 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5092 ioa_cfg->toggle_bit ^= 1u;
5093 }
5094 }
5095
5096 if (ipr_cmd != NULL) {
5097 /* Clear the PCI interrupt */
3feeb89d 5098 do {
214777ba 5099 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
634651fa 5100 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
3feeb89d
WB		 5101 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5102 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5103
5104 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
5105 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5106 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5107 return IRQ_HANDLED;
5108 }
5109
1da177e4
LT		 5110 } else
5111 break;
5112 }
5113
5114 if (unlikely(rc == IRQ_NONE))
634651fa 5115 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4
LT		 5116
5117 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5118 return rc;
5119}
5120
a32c055f
WB		 5121/**
5122 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5123 * @ioa_cfg: ioa config struct
5124 * @ipr_cmd: ipr command struct
5125 *
5126 * Return value:
5127 * 0 on success / -1 on failure
5128 **/
5129static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5130 struct ipr_cmnd *ipr_cmd)
5131{
5132 int i, nseg;
5133 struct scatterlist *sg;
5134 u32 length;
5135 u32 ioadl_flags = 0;
5136 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5137 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5138 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5139
5140 length = scsi_bufflen(scsi_cmd);
5141 if (!length)
5142 return 0;
5143
5144 nseg = scsi_dma_map(scsi_cmd);
5145 if (nseg < 0) {
5146 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5147 return -1;
5148 }
5149
5150 ipr_cmd->dma_use_sg = nseg;
5151
438b0331 5152 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5153 ioarcb->ioadl_len =
5154 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5155
a32c055f
WB		 5156 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5157 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5158 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5159 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5160 ioadl_flags = IPR_IOADL_FLAGS_READ;
5161
5162 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5163 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5164 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5165 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5166 }
5167
5168 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5169 return 0;
5170}
5171
1da177e4
LT		 5172/**
5173 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5174 * @ioa_cfg: ioa config struct
5175 * @ipr_cmd: ipr command struct
5176 *
5177 * Return value:
5178 * 0 on success / -1 on failure
5179 **/
5180static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5181 struct ipr_cmnd *ipr_cmd)
5182{
63015bc9
FT		 5183 int i, nseg;
5184 struct scatterlist *sg;
1da177e4
LT		 5185 u32 length;
5186 u32 ioadl_flags = 0;
5187 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5188 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5189 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5190
63015bc9
FT		 5191 length = scsi_bufflen(scsi_cmd);
5192 if (!length)
1da177e4
LT		 5193 return 0;
5194
63015bc9
FT		 5195 nseg = scsi_dma_map(scsi_cmd);
5196 if (nseg < 0) {
5197 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5198 return -1;
5199 }
51b1c7e1 5200
63015bc9
FT		 5201 ipr_cmd->dma_use_sg = nseg;
5202
5203 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5204 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5205 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5206 ioarcb->data_transfer_length = cpu_to_be32(length);
5207 ioarcb->ioadl_len =
63015bc9
FT		 5208 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5209 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5210 ioadl_flags = IPR_IOADL_FLAGS_READ;
5211 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5212 ioarcb->read_ioadl_len =
5213 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5214 }
1da177e4 5215
a32c055f
WB		 5216 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5217 ioadl = ioarcb->u.add_data.u.ioadl;
5218 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5219 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5220 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5221 }
1da177e4 5222
63015bc9
FT		 5223 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5224 ioadl[i].flags_and_data_len =
5225 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5226 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5227 }
5228
63015bc9
FT		 5229 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5230 return 0;
1da177e4
LT		 5231}
5232
5233/**
5234 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5235 * @scsi_cmd: scsi command struct
5236 *
5237 * Return value:
5238 * task attributes
5239 **/
5240static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5241{
5242 u8 tag[2];
5243 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5244
5245 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5246 switch (tag[0]) {
5247 case MSG_SIMPLE_TAG:
5248 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5249 break;
5250 case MSG_HEAD_TAG:
5251 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5252 break;
5253 case MSG_ORDERED_TAG:
5254 rc = IPR_FLAGS_LO_ORDERED_TASK;
5255 break;
5256 };
5257 }
5258
5259 return rc;
5260}
5261
5262/**
5263 * ipr_erp_done - Process completion of ERP for a device
5264 * @ipr_cmd: ipr command struct
5265 *
5266 * This function copies the sense buffer into the scsi_cmd
5267 * struct and pushes the scsi_done function.
5268 *
5269 * Return value:
5270 * nothing
5271 **/
5272static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5273{
5274 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5275 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5276 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 5277 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5278
5279 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5280 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5281 scmd_printk(KERN_ERR, scsi_cmd,
5282 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5283 } else {
5284 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5285 SCSI_SENSE_BUFFERSIZE);
5286 }
5287
5288 if (res) {
ee0a90fa
BK		 5289 if (!ipr_is_naca_model(res))
5290 res->needs_sync_complete = 1;
1da177e4
LT		 5291 res->in_erp = 0;
5292 }
63015bc9 5293 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5294 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5295 scsi_cmd->scsi_done(scsi_cmd);
5296}
5297
5298/**
5299 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5300 * @ipr_cmd: ipr command struct
5301 *
5302 * Return value:
5303 * none
5304 **/
5305static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5306{
51b1c7e1 5307 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5308 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5309 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5310
5311 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5312 ioarcb->data_transfer_length = 0;
1da177e4 5313 ioarcb->read_data_transfer_length = 0;
a32c055f 5314 ioarcb->ioadl_len = 0;
1da177e4 5315 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5316 ioasa->hdr.ioasc = 0;
5317 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5318
5319 if (ipr_cmd->ioa_cfg->sis64)
5320 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5321 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5322 else {
5323 ioarcb->write_ioadl_addr =
5324 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5325 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5326 }
1da177e4
LT		 5327}
5328
5329/**
5330 * ipr_erp_request_sense - Send request sense to a device
5331 * @ipr_cmd: ipr command struct
5332 *
5333 * This function sends a request sense to a device as a result
5334 * of a check condition.
5335 *
5336 * Return value:
5337 * nothing
5338 **/
5339static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5340{
5341 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5342 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5343
5344 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5345 ipr_erp_done(ipr_cmd);
5346 return;
5347 }
5348
5349 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5350
5351 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5352 cmd_pkt->cdb[0] = REQUEST_SENSE;
5353 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5354 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5355 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5356 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5357
a32c055f
WB		 5358 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5359 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5360
5361 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5362 IPR_REQUEST_SENSE_TIMEOUT * 2);
5363}
5364
5365/**
5366 * ipr_erp_cancel_all - Send cancel all to a device
5367 * @ipr_cmd: ipr command struct
5368 *
5369 * This function sends a cancel all to a device to clear the
5370 * queue. If we are running TCQ on the device, QERR is set to 1,
5371 * which means all outstanding ops have been dropped on the floor.
5372 * Cancel all will return them to us.
5373 *
5374 * Return value:
5375 * nothing
5376 **/
5377static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5378{
5379 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5380 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5381 struct ipr_cmd_pkt *cmd_pkt;
5382
5383 res->in_erp = 1;
5384
5385 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5386
5387 if (!scsi_get_tag_type(scsi_cmd->device)) {
5388 ipr_erp_request_sense(ipr_cmd);
5389 return;
5390 }
5391
5392 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5393 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5394 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5395
5396 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5397 IPR_CANCEL_ALL_TIMEOUT);
5398}
5399
5400/**
5401 * ipr_dump_ioasa - Dump contents of IOASA
5402 * @ioa_cfg: ioa config struct
5403 * @ipr_cmd: ipr command struct
fe964d0a 5404 * @res: resource entry struct
1da177e4
LT		 5405 *
5406 * This function is invoked by the interrupt handler when ops
5407 * fail. It will log the IOASA if appropriate. Only called
5408 * for GPDD ops.
5409 *
5410 * Return value:
5411 * none
5412 **/
5413static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5414 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5415{
5416 int i;
5417 u16 data_len;
b0692dd4 5418 u32 ioasc, fd_ioasc;
96d21f00 5419 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5420 __be32 *ioasa_data = (__be32 *)ioasa;
5421 int error_index;
5422
96d21f00
WB		 5423 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5424 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5425
5426 if (0 == ioasc)
5427 return;
5428
5429 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5430 return;
5431
b0692dd4
BK		 5432 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5433 error_index = ipr_get_error(fd_ioasc);
5434 else
5435 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5436
5437 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5438 /* Don't log an error if the IOA already logged one */
96d21f00 5439 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5440 return;
5441
cc9bd5d4
BK		 5442 if (!ipr_is_gscsi(res))
5443 return;
5444
1da177e4
LT		 5445 if (ipr_error_table[error_index].log_ioasa == 0)
5446 return;
5447 }
5448
fe964d0a 5449 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5450
96d21f00
WB		 5451 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5452 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5453 data_len = sizeof(struct ipr_ioasa64);
5454 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5455 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5456
5457 ipr_err("IOASA Dump:\n");
5458
5459 for (i = 0; i < data_len / 4; i += 4) {
5460 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5461 be32_to_cpu(ioasa_data[i]),
5462 be32_to_cpu(ioasa_data[i+1]),
5463 be32_to_cpu(ioasa_data[i+2]),
5464 be32_to_cpu(ioasa_data[i+3]));
5465 }
5466}
5467
5468/**
5469 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5470 * @ioasa: IOASA
5471 * @sense_buf: sense data buffer
5472 *
5473 * Return value:
5474 * none
5475 **/
5476static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5477{
5478 u32 failing_lba;
5479 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5480 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5481 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5482 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5483
5484 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5485
5486 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5487 return;
5488
5489 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5490
5491 if (ipr_is_vset_device(res) &&
5492 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5493 ioasa->u.vset.failing_lba_hi != 0) {
5494 sense_buf[0] = 0x72;
5495 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5496 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5497 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5498
5499 sense_buf[7] = 12;
5500 sense_buf[8] = 0;
5501 sense_buf[9] = 0x0A;
5502 sense_buf[10] = 0x80;
5503
5504 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5505
5506 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5507 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5508 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5509 sense_buf[15] = failing_lba & 0x000000ff;
5510
5511 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5512
5513 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5514 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5515 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5516 sense_buf[19] = failing_lba & 0x000000ff;
5517 } else {
5518 sense_buf[0] = 0x70;
5519 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5520 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5521 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5522
5523 /* Illegal request */
5524 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5525 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5526 sense_buf[7] = 10; /* additional length */
5527
5528 /* IOARCB was in error */
5529 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5530 sense_buf[15] = 0xC0;
5531 else /* Parameter data was invalid */
5532 sense_buf[15] = 0x80;
5533
5534 sense_buf[16] =
5535 ((IPR_FIELD_POINTER_MASK &
96d21f00 5536 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5537 sense_buf[17] =
5538 (IPR_FIELD_POINTER_MASK &
96d21f00 5539 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5540 } else {
5541 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5542 if (ipr_is_vset_device(res))
5543 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5544 else
5545 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5546
5547 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5548 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5549 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5550 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5551 sense_buf[6] = failing_lba & 0x000000ff;
5552 }
5553
5554 sense_buf[7] = 6; /* additional length */
5555 }
5556 }
5557}
5558
ee0a90fa
BK		 5559/**
5560 * ipr_get_autosense - Copy autosense data to sense buffer
5561 * @ipr_cmd: ipr command struct
5562 *
5563 * This function copies the autosense buffer to the buffer
5564 * in the scsi_cmd, if there is autosense available.
5565 *
5566 * Return value:
5567 * 1 if autosense was available / 0 if not
5568 **/
5569static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5570{
96d21f00
WB		 5571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 5573
96d21f00 5574 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 5575 return 0;
5576
96d21f00
WB		 5577 if (ipr_cmd->ioa_cfg->sis64)
5578 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5579 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5580 SCSI_SENSE_BUFFERSIZE));
5581 else
5582 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5583 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5584 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 5585 return 1;
5586}
5587
1da177e4
LT		 5588/**
5589 * ipr_erp_start - Process an error response for a SCSI op
5590 * @ioa_cfg: ioa config struct
5591 * @ipr_cmd: ipr command struct
5592 *
5593 * This function determines whether or not to initiate ERP
5594 * on the affected device.
5595 *
5596 * Return value:
5597 * nothing
5598 **/
5599static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5600 struct ipr_cmnd *ipr_cmd)
5601{
5602 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5603 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5604 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 5605 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5606
5607 if (!res) {
5608 ipr_scsi_eh_done(ipr_cmd);
5609 return;
5610 }
5611
8a048994 5612 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 5613 ipr_gen_sense(ipr_cmd);
5614
cc9bd5d4
BK		 5615 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5616
8a048994 5617 switch (masked_ioasc) {
1da177e4 5618 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 5619 if (ipr_is_naca_model(res))
5620 scsi_cmd->result |= (DID_ABORT << 16);
5621 else
5622 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 5623 break;
5624 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 5625 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 5626 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5627 break;
5628 case IPR_IOASC_HW_SEL_TIMEOUT:
5629 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 5630 if (!ipr_is_naca_model(res))
5631 res->needs_sync_complete = 1;
1da177e4
LT		 5632 break;
5633 case IPR_IOASC_SYNC_REQUIRED:
5634 if (!res->in_erp)
5635 res->needs_sync_complete = 1;
5636 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5637 break;
5638 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 5639 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 5640 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5641 break;
5642 case IPR_IOASC_BUS_WAS_RESET:
5643 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5644 /*
5645 * Report the bus reset and ask for a retry. The device
5646 * will give CC/UA the next command.
5647 */
5648 if (!res->resetting_device)
5649 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5650 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 5651 if (!ipr_is_naca_model(res))
5652 res->needs_sync_complete = 1;
1da177e4
LT		 5653 break;
5654 case IPR_IOASC_HW_DEV_BUS_STATUS:
5655 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5656 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 5657 if (!ipr_get_autosense(ipr_cmd)) {
5658 if (!ipr_is_naca_model(res)) {
5659 ipr_erp_cancel_all(ipr_cmd);
5660 return;
5661 }
5662 }
1da177e4 5663 }
ee0a90fa
BK		 5664 if (!ipr_is_naca_model(res))
5665 res->needs_sync_complete = 1;
1da177e4
LT		 5666 break;
5667 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5668 break;
5669 default:
5b7304fb
BK		 5670 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5671 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 5672 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 5673 res->needs_sync_complete = 1;
5674 break;
5675 }
5676
63015bc9 5677 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5678 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5679 scsi_cmd->scsi_done(scsi_cmd);
5680}
5681
5682/**
5683 * ipr_scsi_done - mid-layer done function
5684 * @ipr_cmd: ipr command struct
5685 *
5686 * This function is invoked by the interrupt handler for
5687 * ops generated by the SCSI mid-layer
5688 *
5689 * Return value:
5690 * none
5691 **/
5692static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5693{
5694 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5695 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 5696 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4 5697
96d21f00 5698 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 5699
5700 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
63015bc9 5701 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4
LT		 5702 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5703 scsi_cmd->scsi_done(scsi_cmd);
5704 } else
5705 ipr_erp_start(ioa_cfg, ipr_cmd);
5706}
5707
1da177e4
LT		 5708/**
5709 * ipr_queuecommand - Queue a mid-layer request
5710 * @scsi_cmd: scsi command struct
5711 * @done: done function
5712 *
5713 * This function queues a request generated by the mid-layer.
5714 *
5715 * Return value:
5716 * 0 on success
5717 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5718 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5719 **/
f281233d 5720static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
1da177e4
LT		 5721 void (*done) (struct scsi_cmnd *))
5722{
5723 struct ipr_ioa_cfg *ioa_cfg;
5724 struct ipr_resource_entry *res;
5725 struct ipr_ioarcb *ioarcb;
5726 struct ipr_cmnd *ipr_cmd;
5727 int rc = 0;
5728
5729 scsi_cmd->scsi_done = done;
5730 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5731 res = scsi_cmd->device->hostdata;
5732 scsi_cmd->result = (DID_OK << 16);
5733
5734 /*
5735 * We are currently blocking all devices due to a host reset
5736 * We have told the host to stop giving us new requests, but
5737 * ERP ops don't count. FIXME
5738 */
5739 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5740 return SCSI_MLQUEUE_HOST_BUSY;
5741
5742 /*
5743 * FIXME - Create scsi_set_host_offline interface
5744 * and the ioa_is_dead check can be removed
5745 */
5746 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5747 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5748 scsi_cmd->result = (DID_NO_CONNECT << 16);
5749 scsi_cmd->scsi_done(scsi_cmd);
5750 return 0;
5751 }
5752
35a39691 5753 if (ipr_is_gata(res) && res->sata_port)
b27dcfb0 5754 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
35a39691 5755
1da177e4
LT		 5756 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5757 ioarcb = &ipr_cmd->ioarcb;
5758 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5759
5760 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5761 ipr_cmd->scsi_cmd = scsi_cmd;
3e7ebdfa 5762 ioarcb->res_handle = res->res_handle;
1da177e4 5763 ipr_cmd->done = ipr_scsi_done;
3e7ebdfa 5764 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
1da177e4
LT		 5765
5766 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5767 if (scsi_cmd->underflow == 0)
5768 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5769
5770 if (res->needs_sync_complete) {
5771 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5772 res->needs_sync_complete = 0;
5773 }
5774
5775 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
ab6c10b1
WB		 5776 if (ipr_is_gscsi(res))
5777 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
1da177e4
LT		 5778 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5779 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5780 }
5781
5782 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5783 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5784 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5785
a32c055f
WB		 5786 if (likely(rc == 0)) {
5787 if (ioa_cfg->sis64)
5788 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5789 else
5790 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5791 }
1da177e4
LT		 5792
5793 if (likely(rc == 0)) {
5794 mb();
a32c055f 5795 ipr_send_command(ipr_cmd);
1da177e4
LT		 5796 } else {
5797 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5798 return SCSI_MLQUEUE_HOST_BUSY;
5799 }
5800
5801 return 0;
5802}
5803
f281233d
JG		 5804static DEF_SCSI_QCMD(ipr_queuecommand)
5805
35a39691
BK		 5806/**
5807 * ipr_ioctl - IOCTL handler
5808 * @sdev: scsi device struct
5809 * @cmd: IOCTL cmd
5810 * @arg: IOCTL arg
5811 *
5812 * Return value:
5813 * 0 on success / other on failure
5814 **/
bd705f2d 5815static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 5816{
5817 struct ipr_resource_entry *res;
5818
5819 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 5820 if (res && ipr_is_gata(res)) {
5821 if (cmd == HDIO_GET_IDENTITY)
5822 return -ENOTTY;
94be9a58 5823 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 5824 }
35a39691
BK		 5825
5826 return -EINVAL;
5827}
5828
1da177e4
LT		 5829/**
5830 * ipr_info - Get information about the card/driver
5831 * @scsi_host: scsi host struct
5832 *
5833 * Return value:
5834 * pointer to buffer with description string
5835 **/
5836static const char * ipr_ioa_info(struct Scsi_Host *host)
5837{
5838 static char buffer[512];
5839 struct ipr_ioa_cfg *ioa_cfg;
5840 unsigned long lock_flags = 0;
5841
5842 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5843
5844 spin_lock_irqsave(host->host_lock, lock_flags);
5845 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5846 spin_unlock_irqrestore(host->host_lock, lock_flags);
5847
5848 return buffer;
5849}
5850
5851static struct scsi_host_template driver_template = {
5852 .module = THIS_MODULE,
5853 .name = "IPR",
5854 .info = ipr_ioa_info,
35a39691 5855 .ioctl = ipr_ioctl,
1da177e4
LT		 5856 .queuecommand = ipr_queuecommand,
5857 .eh_abort_handler = ipr_eh_abort,
5858 .eh_device_reset_handler = ipr_eh_dev_reset,
5859 .eh_host_reset_handler = ipr_eh_host_reset,
5860 .slave_alloc = ipr_slave_alloc,
5861 .slave_configure = ipr_slave_configure,
5862 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 5863 .target_alloc = ipr_target_alloc,
5864 .target_destroy = ipr_target_destroy,
1da177e4
LT		 5865 .change_queue_depth = ipr_change_queue_depth,
5866 .change_queue_type = ipr_change_queue_type,
5867 .bios_param = ipr_biosparam,
5868 .can_queue = IPR_MAX_COMMANDS,
5869 .this_id = -1,
5870 .sg_tablesize = IPR_MAX_SGLIST,
5871 .max_sectors = IPR_IOA_MAX_SECTORS,
5872 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5873 .use_clustering = ENABLE_CLUSTERING,
5874 .shost_attrs = ipr_ioa_attrs,
5875 .sdev_attrs = ipr_dev_attrs,
5876 .proc_name = IPR_NAME
5877};
5878
35a39691
BK		 5879/**
5880 * ipr_ata_phy_reset - libata phy_reset handler
5881 * @ap: ata port to reset
5882 *
5883 **/
5884static void ipr_ata_phy_reset(struct ata_port *ap)
5885{
5886 unsigned long flags;
5887 struct ipr_sata_port *sata_port = ap->private_data;
5888 struct ipr_resource_entry *res = sata_port->res;
5889 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5890 int rc;
5891
5892 ENTER;
5893 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5894 while(ioa_cfg->in_reset_reload) {
5895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5896 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5897 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5898 }
5899
5900 if (!ioa_cfg->allow_cmds)
5901 goto out_unlock;
5902
5903 rc = ipr_device_reset(ioa_cfg, res);
5904
5905 if (rc) {
3e4ec344 5906 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5907 goto out_unlock;
5908 }
5909
3e7ebdfa
WB		 5910 ap->link.device[0].class = res->ata_class;
5911 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 5912 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 5913
5914out_unlock:
5915 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5916 LEAVE;
5917}
5918
5919/**
5920 * ipr_ata_post_internal - Cleanup after an internal command
5921 * @qc: ATA queued command
5922 *
5923 * Return value:
5924 * none
5925 **/
5926static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5927{
5928 struct ipr_sata_port *sata_port = qc->ap->private_data;
5929 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5930 struct ipr_cmnd *ipr_cmd;
5931 unsigned long flags;
5932
5933 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
73d98ff0
BK		 5934 while(ioa_cfg->in_reset_reload) {
5935 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5936 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5937 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5938 }
5939
35a39691
BK		 5940 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5941 if (ipr_cmd->qc == qc) {
5942 ipr_device_reset(ioa_cfg, sata_port->res);
5943 break;
5944 }
5945 }
5946 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5947}
5948
35a39691
BK		 5949/**
5950 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5951 * @regs: destination
5952 * @tf: source ATA taskfile
5953 *
5954 * Return value:
5955 * none
5956 **/
5957static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5958 struct ata_taskfile *tf)
5959{
5960 regs->feature = tf->feature;
5961 regs->nsect = tf->nsect;
5962 regs->lbal = tf->lbal;
5963 regs->lbam = tf->lbam;
5964 regs->lbah = tf->lbah;
5965 regs->device = tf->device;
5966 regs->command = tf->command;
5967 regs->hob_feature = tf->hob_feature;
5968 regs->hob_nsect = tf->hob_nsect;
5969 regs->hob_lbal = tf->hob_lbal;
5970 regs->hob_lbam = tf->hob_lbam;
5971 regs->hob_lbah = tf->hob_lbah;
5972 regs->ctl = tf->ctl;
5973}
5974
5975/**
5976 * ipr_sata_done - done function for SATA commands
5977 * @ipr_cmd: ipr command struct
5978 *
5979 * This function is invoked by the interrupt handler for
5980 * ops generated by the SCSI mid-layer to SATA devices
5981 *
5982 * Return value:
5983 * none
5984 **/
5985static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5986{
5987 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5988 struct ata_queued_cmd *qc = ipr_cmd->qc;
5989 struct ipr_sata_port *sata_port = qc->ap->private_data;
5990 struct ipr_resource_entry *res = sata_port->res;
96d21f00 5991 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 5992
96d21f00
WB		 5993 if (ipr_cmd->ioa_cfg->sis64)
5994 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5995 sizeof(struct ipr_ioasa_gata));
5996 else
5997 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5998 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 5999 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6000
96d21f00 6001 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6002 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6003
6004 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6005 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6006 else
96d21f00 6007 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
35a39691
BK		 6008 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6009 ata_qc_complete(qc);
6010}
6011
a32c055f
WB		 6012/**
6013 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6014 * @ipr_cmd: ipr command struct
6015 * @qc: ATA queued command
6016 *
6017 **/
6018static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6019 struct ata_queued_cmd *qc)
6020{
6021 u32 ioadl_flags = 0;
6022 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6023 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6024 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6025 int len = qc->nbytes;
6026 struct scatterlist *sg;
6027 unsigned int si;
6028 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6029
6030 if (len == 0)
6031 return;
6032
6033 if (qc->dma_dir == DMA_TO_DEVICE) {
6034 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6035 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6036 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6037 ioadl_flags = IPR_IOADL_FLAGS_READ;
6038
6039 ioarcb->data_transfer_length = cpu_to_be32(len);
6040 ioarcb->ioadl_len =
6041 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6042 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6043 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6044
6045 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6046 ioadl64->flags = cpu_to_be32(ioadl_flags);
6047 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6048 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6049
6050 last_ioadl64 = ioadl64;
6051 ioadl64++;
6052 }
6053
6054 if (likely(last_ioadl64))
6055 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6056}
6057
35a39691
BK		 6058/**
6059 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6060 * @ipr_cmd: ipr command struct
6061 * @qc: ATA queued command
6062 *
6063 **/
6064static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6065 struct ata_queued_cmd *qc)
6066{
6067 u32 ioadl_flags = 0;
6068 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6069 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6070 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6071 int len = qc->nbytes;
35a39691 6072 struct scatterlist *sg;
ff2aeb1e 6073 unsigned int si;
35a39691
BK		 6074
6075 if (len == 0)
6076 return;
6077
6078 if (qc->dma_dir == DMA_TO_DEVICE) {
6079 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6080 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6081 ioarcb->data_transfer_length = cpu_to_be32(len);
6082 ioarcb->ioadl_len =
35a39691
BK		 6083 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6084 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6085 ioadl_flags = IPR_IOADL_FLAGS_READ;
6086 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6087 ioarcb->read_ioadl_len =
6088 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6089 }
6090
ff2aeb1e 6091 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6092 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6093 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6094
6095 last_ioadl = ioadl;
6096 ioadl++;
35a39691 6097 }
3be6cbd7
JG		 6098
6099 if (likely(last_ioadl))
6100 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6101}
6102
6103/**
6104 * ipr_qc_issue - Issue a SATA qc to a device
6105 * @qc: queued command
6106 *
6107 * Return value:
6108 * 0 if success
6109 **/
6110static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6111{
6112 struct ata_port *ap = qc->ap;
6113 struct ipr_sata_port *sata_port = ap->private_data;
6114 struct ipr_resource_entry *res = sata_port->res;
6115 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6116 struct ipr_cmnd *ipr_cmd;
6117 struct ipr_ioarcb *ioarcb;
6118 struct ipr_ioarcb_ata_regs *regs;
6119
6120 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
0feeed82 6121 return AC_ERR_SYSTEM;
35a39691
BK		 6122
6123 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6124 ioarcb = &ipr_cmd->ioarcb;
35a39691 6125
a32c055f
WB		 6126 if (ioa_cfg->sis64) {
6127 regs = &ipr_cmd->i.ata_ioadl.regs;
6128 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6129 } else
6130 regs = &ioarcb->u.add_data.u.regs;
6131
6132 memset(regs, 0, sizeof(*regs));
6133 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691
BK		 6134
6135 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6136 ipr_cmd->qc = qc;
6137 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6138 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6139 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6140 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6141 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6142 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6143
a32c055f
WB		 6144 if (ioa_cfg->sis64)
6145 ipr_build_ata_ioadl64(ipr_cmd, qc);
6146 else
6147 ipr_build_ata_ioadl(ipr_cmd, qc);
6148
35a39691
BK		 6149 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6150 ipr_copy_sata_tf(regs, &qc->tf);
6151 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6152 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6153
6154 switch (qc->tf.protocol) {
6155 case ATA_PROT_NODATA:
6156 case ATA_PROT_PIO:
6157 break;
6158
6159 case ATA_PROT_DMA:
6160 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6161 break;
6162
0dc36888
TH		 6163 case ATAPI_PROT_PIO:
6164 case ATAPI_PROT_NODATA:
35a39691
BK		 6165 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6166 break;
6167
0dc36888 6168 case ATAPI_PROT_DMA:
35a39691
BK		 6169 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6170 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6171 break;
6172
6173 default:
6174 WARN_ON(1);
0feeed82 6175 return AC_ERR_INVALID;
35a39691
BK		 6176 }
6177
6178 mb();
a32c055f
WB		 6179
6180 ipr_send_command(ipr_cmd);
6181
35a39691
BK		 6182 return 0;
6183}
6184
4c9bf4e7
TH		 6185/**
6186 * ipr_qc_fill_rtf - Read result TF
6187 * @qc: ATA queued command
6188 *
6189 * Return value:
6190 * true
6191 **/
6192static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6193{
6194 struct ipr_sata_port *sata_port = qc->ap->private_data;
6195 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6196 struct ata_taskfile *tf = &qc->result_tf;
6197
6198 tf->feature = g->error;
6199 tf->nsect = g->nsect;
6200 tf->lbal = g->lbal;
6201 tf->lbam = g->lbam;
6202 tf->lbah = g->lbah;
6203 tf->device = g->device;
6204 tf->command = g->status;
6205 tf->hob_nsect = g->hob_nsect;
6206 tf->hob_lbal = g->hob_lbal;
6207 tf->hob_lbam = g->hob_lbam;
6208 tf->hob_lbah = g->hob_lbah;
6209 tf->ctl = g->alt_status;
6210
6211 return true;
6212}
6213
35a39691 6214static struct ata_port_operations ipr_sata_ops = {
35a39691 6215 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6216 .hardreset = ipr_sata_reset,
35a39691 6217 .post_internal_cmd = ipr_ata_post_internal,
35a39691
BK		 6218 .qc_prep = ata_noop_qc_prep,
6219 .qc_issue = ipr_qc_issue,
4c9bf4e7 6220 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6221 .port_start = ata_sas_port_start,
6222 .port_stop = ata_sas_port_stop
6223};
6224
6225static struct ata_port_info sata_port_info = {
9cbe056f 6226 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
0f2e0330
SS		 6227 .pio_mask = ATA_PIO4_ONLY,
6228 .mwdma_mask = ATA_MWDMA2,
6229 .udma_mask = ATA_UDMA6,
35a39691
BK		 6230 .port_ops = &ipr_sata_ops
6231};
6232
1da177e4
LT		 6233#ifdef CONFIG_PPC_PSERIES
6234static const u16 ipr_blocked_processors[] = {
6235 PV_NORTHSTAR,
6236 PV_PULSAR,
6237 PV_POWER4,
6238 PV_ICESTAR,
6239 PV_SSTAR,
6240 PV_POWER4p,
6241 PV_630,
6242 PV_630p
6243};
6244
6245/**
6246 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6247 * @ioa_cfg: ioa cfg struct
6248 *
6249 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6250 * certain pSeries hardware. This function determines if the given
6251 * adapter is in one of these confgurations or not.
6252 *
6253 * Return value:
6254 * 1 if adapter is not supported / 0 if adapter is supported
6255 **/
6256static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6257{
1da177e4
LT		 6258 int i;
6259
44c10138
AK		 6260 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6261 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6262 if (__is_processor(ipr_blocked_processors[i]))
6263 return 1;
1da177e4
LT		 6264 }
6265 }
6266 return 0;
6267}
6268#else
6269#define ipr_invalid_adapter(ioa_cfg) 0
6270#endif
6271
6272/**
6273 * ipr_ioa_bringdown_done - IOA bring down completion.
6274 * @ipr_cmd: ipr command struct
6275 *
6276 * This function processes the completion of an adapter bring down.
6277 * It wakes any reset sleepers.
6278 *
6279 * Return value:
6280 * IPR_RC_JOB_RETURN
6281 **/
6282static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6283{
6284 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6285
6286 ENTER;
6287 ioa_cfg->in_reset_reload = 0;
6288 ioa_cfg->reset_retries = 0;
6289 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6290 wake_up_all(&ioa_cfg->reset_wait_q);
6291
6292 spin_unlock_irq(ioa_cfg->host->host_lock);
6293 scsi_unblock_requests(ioa_cfg->host);
6294 spin_lock_irq(ioa_cfg->host->host_lock);
6295 LEAVE;
6296
6297 return IPR_RC_JOB_RETURN;
6298}
6299
6300/**
6301 * ipr_ioa_reset_done - IOA reset completion.
6302 * @ipr_cmd: ipr command struct
6303 *
6304 * This function processes the completion of an adapter reset.
6305 * It schedules any necessary mid-layer add/removes and
6306 * wakes any reset sleepers.
6307 *
6308 * Return value:
6309 * IPR_RC_JOB_RETURN
6310 **/
6311static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6312{
6313 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6314 struct ipr_resource_entry *res;
6315 struct ipr_hostrcb *hostrcb, *temp;
6316 int i = 0;
6317
6318 ENTER;
6319 ioa_cfg->in_reset_reload = 0;
6320 ioa_cfg->allow_cmds = 1;
6321 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6322 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6323
6324 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6325 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6326 ipr_trace;
6327 break;
6328 }
6329 }
6330 schedule_work(&ioa_cfg->work_q);
6331
6332 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6333 list_del(&hostrcb->queue);
6334 if (i++ < IPR_NUM_LOG_HCAMS)
6335 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6336 else
6337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6338 }
6339
6bb04170 6340 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6341 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6342
6343 ioa_cfg->reset_retries = 0;
6344 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6345 wake_up_all(&ioa_cfg->reset_wait_q);
6346
30237853 6347 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6348 scsi_unblock_requests(ioa_cfg->host);
30237853 6349 spin_lock(ioa_cfg->host->host_lock);
1da177e4
LT		 6350
6351 if (!ioa_cfg->allow_cmds)
6352 scsi_block_requests(ioa_cfg->host);
6353
6354 LEAVE;
6355 return IPR_RC_JOB_RETURN;
6356}
6357
6358/**
6359 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6360 * @supported_dev: supported device struct
6361 * @vpids: vendor product id struct
6362 *
6363 * Return value:
6364 * none
6365 **/
6366static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6367 struct ipr_std_inq_vpids *vpids)
6368{
6369 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6370 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6371 supported_dev->num_records = 1;
6372 supported_dev->data_length =
6373 cpu_to_be16(sizeof(struct ipr_supported_device));
6374 supported_dev->reserved = 0;
6375}
6376
6377/**
6378 * ipr_set_supported_devs - Send Set Supported Devices for a device
6379 * @ipr_cmd: ipr command struct
6380 *
a32c055f 6381 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6382 *
6383 * Return value:
6384 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6385 **/
6386static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6387{
6388 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6389 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6390 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6391 struct ipr_resource_entry *res = ipr_cmd->u.res;
6392
6393 ipr_cmd->job_step = ipr_ioa_reset_done;
6394
6395 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6396 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6397 continue;
6398
6399 ipr_cmd->u.res = res;
3e7ebdfa 6400 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6401
6402 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6403 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6404 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6405
6406 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6407 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6408 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6409 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6410
a32c055f
WB		 6411 ipr_init_ioadl(ipr_cmd,
6412 ioa_cfg->vpd_cbs_dma +
6413 offsetof(struct ipr_misc_cbs, supp_dev),
6414 sizeof(struct ipr_supported_device),
6415 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6416
6417 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6418 IPR_SET_SUP_DEVICE_TIMEOUT);
6419
3e7ebdfa
WB		 6420 if (!ioa_cfg->sis64)
6421 ipr_cmd->job_step = ipr_set_supported_devs;
1da177e4
LT		 6422 return IPR_RC_JOB_RETURN;
6423 }
6424
6425 return IPR_RC_JOB_CONTINUE;
6426}
6427
6428/**
6429 * ipr_get_mode_page - Locate specified mode page
6430 * @mode_pages: mode page buffer
6431 * @page_code: page code to find
6432 * @len: minimum required length for mode page
6433 *
6434 * Return value:
6435 * pointer to mode page / NULL on failure
6436 **/
6437static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6438 u32 page_code, u32 len)
6439{
6440 struct ipr_mode_page_hdr *mode_hdr;
6441 u32 page_length;
6442 u32 length;
6443
6444 if (!mode_pages || (mode_pages->hdr.length == 0))
6445 return NULL;
6446
6447 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6448 mode_hdr = (struct ipr_mode_page_hdr *)
6449 (mode_pages->data + mode_pages->hdr.block_desc_len);
6450
6451 while (length) {
6452 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6453 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6454 return mode_hdr;
6455 break;
6456 } else {
6457 page_length = (sizeof(struct ipr_mode_page_hdr) +
6458 mode_hdr->page_length);
6459 length -= page_length;
6460 mode_hdr = (struct ipr_mode_page_hdr *)
6461 ((unsigned long)mode_hdr + page_length);
6462 }
6463 }
6464 return NULL;
6465}
6466
6467/**
6468 * ipr_check_term_power - Check for term power errors
6469 * @ioa_cfg: ioa config struct
6470 * @mode_pages: IOAFP mode pages buffer
6471 *
6472 * Check the IOAFP's mode page 28 for term power errors
6473 *
6474 * Return value:
6475 * nothing
6476 **/
6477static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6478 struct ipr_mode_pages *mode_pages)
6479{
6480 int i;
6481 int entry_length;
6482 struct ipr_dev_bus_entry *bus;
6483 struct ipr_mode_page28 *mode_page;
6484
6485 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6486 sizeof(struct ipr_mode_page28));
6487
6488 entry_length = mode_page->entry_length;
6489
6490 bus = mode_page->bus;
6491
6492 for (i = 0; i < mode_page->num_entries; i++) {
6493 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6494 dev_err(&ioa_cfg->pdev->dev,
6495 "Term power is absent on scsi bus %d\n",
6496 bus->res_addr.bus);
6497 }
6498
6499 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6500 }
6501}
6502
6503/**
6504 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6505 * @ioa_cfg: ioa config struct
6506 *
6507 * Looks through the config table checking for SES devices. If
6508 * the SES device is in the SES table indicating a maximum SCSI
6509 * bus speed, the speed is limited for the bus.
6510 *
6511 * Return value:
6512 * none
6513 **/
6514static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6515{
6516 u32 max_xfer_rate;
6517 int i;
6518
6519 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6520 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6521 ioa_cfg->bus_attr[i].bus_width);
6522
6523 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6524 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6525 }
6526}
6527
6528/**
6529 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6530 * @ioa_cfg: ioa config struct
6531 * @mode_pages: mode page 28 buffer
6532 *
6533 * Updates mode page 28 based on driver configuration
6534 *
6535 * Return value:
6536 * none
6537 **/
6538static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6539 struct ipr_mode_pages *mode_pages)
6540{
6541 int i, entry_length;
6542 struct ipr_dev_bus_entry *bus;
6543 struct ipr_bus_attributes *bus_attr;
6544 struct ipr_mode_page28 *mode_page;
6545
6546 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6547 sizeof(struct ipr_mode_page28));
6548
6549 entry_length = mode_page->entry_length;
6550
6551 /* Loop for each device bus entry */
6552 for (i = 0, bus = mode_page->bus;
6553 i < mode_page->num_entries;
6554 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6555 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6556 dev_err(&ioa_cfg->pdev->dev,
6557 "Invalid resource address reported: 0x%08X\n",
6558 IPR_GET_PHYS_LOC(bus->res_addr));
6559 continue;
6560 }
6561
6562 bus_attr = &ioa_cfg->bus_attr[i];
6563 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6564 bus->bus_width = bus_attr->bus_width;
6565 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6566 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6567 if (bus_attr->qas_enabled)
6568 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6569 else
6570 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6571 }
6572}
6573
6574/**
6575 * ipr_build_mode_select - Build a mode select command
6576 * @ipr_cmd: ipr command struct
6577 * @res_handle: resource handle to send command to
6578 * @parm: Byte 2 of Mode Sense command
6579 * @dma_addr: DMA buffer address
6580 * @xfer_len: data transfer length
6581 *
6582 * Return value:
6583 * none
6584 **/
6585static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 6586 __be32 res_handle, u8 parm,
6587 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6588{
1da177e4
LT		 6589 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6590
6591 ioarcb->res_handle = res_handle;
6592 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6593 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6594 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6595 ioarcb->cmd_pkt.cdb[1] = parm;
6596 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6597
a32c055f 6598 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6599}
6600
6601/**
6602 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6603 * @ipr_cmd: ipr command struct
6604 *
6605 * This function sets up the SCSI bus attributes and sends
6606 * a Mode Select for Page 28 to activate them.
6607 *
6608 * Return value:
6609 * IPR_RC_JOB_RETURN
6610 **/
6611static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6612{
6613 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6614 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6615 int length;
6616
6617 ENTER;
4733804c
BK		 6618 ipr_scsi_bus_speed_limit(ioa_cfg);
6619 ipr_check_term_power(ioa_cfg, mode_pages);
6620 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6621 length = mode_pages->hdr.length + 1;
6622 mode_pages->hdr.length = 0;
1da177e4
LT		 6623
6624 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6625 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6626 length);
6627
f72919ec
WB		 6628 ipr_cmd->job_step = ipr_set_supported_devs;
6629 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6630 struct ipr_resource_entry, queue);
1da177e4
LT		 6631 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6632
6633 LEAVE;
6634 return IPR_RC_JOB_RETURN;
6635}
6636
6637/**
6638 * ipr_build_mode_sense - Builds a mode sense command
6639 * @ipr_cmd: ipr command struct
6640 * @res: resource entry struct
6641 * @parm: Byte 2 of mode sense command
6642 * @dma_addr: DMA address of mode sense buffer
6643 * @xfer_len: Size of DMA buffer
6644 *
6645 * Return value:
6646 * none
6647 **/
6648static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6649 __be32 res_handle,
a32c055f 6650 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 6651{
1da177e4
LT		 6652 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6653
6654 ioarcb->res_handle = res_handle;
6655 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6656 ioarcb->cmd_pkt.cdb[2] = parm;
6657 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6658 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6659
a32c055f 6660 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6661}
6662
dfed823e
BK		 6663/**
6664 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6665 * @ipr_cmd: ipr command struct
6666 *
6667 * This function handles the failure of an IOA bringup command.
6668 *
6669 * Return value:
6670 * IPR_RC_JOB_RETURN
6671 **/
6672static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6673{
6674 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6675 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 6676
6677 dev_err(&ioa_cfg->pdev->dev,
6678 "0x%02X failed with IOASC: 0x%08X\n",
6679 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6680
6681 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6682 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6683 return IPR_RC_JOB_RETURN;
6684}
6685
6686/**
6687 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6688 * @ipr_cmd: ipr command struct
6689 *
6690 * This function handles the failure of a Mode Sense to the IOAFP.
6691 * Some adapters do not handle all mode pages.
6692 *
6693 * Return value:
6694 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6695 **/
6696static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6697{
f72919ec 6698 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 6699 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 6700
6701 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 6702 ipr_cmd->job_step = ipr_set_supported_devs;
6703 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6704 struct ipr_resource_entry, queue);
dfed823e
BK		 6705 return IPR_RC_JOB_CONTINUE;
6706 }
6707
6708 return ipr_reset_cmd_failed(ipr_cmd);
6709}
6710
1da177e4
LT		 6711/**
6712 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6713 * @ipr_cmd: ipr command struct
6714 *
6715 * This function send a Page 28 mode sense to the IOA to
6716 * retrieve SCSI bus attributes.
6717 *
6718 * Return value:
6719 * IPR_RC_JOB_RETURN
6720 **/
6721static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6722{
6723 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6724
6725 ENTER;
6726 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6727 0x28, ioa_cfg->vpd_cbs_dma +
6728 offsetof(struct ipr_misc_cbs, mode_pages),
6729 sizeof(struct ipr_mode_pages));
6730
6731 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 6732 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 6733
6734 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6735
6736 LEAVE;
6737 return IPR_RC_JOB_RETURN;
6738}
6739
ac09c349
BK		 6740/**
6741 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6742 * @ipr_cmd: ipr command struct
6743 *
6744 * This function enables dual IOA RAID support if possible.
6745 *
6746 * Return value:
6747 * IPR_RC_JOB_RETURN
6748 **/
6749static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6750{
6751 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6752 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6753 struct ipr_mode_page24 *mode_page;
6754 int length;
6755
6756 ENTER;
6757 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6758 sizeof(struct ipr_mode_page24));
6759
6760 if (mode_page)
6761 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6762
6763 length = mode_pages->hdr.length + 1;
6764 mode_pages->hdr.length = 0;
6765
6766 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6767 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6768 length);
6769
6770 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6771 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6772
6773 LEAVE;
6774 return IPR_RC_JOB_RETURN;
6775}
6776
6777/**
6778 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6779 * @ipr_cmd: ipr command struct
6780 *
6781 * This function handles the failure of a Mode Sense to the IOAFP.
6782 * Some adapters do not handle all mode pages.
6783 *
6784 * Return value:
6785 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6786 **/
6787static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6788{
96d21f00 6789 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 6790
6791 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6792 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6793 return IPR_RC_JOB_CONTINUE;
6794 }
6795
6796 return ipr_reset_cmd_failed(ipr_cmd);
6797}
6798
6799/**
6800 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6801 * @ipr_cmd: ipr command struct
6802 *
6803 * This function send a mode sense to the IOA to retrieve
6804 * the IOA Advanced Function Control mode page.
6805 *
6806 * Return value:
6807 * IPR_RC_JOB_RETURN
6808 **/
6809static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6810{
6811 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6812
6813 ENTER;
6814 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6815 0x24, ioa_cfg->vpd_cbs_dma +
6816 offsetof(struct ipr_misc_cbs, mode_pages),
6817 sizeof(struct ipr_mode_pages));
6818
6819 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6820 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6821
6822 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6823
6824 LEAVE;
6825 return IPR_RC_JOB_RETURN;
6826}
6827
1da177e4
LT		 6828/**
6829 * ipr_init_res_table - Initialize the resource table
6830 * @ipr_cmd: ipr command struct
6831 *
6832 * This function looks through the existing resource table, comparing
6833 * it with the config table. This function will take care of old/new
6834 * devices and schedule adding/removing them from the mid-layer
6835 * as appropriate.
6836 *
6837 * Return value:
6838 * IPR_RC_JOB_CONTINUE
6839 **/
6840static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6841{
6842 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6843 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 6844 struct ipr_config_table_entry_wrapper cfgtew;
6845 int entries, found, flag, i;
1da177e4
LT		 6846 LIST_HEAD(old_res);
6847
6848 ENTER;
3e7ebdfa
WB		 6849 if (ioa_cfg->sis64)
6850 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6851 else
6852 flag = ioa_cfg->u.cfg_table->hdr.flags;
6853
6854 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 6855 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6856
6857 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6858 list_move_tail(&res->queue, &old_res);
6859
3e7ebdfa 6860 if (ioa_cfg->sis64)
438b0331 6861 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 6862 else
6863 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6864
6865 for (i = 0; i < entries; i++) {
6866 if (ioa_cfg->sis64)
6867 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6868 else
6869 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 6870 found = 0;
6871
6872 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 6873 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 6874 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6875 found = 1;
6876 break;
6877 }
6878 }
6879
6880 if (!found) {
6881 if (list_empty(&ioa_cfg->free_res_q)) {
6882 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6883 break;
6884 }
6885
6886 found = 1;
6887 res = list_entry(ioa_cfg->free_res_q.next,
6888 struct ipr_resource_entry, queue);
6889 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 6890 ipr_init_res_entry(res, &cfgtew);
1da177e4 6891 res->add_to_ml = 1;
56115598
WB		 6892 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6893 res->sdev->allow_restart = 1;
1da177e4
LT		 6894
6895 if (found)
3e7ebdfa 6896 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 6897 }
6898
6899 list_for_each_entry_safe(res, temp, &old_res, queue) {
6900 if (res->sdev) {
6901 res->del_from_ml = 1;
3e7ebdfa 6902 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 6903 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 6904 }
6905 }
6906
3e7ebdfa
WB		 6907 list_for_each_entry_safe(res, temp, &old_res, queue) {
6908 ipr_clear_res_target(res);
6909 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6910 }
6911
ac09c349
BK		 6912 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6913 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6914 else
6915 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 6916
6917 LEAVE;
6918 return IPR_RC_JOB_CONTINUE;
6919}
6920
6921/**
6922 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6923 * @ipr_cmd: ipr command struct
6924 *
6925 * This function sends a Query IOA Configuration command
6926 * to the adapter to retrieve the IOA configuration table.
6927 *
6928 * Return value:
6929 * IPR_RC_JOB_RETURN
6930 **/
6931static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6932{
6933 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6934 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 6935 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 6936 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 6937
6938 ENTER;
ac09c349
BK		 6939 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6940 ioa_cfg->dual_raid = 1;
1da177e4
LT		 6941 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6942 ucode_vpd->major_release, ucode_vpd->card_type,
6943 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6944 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6945 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6946
6947 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 6948 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 6949 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6950 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 6951
3e7ebdfa 6952 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 6953 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6954
6955 ipr_cmd->job_step = ipr_init_res_table;
6956
6957 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6958
6959 LEAVE;
6960 return IPR_RC_JOB_RETURN;
6961}
6962
6963/**
6964 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6965 * @ipr_cmd: ipr command struct
6966 *
6967 * This utility function sends an inquiry to the adapter.
6968 *
6969 * Return value:
6970 * none
6971 **/
6972static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 6973 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 6974{
6975 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6976
6977 ENTER;
6978 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6979 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6980
6981 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6982 ioarcb->cmd_pkt.cdb[1] = flags;
6983 ioarcb->cmd_pkt.cdb[2] = page;
6984 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6985
a32c055f 6986 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6987
6988 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6989 LEAVE;
6990}
6991
62275040
BK		 6992/**
6993 * ipr_inquiry_page_supported - Is the given inquiry page supported
6994 * @page0: inquiry page 0 buffer
6995 * @page: page code.
6996 *
6997 * This function determines if the specified inquiry page is supported.
6998 *
6999 * Return value:
7000 * 1 if page is supported / 0 if not
7001 **/
7002static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7003{
7004 int i;
7005
7006 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7007 if (page0->page[i] == page)
7008 return 1;
7009
7010 return 0;
7011}
7012
ac09c349
BK		 7013/**
7014 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7015 * @ipr_cmd: ipr command struct
7016 *
7017 * This function sends a Page 0xD0 inquiry to the adapter
7018 * to retrieve adapter capabilities.
7019 *
7020 * Return value:
7021 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7022 **/
7023static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7024{
7025 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7026 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7027 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7028
7029 ENTER;
7030 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7031 memset(cap, 0, sizeof(*cap));
7032
7033 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7034 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7035 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7036 sizeof(struct ipr_inquiry_cap));
7037 return IPR_RC_JOB_RETURN;
7038 }
7039
7040 LEAVE;
7041 return IPR_RC_JOB_CONTINUE;
7042}
7043
1da177e4
LT		 7044/**
7045 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7046 * @ipr_cmd: ipr command struct
7047 *
7048 * This function sends a Page 3 inquiry to the adapter
7049 * to retrieve software VPD information.
7050 *
7051 * Return value:
7052 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7053 **/
7054static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7055{
7056 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7057
7058 ENTER;
7059
ac09c349 7060 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7061
7062 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7063 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7064 sizeof(struct ipr_inquiry_page3));
7065
7066 LEAVE;
7067 return IPR_RC_JOB_RETURN;
7068}
7069
7070/**
7071 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7072 * @ipr_cmd: ipr command struct
7073 *
7074 * This function sends a Page 0 inquiry to the adapter
7075 * to retrieve supported inquiry pages.
7076 *
7077 * Return value:
7078 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7079 **/
7080static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7081{
7082 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7083 char type[5];
7084
7085 ENTER;
7086
7087 /* Grab the type out of the VPD and store it away */
7088 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7089 type[4] = '\0';
7090 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7091
62275040 7092 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7093
62275040
BK		 7094 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7095 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7096 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7097
7098 LEAVE;
7099 return IPR_RC_JOB_RETURN;
7100}
7101
7102/**
7103 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7104 * @ipr_cmd: ipr command struct
7105 *
7106 * This function sends a standard inquiry to the adapter.
7107 *
7108 * Return value:
7109 * IPR_RC_JOB_RETURN
7110 **/
7111static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7112{
7113 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7114
7115 ENTER;
62275040 7116 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7117
7118 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7119 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7120 sizeof(struct ipr_ioa_vpd));
7121
7122 LEAVE;
7123 return IPR_RC_JOB_RETURN;
7124}
7125
7126/**
214777ba 7127 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7128 * @ipr_cmd: ipr command struct
7129 *
7130 * This function send an Identify Host Request Response Queue
7131 * command to establish the HRRQ with the adapter.
7132 *
7133 * Return value:
7134 * IPR_RC_JOB_RETURN
7135 **/
214777ba 7136static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7137{
7138 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7139 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7140
7141 ENTER;
7142 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7143
7144 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7145 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7146
7147 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
214777ba
WB		 7148 if (ioa_cfg->sis64)
7149 ioarcb->cmd_pkt.cdb[1] = 0x1;
1da177e4 7150 ioarcb->cmd_pkt.cdb[2] =
214777ba 7151 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
1da177e4 7152 ioarcb->cmd_pkt.cdb[3] =
214777ba 7153 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
1da177e4 7154 ioarcb->cmd_pkt.cdb[4] =
214777ba 7155 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
1da177e4 7156 ioarcb->cmd_pkt.cdb[5] =
214777ba 7157 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
1da177e4
LT		 7158 ioarcb->cmd_pkt.cdb[7] =
7159 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7160 ioarcb->cmd_pkt.cdb[8] =
7161 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7162
214777ba
WB		 7163 if (ioa_cfg->sis64) {
7164 ioarcb->cmd_pkt.cdb[10] =
7165 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7166 ioarcb->cmd_pkt.cdb[11] =
7167 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7168 ioarcb->cmd_pkt.cdb[12] =
7169 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7170 ioarcb->cmd_pkt.cdb[13] =
7171 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7172 }
7173
1da177e4
LT		 7174 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7175
7176 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7177
7178 LEAVE;
7179 return IPR_RC_JOB_RETURN;
7180}
7181
7182/**
7183 * ipr_reset_timer_done - Adapter reset timer function
7184 * @ipr_cmd: ipr command struct
7185 *
7186 * Description: This function is used in adapter reset processing
7187 * for timing events. If the reset_cmd pointer in the IOA
7188 * config struct is not this adapter's we are doing nested
7189 * resets and fail_all_ops will take care of freeing the
7190 * command block.
7191 *
7192 * Return value:
7193 * none
7194 **/
7195static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7196{
7197 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7198 unsigned long lock_flags = 0;
7199
7200 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7201
7202 if (ioa_cfg->reset_cmd == ipr_cmd) {
7203 list_del(&ipr_cmd->queue);
7204 ipr_cmd->done(ipr_cmd);
7205 }
7206
7207 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7208}
7209
7210/**
7211 * ipr_reset_start_timer - Start a timer for adapter reset job
7212 * @ipr_cmd: ipr command struct
7213 * @timeout: timeout value
7214 *
7215 * Description: This function is used in adapter reset processing
7216 * for timing events. If the reset_cmd pointer in the IOA
7217 * config struct is not this adapter's we are doing nested
7218 * resets and fail_all_ops will take care of freeing the
7219 * command block.
7220 *
7221 * Return value:
7222 * none
7223 **/
7224static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7225 unsigned long timeout)
7226{
7227 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7228 ipr_cmd->done = ipr_reset_ioa_job;
7229
7230 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7231 ipr_cmd->timer.expires = jiffies + timeout;
7232 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7233 add_timer(&ipr_cmd->timer);
7234}
7235
7236/**
7237 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7238 * @ioa_cfg: ioa cfg struct
7239 *
7240 * Return value:
7241 * nothing
7242 **/
7243static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7244{
7245 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7246
7247 /* Initialize Host RRQ pointers */
7248 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7249 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7250 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7251 ioa_cfg->toggle_bit = 1;
7252
7253 /* Zero out config table */
3e7ebdfa 7254 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7255}
7256
214777ba
WB		 7257/**
7258 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7259 * @ipr_cmd: ipr command struct
7260 *
7261 * Return value:
7262 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7263 **/
7264static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7265{
7266 unsigned long stage, stage_time;
7267 u32 feedback;
7268 volatile u32 int_reg;
7269 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7270 u64 maskval = 0;
7271
7272 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7273 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7274 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7275
7276 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7277
7278 /* sanity check the stage_time value */
438b0331
WB		 7279 if (stage_time == 0)
7280 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7281 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7282 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7283 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7284 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7285
7286 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7287 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7288 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7289 stage_time = ioa_cfg->transop_timeout;
7290 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7291 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7292 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7293 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7294 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7295 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7296 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7297 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7298 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7299 return IPR_RC_JOB_CONTINUE;
7300 }
214777ba
WB		 7301 }
7302
7303 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7304 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7305 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7306 ipr_cmd->done = ipr_reset_ioa_job;
7307 add_timer(&ipr_cmd->timer);
7308 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7309
7310 return IPR_RC_JOB_RETURN;
7311}
7312
1da177e4
LT		 7313/**
7314 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7315 * @ipr_cmd: ipr command struct
7316 *
7317 * This function reinitializes some control blocks and
7318 * enables destructive diagnostics on the adapter.
7319 *
7320 * Return value:
7321 * IPR_RC_JOB_RETURN
7322 **/
7323static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7324{
7325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7326 volatile u32 int_reg;
7be96900 7327 volatile u64 maskval;
1da177e4
LT		 7328
7329 ENTER;
214777ba 7330 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7331 ipr_init_ioa_mem(ioa_cfg);
7332
7333 ioa_cfg->allow_interrupts = 1;
8701f185
WB		 7334 if (ioa_cfg->sis64) {
7335 /* Set the adapter to the correct endian mode. */
7336 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7337 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7338 }
7339
7be96900 7340 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7341
7342 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7343 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7344 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7345 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7346 return IPR_RC_JOB_CONTINUE;
7347 }
7348
7349 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7350 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7351
7be96900
WB		 7352 if (ioa_cfg->sis64) {
7353 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7354 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7355 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7356 } else
7357 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7358
1da177e4
LT		 7359 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7360
7361 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7362
214777ba
WB		 7363 if (ioa_cfg->sis64) {
7364 ipr_cmd->job_step = ipr_reset_next_stage;
7365 return IPR_RC_JOB_CONTINUE;
7366 }
7367
1da177e4 7368 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7369 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7370 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7371 ipr_cmd->done = ipr_reset_ioa_job;
7372 add_timer(&ipr_cmd->timer);
7373 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7374
7375 LEAVE;
7376 return IPR_RC_JOB_RETURN;
7377}
7378
7379/**
7380 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7381 * @ipr_cmd: ipr command struct
7382 *
7383 * This function is invoked when an adapter dump has run out
7384 * of processing time.
7385 *
7386 * Return value:
7387 * IPR_RC_JOB_CONTINUE
7388 **/
7389static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7390{
7391 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7392
7393 if (ioa_cfg->sdt_state == GET_DUMP)
7394 ioa_cfg->sdt_state = ABORT_DUMP;
7395
7396 ipr_cmd->job_step = ipr_reset_alert;
7397
7398 return IPR_RC_JOB_CONTINUE;
7399}
7400
7401/**
7402 * ipr_unit_check_no_data - Log a unit check/no data error log
7403 * @ioa_cfg: ioa config struct
7404 *
7405 * Logs an error indicating the adapter unit checked, but for some
7406 * reason, we were unable to fetch the unit check buffer.
7407 *
7408 * Return value:
7409 * nothing
7410 **/
7411static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7412{
7413 ioa_cfg->errors_logged++;
7414 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7415}
7416
7417/**
7418 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7419 * @ioa_cfg: ioa config struct
7420 *
7421 * Fetches the unit check buffer from the adapter by clocking the data
7422 * through the mailbox register.
7423 *
7424 * Return value:
7425 * nothing
7426 **/
7427static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7428{
7429 unsigned long mailbox;
7430 struct ipr_hostrcb *hostrcb;
7431 struct ipr_uc_sdt sdt;
7432 int rc, length;
65f56475 7433 u32 ioasc;
1da177e4
LT		 7434
7435 mailbox = readl(ioa_cfg->ioa_mailbox);
7436
dcbad00e 7437 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 7438 ipr_unit_check_no_data(ioa_cfg);
7439 return;
7440 }
7441
7442 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7443 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7444 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7445
dcbad00e
WB		 7446 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7447 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7448 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 7449 ipr_unit_check_no_data(ioa_cfg);
7450 return;
7451 }
7452
7453 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 7454 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7455 length = be32_to_cpu(sdt.entry[0].end_token);
7456 else
7457 length = (be32_to_cpu(sdt.entry[0].end_token) -
7458 be32_to_cpu(sdt.entry[0].start_token)) &
7459 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 7460
7461 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7462 struct ipr_hostrcb, queue);
7463 list_del(&hostrcb->queue);
7464 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7465
7466 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 7467 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 7468 (__be32 *)&hostrcb->hcam,
7469 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7470
65f56475 7471 if (!rc) {
1da177e4 7472 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 7473 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 7474 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7475 ioa_cfg->sdt_state == GET_DUMP)
7476 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7477 } else
1da177e4
LT		 7478 ipr_unit_check_no_data(ioa_cfg);
7479
7480 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7481}
7482
110def85
WB		 7483/**
7484 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7485 * @ipr_cmd: ipr command struct
7486 *
7487 * Description: This function will call to get the unit check buffer.
7488 *
7489 * Return value:
7490 * IPR_RC_JOB_RETURN
7491 **/
7492static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7493{
7494 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7495
7496 ENTER;
7497 ioa_cfg->ioa_unit_checked = 0;
7498 ipr_get_unit_check_buffer(ioa_cfg);
7499 ipr_cmd->job_step = ipr_reset_alert;
7500 ipr_reset_start_timer(ipr_cmd, 0);
7501
7502 LEAVE;
7503 return IPR_RC_JOB_RETURN;
7504}
7505
1da177e4
LT		 7506/**
7507 * ipr_reset_restore_cfg_space - Restore PCI config space.
7508 * @ipr_cmd: ipr command struct
7509 *
7510 * Description: This function restores the saved PCI config space of
7511 * the adapter, fails all outstanding ops back to the callers, and
7512 * fetches the dump/unit check if applicable to this reset.
7513 *
7514 * Return value:
7515 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7516 **/
7517static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7518{
7519 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8701f185 7520 volatile u32 int_reg;
1da177e4
LT		 7521
7522 ENTER;
99c965dd 7523 ioa_cfg->pdev->state_saved = true;
1d3c16a8 7524 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 7525
7526 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 7527 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 7528 return IPR_RC_JOB_CONTINUE;
7529 }
7530
7531 ipr_fail_all_ops(ioa_cfg);
7532
8701f185
WB		 7533 if (ioa_cfg->sis64) {
7534 /* Set the adapter to the correct endian mode. */
7535 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7536 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7537 }
7538
1da177e4 7539 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 7540 if (ioa_cfg->sis64) {
7541 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7542 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7543 return IPR_RC_JOB_RETURN;
7544 } else {
7545 ioa_cfg->ioa_unit_checked = 0;
7546 ipr_get_unit_check_buffer(ioa_cfg);
7547 ipr_cmd->job_step = ipr_reset_alert;
7548 ipr_reset_start_timer(ipr_cmd, 0);
7549 return IPR_RC_JOB_RETURN;
7550 }
1da177e4
LT		 7551 }
7552
7553 if (ioa_cfg->in_ioa_bringdown) {
7554 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7555 } else {
7556 ipr_cmd->job_step = ipr_reset_enable_ioa;
7557
7558 if (GET_DUMP == ioa_cfg->sdt_state) {
7559 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7560 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7561 schedule_work(&ioa_cfg->work_q);
7562 return IPR_RC_JOB_RETURN;
7563 }
7564 }
7565
438b0331 7566 LEAVE;
1da177e4
LT		 7567 return IPR_RC_JOB_CONTINUE;
7568}
7569
e619e1a7
BK		 7570/**
7571 * ipr_reset_bist_done - BIST has completed on the adapter.
7572 * @ipr_cmd: ipr command struct
7573 *
7574 * Description: Unblock config space and resume the reset process.
7575 *
7576 * Return value:
7577 * IPR_RC_JOB_CONTINUE
7578 **/
7579static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7580{
7581 ENTER;
7582 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7583 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7584 LEAVE;
7585 return IPR_RC_JOB_CONTINUE;
7586}
7587
1da177e4
LT		 7588/**
7589 * ipr_reset_start_bist - Run BIST on the adapter.
7590 * @ipr_cmd: ipr command struct
7591 *
7592 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7593 *
7594 * Return value:
7595 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7596 **/
7597static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7598{
7599 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 7600 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 7601
7602 ENTER;
b30197d2 7603 pci_block_user_cfg_access(ioa_cfg->pdev);
1da177e4 7604
cb237ef7
WB		 7605 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7606 writel(IPR_UPROCI_SIS64_START_BIST,
7607 ioa_cfg->regs.set_uproc_interrupt_reg32);
7608 else
7609 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7610
7611 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 7612 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 7613 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7614 rc = IPR_RC_JOB_RETURN;
cb237ef7
WB		 7615 } else {
7616 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7617 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7618 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7619 }
7620
7621 LEAVE;
7622 return rc;
7623}
7624
463fc696
BK		 7625/**
7626 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7627 * @ipr_cmd: ipr command struct
7628 *
7629 * Description: This clears PCI reset to the adapter and delays two seconds.
7630 *
7631 * Return value:
7632 * IPR_RC_JOB_RETURN
7633 **/
7634static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7635{
7636 ENTER;
7637 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7638 ipr_cmd->job_step = ipr_reset_bist_done;
7639 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7640 LEAVE;
7641 return IPR_RC_JOB_RETURN;
7642}
7643
7644/**
7645 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7646 * @ipr_cmd: ipr command struct
7647 *
7648 * Description: This asserts PCI reset to the adapter.
7649 *
7650 * Return value:
7651 * IPR_RC_JOB_RETURN
7652 **/
7653static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7654{
7655 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7656 struct pci_dev *pdev = ioa_cfg->pdev;
7657
7658 ENTER;
7659 pci_block_user_cfg_access(pdev);
7660 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7661 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7662 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7663 LEAVE;
7664 return IPR_RC_JOB_RETURN;
7665}
7666
1da177e4
LT		 7667/**
7668 * ipr_reset_allowed - Query whether or not IOA can be reset
7669 * @ioa_cfg: ioa config struct
7670 *
7671 * Return value:
7672 * 0 if reset not allowed / non-zero if reset is allowed
7673 **/
7674static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7675{
7676 volatile u32 temp_reg;
7677
7678 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7679 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7680}
7681
7682/**
7683 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7684 * @ipr_cmd: ipr command struct
7685 *
7686 * Description: This function waits for adapter permission to run BIST,
7687 * then runs BIST. If the adapter does not give permission after a
7688 * reasonable time, we will reset the adapter anyway. The impact of
7689 * resetting the adapter without warning the adapter is the risk of
7690 * losing the persistent error log on the adapter. If the adapter is
7691 * reset while it is writing to the flash on the adapter, the flash
7692 * segment will have bad ECC and be zeroed.
7693 *
7694 * Return value:
7695 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7696 **/
7697static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7698{
7699 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7700 int rc = IPR_RC_JOB_RETURN;
7701
7702 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7703 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7704 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7705 } else {
463fc696 7706 ipr_cmd->job_step = ioa_cfg->reset;
1da177e4
LT		 7707 rc = IPR_RC_JOB_CONTINUE;
7708 }
7709
7710 return rc;
7711}
7712
7713/**
8701f185 7714 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 7715 * @ipr_cmd: ipr command struct
7716 *
7717 * Description: This function alerts the adapter that it will be reset.
7718 * If memory space is not currently enabled, proceed directly
7719 * to running BIST on the adapter. The timer must always be started
7720 * so we guarantee we do not run BIST from ipr_isr.
7721 *
7722 * Return value:
7723 * IPR_RC_JOB_RETURN
7724 **/
7725static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7726{
7727 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7728 u16 cmd_reg;
7729 int rc;
7730
7731 ENTER;
7732 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7733
7734 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7735 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 7736 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 7737 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7738 } else {
463fc696 7739 ipr_cmd->job_step = ioa_cfg->reset;
1da177e4
LT		 7740 }
7741
7742 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7743 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7744
7745 LEAVE;
7746 return IPR_RC_JOB_RETURN;
7747}
7748
7749/**
7750 * ipr_reset_ucode_download_done - Microcode download completion
7751 * @ipr_cmd: ipr command struct
7752 *
7753 * Description: This function unmaps the microcode download buffer.
7754 *
7755 * Return value:
7756 * IPR_RC_JOB_CONTINUE
7757 **/
7758static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7759{
7760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7761 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7762
7763 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7764 sglist->num_sg, DMA_TO_DEVICE);
7765
7766 ipr_cmd->job_step = ipr_reset_alert;
7767 return IPR_RC_JOB_CONTINUE;
7768}
7769
7770/**
7771 * ipr_reset_ucode_download - Download microcode to the adapter
7772 * @ipr_cmd: ipr command struct
7773 *
7774 * Description: This function checks to see if it there is microcode
7775 * to download to the adapter. If there is, a download is performed.
7776 *
7777 * Return value:
7778 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7779 **/
7780static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7781{
7782 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7783 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7784
7785 ENTER;
7786 ipr_cmd->job_step = ipr_reset_alert;
7787
7788 if (!sglist)
7789 return IPR_RC_JOB_CONTINUE;
7790
7791 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7792 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7793 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7794 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7795 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7796 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7797 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7798
a32c055f
WB		 7799 if (ioa_cfg->sis64)
7800 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7801 else
7802 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 7803 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7804
7805 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7806 IPR_WRITE_BUFFER_TIMEOUT);
7807
7808 LEAVE;
7809 return IPR_RC_JOB_RETURN;
7810}
7811
7812/**
7813 * ipr_reset_shutdown_ioa - Shutdown the adapter
7814 * @ipr_cmd: ipr command struct
7815 *
7816 * Description: This function issues an adapter shutdown of the
7817 * specified type to the specified adapter as part of the
7818 * adapter reset job.
7819 *
7820 * Return value:
7821 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7822 **/
7823static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7824{
7825 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7826 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7827 unsigned long timeout;
7828 int rc = IPR_RC_JOB_CONTINUE;
7829
7830 ENTER;
7831 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7832 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7833 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7834 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7835 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7836
ac09c349
BK		 7837 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7838 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7839 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7840 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 7841 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7842 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 7843 else
ac09c349 7844 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 7845
7846 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7847
7848 rc = IPR_RC_JOB_RETURN;
7849 ipr_cmd->job_step = ipr_reset_ucode_download;
7850 } else
7851 ipr_cmd->job_step = ipr_reset_alert;
7852
7853 LEAVE;
7854 return rc;
7855}
7856
7857/**
7858 * ipr_reset_ioa_job - Adapter reset job
7859 * @ipr_cmd: ipr command struct
7860 *
7861 * Description: This function is the job router for the adapter reset job.
7862 *
7863 * Return value:
7864 * none
7865 **/
7866static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7867{
7868 u32 rc, ioasc;
1da177e4
LT		 7869 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7870
7871 do {
96d21f00 7872 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 7873
7874 if (ioa_cfg->reset_cmd != ipr_cmd) {
7875 /*
7876 * We are doing nested adapter resets and this is
7877 * not the current reset job.
7878 */
7879 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7880 return;
7881 }
7882
7883 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 7884 rc = ipr_cmd->job_step_failed(ipr_cmd);
7885 if (rc == IPR_RC_JOB_RETURN)
7886 return;
1da177e4
LT		 7887 }
7888
7889 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 7890 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4
LT		 7891 rc = ipr_cmd->job_step(ipr_cmd);
7892 } while(rc == IPR_RC_JOB_CONTINUE);
7893}
7894
7895/**
7896 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7897 * @ioa_cfg: ioa config struct
7898 * @job_step: first job step of reset job
7899 * @shutdown_type: shutdown type
7900 *
7901 * Description: This function will initiate the reset of the given adapter
7902 * starting at the selected job step.
7903 * If the caller needs to wait on the completion of the reset,
7904 * the caller must sleep on the reset_wait_q.
7905 *
7906 * Return value:
7907 * none
7908 **/
7909static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7910 int (*job_step) (struct ipr_cmnd *),
7911 enum ipr_shutdown_type shutdown_type)
7912{
7913 struct ipr_cmnd *ipr_cmd;
7914
7915 ioa_cfg->in_reset_reload = 1;
7916 ioa_cfg->allow_cmds = 0;
7917 scsi_block_requests(ioa_cfg->host);
7918
7919 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7920 ioa_cfg->reset_cmd = ipr_cmd;
7921 ipr_cmd->job_step = job_step;
7922 ipr_cmd->u.shutdown_type = shutdown_type;
7923
7924 ipr_reset_ioa_job(ipr_cmd);
7925}
7926
7927/**
7928 * ipr_initiate_ioa_reset - Initiate an adapter reset
7929 * @ioa_cfg: ioa config struct
7930 * @shutdown_type: shutdown type
7931 *
7932 * Description: This function will initiate the reset of the given adapter.
7933 * If the caller needs to wait on the completion of the reset,
7934 * the caller must sleep on the reset_wait_q.
7935 *
7936 * Return value:
7937 * none
7938 **/
7939static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7940 enum ipr_shutdown_type shutdown_type)
7941{
7942 if (ioa_cfg->ioa_is_dead)
7943 return;
7944
7945 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7946 ioa_cfg->sdt_state = ABORT_DUMP;
7947
7948 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7949 dev_err(&ioa_cfg->pdev->dev,
7950 "IOA taken offline - error recovery failed\n");
7951
7952 ioa_cfg->reset_retries = 0;
7953 ioa_cfg->ioa_is_dead = 1;
7954
7955 if (ioa_cfg->in_ioa_bringdown) {
7956 ioa_cfg->reset_cmd = NULL;
7957 ioa_cfg->in_reset_reload = 0;
7958 ipr_fail_all_ops(ioa_cfg);
7959 wake_up_all(&ioa_cfg->reset_wait_q);
7960
7961 spin_unlock_irq(ioa_cfg->host->host_lock);
7962 scsi_unblock_requests(ioa_cfg->host);
7963 spin_lock_irq(ioa_cfg->host->host_lock);
7964 return;
7965 } else {
7966 ioa_cfg->in_ioa_bringdown = 1;
7967 shutdown_type = IPR_SHUTDOWN_NONE;
7968 }
7969 }
7970
7971 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7972 shutdown_type);
7973}
7974
f8a88b19
LV		 7975/**
7976 * ipr_reset_freeze - Hold off all I/O activity
7977 * @ipr_cmd: ipr command struct
7978 *
7979 * Description: If the PCI slot is frozen, hold off all I/O
7980 * activity; then, as soon as the slot is available again,
7981 * initiate an adapter reset.
7982 */
7983static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7984{
7985 /* Disallow new interrupts, avoid loop */
7986 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7987 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7988 ipr_cmd->done = ipr_reset_ioa_job;
7989 return IPR_RC_JOB_RETURN;
7990}
7991
7992/**
7993 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7994 * @pdev: PCI device struct
7995 *
7996 * Description: This routine is called to tell us that the PCI bus
7997 * is down. Can't do anything here, except put the device driver
7998 * into a holding pattern, waiting for the PCI bus to come back.
7999 */
8000static void ipr_pci_frozen(struct pci_dev *pdev)
8001{
8002 unsigned long flags = 0;
8003 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8004
8005 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8006 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8007 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8008}
8009
8010/**
8011 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8012 * @pdev: PCI device struct
8013 *
8014 * Description: This routine is called by the pci error recovery
8015 * code after the PCI slot has been reset, just before we
8016 * should resume normal operations.
8017 */
8018static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8019{
8020 unsigned long flags = 0;
8021 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8022
8023 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
463fc696
BK		 8024 if (ioa_cfg->needs_warm_reset)
8025 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8026 else
8027 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8028 IPR_SHUTDOWN_NONE);
f8a88b19
LV		 8029 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8030 return PCI_ERS_RESULT_RECOVERED;
8031}
8032
8033/**
8034 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8035 * @pdev: PCI device struct
8036 *
8037 * Description: This routine is called when the PCI bus has
8038 * permanently failed.
8039 */
8040static void ipr_pci_perm_failure(struct pci_dev *pdev)
8041{
8042 unsigned long flags = 0;
8043 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8044
8045 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8046 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8047 ioa_cfg->sdt_state = ABORT_DUMP;
8048 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8049 ioa_cfg->in_ioa_bringdown = 1;
6ff63896 8050 ioa_cfg->allow_cmds = 0;
f8a88b19
LV		 8051 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8052 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8053}
8054
8055/**
8056 * ipr_pci_error_detected - Called when a PCI error is detected.
8057 * @pdev: PCI device struct
8058 * @state: PCI channel state
8059 *
8060 * Description: Called when a PCI error is detected.
8061 *
8062 * Return value:
8063 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8064 */
8065static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8066 pci_channel_state_t state)
8067{
8068 switch (state) {
8069 case pci_channel_io_frozen:
8070 ipr_pci_frozen(pdev);
8071 return PCI_ERS_RESULT_NEED_RESET;
8072 case pci_channel_io_perm_failure:
8073 ipr_pci_perm_failure(pdev);
8074 return PCI_ERS_RESULT_DISCONNECT;
8075 break;
8076 default:
8077 break;
8078 }
8079 return PCI_ERS_RESULT_NEED_RESET;
8080}
8081
1da177e4
LT		 8082/**
8083 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8084 * @ioa_cfg: ioa cfg struct
8085 *
8086 * Description: This is the second phase of adapter intialization
8087 * This function takes care of initilizing the adapter to the point
8088 * where it can accept new commands.
8089
8090 * Return value:
b1c11812 8091 * 0 on success / -EIO on failure
1da177e4
LT		 8092 **/
8093static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8094{
8095 int rc = 0;
8096 unsigned long host_lock_flags = 0;
8097
8098 ENTER;
8099 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8100 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
ce155cce
BK		 8101 if (ioa_cfg->needs_hard_reset) {
8102 ioa_cfg->needs_hard_reset = 0;
8103 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8104 } else
8105 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8106 IPR_SHUTDOWN_NONE);
1da177e4
LT		 8107
8108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8109 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8110 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8111
8112 if (ioa_cfg->ioa_is_dead) {
8113 rc = -EIO;
8114 } else if (ipr_invalid_adapter(ioa_cfg)) {
8115 if (!ipr_testmode)
8116 rc = -EIO;
8117
8118 dev_err(&ioa_cfg->pdev->dev,
8119 "Adapter not supported in this hardware configuration.\n");
8120 }
8121
8122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8123
8124 LEAVE;
8125 return rc;
8126}
8127
8128/**
8129 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8130 * @ioa_cfg: ioa config struct
8131 *
8132 * Return value:
8133 * none
8134 **/
8135static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8136{
8137 int i;
8138
8139 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8140 if (ioa_cfg->ipr_cmnd_list[i])
8141 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8142 ioa_cfg->ipr_cmnd_list[i],
8143 ioa_cfg->ipr_cmnd_list_dma[i]);
8144
8145 ioa_cfg->ipr_cmnd_list[i] = NULL;
8146 }
8147
8148 if (ioa_cfg->ipr_cmd_pool)
8149 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8150
8151 ioa_cfg->ipr_cmd_pool = NULL;
8152}
8153
8154/**
8155 * ipr_free_mem - Frees memory allocated for an adapter
8156 * @ioa_cfg: ioa cfg struct
8157 *
8158 * Return value:
8159 * nothing
8160 **/
8161static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8162{
8163 int i;
8164
8165 kfree(ioa_cfg->res_entries);
8166 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8167 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8168 ipr_free_cmd_blks(ioa_cfg);
8169 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8170 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
3e7ebdfa
WB		 8171 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8172 ioa_cfg->u.cfg_table,
1da177e4
LT		 8173 ioa_cfg->cfg_table_dma);
8174
8175 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8176 pci_free_consistent(ioa_cfg->pdev,
8177 sizeof(struct ipr_hostrcb),
8178 ioa_cfg->hostrcb[i],
8179 ioa_cfg->hostrcb_dma[i]);
8180 }
8181
8182 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8183 kfree(ioa_cfg->trace);
8184}
8185
8186/**
8187 * ipr_free_all_resources - Free all allocated resources for an adapter.
8188 * @ipr_cmd: ipr command struct
8189 *
8190 * This function frees all allocated resources for the
8191 * specified adapter.
8192 *
8193 * Return value:
8194 * none
8195 **/
8196static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8197{
8198 struct pci_dev *pdev = ioa_cfg->pdev;
8199
8200 ENTER;
8201 free_irq(pdev->irq, ioa_cfg);
5a9ef25b 8202 pci_disable_msi(pdev);
1da177e4
LT		 8203 iounmap(ioa_cfg->hdw_dma_regs);
8204 pci_release_regions(pdev);
8205 ipr_free_mem(ioa_cfg);
8206 scsi_host_put(ioa_cfg->host);
8207 pci_disable_device(pdev);
8208 LEAVE;
8209}
8210
8211/**
8212 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8213 * @ioa_cfg: ioa config struct
8214 *
8215 * Return value:
8216 * 0 on success / -ENOMEM on allocation failure
8217 **/
8218static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8219{
8220 struct ipr_cmnd *ipr_cmd;
8221 struct ipr_ioarcb *ioarcb;
8222 dma_addr_t dma_addr;
8223 int i;
8224
8225 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
a32c055f 8226 sizeof(struct ipr_cmnd), 16, 0);
1da177e4
LT		 8227
8228 if (!ioa_cfg->ipr_cmd_pool)
8229 return -ENOMEM;
8230
8231 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
e94b1766 8232 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 8233
8234 if (!ipr_cmd) {
8235 ipr_free_cmd_blks(ioa_cfg);
8236 return -ENOMEM;
8237 }
8238
8239 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8240 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8241 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8242
8243 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 8244 ipr_cmd->dma_addr = dma_addr;
8245 if (ioa_cfg->sis64)
8246 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8247 else
8248 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8249
1da177e4 8250 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 8251 if (ioa_cfg->sis64) {
8252 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8253 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8254 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 8255 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 8256 } else {
8257 ioarcb->write_ioadl_addr =
8258 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8259 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8260 ioarcb->ioasa_host_pci_addr =
96d21f00 8261 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 8262 }
1da177e4
LT		 8263 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8264 ipr_cmd->cmd_index = i;
8265 ipr_cmd->ioa_cfg = ioa_cfg;
8266 ipr_cmd->sense_buffer_dma = dma_addr +
8267 offsetof(struct ipr_cmnd, sense_buffer);
8268
8269 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8270 }
8271
8272 return 0;
8273}
8274
8275/**
8276 * ipr_alloc_mem - Allocate memory for an adapter
8277 * @ioa_cfg: ioa config struct
8278 *
8279 * Return value:
8280 * 0 on success / non-zero for error
8281 **/
8282static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8283{
8284 struct pci_dev *pdev = ioa_cfg->pdev;
8285 int i, rc = -ENOMEM;
8286
8287 ENTER;
0bc42e35 8288 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 8289 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 8290
8291 if (!ioa_cfg->res_entries)
8292 goto out;
8293
3e7ebdfa
WB		 8294 if (ioa_cfg->sis64) {
8295 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8296 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8297 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8298 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8299 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8300 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8301 }
8302
8303 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 8304 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 8305 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8306 }
1da177e4
LT		 8307
8308 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8309 sizeof(struct ipr_misc_cbs),
8310 &ioa_cfg->vpd_cbs_dma);
8311
8312 if (!ioa_cfg->vpd_cbs)
8313 goto out_free_res_entries;
8314
8315 if (ipr_alloc_cmd_blks(ioa_cfg))
8316 goto out_free_vpd_cbs;
8317
8318 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8319 sizeof(u32) * IPR_NUM_CMD_BLKS,
8320 &ioa_cfg->host_rrq_dma);
8321
8322 if (!ioa_cfg->host_rrq)
8323 goto out_ipr_free_cmd_blocks;
8324
3e7ebdfa
WB		 8325 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8326 ioa_cfg->cfg_table_size,
8327 &ioa_cfg->cfg_table_dma);
1da177e4 8328
3e7ebdfa 8329 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 8330 goto out_free_host_rrq;
8331
8332 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8333 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8334 sizeof(struct ipr_hostrcb),
8335 &ioa_cfg->hostrcb_dma[i]);
8336
8337 if (!ioa_cfg->hostrcb[i])
8338 goto out_free_hostrcb_dma;
8339
8340 ioa_cfg->hostrcb[i]->hostrcb_dma =
8341 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 8342 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 8343 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8344 }
8345
0bc42e35 8346 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 8347 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8348
8349 if (!ioa_cfg->trace)
8350 goto out_free_hostrcb_dma;
8351
1da177e4
LT		 8352 rc = 0;
8353out:
8354 LEAVE;
8355 return rc;
8356
8357out_free_hostrcb_dma:
8358 while (i-- > 0) {
8359 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8360 ioa_cfg->hostrcb[i],
8361 ioa_cfg->hostrcb_dma[i]);
8362 }
3e7ebdfa
WB		 8363 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8364 ioa_cfg->u.cfg_table,
8365 ioa_cfg->cfg_table_dma);
1da177e4
LT		 8366out_free_host_rrq:
8367 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8368 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8369out_ipr_free_cmd_blocks:
8370 ipr_free_cmd_blks(ioa_cfg);
8371out_free_vpd_cbs:
8372 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8373 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8374out_free_res_entries:
8375 kfree(ioa_cfg->res_entries);
8376 goto out;
8377}
8378
8379/**
8380 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8381 * @ioa_cfg: ioa config struct
8382 *
8383 * Return value:
8384 * none
8385 **/
8386static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8387{
8388 int i;
8389
8390 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8391 ioa_cfg->bus_attr[i].bus = i;
8392 ioa_cfg->bus_attr[i].qas_enabled = 0;
8393 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8394 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8395 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8396 else
8397 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8398 }
8399}
8400
8401/**
8402 * ipr_init_ioa_cfg - Initialize IOA config struct
8403 * @ioa_cfg: ioa config struct
8404 * @host: scsi host struct
8405 * @pdev: PCI dev struct
8406 *
8407 * Return value:
8408 * none
8409 **/
8410static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8411 struct Scsi_Host *host, struct pci_dev *pdev)
8412{
8413 const struct ipr_interrupt_offsets *p;
8414 struct ipr_interrupts *t;
8415 void __iomem *base;
8416
8417 ioa_cfg->host = host;
8418 ioa_cfg->pdev = pdev;
8419 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 8420 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 8421 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8422 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8423 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8424 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8425 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8426 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8427 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8428 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8429
8430 INIT_LIST_HEAD(&ioa_cfg->free_q);
8431 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8432 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8433 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8434 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8435 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 8436 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 8437 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 8438 init_waitqueue_head(&ioa_cfg->msi_wait_q);
1da177e4
LT		 8439 ioa_cfg->sdt_state = INACTIVE;
8440
8441 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 8442 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 8443
3e7ebdfa
WB		 8444 if (ioa_cfg->sis64) {
8445 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8446 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8447 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8448 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8449 } else {
8450 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8451 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8452 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8453 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8454 }
1da177e4
LT		 8455 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8456 host->unique_id = host->host_no;
8457 host->max_cmd_len = IPR_MAX_CDB_LEN;
8458 pci_set_drvdata(pdev, ioa_cfg);
8459
8460 p = &ioa_cfg->chip_cfg->regs;
8461 t = &ioa_cfg->regs;
8462 base = ioa_cfg->hdw_dma_regs;
8463
8464 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8465 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
214777ba 8466 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
1da177e4 8467 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
214777ba 8468 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
1da177e4 8469 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
214777ba 8470 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
1da177e4 8471 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
214777ba 8472 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
1da177e4
LT		 8473 t->ioarrin_reg = base + p->ioarrin_reg;
8474 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
214777ba 8475 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
1da177e4 8476 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
214777ba 8477 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
1da177e4 8478 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
214777ba 8479 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
dcbad00e
WB		 8480
8481 if (ioa_cfg->sis64) {
214777ba 8482 t->init_feedback_reg = base + p->init_feedback_reg;
dcbad00e
WB		 8483 t->dump_addr_reg = base + p->dump_addr_reg;
8484 t->dump_data_reg = base + p->dump_data_reg;
8701f185 8485 t->endian_swap_reg = base + p->endian_swap_reg;
dcbad00e 8486 }
1da177e4
LT		 8487}
8488
8489/**
1be7bd82 8490 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 8491 * @dev_id: PCI device id struct
8492 *
8493 * Return value:
1be7bd82 8494 * ptr to chip information on success / NULL on failure
1da177e4 8495 **/
1be7bd82
WB		 8496static const struct ipr_chip_t * __devinit
8497ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 8498{
8499 int i;
8500
1da177e4
LT		 8501 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8502 if (ipr_chip[i].vendor == dev_id->vendor &&
8503 ipr_chip[i].device == dev_id->device)
1be7bd82 8504 return &ipr_chip[i];
1da177e4
LT		 8505 return NULL;
8506}
8507
95fecd90
WB		 8508/**
8509 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8510 * @pdev: PCI device struct
8511 *
8512 * Description: Simply set the msi_received flag to 1 indicating that
8513 * Message Signaled Interrupts are supported.
8514 *
8515 * Return value:
8516 * 0 on success / non-zero on failure
8517 **/
8518static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8519{
8520 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8521 unsigned long lock_flags = 0;
8522 irqreturn_t rc = IRQ_HANDLED;
8523
8524 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8525
8526 ioa_cfg->msi_received = 1;
8527 wake_up(&ioa_cfg->msi_wait_q);
8528
8529 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8530 return rc;
8531}
8532
8533/**
8534 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8535 * @pdev: PCI device struct
8536 *
8537 * Description: The return value from pci_enable_msi() can not always be
8538 * trusted. This routine sets up and initiates a test interrupt to determine
8539 * if the interrupt is received via the ipr_test_intr() service routine.
8540 * If the tests fails, the driver will fall back to LSI.
8541 *
8542 * Return value:
8543 * 0 on success / non-zero on failure
8544 **/
8545static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8546 struct pci_dev *pdev)
8547{
8548 int rc;
8549 volatile u32 int_reg;
8550 unsigned long lock_flags = 0;
8551
8552 ENTER;
8553
8554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8555 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8556 ioa_cfg->msi_received = 0;
8557 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 8558 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 8559 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8560 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8561
8562 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8563 if (rc) {
8564 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8565 return rc;
8566 } else if (ipr_debug)
8567 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8568
214777ba 8569 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 8570 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8571 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8572 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8573
8574 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8575 if (!ioa_cfg->msi_received) {
8576 /* MSI test failed */
8577 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8578 rc = -EOPNOTSUPP;
8579 } else if (ipr_debug)
8580 dev_info(&pdev->dev, "MSI test succeeded.\n");
8581
8582 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8583
8584 free_irq(pdev->irq, ioa_cfg);
8585
8586 LEAVE;
8587
8588 return rc;
8589}
8590
1da177e4
LT		 8591/**
8592 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8593 * @pdev: PCI device struct
8594 * @dev_id: PCI device id struct
8595 *
8596 * Return value:
8597 * 0 on success / non-zero on failure
8598 **/
8599static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8600 const struct pci_device_id *dev_id)
8601{
8602 struct ipr_ioa_cfg *ioa_cfg;
8603 struct Scsi_Host *host;
8604 unsigned long ipr_regs_pci;
8605 void __iomem *ipr_regs;
a2a65a3e 8606 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 8607 volatile u32 mask, uproc, interrupts;
1da177e4
LT		 8608
8609 ENTER;
8610
8611 if ((rc = pci_enable_device(pdev))) {
8612 dev_err(&pdev->dev, "Cannot enable adapter\n");
8613 goto out;
8614 }
8615
8616 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8617
8618 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8619
8620 if (!host) {
8621 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8622 rc = -ENOMEM;
8623 goto out_disable;
8624 }
8625
8626 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8627 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
35a39691
BK		 8628 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8629 sata_port_info.flags, &ipr_sata_ops);
1da177e4 8630
1be7bd82 8631 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 8632
1be7bd82 8633 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 8634 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8635 dev_id->vendor, dev_id->device);
8636 goto out_scsi_host_put;
8637 }
8638
a32c055f
WB		 8639 /* set SIS 32 or SIS 64 */
8640 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82
WB		 8641 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8642
5469cb5b
BK		 8643 if (ipr_transop_timeout)
8644 ioa_cfg->transop_timeout = ipr_transop_timeout;
8645 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8646 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8647 else
8648 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8649
44c10138 8650 ioa_cfg->revid = pdev->revision;
463fc696 8651
1da177e4
LT		 8652 ipr_regs_pci = pci_resource_start(pdev, 0);
8653
8654 rc = pci_request_regions(pdev, IPR_NAME);
8655 if (rc < 0) {
8656 dev_err(&pdev->dev,
8657 "Couldn't register memory range of registers\n");
8658 goto out_scsi_host_put;
8659 }
8660
25729a7f 8661 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 8662
8663 if (!ipr_regs) {
8664 dev_err(&pdev->dev,
8665 "Couldn't map memory range of registers\n");
8666 rc = -ENOMEM;
8667 goto out_release_regions;
8668 }
8669
8670 ioa_cfg->hdw_dma_regs = ipr_regs;
8671 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8672 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8673
8674 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8675
8676 pci_set_master(pdev);
8677
a32c055f
WB		 8678 if (ioa_cfg->sis64) {
8679 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8680 if (rc < 0) {
8681 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8682 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8683 }
8684
8685 } else
8686 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8687
1da177e4
LT		 8688 if (rc < 0) {
8689 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8690 goto cleanup_nomem;
8691 }
8692
8693 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8694 ioa_cfg->chip_cfg->cache_line_size);
8695
8696 if (rc != PCIBIOS_SUCCESSFUL) {
8697 dev_err(&pdev->dev, "Write of cache line size failed\n");
8698 rc = -EIO;
8699 goto cleanup_nomem;
8700 }
8701
95fecd90 8702 /* Enable MSI style interrupts if they are supported. */
1be7bd82 8703 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
95fecd90
WB		 8704 rc = ipr_test_msi(ioa_cfg, pdev);
8705 if (rc == -EOPNOTSUPP)
8706 pci_disable_msi(pdev);
8707 else if (rc)
8708 goto out_msi_disable;
8709 else
8710 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8711 } else if (ipr_debug)
8712 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8713
1da177e4
LT		 8714 /* Save away PCI config space for use following IOA reset */
8715 rc = pci_save_state(pdev);
8716
8717 if (rc != PCIBIOS_SUCCESSFUL) {
8718 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8719 rc = -EIO;
8720 goto cleanup_nomem;
8721 }
8722
8723 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8724 goto cleanup_nomem;
8725
8726 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8727 goto cleanup_nomem;
8728
3e7ebdfa
WB		 8729 if (ioa_cfg->sis64)
8730 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8731 + ((sizeof(struct ipr_config_table_entry64)
8732 * ioa_cfg->max_devs_supported)));
8733 else
8734 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8735 + ((sizeof(struct ipr_config_table_entry)
8736 * ioa_cfg->max_devs_supported)));
8737
1da177e4
LT		 8738 rc = ipr_alloc_mem(ioa_cfg);
8739 if (rc < 0) {
8740 dev_err(&pdev->dev,
8741 "Couldn't allocate enough memory for device driver!\n");
8742 goto cleanup_nomem;
8743 }
8744
ce155cce
BK		 8745 /*
8746 * If HRRQ updated interrupt is not masked, or reset alert is set,
8747 * the card is in an unknown state and needs a hard reset
8748 */
214777ba
WB		 8749 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8750 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8751 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 8752 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8753 ioa_cfg->needs_hard_reset = 1;
473b1e8e
BK		 8754 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8755 ioa_cfg->needs_hard_reset = 1;
8756 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8757 ioa_cfg->ioa_unit_checked = 1;
ce155cce 8758
1da177e4 8759 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
95fecd90
WB		 8760 rc = request_irq(pdev->irq, ipr_isr,
8761 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8762 IPR_NAME, ioa_cfg);
1da177e4
LT		 8763
8764 if (rc) {
8765 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8766 pdev->irq, rc);
8767 goto cleanup_nolog;
8768 }
8769
463fc696
BK		 8770 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8771 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8772 ioa_cfg->needs_warm_reset = 1;
8773 ioa_cfg->reset = ipr_reset_slot_reset;
8774 } else
8775 ioa_cfg->reset = ipr_reset_start_bist;
8776
1da177e4
LT		 8777 spin_lock(&ipr_driver_lock);
8778 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8779 spin_unlock(&ipr_driver_lock);
8780
8781 LEAVE;
8782out:
8783 return rc;
8784
8785cleanup_nolog:
8786 ipr_free_mem(ioa_cfg);
8787cleanup_nomem:
8788 iounmap(ipr_regs);
95fecd90
WB		 8789out_msi_disable:
8790 pci_disable_msi(pdev);
1da177e4
LT		 8791out_release_regions:
8792 pci_release_regions(pdev);
8793out_scsi_host_put:
8794 scsi_host_put(host);
8795out_disable:
8796 pci_disable_device(pdev);
8797 goto out;
8798}
8799
8800/**
8801 * ipr_scan_vsets - Scans for VSET devices
8802 * @ioa_cfg: ioa config struct
8803 *
8804 * Description: Since the VSET resources do not follow SAM in that we can have
8805 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8806 *
8807 * Return value:
8808 * none
8809 **/
8810static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8811{
8812 int target, lun;
8813
8814 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8815 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8816 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8817}
8818
8819/**
8820 * ipr_initiate_ioa_bringdown - Bring down an adapter
8821 * @ioa_cfg: ioa config struct
8822 * @shutdown_type: shutdown type
8823 *
8824 * Description: This function will initiate bringing down the adapter.
8825 * This consists of issuing an IOA shutdown to the adapter
8826 * to flush the cache, and running BIST.
8827 * If the caller needs to wait on the completion of the reset,
8828 * the caller must sleep on the reset_wait_q.
8829 *
8830 * Return value:
8831 * none
8832 **/
8833static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8834 enum ipr_shutdown_type shutdown_type)
8835{
8836 ENTER;
8837 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8838 ioa_cfg->sdt_state = ABORT_DUMP;
8839 ioa_cfg->reset_retries = 0;
8840 ioa_cfg->in_ioa_bringdown = 1;
8841 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8842 LEAVE;
8843}
8844
8845/**
8846 * __ipr_remove - Remove a single adapter
8847 * @pdev: pci device struct
8848 *
8849 * Adapter hot plug remove entry point.
8850 *
8851 * Return value:
8852 * none
8853 **/
8854static void __ipr_remove(struct pci_dev *pdev)
8855{
8856 unsigned long host_lock_flags = 0;
8857 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8858 ENTER;
8859
8860 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
970ea294
BK		 8861 while(ioa_cfg->in_reset_reload) {
8862 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8863 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8864 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8865 }
8866
1da177e4
LT		 8867 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8868
8869 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8870 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
a684b8da 8871 flush_work_sync(&ioa_cfg->work_q);
1da177e4
LT		 8872 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8873
8874 spin_lock(&ipr_driver_lock);
8875 list_del(&ioa_cfg->queue);
8876 spin_unlock(&ipr_driver_lock);
8877
8878 if (ioa_cfg->sdt_state == ABORT_DUMP)
8879 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8880 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8881
8882 ipr_free_all_resources(ioa_cfg);
8883
8884 LEAVE;
8885}
8886
8887/**
8888 * ipr_remove - IOA hot plug remove entry point
8889 * @pdev: pci device struct
8890 *
8891 * Adapter hot plug remove entry point.
8892 *
8893 * Return value:
8894 * none
8895 **/
f381642d 8896static void __devexit ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 8897{
8898 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8899
8900 ENTER;
8901
ee959b00 8902 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 8903 &ipr_trace_attr);
ee959b00 8904 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 8905 &ipr_dump_attr);
8906 scsi_remove_host(ioa_cfg->host);
8907
8908 __ipr_remove(pdev);
8909
8910 LEAVE;
8911}
8912
8913/**
8914 * ipr_probe - Adapter hot plug add entry point
8915 *
8916 * Return value:
8917 * 0 on success / non-zero on failure
8918 **/
8919static int __devinit ipr_probe(struct pci_dev *pdev,
8920 const struct pci_device_id *dev_id)
8921{
8922 struct ipr_ioa_cfg *ioa_cfg;
8923 int rc;
8924
8925 rc = ipr_probe_ioa(pdev, dev_id);
8926
8927 if (rc)
8928 return rc;
8929
8930 ioa_cfg = pci_get_drvdata(pdev);
8931 rc = ipr_probe_ioa_part2(ioa_cfg);
8932
8933 if (rc) {
8934 __ipr_remove(pdev);
8935 return rc;
8936 }
8937
8938 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8939
8940 if (rc) {
8941 __ipr_remove(pdev);
8942 return rc;
8943 }
8944
ee959b00 8945 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 8946 &ipr_trace_attr);
8947
8948 if (rc) {
8949 scsi_remove_host(ioa_cfg->host);
8950 __ipr_remove(pdev);
8951 return rc;
8952 }
8953
ee959b00 8954 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 8955 &ipr_dump_attr);
8956
8957 if (rc) {
ee959b00 8958 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 8959 &ipr_trace_attr);
8960 scsi_remove_host(ioa_cfg->host);
8961 __ipr_remove(pdev);
8962 return rc;
8963 }
8964
8965 scsi_scan_host(ioa_cfg->host);
8966 ipr_scan_vsets(ioa_cfg);
8967 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8968 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 8969 ioa_cfg->host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 8970 schedule_work(&ioa_cfg->work_q);
8971 return 0;
8972}
8973
8974/**
8975 * ipr_shutdown - Shutdown handler.
d18c3db5 8976 * @pdev: pci device struct
1da177e4
LT		 8977 *
8978 * This function is invoked upon system shutdown/reboot. It will issue
8979 * an adapter shutdown to the adapter to flush the write cache.
8980 *
8981 * Return value:
8982 * none
8983 **/
d18c3db5 8984static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 8985{
d18c3db5 8986 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4
LT		 8987 unsigned long lock_flags = 0;
8988
8989 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
970ea294
BK		 8990 while(ioa_cfg->in_reset_reload) {
8991 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8992 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8993 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8994 }
8995
1da177e4
LT		 8996 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8997 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8998 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8999}
9000
9001static struct pci_device_id ipr_pci_table[] __devinitdata = {
9002 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9003 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 9004 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9005 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 9006 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9007 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 9008 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9009 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 9010 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9011 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 9012 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9013 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 9014 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 9015 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 9016 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 9017 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9018 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9019 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 9020 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9021 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 9022 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9023 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9024 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 9025 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9026 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 9027 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 9028 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 9029 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 9030 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9031 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 9032 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 9033 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9034 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 9035 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 9036 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9037 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 9038 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9039 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 9040 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9041 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 9042 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 9043 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 9044 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 9045 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 9046 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 9047 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 9048 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 9049 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9050 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9051 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 9052 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 9053 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9054 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 9055 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9056 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9057 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9058 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9059 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9060 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
32622bde
WB		 9061 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9062 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
d7b4627f
WB		 9063 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9064 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9065 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9066 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9067 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9068 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9069 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9070 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
9071 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9072 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
1da177e4
LT		 9073 { }
9074};
9075MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9076
f8a88b19
LV		 9077static struct pci_error_handlers ipr_err_handler = {
9078 .error_detected = ipr_pci_error_detected,
9079 .slot_reset = ipr_pci_slot_reset,
9080};
9081
1da177e4
LT		 9082static struct pci_driver ipr_driver = {
9083 .name = IPR_NAME,
9084 .id_table = ipr_pci_table,
9085 .probe = ipr_probe,
f381642d 9086 .remove = __devexit_p(ipr_remove),
d18c3db5 9087 .shutdown = ipr_shutdown,
f8a88b19 9088 .err_handler = &ipr_err_handler,
1da177e4
LT		 9089};
9090
f72919ec
WB		 9091/**
9092 * ipr_halt_done - Shutdown prepare completion
9093 *
9094 * Return value:
9095 * none
9096 **/
9097static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9098{
9099 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9100
9101 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9102}
9103
9104/**
9105 * ipr_halt - Issue shutdown prepare to all adapters
9106 *
9107 * Return value:
9108 * NOTIFY_OK on success / NOTIFY_DONE on failure
9109 **/
9110static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9111{
9112 struct ipr_cmnd *ipr_cmd;
9113 struct ipr_ioa_cfg *ioa_cfg;
9114 unsigned long flags = 0;
9115
9116 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9117 return NOTIFY_DONE;
9118
9119 spin_lock(&ipr_driver_lock);
9120
9121 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9122 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9123 if (!ioa_cfg->allow_cmds) {
9124 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9125 continue;
9126 }
9127
9128 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9129 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9130 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9131 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9132 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9133
9134 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9136 }
9137 spin_unlock(&ipr_driver_lock);
9138
9139 return NOTIFY_OK;
9140}
9141
9142static struct notifier_block ipr_notifier = {
9143 ipr_halt, NULL, 0
9144};
9145
1da177e4
LT		 9146/**
9147 * ipr_init - Module entry point
9148 *
9149 * Return value:
9150 * 0 on success / negative value on failure
9151 **/
9152static int __init ipr_init(void)
9153{
9154 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9155 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9156
f72919ec 9157 register_reboot_notifier(&ipr_notifier);
dcbccbde 9158 return pci_register_driver(&ipr_driver);
1da177e4
LT		 9159}
9160
9161/**
9162 * ipr_exit - Module unload
9163 *
9164 * Module unload entry point.
9165 *
9166 * Return value:
9167 * none
9168 **/
9169static void __exit ipr_exit(void)
9170{
f72919ec 9171 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 9172 pci_unregister_driver(&ipr_driver);
9173}
9174
9175module_init(ipr_init);
9176module_exit(ipr_exit);
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