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UBUNTU: Ubuntu-4.13.0-45.50
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
cb05cbb3 101static unsigned int ipr_number_of_msix = 16;
4fdd7c7a 102static unsigned int ipr_fast_reboot;
1da177e4
LT		 103static DEFINE_SPINLOCK(ipr_driver_lock);
104
105/* This table describes the differences between DMA controller chips */
106static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 107 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4 108 .mailbox = 0x0042C,
89aad428 109 .max_cmds = 100,
1da177e4 110 .cache_line_size = 0x20,
7dd21308 111 .clear_isr = 1,
b53d124a 112 .iopoll_weight = 0,
1da177e4
LT		 113 {
114 .set_interrupt_mask_reg = 0x0022C,
115 .clr_interrupt_mask_reg = 0x00230,
214777ba 116 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 117 .sense_interrupt_mask_reg = 0x0022C,
214777ba 118 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 119 .clr_interrupt_reg = 0x00228,
214777ba 120 .clr_interrupt_reg32 = 0x00228,
1da177e4 121 .sense_interrupt_reg = 0x00224,
214777ba 122 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 123 .ioarrin_reg = 0x00404,
124 .sense_uproc_interrupt_reg = 0x00214,
214777ba 125 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 126 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 127 .set_uproc_interrupt_reg32 = 0x00214,
128 .clr_uproc_interrupt_reg = 0x00218,
129 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 130 }
131 },
132 { /* Snipe and Scamp */
133 .mailbox = 0x0052C,
89aad428 134 .max_cmds = 100,
1da177e4 135 .cache_line_size = 0x20,
7dd21308 136 .clear_isr = 1,
b53d124a 137 .iopoll_weight = 0,
1da177e4
LT		 138 {
139 .set_interrupt_mask_reg = 0x00288,
140 .clr_interrupt_mask_reg = 0x0028C,
214777ba 141 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 142 .sense_interrupt_mask_reg = 0x00288,
214777ba 143 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 144 .clr_interrupt_reg = 0x00284,
214777ba 145 .clr_interrupt_reg32 = 0x00284,
1da177e4 146 .sense_interrupt_reg = 0x00280,
214777ba 147 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 148 .ioarrin_reg = 0x00504,
149 .sense_uproc_interrupt_reg = 0x00290,
214777ba 150 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 151 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 152 .set_uproc_interrupt_reg32 = 0x00290,
153 .clr_uproc_interrupt_reg = 0x00294,
154 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 155 }
156 },
a74c1639 157 { /* CRoC */
110def85 158 .mailbox = 0x00044,
89aad428 159 .max_cmds = 1000,
a74c1639 160 .cache_line_size = 0x20,
7dd21308 161 .clear_isr = 0,
b53d124a 162 .iopoll_weight = 64,
a74c1639
WB		 163 {
164 .set_interrupt_mask_reg = 0x00010,
165 .clr_interrupt_mask_reg = 0x00018,
214777ba 166 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 167 .sense_interrupt_mask_reg = 0x00010,
214777ba 168 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 169 .clr_interrupt_reg = 0x00008,
214777ba 170 .clr_interrupt_reg32 = 0x0000C,
a74c1639 171 .sense_interrupt_reg = 0x00000,
214777ba 172 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 173 .ioarrin_reg = 0x00070,
174 .sense_uproc_interrupt_reg = 0x00020,
214777ba 175 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 176 .set_uproc_interrupt_reg = 0x00020,
214777ba 177 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 178 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 179 .clr_uproc_interrupt_reg32 = 0x0002C,
180 .init_feedback_reg = 0x0005C,
dcbad00e 181 .dump_addr_reg = 0x00064,
8701f185
WB		 182 .dump_data_reg = 0x00068,
183 .endian_swap_reg = 0x00084
a74c1639
WB		 184 }
185 },
1da177e4
LT		 186};
187
188static const struct ipr_chip_t ipr_chip[] = {
a299ee62
CH		 189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, true, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
198 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 199};
200
203fa3fe 201static int ipr_max_bus_speeds[] = {
1da177e4
LT		 202 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
203};
204
205MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
206MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
207module_param_named(max_speed, ipr_max_speed, uint, 0);
208MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
209module_param_named(log_level, ipr_log_level, uint, 0);
210MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
211module_param_named(testmode, ipr_testmode, int, 0);
212MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 213module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 214MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
215module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
216MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 217module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 218MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 219module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
220MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 221module_param_named(max_devs, ipr_max_devs, int, 0);
222MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
223 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 224module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
cb05cbb3 225MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:16)");
4fdd7c7a
BK		 226module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
227MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
1da177e4
LT		 228MODULE_LICENSE("GPL");
229MODULE_VERSION(IPR_DRIVER_VERSION);
230
1da177e4
LT		 231/* A constant array of IOASCs/URCs/Error Messages */
232static const
233struct ipr_error_table_t ipr_error_table[] = {
933916f3 234 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 235 "8155: An unknown error was received"},
236 {0x00330000, 0, 0,
237 "Soft underlength error"},
238 {0x005A0000, 0, 0,
239 "Command to be cancelled not found"},
240 {0x00808000, 0, 0,
241 "Qualified success"},
933916f3 242 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 243 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 244 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 245 "4101: Soft device bus fabric error"},
5aa3a333
WB		 246 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
247 "FFFC: Logical block guard error recovered by the device"},
248 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
249 "FFFC: Logical block reference tag error recovered by the device"},
250 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
251 "4171: Recovered scatter list tag / sequence number error"},
252 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
254 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
255 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
256 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
257 "FFFD: Recovered logical block reference tag error detected by the IOA"},
258 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
259 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 260 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 261 "FFF9: Device sector reassign successful"},
933916f3 262 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 263 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 264 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 265 "7001: IOA sector reassignment successful"},
933916f3 266 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 267 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 268 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 269 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 270 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 271 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 272 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 273 "FFF6: Device hardware error recovered by the IOA"},
933916f3 274 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 275 "FFF6: Device hardware error recovered by the device"},
933916f3 276 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 277 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 278 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 279 "FFFA: Undefined device response recovered by the IOA"},
933916f3 280 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 281 "FFF6: Device bus error, message or command phase"},
933916f3 282 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 283 "FFFE: Task Management Function failed"},
933916f3 284 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 285 "FFF6: Failure prediction threshold exceeded"},
933916f3 286 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 287 "8009: Impending cache battery pack failure"},
ed7bd661 288 {0x02040100, 0, 0,
289 "Logical Unit in process of becoming ready"},
290 {0x02040200, 0, 0,
291 "Initializing command required"},
1da177e4
LT		 292 {0x02040400, 0, 0,
293 "34FF: Disk device format in progress"},
ed7bd661 294 {0x02040C00, 0, 0,
295 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 296 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
297 "9070: IOA requested reset"},
1da177e4
LT		 298 {0x023F0000, 0, 0,
299 "Synchronization required"},
ed7bd661 300 {0x02408500, 0, 0,
301 "IOA microcode download required"},
302 {0x02408600, 0, 0,
303 "Device bus connection is prohibited by host"},
1da177e4
LT		 304 {0x024E0000, 0, 0,
305 "No ready, IOA shutdown"},
306 {0x025A0000, 0, 0,
307 "Not ready, IOA has been shutdown"},
933916f3 308 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 309 "3020: Storage subsystem configuration error"},
310 {0x03110B00, 0, 0,
311 "FFF5: Medium error, data unreadable, recommend reassign"},
312 {0x03110C00, 0, 0,
313 "7000: Medium error, data unreadable, do not reassign"},
933916f3 314 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 315 "FFF3: Disk media format bad"},
933916f3 316 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 317 "3002: Addressed device failed to respond to selection"},
933916f3 318 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 319 "3100: Device bus error"},
933916f3 320 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 321 "3109: IOA timed out a device command"},
322 {0x04088000, 0, 0,
323 "3120: SCSI bus is not operational"},
933916f3 324 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 325 "4100: Hard device bus fabric error"},
5aa3a333
WB		 326 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
327 "310C: Logical block guard error detected by the device"},
328 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
329 "310C: Logical block reference tag error detected by the device"},
330 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
331 "4170: Scatter list tag / sequence number error"},
332 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
333 "8150: Logical block CRC error on IOA to Host transfer"},
334 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
335 "4170: Logical block sequence number error on IOA to Host transfer"},
336 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
337 "310D: Logical block reference tag error detected by the IOA"},
338 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
339 "310D: Logical block guard error detected by the IOA"},
933916f3 340 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 341 "9000: IOA reserved area data check"},
933916f3 342 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 343 "9001: IOA reserved area invalid data pattern"},
933916f3 344 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 345 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 346 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
347 "Hardware Error, IOA metadata access error"},
933916f3 348 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 349 "102E: Out of alternate sectors for disk storage"},
933916f3 350 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 351 "FFF4: Data transfer underlength error"},
933916f3 352 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 353 "FFF4: Data transfer overlength error"},
933916f3 354 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 355 "3400: Logical unit failure"},
933916f3 356 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 357 "FFF4: Device microcode is corrupt"},
933916f3 358 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 359 "8150: PCI bus error"},
360 {0x04430000, 1, 0,
361 "Unsupported device bus message received"},
933916f3 362 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 363 "FFF4: Disk device problem"},
933916f3 364 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 365 "8150: Permanent IOA failure"},
933916f3 366 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 367 "3010: Disk device returned wrong response to IOA"},
933916f3 368 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 369 "8151: IOA microcode error"},
370 {0x04448500, 0, 0,
371 "Device bus status error"},
933916f3 372 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 373 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 374 {0x04448700, 0, 0,
375 "ATA device status error"},
1da177e4
LT		 376 {0x04490000, 0, 0,
377 "Message reject received from the device"},
933916f3 378 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 379 "8008: A permanent cache battery pack failure occurred"},
933916f3 380 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 381 "9090: Disk unit has been modified after the last known status"},
933916f3 382 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 383 "9081: IOA detected device error"},
933916f3 384 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 385 "9082: IOA detected device error"},
933916f3 386 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 387 "3110: Device bus error, message or command phase"},
933916f3 388 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 389 "3110: SAS Command / Task Management Function failed"},
933916f3 390 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 391 "9091: Incorrect hardware configuration change has been detected"},
933916f3 392 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 393 "9073: Invalid multi-adapter configuration"},
933916f3 394 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 395 "4010: Incorrect connection between cascaded expanders"},
933916f3 396 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 397 "4020: Connections exceed IOA design limits"},
933916f3 398 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 399 "4030: Incorrect multipath connection"},
933916f3 400 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 401 "4110: Unsupported enclosure function"},
ed7bd661 402 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
403 "4120: SAS cable VPD cannot be read"},
933916f3 404 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 405 "FFF4: Command to logical unit failed"},
406 {0x05240000, 1, 0,
407 "Illegal request, invalid request type or request packet"},
408 {0x05250000, 0, 0,
409 "Illegal request, invalid resource handle"},
b0df54bb
BK		 410 {0x05258000, 0, 0,
411 "Illegal request, commands not allowed to this device"},
412 {0x05258100, 0, 0,
413 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 414 {0x05258200, 0, 0,
415 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 416 {0x05260000, 0, 0,
417 "Illegal request, invalid field in parameter list"},
418 {0x05260100, 0, 0,
419 "Illegal request, parameter not supported"},
420 {0x05260200, 0, 0,
421 "Illegal request, parameter value invalid"},
422 {0x052C0000, 0, 0,
423 "Illegal request, command sequence error"},
b0df54bb
BK		 424 {0x052C8000, 1, 0,
425 "Illegal request, dual adapter support not enabled"},
ed7bd661 426 {0x052C8100, 1, 0,
427 "Illegal request, another cable connector was physically disabled"},
428 {0x054E8000, 1, 0,
429 "Illegal request, inconsistent group id/group count"},
933916f3 430 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 431 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 432 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 433 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 434 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
435 "4080: IOA exceeded maximum operating temperature"},
436 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
437 "4085: Service required"},
933916f3 438 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 439 "3140: Device bus not ready to ready transition"},
933916f3 440 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 441 "FFFB: SCSI bus was reset"},
442 {0x06290500, 0, 0,
443 "FFFE: SCSI bus transition to single ended"},
444 {0x06290600, 0, 0,
445 "FFFE: SCSI bus transition to LVD"},
933916f3 446 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 447 "FFFB: SCSI bus was reset by another initiator"},
933916f3 448 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 449 "3029: A device replacement has occurred"},
ed7bd661 450 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
451 "4102: Device bus fabric performance degradation"},
933916f3 452 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 453 "9051: IOA cache data exists for a missing or failed device"},
933916f3 454 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 455 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 456 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 457 "9025: Disk unit is not supported at its physical location"},
933916f3 458 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 459 "3020: IOA detected a SCSI bus configuration error"},
933916f3 460 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 461 "3150: SCSI bus configuration error"},
933916f3 462 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 463 "9074: Asymmetric advanced function disk configuration"},
933916f3 464 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 465 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 466 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 467 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 468 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 469 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 470 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 471 "9076: Configuration error, missing remote IOA"},
933916f3 472 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 473 "4050: Enclosure does not support a required multipath function"},
ed7bd661 474 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
475 "4121: Configuration error, required cable is missing"},
476 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
477 "4122: Cable is not plugged into the correct location on remote IOA"},
478 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
479 "4123: Configuration error, invalid cable vital product data"},
480 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
481 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 482 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
483 "4070: Logically bad block written on device"},
933916f3 484 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 485 "9041: Array protection temporarily suspended"},
933916f3 486 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 487 "9042: Corrupt array parity detected on specified device"},
933916f3 488 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 489 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 490 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 491 "9071: Link operational transition"},
933916f3 492 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 493 "9072: Link not operational transition"},
933916f3 494 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 495 "9032: Array exposed but still protected"},
7b3871fd 496 {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL,
e435340c 497 "70DD: Device forced failed by disrupt device command"},
933916f3 498 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 499 "4061: Multipath redundancy level got better"},
933916f3 500 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 501 "4060: Multipath redundancy level got worse"},
7b3871fd 502 {0x06808100, 0, IPR_DEBUG_LOG_LEVEL,
f8ee25d7 503 "9083: Device raw mode enabled"},
7b3871fd 504 {0x06808200, 0, IPR_DEBUG_LOG_LEVEL,
f8ee25d7 505 "9084: Device raw mode disabled"},
1da177e4
LT		 506 {0x07270000, 0, 0,
507 "Failure due to other device"},
933916f3 508 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 509 "9008: IOA does not support functions expected by devices"},
933916f3 510 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 511 "9010: Cache data associated with attached devices cannot be found"},
933916f3 512 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 513 "9011: Cache data belongs to devices other than those attached"},
933916f3 514 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 515 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 516 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 517 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 518 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 519 "9022: Exposed array is missing a required device"},
933916f3 520 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 521 "9023: Array member(s) not at required physical locations"},
933916f3 522 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 523 "9024: Array not functional due to present hardware configuration"},
933916f3 524 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 525 "9026: Array not functional due to present hardware configuration"},
933916f3 526 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 527 "9027: Array is missing a device and parity is out of sync"},
933916f3 528 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 529 "9028: Maximum number of arrays already exist"},
933916f3 530 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 531 "9050: Required cache data cannot be located for a disk unit"},
933916f3 532 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 533 "9052: Cache data exists for a device that has been modified"},
933916f3 534 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 535 "9054: IOA resources not available due to previous problems"},
933916f3 536 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 537 "9092: Disk unit requires initialization before use"},
933916f3 538 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 539 "9029: Incorrect hardware configuration change has been detected"},
933916f3 540 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 541 "9060: One or more disk pairs are missing from an array"},
933916f3 542 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 543 "9061: One or more disks are missing from an array"},
933916f3 544 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 545 "9062: One or more disks are missing from an array"},
933916f3 546 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 547 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 548 {0x07279A00, 0, 0,
549 "Data protect, other volume set problem"},
1da177e4
LT		 550 {0x0B260000, 0, 0,
551 "Aborted command, invalid descriptor"},
ed7bd661 552 {0x0B3F9000, 0, 0,
553 "Target operating conditions have changed, dual adapter takeover"},
554 {0x0B530200, 0, 0,
555 "Aborted command, medium removal prevented"},
1da177e4 556 {0x0B5A0000, 0, 0,
ed7bd661 557 "Command terminated by host"},
558 {0x0B5B8000, 0, 0,
559 "Aborted command, command terminated by host"}
1da177e4
LT		 560};
561
562static const struct ipr_ses_table_entry ipr_ses_table[] = {
563 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
565 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
566 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
567 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
568 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
569 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
571 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
573 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
574 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
575 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
576};
577
578/*
579 * Function Prototypes
580 */
581static int ipr_reset_alert(struct ipr_cmnd *);
582static void ipr_process_ccn(struct ipr_cmnd *);
583static void ipr_process_error(struct ipr_cmnd *);
584static void ipr_reset_ioa_job(struct ipr_cmnd *);
585static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
586 enum ipr_shutdown_type);
587
588#ifdef CONFIG_SCSI_IPR_TRACE
589/**
590 * ipr_trc_hook - Add a trace entry to the driver trace
591 * @ipr_cmd: ipr command struct
592 * @type: trace type
593 * @add_data: additional data
594 *
595 * Return value:
596 * none
597 **/
598static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
599 u8 type, u32 add_data)
600{
601 struct ipr_trace_entry *trace_entry;
602 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
bb7c5433 603 unsigned int trace_index;
1da177e4 604
bb7c5433
BK		 605 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
606 trace_entry = &ioa_cfg->trace[trace_index];
1da177e4
LT		 607 trace_entry->time = jiffies;
608 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
609 trace_entry->type = type;
a32c055f
WB		 610 if (ipr_cmd->ioa_cfg->sis64)
611 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
612 else
613 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 614 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 615 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
616 trace_entry->u.add_data = add_data;
56d6aa33 617 wmb();
1da177e4
LT		 618}
619#else
203fa3fe 620#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 621#endif
622
172cd6e1
BK		 623/**
624 * ipr_lock_and_done - Acquire lock and complete command
625 * @ipr_cmd: ipr command struct
626 *
627 * Return value:
628 * none
629 **/
630static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
631{
632 unsigned long lock_flags;
633 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
634
635 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
636 ipr_cmd->done(ipr_cmd);
637 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
638}
639
1da177e4
LT		 640/**
641 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
642 * @ipr_cmd: ipr command struct
643 *
644 * Return value:
645 * none
646 **/
647static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
648{
649 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 650 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
651 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 652 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 653 int hrrq_id;
1da177e4 654
05a6538a 655 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 656 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 657 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 658 ioarcb->data_transfer_length = 0;
1da177e4 659 ioarcb->read_data_transfer_length = 0;
a32c055f 660 ioarcb->ioadl_len = 0;
1da177e4 661 ioarcb->read_ioadl_len = 0;
a32c055f 662
96d21f00 663 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 664 ioarcb->u.sis64_addr_data.data_ioadl_addr =
665 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 666 ioasa64->u.gata.status = 0;
667 } else {
a32c055f
WB		 668 ioarcb->write_ioadl_addr =
669 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
670 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 671 ioasa->u.gata.status = 0;
a32c055f
WB		 672 }
673
96d21f00
WB		 674 ioasa->hdr.ioasc = 0;
675 ioasa->hdr.residual_data_len = 0;
1da177e4 676 ipr_cmd->scsi_cmd = NULL;
35a39691 677 ipr_cmd->qc = NULL;
1da177e4
LT		 678 ipr_cmd->sense_buffer[0] = 0;
679 ipr_cmd->dma_use_sg = 0;
680}
681
682/**
683 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
684 * @ipr_cmd: ipr command struct
685 *
686 * Return value:
687 * none
688 **/
172cd6e1
BK		 689static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
690 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 691{
692 ipr_reinit_ipr_cmnd(ipr_cmd);
693 ipr_cmd->u.scratch = 0;
694 ipr_cmd->sibling = NULL;
6cdb0817 695 ipr_cmd->eh_comp = NULL;
172cd6e1 696 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 697 init_timer(&ipr_cmd->timer);
698}
699
700/**
00bfef2c 701 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 702 * @ioa_cfg: ioa config struct
703 *
704 * Return value:
705 * pointer to ipr command struct
706 **/
707static
05a6538a 708struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 709{
05a6538a 710 struct ipr_cmnd *ipr_cmd = NULL;
711
712 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
713 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
714 struct ipr_cmnd, queue);
715 list_del(&ipr_cmd->queue);
716 }
1da177e4 717
1da177e4
LT		 718
719 return ipr_cmd;
720}
721
00bfef2c
BK		 722/**
723 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
724 * @ioa_cfg: ioa config struct
725 *
726 * Return value:
727 * pointer to ipr command struct
728 **/
729static
730struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
731{
05a6538a 732 struct ipr_cmnd *ipr_cmd =
733 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 734 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 735 return ipr_cmd;
736}
737
1da177e4
LT		 738/**
739 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
740 * @ioa_cfg: ioa config struct
741 * @clr_ints: interrupts to clear
742 *
743 * This function masks all interrupts on the adapter, then clears the
744 * interrupts specified in the mask
745 *
746 * Return value:
747 * none
748 **/
749static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
750 u32 clr_ints)
751{
752 volatile u32 int_reg;
56d6aa33 753 int i;
1da177e4
LT		 754
755 /* Stop new interrupts */
56d6aa33 756 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
757 spin_lock(&ioa_cfg->hrrq[i]._lock);
758 ioa_cfg->hrrq[i].allow_interrupts = 0;
759 spin_unlock(&ioa_cfg->hrrq[i]._lock);
760 }
761 wmb();
1da177e4
LT		 762
763 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 764 if (ioa_cfg->sis64)
765 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
766 else
767 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 768
769 /* Clear any pending interrupts */
214777ba
WB		 770 if (ioa_cfg->sis64)
771 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
772 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 773 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
774}
775
776/**
777 * ipr_save_pcix_cmd_reg - Save PCI-X command register
778 * @ioa_cfg: ioa config struct
779 *
780 * Return value:
781 * 0 on success / -EIO on failure
782 **/
783static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
784{
785 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
786
7dce0e1c
BK		 787 if (pcix_cmd_reg == 0)
788 return 0;
1da177e4
LT		 789
790 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
791 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
792 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
793 return -EIO;
794 }
795
796 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
797 return 0;
798}
799
800/**
801 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
802 * @ioa_cfg: ioa config struct
803 *
804 * Return value:
805 * 0 on success / -EIO on failure
806 **/
807static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
808{
809 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
810
811 if (pcix_cmd_reg) {
812 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
813 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
814 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
815 return -EIO;
816 }
1da177e4
LT		 817 }
818
819 return 0;
820}
821
35a39691 822/**
f646f325 823 * __ipr_sata_eh_done - done function for aborted SATA commands
35a39691
BK		 824 * @ipr_cmd: ipr command struct
825 *
826 * This function is invoked for ops generated to SATA
827 * devices which are being aborted.
828 *
829 * Return value:
830 * none
831 **/
f646f325 832static void __ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
35a39691 833{
35a39691
BK		 834 struct ata_queued_cmd *qc = ipr_cmd->qc;
835 struct ipr_sata_port *sata_port = qc->ap->private_data;
836
837 qc->err_mask |= AC_ERR_OTHER;
838 sata_port->ioasa.status |= ATA_BUSY;
35a39691 839 ata_qc_complete(qc);
66a0d59c
BK		 840 if (ipr_cmd->eh_comp)
841 complete(ipr_cmd->eh_comp);
842 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 843}
844
1da177e4 845/**
f646f325
BK		 846 * ipr_sata_eh_done - done function for aborted SATA commands
847 * @ipr_cmd: ipr command struct
848 *
849 * This function is invoked for ops generated to SATA
850 * devices which are being aborted.
851 *
852 * Return value:
853 * none
854 **/
855static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
856{
857 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
858 unsigned long hrrq_flags;
859
860 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
861 __ipr_sata_eh_done(ipr_cmd);
862 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
863}
864
865/**
866 * __ipr_scsi_eh_done - mid-layer done function for aborted ops
1da177e4
LT		 867 * @ipr_cmd: ipr command struct
868 *
869 * This function is invoked by the interrupt handler for
870 * ops generated by the SCSI mid-layer which are being aborted.
871 *
872 * Return value:
873 * none
874 **/
f646f325 875static void __ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
1da177e4 876{
1da177e4
LT		 877 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
878
879 scsi_cmd->result |= (DID_ERROR << 16);
880
63015bc9 881 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 882 scsi_cmd->scsi_done(scsi_cmd);
6cdb0817
BK		 883 if (ipr_cmd->eh_comp)
884 complete(ipr_cmd->eh_comp);
05a6538a 885 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 886}
887
f646f325
BK		 888/**
889 * ipr_scsi_eh_done - mid-layer done function for aborted ops
890 * @ipr_cmd: ipr command struct
891 *
892 * This function is invoked by the interrupt handler for
893 * ops generated by the SCSI mid-layer which are being aborted.
894 *
895 * Return value:
896 * none
897 **/
898static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
899{
900 unsigned long hrrq_flags;
901 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
902
903 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
904 __ipr_scsi_eh_done(ipr_cmd);
905 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
906}
907
1da177e4
LT		 908/**
909 * ipr_fail_all_ops - Fails all outstanding ops.
910 * @ioa_cfg: ioa config struct
911 *
912 * This function fails all outstanding ops.
913 *
914 * Return value:
915 * none
916 **/
917static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
918{
919 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 920 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 921
922 ENTER;
05a6538a 923 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 924 spin_lock(&hrrq->_lock);
05a6538a 925 list_for_each_entry_safe(ipr_cmd,
926 temp, &hrrq->hrrq_pending_q, queue) {
927 list_del(&ipr_cmd->queue);
1da177e4 928
05a6538a 929 ipr_cmd->s.ioasa.hdr.ioasc =
930 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
931 ipr_cmd->s.ioasa.hdr.ilid =
932 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 933
05a6538a 934 if (ipr_cmd->scsi_cmd)
f646f325 935 ipr_cmd->done = __ipr_scsi_eh_done;
05a6538a 936 else if (ipr_cmd->qc)
f646f325 937 ipr_cmd->done = __ipr_sata_eh_done;
1da177e4 938
05a6538a 939 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
940 IPR_IOASC_IOA_WAS_RESET);
941 del_timer(&ipr_cmd->timer);
942 ipr_cmd->done(ipr_cmd);
943 }
56d6aa33 944 spin_unlock(&hrrq->_lock);
1da177e4 945 }
1da177e4
LT		 946 LEAVE;
947}
948
a32c055f
WB		 949/**
950 * ipr_send_command - Send driver initiated requests.
951 * @ipr_cmd: ipr command struct
952 *
953 * This function sends a command to the adapter using the correct write call.
954 * In the case of sis64, calculate the ioarcb size required. Then or in the
955 * appropriate bits.
956 *
957 * Return value:
958 * none
959 **/
960static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
961{
962 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
963 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
964
965 if (ioa_cfg->sis64) {
966 /* The default size is 256 bytes */
967 send_dma_addr |= 0x1;
968
969 /* If the number of ioadls * size of ioadl > 128 bytes,
970 then use a 512 byte ioarcb */
971 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
972 send_dma_addr |= 0x4;
973 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
974 } else
975 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
976}
977
1da177e4
LT		 978/**
979 * ipr_do_req - Send driver initiated requests.
980 * @ipr_cmd: ipr command struct
981 * @done: done function
982 * @timeout_func: timeout function
983 * @timeout: timeout value
984 *
985 * This function sends the specified command to the adapter with the
986 * timeout given. The done function is invoked on command completion.
987 *
988 * Return value:
989 * none
990 **/
991static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
992 void (*done) (struct ipr_cmnd *),
993 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
994{
05a6538a 995 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 996
997 ipr_cmd->done = done;
998
999 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
1000 ipr_cmd->timer.expires = jiffies + timeout;
1001 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
1002
1003 add_timer(&ipr_cmd->timer);
1004
1005 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
1006
a32c055f 1007 ipr_send_command(ipr_cmd);
1da177e4
LT		 1008}
1009
1010/**
1011 * ipr_internal_cmd_done - Op done function for an internally generated op.
1012 * @ipr_cmd: ipr command struct
1013 *
1014 * This function is the op done function for an internally generated,
1015 * blocking op. It simply wakes the sleeping thread.
1016 *
1017 * Return value:
1018 * none
1019 **/
1020static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
1021{
1022 if (ipr_cmd->sibling)
1023 ipr_cmd->sibling = NULL;
1024 else
1025 complete(&ipr_cmd->completion);
1026}
1027
a32c055f
WB		 1028/**
1029 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
1030 * @ipr_cmd: ipr command struct
1031 * @dma_addr: dma address
1032 * @len: transfer length
1033 * @flags: ioadl flag value
1034 *
1035 * This function initializes an ioadl in the case where there is only a single
1036 * descriptor.
1037 *
1038 * Return value:
1039 * nothing
1040 **/
1041static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
1042 u32 len, int flags)
1043{
1044 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1045 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1046
1047 ipr_cmd->dma_use_sg = 1;
1048
1049 if (ipr_cmd->ioa_cfg->sis64) {
1050 ioadl64->flags = cpu_to_be32(flags);
1051 ioadl64->data_len = cpu_to_be32(len);
1052 ioadl64->address = cpu_to_be64(dma_addr);
1053
1054 ipr_cmd->ioarcb.ioadl_len =
1055 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1056 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1057 } else {
1058 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1059 ioadl->address = cpu_to_be32(dma_addr);
1060
1061 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1062 ipr_cmd->ioarcb.read_ioadl_len =
1063 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1064 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1065 } else {
1066 ipr_cmd->ioarcb.ioadl_len =
1067 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1068 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1069 }
1070 }
1071}
1072
1da177e4
LT		 1073/**
1074 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1075 * @ipr_cmd: ipr command struct
1076 * @timeout_func: function to invoke if command times out
1077 * @timeout: timeout
1078 *
1079 * Return value:
1080 * none
1081 **/
1082static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1083 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1084 u32 timeout)
1085{
1086 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1087
1088 init_completion(&ipr_cmd->completion);
1089 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1090
1091 spin_unlock_irq(ioa_cfg->host->host_lock);
1092 wait_for_completion(&ipr_cmd->completion);
1093 spin_lock_irq(ioa_cfg->host->host_lock);
1094}
1095
05a6538a 1096static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1097{
3f1c0581
BK		 1098 unsigned int hrrq;
1099
05a6538a 1100 if (ioa_cfg->hrrq_num == 1)
3f1c0581
BK		 1101 hrrq = 0;
1102 else {
1103 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1104 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1105 }
1106 return hrrq;
05a6538a 1107}
1108
1da177e4
LT		 1109/**
1110 * ipr_send_hcam - Send an HCAM to the adapter.
1111 * @ioa_cfg: ioa config struct
1112 * @type: HCAM type
1113 * @hostrcb: hostrcb struct
1114 *
1115 * This function will send a Host Controlled Async command to the adapter.
1116 * If HCAMs are currently not allowed to be issued to the adapter, it will
1117 * place the hostrcb on the free queue.
1118 *
1119 * Return value:
1120 * none
1121 **/
1122static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1123 struct ipr_hostrcb *hostrcb)
1124{
1125 struct ipr_cmnd *ipr_cmd;
1126 struct ipr_ioarcb *ioarcb;
1127
56d6aa33 1128 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1129 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1130 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1131 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1132
1133 ipr_cmd->u.hostrcb = hostrcb;
1134 ioarcb = &ipr_cmd->ioarcb;
1135
1136 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1137 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1138 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1139 ioarcb->cmd_pkt.cdb[1] = type;
1140 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1141 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1142
a32c055f
WB		 1143 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1144 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1145
1146 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1147 ipr_cmd->done = ipr_process_ccn;
1148 else
1149 ipr_cmd->done = ipr_process_error;
1150
1151 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1152
a32c055f 1153 ipr_send_command(ipr_cmd);
1da177e4
LT		 1154 } else {
1155 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1156 }
1157}
1158
3e7ebdfa
WB		 1159/**
1160 * ipr_update_ata_class - Update the ata class in the resource entry
1161 * @res: resource entry struct
1162 * @proto: cfgte device bus protocol value
1163 *
1164 * Return value:
1165 * none
1166 **/
1167static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1168{
203fa3fe 1169 switch (proto) {
3e7ebdfa
WB		 1170 case IPR_PROTO_SATA:
1171 case IPR_PROTO_SAS_STP:
1172 res->ata_class = ATA_DEV_ATA;
1173 break;
1174 case IPR_PROTO_SATA_ATAPI:
1175 case IPR_PROTO_SAS_STP_ATAPI:
1176 res->ata_class = ATA_DEV_ATAPI;
1177 break;
1178 default:
1179 res->ata_class = ATA_DEV_UNKNOWN;
1180 break;
1181 };
1182}
1183
1da177e4
LT		 1184/**
1185 * ipr_init_res_entry - Initialize a resource entry struct.
1186 * @res: resource entry struct
3e7ebdfa 1187 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1188 *
1189 * Return value:
1190 * none
1191 **/
3e7ebdfa
WB		 1192static void ipr_init_res_entry(struct ipr_resource_entry *res,
1193 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1194{
3e7ebdfa
WB		 1195 int found = 0;
1196 unsigned int proto;
1197 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1198 struct ipr_resource_entry *gscsi_res = NULL;
1199
ee0a90fa 1200 res->needs_sync_complete = 0;
1da177e4
LT		 1201 res->in_erp = 0;
1202 res->add_to_ml = 0;
1203 res->del_from_ml = 0;
1204 res->resetting_device = 0;
0b1f8d44 1205 res->reset_occurred = 0;
1da177e4 1206 res->sdev = NULL;
35a39691 1207 res->sata_port = NULL;
3e7ebdfa
WB		 1208
1209 if (ioa_cfg->sis64) {
1210 proto = cfgtew->u.cfgte64->proto;
359d96e7
BK		 1211 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1212 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
3e7ebdfa 1213 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1214 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1215
1216 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1217 sizeof(res->res_path));
1218
1219 res->bus = 0;
0cb992ed
WB		 1220 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1221 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1222 res->lun = scsilun_to_int(&res->dev_lun);
1223
1224 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1225 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1226 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1227 found = 1;
1228 res->target = gscsi_res->target;
1229 break;
1230 }
1231 }
1232 if (!found) {
1233 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1234 ioa_cfg->max_devs_supported);
1235 set_bit(res->target, ioa_cfg->target_ids);
1236 }
3e7ebdfa
WB		 1237 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1238 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1239 res->target = 0;
1240 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1241 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1242 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1243 ioa_cfg->max_devs_supported);
1244 set_bit(res->target, ioa_cfg->array_ids);
1245 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1246 res->bus = IPR_VSET_VIRTUAL_BUS;
1247 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1248 ioa_cfg->max_devs_supported);
1249 set_bit(res->target, ioa_cfg->vset_ids);
1250 } else {
1251 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1252 ioa_cfg->max_devs_supported);
1253 set_bit(res->target, ioa_cfg->target_ids);
1254 }
1255 } else {
1256 proto = cfgtew->u.cfgte->proto;
1257 res->qmodel = IPR_QUEUEING_MODEL(res);
1258 res->flags = cfgtew->u.cfgte->flags;
1259 if (res->flags & IPR_IS_IOA_RESOURCE)
1260 res->type = IPR_RES_TYPE_IOAFP;
1261 else
1262 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1263
1264 res->bus = cfgtew->u.cfgte->res_addr.bus;
1265 res->target = cfgtew->u.cfgte->res_addr.target;
1266 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1267 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1268 }
1269
1270 ipr_update_ata_class(res, proto);
1271}
1272
1273/**
1274 * ipr_is_same_device - Determine if two devices are the same.
1275 * @res: resource entry struct
1276 * @cfgtew: config table entry wrapper struct
1277 *
1278 * Return value:
1279 * 1 if the devices are the same / 0 otherwise
1280 **/
1281static int ipr_is_same_device(struct ipr_resource_entry *res,
1282 struct ipr_config_table_entry_wrapper *cfgtew)
1283{
1284 if (res->ioa_cfg->sis64) {
1285 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1286 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1287 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1288 sizeof(cfgtew->u.cfgte64->lun))) {
1289 return 1;
1290 }
1291 } else {
1292 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1293 res->target == cfgtew->u.cfgte->res_addr.target &&
1294 res->lun == cfgtew->u.cfgte->res_addr.lun)
1295 return 1;
1296 }
1297
1298 return 0;
1299}
1300
1301/**
b3b3b407 1302 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1303 * @res_path: resource path
1304 * @buf: buffer
b3b3b407 1305 * @len: length of buffer provided
3e7ebdfa
WB		 1306 *
1307 * Return value:
1308 * pointer to buffer
1309 **/
b3b3b407 1310static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1311{
1312 int i;
5adcbeb3 1313 char *p = buffer;
3e7ebdfa 1314
46d74563 1315 *p = '\0';
5adcbeb3
WB		 1316 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1317 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1318 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1319
1320 return buffer;
1321}
1322
b3b3b407
BK		 1323/**
1324 * ipr_format_res_path - Format the resource path for printing.
1325 * @ioa_cfg: ioa config struct
1326 * @res_path: resource path
1327 * @buf: buffer
1328 * @len: length of buffer provided
1329 *
1330 * Return value:
1331 * pointer to buffer
1332 **/
1333static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1334 u8 *res_path, char *buffer, int len)
1335{
1336 char *p = buffer;
1337
1338 *p = '\0';
1339 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1340 __ipr_format_res_path(res_path, p, len - (buffer - p));
1341 return buffer;
1342}
1343
3e7ebdfa
WB		 1344/**
1345 * ipr_update_res_entry - Update the resource entry.
1346 * @res: resource entry struct
1347 * @cfgtew: config table entry wrapper struct
1348 *
1349 * Return value:
1350 * none
1351 **/
1352static void ipr_update_res_entry(struct ipr_resource_entry *res,
1353 struct ipr_config_table_entry_wrapper *cfgtew)
1354{
1355 char buffer[IPR_MAX_RES_PATH_LENGTH];
1356 unsigned int proto;
1357 int new_path = 0;
1358
1359 if (res->ioa_cfg->sis64) {
359d96e7
BK		 1360 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1361 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
75576bb9 1362 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1363
1364 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1365 sizeof(struct ipr_std_inq_data));
1366
1367 res->qmodel = IPR_QUEUEING_MODEL64(res);
1368 proto = cfgtew->u.cfgte64->proto;
1369 res->res_handle = cfgtew->u.cfgte64->res_handle;
1370 res->dev_id = cfgtew->u.cfgte64->dev_id;
1371
1372 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1373 sizeof(res->dev_lun.scsi_lun));
1374
1375 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1376 sizeof(res->res_path))) {
1377 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1378 sizeof(res->res_path));
1379 new_path = 1;
1380 }
1381
1382 if (res->sdev && new_path)
1383 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1384 ipr_format_res_path(res->ioa_cfg,
1385 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1386 } else {
1387 res->flags = cfgtew->u.cfgte->flags;
1388 if (res->flags & IPR_IS_IOA_RESOURCE)
1389 res->type = IPR_RES_TYPE_IOAFP;
1390 else
1391 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1392
1393 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1394 sizeof(struct ipr_std_inq_data));
1395
1396 res->qmodel = IPR_QUEUEING_MODEL(res);
1397 proto = cfgtew->u.cfgte->proto;
1398 res->res_handle = cfgtew->u.cfgte->res_handle;
1399 }
1400
1401 ipr_update_ata_class(res, proto);
1402}
1403
1404/**
1405 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1406 * for the resource.
1407 * @res: resource entry struct
1408 * @cfgtew: config table entry wrapper struct
1409 *
1410 * Return value:
1411 * none
1412 **/
1413static void ipr_clear_res_target(struct ipr_resource_entry *res)
1414{
1415 struct ipr_resource_entry *gscsi_res = NULL;
1416 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1417
1418 if (!ioa_cfg->sis64)
1419 return;
1420
1421 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1422 clear_bit(res->target, ioa_cfg->array_ids);
1423 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1424 clear_bit(res->target, ioa_cfg->vset_ids);
1425 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1426 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1427 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1428 return;
1429 clear_bit(res->target, ioa_cfg->target_ids);
1430
1431 } else if (res->bus == 0)
1432 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1433}
1434
1435/**
1436 * ipr_handle_config_change - Handle a config change from the adapter
1437 * @ioa_cfg: ioa config struct
1438 * @hostrcb: hostrcb
1439 *
1440 * Return value:
1441 * none
1442 **/
1443static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1444 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1445{
1446 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1447 struct ipr_config_table_entry_wrapper cfgtew;
1448 __be32 cc_res_handle;
1449
1da177e4
LT		 1450 u32 is_ndn = 1;
1451
3e7ebdfa
WB		 1452 if (ioa_cfg->sis64) {
1453 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1454 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1455 } else {
1456 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1457 cc_res_handle = cfgtew.u.cfgte->res_handle;
1458 }
1da177e4
LT		 1459
1460 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1461 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1462 is_ndn = 0;
1463 break;
1464 }
1465 }
1466
1467 if (is_ndn) {
1468 if (list_empty(&ioa_cfg->free_res_q)) {
1469 ipr_send_hcam(ioa_cfg,
1470 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1471 hostrcb);
1472 return;
1473 }
1474
1475 res = list_entry(ioa_cfg->free_res_q.next,
1476 struct ipr_resource_entry, queue);
1477
1478 list_del(&res->queue);
3e7ebdfa 1479 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1480 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1481 }
1482
3e7ebdfa 1483 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1484
1485 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1486 if (res->sdev) {
1da177e4 1487 res->del_from_ml = 1;
3e7ebdfa 1488 res->res_handle = IPR_INVALID_RES_HANDLE;
f688f96d 1489 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1490 } else {
1491 ipr_clear_res_target(res);
1da177e4 1492 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1493 }
5767a1c4 1494 } else if (!res->sdev || res->del_from_ml) {
1da177e4 1495 res->add_to_ml = 1;
f688f96d 1496 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 1497 }
1498
1499 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1500}
1501
1502/**
1503 * ipr_process_ccn - Op done function for a CCN.
1504 * @ipr_cmd: ipr command struct
1505 *
1506 * This function is the op done function for a configuration
1507 * change notification host controlled async from the adapter.
1508 *
1509 * Return value:
1510 * none
1511 **/
1512static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1513{
1514 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1515 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1516 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4 1517
afc3f83c 1518 list_del_init(&hostrcb->queue);
05a6538a 1519 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1520
1521 if (ioasc) {
4fdd7c7a
BK		 1522 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1523 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1da177e4
LT		 1524 dev_err(&ioa_cfg->pdev->dev,
1525 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1526
1527 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1528 } else {
1529 ipr_handle_config_change(ioa_cfg, hostrcb);
1530 }
1531}
1532
8cf093e2
BK		 1533/**
1534 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1535 * @i: index into buffer
1536 * @buf: string to modify
1537 *
1538 * This function will strip all trailing whitespace, pad the end
1539 * of the string with a single space, and NULL terminate the string.
1540 *
1541 * Return value:
1542 * new length of string
1543 **/
1544static int strip_and_pad_whitespace(int i, char *buf)
1545{
1546 while (i && buf[i] == ' ')
1547 i--;
1548 buf[i+1] = ' ';
1549 buf[i+2] = '\0';
1550 return i + 2;
1551}
1552
1553/**
1554 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1555 * @prefix: string to print at start of printk
1556 * @hostrcb: hostrcb pointer
1557 * @vpd: vendor/product id/sn struct
1558 *
1559 * Return value:
1560 * none
1561 **/
1562static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1563 struct ipr_vpd *vpd)
1564{
1565 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1566 int i = 0;
1567
1568 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1569 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1570
1571 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1572 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1573
1574 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1575 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1576
1577 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1578}
1579
1da177e4
LT		 1580/**
1581 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1582 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1583 *
1584 * Return value:
1585 * none
1586 **/
cfc32139 1587static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1588{
1589 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1590 + IPR_SERIAL_NUM_LEN];
1591
cfc32139
BK		 1592 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1593 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1594 IPR_PROD_ID_LEN);
1595 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1596 ipr_err("Vendor/Product ID: %s\n", buffer);
1597
cfc32139 1598 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1599 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1600 ipr_err(" Serial Number: %s\n", buffer);
1601}
1602
8cf093e2
BK		 1603/**
1604 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1605 * @prefix: string to print at start of printk
1606 * @hostrcb: hostrcb pointer
1607 * @vpd: vendor/product id/sn/wwn struct
1608 *
1609 * Return value:
1610 * none
1611 **/
1612static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1613 struct ipr_ext_vpd *vpd)
1614{
1615 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1616 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1617 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1618}
1619
ee0f05b8
BK		 1620/**
1621 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1622 * @vpd: vendor/product id/sn/wwn struct
1623 *
1624 * Return value:
1625 * none
1626 **/
1627static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1628{
1629 ipr_log_vpd(&vpd->vpd);
1630 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1631 be32_to_cpu(vpd->wwid[1]));
1632}
1633
1634/**
1635 * ipr_log_enhanced_cache_error - Log a cache error.
1636 * @ioa_cfg: ioa config struct
1637 * @hostrcb: hostrcb struct
1638 *
1639 * Return value:
1640 * none
1641 **/
1642static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1643 struct ipr_hostrcb *hostrcb)
1644{
4565e370
WB		 1645 struct ipr_hostrcb_type_12_error *error;
1646
1647 if (ioa_cfg->sis64)
1648 error = &hostrcb->hcam.u.error64.u.type_12_error;
1649 else
1650 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1651
1652 ipr_err("-----Current Configuration-----\n");
1653 ipr_err("Cache Directory Card Information:\n");
1654 ipr_log_ext_vpd(&error->ioa_vpd);
1655 ipr_err("Adapter Card Information:\n");
1656 ipr_log_ext_vpd(&error->cfc_vpd);
1657
1658 ipr_err("-----Expected Configuration-----\n");
1659 ipr_err("Cache Directory Card Information:\n");
1660 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1661 ipr_err("Adapter Card Information:\n");
1662 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1663
1664 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1665 be32_to_cpu(error->ioa_data[0]),
1666 be32_to_cpu(error->ioa_data[1]),
1667 be32_to_cpu(error->ioa_data[2]));
1668}
1669
1da177e4
LT		 1670/**
1671 * ipr_log_cache_error - Log a cache error.
1672 * @ioa_cfg: ioa config struct
1673 * @hostrcb: hostrcb struct
1674 *
1675 * Return value:
1676 * none
1677 **/
1678static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1679 struct ipr_hostrcb *hostrcb)
1680{
1681 struct ipr_hostrcb_type_02_error *error =
1682 &hostrcb->hcam.u.error.u.type_02_error;
1683
1684 ipr_err("-----Current Configuration-----\n");
1685 ipr_err("Cache Directory Card Information:\n");
cfc32139 1686 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1687 ipr_err("Adapter Card Information:\n");
cfc32139 1688 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1689
1690 ipr_err("-----Expected Configuration-----\n");
1691 ipr_err("Cache Directory Card Information:\n");
cfc32139 1692 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1693 ipr_err("Adapter Card Information:\n");
cfc32139 1694 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1695
1696 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1697 be32_to_cpu(error->ioa_data[0]),
1698 be32_to_cpu(error->ioa_data[1]),
1699 be32_to_cpu(error->ioa_data[2]));
1700}
1701
ee0f05b8
BK		 1702/**
1703 * ipr_log_enhanced_config_error - Log a configuration error.
1704 * @ioa_cfg: ioa config struct
1705 * @hostrcb: hostrcb struct
1706 *
1707 * Return value:
1708 * none
1709 **/
1710static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1711 struct ipr_hostrcb *hostrcb)
1712{
1713 int errors_logged, i;
1714 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1715 struct ipr_hostrcb_type_13_error *error;
1716
1717 error = &hostrcb->hcam.u.error.u.type_13_error;
1718 errors_logged = be32_to_cpu(error->errors_logged);
1719
1720 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1721 be32_to_cpu(error->errors_detected), errors_logged);
1722
1723 dev_entry = error->dev;
1724
1725 for (i = 0; i < errors_logged; i++, dev_entry++) {
1726 ipr_err_separator;
1727
1728 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1729 ipr_log_ext_vpd(&dev_entry->vpd);
1730
1731 ipr_err("-----New Device Information-----\n");
1732 ipr_log_ext_vpd(&dev_entry->new_vpd);
1733
1734 ipr_err("Cache Directory Card Information:\n");
1735 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1736
1737 ipr_err("Adapter Card Information:\n");
1738 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1739 }
1740}
1741
4565e370
WB		 1742/**
1743 * ipr_log_sis64_config_error - Log a device error.
1744 * @ioa_cfg: ioa config struct
1745 * @hostrcb: hostrcb struct
1746 *
1747 * Return value:
1748 * none
1749 **/
1750static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1751 struct ipr_hostrcb *hostrcb)
1752{
1753 int errors_logged, i;
1754 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1755 struct ipr_hostrcb_type_23_error *error;
1756 char buffer[IPR_MAX_RES_PATH_LENGTH];
1757
1758 error = &hostrcb->hcam.u.error64.u.type_23_error;
1759 errors_logged = be32_to_cpu(error->errors_logged);
1760
1761 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1762 be32_to_cpu(error->errors_detected), errors_logged);
1763
1764 dev_entry = error->dev;
1765
1766 for (i = 0; i < errors_logged; i++, dev_entry++) {
1767 ipr_err_separator;
1768
1769 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1770 __ipr_format_res_path(dev_entry->res_path,
1771 buffer, sizeof(buffer)));
4565e370
WB		 1772 ipr_log_ext_vpd(&dev_entry->vpd);
1773
1774 ipr_err("-----New Device Information-----\n");
1775 ipr_log_ext_vpd(&dev_entry->new_vpd);
1776
1777 ipr_err("Cache Directory Card Information:\n");
1778 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1779
1780 ipr_err("Adapter Card Information:\n");
1781 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1782 }
1783}
1784
1da177e4
LT		 1785/**
1786 * ipr_log_config_error - Log a configuration error.
1787 * @ioa_cfg: ioa config struct
1788 * @hostrcb: hostrcb struct
1789 *
1790 * Return value:
1791 * none
1792 **/
1793static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1794 struct ipr_hostrcb *hostrcb)
1795{
1796 int errors_logged, i;
1797 struct ipr_hostrcb_device_data_entry *dev_entry;
1798 struct ipr_hostrcb_type_03_error *error;
1799
1800 error = &hostrcb->hcam.u.error.u.type_03_error;
1801 errors_logged = be32_to_cpu(error->errors_logged);
1802
1803 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1804 be32_to_cpu(error->errors_detected), errors_logged);
1805
cfc32139 1806 dev_entry = error->dev;
1da177e4
LT		 1807
1808 for (i = 0; i < errors_logged; i++, dev_entry++) {
1809 ipr_err_separator;
1810
fa15b1f6 1811 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1812 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1813
1814 ipr_err("-----New Device Information-----\n");
cfc32139 1815 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1816
1817 ipr_err("Cache Directory Card Information:\n");
cfc32139 1818 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1819
1820 ipr_err("Adapter Card Information:\n");
cfc32139 1821 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1822
1823 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1824 be32_to_cpu(dev_entry->ioa_data[0]),
1825 be32_to_cpu(dev_entry->ioa_data[1]),
1826 be32_to_cpu(dev_entry->ioa_data[2]),
1827 be32_to_cpu(dev_entry->ioa_data[3]),
1828 be32_to_cpu(dev_entry->ioa_data[4]));
1829 }
1830}
1831
ee0f05b8
BK		 1832/**
1833 * ipr_log_enhanced_array_error - Log an array configuration error.
1834 * @ioa_cfg: ioa config struct
1835 * @hostrcb: hostrcb struct
1836 *
1837 * Return value:
1838 * none
1839 **/
1840static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1841 struct ipr_hostrcb *hostrcb)
1842{
1843 int i, num_entries;
1844 struct ipr_hostrcb_type_14_error *error;
1845 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1846 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1847
1848 error = &hostrcb->hcam.u.error.u.type_14_error;
1849
1850 ipr_err_separator;
1851
1852 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1853 error->protection_level,
1854 ioa_cfg->host->host_no,
1855 error->last_func_vset_res_addr.bus,
1856 error->last_func_vset_res_addr.target,
1857 error->last_func_vset_res_addr.lun);
1858
1859 ipr_err_separator;
1860
1861 array_entry = error->array_member;
1862 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1863 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1864
1865 for (i = 0; i < num_entries; i++, array_entry++) {
1866 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1867 continue;
1868
1869 if (be32_to_cpu(error->exposed_mode_adn) == i)
1870 ipr_err("Exposed Array Member %d:\n", i);
1871 else
1872 ipr_err("Array Member %d:\n", i);
1873
1874 ipr_log_ext_vpd(&array_entry->vpd);
1875 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1876 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1877 "Expected Location");
1878
1879 ipr_err_separator;
1880 }
1881}
1882
1da177e4
LT		 1883/**
1884 * ipr_log_array_error - Log an array configuration error.
1885 * @ioa_cfg: ioa config struct
1886 * @hostrcb: hostrcb struct
1887 *
1888 * Return value:
1889 * none
1890 **/
1891static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1892 struct ipr_hostrcb *hostrcb)
1893{
1894 int i;
1895 struct ipr_hostrcb_type_04_error *error;
1896 struct ipr_hostrcb_array_data_entry *array_entry;
1897 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1898
1899 error = &hostrcb->hcam.u.error.u.type_04_error;
1900
1901 ipr_err_separator;
1902
1903 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1904 error->protection_level,
1905 ioa_cfg->host->host_no,
1906 error->last_func_vset_res_addr.bus,
1907 error->last_func_vset_res_addr.target,
1908 error->last_func_vset_res_addr.lun);
1909
1910 ipr_err_separator;
1911
1912 array_entry = error->array_member;
1913
1914 for (i = 0; i < 18; i++) {
cfc32139 1915 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1916 continue;
1917
fa15b1f6 1918 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1919 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1920 else
1da177e4 1921 ipr_err("Array Member %d:\n", i);
1da177e4 1922
cfc32139 1923 ipr_log_vpd(&array_entry->vpd);
1da177e4 1924
fa15b1f6
BK		 1925 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1926 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1927 "Expected Location");
1da177e4
LT		 1928
1929 ipr_err_separator;
1930
1931 if (i == 9)
1932 array_entry = error->array_member2;
1933 else
1934 array_entry++;
1935 }
1936}
1937
1938/**
b0df54bb 1939 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1940 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1941 * @data: IOA error data
1942 * @len: data length
1da177e4
LT		 1943 *
1944 * Return value:
1945 * none
1946 **/
359d96e7 1947static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1da177e4
LT		 1948{
1949 int i;
1da177e4 1950
b0df54bb 1951 if (len == 0)
1da177e4
LT		 1952 return;
1953
ac719aba
BK		 1954 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1955 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1956
b0df54bb 1957 for (i = 0; i < len / 4; i += 4) {
1da177e4 1958 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1959 be32_to_cpu(data[i]),
1960 be32_to_cpu(data[i+1]),
1961 be32_to_cpu(data[i+2]),
1962 be32_to_cpu(data[i+3]));
1da177e4
LT		 1963 }
1964}
1965
ee0f05b8
BK		 1966/**
1967 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1968 * @ioa_cfg: ioa config struct
1969 * @hostrcb: hostrcb struct
1970 *
1971 * Return value:
1972 * none
1973 **/
1974static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1975 struct ipr_hostrcb *hostrcb)
1976{
1977 struct ipr_hostrcb_type_17_error *error;
1978
4565e370
WB		 1979 if (ioa_cfg->sis64)
1980 error = &hostrcb->hcam.u.error64.u.type_17_error;
1981 else
1982 error = &hostrcb->hcam.u.error.u.type_17_error;
1983
ee0f05b8 1984 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1985 strim(error->failure_reason);
ee0f05b8 1986
8cf093e2
BK		 1987 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1988 be32_to_cpu(hostrcb->hcam.u.error.prc));
1989 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1990 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1991 be32_to_cpu(hostrcb->hcam.length) -
1992 (offsetof(struct ipr_hostrcb_error, u) +
1993 offsetof(struct ipr_hostrcb_type_17_error, data)));
1994}
1995
b0df54bb
BK		 1996/**
1997 * ipr_log_dual_ioa_error - Log a dual adapter error.
1998 * @ioa_cfg: ioa config struct
1999 * @hostrcb: hostrcb struct
2000 *
2001 * Return value:
2002 * none
2003 **/
2004static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
2005 struct ipr_hostrcb *hostrcb)
2006{
2007 struct ipr_hostrcb_type_07_error *error;
2008
2009 error = &hostrcb->hcam.u.error.u.type_07_error;
2010 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 2011 strim(error->failure_reason);
b0df54bb 2012
8cf093e2
BK		 2013 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
2014 be32_to_cpu(hostrcb->hcam.u.error.prc));
2015 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 2016 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 2017 be32_to_cpu(hostrcb->hcam.length) -
2018 (offsetof(struct ipr_hostrcb_error, u) +
2019 offsetof(struct ipr_hostrcb_type_07_error, data)));
2020}
2021
49dc6a18
BK		 2022static const struct {
2023 u8 active;
2024 char *desc;
2025} path_active_desc[] = {
2026 { IPR_PATH_NO_INFO, "Path" },
2027 { IPR_PATH_ACTIVE, "Active path" },
2028 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
2029};
2030
2031static const struct {
2032 u8 state;
2033 char *desc;
2034} path_state_desc[] = {
2035 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
2036 { IPR_PATH_HEALTHY, "is healthy" },
2037 { IPR_PATH_DEGRADED, "is degraded" },
2038 { IPR_PATH_FAILED, "is failed" }
2039};
2040
2041/**
2042 * ipr_log_fabric_path - Log a fabric path error
2043 * @hostrcb: hostrcb struct
2044 * @fabric: fabric descriptor
2045 *
2046 * Return value:
2047 * none
2048 **/
2049static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2050 struct ipr_hostrcb_fabric_desc *fabric)
2051{
2052 int i, j;
2053 u8 path_state = fabric->path_state;
2054 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2055 u8 state = path_state & IPR_PATH_STATE_MASK;
2056
2057 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2058 if (path_active_desc[i].active != active)
2059 continue;
2060
2061 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2062 if (path_state_desc[j].state != state)
2063 continue;
2064
2065 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2066 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2067 path_active_desc[i].desc, path_state_desc[j].desc,
2068 fabric->ioa_port);
2069 } else if (fabric->cascaded_expander == 0xff) {
2070 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2071 path_active_desc[i].desc, path_state_desc[j].desc,
2072 fabric->ioa_port, fabric->phy);
2073 } else if (fabric->phy == 0xff) {
2074 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2075 path_active_desc[i].desc, path_state_desc[j].desc,
2076 fabric->ioa_port, fabric->cascaded_expander);
2077 } else {
2078 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2079 path_active_desc[i].desc, path_state_desc[j].desc,
2080 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2081 }
2082 return;
2083 }
2084 }
2085
2086 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2087 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2088}
2089
4565e370
WB		 2090/**
2091 * ipr_log64_fabric_path - Log a fabric path error
2092 * @hostrcb: hostrcb struct
2093 * @fabric: fabric descriptor
2094 *
2095 * Return value:
2096 * none
2097 **/
2098static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2099 struct ipr_hostrcb64_fabric_desc *fabric)
2100{
2101 int i, j;
2102 u8 path_state = fabric->path_state;
2103 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2104 u8 state = path_state & IPR_PATH_STATE_MASK;
2105 char buffer[IPR_MAX_RES_PATH_LENGTH];
2106
2107 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2108 if (path_active_desc[i].active != active)
2109 continue;
2110
2111 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2112 if (path_state_desc[j].state != state)
2113 continue;
2114
2115 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2116 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2117 ipr_format_res_path(hostrcb->ioa_cfg,
2118 fabric->res_path,
2119 buffer, sizeof(buffer)));
4565e370
WB		 2120 return;
2121 }
2122 }
2123
2124 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2125 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2126 buffer, sizeof(buffer)));
4565e370
WB		 2127}
2128
49dc6a18
BK		 2129static const struct {
2130 u8 type;
2131 char *desc;
2132} path_type_desc[] = {
2133 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2134 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2135 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2136 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2137};
2138
2139static const struct {
2140 u8 status;
2141 char *desc;
2142} path_status_desc[] = {
2143 { IPR_PATH_CFG_NO_PROB, "Functional" },
2144 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2145 { IPR_PATH_CFG_FAILED, "Failed" },
2146 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2147 { IPR_PATH_NOT_DETECTED, "Missing" },
2148 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2149};
2150
2151static const char *link_rate[] = {
2152 "unknown",
2153 "disabled",
2154 "phy reset problem",
2155 "spinup hold",
2156 "port selector",
2157 "unknown",
2158 "unknown",
2159 "unknown",
2160 "1.5Gbps",
2161 "3.0Gbps",
2162 "unknown",
2163 "unknown",
2164 "unknown",
2165 "unknown",
2166 "unknown",
2167 "unknown"
2168};
2169
2170/**
2171 * ipr_log_path_elem - Log a fabric path element.
2172 * @hostrcb: hostrcb struct
2173 * @cfg: fabric path element struct
2174 *
2175 * Return value:
2176 * none
2177 **/
2178static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2179 struct ipr_hostrcb_config_element *cfg)
2180{
2181 int i, j;
2182 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2183 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2184
2185 if (type == IPR_PATH_CFG_NOT_EXIST)
2186 return;
2187
2188 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2189 if (path_type_desc[i].type != type)
2190 continue;
2191
2192 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2193 if (path_status_desc[j].status != status)
2194 continue;
2195
2196 if (type == IPR_PATH_CFG_IOA_PORT) {
2197 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2198 path_status_desc[j].desc, path_type_desc[i].desc,
2199 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2200 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2201 } else {
2202 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2203 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2204 path_status_desc[j].desc, path_type_desc[i].desc,
2205 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2206 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2207 } else if (cfg->cascaded_expander == 0xff) {
2208 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2209 "WWN=%08X%08X\n", path_status_desc[j].desc,
2210 path_type_desc[i].desc, cfg->phy,
2211 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2212 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2213 } else if (cfg->phy == 0xff) {
2214 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2215 "WWN=%08X%08X\n", path_status_desc[j].desc,
2216 path_type_desc[i].desc, cfg->cascaded_expander,
2217 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2218 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2219 } else {
2220 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2221 "WWN=%08X%08X\n", path_status_desc[j].desc,
2222 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2223 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2224 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2225 }
2226 }
2227 return;
2228 }
2229 }
2230
2231 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2232 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2233 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2234 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2235}
2236
4565e370
WB		 2237/**
2238 * ipr_log64_path_elem - Log a fabric path element.
2239 * @hostrcb: hostrcb struct
2240 * @cfg: fabric path element struct
2241 *
2242 * Return value:
2243 * none
2244 **/
2245static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2246 struct ipr_hostrcb64_config_element *cfg)
2247{
2248 int i, j;
2249 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2250 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2251 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2252 char buffer[IPR_MAX_RES_PATH_LENGTH];
2253
2254 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2255 return;
2256
2257 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2258 if (path_type_desc[i].type != type)
2259 continue;
2260
2261 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2262 if (path_status_desc[j].status != status)
2263 continue;
2264
2265 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2266 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2267 ipr_format_res_path(hostrcb->ioa_cfg,
2268 cfg->res_path, buffer, sizeof(buffer)),
2269 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2270 be32_to_cpu(cfg->wwid[0]),
2271 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2272 return;
2273 }
2274 }
2275 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2276 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2277 ipr_format_res_path(hostrcb->ioa_cfg,
2278 cfg->res_path, buffer, sizeof(buffer)),
2279 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2280 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2281}
2282
49dc6a18
BK		 2283/**
2284 * ipr_log_fabric_error - Log a fabric error.
2285 * @ioa_cfg: ioa config struct
2286 * @hostrcb: hostrcb struct
2287 *
2288 * Return value:
2289 * none
2290 **/
2291static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2292 struct ipr_hostrcb *hostrcb)
2293{
2294 struct ipr_hostrcb_type_20_error *error;
2295 struct ipr_hostrcb_fabric_desc *fabric;
2296 struct ipr_hostrcb_config_element *cfg;
2297 int i, add_len;
2298
2299 error = &hostrcb->hcam.u.error.u.type_20_error;
2300 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2301 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2302
2303 add_len = be32_to_cpu(hostrcb->hcam.length) -
2304 (offsetof(struct ipr_hostrcb_error, u) +
2305 offsetof(struct ipr_hostrcb_type_20_error, desc));
2306
2307 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2308 ipr_log_fabric_path(hostrcb, fabric);
2309 for_each_fabric_cfg(fabric, cfg)
2310 ipr_log_path_elem(hostrcb, cfg);
2311
2312 add_len -= be16_to_cpu(fabric->length);
2313 fabric = (struct ipr_hostrcb_fabric_desc *)
2314 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2315 }
2316
359d96e7 2317 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
49dc6a18
BK		 2318}
2319
4565e370
WB		 2320/**
2321 * ipr_log_sis64_array_error - Log a sis64 array error.
2322 * @ioa_cfg: ioa config struct
2323 * @hostrcb: hostrcb struct
2324 *
2325 * Return value:
2326 * none
2327 **/
2328static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2329 struct ipr_hostrcb *hostrcb)
2330{
2331 int i, num_entries;
2332 struct ipr_hostrcb_type_24_error *error;
2333 struct ipr_hostrcb64_array_data_entry *array_entry;
2334 char buffer[IPR_MAX_RES_PATH_LENGTH];
2335 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2336
2337 error = &hostrcb->hcam.u.error64.u.type_24_error;
2338
2339 ipr_err_separator;
2340
2341 ipr_err("RAID %s Array Configuration: %s\n",
2342 error->protection_level,
b3b3b407
BK		 2343 ipr_format_res_path(ioa_cfg, error->last_res_path,
2344 buffer, sizeof(buffer)));
4565e370
WB		 2345
2346 ipr_err_separator;
2347
2348 array_entry = error->array_member;
7262026f
WB		 2349 num_entries = min_t(u32, error->num_entries,
2350 ARRAY_SIZE(error->array_member));
4565e370
WB		 2351
2352 for (i = 0; i < num_entries; i++, array_entry++) {
2353
2354 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2355 continue;
2356
2357 if (error->exposed_mode_adn == i)
2358 ipr_err("Exposed Array Member %d:\n", i);
2359 else
2360 ipr_err("Array Member %d:\n", i);
2361
2362 ipr_err("Array Member %d:\n", i);
2363 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2364 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2365 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2366 buffer, sizeof(buffer)));
7262026f 2367 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2368 ipr_format_res_path(ioa_cfg,
2369 array_entry->expected_res_path,
2370 buffer, sizeof(buffer)));
4565e370
WB		 2371
2372 ipr_err_separator;
2373 }
2374}
2375
2376/**
2377 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2378 * @ioa_cfg: ioa config struct
2379 * @hostrcb: hostrcb struct
2380 *
2381 * Return value:
2382 * none
2383 **/
2384static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2385 struct ipr_hostrcb *hostrcb)
2386{
2387 struct ipr_hostrcb_type_30_error *error;
2388 struct ipr_hostrcb64_fabric_desc *fabric;
2389 struct ipr_hostrcb64_config_element *cfg;
2390 int i, add_len;
2391
2392 error = &hostrcb->hcam.u.error64.u.type_30_error;
2393
2394 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2395 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2396
2397 add_len = be32_to_cpu(hostrcb->hcam.length) -
2398 (offsetof(struct ipr_hostrcb64_error, u) +
2399 offsetof(struct ipr_hostrcb_type_30_error, desc));
2400
2401 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2402 ipr_log64_fabric_path(hostrcb, fabric);
2403 for_each_fabric_cfg(fabric, cfg)
2404 ipr_log64_path_elem(hostrcb, cfg);
2405
2406 add_len -= be16_to_cpu(fabric->length);
2407 fabric = (struct ipr_hostrcb64_fabric_desc *)
2408 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2409 }
2410
359d96e7 2411 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
4565e370
WB		 2412}
2413
b0df54bb
BK		 2414/**
2415 * ipr_log_generic_error - Log an adapter error.
2416 * @ioa_cfg: ioa config struct
2417 * @hostrcb: hostrcb struct
2418 *
2419 * Return value:
2420 * none
2421 **/
2422static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2423 struct ipr_hostrcb *hostrcb)
2424{
ac719aba 2425 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2426 be32_to_cpu(hostrcb->hcam.length));
2427}
2428
169b9ec8
WX		 2429/**
2430 * ipr_log_sis64_device_error - Log a cache error.
2431 * @ioa_cfg: ioa config struct
2432 * @hostrcb: hostrcb struct
2433 *
2434 * Return value:
2435 * none
2436 **/
2437static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2438 struct ipr_hostrcb *hostrcb)
2439{
2440 struct ipr_hostrcb_type_21_error *error;
2441 char buffer[IPR_MAX_RES_PATH_LENGTH];
2442
2443 error = &hostrcb->hcam.u.error64.u.type_21_error;
2444
2445 ipr_err("-----Failing Device Information-----\n");
2446 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2447 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2448 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2449 ipr_err("Device Resource Path: %s\n",
2450 __ipr_format_res_path(error->res_path,
2451 buffer, sizeof(buffer)));
2452 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2453 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2454 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2455 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2456 ipr_err("SCSI Sense Data:\n");
2457 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2458 ipr_err("SCSI Command Descriptor Block: \n");
2459 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2460
2461 ipr_err("Additional IOA Data:\n");
2462 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2463}
2464
1da177e4
LT		 2465/**
2466 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2467 * @ioasc: IOASC
2468 *
2469 * This function will return the index of into the ipr_error_table
2470 * for the specified IOASC. If the IOASC is not in the table,
2471 * 0 will be returned, which points to the entry used for unknown errors.
2472 *
2473 * Return value:
2474 * index into the ipr_error_table
2475 **/
2476static u32 ipr_get_error(u32 ioasc)
2477{
2478 int i;
2479
2480 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2481 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2482 return i;
2483
2484 return 0;
2485}
2486
2487/**
2488 * ipr_handle_log_data - Log an adapter error.
2489 * @ioa_cfg: ioa config struct
2490 * @hostrcb: hostrcb struct
2491 *
2492 * This function logs an adapter error to the system.
2493 *
2494 * Return value:
2495 * none
2496 **/
2497static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2498 struct ipr_hostrcb *hostrcb)
2499{
2500 u32 ioasc;
2501 int error_index;
3185ea63 2502 struct ipr_hostrcb_type_21_error *error;
1da177e4
LT		 2503
2504 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2505 return;
2506
2507 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2508 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2509
4565e370
WB		 2510 if (ioa_cfg->sis64)
2511 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2512 else
2513 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2514
4565e370
WB		 2515 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2516 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2517 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2518 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2519 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2520 }
2521
2522 error_index = ipr_get_error(ioasc);
2523
2524 if (!ipr_error_table[error_index].log_hcam)
2525 return;
2526
3185ea63 2527 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2528 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2529 error = &hostrcb->hcam.u.error64.u.type_21_error;
2530
2531 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2532 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2533 return;
2534 }
2535
49dc6a18 2536 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2537
2538 /* Set indication we have logged an error */
2539 ioa_cfg->errors_logged++;
2540
933916f3 2541 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2542 return;
cf852037
BK		 2543 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2544 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2545
2546 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2547 case IPR_HOST_RCB_OVERLAY_ID_2:
2548 ipr_log_cache_error(ioa_cfg, hostrcb);
2549 break;
2550 case IPR_HOST_RCB_OVERLAY_ID_3:
2551 ipr_log_config_error(ioa_cfg, hostrcb);
2552 break;
2553 case IPR_HOST_RCB_OVERLAY_ID_4:
2554 case IPR_HOST_RCB_OVERLAY_ID_6:
2555 ipr_log_array_error(ioa_cfg, hostrcb);
2556 break;
b0df54bb
BK		 2557 case IPR_HOST_RCB_OVERLAY_ID_7:
2558 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2559 break;
ee0f05b8
BK		 2560 case IPR_HOST_RCB_OVERLAY_ID_12:
2561 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2562 break;
2563 case IPR_HOST_RCB_OVERLAY_ID_13:
2564 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2565 break;
2566 case IPR_HOST_RCB_OVERLAY_ID_14:
2567 case IPR_HOST_RCB_OVERLAY_ID_16:
2568 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2569 break;
2570 case IPR_HOST_RCB_OVERLAY_ID_17:
2571 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2572 break;
49dc6a18
BK		 2573 case IPR_HOST_RCB_OVERLAY_ID_20:
2574 ipr_log_fabric_error(ioa_cfg, hostrcb);
2575 break;
169b9ec8
WX		 2576 case IPR_HOST_RCB_OVERLAY_ID_21:
2577 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2578 break;
4565e370
WB		 2579 case IPR_HOST_RCB_OVERLAY_ID_23:
2580 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2581 break;
2582 case IPR_HOST_RCB_OVERLAY_ID_24:
2583 case IPR_HOST_RCB_OVERLAY_ID_26:
2584 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2585 break;
2586 case IPR_HOST_RCB_OVERLAY_ID_30:
2587 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2588 break;
cf852037 2589 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2590 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2591 default:
a9cfca96 2592 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2593 break;
2594 }
2595}
2596
afc3f83c
BK		 2597static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa)
2598{
2599 struct ipr_hostrcb *hostrcb;
2600
2601 hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q,
2602 struct ipr_hostrcb, queue);
2603
2604 if (unlikely(!hostrcb)) {
2605 dev_info(&ioa->pdev->dev, "Reclaiming async error buffers.");
2606 hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q,
2607 struct ipr_hostrcb, queue);
2608 }
2609
2610 list_del_init(&hostrcb->queue);
2611 return hostrcb;
2612}
2613
1da177e4
LT		 2614/**
2615 * ipr_process_error - Op done function for an adapter error log.
2616 * @ipr_cmd: ipr command struct
2617 *
2618 * This function is the op done function for an error log host
2619 * controlled async from the adapter. It will log the error and
2620 * send the HCAM back to the adapter.
2621 *
2622 * Return value:
2623 * none
2624 **/
2625static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2626{
2627 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2628 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2629 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2630 u32 fd_ioasc;
2631
2632 if (ioa_cfg->sis64)
2633 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2634 else
2635 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2636
afc3f83c 2637 list_del_init(&hostrcb->queue);
05a6538a 2638 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2639
2640 if (!ioasc) {
2641 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2642 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2643 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4fdd7c7a
BK		 2644 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2645 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
1da177e4
LT		 2646 dev_err(&ioa_cfg->pdev->dev,
2647 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2648 }
2649
afc3f83c 2650 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q);
8a4236a2 2651 schedule_work(&ioa_cfg->work_q);
afc3f83c 2652 hostrcb = ipr_get_free_hostrcb(ioa_cfg);
afc3f83c 2653
1da177e4
LT		 2654 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2655}
2656
2657/**
2658 * ipr_timeout - An internally generated op has timed out.
2659 * @ipr_cmd: ipr command struct
2660 *
2661 * This function blocks host requests and initiates an
2662 * adapter reset.
2663 *
2664 * Return value:
2665 * none
2666 **/
2667static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2668{
2669 unsigned long lock_flags = 0;
2670 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2671
2672 ENTER;
2673 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2674
2675 ioa_cfg->errors_logged++;
2676 dev_err(&ioa_cfg->pdev->dev,
2677 "Adapter being reset due to command timeout.\n");
2678
2679 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2680 ioa_cfg->sdt_state = GET_DUMP;
2681
2682 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2683 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2684
2685 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2686 LEAVE;
2687}
2688
2689/**
2690 * ipr_oper_timeout - Adapter timed out transitioning to operational
2691 * @ipr_cmd: ipr command struct
2692 *
2693 * This function blocks host requests and initiates an
2694 * adapter reset.
2695 *
2696 * Return value:
2697 * none
2698 **/
2699static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2700{
2701 unsigned long lock_flags = 0;
2702 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2703
2704 ENTER;
2705 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2706
2707 ioa_cfg->errors_logged++;
2708 dev_err(&ioa_cfg->pdev->dev,
2709 "Adapter timed out transitioning to operational.\n");
2710
2711 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2712 ioa_cfg->sdt_state = GET_DUMP;
2713
2714 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2715 if (ipr_fastfail)
2716 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2717 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2718 }
2719
2720 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2721 LEAVE;
2722}
2723
1da177e4
LT		 2724/**
2725 * ipr_find_ses_entry - Find matching SES in SES table
2726 * @res: resource entry struct of SES
2727 *
2728 * Return value:
2729 * pointer to SES table entry / NULL on failure
2730 **/
2731static const struct ipr_ses_table_entry *
2732ipr_find_ses_entry(struct ipr_resource_entry *res)
2733{
2734 int i, j, matches;
3e7ebdfa 2735 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2736 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2737
2738 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2739 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2740 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2741 vpids = &res->std_inq_data.vpids;
2742 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2743 matches++;
2744 else
2745 break;
2746 } else
2747 matches++;
2748 }
2749
2750 if (matches == IPR_PROD_ID_LEN)
2751 return ste;
2752 }
2753
2754 return NULL;
2755}
2756
2757/**
2758 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2759 * @ioa_cfg: ioa config struct
2760 * @bus: SCSI bus
2761 * @bus_width: bus width
2762 *
2763 * Return value:
2764 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2765 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2766 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2767 * max 160MHz = max 320MB/sec).
2768 **/
2769static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2770{
2771 struct ipr_resource_entry *res;
2772 const struct ipr_ses_table_entry *ste;
2773 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2774
2775 /* Loop through each config table entry in the config table buffer */
2776 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2777 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2778 continue;
2779
3e7ebdfa 2780 if (bus != res->bus)
1da177e4
LT		 2781 continue;
2782
2783 if (!(ste = ipr_find_ses_entry(res)))
2784 continue;
2785
2786 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2787 }
2788
2789 return max_xfer_rate;
2790}
2791
2792/**
2793 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2794 * @ioa_cfg: ioa config struct
2795 * @max_delay: max delay in micro-seconds to wait
2796 *
2797 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2798 *
2799 * Return value:
2800 * 0 on success / other on failure
2801 **/
2802static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2803{
2804 volatile u32 pcii_reg;
2805 int delay = 1;
2806
2807 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2808 while (delay < max_delay) {
2809 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2810
2811 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2812 return 0;
2813
2814 /* udelay cannot be used if delay is more than a few milliseconds */
2815 if ((delay / 1000) > MAX_UDELAY_MS)
2816 mdelay(delay / 1000);
2817 else
2818 udelay(delay);
2819
2820 delay += delay;
2821 }
2822 return -EIO;
2823}
2824
dcbad00e
WB		 2825/**
2826 * ipr_get_sis64_dump_data_section - Dump IOA memory
2827 * @ioa_cfg: ioa config struct
2828 * @start_addr: adapter address to dump
2829 * @dest: destination kernel buffer
2830 * @length_in_words: length to dump in 4 byte words
2831 *
2832 * Return value:
2833 * 0 on success
2834 **/
2835static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2836 u32 start_addr,
2837 __be32 *dest, u32 length_in_words)
2838{
2839 int i;
2840
2841 for (i = 0; i < length_in_words; i++) {
2842 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2843 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2844 dest++;
2845 }
2846
2847 return 0;
2848}
2849
1da177e4
LT		 2850/**
2851 * ipr_get_ldump_data_section - Dump IOA memory
2852 * @ioa_cfg: ioa config struct
2853 * @start_addr: adapter address to dump
2854 * @dest: destination kernel buffer
2855 * @length_in_words: length to dump in 4 byte words
2856 *
2857 * Return value:
2858 * 0 on success / -EIO on failure
2859 **/
2860static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2861 u32 start_addr,
2862 __be32 *dest, u32 length_in_words)
2863{
2864 volatile u32 temp_pcii_reg;
2865 int i, delay = 0;
2866
dcbad00e
WB		 2867 if (ioa_cfg->sis64)
2868 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2869 dest, length_in_words);
2870
1da177e4
LT		 2871 /* Write IOA interrupt reg starting LDUMP state */
2872 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2873 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2874
2875 /* Wait for IO debug acknowledge */
2876 if (ipr_wait_iodbg_ack(ioa_cfg,
2877 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2878 dev_err(&ioa_cfg->pdev->dev,
2879 "IOA dump long data transfer timeout\n");
2880 return -EIO;
2881 }
2882
2883 /* Signal LDUMP interlocked - clear IO debug ack */
2884 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2885 ioa_cfg->regs.clr_interrupt_reg);
2886
2887 /* Write Mailbox with starting address */
2888 writel(start_addr, ioa_cfg->ioa_mailbox);
2889
2890 /* Signal address valid - clear IOA Reset alert */
2891 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2892 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2893
2894 for (i = 0; i < length_in_words; i++) {
2895 /* Wait for IO debug acknowledge */
2896 if (ipr_wait_iodbg_ack(ioa_cfg,
2897 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2898 dev_err(&ioa_cfg->pdev->dev,
2899 "IOA dump short data transfer timeout\n");
2900 return -EIO;
2901 }
2902
2903 /* Read data from mailbox and increment destination pointer */
2904 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2905 dest++;
2906
2907 /* For all but the last word of data, signal data received */
2908 if (i < (length_in_words - 1)) {
2909 /* Signal dump data received - Clear IO debug Ack */
2910 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2911 ioa_cfg->regs.clr_interrupt_reg);
2912 }
2913 }
2914
2915 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2916 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2917 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2918
2919 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2920 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2921
2922 /* Signal dump data received - Clear IO debug Ack */
2923 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2924 ioa_cfg->regs.clr_interrupt_reg);
2925
2926 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2927 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2928 temp_pcii_reg =
214777ba 2929 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2930
2931 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2932 return 0;
2933
2934 udelay(10);
2935 delay += 10;
2936 }
2937
2938 return 0;
2939}
2940
2941#ifdef CONFIG_SCSI_IPR_DUMP
2942/**
2943 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2944 * @ioa_cfg: ioa config struct
2945 * @pci_address: adapter address
2946 * @length: length of data to copy
2947 *
2948 * Copy data from PCI adapter to kernel buffer.
2949 * Note: length MUST be a 4 byte multiple
2950 * Return value:
2951 * 0 on success / other on failure
2952 **/
2953static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2954 unsigned long pci_address, u32 length)
2955{
2956 int bytes_copied = 0;
4d4dd706 2957 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2958 __be32 *page;
2959 unsigned long lock_flags = 0;
2960 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2961
4d4dd706
KSS		 2962 if (ioa_cfg->sis64)
2963 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2964 else
2965 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2966
1da177e4 2967 while (bytes_copied < length &&
4d4dd706 2968 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2969 if (ioa_dump->page_offset >= PAGE_SIZE ||
2970 ioa_dump->page_offset == 0) {
2971 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2972
2973 if (!page) {
2974 ipr_trace;
2975 return bytes_copied;
2976 }
2977
2978 ioa_dump->page_offset = 0;
2979 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2980 ioa_dump->next_page_index++;
2981 } else
2982 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2983
2984 rem_len = length - bytes_copied;
2985 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2986 cur_len = min(rem_len, rem_page_len);
2987
2988 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2989 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2990 rc = -EIO;
2991 } else {
2992 rc = ipr_get_ldump_data_section(ioa_cfg,
2993 pci_address + bytes_copied,
2994 &page[ioa_dump->page_offset / 4],
2995 (cur_len / sizeof(u32)));
2996 }
2997 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2998
2999 if (!rc) {
3000 ioa_dump->page_offset += cur_len;
3001 bytes_copied += cur_len;
3002 } else {
3003 ipr_trace;
3004 break;
3005 }
3006 schedule();
3007 }
3008
3009 return bytes_copied;
3010}
3011
3012/**
3013 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
3014 * @hdr: dump entry header struct
3015 *
3016 * Return value:
3017 * nothing
3018 **/
3019static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
3020{
3021 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
3022 hdr->num_elems = 1;
3023 hdr->offset = sizeof(*hdr);
3024 hdr->status = IPR_DUMP_STATUS_SUCCESS;
3025}
3026
3027/**
3028 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
3029 * @ioa_cfg: ioa config struct
3030 * @driver_dump: driver dump struct
3031 *
3032 * Return value:
3033 * nothing
3034 **/
3035static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
3036 struct ipr_driver_dump *driver_dump)
3037{
3038 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3039
3040 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
3041 driver_dump->ioa_type_entry.hdr.len =
3042 sizeof(struct ipr_dump_ioa_type_entry) -
3043 sizeof(struct ipr_dump_entry_header);
3044 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3045 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
3046 driver_dump->ioa_type_entry.type = ioa_cfg->type;
3047 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
3048 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
3049 ucode_vpd->minor_release[1];
3050 driver_dump->hdr.num_entries++;
3051}
3052
3053/**
3054 * ipr_dump_version_data - Fill in the driver version in the dump.
3055 * @ioa_cfg: ioa config struct
3056 * @driver_dump: driver dump struct
3057 *
3058 * Return value:
3059 * nothing
3060 **/
3061static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
3062 struct ipr_driver_dump *driver_dump)
3063{
3064 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3065 driver_dump->version_entry.hdr.len =
3066 sizeof(struct ipr_dump_version_entry) -
3067 sizeof(struct ipr_dump_entry_header);
3068 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3069 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3070 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3071 driver_dump->hdr.num_entries++;
3072}
3073
3074/**
3075 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3076 * @ioa_cfg: ioa config struct
3077 * @driver_dump: driver dump struct
3078 *
3079 * Return value:
3080 * nothing
3081 **/
3082static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3083 struct ipr_driver_dump *driver_dump)
3084{
3085 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3086 driver_dump->trace_entry.hdr.len =
3087 sizeof(struct ipr_dump_trace_entry) -
3088 sizeof(struct ipr_dump_entry_header);
3089 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3090 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3091 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3092 driver_dump->hdr.num_entries++;
3093}
3094
3095/**
3096 * ipr_dump_location_data - Fill in the IOA location in the dump.
3097 * @ioa_cfg: ioa config struct
3098 * @driver_dump: driver dump struct
3099 *
3100 * Return value:
3101 * nothing
3102 **/
3103static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3104 struct ipr_driver_dump *driver_dump)
3105{
3106 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3107 driver_dump->location_entry.hdr.len =
3108 sizeof(struct ipr_dump_location_entry) -
3109 sizeof(struct ipr_dump_entry_header);
3110 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3111 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3112 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3113 driver_dump->hdr.num_entries++;
3114}
3115
3116/**
3117 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3118 * @ioa_cfg: ioa config struct
3119 * @dump: dump struct
3120 *
3121 * Return value:
3122 * nothing
3123 **/
3124static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3125{
3126 unsigned long start_addr, sdt_word;
3127 unsigned long lock_flags = 0;
3128 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3129 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3130 u32 num_entries, max_num_entries, start_off, end_off;
3131 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3132 struct ipr_sdt *sdt;
dcbad00e 3133 int valid = 1;
1da177e4
LT		 3134 int i;
3135
3136 ENTER;
3137
3138 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3139
41e9a696 3140 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3141 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3142 return;
3143 }
3144
110def85
WB		 3145 if (ioa_cfg->sis64) {
3146 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3147 ssleep(IPR_DUMP_DELAY_SECONDS);
3148 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3149 }
3150
1da177e4
LT		 3151 start_addr = readl(ioa_cfg->ioa_mailbox);
3152
dcbad00e 3153 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3154 dev_err(&ioa_cfg->pdev->dev,
3155 "Invalid dump table format: %lx\n", start_addr);
3156 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3157 return;
3158 }
3159
3160 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3161
3162 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3163
3164 /* Initialize the overall dump header */
3165 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3166 driver_dump->hdr.num_entries = 1;
3167 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3168 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3169 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3170 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3171
3172 ipr_dump_version_data(ioa_cfg, driver_dump);
3173 ipr_dump_location_data(ioa_cfg, driver_dump);
3174 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3175 ipr_dump_trace_data(ioa_cfg, driver_dump);
3176
3177 /* Update dump_header */
3178 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3179
3180 /* IOA Dump entry */
3181 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3182 ioa_dump->hdr.len = 0;
3183 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3184 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3185
3186 /* First entries in sdt are actually a list of dump addresses and
3187 lengths to gather the real dump data. sdt represents the pointer
3188 to the ioa generated dump table. Dump data will be extracted based
3189 on entries in this table */
3190 sdt = &ioa_dump->sdt;
3191
4d4dd706
KSS		 3192 if (ioa_cfg->sis64) {
3193 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3194 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3195 } else {
3196 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3197 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3198 }
3199
3200 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3201 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3202 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3203 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3204
3205 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3206 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3207 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3208 dev_err(&ioa_cfg->pdev->dev,
3209 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3210 rc, be32_to_cpu(sdt->hdr.state));
3211 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3212 ioa_cfg->sdt_state = DUMP_OBTAINED;
3213 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3214 return;
3215 }
3216
3217 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3218
4d4dd706
KSS		 3219 if (num_entries > max_num_entries)
3220 num_entries = max_num_entries;
3221
3222 /* Update dump length to the actual data to be copied */
3223 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3224 if (ioa_cfg->sis64)
3225 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3226 else
3227 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3228
3229 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3230
3231 for (i = 0; i < num_entries; i++) {
4d4dd706 3232 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3233 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3234 break;
3235 }
3236
3237 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3238 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3239 if (ioa_cfg->sis64)
3240 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3241 else {
3242 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3243 end_off = be32_to_cpu(sdt->entry[i].end_token);
3244
3245 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3246 bytes_to_copy = end_off - start_off;
3247 else
3248 valid = 0;
3249 }
3250 if (valid) {
4d4dd706 3251 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3252 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3253 continue;
3254 }
3255
3256 /* Copy data from adapter to driver buffers */
3257 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3258 bytes_to_copy);
3259
3260 ioa_dump->hdr.len += bytes_copied;
3261
3262 if (bytes_copied != bytes_to_copy) {
3263 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3264 break;
3265 }
3266 }
3267 }
3268 }
3269
3270 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3271
3272 /* Update dump_header */
3273 driver_dump->hdr.len += ioa_dump->hdr.len;
3274 wmb();
3275 ioa_cfg->sdt_state = DUMP_OBTAINED;
3276 LEAVE;
3277}
3278
3279#else
203fa3fe 3280#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3281#endif
3282
3283/**
3284 * ipr_release_dump - Free adapter dump memory
3285 * @kref: kref struct
3286 *
3287 * Return value:
3288 * nothing
3289 **/
3290static void ipr_release_dump(struct kref *kref)
3291{
203fa3fe 3292 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3293 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3294 unsigned long lock_flags = 0;
3295 int i;
3296
3297 ENTER;
3298 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3299 ioa_cfg->dump = NULL;
3300 ioa_cfg->sdt_state = INACTIVE;
3301 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3302
3303 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3304 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3305
4d4dd706 3306 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3307 kfree(dump);
3308 LEAVE;
3309}
3310
3311/**
3312 * ipr_worker_thread - Worker thread
c4028958 3313 * @work: ioa config struct
1da177e4
LT		 3314 *
3315 * Called at task level from a work thread. This function takes care
3316 * of adding and removing device from the mid-layer as configuration
3317 * changes are detected by the adapter.
3318 *
3319 * Return value:
3320 * nothing
3321 **/
c4028958 3322static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3323{
3324 unsigned long lock_flags;
3325 struct ipr_resource_entry *res;
3326 struct scsi_device *sdev;
3327 struct ipr_dump *dump;
c4028958
DH		 3328 struct ipr_ioa_cfg *ioa_cfg =
3329 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3330 u8 bus, target, lun;
3331 int did_work;
3332
3333 ENTER;
3334 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3335
41e9a696 3336 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3337 dump = ioa_cfg->dump;
3338 if (!dump) {
3339 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3340 return;
3341 }
3342 kref_get(&dump->kref);
3343 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3344 ipr_get_ioa_dump(ioa_cfg, dump);
3345 kref_put(&dump->kref, ipr_release_dump);
3346
3347 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3348 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3349 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3350 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3351 return;
3352 }
3353
b0e17a9b
BK		 3354 if (ioa_cfg->scsi_unblock) {
3355 ioa_cfg->scsi_unblock = 0;
3356 ioa_cfg->scsi_blocked = 0;
3357 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3358 scsi_unblock_requests(ioa_cfg->host);
3359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3360 if (ioa_cfg->scsi_blocked)
3361 scsi_block_requests(ioa_cfg->host);
3362 }
3363
b195d5e2
BK		 3364 if (!ioa_cfg->scan_enabled) {
3365 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3366 return;
3367 }
3368
1da177e4
LT		 3369restart:
3370 do {
3371 did_work = 0;
f688f96d 3372 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4
LT		 3373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3374 return;
3375 }
3376
3377 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3378 if (res->del_from_ml && res->sdev) {
3379 did_work = 1;
3380 sdev = res->sdev;
3381 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3382 if (!res->add_to_ml)
3383 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3384 else
3385 res->del_from_ml = 0;
1da177e4
LT		 3386 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3387 scsi_remove_device(sdev);
3388 scsi_device_put(sdev);
3389 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3390 }
3391 break;
3392 }
3393 }
203fa3fe 3394 } while (did_work);
1da177e4
LT		 3395
3396 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3397 if (res->add_to_ml) {
3e7ebdfa
WB		 3398 bus = res->bus;
3399 target = res->target;
3400 lun = res->lun;
1121b794 3401 res->add_to_ml = 0;
1da177e4
LT		 3402 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3403 scsi_add_device(ioa_cfg->host, bus, target, lun);
3404 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3405 goto restart;
3406 }
3407 }
3408
f688f96d 3409 ioa_cfg->scan_done = 1;
1da177e4 3410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3411 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3412 LEAVE;
3413}
3414
3415#ifdef CONFIG_SCSI_IPR_TRACE
3416/**
3417 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3418 * @filp: open sysfs file
1da177e4 3419 * @kobj: kobject struct
91a69029 3420 * @bin_attr: bin_attribute struct
1da177e4
LT		 3421 * @buf: buffer
3422 * @off: offset
3423 * @count: buffer size
3424 *
3425 * Return value:
3426 * number of bytes printed to buffer
3427 **/
2c3c8bea 3428static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3429 struct bin_attribute *bin_attr,
3430 char *buf, loff_t off, size_t count)
1da177e4 3431{
ee959b00
TJ		 3432 struct device *dev = container_of(kobj, struct device, kobj);
3433 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3434 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3435 unsigned long lock_flags = 0;
d777aaf3 3436 ssize_t ret;
1da177e4
LT		 3437
3438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3439 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3440 IPR_TRACE_SIZE);
1da177e4 3441 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3442
3443 return ret;
1da177e4
LT		 3444}
3445
3446static struct bin_attribute ipr_trace_attr = {
3447 .attr = {
3448 .name = "trace",
3449 .mode = S_IRUGO,
3450 },
3451 .size = 0,
3452 .read = ipr_read_trace,
3453};
3454#endif
3455
3456/**
3457 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3458 * @dev: class device struct
3459 * @buf: buffer
1da177e4
LT		 3460 *
3461 * Return value:
3462 * number of bytes printed to buffer
3463 **/
ee959b00
TJ		 3464static ssize_t ipr_show_fw_version(struct device *dev,
3465 struct device_attribute *attr, char *buf)
1da177e4 3466{
ee959b00 3467 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3468 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3469 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3470 unsigned long lock_flags = 0;
3471 int len;
3472
3473 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3474 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3475 ucode_vpd->major_release, ucode_vpd->card_type,
3476 ucode_vpd->minor_release[0],
3477 ucode_vpd->minor_release[1]);
3478 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3479 return len;
3480}
3481
ee959b00 3482static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3483 .attr = {
3484 .name = "fw_version",
3485 .mode = S_IRUGO,
3486 },
3487 .show = ipr_show_fw_version,
3488};
3489
3490/**
3491 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3492 * @dev: class device struct
3493 * @buf: buffer
1da177e4
LT		 3494 *
3495 * Return value:
3496 * number of bytes printed to buffer
3497 **/
ee959b00
TJ		 3498static ssize_t ipr_show_log_level(struct device *dev,
3499 struct device_attribute *attr, char *buf)
1da177e4 3500{
ee959b00 3501 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3502 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3503 unsigned long lock_flags = 0;
3504 int len;
3505
3506 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3507 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3508 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3509 return len;
3510}
3511
3512/**
3513 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3514 * @dev: class device struct
3515 * @buf: buffer
1da177e4
LT		 3516 *
3517 * Return value:
3518 * number of bytes printed to buffer
3519 **/
ee959b00 3520static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3521 struct device_attribute *attr,
1da177e4
LT		 3522 const char *buf, size_t count)
3523{
ee959b00 3524 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3525 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3526 unsigned long lock_flags = 0;
3527
3528 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3529 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3530 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3531 return strlen(buf);
3532}
3533
ee959b00 3534static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3535 .attr = {
3536 .name = "log_level",
3537 .mode = S_IRUGO | S_IWUSR,
3538 },
3539 .show = ipr_show_log_level,
3540 .store = ipr_store_log_level
3541};
3542
3543/**
3544 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3545 * @dev: device struct
3546 * @buf: buffer
3547 * @count: buffer size
1da177e4
LT		 3548 *
3549 * This function will reset the adapter and wait a reasonable
3550 * amount of time for any errors that the adapter might log.
3551 *
3552 * Return value:
3553 * count on success / other on failure
3554 **/
ee959b00
TJ		 3555static ssize_t ipr_store_diagnostics(struct device *dev,
3556 struct device_attribute *attr,
1da177e4
LT		 3557 const char *buf, size_t count)
3558{
ee959b00 3559 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3560 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3561 unsigned long lock_flags = 0;
3562 int rc = count;
3563
3564 if (!capable(CAP_SYS_ADMIN))
3565 return -EACCES;
3566
1da177e4 3567 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3568 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3569 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3570 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3571 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3572 }
3573
1da177e4
LT		 3574 ioa_cfg->errors_logged = 0;
3575 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3576
3577 if (ioa_cfg->in_reset_reload) {
3578 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3579 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3580
3581 /* Wait for a second for any errors to be logged */
3582 msleep(1000);
3583 } else {
3584 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3585 return -EIO;
3586 }
3587
3588 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3589 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3590 rc = -EIO;
3591 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3592
3593 return rc;
3594}
3595
ee959b00 3596static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3597 .attr = {
3598 .name = "run_diagnostics",
3599 .mode = S_IWUSR,
3600 },
3601 .store = ipr_store_diagnostics
3602};
3603
f37eb54b
BK		 3604/**
3605 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3606 * @class_dev: device struct
3607 * @buf: buffer
f37eb54b
BK		 3608 *
3609 * Return value:
3610 * number of bytes printed to buffer
3611 **/
ee959b00
TJ		 3612static ssize_t ipr_show_adapter_state(struct device *dev,
3613 struct device_attribute *attr, char *buf)
f37eb54b 3614{
ee959b00 3615 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3616 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3617 unsigned long lock_flags = 0;
3618 int len;
3619
3620 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3621 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b
BK		 3622 len = snprintf(buf, PAGE_SIZE, "offline\n");
3623 else
3624 len = snprintf(buf, PAGE_SIZE, "online\n");
3625 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3626 return len;
3627}
3628
3629/**
3630 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3631 * @dev: device struct
3632 * @buf: buffer
3633 * @count: buffer size
f37eb54b
BK		 3634 *
3635 * This function will change the adapter's state.
3636 *
3637 * Return value:
3638 * count on success / other on failure
3639 **/
ee959b00
TJ		 3640static ssize_t ipr_store_adapter_state(struct device *dev,
3641 struct device_attribute *attr,
f37eb54b
BK		 3642 const char *buf, size_t count)
3643{
ee959b00 3644 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3645 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3646 unsigned long lock_flags;
56d6aa33 3647 int result = count, i;
f37eb54b
BK		 3648
3649 if (!capable(CAP_SYS_ADMIN))
3650 return -EACCES;
3651
3652 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3653 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3654 !strncmp(buf, "online", 6)) {
3655 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3656 spin_lock(&ioa_cfg->hrrq[i]._lock);
3657 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3658 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3659 }
3660 wmb();
f37eb54b
BK		 3661 ioa_cfg->reset_retries = 0;
3662 ioa_cfg->in_ioa_bringdown = 0;
3663 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3664 }
3665 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3666 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3667
3668 return result;
3669}
3670
ee959b00 3671static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3672 .attr = {
49dd0961 3673 .name = "online_state",
f37eb54b
BK		 3674 .mode = S_IRUGO | S_IWUSR,
3675 },
3676 .show = ipr_show_adapter_state,
3677 .store = ipr_store_adapter_state
3678};
3679
1da177e4
LT		 3680/**
3681 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3682 * @dev: device struct
3683 * @buf: buffer
3684 * @count: buffer size
1da177e4
LT		 3685 *
3686 * This function will reset the adapter.
3687 *
3688 * Return value:
3689 * count on success / other on failure
3690 **/
ee959b00
TJ		 3691static ssize_t ipr_store_reset_adapter(struct device *dev,
3692 struct device_attribute *attr,
1da177e4
LT		 3693 const char *buf, size_t count)
3694{
ee959b00 3695 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3696 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3697 unsigned long lock_flags;
3698 int result = count;
3699
3700 if (!capable(CAP_SYS_ADMIN))
3701 return -EACCES;
3702
3703 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3704 if (!ioa_cfg->in_reset_reload)
3705 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3706 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3707 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3708
3709 return result;
3710}
3711
ee959b00 3712static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3713 .attr = {
3714 .name = "reset_host",
3715 .mode = S_IWUSR,
3716 },
3717 .store = ipr_store_reset_adapter
3718};
3719
511cbce2 3720static int ipr_iopoll(struct irq_poll *iop, int budget);
b53d124a 3721 /**
3722 * ipr_show_iopoll_weight - Show ipr polling mode
3723 * @dev: class device struct
3724 * @buf: buffer
3725 *
3726 * Return value:
3727 * number of bytes printed to buffer
3728 **/
3729static ssize_t ipr_show_iopoll_weight(struct device *dev,
3730 struct device_attribute *attr, char *buf)
3731{
3732 struct Scsi_Host *shost = class_to_shost(dev);
3733 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3734 unsigned long lock_flags = 0;
3735 int len;
3736
3737 spin_lock_irqsave(shost->host_lock, lock_flags);
3738 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3739 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3740
3741 return len;
3742}
3743
3744/**
3745 * ipr_store_iopoll_weight - Change the adapter's polling mode
3746 * @dev: class device struct
3747 * @buf: buffer
3748 *
3749 * Return value:
3750 * number of bytes printed to buffer
3751 **/
3752static ssize_t ipr_store_iopoll_weight(struct device *dev,
3753 struct device_attribute *attr,
3754 const char *buf, size_t count)
3755{
3756 struct Scsi_Host *shost = class_to_shost(dev);
3757 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3758 unsigned long user_iopoll_weight;
3759 unsigned long lock_flags = 0;
3760 int i;
3761
3762 if (!ioa_cfg->sis64) {
511cbce2 3763 dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n");
b53d124a 3764 return -EINVAL;
3765 }
3766 if (kstrtoul(buf, 10, &user_iopoll_weight))
3767 return -EINVAL;
3768
3769 if (user_iopoll_weight > 256) {
511cbce2 3770 dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n");
b53d124a 3771 return -EINVAL;
3772 }
3773
3774 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
511cbce2 3775 dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n");
b53d124a 3776 return strlen(buf);
3777 }
3778
89f8b33c 3779 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3780 for (i = 1; i < ioa_cfg->hrrq_num; i++)
511cbce2 3781 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
b53d124a 3782 }
3783
3784 spin_lock_irqsave(shost->host_lock, lock_flags);
3785 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3786 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3787 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
511cbce2 3788 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
b53d124a 3789 ioa_cfg->iopoll_weight, ipr_iopoll);
b53d124a 3790 }
3791 }
3792 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3793
3794 return strlen(buf);
3795}
3796
3797static struct device_attribute ipr_iopoll_weight_attr = {
3798 .attr = {
3799 .name = "iopoll_weight",
3800 .mode = S_IRUGO | S_IWUSR,
3801 },
3802 .show = ipr_show_iopoll_weight,
3803 .store = ipr_store_iopoll_weight
3804};
3805
1da177e4
LT		 3806/**
3807 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3808 * @buf_len: buffer length
3809 *
3810 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3811 * list to use for microcode download
3812 *
3813 * Return value:
3814 * pointer to sglist / NULL on failure
3815 **/
3816static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3817{
3818 int sg_size, order, bsize_elem, num_elem, i, j;
3819 struct ipr_sglist *sglist;
3820 struct scatterlist *scatterlist;
3821 struct page *page;
3822
3823 /* Get the minimum size per scatter/gather element */
3824 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3825
3826 /* Get the actual size per element */
3827 order = get_order(sg_size);
3828
3829 /* Determine the actual number of bytes per element */
3830 bsize_elem = PAGE_SIZE * (1 << order);
3831
3832 /* Determine the actual number of sg entries needed */
3833 if (buf_len % bsize_elem)
3834 num_elem = (buf_len / bsize_elem) + 1;
3835 else
3836 num_elem = buf_len / bsize_elem;
3837
3838 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3839 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3840 (sizeof(struct scatterlist) * (num_elem - 1)),
3841 GFP_KERNEL);
3842
3843 if (sglist == NULL) {
3844 ipr_trace;
3845 return NULL;
3846 }
3847
1da177e4 3848 scatterlist = sglist->scatterlist;
45711f1a 3849 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3850
3851 sglist->order = order;
3852 sglist->num_sg = num_elem;
3853
3854 /* Allocate a bunch of sg elements */
3855 for (i = 0; i < num_elem; i++) {
3856 page = alloc_pages(GFP_KERNEL, order);
3857 if (!page) {
3858 ipr_trace;
3859
3860 /* Free up what we already allocated */
3861 for (j = i - 1; j >= 0; j--)
45711f1a 3862 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3863 kfree(sglist);
3864 return NULL;
3865 }
3866
642f1490 3867 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3868 }
3869
3870 return sglist;
3871}
3872
3873/**
3874 * ipr_free_ucode_buffer - Frees a microcode download buffer
3875 * @p_dnld: scatter/gather list pointer
3876 *
3877 * Free a DMA'able ucode download buffer previously allocated with
3878 * ipr_alloc_ucode_buffer
3879 *
3880 * Return value:
3881 * nothing
3882 **/
3883static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3884{
3885 int i;
3886
3887 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3888 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3889
3890 kfree(sglist);
3891}
3892
3893/**
3894 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3895 * @sglist: scatter/gather list pointer
3896 * @buffer: buffer pointer
3897 * @len: buffer length
3898 *
3899 * Copy a microcode image from a user buffer into a buffer allocated by
3900 * ipr_alloc_ucode_buffer
3901 *
3902 * Return value:
3903 * 0 on success / other on failure
3904 **/
3905static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3906 u8 *buffer, u32 len)
3907{
3908 int bsize_elem, i, result = 0;
3909 struct scatterlist *scatterlist;
3910 void *kaddr;
3911
3912 /* Determine the actual number of bytes per element */
3913 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3914
3915 scatterlist = sglist->scatterlist;
3916
3917 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3918 struct page *page = sg_page(&scatterlist[i]);
3919
3920 kaddr = kmap(page);
1da177e4 3921 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3922 kunmap(page);
1da177e4
LT		 3923
3924 scatterlist[i].length = bsize_elem;
3925
3926 if (result != 0) {
3927 ipr_trace;
3928 return result;
3929 }
3930 }
3931
3932 if (len % bsize_elem) {
45711f1a
JA		 3933 struct page *page = sg_page(&scatterlist[i]);
3934
3935 kaddr = kmap(page);
1da177e4 3936 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3937 kunmap(page);
1da177e4
LT		 3938
3939 scatterlist[i].length = len % bsize_elem;
3940 }
3941
3942 sglist->buffer_len = len;
3943 return result;
3944}
3945
a32c055f
WB		 3946/**
3947 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3948 * @ipr_cmd: ipr command struct
3949 * @sglist: scatter/gather list
3950 *
3951 * Builds a microcode download IOA data list (IOADL).
3952 *
3953 **/
3954static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3955 struct ipr_sglist *sglist)
3956{
3957 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3958 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3959 struct scatterlist *scatterlist = sglist->scatterlist;
3960 int i;
3961
3962 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3963 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3964 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3965
3966 ioarcb->ioadl_len =
3967 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3968 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3969 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3970 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3971 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3972 }
3973
3974 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3975}
3976
1da177e4 3977/**
12baa420 3978 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3979 * @ipr_cmd: ipr command struct
3980 * @sglist: scatter/gather list
1da177e4 3981 *
12baa420 3982 * Builds a microcode download IOA data list (IOADL).
1da177e4 3983 *
1da177e4 3984 **/
12baa420
BK		 3985static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3986 struct ipr_sglist *sglist)
1da177e4 3987{
1da177e4 3988 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3989 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3990 struct scatterlist *scatterlist = sglist->scatterlist;
3991 int i;
3992
12baa420 3993 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3994 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3995 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3996
3997 ioarcb->ioadl_len =
1da177e4
LT		 3998 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3999
4000 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
4001 ioadl[i].flags_and_data_len =
4002 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
4003 ioadl[i].address =
4004 cpu_to_be32(sg_dma_address(&scatterlist[i]));
4005 }
4006
12baa420
BK		 4007 ioadl[i-1].flags_and_data_len |=
4008 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4009}
4010
4011/**
4012 * ipr_update_ioa_ucode - Update IOA's microcode
4013 * @ioa_cfg: ioa config struct
4014 * @sglist: scatter/gather list
4015 *
4016 * Initiate an adapter reset to update the IOA's microcode
4017 *
4018 * Return value:
4019 * 0 on success / -EIO on failure
4020 **/
4021static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
4022 struct ipr_sglist *sglist)
4023{
4024 unsigned long lock_flags;
4025
4026 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 4027 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 4028 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4029 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4030 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4031 }
12baa420
BK		 4032
4033 if (ioa_cfg->ucode_sglist) {
4034 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4035 dev_err(&ioa_cfg->pdev->dev,
4036 "Microcode download already in progress\n");
4037 return -EIO;
1da177e4 4038 }
12baa420 4039
d73341bf
AB		 4040 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
4041 sglist->scatterlist, sglist->num_sg,
4042 DMA_TO_DEVICE);
12baa420
BK		 4043
4044 if (!sglist->num_dma_sg) {
4045 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4046 dev_err(&ioa_cfg->pdev->dev,
4047 "Failed to map microcode download buffer!\n");
1da177e4
LT		 4048 return -EIO;
4049 }
4050
12baa420
BK		 4051 ioa_cfg->ucode_sglist = sglist;
4052 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
4053 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4054 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4055
4056 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4057 ioa_cfg->ucode_sglist = NULL;
4058 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 4059 return 0;
4060}
4061
4062/**
4063 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 4064 * @class_dev: device struct
4065 * @buf: buffer
4066 * @count: buffer size
1da177e4
LT		 4067 *
4068 * This function will update the firmware on the adapter.
4069 *
4070 * Return value:
4071 * count on success / other on failure
4072 **/
ee959b00
TJ		 4073static ssize_t ipr_store_update_fw(struct device *dev,
4074 struct device_attribute *attr,
4075 const char *buf, size_t count)
1da177e4 4076{
ee959b00 4077 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 4078 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4079 struct ipr_ucode_image_header *image_hdr;
4080 const struct firmware *fw_entry;
4081 struct ipr_sglist *sglist;
1da177e4
LT		 4082 char fname[100];
4083 char *src;
21b81716 4084 char *endline;
d63c7dd5 4085 int result, dnld_size;
1da177e4
LT		 4086
4087 if (!capable(CAP_SYS_ADMIN))
4088 return -EACCES;
4089
d63c7dd5 4090 snprintf(fname, sizeof(fname), "%s", buf);
1da177e4 4091
21b81716
GKB		 4092 endline = strchr(fname, '\n');
4093 if (endline)
4094 *endline = '\0';
4095
203fa3fe 4096 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 4097 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4098 return -EIO;
4099 }
4100
4101 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4102
1da177e4
LT		 4103 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4104 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4105 sglist = ipr_alloc_ucode_buffer(dnld_size);
4106
4107 if (!sglist) {
4108 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4109 release_firmware(fw_entry);
4110 return -ENOMEM;
4111 }
4112
4113 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4114
4115 if (result) {
4116 dev_err(&ioa_cfg->pdev->dev,
4117 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4118 goto out;
1da177e4
LT		 4119 }
4120
14ed9cc7
WB		 4121 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4122
12baa420 4123 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4124
12baa420
BK		 4125 if (!result)
4126 result = count;
4127out:
1da177e4
LT		 4128 ipr_free_ucode_buffer(sglist);
4129 release_firmware(fw_entry);
12baa420 4130 return result;
1da177e4
LT		 4131}
4132
ee959b00 4133static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4134 .attr = {
4135 .name = "update_fw",
4136 .mode = S_IWUSR,
4137 },
4138 .store = ipr_store_update_fw
4139};
4140
75576bb9
WB		 4141/**
4142 * ipr_show_fw_type - Show the adapter's firmware type.
4143 * @dev: class device struct
4144 * @buf: buffer
4145 *
4146 * Return value:
4147 * number of bytes printed to buffer
4148 **/
4149static ssize_t ipr_show_fw_type(struct device *dev,
4150 struct device_attribute *attr, char *buf)
4151{
4152 struct Scsi_Host *shost = class_to_shost(dev);
4153 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4154 unsigned long lock_flags = 0;
4155 int len;
4156
4157 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4158 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4160 return len;
4161}
4162
4163static struct device_attribute ipr_ioa_fw_type_attr = {
4164 .attr = {
4165 .name = "fw_type",
4166 .mode = S_IRUGO,
4167 },
4168 .show = ipr_show_fw_type
4169};
4170
afc3f83c
BK		 4171static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj,
4172 struct bin_attribute *bin_attr, char *buf,
4173 loff_t off, size_t count)
4174{
4175 struct device *cdev = container_of(kobj, struct device, kobj);
4176 struct Scsi_Host *shost = class_to_shost(cdev);
4177 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4178 struct ipr_hostrcb *hostrcb;
4179 unsigned long lock_flags = 0;
4180 int ret;
4181
4182 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4183 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4184 struct ipr_hostrcb, queue);
4185 if (!hostrcb) {
4186 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4187 return 0;
4188 }
4189 ret = memory_read_from_buffer(buf, count, &off, &hostrcb->hcam,
4190 sizeof(hostrcb->hcam));
4191 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4192 return ret;
4193}
4194
4195static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj,
4196 struct bin_attribute *bin_attr, char *buf,
4197 loff_t off, size_t count)
4198{
4199 struct device *cdev = container_of(kobj, struct device, kobj);
4200 struct Scsi_Host *shost = class_to_shost(cdev);
4201 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4202 struct ipr_hostrcb *hostrcb;
4203 unsigned long lock_flags = 0;
4204
4205 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4206 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4207 struct ipr_hostrcb, queue);
4208 if (!hostrcb) {
4209 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4210 return count;
4211 }
4212
4213 /* Reclaim hostrcb before exit */
4214 list_move_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
4215 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4216 return count;
4217}
4218
4219static struct bin_attribute ipr_ioa_async_err_log = {
4220 .attr = {
4221 .name = "async_err_log",
4222 .mode = S_IRUGO | S_IWUSR,
4223 },
4224 .size = 0,
4225 .read = ipr_read_async_err_log,
4226 .write = ipr_next_async_err_log
4227};
4228
ee959b00 4229static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4230 &ipr_fw_version_attr,
4231 &ipr_log_level_attr,
4232 &ipr_diagnostics_attr,
f37eb54b 4233 &ipr_ioa_state_attr,
1da177e4
LT		 4234 &ipr_ioa_reset_attr,
4235 &ipr_update_fw_attr,
75576bb9 4236 &ipr_ioa_fw_type_attr,
b53d124a 4237 &ipr_iopoll_weight_attr,
1da177e4
LT		 4238 NULL,
4239};
4240
4241#ifdef CONFIG_SCSI_IPR_DUMP
4242/**
4243 * ipr_read_dump - Dump the adapter
2c3c8bea 4244 * @filp: open sysfs file
1da177e4 4245 * @kobj: kobject struct
91a69029 4246 * @bin_attr: bin_attribute struct
1da177e4
LT		 4247 * @buf: buffer
4248 * @off: offset
4249 * @count: buffer size
4250 *
4251 * Return value:
4252 * number of bytes printed to buffer
4253 **/
2c3c8bea 4254static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4255 struct bin_attribute *bin_attr,
4256 char *buf, loff_t off, size_t count)
1da177e4 4257{
ee959b00 4258 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4259 struct Scsi_Host *shost = class_to_shost(cdev);
4260 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4261 struct ipr_dump *dump;
4262 unsigned long lock_flags = 0;
4263 char *src;
4d4dd706 4264 int len, sdt_end;
1da177e4
LT		 4265 size_t rc = count;
4266
4267 if (!capable(CAP_SYS_ADMIN))
4268 return -EACCES;
4269
4270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4271 dump = ioa_cfg->dump;
4272
4273 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4275 return 0;
4276 }
4277 kref_get(&dump->kref);
4278 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4279
4280 if (off > dump->driver_dump.hdr.len) {
4281 kref_put(&dump->kref, ipr_release_dump);
4282 return 0;
4283 }
4284
4285 if (off + count > dump->driver_dump.hdr.len) {
4286 count = dump->driver_dump.hdr.len - off;
4287 rc = count;
4288 }
4289
4290 if (count && off < sizeof(dump->driver_dump)) {
4291 if (off + count > sizeof(dump->driver_dump))
4292 len = sizeof(dump->driver_dump) - off;
4293 else
4294 len = count;
4295 src = (u8 *)&dump->driver_dump + off;
4296 memcpy(buf, src, len);
4297 buf += len;
4298 off += len;
4299 count -= len;
4300 }
4301
4302 off -= sizeof(dump->driver_dump);
4303
4d4dd706
KSS		 4304 if (ioa_cfg->sis64)
4305 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4306 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4307 sizeof(struct ipr_sdt_entry));
4308 else
4309 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4310 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4311
4312 if (count && off < sdt_end) {
4313 if (off + count > sdt_end)
4314 len = sdt_end - off;
1da177e4
LT		 4315 else
4316 len = count;
4317 src = (u8 *)&dump->ioa_dump + off;
4318 memcpy(buf, src, len);
4319 buf += len;
4320 off += len;
4321 count -= len;
4322 }
4323
4d4dd706 4324 off -= sdt_end;
1da177e4
LT		 4325
4326 while (count) {
4327 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4328 len = PAGE_ALIGN(off) - off;
4329 else
4330 len = count;
4331 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4332 src += off & ~PAGE_MASK;
4333 memcpy(buf, src, len);
4334 buf += len;
4335 off += len;
4336 count -= len;
4337 }
4338
4339 kref_put(&dump->kref, ipr_release_dump);
4340 return rc;
4341}
4342
4343/**
4344 * ipr_alloc_dump - Prepare for adapter dump
4345 * @ioa_cfg: ioa config struct
4346 *
4347 * Return value:
4348 * 0 on success / other on failure
4349 **/
4350static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4351{
4352 struct ipr_dump *dump;
4d4dd706 4353 __be32 **ioa_data;
1da177e4
LT		 4354 unsigned long lock_flags = 0;
4355
0bc42e35 4356 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4357
4358 if (!dump) {
4359 ipr_err("Dump memory allocation failed\n");
4360 return -ENOMEM;
4361 }
4362
4d4dd706
KSS		 4363 if (ioa_cfg->sis64)
4364 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4365 else
4366 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4367
4368 if (!ioa_data) {
4369 ipr_err("Dump memory allocation failed\n");
4370 kfree(dump);
4371 return -ENOMEM;
4372 }
4373
4374 dump->ioa_dump.ioa_data = ioa_data;
4375
1da177e4
LT		 4376 kref_init(&dump->kref);
4377 dump->ioa_cfg = ioa_cfg;
4378
4379 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4380
4381 if (INACTIVE != ioa_cfg->sdt_state) {
4382 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4383 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4384 kfree(dump);
4385 return 0;
4386 }
4387
4388 ioa_cfg->dump = dump;
4389 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4390 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4391 ioa_cfg->dump_taken = 1;
4392 schedule_work(&ioa_cfg->work_q);
4393 }
4394 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4395
1da177e4
LT		 4396 return 0;
4397}
4398
4399/**
4400 * ipr_free_dump - Free adapter dump memory
4401 * @ioa_cfg: ioa config struct
4402 *
4403 * Return value:
4404 * 0 on success / other on failure
4405 **/
4406static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4407{
4408 struct ipr_dump *dump;
4409 unsigned long lock_flags = 0;
4410
4411 ENTER;
4412
4413 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4414 dump = ioa_cfg->dump;
4415 if (!dump) {
4416 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4417 return 0;
4418 }
4419
4420 ioa_cfg->dump = NULL;
4421 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4422
4423 kref_put(&dump->kref, ipr_release_dump);
4424
4425 LEAVE;
4426 return 0;
4427}
4428
4429/**
4430 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4431 * @filp: open sysfs file
1da177e4 4432 * @kobj: kobject struct
91a69029 4433 * @bin_attr: bin_attribute struct
1da177e4
LT		 4434 * @buf: buffer
4435 * @off: offset
4436 * @count: buffer size
4437 *
4438 * Return value:
4439 * number of bytes printed to buffer
4440 **/
2c3c8bea 4441static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4442 struct bin_attribute *bin_attr,
4443 char *buf, loff_t off, size_t count)
1da177e4 4444{
ee959b00 4445 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4446 struct Scsi_Host *shost = class_to_shost(cdev);
4447 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4448 int rc;
4449
4450 if (!capable(CAP_SYS_ADMIN))
4451 return -EACCES;
4452
4453 if (buf[0] == '1')
4454 rc = ipr_alloc_dump(ioa_cfg);
4455 else if (buf[0] == '0')
4456 rc = ipr_free_dump(ioa_cfg);
4457 else
4458 return -EINVAL;
4459
4460 if (rc)
4461 return rc;
4462 else
4463 return count;
4464}
4465
4466static struct bin_attribute ipr_dump_attr = {
4467 .attr = {
4468 .name = "dump",
4469 .mode = S_IRUSR | S_IWUSR,
4470 },
4471 .size = 0,
4472 .read = ipr_read_dump,
4473 .write = ipr_write_dump
4474};
4475#else
4476static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4477#endif
4478
4479/**
4480 * ipr_change_queue_depth - Change the device's queue depth
4481 * @sdev: scsi device struct
4482 * @qdepth: depth to set
e881a172 4483 * @reason: calling context
1da177e4
LT		 4484 *
4485 * Return value:
4486 * actual depth set
4487 **/
db5ed4df 4488static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 4489{
35a39691
BK		 4490 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4491 struct ipr_resource_entry *res;
4492 unsigned long lock_flags = 0;
4493
4494 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4495 res = (struct ipr_resource_entry *)sdev->hostdata;
4496
4497 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4498 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4500
db5ed4df 4501 scsi_change_queue_depth(sdev, qdepth);
1da177e4
LT		 4502 return sdev->queue_depth;
4503}
4504
1da177e4
LT		 4505/**
4506 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4507 * @dev: device struct
46d74563 4508 * @attr: device attribute structure
1da177e4
LT		 4509 * @buf: buffer
4510 *
4511 * Return value:
4512 * number of bytes printed to buffer
4513 **/
10523b3b 4514static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4515{
4516 struct scsi_device *sdev = to_scsi_device(dev);
4517 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4518 struct ipr_resource_entry *res;
4519 unsigned long lock_flags = 0;
4520 ssize_t len = -ENXIO;
4521
4522 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4523 res = (struct ipr_resource_entry *)sdev->hostdata;
4524 if (res)
3e7ebdfa 4525 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4526 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4527 return len;
4528}
4529
4530static struct device_attribute ipr_adapter_handle_attr = {
4531 .attr = {
4532 .name = "adapter_handle",
4533 .mode = S_IRUSR,
4534 },
4535 .show = ipr_show_adapter_handle
4536};
4537
3e7ebdfa 4538/**
5adcbeb3
WB		 4539 * ipr_show_resource_path - Show the resource path or the resource address for
4540 * this device.
3e7ebdfa 4541 * @dev: device struct
46d74563 4542 * @attr: device attribute structure
3e7ebdfa
WB		 4543 * @buf: buffer
4544 *
4545 * Return value:
4546 * number of bytes printed to buffer
4547 **/
4548static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4549{
4550 struct scsi_device *sdev = to_scsi_device(dev);
4551 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4552 struct ipr_resource_entry *res;
4553 unsigned long lock_flags = 0;
4554 ssize_t len = -ENXIO;
4555 char buffer[IPR_MAX_RES_PATH_LENGTH];
4556
4557 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4558 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4559 if (res && ioa_cfg->sis64)
3e7ebdfa 4560 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4561 __ipr_format_res_path(res->res_path, buffer,
4562 sizeof(buffer)));
5adcbeb3
WB		 4563 else if (res)
4564 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4565 res->bus, res->target, res->lun);
4566
3e7ebdfa
WB		 4567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4568 return len;
4569}
4570
4571static struct device_attribute ipr_resource_path_attr = {
4572 .attr = {
4573 .name = "resource_path",
75576bb9 4574 .mode = S_IRUGO,
3e7ebdfa
WB		 4575 },
4576 .show = ipr_show_resource_path
4577};
4578
46d74563
WB		 4579/**
4580 * ipr_show_device_id - Show the device_id for this device.
4581 * @dev: device struct
4582 * @attr: device attribute structure
4583 * @buf: buffer
4584 *
4585 * Return value:
4586 * number of bytes printed to buffer
4587 **/
4588static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4589{
4590 struct scsi_device *sdev = to_scsi_device(dev);
4591 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4592 struct ipr_resource_entry *res;
4593 unsigned long lock_flags = 0;
4594 ssize_t len = -ENXIO;
4595
4596 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4597 res = (struct ipr_resource_entry *)sdev->hostdata;
4598 if (res && ioa_cfg->sis64)
bb8647e8 4599 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
46d74563
WB		 4600 else if (res)
4601 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4602
4603 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4604 return len;
4605}
4606
4607static struct device_attribute ipr_device_id_attr = {
4608 .attr = {
4609 .name = "device_id",
4610 .mode = S_IRUGO,
4611 },
4612 .show = ipr_show_device_id
4613};
4614
75576bb9
WB		 4615/**
4616 * ipr_show_resource_type - Show the resource type for this device.
4617 * @dev: device struct
46d74563 4618 * @attr: device attribute structure
75576bb9
WB		 4619 * @buf: buffer
4620 *
4621 * Return value:
4622 * number of bytes printed to buffer
4623 **/
4624static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4625{
4626 struct scsi_device *sdev = to_scsi_device(dev);
4627 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4628 struct ipr_resource_entry *res;
4629 unsigned long lock_flags = 0;
4630 ssize_t len = -ENXIO;
4631
4632 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4633 res = (struct ipr_resource_entry *)sdev->hostdata;
4634
4635 if (res)
4636 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4637
4638 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4639 return len;
4640}
4641
4642static struct device_attribute ipr_resource_type_attr = {
4643 .attr = {
4644 .name = "resource_type",
4645 .mode = S_IRUGO,
4646 },
4647 .show = ipr_show_resource_type
4648};
4649
f8ee25d7
WX		 4650/**
4651 * ipr_show_raw_mode - Show the adapter's raw mode
4652 * @dev: class device struct
4653 * @buf: buffer
4654 *
4655 * Return value:
4656 * number of bytes printed to buffer
4657 **/
4658static ssize_t ipr_show_raw_mode(struct device *dev,
4659 struct device_attribute *attr, char *buf)
4660{
4661 struct scsi_device *sdev = to_scsi_device(dev);
4662 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4663 struct ipr_resource_entry *res;
4664 unsigned long lock_flags = 0;
4665 ssize_t len;
4666
4667 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4668 res = (struct ipr_resource_entry *)sdev->hostdata;
4669 if (res)
4670 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4671 else
4672 len = -ENXIO;
4673 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4674 return len;
4675}
4676
4677/**
4678 * ipr_store_raw_mode - Change the adapter's raw mode
4679 * @dev: class device struct
4680 * @buf: buffer
4681 *
4682 * Return value:
4683 * number of bytes printed to buffer
4684 **/
4685static ssize_t ipr_store_raw_mode(struct device *dev,
4686 struct device_attribute *attr,
4687 const char *buf, size_t count)
4688{
4689 struct scsi_device *sdev = to_scsi_device(dev);
4690 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4691 struct ipr_resource_entry *res;
4692 unsigned long lock_flags = 0;
4693 ssize_t len;
4694
4695 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4696 res = (struct ipr_resource_entry *)sdev->hostdata;
4697 if (res) {
e35d7f27 4698 if (ipr_is_af_dasd_device(res)) {
f8ee25d7
WX		 4699 res->raw_mode = simple_strtoul(buf, NULL, 10);
4700 len = strlen(buf);
4701 if (res->sdev)
4702 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4703 res->raw_mode ? "enabled" : "disabled");
4704 } else
4705 len = -EINVAL;
4706 } else
4707 len = -ENXIO;
4708 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4709 return len;
4710}
4711
4712static struct device_attribute ipr_raw_mode_attr = {
4713 .attr = {
4714 .name = "raw_mode",
4715 .mode = S_IRUGO | S_IWUSR,
4716 },
4717 .show = ipr_show_raw_mode,
4718 .store = ipr_store_raw_mode
4719};
4720
1da177e4
LT		 4721static struct device_attribute *ipr_dev_attrs[] = {
4722 &ipr_adapter_handle_attr,
3e7ebdfa 4723 &ipr_resource_path_attr,
46d74563 4724 &ipr_device_id_attr,
75576bb9 4725 &ipr_resource_type_attr,
f8ee25d7 4726 &ipr_raw_mode_attr,
1da177e4
LT		 4727 NULL,
4728};
4729
4730/**
4731 * ipr_biosparam - Return the HSC mapping
4732 * @sdev: scsi device struct
4733 * @block_device: block device pointer
4734 * @capacity: capacity of the device
4735 * @parm: Array containing returned HSC values.
4736 *
4737 * This function generates the HSC parms that fdisk uses.
4738 * We want to make sure we return something that places partitions
4739 * on 4k boundaries for best performance with the IOA.
4740 *
4741 * Return value:
4742 * 0 on success
4743 **/
4744static int ipr_biosparam(struct scsi_device *sdev,
4745 struct block_device *block_device,
4746 sector_t capacity, int *parm)
4747{
4748 int heads, sectors;
4749 sector_t cylinders;
4750
4751 heads = 128;
4752 sectors = 32;
4753
4754 cylinders = capacity;
4755 sector_div(cylinders, (128 * 32));
4756
4757 /* return result */
4758 parm[0] = heads;
4759 parm[1] = sectors;
4760 parm[2] = cylinders;
4761
4762 return 0;
4763}
4764
35a39691
BK		 4765/**
4766 * ipr_find_starget - Find target based on bus/target.
4767 * @starget: scsi target struct
4768 *
4769 * Return value:
4770 * resource entry pointer if found / NULL if not found
4771 **/
4772static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4773{
4774 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4775 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4776 struct ipr_resource_entry *res;
4777
4778 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4779 if ((res->bus == starget->channel) &&
0ee1d714 4780 (res->target == starget->id)) {
35a39691
BK		 4781 return res;
4782 }
4783 }
4784
4785 return NULL;
4786}
4787
4788static struct ata_port_info sata_port_info;
4789
4790/**
4791 * ipr_target_alloc - Prepare for commands to a SCSI target
4792 * @starget: scsi target struct
4793 *
4794 * If the device is a SATA device, this function allocates an
4795 * ATA port with libata, else it does nothing.
4796 *
4797 * Return value:
4798 * 0 on success / non-0 on failure
4799 **/
4800static int ipr_target_alloc(struct scsi_target *starget)
4801{
4802 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4803 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4804 struct ipr_sata_port *sata_port;
4805 struct ata_port *ap;
4806 struct ipr_resource_entry *res;
4807 unsigned long lock_flags;
4808
4809 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4810 res = ipr_find_starget(starget);
4811 starget->hostdata = NULL;
4812
4813 if (res && ipr_is_gata(res)) {
4814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4815 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4816 if (!sata_port)
4817 return -ENOMEM;
4818
4819 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4820 if (ap) {
4821 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4822 sata_port->ioa_cfg = ioa_cfg;
4823 sata_port->ap = ap;
4824 sata_port->res = res;
4825
4826 res->sata_port = sata_port;
4827 ap->private_data = sata_port;
4828 starget->hostdata = sata_port;
4829 } else {
4830 kfree(sata_port);
4831 return -ENOMEM;
4832 }
4833 }
4834 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4835
4836 return 0;
4837}
4838
4839/**
4840 * ipr_target_destroy - Destroy a SCSI target
4841 * @starget: scsi target struct
4842 *
4843 * If the device was a SATA device, this function frees the libata
4844 * ATA port, else it does nothing.
4845 *
4846 **/
4847static void ipr_target_destroy(struct scsi_target *starget)
4848{
4849 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4850 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4851 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4852
4853 if (ioa_cfg->sis64) {
0ee1d714
BK		 4854 if (!ipr_find_starget(starget)) {
4855 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4856 clear_bit(starget->id, ioa_cfg->array_ids);
4857 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4858 clear_bit(starget->id, ioa_cfg->vset_ids);
4859 else if (starget->channel == 0)
4860 clear_bit(starget->id, ioa_cfg->target_ids);
4861 }
3e7ebdfa 4862 }
35a39691
BK		 4863
4864 if (sata_port) {
4865 starget->hostdata = NULL;
4866 ata_sas_port_destroy(sata_port->ap);
4867 kfree(sata_port);
4868 }
4869}
4870
4871/**
4872 * ipr_find_sdev - Find device based on bus/target/lun.
4873 * @sdev: scsi device struct
4874 *
4875 * Return value:
4876 * resource entry pointer if found / NULL if not found
4877 **/
4878static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4879{
4880 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4881 struct ipr_resource_entry *res;
4882
4883 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4884 if ((res->bus == sdev->channel) &&
4885 (res->target == sdev->id) &&
4886 (res->lun == sdev->lun))
35a39691
BK		 4887 return res;
4888 }
4889
4890 return NULL;
4891}
4892
1da177e4
LT		 4893/**
4894 * ipr_slave_destroy - Unconfigure a SCSI device
4895 * @sdev: scsi device struct
4896 *
4897 * Return value:
4898 * nothing
4899 **/
4900static void ipr_slave_destroy(struct scsi_device *sdev)
4901{
4902 struct ipr_resource_entry *res;
4903 struct ipr_ioa_cfg *ioa_cfg;
4904 unsigned long lock_flags = 0;
4905
4906 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4907
4908 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4909 res = (struct ipr_resource_entry *) sdev->hostdata;
4910 if (res) {
35a39691 4911 if (res->sata_port)
3e4ec344 4912 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4913 sdev->hostdata = NULL;
4914 res->sdev = NULL;
35a39691 4915 res->sata_port = NULL;
1da177e4
LT		 4916 }
4917 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4918}
4919
4920/**
4921 * ipr_slave_configure - Configure a SCSI device
4922 * @sdev: scsi device struct
4923 *
4924 * This function configures the specified scsi device.
4925 *
4926 * Return value:
4927 * 0 on success
4928 **/
4929static int ipr_slave_configure(struct scsi_device *sdev)
4930{
4931 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4932 struct ipr_resource_entry *res;
dd406ef8 4933 struct ata_port *ap = NULL;
1da177e4 4934 unsigned long lock_flags = 0;
3e7ebdfa 4935 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4936
4937 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4938 res = sdev->hostdata;
4939 if (res) {
4940 if (ipr_is_af_dasd_device(res))
4941 sdev->type = TYPE_RAID;
0726ce26 4942 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4943 sdev->scsi_level = 4;
0726ce26
BK		 4944 sdev->no_uld_attach = 1;
4945 }
1da177e4 4946 if (ipr_is_vset_device(res)) {
60654e25 4947 sdev->scsi_level = SCSI_SPC_3;
723cd772 4948 sdev->no_report_opcodes = 1;
242f9dcb
JA		 4949 blk_queue_rq_timeout(sdev->request_queue,
4950 IPR_VSET_RW_TIMEOUT);
086fa5ff 4951 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4952 }
dd406ef8
BK		 4953 if (ipr_is_gata(res) && res->sata_port)
4954 ap = res->sata_port->ap;
4955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4956
4957 if (ap) {
db5ed4df 4958 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4959 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4960 }
4961
3e7ebdfa
WB		 4962 if (ioa_cfg->sis64)
4963 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4964 ipr_format_res_path(ioa_cfg,
4965 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4966 return 0;
1da177e4
LT		 4967 }
4968 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4969 return 0;
4970}
4971
35a39691
BK		 4972/**
4973 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4974 * @sdev: scsi device struct
4975 *
4976 * This function initializes an ATA port so that future commands
4977 * sent through queuecommand will work.
4978 *
4979 * Return value:
4980 * 0 on success
4981 **/
4982static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4983{
4984 struct ipr_sata_port *sata_port = NULL;
4985 int rc = -ENXIO;
4986
4987 ENTER;
4988 if (sdev->sdev_target)
4989 sata_port = sdev->sdev_target->hostdata;
b2024459 4990 if (sata_port) {
35a39691 4991 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4992 if (rc == 0)
4993 rc = ata_sas_sync_probe(sata_port->ap);
4994 }
4995
35a39691
BK		 4996 if (rc)
4997 ipr_slave_destroy(sdev);
4998
4999 LEAVE;
5000 return rc;
5001}
5002
1da177e4
LT		 5003/**
5004 * ipr_slave_alloc - Prepare for commands to a device.
5005 * @sdev: scsi device struct
5006 *
5007 * This function saves a pointer to the resource entry
5008 * in the scsi device struct if the device exists. We
5009 * can then use this pointer in ipr_queuecommand when
5010 * handling new commands.
5011 *
5012 * Return value:
692aebfc 5013 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 5014 **/
5015static int ipr_slave_alloc(struct scsi_device *sdev)
5016{
5017 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
5018 struct ipr_resource_entry *res;
5019 unsigned long lock_flags;
692aebfc 5020 int rc = -ENXIO;
1da177e4
LT		 5021
5022 sdev->hostdata = NULL;
5023
5024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5025
35a39691
BK		 5026 res = ipr_find_sdev(sdev);
5027 if (res) {
5028 res->sdev = sdev;
5029 res->add_to_ml = 0;
5030 res->in_erp = 0;
5031 sdev->hostdata = res;
5032 if (!ipr_is_naca_model(res))
5033 res->needs_sync_complete = 1;
5034 rc = 0;
5035 if (ipr_is_gata(res)) {
5036 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5037 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 5038 }
5039 }
5040
5041 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5042
692aebfc 5043 return rc;
1da177e4
LT		 5044}
5045
6cdb0817
BK		 5046/**
5047 * ipr_match_lun - Match function for specified LUN
5048 * @ipr_cmd: ipr command struct
5049 * @device: device to match (sdev)
5050 *
5051 * Returns:
5052 * 1 if command matches sdev / 0 if command does not match sdev
5053 **/
5054static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
5055{
5056 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
5057 return 1;
5058 return 0;
5059}
5060
439ae285
BK		 5061/**
5062 * ipr_cmnd_is_free - Check if a command is free or not
5063 * @ipr_cmd ipr command struct
5064 *
5065 * Returns:
5066 * true / false
5067 **/
5068static bool ipr_cmnd_is_free(struct ipr_cmnd *ipr_cmd)
5069{
5070 struct ipr_cmnd *loop_cmd;
5071
5072 list_for_each_entry(loop_cmd, &ipr_cmd->hrrq->hrrq_free_q, queue) {
5073 if (loop_cmd == ipr_cmd)
5074 return true;
5075 }
5076
5077 return false;
5078}
5079
ef97d8ae
BK		 5080/**
5081 * ipr_match_res - Match function for specified resource entry
5082 * @ipr_cmd: ipr command struct
5083 * @resource: resource entry to match
5084 *
5085 * Returns:
5086 * 1 if command matches sdev / 0 if command does not match sdev
5087 **/
5088static int ipr_match_res(struct ipr_cmnd *ipr_cmd, void *resource)
5089{
5090 struct ipr_resource_entry *res = resource;
5091
5092 if (res && ipr_cmd->ioarcb.res_handle == res->res_handle)
5093 return 1;
5094 return 0;
5095}
5096
6cdb0817
BK		 5097/**
5098 * ipr_wait_for_ops - Wait for matching commands to complete
5099 * @ipr_cmd: ipr command struct
5100 * @device: device to match (sdev)
5101 * @match: match function to use
5102 *
5103 * Returns:
5104 * SUCCESS / FAILED
5105 **/
5106static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
5107 int (*match)(struct ipr_cmnd *, void *))
5108{
5109 struct ipr_cmnd *ipr_cmd;
439ae285 5110 int wait, i;
6cdb0817
BK		 5111 unsigned long flags;
5112 struct ipr_hrr_queue *hrrq;
5113 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
5114 DECLARE_COMPLETION_ONSTACK(comp);
5115
5116 ENTER;
5117 do {
5118 wait = 0;
5119
5120 for_each_hrrq(hrrq, ioa_cfg) {
5121 spin_lock_irqsave(hrrq->lock, flags);
439ae285
BK		 5122 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5123 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5124 if (!ipr_cmnd_is_free(ipr_cmd)) {
5125 if (match(ipr_cmd, device)) {
5126 ipr_cmd->eh_comp = &comp;
5127 wait++;
5128 }
6cdb0817
BK		 5129 }
5130 }
5131 spin_unlock_irqrestore(hrrq->lock, flags);
5132 }
5133
5134 if (wait) {
5135 timeout = wait_for_completion_timeout(&comp, timeout);
5136
5137 if (!timeout) {
5138 wait = 0;
5139
5140 for_each_hrrq(hrrq, ioa_cfg) {
5141 spin_lock_irqsave(hrrq->lock, flags);
439ae285
BK		 5142 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5143 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5144 if (!ipr_cmnd_is_free(ipr_cmd)) {
5145 if (match(ipr_cmd, device)) {
5146 ipr_cmd->eh_comp = NULL;
5147 wait++;
5148 }
6cdb0817
BK		 5149 }
5150 }
5151 spin_unlock_irqrestore(hrrq->lock, flags);
5152 }
5153
5154 if (wait)
5155 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
5156 LEAVE;
5157 return wait ? FAILED : SUCCESS;
5158 }
5159 }
5160 } while (wait);
5161
5162 LEAVE;
5163 return SUCCESS;
5164}
5165
70233ac5 5166static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 5167{
5168 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 5169 unsigned long lock_flags = 0;
5170 int rc = SUCCESS;
1da177e4
LT		 5171
5172 ENTER;
70233ac5 5173 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5174 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 5175
96b04db9 5176 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 5177 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 5178 dev_err(&ioa_cfg->pdev->dev,
5179 "Adapter being reset as a result of error recovery.\n");
1da177e4 5180
a92fa25c
KSS		 5181 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5182 ioa_cfg->sdt_state = GET_DUMP;
5183 }
1da177e4 5184
70233ac5 5185 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5186 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5187 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 5188
70233ac5 5189 /* If we got hit with a host reset while we were already resetting
5190 the adapter for some reason, and the reset failed. */
5191 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5192 ipr_trace;
5193 rc = FAILED;
5194 }
df0ae249 5195
70233ac5 5196 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5197 LEAVE;
df0ae249
JG		 5198 return rc;
5199}
5200
c6513096
BK		 5201/**
5202 * ipr_device_reset - Reset the device
5203 * @ioa_cfg: ioa config struct
5204 * @res: resource entry struct
5205 *
5206 * This function issues a device reset to the affected device.
5207 * If the device is a SCSI device, a LUN reset will be sent
5208 * to the device first. If that does not work, a target reset
35a39691
BK		 5209 * will be sent. If the device is a SATA device, a PHY reset will
5210 * be sent.
c6513096
BK		 5211 *
5212 * Return value:
5213 * 0 on success / non-zero on failure
5214 **/
5215static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5216 struct ipr_resource_entry *res)
5217{
5218 struct ipr_cmnd *ipr_cmd;
5219 struct ipr_ioarcb *ioarcb;
5220 struct ipr_cmd_pkt *cmd_pkt;
35a39691 5221 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 5222 u32 ioasc;
5223
5224 ENTER;
5225 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5226 ioarcb = &ipr_cmd->ioarcb;
5227 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 5228
5229 if (ipr_cmd->ioa_cfg->sis64) {
5230 regs = &ipr_cmd->i.ata_ioadl.regs;
5231 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5232 } else
5233 regs = &ioarcb->u.add_data.u.regs;
c6513096 5234
3e7ebdfa 5235 ioarcb->res_handle = res->res_handle;
c6513096
BK		 5236 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5237 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 5238 if (ipr_is_gata(res)) {
5239 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 5240 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 5241 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5242 }
c6513096
BK		 5243
5244 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 5245 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 5246 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 5247 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5248 if (ipr_cmd->ioa_cfg->sis64)
5249 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5250 sizeof(struct ipr_ioasa_gata));
5251 else
5252 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5253 sizeof(struct ipr_ioasa_gata));
5254 }
c6513096
BK		 5255
5256 LEAVE;
203fa3fe 5257 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 5258}
5259
35a39691
BK		 5260/**
5261 * ipr_sata_reset - Reset the SATA port
cc0680a5 5262 * @link: SATA link to reset
35a39691
BK		 5263 * @classes: class of the attached device
5264 *
cc0680a5 5265 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 5266 *
5267 * Return value:
5268 * 0 on success / non-zero on failure
5269 **/
cc0680a5 5270static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 5271 unsigned long deadline)
35a39691 5272{
cc0680a5 5273 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 5274 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5275 struct ipr_resource_entry *res;
5276 unsigned long lock_flags = 0;
ef97d8ae 5277 int rc = -ENXIO, ret;
35a39691
BK		 5278
5279 ENTER;
5280 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 5281 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 5282 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5283 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5284 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5285 }
5286
35a39691
BK		 5287 res = sata_port->res;
5288 if (res) {
5289 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 5290 *classes = res->ata_class;
ef97d8ae
BK		 5291 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5292
5293 ret = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
5294 if (ret != SUCCESS) {
5295 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5296 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
5297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5298
5299 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5300 }
5301 } else
5302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
35a39691 5303
35a39691
BK		 5304 LEAVE;
5305 return rc;
5306}
5307
1da177e4
LT		 5308/**
5309 * ipr_eh_dev_reset - Reset the device
5310 * @scsi_cmd: scsi command struct
5311 *
5312 * This function issues a device reset to the affected device.
5313 * A LUN reset will be sent to the device first. If that does
5314 * not work, a target reset will be sent.
5315 *
5316 * Return value:
5317 * SUCCESS / FAILED
5318 **/
203fa3fe 5319static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5320{
5321 struct ipr_cmnd *ipr_cmd;
5322 struct ipr_ioa_cfg *ioa_cfg;
5323 struct ipr_resource_entry *res;
35a39691 5324 struct ata_port *ap;
439ae285 5325 int rc = 0, i;
05a6538a 5326 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5327
5328 ENTER;
5329 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5330 res = scsi_cmd->device->hostdata;
5331
1da177e4
LT		 5332 /*
5333 * If we are currently going through reset/reload, return failed. This will force the
5334 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5335 * reset to complete
5336 */
5337 if (ioa_cfg->in_reset_reload)
5338 return FAILED;
56d6aa33 5339 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5340 return FAILED;
5341
05a6538a 5342 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5343 spin_lock(&hrrq->_lock);
439ae285
BK		 5344 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5345 ipr_cmd = ioa_cfg->ipr_cmnd_list[i];
5346
05a6538a 5347 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
960e9648
BK		 5348 if (!ipr_cmd->qc)
5349 continue;
439ae285
BK		 5350 if (ipr_cmnd_is_free(ipr_cmd))
5351 continue;
960e9648
BK		 5352
5353 ipr_cmd->done = ipr_sata_eh_done;
5354 if (!(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
05a6538a 5355 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5356 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5357 }
7402ecef 5358 }
1da177e4 5359 }
56d6aa33 5360 spin_unlock(&hrrq->_lock);
1da177e4 5361 }
1da177e4 5362 res->resetting_device = 1;
fb3ed3cb 5363 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5364
5365 if (ipr_is_gata(res) && res->sata_port) {
5366 ap = res->sata_port->ap;
5367 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5368 ata_std_error_handler(ap);
35a39691
BK		 5369 spin_lock_irq(scsi_cmd->device->host->host_lock);
5370 } else
5371 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5372 res->resetting_device = 0;
0b1f8d44 5373 res->reset_occurred = 1;
1da177e4 5374
1da177e4 5375 LEAVE;
203fa3fe 5376 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5377}
5378
203fa3fe 5379static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5380{
5381 int rc;
6cdb0817 5382 struct ipr_ioa_cfg *ioa_cfg;
ef97d8ae 5383 struct ipr_resource_entry *res;
6cdb0817
BK		 5384
5385 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
ef97d8ae
BK		 5386 res = cmd->device->hostdata;
5387
5388 if (!res)
5389 return FAILED;
94d0e7b8
JG		 5390
5391 spin_lock_irq(cmd->device->host->host_lock);
5392 rc = __ipr_eh_dev_reset(cmd);
5393 spin_unlock_irq(cmd->device->host->host_lock);
5394
ef97d8ae
BK		 5395 if (rc == SUCCESS) {
5396 if (ipr_is_gata(res) && res->sata_port)
5397 rc = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res);
5398 else
5399 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5400 }
6cdb0817 5401
94d0e7b8
JG		 5402 return rc;
5403}
5404
1da177e4
LT		 5405/**
5406 * ipr_bus_reset_done - Op done function for bus reset.
5407 * @ipr_cmd: ipr command struct
5408 *
5409 * This function is the op done function for a bus reset
5410 *
5411 * Return value:
5412 * none
5413 **/
5414static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5415{
5416 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5417 struct ipr_resource_entry *res;
5418
5419 ENTER;
3e7ebdfa
WB		 5420 if (!ioa_cfg->sis64)
5421 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5422 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5423 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5424 break;
5425 }
1da177e4 5426 }
1da177e4
LT		 5427
5428 /*
5429 * If abort has not completed, indicate the reset has, else call the
5430 * abort's done function to wake the sleeping eh thread
5431 */
5432 if (ipr_cmd->sibling->sibling)
5433 ipr_cmd->sibling->sibling = NULL;
5434 else
5435 ipr_cmd->sibling->done(ipr_cmd->sibling);
5436
05a6538a 5437 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5438 LEAVE;
5439}
5440
5441/**
5442 * ipr_abort_timeout - An abort task has timed out
5443 * @ipr_cmd: ipr command struct
5444 *
5445 * This function handles when an abort task times out. If this
5446 * happens we issue a bus reset since we have resources tied
5447 * up that must be freed before returning to the midlayer.
5448 *
5449 * Return value:
5450 * none
5451 **/
5452static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5453{
5454 struct ipr_cmnd *reset_cmd;
5455 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5456 struct ipr_cmd_pkt *cmd_pkt;
5457 unsigned long lock_flags = 0;
5458
5459 ENTER;
5460 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5461 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5462 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5463 return;
5464 }
5465
fb3ed3cb 5466 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5467 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5468 ipr_cmd->sibling = reset_cmd;
5469 reset_cmd->sibling = ipr_cmd;
5470 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5471 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5472 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5473 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5474 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5475
5476 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5477 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5478 LEAVE;
5479}
5480
5481/**
5482 * ipr_cancel_op - Cancel specified op
5483 * @scsi_cmd: scsi command struct
5484 *
5485 * This function cancels specified op.
5486 *
5487 * Return value:
5488 * SUCCESS / FAILED
5489 **/
203fa3fe 5490static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5491{
5492 struct ipr_cmnd *ipr_cmd;
5493 struct ipr_ioa_cfg *ioa_cfg;
5494 struct ipr_resource_entry *res;
5495 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5496 u32 ioasc, int_reg;
439ae285 5497 int i, op_found = 0;
05a6538a 5498 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5499
5500 ENTER;
5501 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5502 res = scsi_cmd->device->hostdata;
5503
8fa728a2
JG		 5504 /* If we are currently going through reset/reload, return failed.
5505 * This will force the mid-layer to call ipr_eh_host_reset,
5506 * which will then go to sleep and wait for the reset to complete
5507 */
56d6aa33 5508 if (ioa_cfg->in_reset_reload ||
5509 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5510 return FAILED;
a92fa25c
KSS		 5511 if (!res)
5512 return FAILED;
5513
5514 /*
5515 * If we are aborting a timed out op, chances are that the timeout was caused
5516 * by a still not detected EEH error. In such cases, reading a register will
5517 * trigger the EEH recovery infrastructure.
5518 */
5519 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5520
5521 if (!ipr_is_gscsi(res))
1da177e4
LT		 5522 return FAILED;
5523
05a6538a 5524 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5525 spin_lock(&hrrq->_lock);
439ae285
BK		 5526 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) {
5527 if (ioa_cfg->ipr_cmnd_list[i]->scsi_cmd == scsi_cmd) {
5528 if (!ipr_cmnd_is_free(ioa_cfg->ipr_cmnd_list[i])) {
5529 op_found = 1;
5530 break;
5531 }
05a6538a 5532 }
1da177e4 5533 }
56d6aa33 5534 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5535 }
5536
5537 if (!op_found)
5538 return SUCCESS;
5539
5540 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5541 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5542 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5543 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5544 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5545 ipr_cmd->u.sdev = scsi_cmd->device;
5546
fb3ed3cb
BK		 5547 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5548 scsi_cmd->cmnd[0]);
1da177e4 5549 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5550 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5551
5552 /*
5553 * If the abort task timed out and we sent a bus reset, we will get
5554 * one the following responses to the abort
5555 */
5556 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5557 ioasc = 0;
5558 ipr_trace;
5559 }
5560
c4ee22a3 5561 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa
BK		 5562 if (!ipr_is_naca_model(res))
5563 res->needs_sync_complete = 1;
1da177e4
LT		 5564
5565 LEAVE;
203fa3fe 5566 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5567}
5568
5569/**
5570 * ipr_eh_abort - Abort a single op
5571 * @scsi_cmd: scsi command struct
5572 *
5573 * Return value:
f688f96d
BK		 5574 * 0 if scan in progress / 1 if scan is complete
5575 **/
5576static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5577{
5578 unsigned long lock_flags;
5579 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5580 int rc = 0;
5581
5582 spin_lock_irqsave(shost->host_lock, lock_flags);
5583 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5584 rc = 1;
5585 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5586 rc = 1;
5587 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5588 return rc;
5589}
5590
5591/**
5592 * ipr_eh_host_reset - Reset the host adapter
5593 * @scsi_cmd: scsi command struct
5594 *
5595 * Return value:
1da177e4
LT		 5596 * SUCCESS / FAILED
5597 **/
203fa3fe 5598static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5599{
8fa728a2
JG		 5600 unsigned long flags;
5601 int rc;
6cdb0817 5602 struct ipr_ioa_cfg *ioa_cfg;
1da177e4
LT		 5603
5604 ENTER;
1da177e4 5605
6cdb0817
BK		 5606 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5607
8fa728a2
JG		 5608 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5609 rc = ipr_cancel_op(scsi_cmd);
5610 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4 5611
6cdb0817
BK		 5612 if (rc == SUCCESS)
5613 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
1da177e4 5614 LEAVE;
8fa728a2 5615 return rc;
1da177e4
LT		 5616}
5617
5618/**
5619 * ipr_handle_other_interrupt - Handle "other" interrupts
5620 * @ioa_cfg: ioa config struct
634651fa 5621 * @int_reg: interrupt register
1da177e4
LT		 5622 *
5623 * Return value:
5624 * IRQ_NONE / IRQ_HANDLED
5625 **/
634651fa 5626static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5627 u32 int_reg)
1da177e4
LT		 5628{
5629 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5630 u32 int_mask_reg;
56d6aa33 5631
7dacb64f
WB		 5632 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5633 int_reg &= ~int_mask_reg;
5634
5635 /* If an interrupt on the adapter did not occur, ignore it.
5636 * Or in the case of SIS 64, check for a stage change interrupt.
5637 */
5638 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5639 if (ioa_cfg->sis64) {
5640 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5641 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5642 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5643
5644 /* clear stage change */
5645 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5646 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5647 list_del(&ioa_cfg->reset_cmd->queue);
5648 del_timer(&ioa_cfg->reset_cmd->timer);
5649 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5650 return IRQ_HANDLED;
5651 }
5652 }
5653
5654 return IRQ_NONE;
5655 }
1da177e4
LT		 5656
5657 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5658 /* Mask the interrupt */
5659 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 5660 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5661
5662 list_del(&ioa_cfg->reset_cmd->queue);
5663 del_timer(&ioa_cfg->reset_cmd->timer);
5664 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5665 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5666 if (ioa_cfg->clear_isr) {
5667 if (ipr_debug && printk_ratelimit())
5668 dev_err(&ioa_cfg->pdev->dev,
5669 "Spurious interrupt detected. 0x%08X\n", int_reg);
5670 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5671 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5672 return IRQ_NONE;
5673 }
1da177e4
LT		 5674 } else {
5675 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5676 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5677 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5678 dev_err(&ioa_cfg->pdev->dev,
5679 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5680 else
5681 dev_err(&ioa_cfg->pdev->dev,
5682 "Permanent IOA failure. 0x%08X\n", int_reg);
5683
5684 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5685 ioa_cfg->sdt_state = GET_DUMP;
5686
5687 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5688 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5689 }
56d6aa33 5690
1da177e4
LT		 5691 return rc;
5692}
5693
3feeb89d
WB		 5694/**
5695 * ipr_isr_eh - Interrupt service routine error handler
5696 * @ioa_cfg: ioa config struct
5697 * @msg: message to log
5698 *
5699 * Return value:
5700 * none
5701 **/
05a6538a 5702static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5703{
5704 ioa_cfg->errors_logged++;
05a6538a 5705 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5706
5707 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5708 ioa_cfg->sdt_state = GET_DUMP;
5709
5710 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5711}
5712
b53d124a 5713static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5714 struct list_head *doneq)
5715{
5716 u32 ioasc;
5717 u16 cmd_index;
5718 struct ipr_cmnd *ipr_cmd;
5719 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5720 int num_hrrq = 0;
5721
5722 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5723 if (!hrr_queue->allow_interrupts)
05a6538a 5724 return 0;
5725
5726 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5727 hrr_queue->toggle_bit) {
5728
5729 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5730 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5731 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5732
5733 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5734 cmd_index < hrr_queue->min_cmd_id)) {
5735 ipr_isr_eh(ioa_cfg,
5736 "Invalid response handle from IOA: ",
5737 cmd_index);
5738 break;
5739 }
5740
5741 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5742 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5743
5744 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5745
5746 list_move_tail(&ipr_cmd->queue, doneq);
5747
5748 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5749 hrr_queue->hrrq_curr++;
5750 } else {
5751 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5752 hrr_queue->toggle_bit ^= 1u;
5753 }
5754 num_hrrq++;
b53d124a 5755 if (budget > 0 && num_hrrq >= budget)
5756 break;
05a6538a 5757 }
b53d124a 5758
05a6538a 5759 return num_hrrq;
5760}
b53d124a 5761
511cbce2 5762static int ipr_iopoll(struct irq_poll *iop, int budget)
b53d124a 5763{
5764 struct ipr_ioa_cfg *ioa_cfg;
5765 struct ipr_hrr_queue *hrrq;
5766 struct ipr_cmnd *ipr_cmd, *temp;
5767 unsigned long hrrq_flags;
5768 int completed_ops;
5769 LIST_HEAD(doneq);
5770
5771 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5772 ioa_cfg = hrrq->ioa_cfg;
5773
5774 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5775 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5776
5777 if (completed_ops < budget)
511cbce2 5778 irq_poll_complete(iop);
b53d124a 5779 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5780
5781 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5782 list_del(&ipr_cmd->queue);
5783 del_timer(&ipr_cmd->timer);
5784 ipr_cmd->fast_done(ipr_cmd);
5785 }
5786
5787 return completed_ops;
5788}
5789
1da177e4
LT		 5790/**
5791 * ipr_isr - Interrupt service routine
5792 * @irq: irq number
5793 * @devp: pointer to ioa config struct
1da177e4
LT		 5794 *
5795 * Return value:
5796 * IRQ_NONE / IRQ_HANDLED
5797 **/
7d12e780 5798static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5799{
05a6538a 5800 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5801 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5802 unsigned long hrrq_flags = 0;
7dacb64f 5803 u32 int_reg = 0;
3feeb89d 5804 int num_hrrq = 0;
7dacb64f 5805 int irq_none = 0;
172cd6e1 5806 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5807 irqreturn_t rc = IRQ_NONE;
172cd6e1 5808 LIST_HEAD(doneq);
1da177e4 5809
56d6aa33 5810 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5811 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5812 if (!hrrq->allow_interrupts) {
5813 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5814 return IRQ_NONE;
5815 }
5816
1da177e4 5817 while (1) {
b53d124a 5818 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5819 rc = IRQ_HANDLED;
1da177e4 5820
b53d124a 5821 if (!ioa_cfg->clear_isr)
5822 break;
7dd21308 5823
1da177e4 5824 /* Clear the PCI interrupt */
a5442ba4 5825 num_hrrq = 0;
3feeb89d 5826 do {
b53d124a 5827 writel(IPR_PCII_HRRQ_UPDATED,
5828 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5829 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5830 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5831 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5832
7dacb64f
WB		 5833 } else if (rc == IRQ_NONE && irq_none == 0) {
5834 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5835 irq_none++;
a5442ba4
WB		 5836 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5837 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5838 ipr_isr_eh(ioa_cfg,
5839 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5840 rc = IRQ_HANDLED;
b53d124a 5841 break;
1da177e4
LT		 5842 } else
5843 break;
5844 }
5845
5846 if (unlikely(rc == IRQ_NONE))
634651fa 5847 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5848
56d6aa33 5849 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5850 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5851 list_del(&ipr_cmd->queue);
5852 del_timer(&ipr_cmd->timer);
5853 ipr_cmd->fast_done(ipr_cmd);
5854 }
05a6538a 5855 return rc;
5856}
5857
5858/**
5859 * ipr_isr_mhrrq - Interrupt service routine
5860 * @irq: irq number
5861 * @devp: pointer to ioa config struct
5862 *
5863 * Return value:
5864 * IRQ_NONE / IRQ_HANDLED
5865 **/
5866static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5867{
5868 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5869 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5870 unsigned long hrrq_flags = 0;
05a6538a 5871 struct ipr_cmnd *ipr_cmd, *temp;
5872 irqreturn_t rc = IRQ_NONE;
5873 LIST_HEAD(doneq);
172cd6e1 5874
56d6aa33 5875 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5876
5877 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5878 if (!hrrq->allow_interrupts) {
5879 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5880 return IRQ_NONE;
5881 }
5882
89f8b33c 5883 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5884 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5885 hrrq->toggle_bit) {
ea51190c 5886 irq_poll_sched(&hrrq->iopoll);
b53d124a 5887 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5888 return IRQ_HANDLED;
5889 }
5890 } else {
5891 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5892 hrrq->toggle_bit)
05a6538a 5893
b53d124a 5894 if (ipr_process_hrrq(hrrq, -1, &doneq))
5895 rc = IRQ_HANDLED;
5896 }
05a6538a 5897
56d6aa33 5898 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5899
5900 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5901 list_del(&ipr_cmd->queue);
5902 del_timer(&ipr_cmd->timer);
5903 ipr_cmd->fast_done(ipr_cmd);
5904 }
1da177e4
LT		 5905 return rc;
5906}
5907
a32c055f
WB		 5908/**
5909 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5910 * @ioa_cfg: ioa config struct
5911 * @ipr_cmd: ipr command struct
5912 *
5913 * Return value:
5914 * 0 on success / -1 on failure
5915 **/
5916static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5917 struct ipr_cmnd *ipr_cmd)
5918{
5919 int i, nseg;
5920 struct scatterlist *sg;
5921 u32 length;
5922 u32 ioadl_flags = 0;
5923 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5924 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5925 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5926
5927 length = scsi_bufflen(scsi_cmd);
5928 if (!length)
5929 return 0;
5930
5931 nseg = scsi_dma_map(scsi_cmd);
5932 if (nseg < 0) {
51f52a47 5933 if (printk_ratelimit())
d73341bf 5934 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5935 return -1;
5936 }
5937
5938 ipr_cmd->dma_use_sg = nseg;
5939
438b0331 5940 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5941 ioarcb->ioadl_len =
5942 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5943
a32c055f
WB		 5944 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5945 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5946 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5947 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5948 ioadl_flags = IPR_IOADL_FLAGS_READ;
5949
5950 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5951 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5952 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5953 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5954 }
5955
5956 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5957 return 0;
5958}
5959
1da177e4
LT		 5960/**
5961 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5962 * @ioa_cfg: ioa config struct
5963 * @ipr_cmd: ipr command struct
5964 *
5965 * Return value:
5966 * 0 on success / -1 on failure
5967 **/
5968static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5969 struct ipr_cmnd *ipr_cmd)
5970{
63015bc9
FT		 5971 int i, nseg;
5972 struct scatterlist *sg;
1da177e4
LT		 5973 u32 length;
5974 u32 ioadl_flags = 0;
5975 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5976 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5977 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5978
63015bc9
FT		 5979 length = scsi_bufflen(scsi_cmd);
5980 if (!length)
1da177e4
LT		 5981 return 0;
5982
63015bc9
FT		 5983 nseg = scsi_dma_map(scsi_cmd);
5984 if (nseg < 0) {
d73341bf 5985 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5986 return -1;
5987 }
51b1c7e1 5988
63015bc9
FT		 5989 ipr_cmd->dma_use_sg = nseg;
5990
5991 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5992 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5993 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5994 ioarcb->data_transfer_length = cpu_to_be32(length);
5995 ioarcb->ioadl_len =
63015bc9
FT		 5996 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5997 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5998 ioadl_flags = IPR_IOADL_FLAGS_READ;
5999 ioarcb->read_data_transfer_length = cpu_to_be32(length);
6000 ioarcb->read_ioadl_len =
6001 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6002 }
1da177e4 6003
a32c055f
WB		 6004 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
6005 ioadl = ioarcb->u.add_data.u.ioadl;
6006 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
6007 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 6008 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
6009 }
1da177e4 6010
63015bc9
FT		 6011 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
6012 ioadl[i].flags_and_data_len =
6013 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6014 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 6015 }
6016
63015bc9
FT		 6017 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6018 return 0;
1da177e4
LT		 6019}
6020
1da177e4 6021/**
f646f325 6022 * __ipr_erp_done - Process completion of ERP for a device
1da177e4
LT		 6023 * @ipr_cmd: ipr command struct
6024 *
6025 * This function copies the sense buffer into the scsi_cmd
6026 * struct and pushes the scsi_done function.
6027 *
6028 * Return value:
6029 * nothing
6030 **/
f646f325 6031static void __ipr_erp_done(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 6032{
6033 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6034 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6035 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 6036
6037 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
6038 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 6039 scmd_printk(KERN_ERR, scsi_cmd,
6040 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 6041 } else {
6042 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
6043 SCSI_SENSE_BUFFERSIZE);
6044 }
6045
6046 if (res) {
ee0a90fa
BK		 6047 if (!ipr_is_naca_model(res))
6048 res->needs_sync_complete = 1;
1da177e4
LT		 6049 res->in_erp = 0;
6050 }
63015bc9 6051 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 6052 scsi_cmd->scsi_done(scsi_cmd);
66a0d59c
BK		 6053 if (ipr_cmd->eh_comp)
6054 complete(ipr_cmd->eh_comp);
6055 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6056}
6057
f646f325
BK		 6058/**
6059 * ipr_erp_done - Process completion of ERP for a device
6060 * @ipr_cmd: ipr command struct
6061 *
6062 * This function copies the sense buffer into the scsi_cmd
6063 * struct and pushes the scsi_done function.
6064 *
6065 * Return value:
6066 * nothing
6067 **/
6068static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
6069{
6070 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
6071 unsigned long hrrq_flags;
6072
6073 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
6074 __ipr_erp_done(ipr_cmd);
6075 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
1da177e4
LT		 6076}
6077
6078/**
6079 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
6080 * @ipr_cmd: ipr command struct
6081 *
6082 * Return value:
6083 * none
6084 **/
6085static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
6086{
51b1c7e1 6087 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 6088 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 6089 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 6090
6091 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 6092 ioarcb->data_transfer_length = 0;
1da177e4 6093 ioarcb->read_data_transfer_length = 0;
a32c055f 6094 ioarcb->ioadl_len = 0;
1da177e4 6095 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 6096 ioasa->hdr.ioasc = 0;
6097 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 6098
6099 if (ipr_cmd->ioa_cfg->sis64)
6100 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6101 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
6102 else {
6103 ioarcb->write_ioadl_addr =
6104 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
6105 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
6106 }
1da177e4
LT		 6107}
6108
6109/**
f646f325 6110 * __ipr_erp_request_sense - Send request sense to a device
1da177e4
LT		 6111 * @ipr_cmd: ipr command struct
6112 *
6113 * This function sends a request sense to a device as a result
6114 * of a check condition.
6115 *
6116 * Return value:
6117 * nothing
6118 **/
f646f325 6119static void __ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 6120{
6121 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 6122 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 6123
6124 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
f646f325 6125 __ipr_erp_done(ipr_cmd);
1da177e4
LT		 6126 return;
6127 }
6128
6129 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6130
6131 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
6132 cmd_pkt->cdb[0] = REQUEST_SENSE;
6133 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
6134 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
6135 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6136 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
6137
a32c055f
WB		 6138 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
6139 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6140
6141 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
6142 IPR_REQUEST_SENSE_TIMEOUT * 2);
6143}
6144
f646f325
BK		 6145/**
6146 * ipr_erp_request_sense - Send request sense to a device
6147 * @ipr_cmd: ipr command struct
6148 *
6149 * This function sends a request sense to a device as a result
6150 * of a check condition.
6151 *
6152 * Return value:
6153 * nothing
6154 **/
6155static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
6156{
6157 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq;
6158 unsigned long hrrq_flags;
6159
6160 spin_lock_irqsave(&hrrq->_lock, hrrq_flags);
6161 __ipr_erp_request_sense(ipr_cmd);
6162 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags);
6163}
6164
1da177e4
LT		 6165/**
6166 * ipr_erp_cancel_all - Send cancel all to a device
6167 * @ipr_cmd: ipr command struct
6168 *
6169 * This function sends a cancel all to a device to clear the
6170 * queue. If we are running TCQ on the device, QERR is set to 1,
6171 * which means all outstanding ops have been dropped on the floor.
6172 * Cancel all will return them to us.
6173 *
6174 * Return value:
6175 * nothing
6176 **/
6177static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
6178{
6179 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6180 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6181 struct ipr_cmd_pkt *cmd_pkt;
6182
6183 res->in_erp = 1;
6184
6185 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6186
17ea0126 6187 if (!scsi_cmd->device->simple_tags) {
f646f325 6188 __ipr_erp_request_sense(ipr_cmd);
1da177e4
LT		 6189 return;
6190 }
6191
6192 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
6193 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
6194 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
6195
6196 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
6197 IPR_CANCEL_ALL_TIMEOUT);
6198}
6199
6200/**
6201 * ipr_dump_ioasa - Dump contents of IOASA
6202 * @ioa_cfg: ioa config struct
6203 * @ipr_cmd: ipr command struct
fe964d0a 6204 * @res: resource entry struct
1da177e4
LT		 6205 *
6206 * This function is invoked by the interrupt handler when ops
6207 * fail. It will log the IOASA if appropriate. Only called
6208 * for GPDD ops.
6209 *
6210 * Return value:
6211 * none
6212 **/
6213static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 6214 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 6215{
6216 int i;
6217 u16 data_len;
b0692dd4 6218 u32 ioasc, fd_ioasc;
96d21f00 6219 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 6220 __be32 *ioasa_data = (__be32 *)ioasa;
6221 int error_index;
6222
96d21f00
WB		 6223 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
6224 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6225
6226 if (0 == ioasc)
6227 return;
6228
6229 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6230 return;
6231
b0692dd4
BK		 6232 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6233 error_index = ipr_get_error(fd_ioasc);
6234 else
6235 error_index = ipr_get_error(ioasc);
1da177e4
LT		 6236
6237 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6238 /* Don't log an error if the IOA already logged one */
96d21f00 6239 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 6240 return;
6241
cc9bd5d4
BK		 6242 if (!ipr_is_gscsi(res))
6243 return;
6244
1da177e4
LT		 6245 if (ipr_error_table[error_index].log_ioasa == 0)
6246 return;
6247 }
6248
fe964d0a 6249 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 6250
96d21f00
WB		 6251 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6252 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6253 data_len = sizeof(struct ipr_ioasa64);
6254 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 6255 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 6256
6257 ipr_err("IOASA Dump:\n");
6258
6259 for (i = 0; i < data_len / 4; i += 4) {
6260 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6261 be32_to_cpu(ioasa_data[i]),
6262 be32_to_cpu(ioasa_data[i+1]),
6263 be32_to_cpu(ioasa_data[i+2]),
6264 be32_to_cpu(ioasa_data[i+3]));
6265 }
6266}
6267
6268/**
6269 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6270 * @ioasa: IOASA
6271 * @sense_buf: sense data buffer
6272 *
6273 * Return value:
6274 * none
6275 **/
6276static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6277{
6278 u32 failing_lba;
6279 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6280 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 6281 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6282 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 6283
6284 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6285
6286 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6287 return;
6288
6289 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6290
6291 if (ipr_is_vset_device(res) &&
6292 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6293 ioasa->u.vset.failing_lba_hi != 0) {
6294 sense_buf[0] = 0x72;
6295 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6296 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6297 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6298
6299 sense_buf[7] = 12;
6300 sense_buf[8] = 0;
6301 sense_buf[9] = 0x0A;
6302 sense_buf[10] = 0x80;
6303
6304 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6305
6306 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6307 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6308 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6309 sense_buf[15] = failing_lba & 0x000000ff;
6310
6311 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6312
6313 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6314 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6315 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6316 sense_buf[19] = failing_lba & 0x000000ff;
6317 } else {
6318 sense_buf[0] = 0x70;
6319 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6320 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6321 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6322
6323 /* Illegal request */
6324 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 6325 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 6326 sense_buf[7] = 10; /* additional length */
6327
6328 /* IOARCB was in error */
6329 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6330 sense_buf[15] = 0xC0;
6331 else /* Parameter data was invalid */
6332 sense_buf[15] = 0x80;
6333
6334 sense_buf[16] =
6335 ((IPR_FIELD_POINTER_MASK &
96d21f00 6336 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 6337 sense_buf[17] =
6338 (IPR_FIELD_POINTER_MASK &
96d21f00 6339 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 6340 } else {
6341 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6342 if (ipr_is_vset_device(res))
6343 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6344 else
6345 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6346
6347 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6348 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6349 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6350 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6351 sense_buf[6] = failing_lba & 0x000000ff;
6352 }
6353
6354 sense_buf[7] = 6; /* additional length */
6355 }
6356 }
6357}
6358
ee0a90fa
BK		 6359/**
6360 * ipr_get_autosense - Copy autosense data to sense buffer
6361 * @ipr_cmd: ipr command struct
6362 *
6363 * This function copies the autosense buffer to the buffer
6364 * in the scsi_cmd, if there is autosense available.
6365 *
6366 * Return value:
6367 * 1 if autosense was available / 0 if not
6368 **/
6369static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6370{
96d21f00
WB		 6371 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6372 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 6373
96d21f00 6374 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 6375 return 0;
6376
96d21f00
WB		 6377 if (ipr_cmd->ioa_cfg->sis64)
6378 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6379 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6380 SCSI_SENSE_BUFFERSIZE));
6381 else
6382 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6383 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6384 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 6385 return 1;
6386}
6387
1da177e4
LT		 6388/**
6389 * ipr_erp_start - Process an error response for a SCSI op
6390 * @ioa_cfg: ioa config struct
6391 * @ipr_cmd: ipr command struct
6392 *
6393 * This function determines whether or not to initiate ERP
6394 * on the affected device.
6395 *
6396 * Return value:
6397 * nothing
6398 **/
6399static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6400 struct ipr_cmnd *ipr_cmd)
6401{
6402 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6403 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6404 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6405 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6406
6407 if (!res) {
f646f325 6408 __ipr_scsi_eh_done(ipr_cmd);
1da177e4
LT		 6409 return;
6410 }
6411
8a048994 6412 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6413 ipr_gen_sense(ipr_cmd);
6414
cc9bd5d4
BK		 6415 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6416
8a048994 6417 switch (masked_ioasc) {
1da177e4 6418 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 6419 if (ipr_is_naca_model(res))
6420 scsi_cmd->result |= (DID_ABORT << 16);
6421 else
6422 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6423 break;
6424 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6425 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6426 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6427 break;
6428 case IPR_IOASC_HW_SEL_TIMEOUT:
6429 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 6430 if (!ipr_is_naca_model(res))
6431 res->needs_sync_complete = 1;
1da177e4
LT		 6432 break;
6433 case IPR_IOASC_SYNC_REQUIRED:
6434 if (!res->in_erp)
6435 res->needs_sync_complete = 1;
6436 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6437 break;
6438 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6439 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
785a4704
MFO		 6440 /*
6441 * exception: do not set DID_PASSTHROUGH on CHECK CONDITION
6442 * so SCSI mid-layer and upper layers handle it accordingly.
6443 */
6444 if (scsi_cmd->result != SAM_STAT_CHECK_CONDITION)
6445 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
1da177e4
LT		 6446 break;
6447 case IPR_IOASC_BUS_WAS_RESET:
6448 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6449 /*
6450 * Report the bus reset and ask for a retry. The device
6451 * will give CC/UA the next command.
6452 */
6453 if (!res->resetting_device)
6454 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6455 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 6456 if (!ipr_is_naca_model(res))
6457 res->needs_sync_complete = 1;
1da177e4
LT		 6458 break;
6459 case IPR_IOASC_HW_DEV_BUS_STATUS:
6460 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6461 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 6462 if (!ipr_get_autosense(ipr_cmd)) {
6463 if (!ipr_is_naca_model(res)) {
6464 ipr_erp_cancel_all(ipr_cmd);
6465 return;
6466 }
6467 }
1da177e4 6468 }
ee0a90fa
BK		 6469 if (!ipr_is_naca_model(res))
6470 res->needs_sync_complete = 1;
1da177e4
LT		 6471 break;
6472 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6473 break;
f8ee25d7
WX		 6474 case IPR_IOASC_IR_NON_OPTIMIZED:
6475 if (res->raw_mode) {
6476 res->raw_mode = 0;
6477 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6478 } else
6479 scsi_cmd->result |= (DID_ERROR << 16);
6480 break;
1da177e4 6481 default:
5b7304fb
BK		 6482 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6483 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6484 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6485 res->needs_sync_complete = 1;
6486 break;
6487 }
6488
63015bc9 6489 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 6490 scsi_cmd->scsi_done(scsi_cmd);
66a0d59c
BK		 6491 if (ipr_cmd->eh_comp)
6492 complete(ipr_cmd->eh_comp);
6493 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6494}
6495
6496/**
6497 * ipr_scsi_done - mid-layer done function
6498 * @ipr_cmd: ipr command struct
6499 *
6500 * This function is invoked by the interrupt handler for
6501 * ops generated by the SCSI mid-layer
6502 *
6503 * Return value:
6504 * none
6505 **/
6506static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6507{
6508 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6509 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6510 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
36b8e180 6511 unsigned long lock_flags;
1da177e4 6512
96d21f00 6513 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6514
6515 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6516 scsi_dma_unmap(scsi_cmd);
6517
36b8e180 6518 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
1da177e4 6519 scsi_cmd->scsi_done(scsi_cmd);
66a0d59c
BK		 6520 if (ipr_cmd->eh_comp)
6521 complete(ipr_cmd->eh_comp);
6522 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
36b8e180 6523 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
172cd6e1 6524 } else {
36b8e180
BK		 6525 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6526 spin_lock(&ipr_cmd->hrrq->_lock);
1da177e4 6527 ipr_erp_start(ioa_cfg, ipr_cmd);
36b8e180
BK		 6528 spin_unlock(&ipr_cmd->hrrq->_lock);
6529 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
172cd6e1 6530 }
1da177e4
LT		 6531}
6532
1da177e4
LT		 6533/**
6534 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6535 * @shost: scsi host struct
1da177e4 6536 * @scsi_cmd: scsi command struct
1da177e4
LT		 6537 *
6538 * This function queues a request generated by the mid-layer.
6539 *
6540 * Return value:
6541 * 0 on success
6542 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6543 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6544 **/
00bfef2c
BK		 6545static int ipr_queuecommand(struct Scsi_Host *shost,
6546 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6547{
6548 struct ipr_ioa_cfg *ioa_cfg;
6549 struct ipr_resource_entry *res;
6550 struct ipr_ioarcb *ioarcb;
6551 struct ipr_cmnd *ipr_cmd;
56d6aa33 6552 unsigned long hrrq_flags, lock_flags;
d12f1576 6553 int rc;
05a6538a 6554 struct ipr_hrr_queue *hrrq;
6555 int hrrq_id;
1da177e4 6556
00bfef2c
BK		 6557 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6558
1da177e4 6559 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6560 res = scsi_cmd->device->hostdata;
56d6aa33 6561
6562 if (ipr_is_gata(res) && res->sata_port) {
6563 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6564 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6565 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6566 return rc;
6567 }
6568
05a6538a 6569 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6570 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6571
56d6aa33 6572 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6573 /*
6574 * We are currently blocking all devices due to a host reset
6575 * We have told the host to stop giving us new requests, but
6576 * ERP ops don't count. FIXME
6577 */
bfae7820 6578 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6579 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6580 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6581 }
1da177e4
LT		 6582
6583 /*
6584 * FIXME - Create scsi_set_host_offline interface
6585 * and the ioa_is_dead check can be removed
6586 */
bfae7820 6587 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6588 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6589 goto err_nodev;
1da177e4
LT		 6590 }
6591
05a6538a 6592 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6593 if (ipr_cmd == NULL) {
56d6aa33 6594 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6595 return SCSI_MLQUEUE_HOST_BUSY;
6596 }
56d6aa33 6597 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6598
172cd6e1 6599 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6600 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6601
6602 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6603 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6604 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4 6605
4f92d01a 6606 if (ipr_is_gscsi(res)) {
1da177e4
LT		 6607 if (scsi_cmd->underflow == 0)
6608 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6609
4f92d01a 6610 if (res->reset_occurred) {
0b1f8d44 6611 res->reset_occurred = 0;
ab6c10b1 6612 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6613 }
4f92d01a
GKB		 6614 }
6615
6616 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6617 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6618
1da177e4 6619 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6620 if (scsi_cmd->flags & SCMD_TAGGED)
6621 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6622 else
6623 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6624 }
6625
6626 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6627 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6628 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6629 }
3cb4fc1f 6630 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
f8ee25d7 6631 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
1da177e4 6632
3cb4fc1f
GKB		 6633 if (scsi_cmd->underflow == 0)
6634 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6635 }
6636
d12f1576
DC		 6637 if (ioa_cfg->sis64)
6638 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6639 else
6640 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6641
56d6aa33 6642 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6643 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6644 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6645 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6646 if (!rc)
6647 scsi_dma_unmap(scsi_cmd);
a5fb407e 6648 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6649 }
6650
56d6aa33 6651 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6652 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6653 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6654 scsi_dma_unmap(scsi_cmd);
6655 goto err_nodev;
6656 }
6657
6658 ioarcb->res_handle = res->res_handle;
6659 if (res->needs_sync_complete) {
6660 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6661 res->needs_sync_complete = 0;
6662 }
05a6538a 6663 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6664 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6665 ipr_send_command(ipr_cmd);
56d6aa33 6666 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6667 return 0;
1da177e4 6668
00bfef2c 6669err_nodev:
56d6aa33 6670 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6671 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6672 scsi_cmd->result = (DID_NO_CONNECT << 16);
6673 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6674 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6675 return 0;
6676}
f281233d 6677
35a39691
BK		 6678/**
6679 * ipr_ioctl - IOCTL handler
6680 * @sdev: scsi device struct
6681 * @cmd: IOCTL cmd
6682 * @arg: IOCTL arg
6683 *
6684 * Return value:
6685 * 0 on success / other on failure
6686 **/
bd705f2d 6687static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6688{
6689 struct ipr_resource_entry *res;
6690
6691 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6692 if (res && ipr_is_gata(res)) {
6693 if (cmd == HDIO_GET_IDENTITY)
6694 return -ENOTTY;
94be9a58 6695 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6696 }
35a39691
BK		 6697
6698 return -EINVAL;
6699}
6700
1da177e4
LT		 6701/**
6702 * ipr_info - Get information about the card/driver
6703 * @scsi_host: scsi host struct
6704 *
6705 * Return value:
6706 * pointer to buffer with description string
6707 **/
203fa3fe 6708static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6709{
6710 static char buffer[512];
6711 struct ipr_ioa_cfg *ioa_cfg;
6712 unsigned long lock_flags = 0;
6713
6714 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6715
6716 spin_lock_irqsave(host->host_lock, lock_flags);
6717 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6718 spin_unlock_irqrestore(host->host_lock, lock_flags);
6719
6720 return buffer;
6721}
6722
6723static struct scsi_host_template driver_template = {
6724 .module = THIS_MODULE,
6725 .name = "IPR",
6726 .info = ipr_ioa_info,
35a39691 6727 .ioctl = ipr_ioctl,
1da177e4
LT		 6728 .queuecommand = ipr_queuecommand,
6729 .eh_abort_handler = ipr_eh_abort,
6730 .eh_device_reset_handler = ipr_eh_dev_reset,
6731 .eh_host_reset_handler = ipr_eh_host_reset,
6732 .slave_alloc = ipr_slave_alloc,
6733 .slave_configure = ipr_slave_configure,
6734 .slave_destroy = ipr_slave_destroy,
f688f96d 6735 .scan_finished = ipr_scan_finished,
35a39691
BK		 6736 .target_alloc = ipr_target_alloc,
6737 .target_destroy = ipr_target_destroy,
1da177e4 6738 .change_queue_depth = ipr_change_queue_depth,
1da177e4
LT		 6739 .bios_param = ipr_biosparam,
6740 .can_queue = IPR_MAX_COMMANDS,
6741 .this_id = -1,
6742 .sg_tablesize = IPR_MAX_SGLIST,
6743 .max_sectors = IPR_IOA_MAX_SECTORS,
6744 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6745 .use_clustering = ENABLE_CLUSTERING,
6746 .shost_attrs = ipr_ioa_attrs,
6747 .sdev_attrs = ipr_dev_attrs,
54b2b50c 6748 .proc_name = IPR_NAME,
1da177e4
LT		 6749};
6750
35a39691
BK		 6751/**
6752 * ipr_ata_phy_reset - libata phy_reset handler
6753 * @ap: ata port to reset
6754 *
6755 **/
6756static void ipr_ata_phy_reset(struct ata_port *ap)
6757{
6758 unsigned long flags;
6759 struct ipr_sata_port *sata_port = ap->private_data;
6760 struct ipr_resource_entry *res = sata_port->res;
6761 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6762 int rc;
6763
6764 ENTER;
6765 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6766 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6767 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6768 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6769 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6770 }
6771
56d6aa33 6772 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6773 goto out_unlock;
6774
6775 rc = ipr_device_reset(ioa_cfg, res);
6776
6777 if (rc) {
3e4ec344 6778 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6779 goto out_unlock;
6780 }
6781
3e7ebdfa
WB		 6782 ap->link.device[0].class = res->ata_class;
6783 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6784 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6785
6786out_unlock:
6787 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6788 LEAVE;
6789}
6790
6791/**
6792 * ipr_ata_post_internal - Cleanup after an internal command
6793 * @qc: ATA queued command
6794 *
6795 * Return value:
6796 * none
6797 **/
6798static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6799{
6800 struct ipr_sata_port *sata_port = qc->ap->private_data;
6801 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6802 struct ipr_cmnd *ipr_cmd;
05a6538a 6803 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6804 unsigned long flags;
6805
6806 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6807 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6808 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6809 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6810 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6811 }
6812
05a6538a 6813 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6814 spin_lock(&hrrq->_lock);
05a6538a 6815 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6816 if (ipr_cmd->qc == qc) {
6817 ipr_device_reset(ioa_cfg, sata_port->res);
6818 break;
6819 }
35a39691 6820 }
56d6aa33 6821 spin_unlock(&hrrq->_lock);
35a39691
BK		 6822 }
6823 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6824}
6825
35a39691
BK		 6826/**
6827 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6828 * @regs: destination
6829 * @tf: source ATA taskfile
6830 *
6831 * Return value:
6832 * none
6833 **/
6834static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6835 struct ata_taskfile *tf)
6836{
6837 regs->feature = tf->feature;
6838 regs->nsect = tf->nsect;
6839 regs->lbal = tf->lbal;
6840 regs->lbam = tf->lbam;
6841 regs->lbah = tf->lbah;
6842 regs->device = tf->device;
6843 regs->command = tf->command;
6844 regs->hob_feature = tf->hob_feature;
6845 regs->hob_nsect = tf->hob_nsect;
6846 regs->hob_lbal = tf->hob_lbal;
6847 regs->hob_lbam = tf->hob_lbam;
6848 regs->hob_lbah = tf->hob_lbah;
6849 regs->ctl = tf->ctl;
6850}
6851
6852/**
6853 * ipr_sata_done - done function for SATA commands
6854 * @ipr_cmd: ipr command struct
6855 *
6856 * This function is invoked by the interrupt handler for
6857 * ops generated by the SCSI mid-layer to SATA devices
6858 *
6859 * Return value:
6860 * none
6861 **/
6862static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6863{
6864 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6865 struct ata_queued_cmd *qc = ipr_cmd->qc;
6866 struct ipr_sata_port *sata_port = qc->ap->private_data;
6867 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6868 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6869
56d6aa33 6870 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6871 if (ipr_cmd->ioa_cfg->sis64)
6872 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6873 sizeof(struct ipr_ioasa_gata));
6874 else
6875 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6876 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6877 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6878
96d21f00 6879 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6880 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6881
6882 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6883 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6884 else
96d21f00 6885 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6886 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6887 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6888 ata_qc_complete(qc);
6889}
6890
a32c055f
WB		 6891/**
6892 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6893 * @ipr_cmd: ipr command struct
6894 * @qc: ATA queued command
6895 *
6896 **/
6897static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6898 struct ata_queued_cmd *qc)
6899{
6900 u32 ioadl_flags = 0;
6901 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6902 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6903 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6904 int len = qc->nbytes;
6905 struct scatterlist *sg;
6906 unsigned int si;
6907 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6908
6909 if (len == 0)
6910 return;
6911
6912 if (qc->dma_dir == DMA_TO_DEVICE) {
6913 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6914 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6915 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6916 ioadl_flags = IPR_IOADL_FLAGS_READ;
6917
6918 ioarcb->data_transfer_length = cpu_to_be32(len);
6919 ioarcb->ioadl_len =
6920 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6921 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6922 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6923
6924 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6925 ioadl64->flags = cpu_to_be32(ioadl_flags);
6926 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6927 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6928
6929 last_ioadl64 = ioadl64;
6930 ioadl64++;
6931 }
6932
6933 if (likely(last_ioadl64))
6934 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6935}
6936
35a39691
BK		 6937/**
6938 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6939 * @ipr_cmd: ipr command struct
6940 * @qc: ATA queued command
6941 *
6942 **/
6943static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6944 struct ata_queued_cmd *qc)
6945{
6946 u32 ioadl_flags = 0;
6947 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6948 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6949 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6950 int len = qc->nbytes;
35a39691 6951 struct scatterlist *sg;
ff2aeb1e 6952 unsigned int si;
35a39691
BK		 6953
6954 if (len == 0)
6955 return;
6956
6957 if (qc->dma_dir == DMA_TO_DEVICE) {
6958 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6959 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6960 ioarcb->data_transfer_length = cpu_to_be32(len);
6961 ioarcb->ioadl_len =
35a39691
BK		 6962 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6963 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6964 ioadl_flags = IPR_IOADL_FLAGS_READ;
6965 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6966 ioarcb->read_ioadl_len =
6967 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6968 }
6969
ff2aeb1e 6970 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6971 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6972 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6973
6974 last_ioadl = ioadl;
6975 ioadl++;
35a39691 6976 }
3be6cbd7
JG		 6977
6978 if (likely(last_ioadl))
6979 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6980}
6981
56d6aa33 6982/**
6983 * ipr_qc_defer - Get a free ipr_cmd
6984 * @qc: queued command
6985 *
6986 * Return value:
6987 * 0 if success
6988 **/
6989static int ipr_qc_defer(struct ata_queued_cmd *qc)
6990{
6991 struct ata_port *ap = qc->ap;
6992 struct ipr_sata_port *sata_port = ap->private_data;
6993 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6994 struct ipr_cmnd *ipr_cmd;
6995 struct ipr_hrr_queue *hrrq;
6996 int hrrq_id;
6997
6998 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6999 hrrq = &ioa_cfg->hrrq[hrrq_id];
7000
7001 qc->lldd_task = NULL;
7002 spin_lock(&hrrq->_lock);
7003 if (unlikely(hrrq->ioa_is_dead)) {
7004 spin_unlock(&hrrq->_lock);
7005 return 0;
7006 }
7007
7008 if (unlikely(!hrrq->allow_cmds)) {
7009 spin_unlock(&hrrq->_lock);
7010 return ATA_DEFER_LINK;
7011 }
7012
7013 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
7014 if (ipr_cmd == NULL) {
7015 spin_unlock(&hrrq->_lock);
7016 return ATA_DEFER_LINK;
7017 }
7018
7019 qc->lldd_task = ipr_cmd;
7020 spin_unlock(&hrrq->_lock);
7021 return 0;
7022}
7023
35a39691
BK		 7024/**
7025 * ipr_qc_issue - Issue a SATA qc to a device
7026 * @qc: queued command
7027 *
7028 * Return value:
7029 * 0 if success
7030 **/
7031static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
7032{
7033 struct ata_port *ap = qc->ap;
7034 struct ipr_sata_port *sata_port = ap->private_data;
7035 struct ipr_resource_entry *res = sata_port->res;
7036 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
7037 struct ipr_cmnd *ipr_cmd;
7038 struct ipr_ioarcb *ioarcb;
7039 struct ipr_ioarcb_ata_regs *regs;
7040
56d6aa33 7041 if (qc->lldd_task == NULL)
7042 ipr_qc_defer(qc);
7043
7044 ipr_cmd = qc->lldd_task;
7045 if (ipr_cmd == NULL)
0feeed82 7046 return AC_ERR_SYSTEM;
35a39691 7047
56d6aa33 7048 qc->lldd_task = NULL;
7049 spin_lock(&ipr_cmd->hrrq->_lock);
7050 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
7051 ipr_cmd->hrrq->ioa_is_dead)) {
7052 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
7053 spin_unlock(&ipr_cmd->hrrq->_lock);
7054 return AC_ERR_SYSTEM;
7055 }
7056
05a6538a 7057 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 7058 ioarcb = &ipr_cmd->ioarcb;
35a39691 7059
a32c055f
WB		 7060 if (ioa_cfg->sis64) {
7061 regs = &ipr_cmd->i.ata_ioadl.regs;
7062 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
7063 } else
7064 regs = &ioarcb->u.add_data.u.regs;
7065
7066 memset(regs, 0, sizeof(*regs));
7067 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 7068
56d6aa33 7069 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 7070 ipr_cmd->qc = qc;
7071 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 7072 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 7073 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
7074 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
7075 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 7076 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 7077
a32c055f
WB		 7078 if (ioa_cfg->sis64)
7079 ipr_build_ata_ioadl64(ipr_cmd, qc);
7080 else
7081 ipr_build_ata_ioadl(ipr_cmd, qc);
7082
35a39691
BK		 7083 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
7084 ipr_copy_sata_tf(regs, &qc->tf);
7085 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 7086 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 7087
7088 switch (qc->tf.protocol) {
7089 case ATA_PROT_NODATA:
7090 case ATA_PROT_PIO:
7091 break;
7092
7093 case ATA_PROT_DMA:
7094 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
7095 break;
7096
0dc36888
TH		 7097 case ATAPI_PROT_PIO:
7098 case ATAPI_PROT_NODATA:
35a39691
BK		 7099 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
7100 break;
7101
0dc36888 7102 case ATAPI_PROT_DMA:
35a39691
BK		 7103 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
7104 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
7105 break;
7106
7107 default:
7108 WARN_ON(1);
56d6aa33 7109 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 7110 return AC_ERR_INVALID;
35a39691
BK		 7111 }
7112
a32c055f 7113 ipr_send_command(ipr_cmd);
56d6aa33 7114 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 7115
35a39691
BK		 7116 return 0;
7117}
7118
4c9bf4e7
TH		 7119/**
7120 * ipr_qc_fill_rtf - Read result TF
7121 * @qc: ATA queued command
7122 *
7123 * Return value:
7124 * true
7125 **/
7126static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
7127{
7128 struct ipr_sata_port *sata_port = qc->ap->private_data;
7129 struct ipr_ioasa_gata *g = &sata_port->ioasa;
7130 struct ata_taskfile *tf = &qc->result_tf;
7131
7132 tf->feature = g->error;
7133 tf->nsect = g->nsect;
7134 tf->lbal = g->lbal;
7135 tf->lbam = g->lbam;
7136 tf->lbah = g->lbah;
7137 tf->device = g->device;
7138 tf->command = g->status;
7139 tf->hob_nsect = g->hob_nsect;
7140 tf->hob_lbal = g->hob_lbal;
7141 tf->hob_lbam = g->hob_lbam;
7142 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 7143
7144 return true;
7145}
7146
35a39691 7147static struct ata_port_operations ipr_sata_ops = {
35a39691 7148 .phy_reset = ipr_ata_phy_reset,
a1efdaba 7149 .hardreset = ipr_sata_reset,
35a39691 7150 .post_internal_cmd = ipr_ata_post_internal,
35a39691 7151 .qc_prep = ata_noop_qc_prep,
56d6aa33 7152 .qc_defer = ipr_qc_defer,
35a39691 7153 .qc_issue = ipr_qc_issue,
4c9bf4e7 7154 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 7155 .port_start = ata_sas_port_start,
7156 .port_stop = ata_sas_port_stop
7157};
7158
7159static struct ata_port_info sata_port_info = {
5067c046
SL		 7160 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
7161 ATA_FLAG_SAS_HOST,
0f2e0330
SS		 7162 .pio_mask = ATA_PIO4_ONLY,
7163 .mwdma_mask = ATA_MWDMA2,
7164 .udma_mask = ATA_UDMA6,
35a39691
BK		 7165 .port_ops = &ipr_sata_ops
7166};
7167
1da177e4
LT		 7168#ifdef CONFIG_PPC_PSERIES
7169static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 7170 PVR_NORTHSTAR,
7171 PVR_PULSAR,
7172 PVR_POWER4,
7173 PVR_ICESTAR,
7174 PVR_SSTAR,
7175 PVR_POWER4p,
7176 PVR_630,
7177 PVR_630p
1da177e4
LT		 7178};
7179
7180/**
7181 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
7182 * @ioa_cfg: ioa cfg struct
7183 *
7184 * Adapters that use Gemstone revision < 3.1 do not work reliably on
7185 * certain pSeries hardware. This function determines if the given
7186 * adapter is in one of these confgurations or not.
7187 *
7188 * Return value:
7189 * 1 if adapter is not supported / 0 if adapter is supported
7190 **/
7191static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
7192{
1da177e4
LT		 7193 int i;
7194
44c10138 7195 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 7196 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 7197 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 7198 return 1;
1da177e4
LT		 7199 }
7200 }
7201 return 0;
7202}
7203#else
7204#define ipr_invalid_adapter(ioa_cfg) 0
7205#endif
7206
7207/**
7208 * ipr_ioa_bringdown_done - IOA bring down completion.
7209 * @ipr_cmd: ipr command struct
7210 *
7211 * This function processes the completion of an adapter bring down.
7212 * It wakes any reset sleepers.
7213 *
7214 * Return value:
7215 * IPR_RC_JOB_RETURN
7216 **/
7217static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
7218{
7219 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 7220 int i;
1da177e4
LT		 7221
7222 ENTER;
bfae7820
BK		 7223 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
7224 ipr_trace;
b0e17a9b
BK		 7225 ioa_cfg->scsi_unblock = 1;
7226 schedule_work(&ioa_cfg->work_q);
bfae7820
BK		 7227 }
7228
1da177e4
LT		 7229 ioa_cfg->in_reset_reload = 0;
7230 ioa_cfg->reset_retries = 0;
96b04db9 7231 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7232 spin_lock(&ioa_cfg->hrrq[i]._lock);
7233 ioa_cfg->hrrq[i].ioa_is_dead = 1;
7234 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7235 }
7236 wmb();
7237
05a6538a 7238 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 7239 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 7240 LEAVE;
7241
7242 return IPR_RC_JOB_RETURN;
7243}
7244
7245/**
7246 * ipr_ioa_reset_done - IOA reset completion.
7247 * @ipr_cmd: ipr command struct
7248 *
7249 * This function processes the completion of an adapter reset.
7250 * It schedules any necessary mid-layer add/removes and
7251 * wakes any reset sleepers.
7252 *
7253 * Return value:
7254 * IPR_RC_JOB_RETURN
7255 **/
7256static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7257{
7258 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7259 struct ipr_resource_entry *res;
afc3f83c 7260 int j;
1da177e4
LT		 7261
7262 ENTER;
7263 ioa_cfg->in_reset_reload = 0;
56d6aa33 7264 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7265 spin_lock(&ioa_cfg->hrrq[j]._lock);
7266 ioa_cfg->hrrq[j].allow_cmds = 1;
7267 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7268 }
7269 wmb();
1da177e4 7270 ioa_cfg->reset_cmd = NULL;
3d1d0da6 7271 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 7272
7273 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
f688f96d 7274 if (res->add_to_ml || res->del_from_ml) {
1da177e4
LT		 7275 ipr_trace;
7276 break;
7277 }
7278 }
7279 schedule_work(&ioa_cfg->work_q);
7280
afc3f83c
BK		 7281 for (j = 0; j < IPR_NUM_HCAMS; j++) {
7282 list_del_init(&ioa_cfg->hostrcb[j]->queue);
7283 if (j < IPR_NUM_LOG_HCAMS)
7284 ipr_send_hcam(ioa_cfg,
7285 IPR_HCAM_CDB_OP_CODE_LOG_DATA,
7286 ioa_cfg->hostrcb[j]);
1da177e4 7287 else
afc3f83c
BK		 7288 ipr_send_hcam(ioa_cfg,
7289 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
7290 ioa_cfg->hostrcb[j]);
1da177e4
LT		 7291 }
7292
6bb04170 7293 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 7294 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7295
7296 ioa_cfg->reset_retries = 0;
05a6538a 7297 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 7298 wake_up_all(&ioa_cfg->reset_wait_q);
7299
b0e17a9b 7300 ioa_cfg->scsi_unblock = 1;
f688f96d 7301 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 7302 LEAVE;
7303 return IPR_RC_JOB_RETURN;
7304}
7305
7306/**
7307 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7308 * @supported_dev: supported device struct
7309 * @vpids: vendor product id struct
7310 *
7311 * Return value:
7312 * none
7313 **/
7314static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7315 struct ipr_std_inq_vpids *vpids)
7316{
7317 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7318 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7319 supported_dev->num_records = 1;
7320 supported_dev->data_length =
7321 cpu_to_be16(sizeof(struct ipr_supported_device));
7322 supported_dev->reserved = 0;
7323}
7324
7325/**
7326 * ipr_set_supported_devs - Send Set Supported Devices for a device
7327 * @ipr_cmd: ipr command struct
7328 *
a32c055f 7329 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 7330 *
7331 * Return value:
7332 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7333 **/
7334static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7335{
7336 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7337 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 7338 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7339 struct ipr_resource_entry *res = ipr_cmd->u.res;
7340
7341 ipr_cmd->job_step = ipr_ioa_reset_done;
7342
7343 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 7344 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 7345 continue;
7346
7347 ipr_cmd->u.res = res;
3e7ebdfa 7348 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 7349
7350 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7351 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7352 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7353
7354 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 7355 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 7356 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7357 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7358
a32c055f
WB		 7359 ipr_init_ioadl(ipr_cmd,
7360 ioa_cfg->vpd_cbs_dma +
7361 offsetof(struct ipr_misc_cbs, supp_dev),
7362 sizeof(struct ipr_supported_device),
7363 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7364
7365 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7366 IPR_SET_SUP_DEVICE_TIMEOUT);
7367
3e7ebdfa
WB		 7368 if (!ioa_cfg->sis64)
7369 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 7370 LEAVE;
1da177e4
LT		 7371 return IPR_RC_JOB_RETURN;
7372 }
7373
05a6538a 7374 LEAVE;
1da177e4
LT		 7375 return IPR_RC_JOB_CONTINUE;
7376}
7377
7378/**
7379 * ipr_get_mode_page - Locate specified mode page
7380 * @mode_pages: mode page buffer
7381 * @page_code: page code to find
7382 * @len: minimum required length for mode page
7383 *
7384 * Return value:
7385 * pointer to mode page / NULL on failure
7386 **/
7387static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7388 u32 page_code, u32 len)
7389{
7390 struct ipr_mode_page_hdr *mode_hdr;
7391 u32 page_length;
7392 u32 length;
7393
7394 if (!mode_pages || (mode_pages->hdr.length == 0))
7395 return NULL;
7396
7397 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7398 mode_hdr = (struct ipr_mode_page_hdr *)
7399 (mode_pages->data + mode_pages->hdr.block_desc_len);
7400
7401 while (length) {
7402 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7403 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7404 return mode_hdr;
7405 break;
7406 } else {
7407 page_length = (sizeof(struct ipr_mode_page_hdr) +
7408 mode_hdr->page_length);
7409 length -= page_length;
7410 mode_hdr = (struct ipr_mode_page_hdr *)
7411 ((unsigned long)mode_hdr + page_length);
7412 }
7413 }
7414 return NULL;
7415}
7416
7417/**
7418 * ipr_check_term_power - Check for term power errors
7419 * @ioa_cfg: ioa config struct
7420 * @mode_pages: IOAFP mode pages buffer
7421 *
7422 * Check the IOAFP's mode page 28 for term power errors
7423 *
7424 * Return value:
7425 * nothing
7426 **/
7427static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7428 struct ipr_mode_pages *mode_pages)
7429{
7430 int i;
7431 int entry_length;
7432 struct ipr_dev_bus_entry *bus;
7433 struct ipr_mode_page28 *mode_page;
7434
7435 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7436 sizeof(struct ipr_mode_page28));
7437
7438 entry_length = mode_page->entry_length;
7439
7440 bus = mode_page->bus;
7441
7442 for (i = 0; i < mode_page->num_entries; i++) {
7443 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7444 dev_err(&ioa_cfg->pdev->dev,
7445 "Term power is absent on scsi bus %d\n",
7446 bus->res_addr.bus);
7447 }
7448
7449 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7450 }
7451}
7452
7453/**
7454 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7455 * @ioa_cfg: ioa config struct
7456 *
7457 * Looks through the config table checking for SES devices. If
7458 * the SES device is in the SES table indicating a maximum SCSI
7459 * bus speed, the speed is limited for the bus.
7460 *
7461 * Return value:
7462 * none
7463 **/
7464static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7465{
7466 u32 max_xfer_rate;
7467 int i;
7468
7469 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7470 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7471 ioa_cfg->bus_attr[i].bus_width);
7472
7473 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7474 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7475 }
7476}
7477
7478/**
7479 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7480 * @ioa_cfg: ioa config struct
7481 * @mode_pages: mode page 28 buffer
7482 *
7483 * Updates mode page 28 based on driver configuration
7484 *
7485 * Return value:
7486 * none
7487 **/
7488static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7489 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7490{
7491 int i, entry_length;
7492 struct ipr_dev_bus_entry *bus;
7493 struct ipr_bus_attributes *bus_attr;
7494 struct ipr_mode_page28 *mode_page;
7495
7496 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7497 sizeof(struct ipr_mode_page28));
7498
7499 entry_length = mode_page->entry_length;
7500
7501 /* Loop for each device bus entry */
7502 for (i = 0, bus = mode_page->bus;
7503 i < mode_page->num_entries;
7504 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7505 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7506 dev_err(&ioa_cfg->pdev->dev,
7507 "Invalid resource address reported: 0x%08X\n",
7508 IPR_GET_PHYS_LOC(bus->res_addr));
7509 continue;
7510 }
7511
7512 bus_attr = &ioa_cfg->bus_attr[i];
7513 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7514 bus->bus_width = bus_attr->bus_width;
7515 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7516 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7517 if (bus_attr->qas_enabled)
7518 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7519 else
7520 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7521 }
7522}
7523
7524/**
7525 * ipr_build_mode_select - Build a mode select command
7526 * @ipr_cmd: ipr command struct
7527 * @res_handle: resource handle to send command to
7528 * @parm: Byte 2 of Mode Sense command
7529 * @dma_addr: DMA buffer address
7530 * @xfer_len: data transfer length
7531 *
7532 * Return value:
7533 * none
7534 **/
7535static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7536 __be32 res_handle, u8 parm,
7537 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7538{
1da177e4
LT		 7539 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7540
7541 ioarcb->res_handle = res_handle;
7542 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7543 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7544 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7545 ioarcb->cmd_pkt.cdb[1] = parm;
7546 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7547
a32c055f 7548 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7549}
7550
7551/**
7552 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7553 * @ipr_cmd: ipr command struct
7554 *
7555 * This function sets up the SCSI bus attributes and sends
7556 * a Mode Select for Page 28 to activate them.
7557 *
7558 * Return value:
7559 * IPR_RC_JOB_RETURN
7560 **/
7561static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7562{
7563 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7564 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7565 int length;
7566
7567 ENTER;
4733804c
BK		 7568 ipr_scsi_bus_speed_limit(ioa_cfg);
7569 ipr_check_term_power(ioa_cfg, mode_pages);
7570 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7571 length = mode_pages->hdr.length + 1;
7572 mode_pages->hdr.length = 0;
1da177e4
LT		 7573
7574 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7575 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7576 length);
7577
f72919ec
WB		 7578 ipr_cmd->job_step = ipr_set_supported_devs;
7579 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7580 struct ipr_resource_entry, queue);
1da177e4
LT		 7581 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7582
7583 LEAVE;
7584 return IPR_RC_JOB_RETURN;
7585}
7586
7587/**
7588 * ipr_build_mode_sense - Builds a mode sense command
7589 * @ipr_cmd: ipr command struct
7590 * @res: resource entry struct
7591 * @parm: Byte 2 of mode sense command
7592 * @dma_addr: DMA address of mode sense buffer
7593 * @xfer_len: Size of DMA buffer
7594 *
7595 * Return value:
7596 * none
7597 **/
7598static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7599 __be32 res_handle,
a32c055f 7600 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7601{
1da177e4
LT		 7602 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7603
7604 ioarcb->res_handle = res_handle;
7605 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7606 ioarcb->cmd_pkt.cdb[2] = parm;
7607 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7608 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7609
a32c055f 7610 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7611}
7612
dfed823e
BK		 7613/**
7614 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7615 * @ipr_cmd: ipr command struct
7616 *
7617 * This function handles the failure of an IOA bringup command.
7618 *
7619 * Return value:
7620 * IPR_RC_JOB_RETURN
7621 **/
7622static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7623{
7624 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7625 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7626
7627 dev_err(&ioa_cfg->pdev->dev,
7628 "0x%02X failed with IOASC: 0x%08X\n",
7629 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7630
7631 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7632 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e
BK		 7633 return IPR_RC_JOB_RETURN;
7634}
7635
7636/**
7637 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7638 * @ipr_cmd: ipr command struct
7639 *
7640 * This function handles the failure of a Mode Sense to the IOAFP.
7641 * Some adapters do not handle all mode pages.
7642 *
7643 * Return value:
7644 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7645 **/
7646static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7647{
f72919ec 7648 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7649 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7650
7651 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7652 ipr_cmd->job_step = ipr_set_supported_devs;
7653 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7654 struct ipr_resource_entry, queue);
dfed823e
BK		 7655 return IPR_RC_JOB_CONTINUE;
7656 }
7657
7658 return ipr_reset_cmd_failed(ipr_cmd);
7659}
7660
1da177e4
LT		 7661/**
7662 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7663 * @ipr_cmd: ipr command struct
7664 *
7665 * This function send a Page 28 mode sense to the IOA to
7666 * retrieve SCSI bus attributes.
7667 *
7668 * Return value:
7669 * IPR_RC_JOB_RETURN
7670 **/
7671static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7672{
7673 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7674
7675 ENTER;
7676 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7677 0x28, ioa_cfg->vpd_cbs_dma +
7678 offsetof(struct ipr_misc_cbs, mode_pages),
7679 sizeof(struct ipr_mode_pages));
7680
7681 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7682 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7683
7684 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7685
7686 LEAVE;
7687 return IPR_RC_JOB_RETURN;
7688}
7689
ac09c349
BK		 7690/**
7691 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7692 * @ipr_cmd: ipr command struct
7693 *
7694 * This function enables dual IOA RAID support if possible.
7695 *
7696 * Return value:
7697 * IPR_RC_JOB_RETURN
7698 **/
7699static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7700{
7701 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7702 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7703 struct ipr_mode_page24 *mode_page;
7704 int length;
7705
7706 ENTER;
7707 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7708 sizeof(struct ipr_mode_page24));
7709
7710 if (mode_page)
7711 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7712
7713 length = mode_pages->hdr.length + 1;
7714 mode_pages->hdr.length = 0;
7715
7716 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7717 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7718 length);
7719
7720 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7721 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7722
7723 LEAVE;
7724 return IPR_RC_JOB_RETURN;
7725}
7726
7727/**
7728 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7729 * @ipr_cmd: ipr command struct
7730 *
7731 * This function handles the failure of a Mode Sense to the IOAFP.
7732 * Some adapters do not handle all mode pages.
7733 *
7734 * Return value:
7735 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7736 **/
7737static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7738{
96d21f00 7739 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7740
7741 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7742 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7743 return IPR_RC_JOB_CONTINUE;
7744 }
7745
7746 return ipr_reset_cmd_failed(ipr_cmd);
7747}
7748
7749/**
7750 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7751 * @ipr_cmd: ipr command struct
7752 *
7753 * This function send a mode sense to the IOA to retrieve
7754 * the IOA Advanced Function Control mode page.
7755 *
7756 * Return value:
7757 * IPR_RC_JOB_RETURN
7758 **/
7759static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7760{
7761 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7762
7763 ENTER;
7764 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7765 0x24, ioa_cfg->vpd_cbs_dma +
7766 offsetof(struct ipr_misc_cbs, mode_pages),
7767 sizeof(struct ipr_mode_pages));
7768
7769 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7770 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7771
7772 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7773
7774 LEAVE;
7775 return IPR_RC_JOB_RETURN;
7776}
7777
1da177e4
LT		 7778/**
7779 * ipr_init_res_table - Initialize the resource table
7780 * @ipr_cmd: ipr command struct
7781 *
7782 * This function looks through the existing resource table, comparing
7783 * it with the config table. This function will take care of old/new
7784 * devices and schedule adding/removing them from the mid-layer
7785 * as appropriate.
7786 *
7787 * Return value:
7788 * IPR_RC_JOB_CONTINUE
7789 **/
7790static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7791{
7792 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7793 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7794 struct ipr_config_table_entry_wrapper cfgtew;
7795 int entries, found, flag, i;
1da177e4
LT		 7796 LIST_HEAD(old_res);
7797
7798 ENTER;
3e7ebdfa
WB		 7799 if (ioa_cfg->sis64)
7800 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7801 else
7802 flag = ioa_cfg->u.cfg_table->hdr.flags;
7803
7804 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7805 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7806
7807 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7808 list_move_tail(&res->queue, &old_res);
7809
3e7ebdfa 7810 if (ioa_cfg->sis64)
438b0331 7811 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7812 else
7813 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7814
7815 for (i = 0; i < entries; i++) {
7816 if (ioa_cfg->sis64)
7817 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7818 else
7819 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7820 found = 0;
7821
7822 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7823 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7824 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7825 found = 1;
7826 break;
7827 }
7828 }
7829
7830 if (!found) {
7831 if (list_empty(&ioa_cfg->free_res_q)) {
7832 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7833 break;
7834 }
7835
7836 found = 1;
7837 res = list_entry(ioa_cfg->free_res_q.next,
7838 struct ipr_resource_entry, queue);
7839 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7840 ipr_init_res_entry(res, &cfgtew);
1da177e4 7841 res->add_to_ml = 1;
56115598
WB		 7842 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7843 res->sdev->allow_restart = 1;
1da177e4
LT		 7844
7845 if (found)
3e7ebdfa 7846 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7847 }
7848
7849 list_for_each_entry_safe(res, temp, &old_res, queue) {
7850 if (res->sdev) {
7851 res->del_from_ml = 1;
3e7ebdfa 7852 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7853 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7854 }
7855 }
7856
3e7ebdfa
WB		 7857 list_for_each_entry_safe(res, temp, &old_res, queue) {
7858 ipr_clear_res_target(res);
7859 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7860 }
7861
ac09c349
BK		 7862 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7863 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7864 else
7865 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7866
7867 LEAVE;
7868 return IPR_RC_JOB_CONTINUE;
7869}
7870
7871/**
7872 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7873 * @ipr_cmd: ipr command struct
7874 *
7875 * This function sends a Query IOA Configuration command
7876 * to the adapter to retrieve the IOA configuration table.
7877 *
7878 * Return value:
7879 * IPR_RC_JOB_RETURN
7880 **/
7881static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7882{
7883 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7884 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7885 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7886 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7887
7888 ENTER;
ac09c349
BK		 7889 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7890 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7891 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7892 ucode_vpd->major_release, ucode_vpd->card_type,
7893 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7894 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7895 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7896
7897 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7898 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7899 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7900 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7901
3e7ebdfa 7902 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7903 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7904
7905 ipr_cmd->job_step = ipr_init_res_table;
7906
7907 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7908
7909 LEAVE;
7910 return IPR_RC_JOB_RETURN;
7911}
7912
1a47af26
GKB		 7913static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7914{
7915 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7916
7917 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7918 return IPR_RC_JOB_CONTINUE;
7919
7920 return ipr_reset_cmd_failed(ipr_cmd);
7921}
7922
7923static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7924 __be32 res_handle, u8 sa_code)
7925{
7926 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7927
7928 ioarcb->res_handle = res_handle;
7929 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7930 ioarcb->cmd_pkt.cdb[1] = sa_code;
7931 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7932}
7933
7934/**
7935 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7936 * action
7937 *
7938 * Return value:
7939 * none
7940 **/
7941static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7942{
7943 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7944 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7945 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7946
7947 ENTER;
7948
7949 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7950
7951 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7952 ipr_build_ioa_service_action(ipr_cmd,
7953 cpu_to_be32(IPR_IOA_RES_HANDLE),
7954 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7955
7956 ioarcb->cmd_pkt.cdb[2] = 0x40;
7957
7958 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7959 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7960 IPR_SET_SUP_DEVICE_TIMEOUT);
7961
7962 LEAVE;
7963 return IPR_RC_JOB_RETURN;
7964 }
7965
7966 LEAVE;
7967 return IPR_RC_JOB_CONTINUE;
7968}
7969
1da177e4
LT		 7970/**
7971 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7972 * @ipr_cmd: ipr command struct
7973 *
7974 * This utility function sends an inquiry to the adapter.
7975 *
7976 * Return value:
7977 * none
7978 **/
7979static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7980 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7981{
7982 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7983
7984 ENTER;
7985 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7986 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7987
7988 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7989 ioarcb->cmd_pkt.cdb[1] = flags;
7990 ioarcb->cmd_pkt.cdb[2] = page;
7991 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7992
a32c055f 7993 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7994
7995 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7996 LEAVE;
7997}
7998
62275040
BK		 7999/**
8000 * ipr_inquiry_page_supported - Is the given inquiry page supported
8001 * @page0: inquiry page 0 buffer
8002 * @page: page code.
8003 *
8004 * This function determines if the specified inquiry page is supported.
8005 *
8006 * Return value:
8007 * 1 if page is supported / 0 if not
8008 **/
8009static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
8010{
8011 int i;
8012
8013 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
8014 if (page0->page[i] == page)
8015 return 1;
8016
8017 return 0;
8018}
8019
1021b3ff
GKB		 8020/**
8021 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
8022 * @ipr_cmd: ipr command struct
8023 *
8024 * This function sends a Page 0xC4 inquiry to the adapter
8025 * to retrieve software VPD information.
8026 *
8027 * Return value:
8028 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8029 **/
8030static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
8031{
8032 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8033 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
8034 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
8035
8036 ENTER;
1a47af26 8037 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
1021b3ff
GKB		 8038 memset(pageC4, 0, sizeof(*pageC4));
8039
8040 if (ipr_inquiry_page_supported(page0, 0xC4)) {
8041 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
8042 (ioa_cfg->vpd_cbs_dma
8043 + offsetof(struct ipr_misc_cbs,
8044 pageC4_data)),
8045 sizeof(struct ipr_inquiry_pageC4));
8046 return IPR_RC_JOB_RETURN;
8047 }
8048
8049 LEAVE;
8050 return IPR_RC_JOB_CONTINUE;
8051}
8052
ac09c349
BK		 8053/**
8054 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
8055 * @ipr_cmd: ipr command struct
8056 *
8057 * This function sends a Page 0xD0 inquiry to the adapter
8058 * to retrieve adapter capabilities.
8059 *
8060 * Return value:
8061 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8062 **/
8063static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
8064{
8065 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8066 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
8067 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
8068
8069 ENTER;
1021b3ff 8070 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
ac09c349
BK		 8071 memset(cap, 0, sizeof(*cap));
8072
8073 if (ipr_inquiry_page_supported(page0, 0xD0)) {
8074 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
8075 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
8076 sizeof(struct ipr_inquiry_cap));
8077 return IPR_RC_JOB_RETURN;
8078 }
8079
8080 LEAVE;
8081 return IPR_RC_JOB_CONTINUE;
8082}
8083
1da177e4
LT		 8084/**
8085 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
8086 * @ipr_cmd: ipr command struct
8087 *
8088 * This function sends a Page 3 inquiry to the adapter
8089 * to retrieve software VPD information.
8090 *
8091 * Return value:
8092 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8093 **/
8094static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 8095{
8096 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 8097
8098 ENTER;
8099
ac09c349 8100 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 8101
8102 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
8103 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
8104 sizeof(struct ipr_inquiry_page3));
8105
8106 LEAVE;
8107 return IPR_RC_JOB_RETURN;
8108}
8109
8110/**
8111 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
8112 * @ipr_cmd: ipr command struct
8113 *
8114 * This function sends a Page 0 inquiry to the adapter
8115 * to retrieve supported inquiry pages.
8116 *
8117 * Return value:
8118 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8119 **/
8120static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 8121{
8122 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8123 char type[5];
8124
8125 ENTER;
8126
8127 /* Grab the type out of the VPD and store it away */
8128 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
8129 type[4] = '\0';
8130 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
8131
f688f96d
BK		 8132 if (ipr_invalid_adapter(ioa_cfg)) {
8133 dev_err(&ioa_cfg->pdev->dev,
8134 "Adapter not supported in this hardware configuration.\n");
8135
8136 if (!ipr_testmode) {
8137 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
8138 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8139 list_add_tail(&ipr_cmd->queue,
8140 &ioa_cfg->hrrq->hrrq_free_q);
8141 return IPR_RC_JOB_RETURN;
8142 }
8143 }
8144
62275040 8145 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 8146
62275040
BK		 8147 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
8148 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
8149 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 8150
8151 LEAVE;
8152 return IPR_RC_JOB_RETURN;
8153}
8154
8155/**
8156 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
8157 * @ipr_cmd: ipr command struct
8158 *
8159 * This function sends a standard inquiry to the adapter.
8160 *
8161 * Return value:
8162 * IPR_RC_JOB_RETURN
8163 **/
8164static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
8165{
8166 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8167
8168 ENTER;
62275040 8169 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 8170
8171 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
8172 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
8173 sizeof(struct ipr_ioa_vpd));
8174
8175 LEAVE;
8176 return IPR_RC_JOB_RETURN;
8177}
8178
8179/**
214777ba 8180 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 8181 * @ipr_cmd: ipr command struct
8182 *
8183 * This function send an Identify Host Request Response Queue
8184 * command to establish the HRRQ with the adapter.
8185 *
8186 * Return value:
8187 * IPR_RC_JOB_RETURN
8188 **/
214777ba 8189static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 8190{
8191 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8192 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 8193 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 8194
8195 ENTER;
05a6538a 8196 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
87adbe08
BK		 8197 if (ioa_cfg->identify_hrrq_index == 0)
8198 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
1da177e4 8199
56d6aa33 8200 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
8201 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 8202
05a6538a 8203 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
8204 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 8205
05a6538a 8206 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8207 if (ioa_cfg->sis64)
8208 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 8209
05a6538a 8210 if (ioa_cfg->nvectors == 1)
8211 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
8212 else
8213 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
8214
8215 ioarcb->cmd_pkt.cdb[2] =
8216 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
8217 ioarcb->cmd_pkt.cdb[3] =
8218 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
8219 ioarcb->cmd_pkt.cdb[4] =
8220 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
8221 ioarcb->cmd_pkt.cdb[5] =
8222 ((u64) hrrq->host_rrq_dma) & 0xff;
8223 ioarcb->cmd_pkt.cdb[7] =
8224 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
8225 ioarcb->cmd_pkt.cdb[8] =
8226 (sizeof(u32) * hrrq->size) & 0xff;
8227
8228 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 8229 ioarcb->cmd_pkt.cdb[9] =
8230 ioa_cfg->identify_hrrq_index;
1da177e4 8231
05a6538a 8232 if (ioa_cfg->sis64) {
8233 ioarcb->cmd_pkt.cdb[10] =
8234 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
8235 ioarcb->cmd_pkt.cdb[11] =
8236 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
8237 ioarcb->cmd_pkt.cdb[12] =
8238 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8239 ioarcb->cmd_pkt.cdb[13] =
8240 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8241 }
8242
8243 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 8244 ioarcb->cmd_pkt.cdb[14] =
8245 ioa_cfg->identify_hrrq_index;
05a6538a 8246
8247 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8248 IPR_INTERNAL_TIMEOUT);
8249
56d6aa33 8250 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8251 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 8252
8253 LEAVE;
8254 return IPR_RC_JOB_RETURN;
05a6538a 8255 }
8256
1da177e4 8257 LEAVE;
05a6538a 8258 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8259}
8260
8261/**
8262 * ipr_reset_timer_done - Adapter reset timer function
8263 * @ipr_cmd: ipr command struct
8264 *
8265 * Description: This function is used in adapter reset processing
8266 * for timing events. If the reset_cmd pointer in the IOA
8267 * config struct is not this adapter's we are doing nested
8268 * resets and fail_all_ops will take care of freeing the
8269 * command block.
8270 *
8271 * Return value:
8272 * none
8273 **/
8274static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8275{
8276 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8277 unsigned long lock_flags = 0;
8278
8279 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8280
8281 if (ioa_cfg->reset_cmd == ipr_cmd) {
8282 list_del(&ipr_cmd->queue);
8283 ipr_cmd->done(ipr_cmd);
8284 }
8285
8286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8287}
8288
8289/**
8290 * ipr_reset_start_timer - Start a timer for adapter reset job
8291 * @ipr_cmd: ipr command struct
8292 * @timeout: timeout value
8293 *
8294 * Description: This function is used in adapter reset processing
8295 * for timing events. If the reset_cmd pointer in the IOA
8296 * config struct is not this adapter's we are doing nested
8297 * resets and fail_all_ops will take care of freeing the
8298 * command block.
8299 *
8300 * Return value:
8301 * none
8302 **/
8303static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8304 unsigned long timeout)
8305{
05a6538a 8306
8307 ENTER;
8308 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8309 ipr_cmd->done = ipr_reset_ioa_job;
8310
8311 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8312 ipr_cmd->timer.expires = jiffies + timeout;
8313 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8314 add_timer(&ipr_cmd->timer);
8315}
8316
8317/**
8318 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8319 * @ioa_cfg: ioa cfg struct
8320 *
8321 * Return value:
8322 * nothing
8323 **/
8324static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8325{
05a6538a 8326 struct ipr_hrr_queue *hrrq;
1da177e4 8327
05a6538a 8328 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 8329 spin_lock(&hrrq->_lock);
05a6538a 8330 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8331
8332 /* Initialize Host RRQ pointers */
8333 hrrq->hrrq_start = hrrq->host_rrq;
8334 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8335 hrrq->hrrq_curr = hrrq->hrrq_start;
8336 hrrq->toggle_bit = 1;
56d6aa33 8337 spin_unlock(&hrrq->_lock);
05a6538a 8338 }
56d6aa33 8339 wmb();
05a6538a 8340
56d6aa33 8341 ioa_cfg->identify_hrrq_index = 0;
8342 if (ioa_cfg->hrrq_num == 1)
8343 atomic_set(&ioa_cfg->hrrq_index, 0);
8344 else
8345 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 8346
8347 /* Zero out config table */
3e7ebdfa 8348 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 8349}
8350
214777ba
WB		 8351/**
8352 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8353 * @ipr_cmd: ipr command struct
8354 *
8355 * Return value:
8356 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8357 **/
8358static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8359{
8360 unsigned long stage, stage_time;
8361 u32 feedback;
8362 volatile u32 int_reg;
8363 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8364 u64 maskval = 0;
8365
8366 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8367 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8368 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8369
8370 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8371
8372 /* sanity check the stage_time value */
438b0331
WB		 8373 if (stage_time == 0)
8374 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8375 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 8376 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8377 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8378 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8379
8380 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8381 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8382 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8383 stage_time = ioa_cfg->transop_timeout;
8384 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8385 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 8386 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8387 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8388 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8389 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8390 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8391 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8392 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8393 return IPR_RC_JOB_CONTINUE;
8394 }
214777ba
WB		 8395 }
8396
8397 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8398 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8399 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8400 ipr_cmd->done = ipr_reset_ioa_job;
8401 add_timer(&ipr_cmd->timer);
05a6538a 8402
8403 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 8404
8405 return IPR_RC_JOB_RETURN;
8406}
8407
1da177e4
LT		 8408/**
8409 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8410 * @ipr_cmd: ipr command struct
8411 *
8412 * This function reinitializes some control blocks and
8413 * enables destructive diagnostics on the adapter.
8414 *
8415 * Return value:
8416 * IPR_RC_JOB_RETURN
8417 **/
8418static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8419{
8420 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8421 volatile u32 int_reg;
7be96900 8422 volatile u64 maskval;
56d6aa33 8423 int i;
1da177e4
LT		 8424
8425 ENTER;
214777ba 8426 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 8427 ipr_init_ioa_mem(ioa_cfg);
8428
56d6aa33 8429 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8430 spin_lock(&ioa_cfg->hrrq[i]._lock);
8431 ioa_cfg->hrrq[i].allow_interrupts = 1;
8432 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8433 }
8434 wmb();
8701f185
WB		 8435 if (ioa_cfg->sis64) {
8436 /* Set the adapter to the correct endian mode. */
8437 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8438 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8439 }
8440
7be96900 8441 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 8442
8443 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8444 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 8445 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 8446 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8447 return IPR_RC_JOB_CONTINUE;
8448 }
8449
8450 /* Enable destructive diagnostics on IOA */
214777ba
WB		 8451 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8452
7be96900
WB		 8453 if (ioa_cfg->sis64) {
8454 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8455 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8456 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8457 } else
8458 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 8459
1da177e4
LT		 8460 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8461
8462 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8463
214777ba
WB		 8464 if (ioa_cfg->sis64) {
8465 ipr_cmd->job_step = ipr_reset_next_stage;
8466 return IPR_RC_JOB_CONTINUE;
8467 }
8468
1da177e4 8469 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 8470 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 8471 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8472 ipr_cmd->done = ipr_reset_ioa_job;
8473 add_timer(&ipr_cmd->timer);
05a6538a 8474 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8475
8476 LEAVE;
8477 return IPR_RC_JOB_RETURN;
8478}
8479
8480/**
8481 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8482 * @ipr_cmd: ipr command struct
8483 *
8484 * This function is invoked when an adapter dump has run out
8485 * of processing time.
8486 *
8487 * Return value:
8488 * IPR_RC_JOB_CONTINUE
8489 **/
8490static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8491{
8492 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8493
8494 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 8495 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8496 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 8497 ioa_cfg->sdt_state = ABORT_DUMP;
8498
4c647e90 8499 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 8500 ipr_cmd->job_step = ipr_reset_alert;
8501
8502 return IPR_RC_JOB_CONTINUE;
8503}
8504
8505/**
8506 * ipr_unit_check_no_data - Log a unit check/no data error log
8507 * @ioa_cfg: ioa config struct
8508 *
8509 * Logs an error indicating the adapter unit checked, but for some
8510 * reason, we were unable to fetch the unit check buffer.
8511 *
8512 * Return value:
8513 * nothing
8514 **/
8515static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8516{
8517 ioa_cfg->errors_logged++;
8518 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8519}
8520
8521/**
8522 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8523 * @ioa_cfg: ioa config struct
8524 *
8525 * Fetches the unit check buffer from the adapter by clocking the data
8526 * through the mailbox register.
8527 *
8528 * Return value:
8529 * nothing
8530 **/
8531static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8532{
8533 unsigned long mailbox;
8534 struct ipr_hostrcb *hostrcb;
8535 struct ipr_uc_sdt sdt;
8536 int rc, length;
65f56475 8537 u32 ioasc;
1da177e4
LT		 8538
8539 mailbox = readl(ioa_cfg->ioa_mailbox);
8540
dcbad00e 8541 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8542 ipr_unit_check_no_data(ioa_cfg);
8543 return;
8544 }
8545
8546 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8547 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8548 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8549
dcbad00e
WB		 8550 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8551 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8552 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8553 ipr_unit_check_no_data(ioa_cfg);
8554 return;
8555 }
8556
8557 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8558 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8559 length = be32_to_cpu(sdt.entry[0].end_token);
8560 else
8561 length = (be32_to_cpu(sdt.entry[0].end_token) -
8562 be32_to_cpu(sdt.entry[0].start_token)) &
8563 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8564
8565 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8566 struct ipr_hostrcb, queue);
afc3f83c 8567 list_del_init(&hostrcb->queue);
1da177e4
LT		 8568 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8569
8570 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8571 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8572 (__be32 *)&hostrcb->hcam,
8573 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8574
65f56475 8575 if (!rc) {
1da177e4 8576 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8577 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8578 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8579 ioa_cfg->sdt_state == GET_DUMP)
8580 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8581 } else
1da177e4
LT		 8582 ipr_unit_check_no_data(ioa_cfg);
8583
8584 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8585}
8586
110def85
WB		 8587/**
8588 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8589 * @ipr_cmd: ipr command struct
8590 *
8591 * Description: This function will call to get the unit check buffer.
8592 *
8593 * Return value:
8594 * IPR_RC_JOB_RETURN
8595 **/
8596static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8597{
8598 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8599
8600 ENTER;
8601 ioa_cfg->ioa_unit_checked = 0;
8602 ipr_get_unit_check_buffer(ioa_cfg);
8603 ipr_cmd->job_step = ipr_reset_alert;
8604 ipr_reset_start_timer(ipr_cmd, 0);
8605
8606 LEAVE;
8607 return IPR_RC_JOB_RETURN;
8608}
8609
f41f1d99
GKB		 8610static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8611{
8612 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8613
8614 ENTER;
8615
8616 if (ioa_cfg->sdt_state != GET_DUMP)
8617 return IPR_RC_JOB_RETURN;
8618
8619 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8620 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8621 IPR_PCII_MAILBOX_STABLE)) {
8622
8623 if (!ipr_cmd->u.time_left)
8624 dev_err(&ioa_cfg->pdev->dev,
8625 "Timed out waiting for Mailbox register.\n");
8626
8627 ioa_cfg->sdt_state = READ_DUMP;
8628 ioa_cfg->dump_timeout = 0;
8629 if (ioa_cfg->sis64)
8630 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8631 else
8632 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8633 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8634 schedule_work(&ioa_cfg->work_q);
8635
8636 } else {
8637 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8638 ipr_reset_start_timer(ipr_cmd,
8639 IPR_CHECK_FOR_RESET_TIMEOUT);
8640 }
8641
8642 LEAVE;
8643 return IPR_RC_JOB_RETURN;
8644}
8645
1da177e4
LT		 8646/**
8647 * ipr_reset_restore_cfg_space - Restore PCI config space.
8648 * @ipr_cmd: ipr command struct
8649 *
8650 * Description: This function restores the saved PCI config space of
8651 * the adapter, fails all outstanding ops back to the callers, and
8652 * fetches the dump/unit check if applicable to this reset.
8653 *
8654 * Return value:
8655 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8656 **/
8657static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8658{
8659 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8660 u32 int_reg;
1da177e4
LT		 8661
8662 ENTER;
99c965dd 8663 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8664 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8665
8666 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8667 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8668 return IPR_RC_JOB_CONTINUE;
8669 }
8670
8671 ipr_fail_all_ops(ioa_cfg);
8672
8701f185
WB		 8673 if (ioa_cfg->sis64) {
8674 /* Set the adapter to the correct endian mode. */
8675 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8676 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8677 }
8678
1da177e4 8679 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8680 if (ioa_cfg->sis64) {
8681 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8682 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8683 return IPR_RC_JOB_RETURN;
8684 } else {
8685 ioa_cfg->ioa_unit_checked = 0;
8686 ipr_get_unit_check_buffer(ioa_cfg);
8687 ipr_cmd->job_step = ipr_reset_alert;
8688 ipr_reset_start_timer(ipr_cmd, 0);
8689 return IPR_RC_JOB_RETURN;
8690 }
1da177e4
LT		 8691 }
8692
8693 if (ioa_cfg->in_ioa_bringdown) {
8694 ipr_cmd->job_step = ipr_ioa_bringdown_done;
f41f1d99
GKB		 8695 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8696 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8697 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
1da177e4
LT		 8698 } else {
8699 ipr_cmd->job_step = ipr_reset_enable_ioa;
1da177e4
LT		 8700 }
8701
438b0331 8702 LEAVE;
1da177e4
LT		 8703 return IPR_RC_JOB_CONTINUE;
8704}
8705
e619e1a7
BK		 8706/**
8707 * ipr_reset_bist_done - BIST has completed on the adapter.
8708 * @ipr_cmd: ipr command struct
8709 *
8710 * Description: Unblock config space and resume the reset process.
8711 *
8712 * Return value:
8713 * IPR_RC_JOB_CONTINUE
8714 **/
8715static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8716{
fb51ccbf
JK		 8717 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8718
e619e1a7 8719 ENTER;
fb51ccbf
JK		 8720 if (ioa_cfg->cfg_locked)
8721 pci_cfg_access_unlock(ioa_cfg->pdev);
8722 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8723 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8724 LEAVE;
8725 return IPR_RC_JOB_CONTINUE;
8726}
8727
1da177e4
LT		 8728/**
8729 * ipr_reset_start_bist - Run BIST on the adapter.
8730 * @ipr_cmd: ipr command struct
8731 *
8732 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8733 *
8734 * Return value:
8735 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8736 **/
8737static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8738{
8739 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8740 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8741
8742 ENTER;
cb237ef7
WB		 8743 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8744 writel(IPR_UPROCI_SIS64_START_BIST,
8745 ioa_cfg->regs.set_uproc_interrupt_reg32);
8746 else
8747 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8748
8749 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8750 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8751 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8752 rc = IPR_RC_JOB_RETURN;
cb237ef7 8753 } else {
fb51ccbf
JK		 8754 if (ioa_cfg->cfg_locked)
8755 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8756 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8757 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8758 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8759 }
8760
8761 LEAVE;
8762 return rc;
8763}
8764
463fc696
BK		 8765/**
8766 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8767 * @ipr_cmd: ipr command struct
8768 *
8769 * Description: This clears PCI reset to the adapter and delays two seconds.
8770 *
8771 * Return value:
8772 * IPR_RC_JOB_RETURN
8773 **/
8774static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8775{
8776 ENTER;
463fc696
BK		 8777 ipr_cmd->job_step = ipr_reset_bist_done;
8778 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8779 LEAVE;
8780 return IPR_RC_JOB_RETURN;
8781}
8782
2796ca5e
BK		 8783/**
8784 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8785 * @work: work struct
8786 *
8787 * Description: This pulses warm reset to a slot.
8788 *
8789 **/
8790static void ipr_reset_reset_work(struct work_struct *work)
8791{
8792 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8793 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8794 struct pci_dev *pdev = ioa_cfg->pdev;
8795 unsigned long lock_flags = 0;
8796
8797 ENTER;
8798 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8799 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8800 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8801
8802 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8803 if (ioa_cfg->reset_cmd == ipr_cmd)
8804 ipr_reset_ioa_job(ipr_cmd);
8805 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8806 LEAVE;
8807}
8808
463fc696
BK		 8809/**
8810 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8811 * @ipr_cmd: ipr command struct
8812 *
8813 * Description: This asserts PCI reset to the adapter.
8814 *
8815 * Return value:
8816 * IPR_RC_JOB_RETURN
8817 **/
8818static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8819{
8820 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
463fc696
BK		 8821
8822 ENTER;
2796ca5e
BK		 8823 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8824 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
463fc696 8825 ipr_cmd->job_step = ipr_reset_slot_reset_done;
463fc696
BK		 8826 LEAVE;
8827 return IPR_RC_JOB_RETURN;
8828}
8829
fb51ccbf
JK		 8830/**
8831 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8832 * @ipr_cmd: ipr command struct
8833 *
8834 * Description: This attempts to block config access to the IOA.
8835 *
8836 * Return value:
8837 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8838 **/
8839static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8840{
8841 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8842 int rc = IPR_RC_JOB_CONTINUE;
8843
8844 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8845 ioa_cfg->cfg_locked = 1;
8846 ipr_cmd->job_step = ioa_cfg->reset;
8847 } else {
8848 if (ipr_cmd->u.time_left) {
8849 rc = IPR_RC_JOB_RETURN;
8850 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8851 ipr_reset_start_timer(ipr_cmd,
8852 IPR_CHECK_FOR_RESET_TIMEOUT);
8853 } else {
8854 ipr_cmd->job_step = ioa_cfg->reset;
8855 dev_err(&ioa_cfg->pdev->dev,
8856 "Timed out waiting to lock config access. Resetting anyway.\n");
8857 }
8858 }
8859
8860 return rc;
8861}
8862
8863/**
8864 * ipr_reset_block_config_access - Block config access to the IOA
8865 * @ipr_cmd: ipr command struct
8866 *
8867 * Description: This attempts to block config access to the IOA
8868 *
8869 * Return value:
8870 * IPR_RC_JOB_CONTINUE
8871 **/
8872static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8873{
8874 ipr_cmd->ioa_cfg->cfg_locked = 0;
8875 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8876 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8877 return IPR_RC_JOB_CONTINUE;
8878}
8879
1da177e4
LT		 8880/**
8881 * ipr_reset_allowed - Query whether or not IOA can be reset
8882 * @ioa_cfg: ioa config struct
8883 *
8884 * Return value:
8885 * 0 if reset not allowed / non-zero if reset is allowed
8886 **/
8887static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8888{
8889 volatile u32 temp_reg;
8890
8891 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8892 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8893}
8894
8895/**
8896 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8897 * @ipr_cmd: ipr command struct
8898 *
8899 * Description: This function waits for adapter permission to run BIST,
8900 * then runs BIST. If the adapter does not give permission after a
8901 * reasonable time, we will reset the adapter anyway. The impact of
8902 * resetting the adapter without warning the adapter is the risk of
8903 * losing the persistent error log on the adapter. If the adapter is
8904 * reset while it is writing to the flash on the adapter, the flash
8905 * segment will have bad ECC and be zeroed.
8906 *
8907 * Return value:
8908 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8909 **/
8910static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8911{
8912 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8913 int rc = IPR_RC_JOB_RETURN;
8914
8915 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8916 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8917 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8918 } else {
fb51ccbf 8919 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8920 rc = IPR_RC_JOB_CONTINUE;
8921 }
8922
8923 return rc;
8924}
8925
8926/**
8701f185 8927 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8928 * @ipr_cmd: ipr command struct
8929 *
8930 * Description: This function alerts the adapter that it will be reset.
8931 * If memory space is not currently enabled, proceed directly
8932 * to running BIST on the adapter. The timer must always be started
8933 * so we guarantee we do not run BIST from ipr_isr.
8934 *
8935 * Return value:
8936 * IPR_RC_JOB_RETURN
8937 **/
8938static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8939{
8940 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8941 u16 cmd_reg;
8942 int rc;
8943
8944 ENTER;
8945 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8946
8947 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8948 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8949 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8950 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8951 } else {
fb51ccbf 8952 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8953 }
8954
8955 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8956 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8957
8958 LEAVE;
8959 return IPR_RC_JOB_RETURN;
8960}
8961
4fdd7c7a
BK		 8962/**
8963 * ipr_reset_quiesce_done - Complete IOA disconnect
8964 * @ipr_cmd: ipr command struct
8965 *
8966 * Description: Freeze the adapter to complete quiesce processing
8967 *
8968 * Return value:
8969 * IPR_RC_JOB_CONTINUE
8970 **/
8971static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8972{
8973 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8974
8975 ENTER;
8976 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8977 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8978 LEAVE;
8979 return IPR_RC_JOB_CONTINUE;
8980}
8981
8982/**
8983 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8984 * @ipr_cmd: ipr command struct
8985 *
8986 * Description: Ensure nothing is outstanding to the IOA and
8987 * proceed with IOA disconnect. Otherwise reset the IOA.
8988 *
8989 * Return value:
8990 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8991 **/
8992static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8993{
8994 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8995 struct ipr_cmnd *loop_cmd;
8996 struct ipr_hrr_queue *hrrq;
8997 int rc = IPR_RC_JOB_CONTINUE;
8998 int count = 0;
8999
9000 ENTER;
9001 ipr_cmd->job_step = ipr_reset_quiesce_done;
9002
9003 for_each_hrrq(hrrq, ioa_cfg) {
9004 spin_lock(&hrrq->_lock);
9005 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
9006 count++;
9007 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9008 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9009 rc = IPR_RC_JOB_RETURN;
9010 break;
9011 }
9012 spin_unlock(&hrrq->_lock);
9013
9014 if (count)
9015 break;
9016 }
9017
9018 LEAVE;
9019 return rc;
9020}
9021
9022/**
9023 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
9024 * @ipr_cmd: ipr command struct
9025 *
9026 * Description: Cancel any oustanding HCAMs to the IOA.
9027 *
9028 * Return value:
9029 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9030 **/
9031static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
9032{
9033 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9034 int rc = IPR_RC_JOB_CONTINUE;
9035 struct ipr_cmd_pkt *cmd_pkt;
9036 struct ipr_cmnd *hcam_cmd;
9037 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
9038
9039 ENTER;
9040 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
9041
9042 if (!hrrq->ioa_is_dead) {
9043 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
9044 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
9045 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
9046 continue;
9047
9048 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9049 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9050 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
9051 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
9052 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
9053 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
9054 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
9055 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
9056 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
9057 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
9058 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
9059 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
9060 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
9061 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
9062
9063 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
9064 IPR_CANCEL_TIMEOUT);
9065
9066 rc = IPR_RC_JOB_RETURN;
9067 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9068 break;
9069 }
9070 }
9071 } else
9072 ipr_cmd->job_step = ipr_reset_alert;
9073
9074 LEAVE;
9075 return rc;
9076}
9077
1da177e4
LT		 9078/**
9079 * ipr_reset_ucode_download_done - Microcode download completion
9080 * @ipr_cmd: ipr command struct
9081 *
9082 * Description: This function unmaps the microcode download buffer.
9083 *
9084 * Return value:
9085 * IPR_RC_JOB_CONTINUE
9086 **/
9087static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
9088{
9089 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9090 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
9091
d73341bf 9092 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 9093 sglist->num_sg, DMA_TO_DEVICE);
9094
9095 ipr_cmd->job_step = ipr_reset_alert;
9096 return IPR_RC_JOB_CONTINUE;
9097}
9098
9099/**
9100 * ipr_reset_ucode_download - Download microcode to the adapter
9101 * @ipr_cmd: ipr command struct
9102 *
9103 * Description: This function checks to see if it there is microcode
9104 * to download to the adapter. If there is, a download is performed.
9105 *
9106 * Return value:
9107 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9108 **/
9109static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
9110{
9111 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9112 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
9113
9114 ENTER;
9115 ipr_cmd->job_step = ipr_reset_alert;
9116
9117 if (!sglist)
9118 return IPR_RC_JOB_CONTINUE;
9119
9120 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9121 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
9122 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
9123 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
9124 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
9125 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
9126 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
9127
a32c055f
WB		 9128 if (ioa_cfg->sis64)
9129 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
9130 else
9131 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 9132 ipr_cmd->job_step = ipr_reset_ucode_download_done;
9133
9134 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
9135 IPR_WRITE_BUFFER_TIMEOUT);
9136
9137 LEAVE;
9138 return IPR_RC_JOB_RETURN;
9139}
9140
9141/**
9142 * ipr_reset_shutdown_ioa - Shutdown the adapter
9143 * @ipr_cmd: ipr command struct
9144 *
9145 * Description: This function issues an adapter shutdown of the
9146 * specified type to the specified adapter as part of the
9147 * adapter reset job.
9148 *
9149 * Return value:
9150 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9151 **/
9152static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
9153{
9154 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9155 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
9156 unsigned long timeout;
9157 int rc = IPR_RC_JOB_CONTINUE;
9158
9159 ENTER;
4fdd7c7a
BK		 9160 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
9161 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9162 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
56d6aa33 9163 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 9164 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9165 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9166 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9167 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
9168
ac09c349
BK		 9169 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
9170 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 9171 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
9172 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 9173 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
9174 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 9175 else
ac09c349 9176 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 9177
9178 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
9179
9180 rc = IPR_RC_JOB_RETURN;
9181 ipr_cmd->job_step = ipr_reset_ucode_download;
9182 } else
9183 ipr_cmd->job_step = ipr_reset_alert;
9184
9185 LEAVE;
9186 return rc;
9187}
9188
9189/**
9190 * ipr_reset_ioa_job - Adapter reset job
9191 * @ipr_cmd: ipr command struct
9192 *
9193 * Description: This function is the job router for the adapter reset job.
9194 *
9195 * Return value:
9196 * none
9197 **/
9198static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
9199{
9200 u32 rc, ioasc;
1da177e4
LT		 9201 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9202
9203 do {
96d21f00 9204 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 9205
9206 if (ioa_cfg->reset_cmd != ipr_cmd) {
9207 /*
9208 * We are doing nested adapter resets and this is
9209 * not the current reset job.
9210 */
05a6538a 9211 list_add_tail(&ipr_cmd->queue,
9212 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 9213 return;
9214 }
9215
9216 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 9217 rc = ipr_cmd->job_step_failed(ipr_cmd);
9218 if (rc == IPR_RC_JOB_RETURN)
9219 return;
1da177e4
LT		 9220 }
9221
9222 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 9223 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 9224 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 9225 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 9226}
9227
9228/**
9229 * _ipr_initiate_ioa_reset - Initiate an adapter reset
9230 * @ioa_cfg: ioa config struct
9231 * @job_step: first job step of reset job
9232 * @shutdown_type: shutdown type
9233 *
9234 * Description: This function will initiate the reset of the given adapter
9235 * starting at the selected job step.
9236 * If the caller needs to wait on the completion of the reset,
9237 * the caller must sleep on the reset_wait_q.
9238 *
9239 * Return value:
9240 * none
9241 **/
9242static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9243 int (*job_step) (struct ipr_cmnd *),
9244 enum ipr_shutdown_type shutdown_type)
9245{
9246 struct ipr_cmnd *ipr_cmd;
56d6aa33 9247 int i;
1da177e4
LT		 9248
9249 ioa_cfg->in_reset_reload = 1;
56d6aa33 9250 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9251 spin_lock(&ioa_cfg->hrrq[i]._lock);
9252 ioa_cfg->hrrq[i].allow_cmds = 0;
9253 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9254 }
9255 wmb();
b0e17a9b
BK		 9256 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9257 ioa_cfg->scsi_unblock = 0;
9258 ioa_cfg->scsi_blocked = 1;
bfae7820 9259 scsi_block_requests(ioa_cfg->host);
b0e17a9b 9260 }
1da177e4
LT		 9261
9262 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9263 ioa_cfg->reset_cmd = ipr_cmd;
9264 ipr_cmd->job_step = job_step;
9265 ipr_cmd->u.shutdown_type = shutdown_type;
9266
9267 ipr_reset_ioa_job(ipr_cmd);
9268}
9269
9270/**
9271 * ipr_initiate_ioa_reset - Initiate an adapter reset
9272 * @ioa_cfg: ioa config struct
9273 * @shutdown_type: shutdown type
9274 *
9275 * Description: This function will initiate the reset of the given adapter.
9276 * If the caller needs to wait on the completion of the reset,
9277 * the caller must sleep on the reset_wait_q.
9278 *
9279 * Return value:
9280 * none
9281 **/
9282static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9283 enum ipr_shutdown_type shutdown_type)
9284{
56d6aa33 9285 int i;
9286
9287 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 9288 return;
9289
41e9a696
BK		 9290 if (ioa_cfg->in_reset_reload) {
9291 if (ioa_cfg->sdt_state == GET_DUMP)
9292 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9293 else if (ioa_cfg->sdt_state == READ_DUMP)
9294 ioa_cfg->sdt_state = ABORT_DUMP;
9295 }
1da177e4
LT		 9296
9297 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9298 dev_err(&ioa_cfg->pdev->dev,
9299 "IOA taken offline - error recovery failed\n");
9300
9301 ioa_cfg->reset_retries = 0;
56d6aa33 9302 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9303 spin_lock(&ioa_cfg->hrrq[i]._lock);
9304 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9305 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9306 }
9307 wmb();
1da177e4
LT		 9308
9309 if (ioa_cfg->in_ioa_bringdown) {
9310 ioa_cfg->reset_cmd = NULL;
9311 ioa_cfg->in_reset_reload = 0;
9312 ipr_fail_all_ops(ioa_cfg);
9313 wake_up_all(&ioa_cfg->reset_wait_q);
9314
bfae7820 9315 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
b0e17a9b
BK		 9316 ioa_cfg->scsi_unblock = 1;
9317 schedule_work(&ioa_cfg->work_q);
bfae7820 9318 }
1da177e4
LT		 9319 return;
9320 } else {
9321 ioa_cfg->in_ioa_bringdown = 1;
9322 shutdown_type = IPR_SHUTDOWN_NONE;
9323 }
9324 }
9325
9326 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9327 shutdown_type);
9328}
9329
f8a88b19
LV		 9330/**
9331 * ipr_reset_freeze - Hold off all I/O activity
9332 * @ipr_cmd: ipr command struct
9333 *
9334 * Description: If the PCI slot is frozen, hold off all I/O
9335 * activity; then, as soon as the slot is available again,
9336 * initiate an adapter reset.
9337 */
9338static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9339{
56d6aa33 9340 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9341 int i;
9342
f8a88b19 9343 /* Disallow new interrupts, avoid loop */
56d6aa33 9344 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9345 spin_lock(&ioa_cfg->hrrq[i]._lock);
9346 ioa_cfg->hrrq[i].allow_interrupts = 0;
9347 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9348 }
9349 wmb();
05a6538a 9350 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 9351 ipr_cmd->done = ipr_reset_ioa_job;
9352 return IPR_RC_JOB_RETURN;
9353}
9354
6270e593
BK		 9355/**
9356 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9357 * @pdev: PCI device struct
9358 *
9359 * Description: This routine is called to tell us that the MMIO
9360 * access to the IOA has been restored
9361 */
9362static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9363{
9364 unsigned long flags = 0;
9365 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9366
9367 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9368 if (!ioa_cfg->probe_done)
9369 pci_save_state(pdev);
9370 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9371 return PCI_ERS_RESULT_NEED_RESET;
9372}
9373
f8a88b19
LV		 9374/**
9375 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9376 * @pdev: PCI device struct
9377 *
9378 * Description: This routine is called to tell us that the PCI bus
9379 * is down. Can't do anything here, except put the device driver
9380 * into a holding pattern, waiting for the PCI bus to come back.
9381 */
9382static void ipr_pci_frozen(struct pci_dev *pdev)
9383{
9384 unsigned long flags = 0;
9385 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9386
9387 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9388 if (ioa_cfg->probe_done)
9389 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 9390 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9391}
9392
9393/**
9394 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9395 * @pdev: PCI device struct
9396 *
9397 * Description: This routine is called by the pci error recovery
9398 * code after the PCI slot has been reset, just before we
9399 * should resume normal operations.
9400 */
9401static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9402{
9403 unsigned long flags = 0;
9404 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9405
9406 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9407 if (ioa_cfg->probe_done) {
9408 if (ioa_cfg->needs_warm_reset)
9409 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9410 else
9411 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9412 IPR_SHUTDOWN_NONE);
9413 } else
9414 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9415 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9416 return PCI_ERS_RESULT_RECOVERED;
9417}
9418
9419/**
9420 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9421 * @pdev: PCI device struct
9422 *
9423 * Description: This routine is called when the PCI bus has
9424 * permanently failed.
9425 */
9426static void ipr_pci_perm_failure(struct pci_dev *pdev)
9427{
9428 unsigned long flags = 0;
9429 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 9430 int i;
f8a88b19
LV		 9431
9432 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9433 if (ioa_cfg->probe_done) {
9434 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9435 ioa_cfg->sdt_state = ABORT_DUMP;
9436 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9437 ioa_cfg->in_ioa_bringdown = 1;
9438 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9439 spin_lock(&ioa_cfg->hrrq[i]._lock);
9440 ioa_cfg->hrrq[i].allow_cmds = 0;
9441 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9442 }
9443 wmb();
9444 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9445 } else
9446 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9447 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9448}
9449
9450/**
9451 * ipr_pci_error_detected - Called when a PCI error is detected.
9452 * @pdev: PCI device struct
9453 * @state: PCI channel state
9454 *
9455 * Description: Called when a PCI error is detected.
9456 *
9457 * Return value:
9458 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9459 */
9460static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9461 pci_channel_state_t state)
9462{
9463 switch (state) {
9464 case pci_channel_io_frozen:
9465 ipr_pci_frozen(pdev);
6270e593 9466 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 9467 case pci_channel_io_perm_failure:
9468 ipr_pci_perm_failure(pdev);
9469 return PCI_ERS_RESULT_DISCONNECT;
9470 break;
9471 default:
9472 break;
9473 }
9474 return PCI_ERS_RESULT_NEED_RESET;
9475}
9476
1da177e4
LT		 9477/**
9478 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9479 * @ioa_cfg: ioa cfg struct
9480 *
183b8021 9481 * Description: This is the second phase of adapter initialization
1da177e4
LT		 9482 * This function takes care of initilizing the adapter to the point
9483 * where it can accept new commands.
9484
9485 * Return value:
b1c11812 9486 * 0 on success / -EIO on failure
1da177e4 9487 **/
6f039790 9488static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9489{
9490 int rc = 0;
9491 unsigned long host_lock_flags = 0;
9492
9493 ENTER;
9494 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9495 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 9496 ioa_cfg->probe_done = 1;
ce155cce
BK		 9497 if (ioa_cfg->needs_hard_reset) {
9498 ioa_cfg->needs_hard_reset = 0;
9499 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9500 } else
9501 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9502 IPR_SHUTDOWN_NONE);
1da177e4 9503 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
1da177e4
LT		 9504
9505 LEAVE;
9506 return rc;
9507}
9508
9509/**
9510 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9511 * @ioa_cfg: ioa config struct
9512 *
9513 * Return value:
9514 * none
9515 **/
9516static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9517{
9518 int i;
9519
a65e8f12
BK		 9520 if (ioa_cfg->ipr_cmnd_list) {
9521 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9522 if (ioa_cfg->ipr_cmnd_list[i])
9523 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9524 ioa_cfg->ipr_cmnd_list[i],
9525 ioa_cfg->ipr_cmnd_list_dma[i]);
1da177e4 9526
a65e8f12
BK		 9527 ioa_cfg->ipr_cmnd_list[i] = NULL;
9528 }
1da177e4
LT		 9529 }
9530
9531 if (ioa_cfg->ipr_cmd_pool)
d73341bf 9532 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 9533
89aad428
BK		 9534 kfree(ioa_cfg->ipr_cmnd_list);
9535 kfree(ioa_cfg->ipr_cmnd_list_dma);
9536 ioa_cfg->ipr_cmnd_list = NULL;
9537 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 9538 ioa_cfg->ipr_cmd_pool = NULL;
9539}
9540
9541/**
9542 * ipr_free_mem - Frees memory allocated for an adapter
9543 * @ioa_cfg: ioa cfg struct
9544 *
9545 * Return value:
9546 * nothing
9547 **/
9548static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9549{
9550 int i;
9551
9552 kfree(ioa_cfg->res_entries);
d73341bf
AB		 9553 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9554 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 9555 ipr_free_cmd_blks(ioa_cfg);
05a6538a 9556
9557 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 9558 dma_free_coherent(&ioa_cfg->pdev->dev,
9559 sizeof(u32) * ioa_cfg->hrrq[i].size,
9560 ioa_cfg->hrrq[i].host_rrq,
9561 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9562
d73341bf
AB		 9563 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9564 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9565
afc3f83c 9566 for (i = 0; i < IPR_MAX_HCAMS; i++) {
d73341bf
AB		 9567 dma_free_coherent(&ioa_cfg->pdev->dev,
9568 sizeof(struct ipr_hostrcb),
9569 ioa_cfg->hostrcb[i],
9570 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 9571 }
9572
9573 ipr_free_dump(ioa_cfg);
1da177e4
LT		 9574 kfree(ioa_cfg->trace);
9575}
9576
9577/**
2796ca5e
BK		 9578 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9579 * @ioa_cfg: ipr cfg struct
1da177e4 9580 *
2796ca5e 9581 * This function frees all allocated IRQs for the
1da177e4
LT		 9582 * specified adapter.
9583 *
9584 * Return value:
9585 * none
9586 **/
2796ca5e 9587static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9588{
9589 struct pci_dev *pdev = ioa_cfg->pdev;
a299ee62 9590 int i;
1da177e4 9591
a299ee62
CH		 9592 for (i = 0; i < ioa_cfg->nvectors; i++)
9593 free_irq(pci_irq_vector(pdev, i), &ioa_cfg->hrrq[i]);
9594 pci_free_irq_vectors(pdev);
2796ca5e 9595}
05a6538a 9596
2796ca5e
BK		 9597/**
9598 * ipr_free_all_resources - Free all allocated resources for an adapter.
9599 * @ipr_cmd: ipr command struct
9600 *
9601 * This function frees all allocated resources for the
9602 * specified adapter.
9603 *
9604 * Return value:
9605 * none
9606 **/
9607static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9608{
9609 struct pci_dev *pdev = ioa_cfg->pdev;
05a6538a 9610
2796ca5e
BK		 9611 ENTER;
9612 ipr_free_irqs(ioa_cfg);
9613 if (ioa_cfg->reset_work_q)
9614 destroy_workqueue(ioa_cfg->reset_work_q);
1da177e4
LT		 9615 iounmap(ioa_cfg->hdw_dma_regs);
9616 pci_release_regions(pdev);
9617 ipr_free_mem(ioa_cfg);
9618 scsi_host_put(ioa_cfg->host);
9619 pci_disable_device(pdev);
9620 LEAVE;
9621}
9622
9623/**
9624 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9625 * @ioa_cfg: ioa config struct
9626 *
9627 * Return value:
9628 * 0 on success / -ENOMEM on allocation failure
9629 **/
6f039790 9630static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9631{
9632 struct ipr_cmnd *ipr_cmd;
9633 struct ipr_ioarcb *ioarcb;
9634 dma_addr_t dma_addr;
05a6538a 9635 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 9636
d73341bf 9637 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 9638 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 9639
9640 if (!ioa_cfg->ipr_cmd_pool)
9641 return -ENOMEM;
9642
89aad428
BK		 9643 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9644 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9645
9646 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9647 ipr_free_cmd_blks(ioa_cfg);
9648 return -ENOMEM;
9649 }
9650
05a6538a 9651 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9652 if (ioa_cfg->hrrq_num > 1) {
9653 if (i == 0) {
9654 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9655 ioa_cfg->hrrq[i].min_cmd_id = 0;
9656 ioa_cfg->hrrq[i].max_cmd_id =
9657 (entries_each_hrrq - 1);
9658 } else {
9659 entries_each_hrrq =
9660 IPR_NUM_BASE_CMD_BLKS/
9661 (ioa_cfg->hrrq_num - 1);
9662 ioa_cfg->hrrq[i].min_cmd_id =
9663 IPR_NUM_INTERNAL_CMD_BLKS +
9664 (i - 1) * entries_each_hrrq;
9665 ioa_cfg->hrrq[i].max_cmd_id =
9666 (IPR_NUM_INTERNAL_CMD_BLKS +
9667 i * entries_each_hrrq - 1);
9668 }
9669 } else {
9670 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9671 ioa_cfg->hrrq[i].min_cmd_id = 0;
9672 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9673 }
9674 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9675 }
9676
9677 BUG_ON(ioa_cfg->hrrq_num == 0);
9678
9679 i = IPR_NUM_CMD_BLKS -
9680 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9681 if (i > 0) {
9682 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9683 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9684 }
9685
1da177e4 9686 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 9687 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 9688
9689 if (!ipr_cmd) {
9690 ipr_free_cmd_blks(ioa_cfg);
9691 return -ENOMEM;
9692 }
9693
9694 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9695 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9696 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9697
9698 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9699 ipr_cmd->dma_addr = dma_addr;
9700 if (ioa_cfg->sis64)
9701 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9702 else
9703 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9704
1da177e4 9705 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9706 if (ioa_cfg->sis64) {
9707 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9708 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9709 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9710 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9711 } else {
9712 ioarcb->write_ioadl_addr =
9713 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9714 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9715 ioarcb->ioasa_host_pci_addr =
96d21f00 9716 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9717 }
1da177e4
LT		 9718 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9719 ipr_cmd->cmd_index = i;
9720 ipr_cmd->ioa_cfg = ioa_cfg;
9721 ipr_cmd->sense_buffer_dma = dma_addr +
9722 offsetof(struct ipr_cmnd, sense_buffer);
9723
05a6538a 9724 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9725 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9726 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9727 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9728 hrrq_id++;
1da177e4
LT		 9729 }
9730
9731 return 0;
9732}
9733
9734/**
9735 * ipr_alloc_mem - Allocate memory for an adapter
9736 * @ioa_cfg: ioa config struct
9737 *
9738 * Return value:
9739 * 0 on success / non-zero for error
9740 **/
6f039790 9741static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9742{
9743 struct pci_dev *pdev = ioa_cfg->pdev;
9744 int i, rc = -ENOMEM;
9745
9746 ENTER;
0bc42e35 9747 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9748 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9749
9750 if (!ioa_cfg->res_entries)
9751 goto out;
9752
3e7ebdfa 9753 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9754 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9755 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9756 }
1da177e4 9757
d73341bf
AB		 9758 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9759 sizeof(struct ipr_misc_cbs),
9760 &ioa_cfg->vpd_cbs_dma,
9761 GFP_KERNEL);
1da177e4
LT		 9762
9763 if (!ioa_cfg->vpd_cbs)
9764 goto out_free_res_entries;
9765
9766 if (ipr_alloc_cmd_blks(ioa_cfg))
9767 goto out_free_vpd_cbs;
9768
05a6538a 9769 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9770 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9771 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9772 &ioa_cfg->hrrq[i].host_rrq_dma,
9773 GFP_KERNEL);
05a6538a 9774
9775 if (!ioa_cfg->hrrq[i].host_rrq) {
9776 while (--i > 0)
d73341bf 9777 dma_free_coherent(&pdev->dev,
05a6538a 9778 sizeof(u32) * ioa_cfg->hrrq[i].size,
9779 ioa_cfg->hrrq[i].host_rrq,
9780 ioa_cfg->hrrq[i].host_rrq_dma);
9781 goto out_ipr_free_cmd_blocks;
9782 }
9783 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9784 }
1da177e4 9785
d73341bf
AB		 9786 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9787 ioa_cfg->cfg_table_size,
9788 &ioa_cfg->cfg_table_dma,
9789 GFP_KERNEL);
1da177e4 9790
3e7ebdfa 9791 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9792 goto out_free_host_rrq;
9793
afc3f83c 9794 for (i = 0; i < IPR_MAX_HCAMS; i++) {
d73341bf
AB		 9795 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9796 sizeof(struct ipr_hostrcb),
9797 &ioa_cfg->hostrcb_dma[i],
9798 GFP_KERNEL);
1da177e4
LT		 9799
9800 if (!ioa_cfg->hostrcb[i])
9801 goto out_free_hostrcb_dma;
9802
9803 ioa_cfg->hostrcb[i]->hostrcb_dma =
9804 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9805 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9806 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9807 }
9808
0bc42e35 9809 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9810 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9811
9812 if (!ioa_cfg->trace)
9813 goto out_free_hostrcb_dma;
9814
1da177e4
LT		 9815 rc = 0;
9816out:
9817 LEAVE;
9818 return rc;
9819
9820out_free_hostrcb_dma:
9821 while (i-- > 0) {
d73341bf
AB		 9822 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9823 ioa_cfg->hostrcb[i],
9824 ioa_cfg->hostrcb_dma[i]);
1da177e4 9825 }
d73341bf
AB		 9826 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9827 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9828out_free_host_rrq:
05a6538a 9829 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9830 dma_free_coherent(&pdev->dev,
9831 sizeof(u32) * ioa_cfg->hrrq[i].size,
9832 ioa_cfg->hrrq[i].host_rrq,
9833 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9834 }
1da177e4
LT		 9835out_ipr_free_cmd_blocks:
9836 ipr_free_cmd_blks(ioa_cfg);
9837out_free_vpd_cbs:
d73341bf
AB		 9838 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9839 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9840out_free_res_entries:
9841 kfree(ioa_cfg->res_entries);
9842 goto out;
9843}
9844
9845/**
9846 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9847 * @ioa_cfg: ioa config struct
9848 *
9849 * Return value:
9850 * none
9851 **/
6f039790 9852static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9853{
9854 int i;
9855
9856 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9857 ioa_cfg->bus_attr[i].bus = i;
9858 ioa_cfg->bus_attr[i].qas_enabled = 0;
9859 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9860 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9861 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9862 else
9863 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9864 }
9865}
9866
6270e593
BK		 9867/**
9868 * ipr_init_regs - Initialize IOA registers
9869 * @ioa_cfg: ioa config struct
9870 *
9871 * Return value:
9872 * none
9873 **/
9874static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9875{
9876 const struct ipr_interrupt_offsets *p;
9877 struct ipr_interrupts *t;
9878 void __iomem *base;
9879
9880 p = &ioa_cfg->chip_cfg->regs;
9881 t = &ioa_cfg->regs;
9882 base = ioa_cfg->hdw_dma_regs;
9883
9884 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9885 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9886 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9887 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9888 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9889 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9890 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9891 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9892 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9893 t->ioarrin_reg = base + p->ioarrin_reg;
9894 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9895 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9896 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9897 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9898 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9899 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9900
9901 if (ioa_cfg->sis64) {
9902 t->init_feedback_reg = base + p->init_feedback_reg;
9903 t->dump_addr_reg = base + p->dump_addr_reg;
9904 t->dump_data_reg = base + p->dump_data_reg;
9905 t->endian_swap_reg = base + p->endian_swap_reg;
9906 }
9907}
9908
1da177e4
LT		 9909/**
9910 * ipr_init_ioa_cfg - Initialize IOA config struct
9911 * @ioa_cfg: ioa config struct
9912 * @host: scsi host struct
9913 * @pdev: PCI dev struct
9914 *
9915 * Return value:
9916 * none
9917 **/
6f039790
GKH		 9918static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9919 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9920{
6270e593 9921 int i;
1da177e4
LT		 9922
9923 ioa_cfg->host = host;
9924 ioa_cfg->pdev = pdev;
9925 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9926 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9927 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9928 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9929 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9930 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9931 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9932 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9933
1da177e4
LT		 9934 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9935 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
afc3f83c 9936 INIT_LIST_HEAD(&ioa_cfg->hostrcb_report_q);
1da177e4
LT		 9937 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9938 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9939 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9940 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9941 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9942 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9943 ioa_cfg->sdt_state = INACTIVE;
9944
9945 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9946 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9947
3e7ebdfa
WB		 9948 if (ioa_cfg->sis64) {
9949 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9950 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9951 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9952 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9953 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9954 + ((sizeof(struct ipr_config_table_entry64)
9955 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9956 } else {
9957 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9958 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9959 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9960 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9961 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9962 + ((sizeof(struct ipr_config_table_entry)
9963 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9964 }
6270e593 9965
f688f96d 9966 host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9967 host->unique_id = host->host_no;
9968 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9969 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9970 pci_set_drvdata(pdev, ioa_cfg);
9971
6270e593
BK		 9972 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9973 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9974 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9975 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9976 if (i == 0)
9977 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9978 else
9979 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9980 }
1da177e4
LT		 9981}
9982
9983/**
1be7bd82 9984 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9985 * @dev_id: PCI device id struct
9986 *
9987 * Return value:
1be7bd82 9988 * ptr to chip information on success / NULL on failure
1da177e4 9989 **/
6f039790 9990static const struct ipr_chip_t *
1be7bd82 9991ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9992{
9993 int i;
9994
1da177e4
LT		 9995 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9996 if (ipr_chip[i].vendor == dev_id->vendor &&
9997 ipr_chip[i].device == dev_id->device)
1be7bd82 9998 return &ipr_chip[i];
1da177e4
LT		 9999 return NULL;
10000}
10001
6270e593
BK		 10002/**
10003 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
10004 * during probe time
10005 * @ioa_cfg: ioa config struct
10006 *
10007 * Return value:
10008 * None
10009 **/
10010static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
10011{
10012 struct pci_dev *pdev = ioa_cfg->pdev;
10013
10014 if (pci_channel_offline(pdev)) {
10015 wait_event_timeout(ioa_cfg->eeh_wait_q,
10016 !pci_channel_offline(pdev),
10017 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
10018 pci_restore_state(pdev);
10019 }
10020}
10021
05a6538a 10022static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
10023{
10024 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
10025
10026 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
10027 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
10028 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
10029 ioa_cfg->vectors_info[vec_idx].
10030 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
10031 }
10032}
10033
a299ee62
CH		 10034static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg,
10035 struct pci_dev *pdev)
05a6538a 10036{
10037 int i, rc;
10038
10039 for (i = 1; i < ioa_cfg->nvectors; i++) {
a299ee62 10040 rc = request_irq(pci_irq_vector(pdev, i),
05a6538a 10041 ipr_isr_mhrrq,
10042 0,
10043 ioa_cfg->vectors_info[i].desc,
10044 &ioa_cfg->hrrq[i]);
10045 if (rc) {
10046 while (--i >= 0)
a299ee62 10047 free_irq(pci_irq_vector(pdev, i),
05a6538a 10048 &ioa_cfg->hrrq[i]);
10049 return rc;
10050 }
10051 }
10052 return 0;
10053}
10054
95fecd90
WB		 10055/**
10056 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
10057 * @pdev: PCI device struct
10058 *
10059 * Description: Simply set the msi_received flag to 1 indicating that
10060 * Message Signaled Interrupts are supported.
10061 *
10062 * Return value:
10063 * 0 on success / non-zero on failure
10064 **/
6f039790 10065static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 10066{
10067 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
10068 unsigned long lock_flags = 0;
10069 irqreturn_t rc = IRQ_HANDLED;
10070
05a6538a 10071 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 10072 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10073
10074 ioa_cfg->msi_received = 1;
10075 wake_up(&ioa_cfg->msi_wait_q);
10076
10077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10078 return rc;
10079}
10080
10081/**
10082 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
10083 * @pdev: PCI device struct
10084 *
a299ee62 10085 * Description: This routine sets up and initiates a test interrupt to determine
95fecd90
WB		 10086 * if the interrupt is received via the ipr_test_intr() service routine.
10087 * If the tests fails, the driver will fall back to LSI.
10088 *
10089 * Return value:
10090 * 0 on success / non-zero on failure
10091 **/
6f039790 10092static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 10093{
10094 int rc;
10095 volatile u32 int_reg;
10096 unsigned long lock_flags = 0;
a299ee62 10097 int irq = pci_irq_vector(pdev, 0);
95fecd90
WB		 10098
10099 ENTER;
10100
10101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10102 init_waitqueue_head(&ioa_cfg->msi_wait_q);
10103 ioa_cfg->msi_received = 0;
10104 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 10105 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 10106 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
10107 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10108
a299ee62 10109 rc = request_irq(irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90 10110 if (rc) {
a299ee62 10111 dev_err(&pdev->dev, "Can not assign irq %d\n", irq);
95fecd90
WB		 10112 return rc;
10113 } else if (ipr_debug)
a299ee62 10114 dev_info(&pdev->dev, "IRQ assigned: %d\n", irq);
95fecd90 10115
214777ba 10116 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 10117 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
10118 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 10119 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 10120 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
10121
95fecd90
WB		 10122 if (!ioa_cfg->msi_received) {
10123 /* MSI test failed */
10124 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
10125 rc = -EOPNOTSUPP;
10126 } else if (ipr_debug)
10127 dev_info(&pdev->dev, "MSI test succeeded.\n");
10128
10129 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10130
a299ee62 10131 free_irq(irq, ioa_cfg);
95fecd90
WB		 10132
10133 LEAVE;
10134
10135 return rc;
10136}
10137
05a6538a 10138 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 10139 * @pdev: PCI device struct
10140 * @dev_id: PCI device id struct
10141 *
10142 * Return value:
10143 * 0 on success / non-zero on failure
10144 **/
6f039790
GKH		 10145static int ipr_probe_ioa(struct pci_dev *pdev,
10146 const struct pci_device_id *dev_id)
1da177e4
LT		 10147{
10148 struct ipr_ioa_cfg *ioa_cfg;
10149 struct Scsi_Host *host;
10150 unsigned long ipr_regs_pci;
10151 void __iomem *ipr_regs;
a2a65a3e 10152 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 10153 volatile u32 mask, uproc, interrupts;
feccada9 10154 unsigned long lock_flags, driver_lock_flags;
a299ee62 10155 unsigned int irq_flag;
1da177e4
LT		 10156
10157 ENTER;
10158
1da177e4 10159 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 10160 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
10161
10162 if (!host) {
10163 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
10164 rc = -ENOMEM;
6270e593 10165 goto out;
1da177e4
LT		 10166 }
10167
10168 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
10169 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 10170 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 10171
1be7bd82 10172 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 10173
1be7bd82 10174 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 10175 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
10176 dev_id->vendor, dev_id->device);
10177 goto out_scsi_host_put;
10178 }
10179
a32c055f
WB		 10180 /* set SIS 32 or SIS 64 */
10181 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 10182 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 10183 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 10184 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 10185
5469cb5b
BK		 10186 if (ipr_transop_timeout)
10187 ioa_cfg->transop_timeout = ipr_transop_timeout;
10188 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10189 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10190 else
10191 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10192
44c10138 10193 ioa_cfg->revid = pdev->revision;
463fc696 10194
6270e593
BK		 10195 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10196
1da177e4
LT		 10197 ipr_regs_pci = pci_resource_start(pdev, 0);
10198
10199 rc = pci_request_regions(pdev, IPR_NAME);
10200 if (rc < 0) {
10201 dev_err(&pdev->dev,
10202 "Couldn't register memory range of registers\n");
10203 goto out_scsi_host_put;
10204 }
10205
6270e593
BK		 10206 rc = pci_enable_device(pdev);
10207
10208 if (rc || pci_channel_offline(pdev)) {
10209 if (pci_channel_offline(pdev)) {
10210 ipr_wait_for_pci_err_recovery(ioa_cfg);
10211 rc = pci_enable_device(pdev);
10212 }
10213
10214 if (rc) {
10215 dev_err(&pdev->dev, "Cannot enable adapter\n");
10216 ipr_wait_for_pci_err_recovery(ioa_cfg);
10217 goto out_release_regions;
10218 }
10219 }
10220
25729a7f 10221 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 10222
10223 if (!ipr_regs) {
10224 dev_err(&pdev->dev,
10225 "Couldn't map memory range of registers\n");
10226 rc = -ENOMEM;
6270e593 10227 goto out_disable;
1da177e4
LT		 10228 }
10229
10230 ioa_cfg->hdw_dma_regs = ipr_regs;
10231 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10232 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10233
6270e593 10234 ipr_init_regs(ioa_cfg);
1da177e4 10235
a32c055f 10236 if (ioa_cfg->sis64) {
869404cb 10237 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 10238 if (rc < 0) {
869404cb
AB		 10239 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10240 rc = dma_set_mask_and_coherent(&pdev->dev,
10241 DMA_BIT_MASK(32));
a32c055f 10242 }
a32c055f 10243 } else
869404cb 10244 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 10245
1da177e4 10246 if (rc < 0) {
869404cb 10247 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 10248 goto cleanup_nomem;
10249 }
10250
10251 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10252 ioa_cfg->chip_cfg->cache_line_size);
10253
10254 if (rc != PCIBIOS_SUCCESSFUL) {
10255 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 10256 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 10257 rc = -EIO;
10258 goto cleanup_nomem;
10259 }
10260
6270e593
BK		 10261 /* Issue MMIO read to ensure card is not in EEH */
10262 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10263 ipr_wait_for_pci_err_recovery(ioa_cfg);
10264
05a6538a 10265 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10266 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10267 IPR_MAX_MSIX_VECTORS);
10268 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10269 }
10270
a299ee62
CH		 10271 irq_flag = PCI_IRQ_LEGACY;
10272 if (ioa_cfg->ipr_chip->has_msi)
10273 irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX;
10274 rc = pci_alloc_irq_vectors(pdev, 1, ipr_number_of_msix, irq_flag);
10275 if (rc < 0) {
10276 ipr_wait_for_pci_err_recovery(ioa_cfg);
10277 goto cleanup_nomem;
05a6538a 10278 }
a299ee62
CH		 10279 ioa_cfg->nvectors = rc;
10280
10281 if (!pdev->msi_enabled && !pdev->msix_enabled)
10282 ioa_cfg->clear_isr = 1;
05a6538a 10283
6270e593
BK		 10284 pci_set_master(pdev);
10285
10286 if (pci_channel_offline(pdev)) {
10287 ipr_wait_for_pci_err_recovery(ioa_cfg);
10288 pci_set_master(pdev);
10289 if (pci_channel_offline(pdev)) {
10290 rc = -EIO;
10291 goto out_msi_disable;
10292 }
10293 }
10294
a299ee62 10295 if (pdev->msi_enabled || pdev->msix_enabled) {
95fecd90 10296 rc = ipr_test_msi(ioa_cfg, pdev);
a299ee62
CH		 10297 switch (rc) {
10298 case 0:
10299 dev_info(&pdev->dev,
10300 "Request for %d MSI%ss succeeded.", ioa_cfg->nvectors,
10301 pdev->msix_enabled ? "-X" : "");
10302 break;
10303 case -EOPNOTSUPP:
6270e593 10304 ipr_wait_for_pci_err_recovery(ioa_cfg);
a299ee62 10305 pci_free_irq_vectors(pdev);
05a6538a 10306
05a6538a 10307 ioa_cfg->nvectors = 1;
9dadfb97 10308 ioa_cfg->clear_isr = 1;
a299ee62
CH		 10309 break;
10310 default:
95fecd90 10311 goto out_msi_disable;
05a6538a 10312 }
10313 }
10314
10315 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10316 (unsigned int)num_online_cpus(),
10317 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 10318
1da177e4 10319 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 10320 goto out_msi_disable;
1da177e4
LT		 10321
10322 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 10323 goto out_msi_disable;
1da177e4
LT		 10324
10325 rc = ipr_alloc_mem(ioa_cfg);
10326 if (rc < 0) {
10327 dev_err(&pdev->dev,
10328 "Couldn't allocate enough memory for device driver!\n");
f170c684 10329 goto out_msi_disable;
1da177e4
LT		 10330 }
10331
6270e593
BK		 10332 /* Save away PCI config space for use following IOA reset */
10333 rc = pci_save_state(pdev);
10334
10335 if (rc != PCIBIOS_SUCCESSFUL) {
10336 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10337 rc = -EIO;
10338 goto cleanup_nolog;
10339 }
10340
ce155cce
BK		 10341 /*
10342 * If HRRQ updated interrupt is not masked, or reset alert is set,
10343 * the card is in an unknown state and needs a hard reset
10344 */
214777ba
WB		 10345 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10346 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10347 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 10348 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10349 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 10350 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 10351 ioa_cfg->needs_hard_reset = 1;
10352 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10353 ioa_cfg->ioa_unit_checked = 1;
ce155cce 10354
56d6aa33 10355 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10356 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 10357 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10358
a299ee62 10359 if (pdev->msi_enabled || pdev->msix_enabled) {
05a6538a 10360 name_msi_vectors(ioa_cfg);
a299ee62 10361 rc = request_irq(pci_irq_vector(pdev, 0), ipr_isr, 0,
05a6538a 10362 ioa_cfg->vectors_info[0].desc,
10363 &ioa_cfg->hrrq[0]);
10364 if (!rc)
a299ee62 10365 rc = ipr_request_other_msi_irqs(ioa_cfg, pdev);
05a6538a 10366 } else {
10367 rc = request_irq(pdev->irq, ipr_isr,
10368 IRQF_SHARED,
10369 IPR_NAME, &ioa_cfg->hrrq[0]);
10370 }
1da177e4
LT		 10371 if (rc) {
10372 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10373 pdev->irq, rc);
10374 goto cleanup_nolog;
10375 }
10376
463fc696
BK		 10377 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10378 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10379 ioa_cfg->needs_warm_reset = 1;
10380 ioa_cfg->reset = ipr_reset_slot_reset;
2796ca5e
BK		 10381
10382 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10383 WQ_MEM_RECLAIM, host->host_no);
10384
10385 if (!ioa_cfg->reset_work_q) {
10386 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
c8e18acc 10387 rc = -ENOMEM;
2796ca5e
BK		 10388 goto out_free_irq;
10389 }
463fc696
BK		 10390 } else
10391 ioa_cfg->reset = ipr_reset_start_bist;
10392
feccada9 10393 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10394 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 10395 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10396
10397 LEAVE;
10398out:
10399 return rc;
10400
2796ca5e
BK		 10401out_free_irq:
10402 ipr_free_irqs(ioa_cfg);
1da177e4
LT		 10403cleanup_nolog:
10404 ipr_free_mem(ioa_cfg);
95fecd90 10405out_msi_disable:
6270e593 10406 ipr_wait_for_pci_err_recovery(ioa_cfg);
a299ee62 10407 pci_free_irq_vectors(pdev);
f170c684
JL		 10408cleanup_nomem:
10409 iounmap(ipr_regs);
6270e593
BK		 10410out_disable:
10411 pci_disable_device(pdev);
1da177e4
LT		 10412out_release_regions:
10413 pci_release_regions(pdev);
10414out_scsi_host_put:
10415 scsi_host_put(host);
1da177e4
LT		 10416 goto out;
10417}
10418
1da177e4
LT		 10419/**
10420 * ipr_initiate_ioa_bringdown - Bring down an adapter
10421 * @ioa_cfg: ioa config struct
10422 * @shutdown_type: shutdown type
10423 *
10424 * Description: This function will initiate bringing down the adapter.
10425 * This consists of issuing an IOA shutdown to the adapter
10426 * to flush the cache, and running BIST.
10427 * If the caller needs to wait on the completion of the reset,
10428 * the caller must sleep on the reset_wait_q.
10429 *
10430 * Return value:
10431 * none
10432 **/
10433static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10434 enum ipr_shutdown_type shutdown_type)
10435{
10436 ENTER;
10437 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10438 ioa_cfg->sdt_state = ABORT_DUMP;
10439 ioa_cfg->reset_retries = 0;
10440 ioa_cfg->in_ioa_bringdown = 1;
10441 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10442 LEAVE;
10443}
10444
10445/**
10446 * __ipr_remove - Remove a single adapter
10447 * @pdev: pci device struct
10448 *
10449 * Adapter hot plug remove entry point.
10450 *
10451 * Return value:
10452 * none
10453 **/
10454static void __ipr_remove(struct pci_dev *pdev)
10455{
10456 unsigned long host_lock_flags = 0;
10457 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 10458 int i;
feccada9 10459 unsigned long driver_lock_flags;
1da177e4
LT		 10460 ENTER;
10461
10462 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 10463 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10464 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10465 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10466 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10467 }
10468
bfae7820
BK		 10469 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10470 spin_lock(&ioa_cfg->hrrq[i]._lock);
10471 ioa_cfg->hrrq[i].removing_ioa = 1;
10472 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10473 }
10474 wmb();
1da177e4
LT		 10475 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10476
10477 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10478 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 10479 flush_work(&ioa_cfg->work_q);
2796ca5e
BK		 10480 if (ioa_cfg->reset_work_q)
10481 flush_workqueue(ioa_cfg->reset_work_q);
9077a944 10482 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 10483 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10484
feccada9 10485 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10486 list_del(&ioa_cfg->queue);
feccada9 10487 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10488
10489 if (ioa_cfg->sdt_state == ABORT_DUMP)
10490 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10491 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10492
10493 ipr_free_all_resources(ioa_cfg);
10494
10495 LEAVE;
10496}
10497
10498/**
10499 * ipr_remove - IOA hot plug remove entry point
10500 * @pdev: pci device struct
10501 *
10502 * Adapter hot plug remove entry point.
10503 *
10504 * Return value:
10505 * none
10506 **/
6f039790 10507static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 10508{
10509 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10510
10511 ENTER;
10512
ee959b00 10513 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10514 &ipr_trace_attr);
ee959b00 10515 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10516 &ipr_dump_attr);
afc3f83c
BK		 10517 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10518 &ipr_ioa_async_err_log);
1da177e4
LT		 10519 scsi_remove_host(ioa_cfg->host);
10520
10521 __ipr_remove(pdev);
10522
10523 LEAVE;
10524}
10525
10526/**
10527 * ipr_probe - Adapter hot plug add entry point
10528 *
10529 * Return value:
10530 * 0 on success / non-zero on failure
10531 **/
6f039790 10532static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 10533{
10534 struct ipr_ioa_cfg *ioa_cfg;
b195d5e2 10535 unsigned long flags;
b53d124a 10536 int rc, i;
1da177e4
LT		 10537
10538 rc = ipr_probe_ioa(pdev, dev_id);
10539
10540 if (rc)
10541 return rc;
10542
10543 ioa_cfg = pci_get_drvdata(pdev);
10544 rc = ipr_probe_ioa_part2(ioa_cfg);
10545
10546 if (rc) {
10547 __ipr_remove(pdev);
10548 return rc;
10549 }
10550
10551 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10552
10553 if (rc) {
10554 __ipr_remove(pdev);
10555 return rc;
10556 }
10557
ee959b00 10558 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10559 &ipr_trace_attr);
10560
10561 if (rc) {
10562 scsi_remove_host(ioa_cfg->host);
10563 __ipr_remove(pdev);
10564 return rc;
10565 }
10566
afc3f83c
BK		 10567 rc = sysfs_create_bin_file(&ioa_cfg->host->shost_dev.kobj,
10568 &ipr_ioa_async_err_log);
10569
10570 if (rc) {
10571 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10572 &ipr_dump_attr);
10573 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10574 &ipr_trace_attr);
10575 scsi_remove_host(ioa_cfg->host);
10576 __ipr_remove(pdev);
10577 return rc;
10578 }
10579
ee959b00 10580 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10581 &ipr_dump_attr);
10582
10583 if (rc) {
afc3f83c
BK		 10584 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10585 &ipr_ioa_async_err_log);
ee959b00 10586 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10587 &ipr_trace_attr);
10588 scsi_remove_host(ioa_cfg->host);
10589 __ipr_remove(pdev);
10590 return rc;
10591 }
a3d1ddd9
BK		 10592 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10593 ioa_cfg->scan_enabled = 1;
10594 schedule_work(&ioa_cfg->work_q);
10595 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
1da177e4 10596
b53d124a 10597 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10598
89f8b33c 10599 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10600 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
511cbce2 10601 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
b53d124a 10602 ioa_cfg->iopoll_weight, ipr_iopoll);
b53d124a 10603 }
10604 }
10605
a3d1ddd9
BK		 10606 scsi_scan_host(ioa_cfg->host);
10607
1da177e4
LT		 10608 return 0;
10609}
10610
10611/**
10612 * ipr_shutdown - Shutdown handler.
d18c3db5 10613 * @pdev: pci device struct
1da177e4
LT		 10614 *
10615 * This function is invoked upon system shutdown/reboot. It will issue
10616 * an adapter shutdown to the adapter to flush the write cache.
10617 *
10618 * Return value:
10619 * none
10620 **/
d18c3db5 10621static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 10622{
d18c3db5 10623 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 10624 unsigned long lock_flags = 0;
4fdd7c7a 10625 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
b53d124a 10626 int i;
1da177e4
LT		 10627
10628 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 10629 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10630 ioa_cfg->iopoll_weight = 0;
10631 for (i = 1; i < ioa_cfg->hrrq_num; i++)
511cbce2 10632 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
b53d124a 10633 }
10634
203fa3fe 10635 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10636 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10637 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10638 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10639 }
10640
4fdd7c7a
BK		 10641 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10642 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10643
10644 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
1da177e4
LT		 10645 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10646 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4fdd7c7a 10647 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
2796ca5e 10648 ipr_free_irqs(ioa_cfg);
4fdd7c7a
BK		 10649 pci_disable_device(ioa_cfg->pdev);
10650 }
1da177e4
LT		 10651}
10652
6f039790 10653static struct pci_device_id ipr_pci_table[] = {
1da177e4 10654 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10655 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10656 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10657 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10658 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10659 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10660 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10661 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10662 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10663 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10664 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10665 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10666 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10667 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10668 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10669 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10670 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10671 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10672 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10673 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10674 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10675 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10676 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10677 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10678 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10679 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10680 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10681 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10682 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10683 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10684 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10685 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10686 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10687 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10688 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10689 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10690 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10691 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10692 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10693 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10694 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10695 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10696 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10697 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10698 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10699 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10700 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10701 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10702 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10703 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10704 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10705 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10706 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10707 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10708 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10709 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10710 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10711 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10712 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10713 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10714 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10715 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10716 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10717 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10718 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10719 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10720 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10721 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10722 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10723 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10724 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10725 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10726 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10727 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10728 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10729 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10730 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10731 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10732 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10733 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10734 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10735 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10736 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10737 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10738 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10739 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10740 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10741 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10742 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10743 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10744 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10745 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10746 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10747 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10748 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10749 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10750 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10751 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10752 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10753 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10754 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10755 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10756 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10757 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10758 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
00da9ffa
WX		 10759 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10760 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 },
10761 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10762 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 },
1da177e4
LT		 10763 { }
10764};
10765MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10766
a55b2d21 10767static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10768 .error_detected = ipr_pci_error_detected,
6270e593 10769 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10770 .slot_reset = ipr_pci_slot_reset,
10771};
10772
1da177e4
LT		 10773static struct pci_driver ipr_driver = {
10774 .name = IPR_NAME,
10775 .id_table = ipr_pci_table,
10776 .probe = ipr_probe,
6f039790 10777 .remove = ipr_remove,
d18c3db5 10778 .shutdown = ipr_shutdown,
f8a88b19 10779 .err_handler = &ipr_err_handler,
1da177e4
LT		 10780};
10781
f72919ec
WB		 10782/**
10783 * ipr_halt_done - Shutdown prepare completion
10784 *
10785 * Return value:
10786 * none
10787 **/
10788static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10789{
05a6538a 10790 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10791}
10792
10793/**
10794 * ipr_halt - Issue shutdown prepare to all adapters
10795 *
10796 * Return value:
10797 * NOTIFY_OK on success / NOTIFY_DONE on failure
10798 **/
10799static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10800{
10801 struct ipr_cmnd *ipr_cmd;
10802 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10803 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10804
10805 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10806 return NOTIFY_DONE;
10807
feccada9 10808 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10809
10810 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10811 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4fdd7c7a
BK		 10812 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10813 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
f72919ec
WB		 10814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10815 continue;
10816 }
10817
10818 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10819 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10820 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10821 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10822 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10823
10824 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10825 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10826 }
feccada9 10827 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10828
10829 return NOTIFY_OK;
10830}
10831
10832static struct notifier_block ipr_notifier = {
10833 ipr_halt, NULL, 0
10834};
10835
1da177e4
LT		 10836/**
10837 * ipr_init - Module entry point
10838 *
10839 * Return value:
10840 * 0 on success / negative value on failure
10841 **/
10842static int __init ipr_init(void)
10843{
10844 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10845 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10846
f72919ec 10847 register_reboot_notifier(&ipr_notifier);
dcbccbde 10848 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10849}
10850
10851/**
10852 * ipr_exit - Module unload
10853 *
10854 * Module unload entry point.
10855 *
10856 * Return value:
10857 * none
10858 **/
10859static void __exit ipr_exit(void)
10860{
f72919ec 10861 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10862 pci_unregister_driver(&ipr_driver);
10863}
10864
10865module_init(ipr_init);
10866module_exit(ipr_exit);
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