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cxlflash: Superpipe support
[deliverable/linux.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
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;
05a6538a 101static unsigned int ipr_number_of_msix = 2;
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[] = {
cb237ef7
WB		 189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 198};
199
203fa3fe 200static int ipr_max_bus_speeds[] = {
1da177e4
LT		 201 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
202};
203
204MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
205MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
206module_param_named(max_speed, ipr_max_speed, uint, 0);
207MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
208module_param_named(log_level, ipr_log_level, uint, 0);
209MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
210module_param_named(testmode, ipr_testmode, int, 0);
211MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 212module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 213MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
214module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
215MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 216module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 217MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 218module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
219MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 220module_param_named(max_devs, ipr_max_devs, int, 0);
221MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
222 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 223module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
6634ff7c 224MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
4fdd7c7a
BK		 225module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
226MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
1da177e4
LT		 227MODULE_LICENSE("GPL");
228MODULE_VERSION(IPR_DRIVER_VERSION);
229
1da177e4
LT		 230/* A constant array of IOASCs/URCs/Error Messages */
231static const
232struct ipr_error_table_t ipr_error_table[] = {
933916f3 233 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 234 "8155: An unknown error was received"},
235 {0x00330000, 0, 0,
236 "Soft underlength error"},
237 {0x005A0000, 0, 0,
238 "Command to be cancelled not found"},
239 {0x00808000, 0, 0,
240 "Qualified success"},
933916f3 241 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 242 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 243 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 244 "4101: Soft device bus fabric error"},
5aa3a333
WB		 245 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFC: Logical block guard error recovered by the device"},
247 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
248 "FFFC: Logical block reference tag error recovered by the device"},
249 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
250 "4171: Recovered scatter list tag / sequence number error"},
251 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
253 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
254 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
255 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
256 "FFFD: Recovered logical block reference tag error detected by the IOA"},
257 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 259 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 260 "FFF9: Device sector reassign successful"},
933916f3 261 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 262 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 263 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 264 "7001: IOA sector reassignment successful"},
933916f3 265 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 266 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 267 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 268 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 269 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 270 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 271 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 272 "FFF6: Device hardware error recovered by the IOA"},
933916f3 273 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 274 "FFF6: Device hardware error recovered by the device"},
933916f3 275 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 276 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 277 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 278 "FFFA: Undefined device response recovered by the IOA"},
933916f3 279 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 280 "FFF6: Device bus error, message or command phase"},
933916f3 281 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 282 "FFFE: Task Management Function failed"},
933916f3 283 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 284 "FFF6: Failure prediction threshold exceeded"},
933916f3 285 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 286 "8009: Impending cache battery pack failure"},
ed7bd661 287 {0x02040100, 0, 0,
288 "Logical Unit in process of becoming ready"},
289 {0x02040200, 0, 0,
290 "Initializing command required"},
1da177e4
LT		 291 {0x02040400, 0, 0,
292 "34FF: Disk device format in progress"},
ed7bd661 293 {0x02040C00, 0, 0,
294 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 295 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
296 "9070: IOA requested reset"},
1da177e4
LT		 297 {0x023F0000, 0, 0,
298 "Synchronization required"},
ed7bd661 299 {0x02408500, 0, 0,
300 "IOA microcode download required"},
301 {0x02408600, 0, 0,
302 "Device bus connection is prohibited by host"},
1da177e4
LT		 303 {0x024E0000, 0, 0,
304 "No ready, IOA shutdown"},
305 {0x025A0000, 0, 0,
306 "Not ready, IOA has been shutdown"},
933916f3 307 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 308 "3020: Storage subsystem configuration error"},
309 {0x03110B00, 0, 0,
310 "FFF5: Medium error, data unreadable, recommend reassign"},
311 {0x03110C00, 0, 0,
312 "7000: Medium error, data unreadable, do not reassign"},
933916f3 313 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 314 "FFF3: Disk media format bad"},
933916f3 315 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 316 "3002: Addressed device failed to respond to selection"},
933916f3 317 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 318 "3100: Device bus error"},
933916f3 319 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 320 "3109: IOA timed out a device command"},
321 {0x04088000, 0, 0,
322 "3120: SCSI bus is not operational"},
933916f3 323 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 324 "4100: Hard device bus fabric error"},
5aa3a333
WB		 325 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
326 "310C: Logical block guard error detected by the device"},
327 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
328 "310C: Logical block reference tag error detected by the device"},
329 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
330 "4170: Scatter list tag / sequence number error"},
331 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: Logical block CRC error on IOA to Host transfer"},
333 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
334 "4170: Logical block sequence number error on IOA to Host transfer"},
335 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "310D: Logical block reference tag error detected by the IOA"},
337 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "310D: Logical block guard error detected by the IOA"},
933916f3 339 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 340 "9000: IOA reserved area data check"},
933916f3 341 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 342 "9001: IOA reserved area invalid data pattern"},
933916f3 343 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 344 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 345 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
346 "Hardware Error, IOA metadata access error"},
933916f3 347 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 348 "102E: Out of alternate sectors for disk storage"},
933916f3 349 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 350 "FFF4: Data transfer underlength error"},
933916f3 351 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 352 "FFF4: Data transfer overlength error"},
933916f3 353 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 354 "3400: Logical unit failure"},
933916f3 355 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 356 "FFF4: Device microcode is corrupt"},
933916f3 357 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 358 "8150: PCI bus error"},
359 {0x04430000, 1, 0,
360 "Unsupported device bus message received"},
933916f3 361 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 362 "FFF4: Disk device problem"},
933916f3 363 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 364 "8150: Permanent IOA failure"},
933916f3 365 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 366 "3010: Disk device returned wrong response to IOA"},
933916f3 367 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 368 "8151: IOA microcode error"},
369 {0x04448500, 0, 0,
370 "Device bus status error"},
933916f3 371 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 372 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 373 {0x04448700, 0, 0,
374 "ATA device status error"},
1da177e4
LT		 375 {0x04490000, 0, 0,
376 "Message reject received from the device"},
933916f3 377 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 378 "8008: A permanent cache battery pack failure occurred"},
933916f3 379 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 380 "9090: Disk unit has been modified after the last known status"},
933916f3 381 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 382 "9081: IOA detected device error"},
933916f3 383 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 384 "9082: IOA detected device error"},
933916f3 385 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 386 "3110: Device bus error, message or command phase"},
933916f3 387 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 388 "3110: SAS Command / Task Management Function failed"},
933916f3 389 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 390 "9091: Incorrect hardware configuration change has been detected"},
933916f3 391 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 392 "9073: Invalid multi-adapter configuration"},
933916f3 393 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 394 "4010: Incorrect connection between cascaded expanders"},
933916f3 395 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 396 "4020: Connections exceed IOA design limits"},
933916f3 397 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 398 "4030: Incorrect multipath connection"},
933916f3 399 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 400 "4110: Unsupported enclosure function"},
ed7bd661 401 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
402 "4120: SAS cable VPD cannot be read"},
933916f3 403 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 404 "FFF4: Command to logical unit failed"},
405 {0x05240000, 1, 0,
406 "Illegal request, invalid request type or request packet"},
407 {0x05250000, 0, 0,
408 "Illegal request, invalid resource handle"},
b0df54bb 409 {0x05258000, 0, 0,
410 "Illegal request, commands not allowed to this device"},
411 {0x05258100, 0, 0,
412 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 413 {0x05258200, 0, 0,
414 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 415 {0x05260000, 0, 0,
416 "Illegal request, invalid field in parameter list"},
417 {0x05260100, 0, 0,
418 "Illegal request, parameter not supported"},
419 {0x05260200, 0, 0,
420 "Illegal request, parameter value invalid"},
421 {0x052C0000, 0, 0,
422 "Illegal request, command sequence error"},
b0df54bb 423 {0x052C8000, 1, 0,
424 "Illegal request, dual adapter support not enabled"},
ed7bd661 425 {0x052C8100, 1, 0,
426 "Illegal request, another cable connector was physically disabled"},
427 {0x054E8000, 1, 0,
428 "Illegal request, inconsistent group id/group count"},
933916f3 429 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 430 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 431 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 432 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 433 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4080: IOA exceeded maximum operating temperature"},
435 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4085: Service required"},
933916f3 437 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 438 "3140: Device bus not ready to ready transition"},
933916f3 439 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 440 "FFFB: SCSI bus was reset"},
441 {0x06290500, 0, 0,
442 "FFFE: SCSI bus transition to single ended"},
443 {0x06290600, 0, 0,
444 "FFFE: SCSI bus transition to LVD"},
933916f3 445 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 446 "FFFB: SCSI bus was reset by another initiator"},
933916f3 447 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 448 "3029: A device replacement has occurred"},
ed7bd661 449 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
450 "4102: Device bus fabric performance degradation"},
933916f3 451 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 452 "9051: IOA cache data exists for a missing or failed device"},
933916f3 453 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 454 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 455 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 456 "9025: Disk unit is not supported at its physical location"},
933916f3 457 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 458 "3020: IOA detected a SCSI bus configuration error"},
933916f3 459 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 460 "3150: SCSI bus configuration error"},
933916f3 461 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 462 "9074: Asymmetric advanced function disk configuration"},
933916f3 463 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 464 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 465 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 466 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 467 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 468 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 469 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 470 "9076: Configuration error, missing remote IOA"},
933916f3 471 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 472 "4050: Enclosure does not support a required multipath function"},
ed7bd661 473 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
474 "4121: Configuration error, required cable is missing"},
475 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
476 "4122: Cable is not plugged into the correct location on remote IOA"},
477 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "4123: Configuration error, invalid cable vital product data"},
479 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 481 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
482 "4070: Logically bad block written on device"},
933916f3 483 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 484 "9041: Array protection temporarily suspended"},
933916f3 485 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 486 "9042: Corrupt array parity detected on specified device"},
933916f3 487 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 488 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 489 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 490 "9071: Link operational transition"},
933916f3 491 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 492 "9072: Link not operational transition"},
933916f3 493 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 494 "9032: Array exposed but still protected"},
e435340c
BK		 495 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
496 "70DD: Device forced failed by disrupt device command"},
933916f3 497 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 498 "4061: Multipath redundancy level got better"},
933916f3 499 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 500 "4060: Multipath redundancy level got worse"},
f8ee25d7
WX		 501 {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL,
502 "9083: Device raw mode enabled"},
503 {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL,
504 "9084: Device raw mode disabled"},
1da177e4
LT		 505 {0x07270000, 0, 0,
506 "Failure due to other device"},
933916f3 507 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 508 "9008: IOA does not support functions expected by devices"},
933916f3 509 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 510 "9010: Cache data associated with attached devices cannot be found"},
933916f3 511 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 512 "9011: Cache data belongs to devices other than those attached"},
933916f3 513 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 514 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 515 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 516 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 517 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 518 "9022: Exposed array is missing a required device"},
933916f3 519 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 520 "9023: Array member(s) not at required physical locations"},
933916f3 521 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 522 "9024: Array not functional due to present hardware configuration"},
933916f3 523 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 524 "9026: Array not functional due to present hardware configuration"},
933916f3 525 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 526 "9027: Array is missing a device and parity is out of sync"},
933916f3 527 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 528 "9028: Maximum number of arrays already exist"},
933916f3 529 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 530 "9050: Required cache data cannot be located for a disk unit"},
933916f3 531 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 532 "9052: Cache data exists for a device that has been modified"},
933916f3 533 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 534 "9054: IOA resources not available due to previous problems"},
933916f3 535 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 536 "9092: Disk unit requires initialization before use"},
933916f3 537 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 538 "9029: Incorrect hardware configuration change has been detected"},
933916f3 539 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 540 "9060: One or more disk pairs are missing from an array"},
933916f3 541 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 542 "9061: One or more disks are missing from an array"},
933916f3 543 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 544 "9062: One or more disks are missing from an array"},
933916f3 545 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 546 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 547 {0x07279A00, 0, 0,
548 "Data protect, other volume set problem"},
1da177e4
LT		 549 {0x0B260000, 0, 0,
550 "Aborted command, invalid descriptor"},
ed7bd661 551 {0x0B3F9000, 0, 0,
552 "Target operating conditions have changed, dual adapter takeover"},
553 {0x0B530200, 0, 0,
554 "Aborted command, medium removal prevented"},
1da177e4 555 {0x0B5A0000, 0, 0,
ed7bd661 556 "Command terminated by host"},
557 {0x0B5B8000, 0, 0,
558 "Aborted command, command terminated by host"}
1da177e4
LT		 559};
560
561static const struct ipr_ses_table_entry ipr_ses_table[] = {
562 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
563 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
565 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
566 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
567 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
568 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
569 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
571 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
573 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
574 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
575};
576
577/*
578 * Function Prototypes
579 */
580static int ipr_reset_alert(struct ipr_cmnd *);
581static void ipr_process_ccn(struct ipr_cmnd *);
582static void ipr_process_error(struct ipr_cmnd *);
583static void ipr_reset_ioa_job(struct ipr_cmnd *);
584static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
585 enum ipr_shutdown_type);
586
587#ifdef CONFIG_SCSI_IPR_TRACE
588/**
589 * ipr_trc_hook - Add a trace entry to the driver trace
590 * @ipr_cmd: ipr command struct
591 * @type: trace type
592 * @add_data: additional data
593 *
594 * Return value:
595 * none
596 **/
597static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
598 u8 type, u32 add_data)
599{
600 struct ipr_trace_entry *trace_entry;
601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
bb7c5433 602 unsigned int trace_index;
1da177e4 603
bb7c5433
BK		 604 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
605 trace_entry = &ioa_cfg->trace[trace_index];
1da177e4
LT		 606 trace_entry->time = jiffies;
607 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
608 trace_entry->type = type;
a32c055f
WB		 609 if (ipr_cmd->ioa_cfg->sis64)
610 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
611 else
612 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 613 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 614 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
615 trace_entry->u.add_data = add_data;
56d6aa33 616 wmb();
1da177e4
LT		 617}
618#else
203fa3fe 619#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 620#endif
621
172cd6e1
BK		 622/**
623 * ipr_lock_and_done - Acquire lock and complete command
624 * @ipr_cmd: ipr command struct
625 *
626 * Return value:
627 * none
628 **/
629static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
630{
631 unsigned long lock_flags;
632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
633
634 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
635 ipr_cmd->done(ipr_cmd);
636 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
637}
638
1da177e4
LT		 639/**
640 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
641 * @ipr_cmd: ipr command struct
642 *
643 * Return value:
644 * none
645 **/
646static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
647{
648 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 649 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
650 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 651 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 652 int hrrq_id;
1da177e4 653
05a6538a 654 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 655 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 656 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 657 ioarcb->data_transfer_length = 0;
1da177e4 658 ioarcb->read_data_transfer_length = 0;
a32c055f 659 ioarcb->ioadl_len = 0;
1da177e4 660 ioarcb->read_ioadl_len = 0;
a32c055f 661
96d21f00 662 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 663 ioarcb->u.sis64_addr_data.data_ioadl_addr =
664 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 665 ioasa64->u.gata.status = 0;
666 } else {
a32c055f
WB		 667 ioarcb->write_ioadl_addr =
668 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
669 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 670 ioasa->u.gata.status = 0;
a32c055f
WB		 671 }
672
96d21f00
WB		 673 ioasa->hdr.ioasc = 0;
674 ioasa->hdr.residual_data_len = 0;
1da177e4 675 ipr_cmd->scsi_cmd = NULL;
35a39691 676 ipr_cmd->qc = NULL;
1da177e4
LT		 677 ipr_cmd->sense_buffer[0] = 0;
678 ipr_cmd->dma_use_sg = 0;
679}
680
681/**
682 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
683 * @ipr_cmd: ipr command struct
684 *
685 * Return value:
686 * none
687 **/
172cd6e1
BK		 688static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
689 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 690{
691 ipr_reinit_ipr_cmnd(ipr_cmd);
692 ipr_cmd->u.scratch = 0;
693 ipr_cmd->sibling = NULL;
6cdb0817 694 ipr_cmd->eh_comp = NULL;
172cd6e1 695 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 696 init_timer(&ipr_cmd->timer);
697}
698
699/**
00bfef2c 700 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 701 * @ioa_cfg: ioa config struct
702 *
703 * Return value:
704 * pointer to ipr command struct
705 **/
706static
05a6538a 707struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 708{
05a6538a 709 struct ipr_cmnd *ipr_cmd = NULL;
710
711 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
712 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
713 struct ipr_cmnd, queue);
714 list_del(&ipr_cmd->queue);
715 }
1da177e4 716
1da177e4
LT		 717
718 return ipr_cmd;
719}
720
00bfef2c
BK		 721/**
722 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
723 * @ioa_cfg: ioa config struct
724 *
725 * Return value:
726 * pointer to ipr command struct
727 **/
728static
729struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
730{
05a6538a 731 struct ipr_cmnd *ipr_cmd =
732 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 733 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 734 return ipr_cmd;
735}
736
1da177e4
LT		 737/**
738 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
739 * @ioa_cfg: ioa config struct
740 * @clr_ints: interrupts to clear
741 *
742 * This function masks all interrupts on the adapter, then clears the
743 * interrupts specified in the mask
744 *
745 * Return value:
746 * none
747 **/
748static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
749 u32 clr_ints)
750{
751 volatile u32 int_reg;
56d6aa33 752 int i;
1da177e4
LT		 753
754 /* Stop new interrupts */
56d6aa33 755 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
756 spin_lock(&ioa_cfg->hrrq[i]._lock);
757 ioa_cfg->hrrq[i].allow_interrupts = 0;
758 spin_unlock(&ioa_cfg->hrrq[i]._lock);
759 }
760 wmb();
1da177e4
LT		 761
762 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 763 if (ioa_cfg->sis64)
764 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
765 else
766 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 767
768 /* Clear any pending interrupts */
214777ba
WB		 769 if (ioa_cfg->sis64)
770 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
771 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 772 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
773}
774
775/**
776 * ipr_save_pcix_cmd_reg - Save PCI-X command register
777 * @ioa_cfg: ioa config struct
778 *
779 * Return value:
780 * 0 on success / -EIO on failure
781 **/
782static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
783{
784 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
785
7dce0e1c
BK		 786 if (pcix_cmd_reg == 0)
787 return 0;
1da177e4
LT		 788
789 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
790 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
791 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
792 return -EIO;
793 }
794
795 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
796 return 0;
797}
798
799/**
800 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
801 * @ioa_cfg: ioa config struct
802 *
803 * Return value:
804 * 0 on success / -EIO on failure
805 **/
806static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
807{
808 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
809
810 if (pcix_cmd_reg) {
811 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
812 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
813 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
814 return -EIO;
815 }
1da177e4
LT		 816 }
817
818 return 0;
819}
820
35a39691
BK		 821/**
822 * ipr_sata_eh_done - done function for aborted SATA commands
823 * @ipr_cmd: ipr command struct
824 *
825 * This function is invoked for ops generated to SATA
826 * devices which are being aborted.
827 *
828 * Return value:
829 * none
830 **/
831static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
832{
35a39691
BK		 833 struct ata_queued_cmd *qc = ipr_cmd->qc;
834 struct ipr_sata_port *sata_port = qc->ap->private_data;
835
836 qc->err_mask |= AC_ERR_OTHER;
837 sata_port->ioasa.status |= ATA_BUSY;
05a6538a 838 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 839 ata_qc_complete(qc);
840}
841
1da177e4
LT		 842/**
843 * ipr_scsi_eh_done - mid-layer done function for aborted ops
844 * @ipr_cmd: ipr command struct
845 *
846 * This function is invoked by the interrupt handler for
847 * ops generated by the SCSI mid-layer which are being aborted.
848 *
849 * Return value:
850 * none
851 **/
852static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
853{
1da177e4
LT		 854 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
855
856 scsi_cmd->result |= (DID_ERROR << 16);
857
63015bc9 858 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 859 scsi_cmd->scsi_done(scsi_cmd);
6cdb0817
BK		 860 if (ipr_cmd->eh_comp)
861 complete(ipr_cmd->eh_comp);
05a6538a 862 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 863}
864
865/**
866 * ipr_fail_all_ops - Fails all outstanding ops.
867 * @ioa_cfg: ioa config struct
868 *
869 * This function fails all outstanding ops.
870 *
871 * Return value:
872 * none
873 **/
874static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
875{
876 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 877 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 878
879 ENTER;
05a6538a 880 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 881 spin_lock(&hrrq->_lock);
05a6538a 882 list_for_each_entry_safe(ipr_cmd,
883 temp, &hrrq->hrrq_pending_q, queue) {
884 list_del(&ipr_cmd->queue);
1da177e4 885
05a6538a 886 ipr_cmd->s.ioasa.hdr.ioasc =
887 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
888 ipr_cmd->s.ioasa.hdr.ilid =
889 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 890
05a6538a 891 if (ipr_cmd->scsi_cmd)
892 ipr_cmd->done = ipr_scsi_eh_done;
893 else if (ipr_cmd->qc)
894 ipr_cmd->done = ipr_sata_eh_done;
1da177e4 895
05a6538a 896 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
897 IPR_IOASC_IOA_WAS_RESET);
898 del_timer(&ipr_cmd->timer);
899 ipr_cmd->done(ipr_cmd);
900 }
56d6aa33 901 spin_unlock(&hrrq->_lock);
1da177e4 902 }
1da177e4
LT		 903 LEAVE;
904}
905
a32c055f
WB		 906/**
907 * ipr_send_command - Send driver initiated requests.
908 * @ipr_cmd: ipr command struct
909 *
910 * This function sends a command to the adapter using the correct write call.
911 * In the case of sis64, calculate the ioarcb size required. Then or in the
912 * appropriate bits.
913 *
914 * Return value:
915 * none
916 **/
917static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
918{
919 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
920 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
921
922 if (ioa_cfg->sis64) {
923 /* The default size is 256 bytes */
924 send_dma_addr |= 0x1;
925
926 /* If the number of ioadls * size of ioadl > 128 bytes,
927 then use a 512 byte ioarcb */
928 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
929 send_dma_addr |= 0x4;
930 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
931 } else
932 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
933}
934
1da177e4
LT		 935/**
936 * ipr_do_req - Send driver initiated requests.
937 * @ipr_cmd: ipr command struct
938 * @done: done function
939 * @timeout_func: timeout function
940 * @timeout: timeout value
941 *
942 * This function sends the specified command to the adapter with the
943 * timeout given. The done function is invoked on command completion.
944 *
945 * Return value:
946 * none
947 **/
948static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
949 void (*done) (struct ipr_cmnd *),
950 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
951{
05a6538a 952 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 953
954 ipr_cmd->done = done;
955
956 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
957 ipr_cmd->timer.expires = jiffies + timeout;
958 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
959
960 add_timer(&ipr_cmd->timer);
961
962 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
963
a32c055f 964 ipr_send_command(ipr_cmd);
1da177e4
LT		 965}
966
967/**
968 * ipr_internal_cmd_done - Op done function for an internally generated op.
969 * @ipr_cmd: ipr command struct
970 *
971 * This function is the op done function for an internally generated,
972 * blocking op. It simply wakes the sleeping thread.
973 *
974 * Return value:
975 * none
976 **/
977static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
978{
979 if (ipr_cmd->sibling)
980 ipr_cmd->sibling = NULL;
981 else
982 complete(&ipr_cmd->completion);
983}
984
a32c055f
WB		 985/**
986 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
987 * @ipr_cmd: ipr command struct
988 * @dma_addr: dma address
989 * @len: transfer length
990 * @flags: ioadl flag value
991 *
992 * This function initializes an ioadl in the case where there is only a single
993 * descriptor.
994 *
995 * Return value:
996 * nothing
997 **/
998static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
999 u32 len, int flags)
1000{
1001 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1002 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1003
1004 ipr_cmd->dma_use_sg = 1;
1005
1006 if (ipr_cmd->ioa_cfg->sis64) {
1007 ioadl64->flags = cpu_to_be32(flags);
1008 ioadl64->data_len = cpu_to_be32(len);
1009 ioadl64->address = cpu_to_be64(dma_addr);
1010
1011 ipr_cmd->ioarcb.ioadl_len =
1012 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1013 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1014 } else {
1015 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1016 ioadl->address = cpu_to_be32(dma_addr);
1017
1018 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1019 ipr_cmd->ioarcb.read_ioadl_len =
1020 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1021 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1022 } else {
1023 ipr_cmd->ioarcb.ioadl_len =
1024 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1025 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1026 }
1027 }
1028}
1029
1da177e4
LT		 1030/**
1031 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1032 * @ipr_cmd: ipr command struct
1033 * @timeout_func: function to invoke if command times out
1034 * @timeout: timeout
1035 *
1036 * Return value:
1037 * none
1038 **/
1039static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1040 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1041 u32 timeout)
1042{
1043 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1044
1045 init_completion(&ipr_cmd->completion);
1046 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1047
1048 spin_unlock_irq(ioa_cfg->host->host_lock);
1049 wait_for_completion(&ipr_cmd->completion);
1050 spin_lock_irq(ioa_cfg->host->host_lock);
1051}
1052
05a6538a 1053static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1054{
3f1c0581
BK		 1055 unsigned int hrrq;
1056
05a6538a 1057 if (ioa_cfg->hrrq_num == 1)
3f1c0581
BK		 1058 hrrq = 0;
1059 else {
1060 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1061 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1062 }
1063 return hrrq;
05a6538a 1064}
1065
1da177e4
LT		 1066/**
1067 * ipr_send_hcam - Send an HCAM to the adapter.
1068 * @ioa_cfg: ioa config struct
1069 * @type: HCAM type
1070 * @hostrcb: hostrcb struct
1071 *
1072 * This function will send a Host Controlled Async command to the adapter.
1073 * If HCAMs are currently not allowed to be issued to the adapter, it will
1074 * place the hostrcb on the free queue.
1075 *
1076 * Return value:
1077 * none
1078 **/
1079static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1080 struct ipr_hostrcb *hostrcb)
1081{
1082 struct ipr_cmnd *ipr_cmd;
1083 struct ipr_ioarcb *ioarcb;
1084
56d6aa33 1085 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1086 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1087 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1088 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1089
1090 ipr_cmd->u.hostrcb = hostrcb;
1091 ioarcb = &ipr_cmd->ioarcb;
1092
1093 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1094 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1095 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1096 ioarcb->cmd_pkt.cdb[1] = type;
1097 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1098 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1099
a32c055f
WB		 1100 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1101 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1102
1103 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1104 ipr_cmd->done = ipr_process_ccn;
1105 else
1106 ipr_cmd->done = ipr_process_error;
1107
1108 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1109
a32c055f 1110 ipr_send_command(ipr_cmd);
1da177e4
LT		 1111 } else {
1112 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1113 }
1114}
1115
3e7ebdfa
WB		 1116/**
1117 * ipr_update_ata_class - Update the ata class in the resource entry
1118 * @res: resource entry struct
1119 * @proto: cfgte device bus protocol value
1120 *
1121 * Return value:
1122 * none
1123 **/
1124static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1125{
203fa3fe 1126 switch (proto) {
3e7ebdfa
WB		 1127 case IPR_PROTO_SATA:
1128 case IPR_PROTO_SAS_STP:
1129 res->ata_class = ATA_DEV_ATA;
1130 break;
1131 case IPR_PROTO_SATA_ATAPI:
1132 case IPR_PROTO_SAS_STP_ATAPI:
1133 res->ata_class = ATA_DEV_ATAPI;
1134 break;
1135 default:
1136 res->ata_class = ATA_DEV_UNKNOWN;
1137 break;
1138 };
1139}
1140
1da177e4
LT		 1141/**
1142 * ipr_init_res_entry - Initialize a resource entry struct.
1143 * @res: resource entry struct
3e7ebdfa 1144 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1145 *
1146 * Return value:
1147 * none
1148 **/
3e7ebdfa
WB		 1149static void ipr_init_res_entry(struct ipr_resource_entry *res,
1150 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1151{
3e7ebdfa
WB		 1152 int found = 0;
1153 unsigned int proto;
1154 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1155 struct ipr_resource_entry *gscsi_res = NULL;
1156
ee0a90fa 1157 res->needs_sync_complete = 0;
1da177e4
LT		 1158 res->in_erp = 0;
1159 res->add_to_ml = 0;
1160 res->del_from_ml = 0;
1161 res->resetting_device = 0;
0b1f8d44 1162 res->reset_occurred = 0;
1da177e4 1163 res->sdev = NULL;
35a39691 1164 res->sata_port = NULL;
3e7ebdfa
WB		 1165
1166 if (ioa_cfg->sis64) {
1167 proto = cfgtew->u.cfgte64->proto;
359d96e7
BK		 1168 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1169 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
3e7ebdfa 1170 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1171 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1172
1173 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1174 sizeof(res->res_path));
1175
1176 res->bus = 0;
0cb992ed
WB		 1177 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1178 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1179 res->lun = scsilun_to_int(&res->dev_lun);
1180
1181 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1182 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1183 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1184 found = 1;
1185 res->target = gscsi_res->target;
1186 break;
1187 }
1188 }
1189 if (!found) {
1190 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1191 ioa_cfg->max_devs_supported);
1192 set_bit(res->target, ioa_cfg->target_ids);
1193 }
3e7ebdfa
WB		 1194 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1195 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1196 res->target = 0;
1197 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1198 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1199 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1200 ioa_cfg->max_devs_supported);
1201 set_bit(res->target, ioa_cfg->array_ids);
1202 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1203 res->bus = IPR_VSET_VIRTUAL_BUS;
1204 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1205 ioa_cfg->max_devs_supported);
1206 set_bit(res->target, ioa_cfg->vset_ids);
1207 } else {
1208 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1209 ioa_cfg->max_devs_supported);
1210 set_bit(res->target, ioa_cfg->target_ids);
1211 }
1212 } else {
1213 proto = cfgtew->u.cfgte->proto;
1214 res->qmodel = IPR_QUEUEING_MODEL(res);
1215 res->flags = cfgtew->u.cfgte->flags;
1216 if (res->flags & IPR_IS_IOA_RESOURCE)
1217 res->type = IPR_RES_TYPE_IOAFP;
1218 else
1219 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1220
1221 res->bus = cfgtew->u.cfgte->res_addr.bus;
1222 res->target = cfgtew->u.cfgte->res_addr.target;
1223 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1224 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1225 }
1226
1227 ipr_update_ata_class(res, proto);
1228}
1229
1230/**
1231 * ipr_is_same_device - Determine if two devices are the same.
1232 * @res: resource entry struct
1233 * @cfgtew: config table entry wrapper struct
1234 *
1235 * Return value:
1236 * 1 if the devices are the same / 0 otherwise
1237 **/
1238static int ipr_is_same_device(struct ipr_resource_entry *res,
1239 struct ipr_config_table_entry_wrapper *cfgtew)
1240{
1241 if (res->ioa_cfg->sis64) {
1242 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1243 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1244 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1245 sizeof(cfgtew->u.cfgte64->lun))) {
1246 return 1;
1247 }
1248 } else {
1249 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1250 res->target == cfgtew->u.cfgte->res_addr.target &&
1251 res->lun == cfgtew->u.cfgte->res_addr.lun)
1252 return 1;
1253 }
1254
1255 return 0;
1256}
1257
1258/**
b3b3b407 1259 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1260 * @res_path: resource path
1261 * @buf: buffer
b3b3b407 1262 * @len: length of buffer provided
3e7ebdfa
WB		 1263 *
1264 * Return value:
1265 * pointer to buffer
1266 **/
b3b3b407 1267static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1268{
1269 int i;
5adcbeb3 1270 char *p = buffer;
3e7ebdfa 1271
46d74563 1272 *p = '\0';
5adcbeb3
WB		 1273 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1274 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1275 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1276
1277 return buffer;
1278}
1279
b3b3b407
BK		 1280/**
1281 * ipr_format_res_path - Format the resource path for printing.
1282 * @ioa_cfg: ioa config struct
1283 * @res_path: resource path
1284 * @buf: buffer
1285 * @len: length of buffer provided
1286 *
1287 * Return value:
1288 * pointer to buffer
1289 **/
1290static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1291 u8 *res_path, char *buffer, int len)
1292{
1293 char *p = buffer;
1294
1295 *p = '\0';
1296 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1297 __ipr_format_res_path(res_path, p, len - (buffer - p));
1298 return buffer;
1299}
1300
3e7ebdfa
WB		 1301/**
1302 * ipr_update_res_entry - Update the resource entry.
1303 * @res: resource entry struct
1304 * @cfgtew: config table entry wrapper struct
1305 *
1306 * Return value:
1307 * none
1308 **/
1309static void ipr_update_res_entry(struct ipr_resource_entry *res,
1310 struct ipr_config_table_entry_wrapper *cfgtew)
1311{
1312 char buffer[IPR_MAX_RES_PATH_LENGTH];
1313 unsigned int proto;
1314 int new_path = 0;
1315
1316 if (res->ioa_cfg->sis64) {
359d96e7
BK		 1317 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1318 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
75576bb9 1319 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1320
1321 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1322 sizeof(struct ipr_std_inq_data));
1323
1324 res->qmodel = IPR_QUEUEING_MODEL64(res);
1325 proto = cfgtew->u.cfgte64->proto;
1326 res->res_handle = cfgtew->u.cfgte64->res_handle;
1327 res->dev_id = cfgtew->u.cfgte64->dev_id;
1328
1329 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1330 sizeof(res->dev_lun.scsi_lun));
1331
1332 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1333 sizeof(res->res_path))) {
1334 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1335 sizeof(res->res_path));
1336 new_path = 1;
1337 }
1338
1339 if (res->sdev && new_path)
1340 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1341 ipr_format_res_path(res->ioa_cfg,
1342 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1343 } else {
1344 res->flags = cfgtew->u.cfgte->flags;
1345 if (res->flags & IPR_IS_IOA_RESOURCE)
1346 res->type = IPR_RES_TYPE_IOAFP;
1347 else
1348 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1349
1350 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1351 sizeof(struct ipr_std_inq_data));
1352
1353 res->qmodel = IPR_QUEUEING_MODEL(res);
1354 proto = cfgtew->u.cfgte->proto;
1355 res->res_handle = cfgtew->u.cfgte->res_handle;
1356 }
1357
1358 ipr_update_ata_class(res, proto);
1359}
1360
1361/**
1362 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1363 * for the resource.
1364 * @res: resource entry struct
1365 * @cfgtew: config table entry wrapper struct
1366 *
1367 * Return value:
1368 * none
1369 **/
1370static void ipr_clear_res_target(struct ipr_resource_entry *res)
1371{
1372 struct ipr_resource_entry *gscsi_res = NULL;
1373 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1374
1375 if (!ioa_cfg->sis64)
1376 return;
1377
1378 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1379 clear_bit(res->target, ioa_cfg->array_ids);
1380 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1381 clear_bit(res->target, ioa_cfg->vset_ids);
1382 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1383 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1384 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1385 return;
1386 clear_bit(res->target, ioa_cfg->target_ids);
1387
1388 } else if (res->bus == 0)
1389 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1390}
1391
1392/**
1393 * ipr_handle_config_change - Handle a config change from the adapter
1394 * @ioa_cfg: ioa config struct
1395 * @hostrcb: hostrcb
1396 *
1397 * Return value:
1398 * none
1399 **/
1400static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1401 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1402{
1403 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1404 struct ipr_config_table_entry_wrapper cfgtew;
1405 __be32 cc_res_handle;
1406
1da177e4
LT		 1407 u32 is_ndn = 1;
1408
3e7ebdfa
WB		 1409 if (ioa_cfg->sis64) {
1410 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1411 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1412 } else {
1413 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1414 cc_res_handle = cfgtew.u.cfgte->res_handle;
1415 }
1da177e4
LT		 1416
1417 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1418 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1419 is_ndn = 0;
1420 break;
1421 }
1422 }
1423
1424 if (is_ndn) {
1425 if (list_empty(&ioa_cfg->free_res_q)) {
1426 ipr_send_hcam(ioa_cfg,
1427 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1428 hostrcb);
1429 return;
1430 }
1431
1432 res = list_entry(ioa_cfg->free_res_q.next,
1433 struct ipr_resource_entry, queue);
1434
1435 list_del(&res->queue);
3e7ebdfa 1436 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1437 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1438 }
1439
3e7ebdfa 1440 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1441
1442 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1443 if (res->sdev) {
1da177e4 1444 res->del_from_ml = 1;
3e7ebdfa 1445 res->res_handle = IPR_INVALID_RES_HANDLE;
f688f96d 1446 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1447 } else {
1448 ipr_clear_res_target(res);
1da177e4 1449 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1450 }
5767a1c4 1451 } else if (!res->sdev || res->del_from_ml) {
1da177e4 1452 res->add_to_ml = 1;
f688f96d 1453 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 1454 }
1455
1456 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1457}
1458
1459/**
1460 * ipr_process_ccn - Op done function for a CCN.
1461 * @ipr_cmd: ipr command struct
1462 *
1463 * This function is the op done function for a configuration
1464 * change notification host controlled async from the adapter.
1465 *
1466 * Return value:
1467 * none
1468 **/
1469static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1470{
1471 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1472 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1473 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1474
1475 list_del(&hostrcb->queue);
05a6538a 1476 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1477
1478 if (ioasc) {
4fdd7c7a
BK		 1479 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1480 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1da177e4
LT		 1481 dev_err(&ioa_cfg->pdev->dev,
1482 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1483
1484 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1485 } else {
1486 ipr_handle_config_change(ioa_cfg, hostrcb);
1487 }
1488}
1489
8cf093e2
BK		 1490/**
1491 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1492 * @i: index into buffer
1493 * @buf: string to modify
1494 *
1495 * This function will strip all trailing whitespace, pad the end
1496 * of the string with a single space, and NULL terminate the string.
1497 *
1498 * Return value:
1499 * new length of string
1500 **/
1501static int strip_and_pad_whitespace(int i, char *buf)
1502{
1503 while (i && buf[i] == ' ')
1504 i--;
1505 buf[i+1] = ' ';
1506 buf[i+2] = '\0';
1507 return i + 2;
1508}
1509
1510/**
1511 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1512 * @prefix: string to print at start of printk
1513 * @hostrcb: hostrcb pointer
1514 * @vpd: vendor/product id/sn struct
1515 *
1516 * Return value:
1517 * none
1518 **/
1519static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1520 struct ipr_vpd *vpd)
1521{
1522 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1523 int i = 0;
1524
1525 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1526 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1527
1528 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1529 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1530
1531 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1532 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1533
1534 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1535}
1536
1da177e4
LT		 1537/**
1538 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1539 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1540 *
1541 * Return value:
1542 * none
1543 **/
cfc32139 1544static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1545{
1546 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1547 + IPR_SERIAL_NUM_LEN];
1548
cfc32139 1549 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1550 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1551 IPR_PROD_ID_LEN);
1552 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1553 ipr_err("Vendor/Product ID: %s\n", buffer);
1554
cfc32139 1555 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1556 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1557 ipr_err(" Serial Number: %s\n", buffer);
1558}
1559
8cf093e2
BK		 1560/**
1561 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1562 * @prefix: string to print at start of printk
1563 * @hostrcb: hostrcb pointer
1564 * @vpd: vendor/product id/sn/wwn struct
1565 *
1566 * Return value:
1567 * none
1568 **/
1569static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1570 struct ipr_ext_vpd *vpd)
1571{
1572 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1573 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1574 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1575}
1576
ee0f05b8 1577/**
1578 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1579 * @vpd: vendor/product id/sn/wwn struct
1580 *
1581 * Return value:
1582 * none
1583 **/
1584static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1585{
1586 ipr_log_vpd(&vpd->vpd);
1587 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1588 be32_to_cpu(vpd->wwid[1]));
1589}
1590
1591/**
1592 * ipr_log_enhanced_cache_error - Log a cache error.
1593 * @ioa_cfg: ioa config struct
1594 * @hostrcb: hostrcb struct
1595 *
1596 * Return value:
1597 * none
1598 **/
1599static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1600 struct ipr_hostrcb *hostrcb)
1601{
4565e370
WB		 1602 struct ipr_hostrcb_type_12_error *error;
1603
1604 if (ioa_cfg->sis64)
1605 error = &hostrcb->hcam.u.error64.u.type_12_error;
1606 else
1607 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8 1608
1609 ipr_err("-----Current Configuration-----\n");
1610 ipr_err("Cache Directory Card Information:\n");
1611 ipr_log_ext_vpd(&error->ioa_vpd);
1612 ipr_err("Adapter Card Information:\n");
1613 ipr_log_ext_vpd(&error->cfc_vpd);
1614
1615 ipr_err("-----Expected Configuration-----\n");
1616 ipr_err("Cache Directory Card Information:\n");
1617 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1618 ipr_err("Adapter Card Information:\n");
1619 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1620
1621 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1622 be32_to_cpu(error->ioa_data[0]),
1623 be32_to_cpu(error->ioa_data[1]),
1624 be32_to_cpu(error->ioa_data[2]));
1625}
1626
1da177e4
LT		 1627/**
1628 * ipr_log_cache_error - Log a cache error.
1629 * @ioa_cfg: ioa config struct
1630 * @hostrcb: hostrcb struct
1631 *
1632 * Return value:
1633 * none
1634 **/
1635static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1636 struct ipr_hostrcb *hostrcb)
1637{
1638 struct ipr_hostrcb_type_02_error *error =
1639 &hostrcb->hcam.u.error.u.type_02_error;
1640
1641 ipr_err("-----Current Configuration-----\n");
1642 ipr_err("Cache Directory Card Information:\n");
cfc32139 1643 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1644 ipr_err("Adapter Card Information:\n");
cfc32139 1645 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1646
1647 ipr_err("-----Expected Configuration-----\n");
1648 ipr_err("Cache Directory Card Information:\n");
cfc32139 1649 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1650 ipr_err("Adapter Card Information:\n");
cfc32139 1651 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1652
1653 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1654 be32_to_cpu(error->ioa_data[0]),
1655 be32_to_cpu(error->ioa_data[1]),
1656 be32_to_cpu(error->ioa_data[2]));
1657}
1658
ee0f05b8 1659/**
1660 * ipr_log_enhanced_config_error - Log a configuration error.
1661 * @ioa_cfg: ioa config struct
1662 * @hostrcb: hostrcb struct
1663 *
1664 * Return value:
1665 * none
1666 **/
1667static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1668 struct ipr_hostrcb *hostrcb)
1669{
1670 int errors_logged, i;
1671 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1672 struct ipr_hostrcb_type_13_error *error;
1673
1674 error = &hostrcb->hcam.u.error.u.type_13_error;
1675 errors_logged = be32_to_cpu(error->errors_logged);
1676
1677 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1678 be32_to_cpu(error->errors_detected), errors_logged);
1679
1680 dev_entry = error->dev;
1681
1682 for (i = 0; i < errors_logged; i++, dev_entry++) {
1683 ipr_err_separator;
1684
1685 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1686 ipr_log_ext_vpd(&dev_entry->vpd);
1687
1688 ipr_err("-----New Device Information-----\n");
1689 ipr_log_ext_vpd(&dev_entry->new_vpd);
1690
1691 ipr_err("Cache Directory Card Information:\n");
1692 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1693
1694 ipr_err("Adapter Card Information:\n");
1695 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1696 }
1697}
1698
4565e370
WB		 1699/**
1700 * ipr_log_sis64_config_error - Log a device error.
1701 * @ioa_cfg: ioa config struct
1702 * @hostrcb: hostrcb struct
1703 *
1704 * Return value:
1705 * none
1706 **/
1707static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1708 struct ipr_hostrcb *hostrcb)
1709{
1710 int errors_logged, i;
1711 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1712 struct ipr_hostrcb_type_23_error *error;
1713 char buffer[IPR_MAX_RES_PATH_LENGTH];
1714
1715 error = &hostrcb->hcam.u.error64.u.type_23_error;
1716 errors_logged = be32_to_cpu(error->errors_logged);
1717
1718 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1719 be32_to_cpu(error->errors_detected), errors_logged);
1720
1721 dev_entry = error->dev;
1722
1723 for (i = 0; i < errors_logged; i++, dev_entry++) {
1724 ipr_err_separator;
1725
1726 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1727 __ipr_format_res_path(dev_entry->res_path,
1728 buffer, sizeof(buffer)));
4565e370
WB		 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
1da177e4
LT		 1742/**
1743 * ipr_log_config_error - Log a configuration error.
1744 * @ioa_cfg: ioa config struct
1745 * @hostrcb: hostrcb struct
1746 *
1747 * Return value:
1748 * none
1749 **/
1750static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1751 struct ipr_hostrcb *hostrcb)
1752{
1753 int errors_logged, i;
1754 struct ipr_hostrcb_device_data_entry *dev_entry;
1755 struct ipr_hostrcb_type_03_error *error;
1756
1757 error = &hostrcb->hcam.u.error.u.type_03_error;
1758 errors_logged = be32_to_cpu(error->errors_logged);
1759
1760 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1761 be32_to_cpu(error->errors_detected), errors_logged);
1762
cfc32139 1763 dev_entry = error->dev;
1da177e4
LT		 1764
1765 for (i = 0; i < errors_logged; i++, dev_entry++) {
1766 ipr_err_separator;
1767
fa15b1f6 1768 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1769 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1770
1771 ipr_err("-----New Device Information-----\n");
cfc32139 1772 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1773
1774 ipr_err("Cache Directory Card Information:\n");
cfc32139 1775 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1776
1777 ipr_err("Adapter Card Information:\n");
cfc32139 1778 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1779
1780 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1781 be32_to_cpu(dev_entry->ioa_data[0]),
1782 be32_to_cpu(dev_entry->ioa_data[1]),
1783 be32_to_cpu(dev_entry->ioa_data[2]),
1784 be32_to_cpu(dev_entry->ioa_data[3]),
1785 be32_to_cpu(dev_entry->ioa_data[4]));
1786 }
1787}
1788
ee0f05b8 1789/**
1790 * ipr_log_enhanced_array_error - Log an array configuration error.
1791 * @ioa_cfg: ioa config struct
1792 * @hostrcb: hostrcb struct
1793 *
1794 * Return value:
1795 * none
1796 **/
1797static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1798 struct ipr_hostrcb *hostrcb)
1799{
1800 int i, num_entries;
1801 struct ipr_hostrcb_type_14_error *error;
1802 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1803 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1804
1805 error = &hostrcb->hcam.u.error.u.type_14_error;
1806
1807 ipr_err_separator;
1808
1809 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1810 error->protection_level,
1811 ioa_cfg->host->host_no,
1812 error->last_func_vset_res_addr.bus,
1813 error->last_func_vset_res_addr.target,
1814 error->last_func_vset_res_addr.lun);
1815
1816 ipr_err_separator;
1817
1818 array_entry = error->array_member;
1819 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1820 ARRAY_SIZE(error->array_member));
ee0f05b8 1821
1822 for (i = 0; i < num_entries; i++, array_entry++) {
1823 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1824 continue;
1825
1826 if (be32_to_cpu(error->exposed_mode_adn) == i)
1827 ipr_err("Exposed Array Member %d:\n", i);
1828 else
1829 ipr_err("Array Member %d:\n", i);
1830
1831 ipr_log_ext_vpd(&array_entry->vpd);
1832 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1833 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1834 "Expected Location");
1835
1836 ipr_err_separator;
1837 }
1838}
1839
1da177e4
LT		 1840/**
1841 * ipr_log_array_error - Log an array configuration error.
1842 * @ioa_cfg: ioa config struct
1843 * @hostrcb: hostrcb struct
1844 *
1845 * Return value:
1846 * none
1847 **/
1848static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1849 struct ipr_hostrcb *hostrcb)
1850{
1851 int i;
1852 struct ipr_hostrcb_type_04_error *error;
1853 struct ipr_hostrcb_array_data_entry *array_entry;
1854 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1855
1856 error = &hostrcb->hcam.u.error.u.type_04_error;
1857
1858 ipr_err_separator;
1859
1860 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1861 error->protection_level,
1862 ioa_cfg->host->host_no,
1863 error->last_func_vset_res_addr.bus,
1864 error->last_func_vset_res_addr.target,
1865 error->last_func_vset_res_addr.lun);
1866
1867 ipr_err_separator;
1868
1869 array_entry = error->array_member;
1870
1871 for (i = 0; i < 18; i++) {
cfc32139 1872 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1873 continue;
1874
fa15b1f6 1875 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1876 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1877 else
1da177e4 1878 ipr_err("Array Member %d:\n", i);
1da177e4 1879
cfc32139 1880 ipr_log_vpd(&array_entry->vpd);
1da177e4 1881
fa15b1f6 1882 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1883 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1884 "Expected Location");
1da177e4
LT		 1885
1886 ipr_err_separator;
1887
1888 if (i == 9)
1889 array_entry = error->array_member2;
1890 else
1891 array_entry++;
1892 }
1893}
1894
1895/**
b0df54bb 1896 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1897 * @ioa_cfg: ioa config struct
b0df54bb 1898 * @data: IOA error data
1899 * @len: data length
1da177e4
LT		 1900 *
1901 * Return value:
1902 * none
1903 **/
359d96e7 1904static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1da177e4
LT		 1905{
1906 int i;
1da177e4 1907
b0df54bb 1908 if (len == 0)
1da177e4
LT		 1909 return;
1910
ac719aba
BK		 1911 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1912 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1913
b0df54bb 1914 for (i = 0; i < len / 4; i += 4) {
1da177e4 1915 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb 1916 be32_to_cpu(data[i]),
1917 be32_to_cpu(data[i+1]),
1918 be32_to_cpu(data[i+2]),
1919 be32_to_cpu(data[i+3]));
1da177e4
LT		 1920 }
1921}
1922
ee0f05b8 1923/**
1924 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1925 * @ioa_cfg: ioa config struct
1926 * @hostrcb: hostrcb struct
1927 *
1928 * Return value:
1929 * none
1930 **/
1931static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1932 struct ipr_hostrcb *hostrcb)
1933{
1934 struct ipr_hostrcb_type_17_error *error;
1935
4565e370
WB		 1936 if (ioa_cfg->sis64)
1937 error = &hostrcb->hcam.u.error64.u.type_17_error;
1938 else
1939 error = &hostrcb->hcam.u.error.u.type_17_error;
1940
ee0f05b8 1941 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1942 strim(error->failure_reason);
ee0f05b8 1943
8cf093e2
BK		 1944 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1945 be32_to_cpu(hostrcb->hcam.u.error.prc));
1946 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1947 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8 1948 be32_to_cpu(hostrcb->hcam.length) -
1949 (offsetof(struct ipr_hostrcb_error, u) +
1950 offsetof(struct ipr_hostrcb_type_17_error, data)));
1951}
1952
b0df54bb 1953/**
1954 * ipr_log_dual_ioa_error - Log a dual adapter error.
1955 * @ioa_cfg: ioa config struct
1956 * @hostrcb: hostrcb struct
1957 *
1958 * Return value:
1959 * none
1960 **/
1961static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1962 struct ipr_hostrcb *hostrcb)
1963{
1964 struct ipr_hostrcb_type_07_error *error;
1965
1966 error = &hostrcb->hcam.u.error.u.type_07_error;
1967 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1968 strim(error->failure_reason);
b0df54bb 1969
8cf093e2
BK		 1970 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1971 be32_to_cpu(hostrcb->hcam.u.error.prc));
1972 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1973 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb 1974 be32_to_cpu(hostrcb->hcam.length) -
1975 (offsetof(struct ipr_hostrcb_error, u) +
1976 offsetof(struct ipr_hostrcb_type_07_error, data)));
1977}
1978
49dc6a18
BK		 1979static const struct {
1980 u8 active;
1981 char *desc;
1982} path_active_desc[] = {
1983 { IPR_PATH_NO_INFO, "Path" },
1984 { IPR_PATH_ACTIVE, "Active path" },
1985 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1986};
1987
1988static const struct {
1989 u8 state;
1990 char *desc;
1991} path_state_desc[] = {
1992 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1993 { IPR_PATH_HEALTHY, "is healthy" },
1994 { IPR_PATH_DEGRADED, "is degraded" },
1995 { IPR_PATH_FAILED, "is failed" }
1996};
1997
1998/**
1999 * ipr_log_fabric_path - Log a fabric path error
2000 * @hostrcb: hostrcb struct
2001 * @fabric: fabric descriptor
2002 *
2003 * Return value:
2004 * none
2005 **/
2006static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2007 struct ipr_hostrcb_fabric_desc *fabric)
2008{
2009 int i, j;
2010 u8 path_state = fabric->path_state;
2011 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2012 u8 state = path_state & IPR_PATH_STATE_MASK;
2013
2014 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2015 if (path_active_desc[i].active != active)
2016 continue;
2017
2018 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2019 if (path_state_desc[j].state != state)
2020 continue;
2021
2022 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2024 path_active_desc[i].desc, path_state_desc[j].desc,
2025 fabric->ioa_port);
2026 } else if (fabric->cascaded_expander == 0xff) {
2027 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2028 path_active_desc[i].desc, path_state_desc[j].desc,
2029 fabric->ioa_port, fabric->phy);
2030 } else if (fabric->phy == 0xff) {
2031 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2032 path_active_desc[i].desc, path_state_desc[j].desc,
2033 fabric->ioa_port, fabric->cascaded_expander);
2034 } else {
2035 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2036 path_active_desc[i].desc, path_state_desc[j].desc,
2037 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2038 }
2039 return;
2040 }
2041 }
2042
2043 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2044 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2045}
2046
4565e370
WB		 2047/**
2048 * ipr_log64_fabric_path - Log a fabric path error
2049 * @hostrcb: hostrcb struct
2050 * @fabric: fabric descriptor
2051 *
2052 * Return value:
2053 * none
2054 **/
2055static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2056 struct ipr_hostrcb64_fabric_desc *fabric)
2057{
2058 int i, j;
2059 u8 path_state = fabric->path_state;
2060 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2061 u8 state = path_state & IPR_PATH_STATE_MASK;
2062 char buffer[IPR_MAX_RES_PATH_LENGTH];
2063
2064 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2065 if (path_active_desc[i].active != active)
2066 continue;
2067
2068 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2069 if (path_state_desc[j].state != state)
2070 continue;
2071
2072 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2073 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2074 ipr_format_res_path(hostrcb->ioa_cfg,
2075 fabric->res_path,
2076 buffer, sizeof(buffer)));
4565e370
WB		 2077 return;
2078 }
2079 }
2080
2081 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2082 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2083 buffer, sizeof(buffer)));
4565e370
WB		 2084}
2085
49dc6a18
BK		 2086static const struct {
2087 u8 type;
2088 char *desc;
2089} path_type_desc[] = {
2090 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2091 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2092 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2093 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2094};
2095
2096static const struct {
2097 u8 status;
2098 char *desc;
2099} path_status_desc[] = {
2100 { IPR_PATH_CFG_NO_PROB, "Functional" },
2101 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2102 { IPR_PATH_CFG_FAILED, "Failed" },
2103 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2104 { IPR_PATH_NOT_DETECTED, "Missing" },
2105 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2106};
2107
2108static const char *link_rate[] = {
2109 "unknown",
2110 "disabled",
2111 "phy reset problem",
2112 "spinup hold",
2113 "port selector",
2114 "unknown",
2115 "unknown",
2116 "unknown",
2117 "1.5Gbps",
2118 "3.0Gbps",
2119 "unknown",
2120 "unknown",
2121 "unknown",
2122 "unknown",
2123 "unknown",
2124 "unknown"
2125};
2126
2127/**
2128 * ipr_log_path_elem - Log a fabric path element.
2129 * @hostrcb: hostrcb struct
2130 * @cfg: fabric path element struct
2131 *
2132 * Return value:
2133 * none
2134 **/
2135static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2136 struct ipr_hostrcb_config_element *cfg)
2137{
2138 int i, j;
2139 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2140 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2141
2142 if (type == IPR_PATH_CFG_NOT_EXIST)
2143 return;
2144
2145 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2146 if (path_type_desc[i].type != type)
2147 continue;
2148
2149 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2150 if (path_status_desc[j].status != status)
2151 continue;
2152
2153 if (type == IPR_PATH_CFG_IOA_PORT) {
2154 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2155 path_status_desc[j].desc, path_type_desc[i].desc,
2156 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2157 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2158 } else {
2159 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2160 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2161 path_status_desc[j].desc, path_type_desc[i].desc,
2162 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2163 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2164 } else if (cfg->cascaded_expander == 0xff) {
2165 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2166 "WWN=%08X%08X\n", path_status_desc[j].desc,
2167 path_type_desc[i].desc, cfg->phy,
2168 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2169 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2170 } else if (cfg->phy == 0xff) {
2171 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2172 "WWN=%08X%08X\n", path_status_desc[j].desc,
2173 path_type_desc[i].desc, cfg->cascaded_expander,
2174 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2175 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2176 } else {
2177 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2178 "WWN=%08X%08X\n", path_status_desc[j].desc,
2179 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2180 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2181 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2182 }
2183 }
2184 return;
2185 }
2186 }
2187
2188 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2189 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2190 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2191 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2192}
2193
4565e370
WB		 2194/**
2195 * ipr_log64_path_elem - Log a fabric path element.
2196 * @hostrcb: hostrcb struct
2197 * @cfg: fabric path element struct
2198 *
2199 * Return value:
2200 * none
2201 **/
2202static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2203 struct ipr_hostrcb64_config_element *cfg)
2204{
2205 int i, j;
2206 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2207 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2208 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2209 char buffer[IPR_MAX_RES_PATH_LENGTH];
2210
2211 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2212 return;
2213
2214 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2215 if (path_type_desc[i].type != type)
2216 continue;
2217
2218 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2219 if (path_status_desc[j].status != status)
2220 continue;
2221
2222 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2223 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2224 ipr_format_res_path(hostrcb->ioa_cfg,
2225 cfg->res_path, buffer, sizeof(buffer)),
2226 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2227 be32_to_cpu(cfg->wwid[0]),
2228 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2229 return;
2230 }
2231 }
2232 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2233 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2234 ipr_format_res_path(hostrcb->ioa_cfg,
2235 cfg->res_path, buffer, sizeof(buffer)),
2236 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2237 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2238}
2239
49dc6a18
BK		 2240/**
2241 * ipr_log_fabric_error - Log a fabric error.
2242 * @ioa_cfg: ioa config struct
2243 * @hostrcb: hostrcb struct
2244 *
2245 * Return value:
2246 * none
2247 **/
2248static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2249 struct ipr_hostrcb *hostrcb)
2250{
2251 struct ipr_hostrcb_type_20_error *error;
2252 struct ipr_hostrcb_fabric_desc *fabric;
2253 struct ipr_hostrcb_config_element *cfg;
2254 int i, add_len;
2255
2256 error = &hostrcb->hcam.u.error.u.type_20_error;
2257 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2258 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2259
2260 add_len = be32_to_cpu(hostrcb->hcam.length) -
2261 (offsetof(struct ipr_hostrcb_error, u) +
2262 offsetof(struct ipr_hostrcb_type_20_error, desc));
2263
2264 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2265 ipr_log_fabric_path(hostrcb, fabric);
2266 for_each_fabric_cfg(fabric, cfg)
2267 ipr_log_path_elem(hostrcb, cfg);
2268
2269 add_len -= be16_to_cpu(fabric->length);
2270 fabric = (struct ipr_hostrcb_fabric_desc *)
2271 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2272 }
2273
359d96e7 2274 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
49dc6a18
BK		 2275}
2276
4565e370
WB		 2277/**
2278 * ipr_log_sis64_array_error - Log a sis64 array error.
2279 * @ioa_cfg: ioa config struct
2280 * @hostrcb: hostrcb struct
2281 *
2282 * Return value:
2283 * none
2284 **/
2285static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2286 struct ipr_hostrcb *hostrcb)
2287{
2288 int i, num_entries;
2289 struct ipr_hostrcb_type_24_error *error;
2290 struct ipr_hostrcb64_array_data_entry *array_entry;
2291 char buffer[IPR_MAX_RES_PATH_LENGTH];
2292 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2293
2294 error = &hostrcb->hcam.u.error64.u.type_24_error;
2295
2296 ipr_err_separator;
2297
2298 ipr_err("RAID %s Array Configuration: %s\n",
2299 error->protection_level,
b3b3b407
BK		 2300 ipr_format_res_path(ioa_cfg, error->last_res_path,
2301 buffer, sizeof(buffer)));
4565e370
WB		 2302
2303 ipr_err_separator;
2304
2305 array_entry = error->array_member;
7262026f
WB		 2306 num_entries = min_t(u32, error->num_entries,
2307 ARRAY_SIZE(error->array_member));
4565e370
WB		 2308
2309 for (i = 0; i < num_entries; i++, array_entry++) {
2310
2311 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2312 continue;
2313
2314 if (error->exposed_mode_adn == i)
2315 ipr_err("Exposed Array Member %d:\n", i);
2316 else
2317 ipr_err("Array Member %d:\n", i);
2318
2319 ipr_err("Array Member %d:\n", i);
2320 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2321 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2322 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2323 buffer, sizeof(buffer)));
7262026f 2324 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2325 ipr_format_res_path(ioa_cfg,
2326 array_entry->expected_res_path,
2327 buffer, sizeof(buffer)));
4565e370
WB		 2328
2329 ipr_err_separator;
2330 }
2331}
2332
2333/**
2334 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2335 * @ioa_cfg: ioa config struct
2336 * @hostrcb: hostrcb struct
2337 *
2338 * Return value:
2339 * none
2340 **/
2341static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2342 struct ipr_hostrcb *hostrcb)
2343{
2344 struct ipr_hostrcb_type_30_error *error;
2345 struct ipr_hostrcb64_fabric_desc *fabric;
2346 struct ipr_hostrcb64_config_element *cfg;
2347 int i, add_len;
2348
2349 error = &hostrcb->hcam.u.error64.u.type_30_error;
2350
2351 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2352 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2353
2354 add_len = be32_to_cpu(hostrcb->hcam.length) -
2355 (offsetof(struct ipr_hostrcb64_error, u) +
2356 offsetof(struct ipr_hostrcb_type_30_error, desc));
2357
2358 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2359 ipr_log64_fabric_path(hostrcb, fabric);
2360 for_each_fabric_cfg(fabric, cfg)
2361 ipr_log64_path_elem(hostrcb, cfg);
2362
2363 add_len -= be16_to_cpu(fabric->length);
2364 fabric = (struct ipr_hostrcb64_fabric_desc *)
2365 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2366 }
2367
359d96e7 2368 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
4565e370
WB		 2369}
2370
b0df54bb 2371/**
2372 * ipr_log_generic_error - Log an adapter error.
2373 * @ioa_cfg: ioa config struct
2374 * @hostrcb: hostrcb struct
2375 *
2376 * Return value:
2377 * none
2378 **/
2379static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2380 struct ipr_hostrcb *hostrcb)
2381{
ac719aba 2382 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb 2383 be32_to_cpu(hostrcb->hcam.length));
2384}
2385
169b9ec8
WX		 2386/**
2387 * ipr_log_sis64_device_error - Log a cache error.
2388 * @ioa_cfg: ioa config struct
2389 * @hostrcb: hostrcb struct
2390 *
2391 * Return value:
2392 * none
2393 **/
2394static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2395 struct ipr_hostrcb *hostrcb)
2396{
2397 struct ipr_hostrcb_type_21_error *error;
2398 char buffer[IPR_MAX_RES_PATH_LENGTH];
2399
2400 error = &hostrcb->hcam.u.error64.u.type_21_error;
2401
2402 ipr_err("-----Failing Device Information-----\n");
2403 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2404 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2405 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2406 ipr_err("Device Resource Path: %s\n",
2407 __ipr_format_res_path(error->res_path,
2408 buffer, sizeof(buffer)));
2409 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2410 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2411 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2412 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2413 ipr_err("SCSI Sense Data:\n");
2414 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2415 ipr_err("SCSI Command Descriptor Block: \n");
2416 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2417
2418 ipr_err("Additional IOA Data:\n");
2419 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2420}
2421
1da177e4
LT		 2422/**
2423 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2424 * @ioasc: IOASC
2425 *
2426 * This function will return the index of into the ipr_error_table
2427 * for the specified IOASC. If the IOASC is not in the table,
2428 * 0 will be returned, which points to the entry used for unknown errors.
2429 *
2430 * Return value:
2431 * index into the ipr_error_table
2432 **/
2433static u32 ipr_get_error(u32 ioasc)
2434{
2435 int i;
2436
2437 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2438 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2439 return i;
2440
2441 return 0;
2442}
2443
2444/**
2445 * ipr_handle_log_data - Log an adapter error.
2446 * @ioa_cfg: ioa config struct
2447 * @hostrcb: hostrcb struct
2448 *
2449 * This function logs an adapter error to the system.
2450 *
2451 * Return value:
2452 * none
2453 **/
2454static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2455 struct ipr_hostrcb *hostrcb)
2456{
2457 u32 ioasc;
2458 int error_index;
3185ea63 2459 struct ipr_hostrcb_type_21_error *error;
1da177e4
LT		 2460
2461 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2462 return;
2463
2464 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2465 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2466
4565e370
WB		 2467 if (ioa_cfg->sis64)
2468 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2469 else
2470 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2471
4565e370
WB		 2472 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2473 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2474 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2475 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2476 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2477 }
2478
2479 error_index = ipr_get_error(ioasc);
2480
2481 if (!ipr_error_table[error_index].log_hcam)
2482 return;
2483
3185ea63 2484 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2485 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2486 error = &hostrcb->hcam.u.error64.u.type_21_error;
2487
2488 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2489 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2490 return;
2491 }
2492
49dc6a18 2493 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2494
2495 /* Set indication we have logged an error */
2496 ioa_cfg->errors_logged++;
2497
933916f3 2498 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2499 return;
cf852037 2500 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2501 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2502
2503 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2504 case IPR_HOST_RCB_OVERLAY_ID_2:
2505 ipr_log_cache_error(ioa_cfg, hostrcb);
2506 break;
2507 case IPR_HOST_RCB_OVERLAY_ID_3:
2508 ipr_log_config_error(ioa_cfg, hostrcb);
2509 break;
2510 case IPR_HOST_RCB_OVERLAY_ID_4:
2511 case IPR_HOST_RCB_OVERLAY_ID_6:
2512 ipr_log_array_error(ioa_cfg, hostrcb);
2513 break;
b0df54bb 2514 case IPR_HOST_RCB_OVERLAY_ID_7:
2515 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2516 break;
ee0f05b8 2517 case IPR_HOST_RCB_OVERLAY_ID_12:
2518 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2519 break;
2520 case IPR_HOST_RCB_OVERLAY_ID_13:
2521 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2522 break;
2523 case IPR_HOST_RCB_OVERLAY_ID_14:
2524 case IPR_HOST_RCB_OVERLAY_ID_16:
2525 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2526 break;
2527 case IPR_HOST_RCB_OVERLAY_ID_17:
2528 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2529 break;
49dc6a18
BK		 2530 case IPR_HOST_RCB_OVERLAY_ID_20:
2531 ipr_log_fabric_error(ioa_cfg, hostrcb);
2532 break;
169b9ec8
WX		 2533 case IPR_HOST_RCB_OVERLAY_ID_21:
2534 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2535 break;
4565e370
WB		 2536 case IPR_HOST_RCB_OVERLAY_ID_23:
2537 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2538 break;
2539 case IPR_HOST_RCB_OVERLAY_ID_24:
2540 case IPR_HOST_RCB_OVERLAY_ID_26:
2541 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2542 break;
2543 case IPR_HOST_RCB_OVERLAY_ID_30:
2544 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2545 break;
cf852037 2546 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2547 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2548 default:
a9cfca96 2549 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2550 break;
2551 }
2552}
2553
2554/**
2555 * ipr_process_error - Op done function for an adapter error log.
2556 * @ipr_cmd: ipr command struct
2557 *
2558 * This function is the op done function for an error log host
2559 * controlled async from the adapter. It will log the error and
2560 * send the HCAM back to the adapter.
2561 *
2562 * Return value:
2563 * none
2564 **/
2565static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2566{
2567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2568 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2569 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2570 u32 fd_ioasc;
2571
2572 if (ioa_cfg->sis64)
2573 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2574 else
2575 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2576
2577 list_del(&hostrcb->queue);
05a6538a 2578 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2579
2580 if (!ioasc) {
2581 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2582 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2583 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4fdd7c7a
BK		 2584 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2585 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
1da177e4
LT		 2586 dev_err(&ioa_cfg->pdev->dev,
2587 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2588 }
2589
2590 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2591}
2592
2593/**
2594 * ipr_timeout - An internally generated op has timed out.
2595 * @ipr_cmd: ipr command struct
2596 *
2597 * This function blocks host requests and initiates an
2598 * adapter reset.
2599 *
2600 * Return value:
2601 * none
2602 **/
2603static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2604{
2605 unsigned long lock_flags = 0;
2606 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2607
2608 ENTER;
2609 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2610
2611 ioa_cfg->errors_logged++;
2612 dev_err(&ioa_cfg->pdev->dev,
2613 "Adapter being reset due to command timeout.\n");
2614
2615 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2616 ioa_cfg->sdt_state = GET_DUMP;
2617
2618 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2619 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2620
2621 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2622 LEAVE;
2623}
2624
2625/**
2626 * ipr_oper_timeout - Adapter timed out transitioning to operational
2627 * @ipr_cmd: ipr command struct
2628 *
2629 * This function blocks host requests and initiates an
2630 * adapter reset.
2631 *
2632 * Return value:
2633 * none
2634 **/
2635static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2636{
2637 unsigned long lock_flags = 0;
2638 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2639
2640 ENTER;
2641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2642
2643 ioa_cfg->errors_logged++;
2644 dev_err(&ioa_cfg->pdev->dev,
2645 "Adapter timed out transitioning to operational.\n");
2646
2647 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2648 ioa_cfg->sdt_state = GET_DUMP;
2649
2650 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2651 if (ipr_fastfail)
2652 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2653 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2654 }
2655
2656 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2657 LEAVE;
2658}
2659
1da177e4
LT		 2660/**
2661 * ipr_find_ses_entry - Find matching SES in SES table
2662 * @res: resource entry struct of SES
2663 *
2664 * Return value:
2665 * pointer to SES table entry / NULL on failure
2666 **/
2667static const struct ipr_ses_table_entry *
2668ipr_find_ses_entry(struct ipr_resource_entry *res)
2669{
2670 int i, j, matches;
3e7ebdfa 2671 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2672 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2673
2674 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2675 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2676 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2677 vpids = &res->std_inq_data.vpids;
2678 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2679 matches++;
2680 else
2681 break;
2682 } else
2683 matches++;
2684 }
2685
2686 if (matches == IPR_PROD_ID_LEN)
2687 return ste;
2688 }
2689
2690 return NULL;
2691}
2692
2693/**
2694 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2695 * @ioa_cfg: ioa config struct
2696 * @bus: SCSI bus
2697 * @bus_width: bus width
2698 *
2699 * Return value:
2700 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2701 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2702 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2703 * max 160MHz = max 320MB/sec).
2704 **/
2705static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2706{
2707 struct ipr_resource_entry *res;
2708 const struct ipr_ses_table_entry *ste;
2709 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2710
2711 /* Loop through each config table entry in the config table buffer */
2712 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2713 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2714 continue;
2715
3e7ebdfa 2716 if (bus != res->bus)
1da177e4
LT		 2717 continue;
2718
2719 if (!(ste = ipr_find_ses_entry(res)))
2720 continue;
2721
2722 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2723 }
2724
2725 return max_xfer_rate;
2726}
2727
2728/**
2729 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2730 * @ioa_cfg: ioa config struct
2731 * @max_delay: max delay in micro-seconds to wait
2732 *
2733 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2734 *
2735 * Return value:
2736 * 0 on success / other on failure
2737 **/
2738static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2739{
2740 volatile u32 pcii_reg;
2741 int delay = 1;
2742
2743 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2744 while (delay < max_delay) {
2745 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2746
2747 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2748 return 0;
2749
2750 /* udelay cannot be used if delay is more than a few milliseconds */
2751 if ((delay / 1000) > MAX_UDELAY_MS)
2752 mdelay(delay / 1000);
2753 else
2754 udelay(delay);
2755
2756 delay += delay;
2757 }
2758 return -EIO;
2759}
2760
dcbad00e
WB		 2761/**
2762 * ipr_get_sis64_dump_data_section - Dump IOA memory
2763 * @ioa_cfg: ioa config struct
2764 * @start_addr: adapter address to dump
2765 * @dest: destination kernel buffer
2766 * @length_in_words: length to dump in 4 byte words
2767 *
2768 * Return value:
2769 * 0 on success
2770 **/
2771static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2772 u32 start_addr,
2773 __be32 *dest, u32 length_in_words)
2774{
2775 int i;
2776
2777 for (i = 0; i < length_in_words; i++) {
2778 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2779 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2780 dest++;
2781 }
2782
2783 return 0;
2784}
2785
1da177e4
LT		 2786/**
2787 * ipr_get_ldump_data_section - Dump IOA memory
2788 * @ioa_cfg: ioa config struct
2789 * @start_addr: adapter address to dump
2790 * @dest: destination kernel buffer
2791 * @length_in_words: length to dump in 4 byte words
2792 *
2793 * Return value:
2794 * 0 on success / -EIO on failure
2795 **/
2796static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2797 u32 start_addr,
2798 __be32 *dest, u32 length_in_words)
2799{
2800 volatile u32 temp_pcii_reg;
2801 int i, delay = 0;
2802
dcbad00e
WB		 2803 if (ioa_cfg->sis64)
2804 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2805 dest, length_in_words);
2806
1da177e4
LT		 2807 /* Write IOA interrupt reg starting LDUMP state */
2808 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2809 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2810
2811 /* Wait for IO debug acknowledge */
2812 if (ipr_wait_iodbg_ack(ioa_cfg,
2813 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2814 dev_err(&ioa_cfg->pdev->dev,
2815 "IOA dump long data transfer timeout\n");
2816 return -EIO;
2817 }
2818
2819 /* Signal LDUMP interlocked - clear IO debug ack */
2820 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2821 ioa_cfg->regs.clr_interrupt_reg);
2822
2823 /* Write Mailbox with starting address */
2824 writel(start_addr, ioa_cfg->ioa_mailbox);
2825
2826 /* Signal address valid - clear IOA Reset alert */
2827 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2828 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2829
2830 for (i = 0; i < length_in_words; i++) {
2831 /* Wait for IO debug acknowledge */
2832 if (ipr_wait_iodbg_ack(ioa_cfg,
2833 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2834 dev_err(&ioa_cfg->pdev->dev,
2835 "IOA dump short data transfer timeout\n");
2836 return -EIO;
2837 }
2838
2839 /* Read data from mailbox and increment destination pointer */
2840 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2841 dest++;
2842
2843 /* For all but the last word of data, signal data received */
2844 if (i < (length_in_words - 1)) {
2845 /* Signal dump data received - Clear IO debug Ack */
2846 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2847 ioa_cfg->regs.clr_interrupt_reg);
2848 }
2849 }
2850
2851 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2852 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2853 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2854
2855 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2856 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2857
2858 /* Signal dump data received - Clear IO debug Ack */
2859 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2860 ioa_cfg->regs.clr_interrupt_reg);
2861
2862 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2863 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2864 temp_pcii_reg =
214777ba 2865 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2866
2867 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2868 return 0;
2869
2870 udelay(10);
2871 delay += 10;
2872 }
2873
2874 return 0;
2875}
2876
2877#ifdef CONFIG_SCSI_IPR_DUMP
2878/**
2879 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2880 * @ioa_cfg: ioa config struct
2881 * @pci_address: adapter address
2882 * @length: length of data to copy
2883 *
2884 * Copy data from PCI adapter to kernel buffer.
2885 * Note: length MUST be a 4 byte multiple
2886 * Return value:
2887 * 0 on success / other on failure
2888 **/
2889static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2890 unsigned long pci_address, u32 length)
2891{
2892 int bytes_copied = 0;
4d4dd706 2893 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2894 __be32 *page;
2895 unsigned long lock_flags = 0;
2896 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2897
4d4dd706
KSS		 2898 if (ioa_cfg->sis64)
2899 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2900 else
2901 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2902
1da177e4 2903 while (bytes_copied < length &&
4d4dd706 2904 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2905 if (ioa_dump->page_offset >= PAGE_SIZE ||
2906 ioa_dump->page_offset == 0) {
2907 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2908
2909 if (!page) {
2910 ipr_trace;
2911 return bytes_copied;
2912 }
2913
2914 ioa_dump->page_offset = 0;
2915 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2916 ioa_dump->next_page_index++;
2917 } else
2918 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2919
2920 rem_len = length - bytes_copied;
2921 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2922 cur_len = min(rem_len, rem_page_len);
2923
2924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2925 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2926 rc = -EIO;
2927 } else {
2928 rc = ipr_get_ldump_data_section(ioa_cfg,
2929 pci_address + bytes_copied,
2930 &page[ioa_dump->page_offset / 4],
2931 (cur_len / sizeof(u32)));
2932 }
2933 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2934
2935 if (!rc) {
2936 ioa_dump->page_offset += cur_len;
2937 bytes_copied += cur_len;
2938 } else {
2939 ipr_trace;
2940 break;
2941 }
2942 schedule();
2943 }
2944
2945 return bytes_copied;
2946}
2947
2948/**
2949 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2950 * @hdr: dump entry header struct
2951 *
2952 * Return value:
2953 * nothing
2954 **/
2955static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2956{
2957 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2958 hdr->num_elems = 1;
2959 hdr->offset = sizeof(*hdr);
2960 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2961}
2962
2963/**
2964 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2965 * @ioa_cfg: ioa config struct
2966 * @driver_dump: driver dump struct
2967 *
2968 * Return value:
2969 * nothing
2970 **/
2971static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2972 struct ipr_driver_dump *driver_dump)
2973{
2974 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2975
2976 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2977 driver_dump->ioa_type_entry.hdr.len =
2978 sizeof(struct ipr_dump_ioa_type_entry) -
2979 sizeof(struct ipr_dump_entry_header);
2980 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2981 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2982 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2983 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2984 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2985 ucode_vpd->minor_release[1];
2986 driver_dump->hdr.num_entries++;
2987}
2988
2989/**
2990 * ipr_dump_version_data - Fill in the driver version in the dump.
2991 * @ioa_cfg: ioa config struct
2992 * @driver_dump: driver dump struct
2993 *
2994 * Return value:
2995 * nothing
2996 **/
2997static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2998 struct ipr_driver_dump *driver_dump)
2999{
3000 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3001 driver_dump->version_entry.hdr.len =
3002 sizeof(struct ipr_dump_version_entry) -
3003 sizeof(struct ipr_dump_entry_header);
3004 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3005 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3006 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3007 driver_dump->hdr.num_entries++;
3008}
3009
3010/**
3011 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3012 * @ioa_cfg: ioa config struct
3013 * @driver_dump: driver dump struct
3014 *
3015 * Return value:
3016 * nothing
3017 **/
3018static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3019 struct ipr_driver_dump *driver_dump)
3020{
3021 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3022 driver_dump->trace_entry.hdr.len =
3023 sizeof(struct ipr_dump_trace_entry) -
3024 sizeof(struct ipr_dump_entry_header);
3025 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3026 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3027 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3028 driver_dump->hdr.num_entries++;
3029}
3030
3031/**
3032 * ipr_dump_location_data - Fill in the IOA location in the dump.
3033 * @ioa_cfg: ioa config struct
3034 * @driver_dump: driver dump struct
3035 *
3036 * Return value:
3037 * nothing
3038 **/
3039static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3040 struct ipr_driver_dump *driver_dump)
3041{
3042 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3043 driver_dump->location_entry.hdr.len =
3044 sizeof(struct ipr_dump_location_entry) -
3045 sizeof(struct ipr_dump_entry_header);
3046 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3047 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3048 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3049 driver_dump->hdr.num_entries++;
3050}
3051
3052/**
3053 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3054 * @ioa_cfg: ioa config struct
3055 * @dump: dump struct
3056 *
3057 * Return value:
3058 * nothing
3059 **/
3060static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3061{
3062 unsigned long start_addr, sdt_word;
3063 unsigned long lock_flags = 0;
3064 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3065 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3066 u32 num_entries, max_num_entries, start_off, end_off;
3067 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3068 struct ipr_sdt *sdt;
dcbad00e 3069 int valid = 1;
1da177e4
LT		 3070 int i;
3071
3072 ENTER;
3073
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3075
41e9a696 3076 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3078 return;
3079 }
3080
110def85
WB		 3081 if (ioa_cfg->sis64) {
3082 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3083 ssleep(IPR_DUMP_DELAY_SECONDS);
3084 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3085 }
3086
1da177e4
LT		 3087 start_addr = readl(ioa_cfg->ioa_mailbox);
3088
dcbad00e 3089 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3090 dev_err(&ioa_cfg->pdev->dev,
3091 "Invalid dump table format: %lx\n", start_addr);
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3093 return;
3094 }
3095
3096 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3097
3098 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3099
3100 /* Initialize the overall dump header */
3101 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3102 driver_dump->hdr.num_entries = 1;
3103 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3104 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3105 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3106 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3107
3108 ipr_dump_version_data(ioa_cfg, driver_dump);
3109 ipr_dump_location_data(ioa_cfg, driver_dump);
3110 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3111 ipr_dump_trace_data(ioa_cfg, driver_dump);
3112
3113 /* Update dump_header */
3114 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3115
3116 /* IOA Dump entry */
3117 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3118 ioa_dump->hdr.len = 0;
3119 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3120 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3121
3122 /* First entries in sdt are actually a list of dump addresses and
3123 lengths to gather the real dump data. sdt represents the pointer
3124 to the ioa generated dump table. Dump data will be extracted based
3125 on entries in this table */
3126 sdt = &ioa_dump->sdt;
3127
4d4dd706
KSS		 3128 if (ioa_cfg->sis64) {
3129 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3130 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3131 } else {
3132 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3133 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3134 }
3135
3136 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3137 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3138 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3139 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3140
3141 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3142 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3143 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3144 dev_err(&ioa_cfg->pdev->dev,
3145 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3146 rc, be32_to_cpu(sdt->hdr.state));
3147 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3148 ioa_cfg->sdt_state = DUMP_OBTAINED;
3149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3150 return;
3151 }
3152
3153 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3154
4d4dd706
KSS		 3155 if (num_entries > max_num_entries)
3156 num_entries = max_num_entries;
3157
3158 /* Update dump length to the actual data to be copied */
3159 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3160 if (ioa_cfg->sis64)
3161 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3162 else
3163 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3164
3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3166
3167 for (i = 0; i < num_entries; i++) {
4d4dd706 3168 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3169 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3170 break;
3171 }
3172
3173 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3174 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3175 if (ioa_cfg->sis64)
3176 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3177 else {
3178 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3179 end_off = be32_to_cpu(sdt->entry[i].end_token);
3180
3181 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3182 bytes_to_copy = end_off - start_off;
3183 else
3184 valid = 0;
3185 }
3186 if (valid) {
4d4dd706 3187 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3188 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3189 continue;
3190 }
3191
3192 /* Copy data from adapter to driver buffers */
3193 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3194 bytes_to_copy);
3195
3196 ioa_dump->hdr.len += bytes_copied;
3197
3198 if (bytes_copied != bytes_to_copy) {
3199 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3200 break;
3201 }
3202 }
3203 }
3204 }
3205
3206 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3207
3208 /* Update dump_header */
3209 driver_dump->hdr.len += ioa_dump->hdr.len;
3210 wmb();
3211 ioa_cfg->sdt_state = DUMP_OBTAINED;
3212 LEAVE;
3213}
3214
3215#else
203fa3fe 3216#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3217#endif
3218
3219/**
3220 * ipr_release_dump - Free adapter dump memory
3221 * @kref: kref struct
3222 *
3223 * Return value:
3224 * nothing
3225 **/
3226static void ipr_release_dump(struct kref *kref)
3227{
203fa3fe 3228 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3229 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3230 unsigned long lock_flags = 0;
3231 int i;
3232
3233 ENTER;
3234 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3235 ioa_cfg->dump = NULL;
3236 ioa_cfg->sdt_state = INACTIVE;
3237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3238
3239 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3240 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3241
4d4dd706 3242 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3243 kfree(dump);
3244 LEAVE;
3245}
3246
3247/**
3248 * ipr_worker_thread - Worker thread
c4028958 3249 * @work: ioa config struct
1da177e4
LT		 3250 *
3251 * Called at task level from a work thread. This function takes care
3252 * of adding and removing device from the mid-layer as configuration
3253 * changes are detected by the adapter.
3254 *
3255 * Return value:
3256 * nothing
3257 **/
c4028958 3258static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3259{
3260 unsigned long lock_flags;
3261 struct ipr_resource_entry *res;
3262 struct scsi_device *sdev;
3263 struct ipr_dump *dump;
c4028958
DH		 3264 struct ipr_ioa_cfg *ioa_cfg =
3265 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3266 u8 bus, target, lun;
3267 int did_work;
3268
3269 ENTER;
3270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3271
41e9a696 3272 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3273 dump = ioa_cfg->dump;
3274 if (!dump) {
3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3276 return;
3277 }
3278 kref_get(&dump->kref);
3279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3280 ipr_get_ioa_dump(ioa_cfg, dump);
3281 kref_put(&dump->kref, ipr_release_dump);
3282
3283 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3284 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3285 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3287 return;
3288 }
3289
3290restart:
3291 do {
3292 did_work = 0;
f688f96d 3293 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4
LT		 3294 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3295 return;
3296 }
3297
3298 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3299 if (res->del_from_ml && res->sdev) {
3300 did_work = 1;
3301 sdev = res->sdev;
3302 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3303 if (!res->add_to_ml)
3304 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3305 else
3306 res->del_from_ml = 0;
1da177e4
LT		 3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3308 scsi_remove_device(sdev);
3309 scsi_device_put(sdev);
3310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3311 }
3312 break;
3313 }
3314 }
203fa3fe 3315 } while (did_work);
1da177e4
LT		 3316
3317 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3318 if (res->add_to_ml) {
3e7ebdfa
WB		 3319 bus = res->bus;
3320 target = res->target;
3321 lun = res->lun;
1121b794 3322 res->add_to_ml = 0;
1da177e4
LT		 3323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3324 scsi_add_device(ioa_cfg->host, bus, target, lun);
3325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3326 goto restart;
3327 }
3328 }
3329
f688f96d 3330 ioa_cfg->scan_done = 1;
1da177e4 3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3332 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3333 LEAVE;
3334}
3335
3336#ifdef CONFIG_SCSI_IPR_TRACE
3337/**
3338 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3339 * @filp: open sysfs file
1da177e4 3340 * @kobj: kobject struct
91a69029 3341 * @bin_attr: bin_attribute struct
1da177e4
LT		 3342 * @buf: buffer
3343 * @off: offset
3344 * @count: buffer size
3345 *
3346 * Return value:
3347 * number of bytes printed to buffer
3348 **/
2c3c8bea 3349static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3350 struct bin_attribute *bin_attr,
3351 char *buf, loff_t off, size_t count)
1da177e4 3352{
ee959b00
TJ		 3353 struct device *dev = container_of(kobj, struct device, kobj);
3354 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3355 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3356 unsigned long lock_flags = 0;
d777aaf3 3357 ssize_t ret;
1da177e4
LT		 3358
3359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3360 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3361 IPR_TRACE_SIZE);
1da177e4 3362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3363
3364 return ret;
1da177e4
LT		 3365}
3366
3367static struct bin_attribute ipr_trace_attr = {
3368 .attr = {
3369 .name = "trace",
3370 .mode = S_IRUGO,
3371 },
3372 .size = 0,
3373 .read = ipr_read_trace,
3374};
3375#endif
3376
3377/**
3378 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3379 * @dev: class device struct
3380 * @buf: buffer
1da177e4
LT		 3381 *
3382 * Return value:
3383 * number of bytes printed to buffer
3384 **/
ee959b00
TJ		 3385static ssize_t ipr_show_fw_version(struct device *dev,
3386 struct device_attribute *attr, char *buf)
1da177e4 3387{
ee959b00 3388 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3390 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3391 unsigned long lock_flags = 0;
3392 int len;
3393
3394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3395 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3396 ucode_vpd->major_release, ucode_vpd->card_type,
3397 ucode_vpd->minor_release[0],
3398 ucode_vpd->minor_release[1]);
3399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3400 return len;
3401}
3402
ee959b00 3403static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3404 .attr = {
3405 .name = "fw_version",
3406 .mode = S_IRUGO,
3407 },
3408 .show = ipr_show_fw_version,
3409};
3410
3411/**
3412 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3413 * @dev: class device struct
3414 * @buf: buffer
1da177e4
LT		 3415 *
3416 * Return value:
3417 * number of bytes printed to buffer
3418 **/
ee959b00
TJ		 3419static ssize_t ipr_show_log_level(struct device *dev,
3420 struct device_attribute *attr, char *buf)
1da177e4 3421{
ee959b00 3422 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3423 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3424 unsigned long lock_flags = 0;
3425 int len;
3426
3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3428 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3430 return len;
3431}
3432
3433/**
3434 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3435 * @dev: class device struct
3436 * @buf: buffer
1da177e4
LT		 3437 *
3438 * Return value:
3439 * number of bytes printed to buffer
3440 **/
ee959b00 3441static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3442 struct device_attribute *attr,
1da177e4
LT		 3443 const char *buf, size_t count)
3444{
ee959b00 3445 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3446 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3447 unsigned long lock_flags = 0;
3448
3449 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3450 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3452 return strlen(buf);
3453}
3454
ee959b00 3455static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3456 .attr = {
3457 .name = "log_level",
3458 .mode = S_IRUGO | S_IWUSR,
3459 },
3460 .show = ipr_show_log_level,
3461 .store = ipr_store_log_level
3462};
3463
3464/**
3465 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3466 * @dev: device struct
3467 * @buf: buffer
3468 * @count: buffer size
1da177e4
LT		 3469 *
3470 * This function will reset the adapter and wait a reasonable
3471 * amount of time for any errors that the adapter might log.
3472 *
3473 * Return value:
3474 * count on success / other on failure
3475 **/
ee959b00
TJ		 3476static ssize_t ipr_store_diagnostics(struct device *dev,
3477 struct device_attribute *attr,
1da177e4
LT		 3478 const char *buf, size_t count)
3479{
ee959b00 3480 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3481 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3482 unsigned long lock_flags = 0;
3483 int rc = count;
3484
3485 if (!capable(CAP_SYS_ADMIN))
3486 return -EACCES;
3487
1da177e4 3488 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3489 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3490 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3491 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3493 }
3494
1da177e4
LT		 3495 ioa_cfg->errors_logged = 0;
3496 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3497
3498 if (ioa_cfg->in_reset_reload) {
3499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3500 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3501
3502 /* Wait for a second for any errors to be logged */
3503 msleep(1000);
3504 } else {
3505 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3506 return -EIO;
3507 }
3508
3509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3510 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3511 rc = -EIO;
3512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3513
3514 return rc;
3515}
3516
ee959b00 3517static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3518 .attr = {
3519 .name = "run_diagnostics",
3520 .mode = S_IWUSR,
3521 },
3522 .store = ipr_store_diagnostics
3523};
3524
f37eb54b 3525/**
3526 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3527 * @class_dev: device struct
3528 * @buf: buffer
f37eb54b 3529 *
3530 * Return value:
3531 * number of bytes printed to buffer
3532 **/
ee959b00
TJ		 3533static ssize_t ipr_show_adapter_state(struct device *dev,
3534 struct device_attribute *attr, char *buf)
f37eb54b 3535{
ee959b00 3536 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3537 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3538 unsigned long lock_flags = 0;
3539 int len;
3540
3541 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3542 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b 3543 len = snprintf(buf, PAGE_SIZE, "offline\n");
3544 else
3545 len = snprintf(buf, PAGE_SIZE, "online\n");
3546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3547 return len;
3548}
3549
3550/**
3551 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3552 * @dev: device struct
3553 * @buf: buffer
3554 * @count: buffer size
f37eb54b 3555 *
3556 * This function will change the adapter's state.
3557 *
3558 * Return value:
3559 * count on success / other on failure
3560 **/
ee959b00
TJ		 3561static ssize_t ipr_store_adapter_state(struct device *dev,
3562 struct device_attribute *attr,
f37eb54b 3563 const char *buf, size_t count)
3564{
ee959b00 3565 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3566 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3567 unsigned long lock_flags;
56d6aa33 3568 int result = count, i;
f37eb54b 3569
3570 if (!capable(CAP_SYS_ADMIN))
3571 return -EACCES;
3572
3573 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3574 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3575 !strncmp(buf, "online", 6)) {
3576 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3577 spin_lock(&ioa_cfg->hrrq[i]._lock);
3578 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3579 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3580 }
3581 wmb();
f37eb54b 3582 ioa_cfg->reset_retries = 0;
3583 ioa_cfg->in_ioa_bringdown = 0;
3584 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3585 }
3586 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3587 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3588
3589 return result;
3590}
3591
ee959b00 3592static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3593 .attr = {
49dd0961 3594 .name = "online_state",
f37eb54b 3595 .mode = S_IRUGO | S_IWUSR,
3596 },
3597 .show = ipr_show_adapter_state,
3598 .store = ipr_store_adapter_state
3599};
3600
1da177e4
LT		 3601/**
3602 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3603 * @dev: device struct
3604 * @buf: buffer
3605 * @count: buffer size
1da177e4
LT		 3606 *
3607 * This function will reset the adapter.
3608 *
3609 * Return value:
3610 * count on success / other on failure
3611 **/
ee959b00
TJ		 3612static ssize_t ipr_store_reset_adapter(struct device *dev,
3613 struct device_attribute *attr,
1da177e4
LT		 3614 const char *buf, size_t count)
3615{
ee959b00 3616 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3617 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3618 unsigned long lock_flags;
3619 int result = count;
3620
3621 if (!capable(CAP_SYS_ADMIN))
3622 return -EACCES;
3623
3624 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3625 if (!ioa_cfg->in_reset_reload)
3626 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3627 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3628 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3629
3630 return result;
3631}
3632
ee959b00 3633static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3634 .attr = {
3635 .name = "reset_host",
3636 .mode = S_IWUSR,
3637 },
3638 .store = ipr_store_reset_adapter
3639};
3640
b53d124a 3641static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3642 /**
3643 * ipr_show_iopoll_weight - Show ipr polling mode
3644 * @dev: class device struct
3645 * @buf: buffer
3646 *
3647 * Return value:
3648 * number of bytes printed to buffer
3649 **/
3650static ssize_t ipr_show_iopoll_weight(struct device *dev,
3651 struct device_attribute *attr, char *buf)
3652{
3653 struct Scsi_Host *shost = class_to_shost(dev);
3654 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3655 unsigned long lock_flags = 0;
3656 int len;
3657
3658 spin_lock_irqsave(shost->host_lock, lock_flags);
3659 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3660 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3661
3662 return len;
3663}
3664
3665/**
3666 * ipr_store_iopoll_weight - Change the adapter's polling mode
3667 * @dev: class device struct
3668 * @buf: buffer
3669 *
3670 * Return value:
3671 * number of bytes printed to buffer
3672 **/
3673static ssize_t ipr_store_iopoll_weight(struct device *dev,
3674 struct device_attribute *attr,
3675 const char *buf, size_t count)
3676{
3677 struct Scsi_Host *shost = class_to_shost(dev);
3678 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3679 unsigned long user_iopoll_weight;
3680 unsigned long lock_flags = 0;
3681 int i;
3682
3683 if (!ioa_cfg->sis64) {
3684 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3685 return -EINVAL;
3686 }
3687 if (kstrtoul(buf, 10, &user_iopoll_weight))
3688 return -EINVAL;
3689
3690 if (user_iopoll_weight > 256) {
3691 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3692 return -EINVAL;
3693 }
3694
3695 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3696 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3697 return strlen(buf);
3698 }
3699
89f8b33c 3700 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3701 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3702 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3703 }
3704
3705 spin_lock_irqsave(shost->host_lock, lock_flags);
3706 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3707 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3708 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3709 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3710 ioa_cfg->iopoll_weight, ipr_iopoll);
3711 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3712 }
3713 }
3714 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3715
3716 return strlen(buf);
3717}
3718
3719static struct device_attribute ipr_iopoll_weight_attr = {
3720 .attr = {
3721 .name = "iopoll_weight",
3722 .mode = S_IRUGO | S_IWUSR,
3723 },
3724 .show = ipr_show_iopoll_weight,
3725 .store = ipr_store_iopoll_weight
3726};
3727
1da177e4
LT		 3728/**
3729 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3730 * @buf_len: buffer length
3731 *
3732 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3733 * list to use for microcode download
3734 *
3735 * Return value:
3736 * pointer to sglist / NULL on failure
3737 **/
3738static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3739{
3740 int sg_size, order, bsize_elem, num_elem, i, j;
3741 struct ipr_sglist *sglist;
3742 struct scatterlist *scatterlist;
3743 struct page *page;
3744
3745 /* Get the minimum size per scatter/gather element */
3746 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3747
3748 /* Get the actual size per element */
3749 order = get_order(sg_size);
3750
3751 /* Determine the actual number of bytes per element */
3752 bsize_elem = PAGE_SIZE * (1 << order);
3753
3754 /* Determine the actual number of sg entries needed */
3755 if (buf_len % bsize_elem)
3756 num_elem = (buf_len / bsize_elem) + 1;
3757 else
3758 num_elem = buf_len / bsize_elem;
3759
3760 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3761 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3762 (sizeof(struct scatterlist) * (num_elem - 1)),
3763 GFP_KERNEL);
3764
3765 if (sglist == NULL) {
3766 ipr_trace;
3767 return NULL;
3768 }
3769
1da177e4 3770 scatterlist = sglist->scatterlist;
45711f1a 3771 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3772
3773 sglist->order = order;
3774 sglist->num_sg = num_elem;
3775
3776 /* Allocate a bunch of sg elements */
3777 for (i = 0; i < num_elem; i++) {
3778 page = alloc_pages(GFP_KERNEL, order);
3779 if (!page) {
3780 ipr_trace;
3781
3782 /* Free up what we already allocated */
3783 for (j = i - 1; j >= 0; j--)
45711f1a 3784 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3785 kfree(sglist);
3786 return NULL;
3787 }
3788
642f1490 3789 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3790 }
3791
3792 return sglist;
3793}
3794
3795/**
3796 * ipr_free_ucode_buffer - Frees a microcode download buffer
3797 * @p_dnld: scatter/gather list pointer
3798 *
3799 * Free a DMA'able ucode download buffer previously allocated with
3800 * ipr_alloc_ucode_buffer
3801 *
3802 * Return value:
3803 * nothing
3804 **/
3805static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3806{
3807 int i;
3808
3809 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3810 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3811
3812 kfree(sglist);
3813}
3814
3815/**
3816 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3817 * @sglist: scatter/gather list pointer
3818 * @buffer: buffer pointer
3819 * @len: buffer length
3820 *
3821 * Copy a microcode image from a user buffer into a buffer allocated by
3822 * ipr_alloc_ucode_buffer
3823 *
3824 * Return value:
3825 * 0 on success / other on failure
3826 **/
3827static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3828 u8 *buffer, u32 len)
3829{
3830 int bsize_elem, i, result = 0;
3831 struct scatterlist *scatterlist;
3832 void *kaddr;
3833
3834 /* Determine the actual number of bytes per element */
3835 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3836
3837 scatterlist = sglist->scatterlist;
3838
3839 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3840 struct page *page = sg_page(&scatterlist[i]);
3841
3842 kaddr = kmap(page);
1da177e4 3843 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3844 kunmap(page);
1da177e4
LT		 3845
3846 scatterlist[i].length = bsize_elem;
3847
3848 if (result != 0) {
3849 ipr_trace;
3850 return result;
3851 }
3852 }
3853
3854 if (len % bsize_elem) {
45711f1a
JA		 3855 struct page *page = sg_page(&scatterlist[i]);
3856
3857 kaddr = kmap(page);
1da177e4 3858 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3859 kunmap(page);
1da177e4
LT		 3860
3861 scatterlist[i].length = len % bsize_elem;
3862 }
3863
3864 sglist->buffer_len = len;
3865 return result;
3866}
3867
a32c055f
WB		 3868/**
3869 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3870 * @ipr_cmd: ipr command struct
3871 * @sglist: scatter/gather list
3872 *
3873 * Builds a microcode download IOA data list (IOADL).
3874 *
3875 **/
3876static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3877 struct ipr_sglist *sglist)
3878{
3879 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3880 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3881 struct scatterlist *scatterlist = sglist->scatterlist;
3882 int i;
3883
3884 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3885 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3886 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3887
3888 ioarcb->ioadl_len =
3889 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3890 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3891 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3892 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3893 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3894 }
3895
3896 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3897}
3898
1da177e4 3899/**
12baa420 3900 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3901 * @ipr_cmd: ipr command struct
3902 * @sglist: scatter/gather list
1da177e4 3903 *
12baa420 3904 * Builds a microcode download IOA data list (IOADL).
1da177e4 3905 *
1da177e4 3906 **/
12baa420 3907static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3908 struct ipr_sglist *sglist)
1da177e4 3909{
1da177e4 3910 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3911 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3912 struct scatterlist *scatterlist = sglist->scatterlist;
3913 int i;
3914
12baa420 3915 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3916 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3917 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3918
3919 ioarcb->ioadl_len =
1da177e4
LT		 3920 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3921
3922 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3923 ioadl[i].flags_and_data_len =
3924 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3925 ioadl[i].address =
3926 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3927 }
3928
12baa420 3929 ioadl[i-1].flags_and_data_len |=
3930 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3931}
3932
3933/**
3934 * ipr_update_ioa_ucode - Update IOA's microcode
3935 * @ioa_cfg: ioa config struct
3936 * @sglist: scatter/gather list
3937 *
3938 * Initiate an adapter reset to update the IOA's microcode
3939 *
3940 * Return value:
3941 * 0 on success / -EIO on failure
3942 **/
3943static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3944 struct ipr_sglist *sglist)
3945{
3946 unsigned long lock_flags;
3947
3948 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3949 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3950 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3951 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3952 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3953 }
12baa420 3954
3955 if (ioa_cfg->ucode_sglist) {
3956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3957 dev_err(&ioa_cfg->pdev->dev,
3958 "Microcode download already in progress\n");
3959 return -EIO;
1da177e4 3960 }
12baa420 3961
d73341bf
AB		 3962 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3963 sglist->scatterlist, sglist->num_sg,
3964 DMA_TO_DEVICE);
12baa420 3965
3966 if (!sglist->num_dma_sg) {
3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3968 dev_err(&ioa_cfg->pdev->dev,
3969 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3970 return -EIO;
3971 }
3972
12baa420 3973 ioa_cfg->ucode_sglist = sglist;
3974 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3975 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3976 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3977
3978 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3979 ioa_cfg->ucode_sglist = NULL;
3980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3981 return 0;
3982}
3983
3984/**
3985 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3986 * @class_dev: device struct
3987 * @buf: buffer
3988 * @count: buffer size
1da177e4
LT		 3989 *
3990 * This function will update the firmware on the adapter.
3991 *
3992 * Return value:
3993 * count on success / other on failure
3994 **/
ee959b00
TJ		 3995static ssize_t ipr_store_update_fw(struct device *dev,
3996 struct device_attribute *attr,
3997 const char *buf, size_t count)
1da177e4 3998{
ee959b00 3999 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 4000 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4001 struct ipr_ucode_image_header *image_hdr;
4002 const struct firmware *fw_entry;
4003 struct ipr_sglist *sglist;
1da177e4
LT		 4004 char fname[100];
4005 char *src;
4006 int len, result, dnld_size;
4007
4008 if (!capable(CAP_SYS_ADMIN))
4009 return -EACCES;
4010
4011 len = snprintf(fname, 99, "%s", buf);
4012 fname[len-1] = '\0';
4013
203fa3fe 4014 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 4015 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4016 return -EIO;
4017 }
4018
4019 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4020
1da177e4
LT		 4021 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4022 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4023 sglist = ipr_alloc_ucode_buffer(dnld_size);
4024
4025 if (!sglist) {
4026 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4027 release_firmware(fw_entry);
4028 return -ENOMEM;
4029 }
4030
4031 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4032
4033 if (result) {
4034 dev_err(&ioa_cfg->pdev->dev,
4035 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4036 goto out;
1da177e4
LT		 4037 }
4038
14ed9cc7
WB		 4039 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4040
12baa420 4041 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4042
12baa420 4043 if (!result)
4044 result = count;
4045out:
1da177e4
LT		 4046 ipr_free_ucode_buffer(sglist);
4047 release_firmware(fw_entry);
12baa420 4048 return result;
1da177e4
LT		 4049}
4050
ee959b00 4051static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4052 .attr = {
4053 .name = "update_fw",
4054 .mode = S_IWUSR,
4055 },
4056 .store = ipr_store_update_fw
4057};
4058
75576bb9
WB		 4059/**
4060 * ipr_show_fw_type - Show the adapter's firmware type.
4061 * @dev: class device struct
4062 * @buf: buffer
4063 *
4064 * Return value:
4065 * number of bytes printed to buffer
4066 **/
4067static ssize_t ipr_show_fw_type(struct device *dev,
4068 struct device_attribute *attr, char *buf)
4069{
4070 struct Scsi_Host *shost = class_to_shost(dev);
4071 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4072 unsigned long lock_flags = 0;
4073 int len;
4074
4075 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4076 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4078 return len;
4079}
4080
4081static struct device_attribute ipr_ioa_fw_type_attr = {
4082 .attr = {
4083 .name = "fw_type",
4084 .mode = S_IRUGO,
4085 },
4086 .show = ipr_show_fw_type
4087};
4088
ee959b00 4089static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4090 &ipr_fw_version_attr,
4091 &ipr_log_level_attr,
4092 &ipr_diagnostics_attr,
f37eb54b 4093 &ipr_ioa_state_attr,
1da177e4
LT		 4094 &ipr_ioa_reset_attr,
4095 &ipr_update_fw_attr,
75576bb9 4096 &ipr_ioa_fw_type_attr,
b53d124a 4097 &ipr_iopoll_weight_attr,
1da177e4
LT		 4098 NULL,
4099};
4100
4101#ifdef CONFIG_SCSI_IPR_DUMP
4102/**
4103 * ipr_read_dump - Dump the adapter
2c3c8bea 4104 * @filp: open sysfs file
1da177e4 4105 * @kobj: kobject struct
91a69029 4106 * @bin_attr: bin_attribute struct
1da177e4
LT		 4107 * @buf: buffer
4108 * @off: offset
4109 * @count: buffer size
4110 *
4111 * Return value:
4112 * number of bytes printed to buffer
4113 **/
2c3c8bea 4114static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4115 struct bin_attribute *bin_attr,
4116 char *buf, loff_t off, size_t count)
1da177e4 4117{
ee959b00 4118 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4119 struct Scsi_Host *shost = class_to_shost(cdev);
4120 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4121 struct ipr_dump *dump;
4122 unsigned long lock_flags = 0;
4123 char *src;
4d4dd706 4124 int len, sdt_end;
1da177e4
LT		 4125 size_t rc = count;
4126
4127 if (!capable(CAP_SYS_ADMIN))
4128 return -EACCES;
4129
4130 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4131 dump = ioa_cfg->dump;
4132
4133 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4135 return 0;
4136 }
4137 kref_get(&dump->kref);
4138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4139
4140 if (off > dump->driver_dump.hdr.len) {
4141 kref_put(&dump->kref, ipr_release_dump);
4142 return 0;
4143 }
4144
4145 if (off + count > dump->driver_dump.hdr.len) {
4146 count = dump->driver_dump.hdr.len - off;
4147 rc = count;
4148 }
4149
4150 if (count && off < sizeof(dump->driver_dump)) {
4151 if (off + count > sizeof(dump->driver_dump))
4152 len = sizeof(dump->driver_dump) - off;
4153 else
4154 len = count;
4155 src = (u8 *)&dump->driver_dump + off;
4156 memcpy(buf, src, len);
4157 buf += len;
4158 off += len;
4159 count -= len;
4160 }
4161
4162 off -= sizeof(dump->driver_dump);
4163
4d4dd706
KSS		 4164 if (ioa_cfg->sis64)
4165 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4166 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4167 sizeof(struct ipr_sdt_entry));
4168 else
4169 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4170 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4171
4172 if (count && off < sdt_end) {
4173 if (off + count > sdt_end)
4174 len = sdt_end - off;
1da177e4
LT		 4175 else
4176 len = count;
4177 src = (u8 *)&dump->ioa_dump + off;
4178 memcpy(buf, src, len);
4179 buf += len;
4180 off += len;
4181 count -= len;
4182 }
4183
4d4dd706 4184 off -= sdt_end;
1da177e4
LT		 4185
4186 while (count) {
4187 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4188 len = PAGE_ALIGN(off) - off;
4189 else
4190 len = count;
4191 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4192 src += off & ~PAGE_MASK;
4193 memcpy(buf, src, len);
4194 buf += len;
4195 off += len;
4196 count -= len;
4197 }
4198
4199 kref_put(&dump->kref, ipr_release_dump);
4200 return rc;
4201}
4202
4203/**
4204 * ipr_alloc_dump - Prepare for adapter dump
4205 * @ioa_cfg: ioa config struct
4206 *
4207 * Return value:
4208 * 0 on success / other on failure
4209 **/
4210static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4211{
4212 struct ipr_dump *dump;
4d4dd706 4213 __be32 **ioa_data;
1da177e4
LT		 4214 unsigned long lock_flags = 0;
4215
0bc42e35 4216 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4217
4218 if (!dump) {
4219 ipr_err("Dump memory allocation failed\n");
4220 return -ENOMEM;
4221 }
4222
4d4dd706
KSS		 4223 if (ioa_cfg->sis64)
4224 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4225 else
4226 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4227
4228 if (!ioa_data) {
4229 ipr_err("Dump memory allocation failed\n");
4230 kfree(dump);
4231 return -ENOMEM;
4232 }
4233
4234 dump->ioa_dump.ioa_data = ioa_data;
4235
1da177e4
LT		 4236 kref_init(&dump->kref);
4237 dump->ioa_cfg = ioa_cfg;
4238
4239 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4240
4241 if (INACTIVE != ioa_cfg->sdt_state) {
4242 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4243 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4244 kfree(dump);
4245 return 0;
4246 }
4247
4248 ioa_cfg->dump = dump;
4249 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4250 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4251 ioa_cfg->dump_taken = 1;
4252 schedule_work(&ioa_cfg->work_q);
4253 }
4254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4255
1da177e4
LT		 4256 return 0;
4257}
4258
4259/**
4260 * ipr_free_dump - Free adapter dump memory
4261 * @ioa_cfg: ioa config struct
4262 *
4263 * Return value:
4264 * 0 on success / other on failure
4265 **/
4266static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4267{
4268 struct ipr_dump *dump;
4269 unsigned long lock_flags = 0;
4270
4271 ENTER;
4272
4273 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4274 dump = ioa_cfg->dump;
4275 if (!dump) {
4276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4277 return 0;
4278 }
4279
4280 ioa_cfg->dump = NULL;
4281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4282
4283 kref_put(&dump->kref, ipr_release_dump);
4284
4285 LEAVE;
4286 return 0;
4287}
4288
4289/**
4290 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4291 * @filp: open sysfs file
1da177e4 4292 * @kobj: kobject struct
91a69029 4293 * @bin_attr: bin_attribute struct
1da177e4
LT		 4294 * @buf: buffer
4295 * @off: offset
4296 * @count: buffer size
4297 *
4298 * Return value:
4299 * number of bytes printed to buffer
4300 **/
2c3c8bea 4301static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4302 struct bin_attribute *bin_attr,
4303 char *buf, loff_t off, size_t count)
1da177e4 4304{
ee959b00 4305 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4306 struct Scsi_Host *shost = class_to_shost(cdev);
4307 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4308 int rc;
4309
4310 if (!capable(CAP_SYS_ADMIN))
4311 return -EACCES;
4312
4313 if (buf[0] == '1')
4314 rc = ipr_alloc_dump(ioa_cfg);
4315 else if (buf[0] == '0')
4316 rc = ipr_free_dump(ioa_cfg);
4317 else
4318 return -EINVAL;
4319
4320 if (rc)
4321 return rc;
4322 else
4323 return count;
4324}
4325
4326static struct bin_attribute ipr_dump_attr = {
4327 .attr = {
4328 .name = "dump",
4329 .mode = S_IRUSR | S_IWUSR,
4330 },
4331 .size = 0,
4332 .read = ipr_read_dump,
4333 .write = ipr_write_dump
4334};
4335#else
4336static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4337#endif
4338
4339/**
4340 * ipr_change_queue_depth - Change the device's queue depth
4341 * @sdev: scsi device struct
4342 * @qdepth: depth to set
e881a172 4343 * @reason: calling context
1da177e4
LT		 4344 *
4345 * Return value:
4346 * actual depth set
4347 **/
db5ed4df 4348static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 4349{
35a39691
BK		 4350 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4351 struct ipr_resource_entry *res;
4352 unsigned long lock_flags = 0;
4353
4354 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4355 res = (struct ipr_resource_entry *)sdev->hostdata;
4356
4357 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4358 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4359 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4360
db5ed4df 4361 scsi_change_queue_depth(sdev, qdepth);
1da177e4
LT		 4362 return sdev->queue_depth;
4363}
4364
1da177e4
LT		 4365/**
4366 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4367 * @dev: device struct
46d74563 4368 * @attr: device attribute structure
1da177e4
LT		 4369 * @buf: buffer
4370 *
4371 * Return value:
4372 * number of bytes printed to buffer
4373 **/
10523b3b 4374static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4375{
4376 struct scsi_device *sdev = to_scsi_device(dev);
4377 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4378 struct ipr_resource_entry *res;
4379 unsigned long lock_flags = 0;
4380 ssize_t len = -ENXIO;
4381
4382 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4383 res = (struct ipr_resource_entry *)sdev->hostdata;
4384 if (res)
3e7ebdfa 4385 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4386 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4387 return len;
4388}
4389
4390static struct device_attribute ipr_adapter_handle_attr = {
4391 .attr = {
4392 .name = "adapter_handle",
4393 .mode = S_IRUSR,
4394 },
4395 .show = ipr_show_adapter_handle
4396};
4397
3e7ebdfa 4398/**
5adcbeb3
WB		 4399 * ipr_show_resource_path - Show the resource path or the resource address for
4400 * this device.
3e7ebdfa 4401 * @dev: device struct
46d74563 4402 * @attr: device attribute structure
3e7ebdfa
WB		 4403 * @buf: buffer
4404 *
4405 * Return value:
4406 * number of bytes printed to buffer
4407 **/
4408static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4409{
4410 struct scsi_device *sdev = to_scsi_device(dev);
4411 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4412 struct ipr_resource_entry *res;
4413 unsigned long lock_flags = 0;
4414 ssize_t len = -ENXIO;
4415 char buffer[IPR_MAX_RES_PATH_LENGTH];
4416
4417 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4418 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4419 if (res && ioa_cfg->sis64)
3e7ebdfa 4420 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4421 __ipr_format_res_path(res->res_path, buffer,
4422 sizeof(buffer)));
5adcbeb3
WB		 4423 else if (res)
4424 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4425 res->bus, res->target, res->lun);
4426
3e7ebdfa
WB		 4427 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4428 return len;
4429}
4430
4431static struct device_attribute ipr_resource_path_attr = {
4432 .attr = {
4433 .name = "resource_path",
75576bb9 4434 .mode = S_IRUGO,
3e7ebdfa
WB		 4435 },
4436 .show = ipr_show_resource_path
4437};
4438
46d74563
WB		 4439/**
4440 * ipr_show_device_id - Show the device_id for this device.
4441 * @dev: device struct
4442 * @attr: device attribute structure
4443 * @buf: buffer
4444 *
4445 * Return value:
4446 * number of bytes printed to buffer
4447 **/
4448static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4449{
4450 struct scsi_device *sdev = to_scsi_device(dev);
4451 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4452 struct ipr_resource_entry *res;
4453 unsigned long lock_flags = 0;
4454 ssize_t len = -ENXIO;
4455
4456 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4457 res = (struct ipr_resource_entry *)sdev->hostdata;
4458 if (res && ioa_cfg->sis64)
bb8647e8 4459 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
46d74563
WB		 4460 else if (res)
4461 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4462
4463 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4464 return len;
4465}
4466
4467static struct device_attribute ipr_device_id_attr = {
4468 .attr = {
4469 .name = "device_id",
4470 .mode = S_IRUGO,
4471 },
4472 .show = ipr_show_device_id
4473};
4474
75576bb9
WB		 4475/**
4476 * ipr_show_resource_type - Show the resource type for this device.
4477 * @dev: device struct
46d74563 4478 * @attr: device attribute structure
75576bb9
WB		 4479 * @buf: buffer
4480 *
4481 * Return value:
4482 * number of bytes printed to buffer
4483 **/
4484static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4485{
4486 struct scsi_device *sdev = to_scsi_device(dev);
4487 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4488 struct ipr_resource_entry *res;
4489 unsigned long lock_flags = 0;
4490 ssize_t len = -ENXIO;
4491
4492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4493 res = (struct ipr_resource_entry *)sdev->hostdata;
4494
4495 if (res)
4496 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4497
4498 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4499 return len;
4500}
4501
4502static struct device_attribute ipr_resource_type_attr = {
4503 .attr = {
4504 .name = "resource_type",
4505 .mode = S_IRUGO,
4506 },
4507 .show = ipr_show_resource_type
4508};
4509
f8ee25d7
WX		 4510/**
4511 * ipr_show_raw_mode - Show the adapter's raw mode
4512 * @dev: class device struct
4513 * @buf: buffer
4514 *
4515 * Return value:
4516 * number of bytes printed to buffer
4517 **/
4518static ssize_t ipr_show_raw_mode(struct device *dev,
4519 struct device_attribute *attr, char *buf)
4520{
4521 struct scsi_device *sdev = to_scsi_device(dev);
4522 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4523 struct ipr_resource_entry *res;
4524 unsigned long lock_flags = 0;
4525 ssize_t len;
4526
4527 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4528 res = (struct ipr_resource_entry *)sdev->hostdata;
4529 if (res)
4530 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4531 else
4532 len = -ENXIO;
4533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4534 return len;
4535}
4536
4537/**
4538 * ipr_store_raw_mode - Change the adapter's raw mode
4539 * @dev: class device struct
4540 * @buf: buffer
4541 *
4542 * Return value:
4543 * number of bytes printed to buffer
4544 **/
4545static ssize_t ipr_store_raw_mode(struct device *dev,
4546 struct device_attribute *attr,
4547 const char *buf, size_t count)
4548{
4549 struct scsi_device *sdev = to_scsi_device(dev);
4550 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4551 struct ipr_resource_entry *res;
4552 unsigned long lock_flags = 0;
4553 ssize_t len;
4554
4555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4556 res = (struct ipr_resource_entry *)sdev->hostdata;
4557 if (res) {
4558 if (ioa_cfg->sis64 && ipr_is_af_dasd_device(res)) {
4559 res->raw_mode = simple_strtoul(buf, NULL, 10);
4560 len = strlen(buf);
4561 if (res->sdev)
4562 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4563 res->raw_mode ? "enabled" : "disabled");
4564 } else
4565 len = -EINVAL;
4566 } else
4567 len = -ENXIO;
4568 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4569 return len;
4570}
4571
4572static struct device_attribute ipr_raw_mode_attr = {
4573 .attr = {
4574 .name = "raw_mode",
4575 .mode = S_IRUGO | S_IWUSR,
4576 },
4577 .show = ipr_show_raw_mode,
4578 .store = ipr_store_raw_mode
4579};
4580
1da177e4
LT		 4581static struct device_attribute *ipr_dev_attrs[] = {
4582 &ipr_adapter_handle_attr,
3e7ebdfa 4583 &ipr_resource_path_attr,
46d74563 4584 &ipr_device_id_attr,
75576bb9 4585 &ipr_resource_type_attr,
f8ee25d7 4586 &ipr_raw_mode_attr,
1da177e4
LT		 4587 NULL,
4588};
4589
4590/**
4591 * ipr_biosparam - Return the HSC mapping
4592 * @sdev: scsi device struct
4593 * @block_device: block device pointer
4594 * @capacity: capacity of the device
4595 * @parm: Array containing returned HSC values.
4596 *
4597 * This function generates the HSC parms that fdisk uses.
4598 * We want to make sure we return something that places partitions
4599 * on 4k boundaries for best performance with the IOA.
4600 *
4601 * Return value:
4602 * 0 on success
4603 **/
4604static int ipr_biosparam(struct scsi_device *sdev,
4605 struct block_device *block_device,
4606 sector_t capacity, int *parm)
4607{
4608 int heads, sectors;
4609 sector_t cylinders;
4610
4611 heads = 128;
4612 sectors = 32;
4613
4614 cylinders = capacity;
4615 sector_div(cylinders, (128 * 32));
4616
4617 /* return result */
4618 parm[0] = heads;
4619 parm[1] = sectors;
4620 parm[2] = cylinders;
4621
4622 return 0;
4623}
4624
35a39691
BK		 4625/**
4626 * ipr_find_starget - Find target based on bus/target.
4627 * @starget: scsi target struct
4628 *
4629 * Return value:
4630 * resource entry pointer if found / NULL if not found
4631 **/
4632static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4633{
4634 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4635 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4636 struct ipr_resource_entry *res;
4637
4638 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4639 if ((res->bus == starget->channel) &&
0ee1d714 4640 (res->target == starget->id)) {
35a39691
BK		 4641 return res;
4642 }
4643 }
4644
4645 return NULL;
4646}
4647
4648static struct ata_port_info sata_port_info;
4649
4650/**
4651 * ipr_target_alloc - Prepare for commands to a SCSI target
4652 * @starget: scsi target struct
4653 *
4654 * If the device is a SATA device, this function allocates an
4655 * ATA port with libata, else it does nothing.
4656 *
4657 * Return value:
4658 * 0 on success / non-0 on failure
4659 **/
4660static int ipr_target_alloc(struct scsi_target *starget)
4661{
4662 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4663 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4664 struct ipr_sata_port *sata_port;
4665 struct ata_port *ap;
4666 struct ipr_resource_entry *res;
4667 unsigned long lock_flags;
4668
4669 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4670 res = ipr_find_starget(starget);
4671 starget->hostdata = NULL;
4672
4673 if (res && ipr_is_gata(res)) {
4674 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4675 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4676 if (!sata_port)
4677 return -ENOMEM;
4678
4679 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4680 if (ap) {
4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4682 sata_port->ioa_cfg = ioa_cfg;
4683 sata_port->ap = ap;
4684 sata_port->res = res;
4685
4686 res->sata_port = sata_port;
4687 ap->private_data = sata_port;
4688 starget->hostdata = sata_port;
4689 } else {
4690 kfree(sata_port);
4691 return -ENOMEM;
4692 }
4693 }
4694 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4695
4696 return 0;
4697}
4698
4699/**
4700 * ipr_target_destroy - Destroy a SCSI target
4701 * @starget: scsi target struct
4702 *
4703 * If the device was a SATA device, this function frees the libata
4704 * ATA port, else it does nothing.
4705 *
4706 **/
4707static void ipr_target_destroy(struct scsi_target *starget)
4708{
4709 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4710 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4711 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4712
4713 if (ioa_cfg->sis64) {
0ee1d714
BK		 4714 if (!ipr_find_starget(starget)) {
4715 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4716 clear_bit(starget->id, ioa_cfg->array_ids);
4717 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4718 clear_bit(starget->id, ioa_cfg->vset_ids);
4719 else if (starget->channel == 0)
4720 clear_bit(starget->id, ioa_cfg->target_ids);
4721 }
3e7ebdfa 4722 }
35a39691
BK		 4723
4724 if (sata_port) {
4725 starget->hostdata = NULL;
4726 ata_sas_port_destroy(sata_port->ap);
4727 kfree(sata_port);
4728 }
4729}
4730
4731/**
4732 * ipr_find_sdev - Find device based on bus/target/lun.
4733 * @sdev: scsi device struct
4734 *
4735 * Return value:
4736 * resource entry pointer if found / NULL if not found
4737 **/
4738static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4739{
4740 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4741 struct ipr_resource_entry *res;
4742
4743 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4744 if ((res->bus == sdev->channel) &&
4745 (res->target == sdev->id) &&
4746 (res->lun == sdev->lun))
35a39691
BK		 4747 return res;
4748 }
4749
4750 return NULL;
4751}
4752
1da177e4
LT		 4753/**
4754 * ipr_slave_destroy - Unconfigure a SCSI device
4755 * @sdev: scsi device struct
4756 *
4757 * Return value:
4758 * nothing
4759 **/
4760static void ipr_slave_destroy(struct scsi_device *sdev)
4761{
4762 struct ipr_resource_entry *res;
4763 struct ipr_ioa_cfg *ioa_cfg;
4764 unsigned long lock_flags = 0;
4765
4766 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4767
4768 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4769 res = (struct ipr_resource_entry *) sdev->hostdata;
4770 if (res) {
35a39691 4771 if (res->sata_port)
3e4ec344 4772 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4773 sdev->hostdata = NULL;
4774 res->sdev = NULL;
35a39691 4775 res->sata_port = NULL;
1da177e4
LT		 4776 }
4777 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4778}
4779
4780/**
4781 * ipr_slave_configure - Configure a SCSI device
4782 * @sdev: scsi device struct
4783 *
4784 * This function configures the specified scsi device.
4785 *
4786 * Return value:
4787 * 0 on success
4788 **/
4789static int ipr_slave_configure(struct scsi_device *sdev)
4790{
4791 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4792 struct ipr_resource_entry *res;
dd406ef8 4793 struct ata_port *ap = NULL;
1da177e4 4794 unsigned long lock_flags = 0;
3e7ebdfa 4795 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4796
4797 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4798 res = sdev->hostdata;
4799 if (res) {
4800 if (ipr_is_af_dasd_device(res))
4801 sdev->type = TYPE_RAID;
0726ce26 4802 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4803 sdev->scsi_level = 4;
0726ce26 4804 sdev->no_uld_attach = 1;
4805 }
1da177e4 4806 if (ipr_is_vset_device(res)) {
60654e25 4807 sdev->scsi_level = SCSI_SPC_3;
242f9dcb
JA		 4808 blk_queue_rq_timeout(sdev->request_queue,
4809 IPR_VSET_RW_TIMEOUT);
086fa5ff 4810 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4811 }
dd406ef8
BK		 4812 if (ipr_is_gata(res) && res->sata_port)
4813 ap = res->sata_port->ap;
4814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4815
4816 if (ap) {
db5ed4df 4817 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4818 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4819 }
4820
3e7ebdfa
WB		 4821 if (ioa_cfg->sis64)
4822 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4823 ipr_format_res_path(ioa_cfg,
4824 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4825 return 0;
1da177e4
LT		 4826 }
4827 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4828 return 0;
4829}
4830
35a39691
BK		 4831/**
4832 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4833 * @sdev: scsi device struct
4834 *
4835 * This function initializes an ATA port so that future commands
4836 * sent through queuecommand will work.
4837 *
4838 * Return value:
4839 * 0 on success
4840 **/
4841static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4842{
4843 struct ipr_sata_port *sata_port = NULL;
4844 int rc = -ENXIO;
4845
4846 ENTER;
4847 if (sdev->sdev_target)
4848 sata_port = sdev->sdev_target->hostdata;
b2024459 4849 if (sata_port) {
35a39691 4850 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4851 if (rc == 0)
4852 rc = ata_sas_sync_probe(sata_port->ap);
4853 }
4854
35a39691
BK		 4855 if (rc)
4856 ipr_slave_destroy(sdev);
4857
4858 LEAVE;
4859 return rc;
4860}
4861
1da177e4
LT		 4862/**
4863 * ipr_slave_alloc - Prepare for commands to a device.
4864 * @sdev: scsi device struct
4865 *
4866 * This function saves a pointer to the resource entry
4867 * in the scsi device struct if the device exists. We
4868 * can then use this pointer in ipr_queuecommand when
4869 * handling new commands.
4870 *
4871 * Return value:
692aebfc 4872 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4873 **/
4874static int ipr_slave_alloc(struct scsi_device *sdev)
4875{
4876 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4877 struct ipr_resource_entry *res;
4878 unsigned long lock_flags;
692aebfc 4879 int rc = -ENXIO;
1da177e4
LT		 4880
4881 sdev->hostdata = NULL;
4882
4883 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4884
35a39691
BK		 4885 res = ipr_find_sdev(sdev);
4886 if (res) {
4887 res->sdev = sdev;
4888 res->add_to_ml = 0;
4889 res->in_erp = 0;
4890 sdev->hostdata = res;
4891 if (!ipr_is_naca_model(res))
4892 res->needs_sync_complete = 1;
4893 rc = 0;
4894 if (ipr_is_gata(res)) {
4895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4896 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4897 }
4898 }
4899
4900 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4901
692aebfc 4902 return rc;
1da177e4
LT		 4903}
4904
6cdb0817
BK		 4905/**
4906 * ipr_match_lun - Match function for specified LUN
4907 * @ipr_cmd: ipr command struct
4908 * @device: device to match (sdev)
4909 *
4910 * Returns:
4911 * 1 if command matches sdev / 0 if command does not match sdev
4912 **/
4913static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4914{
4915 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4916 return 1;
4917 return 0;
4918}
4919
4920/**
4921 * ipr_wait_for_ops - Wait for matching commands to complete
4922 * @ipr_cmd: ipr command struct
4923 * @device: device to match (sdev)
4924 * @match: match function to use
4925 *
4926 * Returns:
4927 * SUCCESS / FAILED
4928 **/
4929static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4930 int (*match)(struct ipr_cmnd *, void *))
4931{
4932 struct ipr_cmnd *ipr_cmd;
4933 int wait;
4934 unsigned long flags;
4935 struct ipr_hrr_queue *hrrq;
4936 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4937 DECLARE_COMPLETION_ONSTACK(comp);
4938
4939 ENTER;
4940 do {
4941 wait = 0;
4942
4943 for_each_hrrq(hrrq, ioa_cfg) {
4944 spin_lock_irqsave(hrrq->lock, flags);
4945 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4946 if (match(ipr_cmd, device)) {
4947 ipr_cmd->eh_comp = &comp;
4948 wait++;
4949 }
4950 }
4951 spin_unlock_irqrestore(hrrq->lock, flags);
4952 }
4953
4954 if (wait) {
4955 timeout = wait_for_completion_timeout(&comp, timeout);
4956
4957 if (!timeout) {
4958 wait = 0;
4959
4960 for_each_hrrq(hrrq, ioa_cfg) {
4961 spin_lock_irqsave(hrrq->lock, flags);
4962 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4963 if (match(ipr_cmd, device)) {
4964 ipr_cmd->eh_comp = NULL;
4965 wait++;
4966 }
4967 }
4968 spin_unlock_irqrestore(hrrq->lock, flags);
4969 }
4970
4971 if (wait)
4972 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4973 LEAVE;
4974 return wait ? FAILED : SUCCESS;
4975 }
4976 }
4977 } while (wait);
4978
4979 LEAVE;
4980 return SUCCESS;
4981}
4982
70233ac5 4983static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4984{
4985 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4986 unsigned long lock_flags = 0;
4987 int rc = SUCCESS;
1da177e4
LT		 4988
4989 ENTER;
70233ac5 4990 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4991 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4992
96b04db9 4993 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4994 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4995 dev_err(&ioa_cfg->pdev->dev,
4996 "Adapter being reset as a result of error recovery.\n");
1da177e4 4997
a92fa25c
KSS		 4998 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4999 ioa_cfg->sdt_state = GET_DUMP;
5000 }
1da177e4 5001
70233ac5 5002 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5003 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5004 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 5005
70233ac5 5006 /* If we got hit with a host reset while we were already resetting
5007 the adapter for some reason, and the reset failed. */
5008 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5009 ipr_trace;
5010 rc = FAILED;
5011 }
df0ae249 5012
70233ac5 5013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5014 LEAVE;
df0ae249
JG		 5015 return rc;
5016}
5017
c6513096
BK		 5018/**
5019 * ipr_device_reset - Reset the device
5020 * @ioa_cfg: ioa config struct
5021 * @res: resource entry struct
5022 *
5023 * This function issues a device reset to the affected device.
5024 * If the device is a SCSI device, a LUN reset will be sent
5025 * to the device first. If that does not work, a target reset
35a39691
BK		 5026 * will be sent. If the device is a SATA device, a PHY reset will
5027 * be sent.
c6513096
BK		 5028 *
5029 * Return value:
5030 * 0 on success / non-zero on failure
5031 **/
5032static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5033 struct ipr_resource_entry *res)
5034{
5035 struct ipr_cmnd *ipr_cmd;
5036 struct ipr_ioarcb *ioarcb;
5037 struct ipr_cmd_pkt *cmd_pkt;
35a39691 5038 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 5039 u32 ioasc;
5040
5041 ENTER;
5042 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5043 ioarcb = &ipr_cmd->ioarcb;
5044 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 5045
5046 if (ipr_cmd->ioa_cfg->sis64) {
5047 regs = &ipr_cmd->i.ata_ioadl.regs;
5048 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5049 } else
5050 regs = &ioarcb->u.add_data.u.regs;
c6513096 5051
3e7ebdfa 5052 ioarcb->res_handle = res->res_handle;
c6513096
BK		 5053 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5054 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 5055 if (ipr_is_gata(res)) {
5056 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 5057 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 5058 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5059 }
c6513096
BK		 5060
5061 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 5062 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 5063 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 5064 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5065 if (ipr_cmd->ioa_cfg->sis64)
5066 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5067 sizeof(struct ipr_ioasa_gata));
5068 else
5069 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5070 sizeof(struct ipr_ioasa_gata));
5071 }
c6513096
BK		 5072
5073 LEAVE;
203fa3fe 5074 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 5075}
5076
35a39691
BK		 5077/**
5078 * ipr_sata_reset - Reset the SATA port
cc0680a5 5079 * @link: SATA link to reset
35a39691
BK		 5080 * @classes: class of the attached device
5081 *
cc0680a5 5082 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 5083 *
5084 * Return value:
5085 * 0 on success / non-zero on failure
5086 **/
cc0680a5 5087static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 5088 unsigned long deadline)
35a39691 5089{
cc0680a5 5090 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 5091 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5092 struct ipr_resource_entry *res;
5093 unsigned long lock_flags = 0;
5094 int rc = -ENXIO;
5095
5096 ENTER;
5097 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 5098 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 5099 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5100 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5102 }
5103
35a39691
BK		 5104 res = sata_port->res;
5105 if (res) {
5106 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 5107 *classes = res->ata_class;
35a39691
BK		 5108 }
5109
5110 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5111 LEAVE;
5112 return rc;
5113}
5114
1da177e4
LT		 5115/**
5116 * ipr_eh_dev_reset - Reset the device
5117 * @scsi_cmd: scsi command struct
5118 *
5119 * This function issues a device reset to the affected device.
5120 * A LUN reset will be sent to the device first. If that does
5121 * not work, a target reset will be sent.
5122 *
5123 * Return value:
5124 * SUCCESS / FAILED
5125 **/
203fa3fe 5126static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5127{
5128 struct ipr_cmnd *ipr_cmd;
5129 struct ipr_ioa_cfg *ioa_cfg;
5130 struct ipr_resource_entry *res;
35a39691
BK		 5131 struct ata_port *ap;
5132 int rc = 0;
05a6538a 5133 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5134
5135 ENTER;
5136 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5137 res = scsi_cmd->device->hostdata;
5138
eeb88307 5139 if (!res)
1da177e4
LT		 5140 return FAILED;
5141
5142 /*
5143 * If we are currently going through reset/reload, return failed. This will force the
5144 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5145 * reset to complete
5146 */
5147 if (ioa_cfg->in_reset_reload)
5148 return FAILED;
56d6aa33 5149 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5150 return FAILED;
5151
05a6538a 5152 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5153 spin_lock(&hrrq->_lock);
05a6538a 5154 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5155 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5156 if (ipr_cmd->scsi_cmd)
5157 ipr_cmd->done = ipr_scsi_eh_done;
5158 if (ipr_cmd->qc)
5159 ipr_cmd->done = ipr_sata_eh_done;
5160 if (ipr_cmd->qc &&
5161 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5162 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5163 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5164 }
7402ecef 5165 }
1da177e4 5166 }
56d6aa33 5167 spin_unlock(&hrrq->_lock);
1da177e4 5168 }
1da177e4 5169 res->resetting_device = 1;
fb3ed3cb 5170 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5171
5172 if (ipr_is_gata(res) && res->sata_port) {
5173 ap = res->sata_port->ap;
5174 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5175 ata_std_error_handler(ap);
35a39691 5176 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5177
05a6538a 5178 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5179 spin_lock(&hrrq->_lock);
05a6538a 5180 list_for_each_entry(ipr_cmd,
5181 &hrrq->hrrq_pending_q, queue) {
5182 if (ipr_cmd->ioarcb.res_handle ==
5183 res->res_handle) {
5184 rc = -EIO;
5185 break;
5186 }
5af23d26 5187 }
56d6aa33 5188 spin_unlock(&hrrq->_lock);
5af23d26 5189 }
35a39691
BK		 5190 } else
5191 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5192 res->resetting_device = 0;
0b1f8d44 5193 res->reset_occurred = 1;
1da177e4 5194
1da177e4 5195 LEAVE;
203fa3fe 5196 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5197}
5198
203fa3fe 5199static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5200{
5201 int rc;
6cdb0817
BK		 5202 struct ipr_ioa_cfg *ioa_cfg;
5203
5204 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
94d0e7b8
JG		 5205
5206 spin_lock_irq(cmd->device->host->host_lock);
5207 rc = __ipr_eh_dev_reset(cmd);
5208 spin_unlock_irq(cmd->device->host->host_lock);
5209
6cdb0817
BK		 5210 if (rc == SUCCESS)
5211 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5212
94d0e7b8
JG		 5213 return rc;
5214}
5215
1da177e4
LT		 5216/**
5217 * ipr_bus_reset_done - Op done function for bus reset.
5218 * @ipr_cmd: ipr command struct
5219 *
5220 * This function is the op done function for a bus reset
5221 *
5222 * Return value:
5223 * none
5224 **/
5225static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5226{
5227 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5228 struct ipr_resource_entry *res;
5229
5230 ENTER;
3e7ebdfa
WB		 5231 if (!ioa_cfg->sis64)
5232 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5233 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5234 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5235 break;
5236 }
1da177e4 5237 }
1da177e4
LT		 5238
5239 /*
5240 * If abort has not completed, indicate the reset has, else call the
5241 * abort's done function to wake the sleeping eh thread
5242 */
5243 if (ipr_cmd->sibling->sibling)
5244 ipr_cmd->sibling->sibling = NULL;
5245 else
5246 ipr_cmd->sibling->done(ipr_cmd->sibling);
5247
05a6538a 5248 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5249 LEAVE;
5250}
5251
5252/**
5253 * ipr_abort_timeout - An abort task has timed out
5254 * @ipr_cmd: ipr command struct
5255 *
5256 * This function handles when an abort task times out. If this
5257 * happens we issue a bus reset since we have resources tied
5258 * up that must be freed before returning to the midlayer.
5259 *
5260 * Return value:
5261 * none
5262 **/
5263static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5264{
5265 struct ipr_cmnd *reset_cmd;
5266 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5267 struct ipr_cmd_pkt *cmd_pkt;
5268 unsigned long lock_flags = 0;
5269
5270 ENTER;
5271 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5272 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5274 return;
5275 }
5276
fb3ed3cb 5277 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5278 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5279 ipr_cmd->sibling = reset_cmd;
5280 reset_cmd->sibling = ipr_cmd;
5281 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5282 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5283 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5284 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5285 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5286
5287 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5289 LEAVE;
5290}
5291
5292/**
5293 * ipr_cancel_op - Cancel specified op
5294 * @scsi_cmd: scsi command struct
5295 *
5296 * This function cancels specified op.
5297 *
5298 * Return value:
5299 * SUCCESS / FAILED
5300 **/
203fa3fe 5301static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5302{
5303 struct ipr_cmnd *ipr_cmd;
5304 struct ipr_ioa_cfg *ioa_cfg;
5305 struct ipr_resource_entry *res;
5306 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5307 u32 ioasc, int_reg;
1da177e4 5308 int op_found = 0;
05a6538a 5309 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5310
5311 ENTER;
5312 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5313 res = scsi_cmd->device->hostdata;
5314
8fa728a2
JG		 5315 /* If we are currently going through reset/reload, return failed.
5316 * This will force the mid-layer to call ipr_eh_host_reset,
5317 * which will then go to sleep and wait for the reset to complete
5318 */
56d6aa33 5319 if (ioa_cfg->in_reset_reload ||
5320 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5321 return FAILED;
a92fa25c
KSS		 5322 if (!res)
5323 return FAILED;
5324
5325 /*
5326 * If we are aborting a timed out op, chances are that the timeout was caused
5327 * by a still not detected EEH error. In such cases, reading a register will
5328 * trigger the EEH recovery infrastructure.
5329 */
5330 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5331
5332 if (!ipr_is_gscsi(res))
1da177e4
LT		 5333 return FAILED;
5334
05a6538a 5335 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5336 spin_lock(&hrrq->_lock);
05a6538a 5337 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5338 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5339 ipr_cmd->done = ipr_scsi_eh_done;
5340 op_found = 1;
5341 break;
5342 }
1da177e4 5343 }
56d6aa33 5344 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5345 }
5346
5347 if (!op_found)
5348 return SUCCESS;
5349
5350 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5351 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5352 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5353 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5354 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5355 ipr_cmd->u.sdev = scsi_cmd->device;
5356
fb3ed3cb
BK		 5357 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5358 scsi_cmd->cmnd[0]);
1da177e4 5359 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5360 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5361
5362 /*
5363 * If the abort task timed out and we sent a bus reset, we will get
5364 * one the following responses to the abort
5365 */
5366 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5367 ioasc = 0;
5368 ipr_trace;
5369 }
5370
c4ee22a3 5371 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa 5372 if (!ipr_is_naca_model(res))
5373 res->needs_sync_complete = 1;
1da177e4
LT		 5374
5375 LEAVE;
203fa3fe 5376 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5377}
5378
5379/**
5380 * ipr_eh_abort - Abort a single op
5381 * @scsi_cmd: scsi command struct
5382 *
5383 * Return value:
f688f96d
BK		 5384 * 0 if scan in progress / 1 if scan is complete
5385 **/
5386static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5387{
5388 unsigned long lock_flags;
5389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5390 int rc = 0;
5391
5392 spin_lock_irqsave(shost->host_lock, lock_flags);
5393 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5394 rc = 1;
5395 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5396 rc = 1;
5397 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5398 return rc;
5399}
5400
5401/**
5402 * ipr_eh_host_reset - Reset the host adapter
5403 * @scsi_cmd: scsi command struct
5404 *
5405 * Return value:
1da177e4
LT		 5406 * SUCCESS / FAILED
5407 **/
203fa3fe 5408static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5409{
8fa728a2
JG		 5410 unsigned long flags;
5411 int rc;
6cdb0817 5412 struct ipr_ioa_cfg *ioa_cfg;
1da177e4
LT		 5413
5414 ENTER;
1da177e4 5415
6cdb0817
BK		 5416 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5417
8fa728a2
JG		 5418 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5419 rc = ipr_cancel_op(scsi_cmd);
5420 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4 5421
6cdb0817
BK		 5422 if (rc == SUCCESS)
5423 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
1da177e4 5424 LEAVE;
8fa728a2 5425 return rc;
1da177e4
LT		 5426}
5427
5428/**
5429 * ipr_handle_other_interrupt - Handle "other" interrupts
5430 * @ioa_cfg: ioa config struct
634651fa 5431 * @int_reg: interrupt register
1da177e4
LT		 5432 *
5433 * Return value:
5434 * IRQ_NONE / IRQ_HANDLED
5435 **/
634651fa 5436static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5437 u32 int_reg)
1da177e4
LT		 5438{
5439 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5440 u32 int_mask_reg;
56d6aa33 5441
7dacb64f
WB		 5442 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5443 int_reg &= ~int_mask_reg;
5444
5445 /* If an interrupt on the adapter did not occur, ignore it.
5446 * Or in the case of SIS 64, check for a stage change interrupt.
5447 */
5448 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5449 if (ioa_cfg->sis64) {
5450 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5451 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5452 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5453
5454 /* clear stage change */
5455 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5456 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5457 list_del(&ioa_cfg->reset_cmd->queue);
5458 del_timer(&ioa_cfg->reset_cmd->timer);
5459 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5460 return IRQ_HANDLED;
5461 }
5462 }
5463
5464 return IRQ_NONE;
5465 }
1da177e4
LT		 5466
5467 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5468 /* Mask the interrupt */
5469 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 5470 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5471
5472 list_del(&ioa_cfg->reset_cmd->queue);
5473 del_timer(&ioa_cfg->reset_cmd->timer);
5474 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5475 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5476 if (ioa_cfg->clear_isr) {
5477 if (ipr_debug && printk_ratelimit())
5478 dev_err(&ioa_cfg->pdev->dev,
5479 "Spurious interrupt detected. 0x%08X\n", int_reg);
5480 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5481 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5482 return IRQ_NONE;
5483 }
1da177e4
LT		 5484 } else {
5485 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5486 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5487 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5488 dev_err(&ioa_cfg->pdev->dev,
5489 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5490 else
5491 dev_err(&ioa_cfg->pdev->dev,
5492 "Permanent IOA failure. 0x%08X\n", int_reg);
5493
5494 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5495 ioa_cfg->sdt_state = GET_DUMP;
5496
5497 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5498 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5499 }
56d6aa33 5500
1da177e4
LT		 5501 return rc;
5502}
5503
3feeb89d
WB		 5504/**
5505 * ipr_isr_eh - Interrupt service routine error handler
5506 * @ioa_cfg: ioa config struct
5507 * @msg: message to log
5508 *
5509 * Return value:
5510 * none
5511 **/
05a6538a 5512static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5513{
5514 ioa_cfg->errors_logged++;
05a6538a 5515 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5516
5517 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5518 ioa_cfg->sdt_state = GET_DUMP;
5519
5520 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5521}
5522
b53d124a 5523static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5524 struct list_head *doneq)
5525{
5526 u32 ioasc;
5527 u16 cmd_index;
5528 struct ipr_cmnd *ipr_cmd;
5529 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5530 int num_hrrq = 0;
5531
5532 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5533 if (!hrr_queue->allow_interrupts)
05a6538a 5534 return 0;
5535
5536 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5537 hrr_queue->toggle_bit) {
5538
5539 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5540 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5541 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5542
5543 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5544 cmd_index < hrr_queue->min_cmd_id)) {
5545 ipr_isr_eh(ioa_cfg,
5546 "Invalid response handle from IOA: ",
5547 cmd_index);
5548 break;
5549 }
5550
5551 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5552 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5553
5554 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5555
5556 list_move_tail(&ipr_cmd->queue, doneq);
5557
5558 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5559 hrr_queue->hrrq_curr++;
5560 } else {
5561 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5562 hrr_queue->toggle_bit ^= 1u;
5563 }
5564 num_hrrq++;
b53d124a 5565 if (budget > 0 && num_hrrq >= budget)
5566 break;
05a6538a 5567 }
b53d124a 5568
05a6538a 5569 return num_hrrq;
5570}
b53d124a 5571
5572static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5573{
5574 struct ipr_ioa_cfg *ioa_cfg;
5575 struct ipr_hrr_queue *hrrq;
5576 struct ipr_cmnd *ipr_cmd, *temp;
5577 unsigned long hrrq_flags;
5578 int completed_ops;
5579 LIST_HEAD(doneq);
5580
5581 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5582 ioa_cfg = hrrq->ioa_cfg;
5583
5584 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5585 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5586
5587 if (completed_ops < budget)
5588 blk_iopoll_complete(iop);
5589 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5590
5591 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5592 list_del(&ipr_cmd->queue);
5593 del_timer(&ipr_cmd->timer);
5594 ipr_cmd->fast_done(ipr_cmd);
5595 }
5596
5597 return completed_ops;
5598}
5599
1da177e4
LT		 5600/**
5601 * ipr_isr - Interrupt service routine
5602 * @irq: irq number
5603 * @devp: pointer to ioa config struct
1da177e4
LT		 5604 *
5605 * Return value:
5606 * IRQ_NONE / IRQ_HANDLED
5607 **/
7d12e780 5608static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5609{
05a6538a 5610 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5611 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5612 unsigned long hrrq_flags = 0;
7dacb64f 5613 u32 int_reg = 0;
3feeb89d 5614 int num_hrrq = 0;
7dacb64f 5615 int irq_none = 0;
172cd6e1 5616 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5617 irqreturn_t rc = IRQ_NONE;
172cd6e1 5618 LIST_HEAD(doneq);
1da177e4 5619
56d6aa33 5620 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5621 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5622 if (!hrrq->allow_interrupts) {
5623 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5624 return IRQ_NONE;
5625 }
5626
1da177e4 5627 while (1) {
b53d124a 5628 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5629 rc = IRQ_HANDLED;
1da177e4 5630
b53d124a 5631 if (!ioa_cfg->clear_isr)
5632 break;
7dd21308 5633
1da177e4 5634 /* Clear the PCI interrupt */
a5442ba4 5635 num_hrrq = 0;
3feeb89d 5636 do {
b53d124a 5637 writel(IPR_PCII_HRRQ_UPDATED,
5638 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5639 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5640 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5641 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5642
7dacb64f
WB		 5643 } else if (rc == IRQ_NONE && irq_none == 0) {
5644 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5645 irq_none++;
a5442ba4
WB		 5646 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5647 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5648 ipr_isr_eh(ioa_cfg,
5649 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5650 rc = IRQ_HANDLED;
b53d124a 5651 break;
1da177e4
LT		 5652 } else
5653 break;
5654 }
5655
5656 if (unlikely(rc == IRQ_NONE))
634651fa 5657 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5658
56d6aa33 5659 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5660 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5661 list_del(&ipr_cmd->queue);
5662 del_timer(&ipr_cmd->timer);
5663 ipr_cmd->fast_done(ipr_cmd);
5664 }
05a6538a 5665 return rc;
5666}
5667
5668/**
5669 * ipr_isr_mhrrq - Interrupt service routine
5670 * @irq: irq number
5671 * @devp: pointer to ioa config struct
5672 *
5673 * Return value:
5674 * IRQ_NONE / IRQ_HANDLED
5675 **/
5676static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5677{
5678 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5679 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5680 unsigned long hrrq_flags = 0;
05a6538a 5681 struct ipr_cmnd *ipr_cmd, *temp;
5682 irqreturn_t rc = IRQ_NONE;
5683 LIST_HEAD(doneq);
172cd6e1 5684
56d6aa33 5685 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5686
5687 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5688 if (!hrrq->allow_interrupts) {
5689 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5690 return IRQ_NONE;
5691 }
5692
89f8b33c 5693 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5694 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5695 hrrq->toggle_bit) {
5696 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5697 blk_iopoll_sched(&hrrq->iopoll);
5698 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5699 return IRQ_HANDLED;
5700 }
5701 } else {
5702 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5703 hrrq->toggle_bit)
05a6538a 5704
b53d124a 5705 if (ipr_process_hrrq(hrrq, -1, &doneq))
5706 rc = IRQ_HANDLED;
5707 }
05a6538a 5708
56d6aa33 5709 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5710
5711 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5712 list_del(&ipr_cmd->queue);
5713 del_timer(&ipr_cmd->timer);
5714 ipr_cmd->fast_done(ipr_cmd);
5715 }
1da177e4
LT		 5716 return rc;
5717}
5718
a32c055f
WB		 5719/**
5720 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5721 * @ioa_cfg: ioa config struct
5722 * @ipr_cmd: ipr command struct
5723 *
5724 * Return value:
5725 * 0 on success / -1 on failure
5726 **/
5727static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5728 struct ipr_cmnd *ipr_cmd)
5729{
5730 int i, nseg;
5731 struct scatterlist *sg;
5732 u32 length;
5733 u32 ioadl_flags = 0;
5734 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5735 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5736 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5737
5738 length = scsi_bufflen(scsi_cmd);
5739 if (!length)
5740 return 0;
5741
5742 nseg = scsi_dma_map(scsi_cmd);
5743 if (nseg < 0) {
51f52a47 5744 if (printk_ratelimit())
d73341bf 5745 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5746 return -1;
5747 }
5748
5749 ipr_cmd->dma_use_sg = nseg;
5750
438b0331 5751 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5752 ioarcb->ioadl_len =
5753 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5754
a32c055f
WB		 5755 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5756 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5757 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5758 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5759 ioadl_flags = IPR_IOADL_FLAGS_READ;
5760
5761 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5762 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5763 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5764 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5765 }
5766
5767 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5768 return 0;
5769}
5770
1da177e4
LT		 5771/**
5772 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5773 * @ioa_cfg: ioa config struct
5774 * @ipr_cmd: ipr command struct
5775 *
5776 * Return value:
5777 * 0 on success / -1 on failure
5778 **/
5779static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5780 struct ipr_cmnd *ipr_cmd)
5781{
63015bc9
FT		 5782 int i, nseg;
5783 struct scatterlist *sg;
1da177e4
LT		 5784 u32 length;
5785 u32 ioadl_flags = 0;
5786 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5787 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5788 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5789
63015bc9
FT		 5790 length = scsi_bufflen(scsi_cmd);
5791 if (!length)
1da177e4
LT		 5792 return 0;
5793
63015bc9
FT		 5794 nseg = scsi_dma_map(scsi_cmd);
5795 if (nseg < 0) {
d73341bf 5796 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5797 return -1;
5798 }
51b1c7e1 5799
63015bc9
FT		 5800 ipr_cmd->dma_use_sg = nseg;
5801
5802 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5803 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5804 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5805 ioarcb->data_transfer_length = cpu_to_be32(length);
5806 ioarcb->ioadl_len =
63015bc9
FT		 5807 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5808 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5809 ioadl_flags = IPR_IOADL_FLAGS_READ;
5810 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5811 ioarcb->read_ioadl_len =
5812 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5813 }
1da177e4 5814
a32c055f
WB		 5815 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5816 ioadl = ioarcb->u.add_data.u.ioadl;
5817 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5818 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5819 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5820 }
1da177e4 5821
63015bc9
FT		 5822 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5823 ioadl[i].flags_and_data_len =
5824 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5825 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5826 }
5827
63015bc9
FT		 5828 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5829 return 0;
1da177e4
LT		 5830}
5831
1da177e4
LT		 5832/**
5833 * ipr_erp_done - Process completion of ERP for a device
5834 * @ipr_cmd: ipr command struct
5835 *
5836 * This function copies the sense buffer into the scsi_cmd
5837 * struct and pushes the scsi_done function.
5838 *
5839 * Return value:
5840 * nothing
5841 **/
5842static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5843{
5844 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5845 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5846 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5847
5848 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5849 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5850 scmd_printk(KERN_ERR, scsi_cmd,
5851 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5852 } else {
5853 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5854 SCSI_SENSE_BUFFERSIZE);
5855 }
5856
5857 if (res) {
ee0a90fa 5858 if (!ipr_is_naca_model(res))
5859 res->needs_sync_complete = 1;
1da177e4
LT		 5860 res->in_erp = 0;
5861 }
63015bc9 5862 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5863 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5864 scsi_cmd->scsi_done(scsi_cmd);
5865}
5866
5867/**
5868 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5869 * @ipr_cmd: ipr command struct
5870 *
5871 * Return value:
5872 * none
5873 **/
5874static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5875{
51b1c7e1 5876 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5877 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5878 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5879
5880 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5881 ioarcb->data_transfer_length = 0;
1da177e4 5882 ioarcb->read_data_transfer_length = 0;
a32c055f 5883 ioarcb->ioadl_len = 0;
1da177e4 5884 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5885 ioasa->hdr.ioasc = 0;
5886 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5887
5888 if (ipr_cmd->ioa_cfg->sis64)
5889 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5890 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5891 else {
5892 ioarcb->write_ioadl_addr =
5893 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5894 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5895 }
1da177e4
LT		 5896}
5897
5898/**
5899 * ipr_erp_request_sense - Send request sense to a device
5900 * @ipr_cmd: ipr command struct
5901 *
5902 * This function sends a request sense to a device as a result
5903 * of a check condition.
5904 *
5905 * Return value:
5906 * nothing
5907 **/
5908static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5909{
5910 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5911 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5912
5913 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5914 ipr_erp_done(ipr_cmd);
5915 return;
5916 }
5917
5918 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5919
5920 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5921 cmd_pkt->cdb[0] = REQUEST_SENSE;
5922 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5923 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5924 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5925 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5926
a32c055f
WB		 5927 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5928 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5929
5930 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5931 IPR_REQUEST_SENSE_TIMEOUT * 2);
5932}
5933
5934/**
5935 * ipr_erp_cancel_all - Send cancel all to a device
5936 * @ipr_cmd: ipr command struct
5937 *
5938 * This function sends a cancel all to a device to clear the
5939 * queue. If we are running TCQ on the device, QERR is set to 1,
5940 * which means all outstanding ops have been dropped on the floor.
5941 * Cancel all will return them to us.
5942 *
5943 * Return value:
5944 * nothing
5945 **/
5946static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5947{
5948 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5949 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5950 struct ipr_cmd_pkt *cmd_pkt;
5951
5952 res->in_erp = 1;
5953
5954 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5955
17ea0126 5956 if (!scsi_cmd->device->simple_tags) {
1da177e4
LT		 5957 ipr_erp_request_sense(ipr_cmd);
5958 return;
5959 }
5960
5961 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5962 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5963 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5964
5965 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5966 IPR_CANCEL_ALL_TIMEOUT);
5967}
5968
5969/**
5970 * ipr_dump_ioasa - Dump contents of IOASA
5971 * @ioa_cfg: ioa config struct
5972 * @ipr_cmd: ipr command struct
fe964d0a 5973 * @res: resource entry struct
1da177e4
LT		 5974 *
5975 * This function is invoked by the interrupt handler when ops
5976 * fail. It will log the IOASA if appropriate. Only called
5977 * for GPDD ops.
5978 *
5979 * Return value:
5980 * none
5981 **/
5982static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5983 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5984{
5985 int i;
5986 u16 data_len;
b0692dd4 5987 u32 ioasc, fd_ioasc;
96d21f00 5988 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5989 __be32 *ioasa_data = (__be32 *)ioasa;
5990 int error_index;
5991
96d21f00
WB		 5992 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5993 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5994
5995 if (0 == ioasc)
5996 return;
5997
5998 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5999 return;
6000
b0692dd4
BK		 6001 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6002 error_index = ipr_get_error(fd_ioasc);
6003 else
6004 error_index = ipr_get_error(ioasc);
1da177e4
LT		 6005
6006 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6007 /* Don't log an error if the IOA already logged one */
96d21f00 6008 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 6009 return;
6010
cc9bd5d4
BK		 6011 if (!ipr_is_gscsi(res))
6012 return;
6013
1da177e4
LT		 6014 if (ipr_error_table[error_index].log_ioasa == 0)
6015 return;
6016 }
6017
fe964d0a 6018 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 6019
96d21f00
WB		 6020 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6021 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6022 data_len = sizeof(struct ipr_ioasa64);
6023 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 6024 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 6025
6026 ipr_err("IOASA Dump:\n");
6027
6028 for (i = 0; i < data_len / 4; i += 4) {
6029 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6030 be32_to_cpu(ioasa_data[i]),
6031 be32_to_cpu(ioasa_data[i+1]),
6032 be32_to_cpu(ioasa_data[i+2]),
6033 be32_to_cpu(ioasa_data[i+3]));
6034 }
6035}
6036
6037/**
6038 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6039 * @ioasa: IOASA
6040 * @sense_buf: sense data buffer
6041 *
6042 * Return value:
6043 * none
6044 **/
6045static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6046{
6047 u32 failing_lba;
6048 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6049 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 6050 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6051 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 6052
6053 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6054
6055 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6056 return;
6057
6058 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6059
6060 if (ipr_is_vset_device(res) &&
6061 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6062 ioasa->u.vset.failing_lba_hi != 0) {
6063 sense_buf[0] = 0x72;
6064 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6065 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6066 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6067
6068 sense_buf[7] = 12;
6069 sense_buf[8] = 0;
6070 sense_buf[9] = 0x0A;
6071 sense_buf[10] = 0x80;
6072
6073 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6074
6075 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6076 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6077 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6078 sense_buf[15] = failing_lba & 0x000000ff;
6079
6080 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6081
6082 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6083 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6084 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6085 sense_buf[19] = failing_lba & 0x000000ff;
6086 } else {
6087 sense_buf[0] = 0x70;
6088 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6089 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6090 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6091
6092 /* Illegal request */
6093 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 6094 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 6095 sense_buf[7] = 10; /* additional length */
6096
6097 /* IOARCB was in error */
6098 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6099 sense_buf[15] = 0xC0;
6100 else /* Parameter data was invalid */
6101 sense_buf[15] = 0x80;
6102
6103 sense_buf[16] =
6104 ((IPR_FIELD_POINTER_MASK &
96d21f00 6105 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 6106 sense_buf[17] =
6107 (IPR_FIELD_POINTER_MASK &
96d21f00 6108 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 6109 } else {
6110 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6111 if (ipr_is_vset_device(res))
6112 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6113 else
6114 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6115
6116 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6117 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6118 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6119 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6120 sense_buf[6] = failing_lba & 0x000000ff;
6121 }
6122
6123 sense_buf[7] = 6; /* additional length */
6124 }
6125 }
6126}
6127
ee0a90fa 6128/**
6129 * ipr_get_autosense - Copy autosense data to sense buffer
6130 * @ipr_cmd: ipr command struct
6131 *
6132 * This function copies the autosense buffer to the buffer
6133 * in the scsi_cmd, if there is autosense available.
6134 *
6135 * Return value:
6136 * 1 if autosense was available / 0 if not
6137 **/
6138static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6139{
96d21f00
WB		 6140 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6141 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 6142
96d21f00 6143 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa 6144 return 0;
6145
96d21f00
WB		 6146 if (ipr_cmd->ioa_cfg->sis64)
6147 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6148 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6149 SCSI_SENSE_BUFFERSIZE));
6150 else
6151 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6152 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6153 SCSI_SENSE_BUFFERSIZE));
ee0a90fa 6154 return 1;
6155}
6156
1da177e4
LT		 6157/**
6158 * ipr_erp_start - Process an error response for a SCSI op
6159 * @ioa_cfg: ioa config struct
6160 * @ipr_cmd: ipr command struct
6161 *
6162 * This function determines whether or not to initiate ERP
6163 * on the affected device.
6164 *
6165 * Return value:
6166 * nothing
6167 **/
6168static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6169 struct ipr_cmnd *ipr_cmd)
6170{
6171 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6172 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6173 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6174 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6175
6176 if (!res) {
6177 ipr_scsi_eh_done(ipr_cmd);
6178 return;
6179 }
6180
8a048994 6181 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6182 ipr_gen_sense(ipr_cmd);
6183
cc9bd5d4
BK		 6184 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6185
8a048994 6186 switch (masked_ioasc) {
1da177e4 6187 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa 6188 if (ipr_is_naca_model(res))
6189 scsi_cmd->result |= (DID_ABORT << 16);
6190 else
6191 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6192 break;
6193 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6194 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6195 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6196 break;
6197 case IPR_IOASC_HW_SEL_TIMEOUT:
6198 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa 6199 if (!ipr_is_naca_model(res))
6200 res->needs_sync_complete = 1;
1da177e4
LT		 6201 break;
6202 case IPR_IOASC_SYNC_REQUIRED:
6203 if (!res->in_erp)
6204 res->needs_sync_complete = 1;
6205 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6206 break;
6207 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6208 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6209 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6210 break;
6211 case IPR_IOASC_BUS_WAS_RESET:
6212 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6213 /*
6214 * Report the bus reset and ask for a retry. The device
6215 * will give CC/UA the next command.
6216 */
6217 if (!res->resetting_device)
6218 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6219 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6220 if (!ipr_is_naca_model(res))
6221 res->needs_sync_complete = 1;
1da177e4
LT		 6222 break;
6223 case IPR_IOASC_HW_DEV_BUS_STATUS:
6224 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6225 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa 6226 if (!ipr_get_autosense(ipr_cmd)) {
6227 if (!ipr_is_naca_model(res)) {
6228 ipr_erp_cancel_all(ipr_cmd);
6229 return;
6230 }
6231 }
1da177e4 6232 }
ee0a90fa 6233 if (!ipr_is_naca_model(res))
6234 res->needs_sync_complete = 1;
1da177e4
LT		 6235 break;
6236 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6237 break;
f8ee25d7
WX		 6238 case IPR_IOASC_IR_NON_OPTIMIZED:
6239 if (res->raw_mode) {
6240 res->raw_mode = 0;
6241 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6242 } else
6243 scsi_cmd->result |= (DID_ERROR << 16);
6244 break;
1da177e4 6245 default:
5b7304fb
BK		 6246 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6247 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6248 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6249 res->needs_sync_complete = 1;
6250 break;
6251 }
6252
63015bc9 6253 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6254 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6255 scsi_cmd->scsi_done(scsi_cmd);
6256}
6257
6258/**
6259 * ipr_scsi_done - mid-layer done function
6260 * @ipr_cmd: ipr command struct
6261 *
6262 * This function is invoked by the interrupt handler for
6263 * ops generated by the SCSI mid-layer
6264 *
6265 * Return value:
6266 * none
6267 **/
6268static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6269{
6270 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6271 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6272 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
36b8e180 6273 unsigned long lock_flags;
1da177e4 6274
96d21f00 6275 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6276
6277 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6278 scsi_dma_unmap(scsi_cmd);
6279
36b8e180 6280 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
05a6538a 6281 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6282 scsi_cmd->scsi_done(scsi_cmd);
36b8e180 6283 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
172cd6e1 6284 } else {
36b8e180
BK		 6285 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6286 spin_lock(&ipr_cmd->hrrq->_lock);
1da177e4 6287 ipr_erp_start(ioa_cfg, ipr_cmd);
36b8e180
BK		 6288 spin_unlock(&ipr_cmd->hrrq->_lock);
6289 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
172cd6e1 6290 }
1da177e4
LT		 6291}
6292
1da177e4
LT		 6293/**
6294 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6295 * @shost: scsi host struct
1da177e4 6296 * @scsi_cmd: scsi command struct
1da177e4
LT		 6297 *
6298 * This function queues a request generated by the mid-layer.
6299 *
6300 * Return value:
6301 * 0 on success
6302 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6303 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6304 **/
00bfef2c
BK		 6305static int ipr_queuecommand(struct Scsi_Host *shost,
6306 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6307{
6308 struct ipr_ioa_cfg *ioa_cfg;
6309 struct ipr_resource_entry *res;
6310 struct ipr_ioarcb *ioarcb;
6311 struct ipr_cmnd *ipr_cmd;
56d6aa33 6312 unsigned long hrrq_flags, lock_flags;
d12f1576 6313 int rc;
05a6538a 6314 struct ipr_hrr_queue *hrrq;
6315 int hrrq_id;
1da177e4 6316
00bfef2c
BK		 6317 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6318
1da177e4 6319 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6320 res = scsi_cmd->device->hostdata;
56d6aa33 6321
6322 if (ipr_is_gata(res) && res->sata_port) {
6323 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6324 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6325 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6326 return rc;
6327 }
6328
05a6538a 6329 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6330 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6331
56d6aa33 6332 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6333 /*
6334 * We are currently blocking all devices due to a host reset
6335 * We have told the host to stop giving us new requests, but
6336 * ERP ops don't count. FIXME
6337 */
bfae7820 6338 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6339 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6340 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6341 }
1da177e4
LT		 6342
6343 /*
6344 * FIXME - Create scsi_set_host_offline interface
6345 * and the ioa_is_dead check can be removed
6346 */
bfae7820 6347 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6348 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6349 goto err_nodev;
1da177e4
LT		 6350 }
6351
05a6538a 6352 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6353 if (ipr_cmd == NULL) {
56d6aa33 6354 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6355 return SCSI_MLQUEUE_HOST_BUSY;
6356 }
56d6aa33 6357 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6358
172cd6e1 6359 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6360 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6361
6362 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6363 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6364 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4
LT		 6365
6366 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6367 if (scsi_cmd->underflow == 0)
6368 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6369
1da177e4 6370 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
0b1f8d44
WX		 6371 if (ipr_is_gscsi(res) && res->reset_occurred) {
6372 res->reset_occurred = 0;
ab6c10b1 6373 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6374 }
1da177e4 6375 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6376 if (scsi_cmd->flags & SCMD_TAGGED)
6377 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6378 else
6379 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6380 }
6381
6382 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6383 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6384 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6385 }
f8ee25d7
WX		 6386 if (res->raw_mode && ipr_is_af_dasd_device(res))
6387 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
1da177e4 6388
d12f1576
DC		 6389 if (ioa_cfg->sis64)
6390 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6391 else
6392 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6393
56d6aa33 6394 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6395 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6396 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6397 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6398 if (!rc)
6399 scsi_dma_unmap(scsi_cmd);
a5fb407e 6400 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6401 }
6402
56d6aa33 6403 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6404 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6405 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6406 scsi_dma_unmap(scsi_cmd);
6407 goto err_nodev;
6408 }
6409
6410 ioarcb->res_handle = res->res_handle;
6411 if (res->needs_sync_complete) {
6412 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6413 res->needs_sync_complete = 0;
6414 }
05a6538a 6415 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6416 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6417 ipr_send_command(ipr_cmd);
56d6aa33 6418 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6419 return 0;
1da177e4 6420
00bfef2c 6421err_nodev:
56d6aa33 6422 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6423 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6424 scsi_cmd->result = (DID_NO_CONNECT << 16);
6425 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6426 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6427 return 0;
6428}
f281233d 6429
35a39691
BK		 6430/**
6431 * ipr_ioctl - IOCTL handler
6432 * @sdev: scsi device struct
6433 * @cmd: IOCTL cmd
6434 * @arg: IOCTL arg
6435 *
6436 * Return value:
6437 * 0 on success / other on failure
6438 **/
bd705f2d 6439static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6440{
6441 struct ipr_resource_entry *res;
6442
6443 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6444 if (res && ipr_is_gata(res)) {
6445 if (cmd == HDIO_GET_IDENTITY)
6446 return -ENOTTY;
94be9a58 6447 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6448 }
35a39691
BK		 6449
6450 return -EINVAL;
6451}
6452
1da177e4
LT		 6453/**
6454 * ipr_info - Get information about the card/driver
6455 * @scsi_host: scsi host struct
6456 *
6457 * Return value:
6458 * pointer to buffer with description string
6459 **/
203fa3fe 6460static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6461{
6462 static char buffer[512];
6463 struct ipr_ioa_cfg *ioa_cfg;
6464 unsigned long lock_flags = 0;
6465
6466 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6467
6468 spin_lock_irqsave(host->host_lock, lock_flags);
6469 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6470 spin_unlock_irqrestore(host->host_lock, lock_flags);
6471
6472 return buffer;
6473}
6474
6475static struct scsi_host_template driver_template = {
6476 .module = THIS_MODULE,
6477 .name = "IPR",
6478 .info = ipr_ioa_info,
35a39691 6479 .ioctl = ipr_ioctl,
1da177e4
LT		 6480 .queuecommand = ipr_queuecommand,
6481 .eh_abort_handler = ipr_eh_abort,
6482 .eh_device_reset_handler = ipr_eh_dev_reset,
6483 .eh_host_reset_handler = ipr_eh_host_reset,
6484 .slave_alloc = ipr_slave_alloc,
6485 .slave_configure = ipr_slave_configure,
6486 .slave_destroy = ipr_slave_destroy,
f688f96d 6487 .scan_finished = ipr_scan_finished,
35a39691
BK		 6488 .target_alloc = ipr_target_alloc,
6489 .target_destroy = ipr_target_destroy,
1da177e4 6490 .change_queue_depth = ipr_change_queue_depth,
1da177e4
LT		 6491 .bios_param = ipr_biosparam,
6492 .can_queue = IPR_MAX_COMMANDS,
6493 .this_id = -1,
6494 .sg_tablesize = IPR_MAX_SGLIST,
6495 .max_sectors = IPR_IOA_MAX_SECTORS,
6496 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6497 .use_clustering = ENABLE_CLUSTERING,
6498 .shost_attrs = ipr_ioa_attrs,
6499 .sdev_attrs = ipr_dev_attrs,
54b2b50c 6500 .proc_name = IPR_NAME,
2ecb204d 6501 .use_blk_tags = 1,
1da177e4
LT		 6502};
6503
35a39691
BK		 6504/**
6505 * ipr_ata_phy_reset - libata phy_reset handler
6506 * @ap: ata port to reset
6507 *
6508 **/
6509static void ipr_ata_phy_reset(struct ata_port *ap)
6510{
6511 unsigned long flags;
6512 struct ipr_sata_port *sata_port = ap->private_data;
6513 struct ipr_resource_entry *res = sata_port->res;
6514 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6515 int rc;
6516
6517 ENTER;
6518 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6519 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6520 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6521 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6522 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6523 }
6524
56d6aa33 6525 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6526 goto out_unlock;
6527
6528 rc = ipr_device_reset(ioa_cfg, res);
6529
6530 if (rc) {
3e4ec344 6531 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6532 goto out_unlock;
6533 }
6534
3e7ebdfa
WB		 6535 ap->link.device[0].class = res->ata_class;
6536 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6537 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6538
6539out_unlock:
6540 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6541 LEAVE;
6542}
6543
6544/**
6545 * ipr_ata_post_internal - Cleanup after an internal command
6546 * @qc: ATA queued command
6547 *
6548 * Return value:
6549 * none
6550 **/
6551static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6552{
6553 struct ipr_sata_port *sata_port = qc->ap->private_data;
6554 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6555 struct ipr_cmnd *ipr_cmd;
05a6538a 6556 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6557 unsigned long flags;
6558
6559 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6560 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6561 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6562 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6563 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6564 }
6565
05a6538a 6566 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6567 spin_lock(&hrrq->_lock);
05a6538a 6568 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6569 if (ipr_cmd->qc == qc) {
6570 ipr_device_reset(ioa_cfg, sata_port->res);
6571 break;
6572 }
35a39691 6573 }
56d6aa33 6574 spin_unlock(&hrrq->_lock);
35a39691
BK		 6575 }
6576 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6577}
6578
35a39691
BK		 6579/**
6580 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6581 * @regs: destination
6582 * @tf: source ATA taskfile
6583 *
6584 * Return value:
6585 * none
6586 **/
6587static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6588 struct ata_taskfile *tf)
6589{
6590 regs->feature = tf->feature;
6591 regs->nsect = tf->nsect;
6592 regs->lbal = tf->lbal;
6593 regs->lbam = tf->lbam;
6594 regs->lbah = tf->lbah;
6595 regs->device = tf->device;
6596 regs->command = tf->command;
6597 regs->hob_feature = tf->hob_feature;
6598 regs->hob_nsect = tf->hob_nsect;
6599 regs->hob_lbal = tf->hob_lbal;
6600 regs->hob_lbam = tf->hob_lbam;
6601 regs->hob_lbah = tf->hob_lbah;
6602 regs->ctl = tf->ctl;
6603}
6604
6605/**
6606 * ipr_sata_done - done function for SATA commands
6607 * @ipr_cmd: ipr command struct
6608 *
6609 * This function is invoked by the interrupt handler for
6610 * ops generated by the SCSI mid-layer to SATA devices
6611 *
6612 * Return value:
6613 * none
6614 **/
6615static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6616{
6617 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6618 struct ata_queued_cmd *qc = ipr_cmd->qc;
6619 struct ipr_sata_port *sata_port = qc->ap->private_data;
6620 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6621 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6622
56d6aa33 6623 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6624 if (ipr_cmd->ioa_cfg->sis64)
6625 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6626 sizeof(struct ipr_ioasa_gata));
6627 else
6628 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6629 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6630 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6631
96d21f00 6632 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6633 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6634
6635 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6636 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6637 else
96d21f00 6638 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6639 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6640 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6641 ata_qc_complete(qc);
6642}
6643
a32c055f
WB		 6644/**
6645 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6646 * @ipr_cmd: ipr command struct
6647 * @qc: ATA queued command
6648 *
6649 **/
6650static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6651 struct ata_queued_cmd *qc)
6652{
6653 u32 ioadl_flags = 0;
6654 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6655 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6656 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6657 int len = qc->nbytes;
6658 struct scatterlist *sg;
6659 unsigned int si;
6660 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6661
6662 if (len == 0)
6663 return;
6664
6665 if (qc->dma_dir == DMA_TO_DEVICE) {
6666 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6667 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6668 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6669 ioadl_flags = IPR_IOADL_FLAGS_READ;
6670
6671 ioarcb->data_transfer_length = cpu_to_be32(len);
6672 ioarcb->ioadl_len =
6673 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6674 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6675 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6676
6677 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6678 ioadl64->flags = cpu_to_be32(ioadl_flags);
6679 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6680 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6681
6682 last_ioadl64 = ioadl64;
6683 ioadl64++;
6684 }
6685
6686 if (likely(last_ioadl64))
6687 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6688}
6689
35a39691
BK		 6690/**
6691 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6692 * @ipr_cmd: ipr command struct
6693 * @qc: ATA queued command
6694 *
6695 **/
6696static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6697 struct ata_queued_cmd *qc)
6698{
6699 u32 ioadl_flags = 0;
6700 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6701 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6702 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6703 int len = qc->nbytes;
35a39691 6704 struct scatterlist *sg;
ff2aeb1e 6705 unsigned int si;
35a39691
BK		 6706
6707 if (len == 0)
6708 return;
6709
6710 if (qc->dma_dir == DMA_TO_DEVICE) {
6711 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6712 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6713 ioarcb->data_transfer_length = cpu_to_be32(len);
6714 ioarcb->ioadl_len =
35a39691
BK		 6715 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6716 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6717 ioadl_flags = IPR_IOADL_FLAGS_READ;
6718 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6719 ioarcb->read_ioadl_len =
6720 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6721 }
6722
ff2aeb1e 6723 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6724 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6725 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6726
6727 last_ioadl = ioadl;
6728 ioadl++;
35a39691 6729 }
3be6cbd7
JG		 6730
6731 if (likely(last_ioadl))
6732 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6733}
6734
56d6aa33 6735/**
6736 * ipr_qc_defer - Get a free ipr_cmd
6737 * @qc: queued command
6738 *
6739 * Return value:
6740 * 0 if success
6741 **/
6742static int ipr_qc_defer(struct ata_queued_cmd *qc)
6743{
6744 struct ata_port *ap = qc->ap;
6745 struct ipr_sata_port *sata_port = ap->private_data;
6746 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6747 struct ipr_cmnd *ipr_cmd;
6748 struct ipr_hrr_queue *hrrq;
6749 int hrrq_id;
6750
6751 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6752 hrrq = &ioa_cfg->hrrq[hrrq_id];
6753
6754 qc->lldd_task = NULL;
6755 spin_lock(&hrrq->_lock);
6756 if (unlikely(hrrq->ioa_is_dead)) {
6757 spin_unlock(&hrrq->_lock);
6758 return 0;
6759 }
6760
6761 if (unlikely(!hrrq->allow_cmds)) {
6762 spin_unlock(&hrrq->_lock);
6763 return ATA_DEFER_LINK;
6764 }
6765
6766 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6767 if (ipr_cmd == NULL) {
6768 spin_unlock(&hrrq->_lock);
6769 return ATA_DEFER_LINK;
6770 }
6771
6772 qc->lldd_task = ipr_cmd;
6773 spin_unlock(&hrrq->_lock);
6774 return 0;
6775}
6776
35a39691
BK		 6777/**
6778 * ipr_qc_issue - Issue a SATA qc to a device
6779 * @qc: queued command
6780 *
6781 * Return value:
6782 * 0 if success
6783 **/
6784static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6785{
6786 struct ata_port *ap = qc->ap;
6787 struct ipr_sata_port *sata_port = ap->private_data;
6788 struct ipr_resource_entry *res = sata_port->res;
6789 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6790 struct ipr_cmnd *ipr_cmd;
6791 struct ipr_ioarcb *ioarcb;
6792 struct ipr_ioarcb_ata_regs *regs;
6793
56d6aa33 6794 if (qc->lldd_task == NULL)
6795 ipr_qc_defer(qc);
6796
6797 ipr_cmd = qc->lldd_task;
6798 if (ipr_cmd == NULL)
0feeed82 6799 return AC_ERR_SYSTEM;
35a39691 6800
56d6aa33 6801 qc->lldd_task = NULL;
6802 spin_lock(&ipr_cmd->hrrq->_lock);
6803 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6804 ipr_cmd->hrrq->ioa_is_dead)) {
6805 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6806 spin_unlock(&ipr_cmd->hrrq->_lock);
6807 return AC_ERR_SYSTEM;
6808 }
6809
05a6538a 6810 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6811 ioarcb = &ipr_cmd->ioarcb;
35a39691 6812
a32c055f
WB		 6813 if (ioa_cfg->sis64) {
6814 regs = &ipr_cmd->i.ata_ioadl.regs;
6815 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6816 } else
6817 regs = &ioarcb->u.add_data.u.regs;
6818
6819 memset(regs, 0, sizeof(*regs));
6820 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6821
56d6aa33 6822 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6823 ipr_cmd->qc = qc;
6824 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6825 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6826 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6827 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6828 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6829 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6830
a32c055f
WB		 6831 if (ioa_cfg->sis64)
6832 ipr_build_ata_ioadl64(ipr_cmd, qc);
6833 else
6834 ipr_build_ata_ioadl(ipr_cmd, qc);
6835
35a39691
BK		 6836 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6837 ipr_copy_sata_tf(regs, &qc->tf);
6838 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6839 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6840
6841 switch (qc->tf.protocol) {
6842 case ATA_PROT_NODATA:
6843 case ATA_PROT_PIO:
6844 break;
6845
6846 case ATA_PROT_DMA:
6847 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6848 break;
6849
0dc36888
TH		 6850 case ATAPI_PROT_PIO:
6851 case ATAPI_PROT_NODATA:
35a39691
BK		 6852 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6853 break;
6854
0dc36888 6855 case ATAPI_PROT_DMA:
35a39691
BK		 6856 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6857 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6858 break;
6859
6860 default:
6861 WARN_ON(1);
56d6aa33 6862 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6863 return AC_ERR_INVALID;
35a39691
BK		 6864 }
6865
a32c055f 6866 ipr_send_command(ipr_cmd);
56d6aa33 6867 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6868
35a39691
BK		 6869 return 0;
6870}
6871
4c9bf4e7
TH		 6872/**
6873 * ipr_qc_fill_rtf - Read result TF
6874 * @qc: ATA queued command
6875 *
6876 * Return value:
6877 * true
6878 **/
6879static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6880{
6881 struct ipr_sata_port *sata_port = qc->ap->private_data;
6882 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6883 struct ata_taskfile *tf = &qc->result_tf;
6884
6885 tf->feature = g->error;
6886 tf->nsect = g->nsect;
6887 tf->lbal = g->lbal;
6888 tf->lbam = g->lbam;
6889 tf->lbah = g->lbah;
6890 tf->device = g->device;
6891 tf->command = g->status;
6892 tf->hob_nsect = g->hob_nsect;
6893 tf->hob_lbal = g->hob_lbal;
6894 tf->hob_lbam = g->hob_lbam;
6895 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6896
6897 return true;
6898}
6899
35a39691 6900static struct ata_port_operations ipr_sata_ops = {
35a39691 6901 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6902 .hardreset = ipr_sata_reset,
35a39691 6903 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6904 .qc_prep = ata_noop_qc_prep,
56d6aa33 6905 .qc_defer = ipr_qc_defer,
35a39691 6906 .qc_issue = ipr_qc_issue,
4c9bf4e7 6907 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6908 .port_start = ata_sas_port_start,
6909 .port_stop = ata_sas_port_stop
6910};
6911
6912static struct ata_port_info sata_port_info = {
5067c046
SL		 6913 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6914 ATA_FLAG_SAS_HOST,
0f2e0330
SS		 6915 .pio_mask = ATA_PIO4_ONLY,
6916 .mwdma_mask = ATA_MWDMA2,
6917 .udma_mask = ATA_UDMA6,
35a39691
BK		 6918 .port_ops = &ipr_sata_ops
6919};
6920
1da177e4
LT		 6921#ifdef CONFIG_PPC_PSERIES
6922static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6923 PVR_NORTHSTAR,
6924 PVR_PULSAR,
6925 PVR_POWER4,
6926 PVR_ICESTAR,
6927 PVR_SSTAR,
6928 PVR_POWER4p,
6929 PVR_630,
6930 PVR_630p
1da177e4
LT		 6931};
6932
6933/**
6934 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6935 * @ioa_cfg: ioa cfg struct
6936 *
6937 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6938 * certain pSeries hardware. This function determines if the given
6939 * adapter is in one of these confgurations or not.
6940 *
6941 * Return value:
6942 * 1 if adapter is not supported / 0 if adapter is supported
6943 **/
6944static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6945{
1da177e4
LT		 6946 int i;
6947
44c10138 6948 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6949 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6950 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6951 return 1;
1da177e4
LT		 6952 }
6953 }
6954 return 0;
6955}
6956#else
6957#define ipr_invalid_adapter(ioa_cfg) 0
6958#endif
6959
6960/**
6961 * ipr_ioa_bringdown_done - IOA bring down completion.
6962 * @ipr_cmd: ipr command struct
6963 *
6964 * This function processes the completion of an adapter bring down.
6965 * It wakes any reset sleepers.
6966 *
6967 * Return value:
6968 * IPR_RC_JOB_RETURN
6969 **/
6970static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6971{
6972 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6973 int i;
1da177e4
LT		 6974
6975 ENTER;
bfae7820
BK		 6976 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6977 ipr_trace;
6978 spin_unlock_irq(ioa_cfg->host->host_lock);
6979 scsi_unblock_requests(ioa_cfg->host);
6980 spin_lock_irq(ioa_cfg->host->host_lock);
6981 }
6982
1da177e4
LT		 6983 ioa_cfg->in_reset_reload = 0;
6984 ioa_cfg->reset_retries = 0;
96b04db9 6985 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6986 spin_lock(&ioa_cfg->hrrq[i]._lock);
6987 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6988 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6989 }
6990 wmb();
6991
05a6538a 6992 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6993 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 6994 LEAVE;
6995
6996 return IPR_RC_JOB_RETURN;
6997}
6998
6999/**
7000 * ipr_ioa_reset_done - IOA reset completion.
7001 * @ipr_cmd: ipr command struct
7002 *
7003 * This function processes the completion of an adapter reset.
7004 * It schedules any necessary mid-layer add/removes and
7005 * wakes any reset sleepers.
7006 *
7007 * Return value:
7008 * IPR_RC_JOB_RETURN
7009 **/
7010static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7011{
7012 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7013 struct ipr_resource_entry *res;
7014 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 7015 int i = 0, j;
1da177e4
LT		 7016
7017 ENTER;
7018 ioa_cfg->in_reset_reload = 0;
56d6aa33 7019 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7020 spin_lock(&ioa_cfg->hrrq[j]._lock);
7021 ioa_cfg->hrrq[j].allow_cmds = 1;
7022 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7023 }
7024 wmb();
1da177e4 7025 ioa_cfg->reset_cmd = NULL;
3d1d0da6 7026 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 7027
7028 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
f688f96d 7029 if (res->add_to_ml || res->del_from_ml) {
1da177e4
LT		 7030 ipr_trace;
7031 break;
7032 }
7033 }
7034 schedule_work(&ioa_cfg->work_q);
7035
7036 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7037 list_del(&hostrcb->queue);
7038 if (i++ < IPR_NUM_LOG_HCAMS)
7039 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7040 else
7041 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7042 }
7043
6bb04170 7044 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 7045 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7046
7047 ioa_cfg->reset_retries = 0;
05a6538a 7048 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 7049 wake_up_all(&ioa_cfg->reset_wait_q);
7050
30237853 7051 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 7052 scsi_unblock_requests(ioa_cfg->host);
30237853 7053 spin_lock(ioa_cfg->host->host_lock);
1da177e4 7054
56d6aa33 7055 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 7056 scsi_block_requests(ioa_cfg->host);
7057
f688f96d 7058 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 7059 LEAVE;
7060 return IPR_RC_JOB_RETURN;
7061}
7062
7063/**
7064 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7065 * @supported_dev: supported device struct
7066 * @vpids: vendor product id struct
7067 *
7068 * Return value:
7069 * none
7070 **/
7071static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7072 struct ipr_std_inq_vpids *vpids)
7073{
7074 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7075 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7076 supported_dev->num_records = 1;
7077 supported_dev->data_length =
7078 cpu_to_be16(sizeof(struct ipr_supported_device));
7079 supported_dev->reserved = 0;
7080}
7081
7082/**
7083 * ipr_set_supported_devs - Send Set Supported Devices for a device
7084 * @ipr_cmd: ipr command struct
7085 *
a32c055f 7086 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 7087 *
7088 * Return value:
7089 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7090 **/
7091static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7092{
7093 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7094 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 7095 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7096 struct ipr_resource_entry *res = ipr_cmd->u.res;
7097
7098 ipr_cmd->job_step = ipr_ioa_reset_done;
7099
7100 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 7101 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 7102 continue;
7103
7104 ipr_cmd->u.res = res;
3e7ebdfa 7105 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 7106
7107 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7108 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7109 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7110
7111 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 7112 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 7113 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7114 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7115
a32c055f
WB		 7116 ipr_init_ioadl(ipr_cmd,
7117 ioa_cfg->vpd_cbs_dma +
7118 offsetof(struct ipr_misc_cbs, supp_dev),
7119 sizeof(struct ipr_supported_device),
7120 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7121
7122 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7123 IPR_SET_SUP_DEVICE_TIMEOUT);
7124
3e7ebdfa
WB		 7125 if (!ioa_cfg->sis64)
7126 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 7127 LEAVE;
1da177e4
LT		 7128 return IPR_RC_JOB_RETURN;
7129 }
7130
05a6538a 7131 LEAVE;
1da177e4
LT		 7132 return IPR_RC_JOB_CONTINUE;
7133}
7134
7135/**
7136 * ipr_get_mode_page - Locate specified mode page
7137 * @mode_pages: mode page buffer
7138 * @page_code: page code to find
7139 * @len: minimum required length for mode page
7140 *
7141 * Return value:
7142 * pointer to mode page / NULL on failure
7143 **/
7144static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7145 u32 page_code, u32 len)
7146{
7147 struct ipr_mode_page_hdr *mode_hdr;
7148 u32 page_length;
7149 u32 length;
7150
7151 if (!mode_pages || (mode_pages->hdr.length == 0))
7152 return NULL;
7153
7154 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7155 mode_hdr = (struct ipr_mode_page_hdr *)
7156 (mode_pages->data + mode_pages->hdr.block_desc_len);
7157
7158 while (length) {
7159 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7160 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7161 return mode_hdr;
7162 break;
7163 } else {
7164 page_length = (sizeof(struct ipr_mode_page_hdr) +
7165 mode_hdr->page_length);
7166 length -= page_length;
7167 mode_hdr = (struct ipr_mode_page_hdr *)
7168 ((unsigned long)mode_hdr + page_length);
7169 }
7170 }
7171 return NULL;
7172}
7173
7174/**
7175 * ipr_check_term_power - Check for term power errors
7176 * @ioa_cfg: ioa config struct
7177 * @mode_pages: IOAFP mode pages buffer
7178 *
7179 * Check the IOAFP's mode page 28 for term power errors
7180 *
7181 * Return value:
7182 * nothing
7183 **/
7184static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7185 struct ipr_mode_pages *mode_pages)
7186{
7187 int i;
7188 int entry_length;
7189 struct ipr_dev_bus_entry *bus;
7190 struct ipr_mode_page28 *mode_page;
7191
7192 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7193 sizeof(struct ipr_mode_page28));
7194
7195 entry_length = mode_page->entry_length;
7196
7197 bus = mode_page->bus;
7198
7199 for (i = 0; i < mode_page->num_entries; i++) {
7200 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7201 dev_err(&ioa_cfg->pdev->dev,
7202 "Term power is absent on scsi bus %d\n",
7203 bus->res_addr.bus);
7204 }
7205
7206 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7207 }
7208}
7209
7210/**
7211 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7212 * @ioa_cfg: ioa config struct
7213 *
7214 * Looks through the config table checking for SES devices. If
7215 * the SES device is in the SES table indicating a maximum SCSI
7216 * bus speed, the speed is limited for the bus.
7217 *
7218 * Return value:
7219 * none
7220 **/
7221static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7222{
7223 u32 max_xfer_rate;
7224 int i;
7225
7226 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7227 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7228 ioa_cfg->bus_attr[i].bus_width);
7229
7230 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7231 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7232 }
7233}
7234
7235/**
7236 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7237 * @ioa_cfg: ioa config struct
7238 * @mode_pages: mode page 28 buffer
7239 *
7240 * Updates mode page 28 based on driver configuration
7241 *
7242 * Return value:
7243 * none
7244 **/
7245static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7246 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7247{
7248 int i, entry_length;
7249 struct ipr_dev_bus_entry *bus;
7250 struct ipr_bus_attributes *bus_attr;
7251 struct ipr_mode_page28 *mode_page;
7252
7253 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7254 sizeof(struct ipr_mode_page28));
7255
7256 entry_length = mode_page->entry_length;
7257
7258 /* Loop for each device bus entry */
7259 for (i = 0, bus = mode_page->bus;
7260 i < mode_page->num_entries;
7261 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7262 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7263 dev_err(&ioa_cfg->pdev->dev,
7264 "Invalid resource address reported: 0x%08X\n",
7265 IPR_GET_PHYS_LOC(bus->res_addr));
7266 continue;
7267 }
7268
7269 bus_attr = &ioa_cfg->bus_attr[i];
7270 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7271 bus->bus_width = bus_attr->bus_width;
7272 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7273 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7274 if (bus_attr->qas_enabled)
7275 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7276 else
7277 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7278 }
7279}
7280
7281/**
7282 * ipr_build_mode_select - Build a mode select command
7283 * @ipr_cmd: ipr command struct
7284 * @res_handle: resource handle to send command to
7285 * @parm: Byte 2 of Mode Sense command
7286 * @dma_addr: DMA buffer address
7287 * @xfer_len: data transfer length
7288 *
7289 * Return value:
7290 * none
7291 **/
7292static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7293 __be32 res_handle, u8 parm,
7294 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7295{
1da177e4
LT		 7296 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7297
7298 ioarcb->res_handle = res_handle;
7299 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7300 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7301 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7302 ioarcb->cmd_pkt.cdb[1] = parm;
7303 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7304
a32c055f 7305 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7306}
7307
7308/**
7309 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7310 * @ipr_cmd: ipr command struct
7311 *
7312 * This function sets up the SCSI bus attributes and sends
7313 * a Mode Select for Page 28 to activate them.
7314 *
7315 * Return value:
7316 * IPR_RC_JOB_RETURN
7317 **/
7318static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7319{
7320 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7321 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7322 int length;
7323
7324 ENTER;
4733804c
BK		 7325 ipr_scsi_bus_speed_limit(ioa_cfg);
7326 ipr_check_term_power(ioa_cfg, mode_pages);
7327 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7328 length = mode_pages->hdr.length + 1;
7329 mode_pages->hdr.length = 0;
1da177e4
LT		 7330
7331 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7332 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7333 length);
7334
f72919ec
WB		 7335 ipr_cmd->job_step = ipr_set_supported_devs;
7336 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7337 struct ipr_resource_entry, queue);
1da177e4
LT		 7338 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7339
7340 LEAVE;
7341 return IPR_RC_JOB_RETURN;
7342}
7343
7344/**
7345 * ipr_build_mode_sense - Builds a mode sense command
7346 * @ipr_cmd: ipr command struct
7347 * @res: resource entry struct
7348 * @parm: Byte 2 of mode sense command
7349 * @dma_addr: DMA address of mode sense buffer
7350 * @xfer_len: Size of DMA buffer
7351 *
7352 * Return value:
7353 * none
7354 **/
7355static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7356 __be32 res_handle,
a32c055f 7357 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7358{
1da177e4
LT		 7359 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7360
7361 ioarcb->res_handle = res_handle;
7362 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7363 ioarcb->cmd_pkt.cdb[2] = parm;
7364 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7365 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7366
a32c055f 7367 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7368}
7369
dfed823e 7370/**
7371 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7372 * @ipr_cmd: ipr command struct
7373 *
7374 * This function handles the failure of an IOA bringup command.
7375 *
7376 * Return value:
7377 * IPR_RC_JOB_RETURN
7378 **/
7379static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7380{
7381 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7382 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 7383
7384 dev_err(&ioa_cfg->pdev->dev,
7385 "0x%02X failed with IOASC: 0x%08X\n",
7386 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7387
7388 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7389 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e 7390 return IPR_RC_JOB_RETURN;
7391}
7392
7393/**
7394 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7395 * @ipr_cmd: ipr command struct
7396 *
7397 * This function handles the failure of a Mode Sense to the IOAFP.
7398 * Some adapters do not handle all mode pages.
7399 *
7400 * Return value:
7401 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7402 **/
7403static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7404{
f72919ec 7405 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7406 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 7407
7408 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7409 ipr_cmd->job_step = ipr_set_supported_devs;
7410 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7411 struct ipr_resource_entry, queue);
dfed823e 7412 return IPR_RC_JOB_CONTINUE;
7413 }
7414
7415 return ipr_reset_cmd_failed(ipr_cmd);
7416}
7417
1da177e4
LT		 7418/**
7419 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7420 * @ipr_cmd: ipr command struct
7421 *
7422 * This function send a Page 28 mode sense to the IOA to
7423 * retrieve SCSI bus attributes.
7424 *
7425 * Return value:
7426 * IPR_RC_JOB_RETURN
7427 **/
7428static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7429{
7430 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7431
7432 ENTER;
7433 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7434 0x28, ioa_cfg->vpd_cbs_dma +
7435 offsetof(struct ipr_misc_cbs, mode_pages),
7436 sizeof(struct ipr_mode_pages));
7437
7438 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7439 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7440
7441 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7442
7443 LEAVE;
7444 return IPR_RC_JOB_RETURN;
7445}
7446
ac09c349
BK		 7447/**
7448 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7449 * @ipr_cmd: ipr command struct
7450 *
7451 * This function enables dual IOA RAID support if possible.
7452 *
7453 * Return value:
7454 * IPR_RC_JOB_RETURN
7455 **/
7456static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7457{
7458 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7459 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7460 struct ipr_mode_page24 *mode_page;
7461 int length;
7462
7463 ENTER;
7464 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7465 sizeof(struct ipr_mode_page24));
7466
7467 if (mode_page)
7468 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7469
7470 length = mode_pages->hdr.length + 1;
7471 mode_pages->hdr.length = 0;
7472
7473 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7474 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7475 length);
7476
7477 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7478 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7479
7480 LEAVE;
7481 return IPR_RC_JOB_RETURN;
7482}
7483
7484/**
7485 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7486 * @ipr_cmd: ipr command struct
7487 *
7488 * This function handles the failure of a Mode Sense to the IOAFP.
7489 * Some adapters do not handle all mode pages.
7490 *
7491 * Return value:
7492 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7493 **/
7494static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7495{
96d21f00 7496 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7497
7498 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7499 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7500 return IPR_RC_JOB_CONTINUE;
7501 }
7502
7503 return ipr_reset_cmd_failed(ipr_cmd);
7504}
7505
7506/**
7507 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7508 * @ipr_cmd: ipr command struct
7509 *
7510 * This function send a mode sense to the IOA to retrieve
7511 * the IOA Advanced Function Control mode page.
7512 *
7513 * Return value:
7514 * IPR_RC_JOB_RETURN
7515 **/
7516static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7517{
7518 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7519
7520 ENTER;
7521 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7522 0x24, ioa_cfg->vpd_cbs_dma +
7523 offsetof(struct ipr_misc_cbs, mode_pages),
7524 sizeof(struct ipr_mode_pages));
7525
7526 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7527 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7528
7529 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7530
7531 LEAVE;
7532 return IPR_RC_JOB_RETURN;
7533}
7534
1da177e4
LT		 7535/**
7536 * ipr_init_res_table - Initialize the resource table
7537 * @ipr_cmd: ipr command struct
7538 *
7539 * This function looks through the existing resource table, comparing
7540 * it with the config table. This function will take care of old/new
7541 * devices and schedule adding/removing them from the mid-layer
7542 * as appropriate.
7543 *
7544 * Return value:
7545 * IPR_RC_JOB_CONTINUE
7546 **/
7547static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7548{
7549 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7550 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7551 struct ipr_config_table_entry_wrapper cfgtew;
7552 int entries, found, flag, i;
1da177e4
LT		 7553 LIST_HEAD(old_res);
7554
7555 ENTER;
3e7ebdfa
WB		 7556 if (ioa_cfg->sis64)
7557 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7558 else
7559 flag = ioa_cfg->u.cfg_table->hdr.flags;
7560
7561 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7562 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7563
7564 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7565 list_move_tail(&res->queue, &old_res);
7566
3e7ebdfa 7567 if (ioa_cfg->sis64)
438b0331 7568 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7569 else
7570 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7571
7572 for (i = 0; i < entries; i++) {
7573 if (ioa_cfg->sis64)
7574 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7575 else
7576 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7577 found = 0;
7578
7579 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7580 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7581 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7582 found = 1;
7583 break;
7584 }
7585 }
7586
7587 if (!found) {
7588 if (list_empty(&ioa_cfg->free_res_q)) {
7589 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7590 break;
7591 }
7592
7593 found = 1;
7594 res = list_entry(ioa_cfg->free_res_q.next,
7595 struct ipr_resource_entry, queue);
7596 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7597 ipr_init_res_entry(res, &cfgtew);
1da177e4 7598 res->add_to_ml = 1;
56115598
WB		 7599 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7600 res->sdev->allow_restart = 1;
1da177e4
LT		 7601
7602 if (found)
3e7ebdfa 7603 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7604 }
7605
7606 list_for_each_entry_safe(res, temp, &old_res, queue) {
7607 if (res->sdev) {
7608 res->del_from_ml = 1;
3e7ebdfa 7609 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7610 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7611 }
7612 }
7613
3e7ebdfa
WB		 7614 list_for_each_entry_safe(res, temp, &old_res, queue) {
7615 ipr_clear_res_target(res);
7616 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7617 }
7618
ac09c349
BK		 7619 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7620 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7621 else
7622 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7623
7624 LEAVE;
7625 return IPR_RC_JOB_CONTINUE;
7626}
7627
7628/**
7629 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7630 * @ipr_cmd: ipr command struct
7631 *
7632 * This function sends a Query IOA Configuration command
7633 * to the adapter to retrieve the IOA configuration table.
7634 *
7635 * Return value:
7636 * IPR_RC_JOB_RETURN
7637 **/
7638static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7639{
7640 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7641 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7642 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7643 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7644
7645 ENTER;
ac09c349
BK		 7646 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7647 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7648 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7649 ucode_vpd->major_release, ucode_vpd->card_type,
7650 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7651 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7652 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7653
7654 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7655 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7656 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7657 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7658
3e7ebdfa 7659 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7660 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7661
7662 ipr_cmd->job_step = ipr_init_res_table;
7663
7664 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7665
7666 LEAVE;
7667 return IPR_RC_JOB_RETURN;
7668}
7669
7670/**
7671 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7672 * @ipr_cmd: ipr command struct
7673 *
7674 * This utility function sends an inquiry to the adapter.
7675 *
7676 * Return value:
7677 * none
7678 **/
7679static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7680 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7681{
7682 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7683
7684 ENTER;
7685 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7686 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7687
7688 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7689 ioarcb->cmd_pkt.cdb[1] = flags;
7690 ioarcb->cmd_pkt.cdb[2] = page;
7691 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7692
a32c055f 7693 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7694
7695 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7696 LEAVE;
7697}
7698
62275040 7699/**
7700 * ipr_inquiry_page_supported - Is the given inquiry page supported
7701 * @page0: inquiry page 0 buffer
7702 * @page: page code.
7703 *
7704 * This function determines if the specified inquiry page is supported.
7705 *
7706 * Return value:
7707 * 1 if page is supported / 0 if not
7708 **/
7709static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7710{
7711 int i;
7712
7713 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7714 if (page0->page[i] == page)
7715 return 1;
7716
7717 return 0;
7718}
7719
ac09c349
BK		 7720/**
7721 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7722 * @ipr_cmd: ipr command struct
7723 *
7724 * This function sends a Page 0xD0 inquiry to the adapter
7725 * to retrieve adapter capabilities.
7726 *
7727 * Return value:
7728 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7729 **/
7730static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7731{
7732 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7733 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7734 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7735
7736 ENTER;
7737 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7738 memset(cap, 0, sizeof(*cap));
7739
7740 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7741 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7742 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7743 sizeof(struct ipr_inquiry_cap));
7744 return IPR_RC_JOB_RETURN;
7745 }
7746
7747 LEAVE;
7748 return IPR_RC_JOB_CONTINUE;
7749}
7750
1da177e4
LT		 7751/**
7752 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7753 * @ipr_cmd: ipr command struct
7754 *
7755 * This function sends a Page 3 inquiry to the adapter
7756 * to retrieve software VPD information.
7757 *
7758 * Return value:
7759 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7760 **/
7761static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040 7762{
7763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040 7764
7765 ENTER;
7766
ac09c349 7767 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040 7768
7769 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7770 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7771 sizeof(struct ipr_inquiry_page3));
7772
7773 LEAVE;
7774 return IPR_RC_JOB_RETURN;
7775}
7776
7777/**
7778 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7779 * @ipr_cmd: ipr command struct
7780 *
7781 * This function sends a Page 0 inquiry to the adapter
7782 * to retrieve supported inquiry pages.
7783 *
7784 * Return value:
7785 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7786 **/
7787static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7788{
7789 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7790 char type[5];
7791
7792 ENTER;
7793
7794 /* Grab the type out of the VPD and store it away */
7795 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7796 type[4] = '\0';
7797 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7798
f688f96d
BK		 7799 if (ipr_invalid_adapter(ioa_cfg)) {
7800 dev_err(&ioa_cfg->pdev->dev,
7801 "Adapter not supported in this hardware configuration.\n");
7802
7803 if (!ipr_testmode) {
7804 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7805 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7806 list_add_tail(&ipr_cmd->queue,
7807 &ioa_cfg->hrrq->hrrq_free_q);
7808 return IPR_RC_JOB_RETURN;
7809 }
7810 }
7811
62275040 7812 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7813
62275040 7814 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7815 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7816 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7817
7818 LEAVE;
7819 return IPR_RC_JOB_RETURN;
7820}
7821
7822/**
7823 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7824 * @ipr_cmd: ipr command struct
7825 *
7826 * This function sends a standard inquiry to the adapter.
7827 *
7828 * Return value:
7829 * IPR_RC_JOB_RETURN
7830 **/
7831static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7832{
7833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7834
7835 ENTER;
62275040 7836 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7837
7838 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7839 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7840 sizeof(struct ipr_ioa_vpd));
7841
7842 LEAVE;
7843 return IPR_RC_JOB_RETURN;
7844}
7845
7846/**
214777ba 7847 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7848 * @ipr_cmd: ipr command struct
7849 *
7850 * This function send an Identify Host Request Response Queue
7851 * command to establish the HRRQ with the adapter.
7852 *
7853 * Return value:
7854 * IPR_RC_JOB_RETURN
7855 **/
214777ba 7856static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7857{
7858 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7859 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7860 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7861
7862 ENTER;
05a6538a 7863 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7864 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7865
56d6aa33 7866 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7867 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7868
05a6538a 7869 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7870 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7871
05a6538a 7872 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7873 if (ioa_cfg->sis64)
7874 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7875
05a6538a 7876 if (ioa_cfg->nvectors == 1)
7877 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7878 else
7879 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7880
7881 ioarcb->cmd_pkt.cdb[2] =
7882 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7883 ioarcb->cmd_pkt.cdb[3] =
7884 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7885 ioarcb->cmd_pkt.cdb[4] =
7886 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7887 ioarcb->cmd_pkt.cdb[5] =
7888 ((u64) hrrq->host_rrq_dma) & 0xff;
7889 ioarcb->cmd_pkt.cdb[7] =
7890 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7891 ioarcb->cmd_pkt.cdb[8] =
7892 (sizeof(u32) * hrrq->size) & 0xff;
7893
7894 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7895 ioarcb->cmd_pkt.cdb[9] =
7896 ioa_cfg->identify_hrrq_index;
1da177e4 7897
05a6538a 7898 if (ioa_cfg->sis64) {
7899 ioarcb->cmd_pkt.cdb[10] =
7900 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7901 ioarcb->cmd_pkt.cdb[11] =
7902 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7903 ioarcb->cmd_pkt.cdb[12] =
7904 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7905 ioarcb->cmd_pkt.cdb[13] =
7906 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
7907 }
7908
7909 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7910 ioarcb->cmd_pkt.cdb[14] =
7911 ioa_cfg->identify_hrrq_index;
05a6538a 7912
7913 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7914 IPR_INTERNAL_TIMEOUT);
7915
56d6aa33 7916 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
7917 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 7918
7919 LEAVE;
7920 return IPR_RC_JOB_RETURN;
05a6538a 7921 }
7922
1da177e4 7923 LEAVE;
05a6538a 7924 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7925}
7926
7927/**
7928 * ipr_reset_timer_done - Adapter reset timer function
7929 * @ipr_cmd: ipr command struct
7930 *
7931 * Description: This function is used in adapter reset processing
7932 * for timing events. If the reset_cmd pointer in the IOA
7933 * config struct is not this adapter's we are doing nested
7934 * resets and fail_all_ops will take care of freeing the
7935 * command block.
7936 *
7937 * Return value:
7938 * none
7939 **/
7940static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7941{
7942 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7943 unsigned long lock_flags = 0;
7944
7945 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7946
7947 if (ioa_cfg->reset_cmd == ipr_cmd) {
7948 list_del(&ipr_cmd->queue);
7949 ipr_cmd->done(ipr_cmd);
7950 }
7951
7952 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7953}
7954
7955/**
7956 * ipr_reset_start_timer - Start a timer for adapter reset job
7957 * @ipr_cmd: ipr command struct
7958 * @timeout: timeout value
7959 *
7960 * Description: This function is used in adapter reset processing
7961 * for timing events. If the reset_cmd pointer in the IOA
7962 * config struct is not this adapter's we are doing nested
7963 * resets and fail_all_ops will take care of freeing the
7964 * command block.
7965 *
7966 * Return value:
7967 * none
7968 **/
7969static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7970 unsigned long timeout)
7971{
05a6538a 7972
7973 ENTER;
7974 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7975 ipr_cmd->done = ipr_reset_ioa_job;
7976
7977 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7978 ipr_cmd->timer.expires = jiffies + timeout;
7979 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7980 add_timer(&ipr_cmd->timer);
7981}
7982
7983/**
7984 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7985 * @ioa_cfg: ioa cfg struct
7986 *
7987 * Return value:
7988 * nothing
7989 **/
7990static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7991{
05a6538a 7992 struct ipr_hrr_queue *hrrq;
1da177e4 7993
05a6538a 7994 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 7995 spin_lock(&hrrq->_lock);
05a6538a 7996 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
7997
7998 /* Initialize Host RRQ pointers */
7999 hrrq->hrrq_start = hrrq->host_rrq;
8000 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8001 hrrq->hrrq_curr = hrrq->hrrq_start;
8002 hrrq->toggle_bit = 1;
56d6aa33 8003 spin_unlock(&hrrq->_lock);
05a6538a 8004 }
56d6aa33 8005 wmb();
05a6538a 8006
56d6aa33 8007 ioa_cfg->identify_hrrq_index = 0;
8008 if (ioa_cfg->hrrq_num == 1)
8009 atomic_set(&ioa_cfg->hrrq_index, 0);
8010 else
8011 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 8012
8013 /* Zero out config table */
3e7ebdfa 8014 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 8015}
8016
214777ba
WB		 8017/**
8018 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8019 * @ipr_cmd: ipr command struct
8020 *
8021 * Return value:
8022 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8023 **/
8024static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8025{
8026 unsigned long stage, stage_time;
8027 u32 feedback;
8028 volatile u32 int_reg;
8029 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8030 u64 maskval = 0;
8031
8032 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8033 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8034 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8035
8036 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8037
8038 /* sanity check the stage_time value */
438b0331
WB		 8039 if (stage_time == 0)
8040 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8041 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 8042 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8043 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8044 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8045
8046 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8047 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8048 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8049 stage_time = ioa_cfg->transop_timeout;
8050 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8051 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 8052 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8053 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8054 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8055 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8056 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8057 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8058 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8059 return IPR_RC_JOB_CONTINUE;
8060 }
214777ba
WB		 8061 }
8062
8063 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8064 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8065 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8066 ipr_cmd->done = ipr_reset_ioa_job;
8067 add_timer(&ipr_cmd->timer);
05a6538a 8068
8069 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 8070
8071 return IPR_RC_JOB_RETURN;
8072}
8073
1da177e4
LT		 8074/**
8075 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8076 * @ipr_cmd: ipr command struct
8077 *
8078 * This function reinitializes some control blocks and
8079 * enables destructive diagnostics on the adapter.
8080 *
8081 * Return value:
8082 * IPR_RC_JOB_RETURN
8083 **/
8084static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8085{
8086 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8087 volatile u32 int_reg;
7be96900 8088 volatile u64 maskval;
56d6aa33 8089 int i;
1da177e4
LT		 8090
8091 ENTER;
214777ba 8092 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 8093 ipr_init_ioa_mem(ioa_cfg);
8094
56d6aa33 8095 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8096 spin_lock(&ioa_cfg->hrrq[i]._lock);
8097 ioa_cfg->hrrq[i].allow_interrupts = 1;
8098 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8099 }
8100 wmb();
8701f185
WB		 8101 if (ioa_cfg->sis64) {
8102 /* Set the adapter to the correct endian mode. */
8103 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8104 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8105 }
8106
7be96900 8107 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 8108
8109 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8110 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 8111 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 8112 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8113 return IPR_RC_JOB_CONTINUE;
8114 }
8115
8116 /* Enable destructive diagnostics on IOA */
214777ba
WB		 8117 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8118
7be96900
WB		 8119 if (ioa_cfg->sis64) {
8120 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8121 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8122 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8123 } else
8124 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 8125
1da177e4
LT		 8126 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8127
8128 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8129
214777ba
WB		 8130 if (ioa_cfg->sis64) {
8131 ipr_cmd->job_step = ipr_reset_next_stage;
8132 return IPR_RC_JOB_CONTINUE;
8133 }
8134
1da177e4 8135 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 8136 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 8137 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8138 ipr_cmd->done = ipr_reset_ioa_job;
8139 add_timer(&ipr_cmd->timer);
05a6538a 8140 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8141
8142 LEAVE;
8143 return IPR_RC_JOB_RETURN;
8144}
8145
8146/**
8147 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8148 * @ipr_cmd: ipr command struct
8149 *
8150 * This function is invoked when an adapter dump has run out
8151 * of processing time.
8152 *
8153 * Return value:
8154 * IPR_RC_JOB_CONTINUE
8155 **/
8156static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8157{
8158 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8159
8160 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 8161 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8162 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 8163 ioa_cfg->sdt_state = ABORT_DUMP;
8164
4c647e90 8165 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 8166 ipr_cmd->job_step = ipr_reset_alert;
8167
8168 return IPR_RC_JOB_CONTINUE;
8169}
8170
8171/**
8172 * ipr_unit_check_no_data - Log a unit check/no data error log
8173 * @ioa_cfg: ioa config struct
8174 *
8175 * Logs an error indicating the adapter unit checked, but for some
8176 * reason, we were unable to fetch the unit check buffer.
8177 *
8178 * Return value:
8179 * nothing
8180 **/
8181static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8182{
8183 ioa_cfg->errors_logged++;
8184 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8185}
8186
8187/**
8188 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8189 * @ioa_cfg: ioa config struct
8190 *
8191 * Fetches the unit check buffer from the adapter by clocking the data
8192 * through the mailbox register.
8193 *
8194 * Return value:
8195 * nothing
8196 **/
8197static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8198{
8199 unsigned long mailbox;
8200 struct ipr_hostrcb *hostrcb;
8201 struct ipr_uc_sdt sdt;
8202 int rc, length;
65f56475 8203 u32 ioasc;
1da177e4
LT		 8204
8205 mailbox = readl(ioa_cfg->ioa_mailbox);
8206
dcbad00e 8207 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8208 ipr_unit_check_no_data(ioa_cfg);
8209 return;
8210 }
8211
8212 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8213 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8214 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8215
dcbad00e
WB		 8216 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8217 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8218 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8219 ipr_unit_check_no_data(ioa_cfg);
8220 return;
8221 }
8222
8223 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8224 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8225 length = be32_to_cpu(sdt.entry[0].end_token);
8226 else
8227 length = (be32_to_cpu(sdt.entry[0].end_token) -
8228 be32_to_cpu(sdt.entry[0].start_token)) &
8229 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8230
8231 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8232 struct ipr_hostrcb, queue);
8233 list_del(&hostrcb->queue);
8234 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8235
8236 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8237 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8238 (__be32 *)&hostrcb->hcam,
8239 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8240
65f56475 8241 if (!rc) {
1da177e4 8242 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8243 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8244 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8245 ioa_cfg->sdt_state == GET_DUMP)
8246 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8247 } else
1da177e4
LT		 8248 ipr_unit_check_no_data(ioa_cfg);
8249
8250 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8251}
8252
110def85
WB		 8253/**
8254 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8255 * @ipr_cmd: ipr command struct
8256 *
8257 * Description: This function will call to get the unit check buffer.
8258 *
8259 * Return value:
8260 * IPR_RC_JOB_RETURN
8261 **/
8262static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8263{
8264 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8265
8266 ENTER;
8267 ioa_cfg->ioa_unit_checked = 0;
8268 ipr_get_unit_check_buffer(ioa_cfg);
8269 ipr_cmd->job_step = ipr_reset_alert;
8270 ipr_reset_start_timer(ipr_cmd, 0);
8271
8272 LEAVE;
8273 return IPR_RC_JOB_RETURN;
8274}
8275
1da177e4
LT		 8276/**
8277 * ipr_reset_restore_cfg_space - Restore PCI config space.
8278 * @ipr_cmd: ipr command struct
8279 *
8280 * Description: This function restores the saved PCI config space of
8281 * the adapter, fails all outstanding ops back to the callers, and
8282 * fetches the dump/unit check if applicable to this reset.
8283 *
8284 * Return value:
8285 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8286 **/
8287static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8288{
8289 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8290 u32 int_reg;
1da177e4
LT		 8291
8292 ENTER;
99c965dd 8293 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8294 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8295
8296 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8297 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8298 return IPR_RC_JOB_CONTINUE;
8299 }
8300
8301 ipr_fail_all_ops(ioa_cfg);
8302
8701f185
WB		 8303 if (ioa_cfg->sis64) {
8304 /* Set the adapter to the correct endian mode. */
8305 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8306 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8307 }
8308
1da177e4 8309 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8310 if (ioa_cfg->sis64) {
8311 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8312 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8313 return IPR_RC_JOB_RETURN;
8314 } else {
8315 ioa_cfg->ioa_unit_checked = 0;
8316 ipr_get_unit_check_buffer(ioa_cfg);
8317 ipr_cmd->job_step = ipr_reset_alert;
8318 ipr_reset_start_timer(ipr_cmd, 0);
8319 return IPR_RC_JOB_RETURN;
8320 }
1da177e4
LT		 8321 }
8322
8323 if (ioa_cfg->in_ioa_bringdown) {
8324 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8325 } else {
8326 ipr_cmd->job_step = ipr_reset_enable_ioa;
8327
8328 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 8329 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 8330 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 8331 if (ioa_cfg->sis64)
8332 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8333 else
8334 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 8335 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8336 schedule_work(&ioa_cfg->work_q);
8337 return IPR_RC_JOB_RETURN;
8338 }
8339 }
8340
438b0331 8341 LEAVE;
1da177e4
LT		 8342 return IPR_RC_JOB_CONTINUE;
8343}
8344
e619e1a7
BK		 8345/**
8346 * ipr_reset_bist_done - BIST has completed on the adapter.
8347 * @ipr_cmd: ipr command struct
8348 *
8349 * Description: Unblock config space and resume the reset process.
8350 *
8351 * Return value:
8352 * IPR_RC_JOB_CONTINUE
8353 **/
8354static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8355{
fb51ccbf
JK		 8356 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8357
e619e1a7 8358 ENTER;
fb51ccbf
JK		 8359 if (ioa_cfg->cfg_locked)
8360 pci_cfg_access_unlock(ioa_cfg->pdev);
8361 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8362 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8363 LEAVE;
8364 return IPR_RC_JOB_CONTINUE;
8365}
8366
1da177e4
LT		 8367/**
8368 * ipr_reset_start_bist - Run BIST on the adapter.
8369 * @ipr_cmd: ipr command struct
8370 *
8371 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8372 *
8373 * Return value:
8374 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8375 **/
8376static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8377{
8378 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8379 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8380
8381 ENTER;
cb237ef7
WB		 8382 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8383 writel(IPR_UPROCI_SIS64_START_BIST,
8384 ioa_cfg->regs.set_uproc_interrupt_reg32);
8385 else
8386 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8387
8388 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8389 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8390 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8391 rc = IPR_RC_JOB_RETURN;
cb237ef7 8392 } else {
fb51ccbf
JK		 8393 if (ioa_cfg->cfg_locked)
8394 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8395 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8396 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8397 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8398 }
8399
8400 LEAVE;
8401 return rc;
8402}
8403
463fc696
BK		 8404/**
8405 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8406 * @ipr_cmd: ipr command struct
8407 *
8408 * Description: This clears PCI reset to the adapter and delays two seconds.
8409 *
8410 * Return value:
8411 * IPR_RC_JOB_RETURN
8412 **/
8413static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8414{
8415 ENTER;
463fc696
BK		 8416 ipr_cmd->job_step = ipr_reset_bist_done;
8417 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8418 LEAVE;
8419 return IPR_RC_JOB_RETURN;
8420}
8421
2796ca5e
BK		 8422/**
8423 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8424 * @work: work struct
8425 *
8426 * Description: This pulses warm reset to a slot.
8427 *
8428 **/
8429static void ipr_reset_reset_work(struct work_struct *work)
8430{
8431 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8432 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8433 struct pci_dev *pdev = ioa_cfg->pdev;
8434 unsigned long lock_flags = 0;
8435
8436 ENTER;
8437 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8438 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8439 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8440
8441 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8442 if (ioa_cfg->reset_cmd == ipr_cmd)
8443 ipr_reset_ioa_job(ipr_cmd);
8444 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8445 LEAVE;
8446}
8447
463fc696
BK		 8448/**
8449 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8450 * @ipr_cmd: ipr command struct
8451 *
8452 * Description: This asserts PCI reset to the adapter.
8453 *
8454 * Return value:
8455 * IPR_RC_JOB_RETURN
8456 **/
8457static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8458{
8459 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
463fc696
BK		 8460
8461 ENTER;
2796ca5e
BK		 8462 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8463 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
463fc696 8464 ipr_cmd->job_step = ipr_reset_slot_reset_done;
463fc696
BK		 8465 LEAVE;
8466 return IPR_RC_JOB_RETURN;
8467}
8468
fb51ccbf
JK		 8469/**
8470 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8471 * @ipr_cmd: ipr command struct
8472 *
8473 * Description: This attempts to block config access to the IOA.
8474 *
8475 * Return value:
8476 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8477 **/
8478static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8479{
8480 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8481 int rc = IPR_RC_JOB_CONTINUE;
8482
8483 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8484 ioa_cfg->cfg_locked = 1;
8485 ipr_cmd->job_step = ioa_cfg->reset;
8486 } else {
8487 if (ipr_cmd->u.time_left) {
8488 rc = IPR_RC_JOB_RETURN;
8489 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8490 ipr_reset_start_timer(ipr_cmd,
8491 IPR_CHECK_FOR_RESET_TIMEOUT);
8492 } else {
8493 ipr_cmd->job_step = ioa_cfg->reset;
8494 dev_err(&ioa_cfg->pdev->dev,
8495 "Timed out waiting to lock config access. Resetting anyway.\n");
8496 }
8497 }
8498
8499 return rc;
8500}
8501
8502/**
8503 * ipr_reset_block_config_access - Block config access to the IOA
8504 * @ipr_cmd: ipr command struct
8505 *
8506 * Description: This attempts to block config access to the IOA
8507 *
8508 * Return value:
8509 * IPR_RC_JOB_CONTINUE
8510 **/
8511static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8512{
8513 ipr_cmd->ioa_cfg->cfg_locked = 0;
8514 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8515 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8516 return IPR_RC_JOB_CONTINUE;
8517}
8518
1da177e4
LT		 8519/**
8520 * ipr_reset_allowed - Query whether or not IOA can be reset
8521 * @ioa_cfg: ioa config struct
8522 *
8523 * Return value:
8524 * 0 if reset not allowed / non-zero if reset is allowed
8525 **/
8526static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8527{
8528 volatile u32 temp_reg;
8529
8530 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8531 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8532}
8533
8534/**
8535 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8536 * @ipr_cmd: ipr command struct
8537 *
8538 * Description: This function waits for adapter permission to run BIST,
8539 * then runs BIST. If the adapter does not give permission after a
8540 * reasonable time, we will reset the adapter anyway. The impact of
8541 * resetting the adapter without warning the adapter is the risk of
8542 * losing the persistent error log on the adapter. If the adapter is
8543 * reset while it is writing to the flash on the adapter, the flash
8544 * segment will have bad ECC and be zeroed.
8545 *
8546 * Return value:
8547 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8548 **/
8549static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8550{
8551 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8552 int rc = IPR_RC_JOB_RETURN;
8553
8554 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8555 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8556 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8557 } else {
fb51ccbf 8558 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8559 rc = IPR_RC_JOB_CONTINUE;
8560 }
8561
8562 return rc;
8563}
8564
8565/**
8701f185 8566 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8567 * @ipr_cmd: ipr command struct
8568 *
8569 * Description: This function alerts the adapter that it will be reset.
8570 * If memory space is not currently enabled, proceed directly
8571 * to running BIST on the adapter. The timer must always be started
8572 * so we guarantee we do not run BIST from ipr_isr.
8573 *
8574 * Return value:
8575 * IPR_RC_JOB_RETURN
8576 **/
8577static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8578{
8579 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8580 u16 cmd_reg;
8581 int rc;
8582
8583 ENTER;
8584 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8585
8586 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8587 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8588 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8589 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8590 } else {
fb51ccbf 8591 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8592 }
8593
8594 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8595 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8596
8597 LEAVE;
8598 return IPR_RC_JOB_RETURN;
8599}
8600
4fdd7c7a
BK		 8601/**
8602 * ipr_reset_quiesce_done - Complete IOA disconnect
8603 * @ipr_cmd: ipr command struct
8604 *
8605 * Description: Freeze the adapter to complete quiesce processing
8606 *
8607 * Return value:
8608 * IPR_RC_JOB_CONTINUE
8609 **/
8610static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8611{
8612 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8613
8614 ENTER;
8615 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8616 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8617 LEAVE;
8618 return IPR_RC_JOB_CONTINUE;
8619}
8620
8621/**
8622 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8623 * @ipr_cmd: ipr command struct
8624 *
8625 * Description: Ensure nothing is outstanding to the IOA and
8626 * proceed with IOA disconnect. Otherwise reset the IOA.
8627 *
8628 * Return value:
8629 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8630 **/
8631static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8632{
8633 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8634 struct ipr_cmnd *loop_cmd;
8635 struct ipr_hrr_queue *hrrq;
8636 int rc = IPR_RC_JOB_CONTINUE;
8637 int count = 0;
8638
8639 ENTER;
8640 ipr_cmd->job_step = ipr_reset_quiesce_done;
8641
8642 for_each_hrrq(hrrq, ioa_cfg) {
8643 spin_lock(&hrrq->_lock);
8644 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8645 count++;
8646 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8647 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8648 rc = IPR_RC_JOB_RETURN;
8649 break;
8650 }
8651 spin_unlock(&hrrq->_lock);
8652
8653 if (count)
8654 break;
8655 }
8656
8657 LEAVE;
8658 return rc;
8659}
8660
8661/**
8662 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8663 * @ipr_cmd: ipr command struct
8664 *
8665 * Description: Cancel any oustanding HCAMs to the IOA.
8666 *
8667 * Return value:
8668 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8669 **/
8670static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8671{
8672 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8673 int rc = IPR_RC_JOB_CONTINUE;
8674 struct ipr_cmd_pkt *cmd_pkt;
8675 struct ipr_cmnd *hcam_cmd;
8676 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8677
8678 ENTER;
8679 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8680
8681 if (!hrrq->ioa_is_dead) {
8682 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8683 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8684 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8685 continue;
8686
8687 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8688 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8689 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8690 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8691 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8692 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8693 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8694 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8695 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8696 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8697 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8698 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8699 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8700 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8701
8702 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8703 IPR_CANCEL_TIMEOUT);
8704
8705 rc = IPR_RC_JOB_RETURN;
8706 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8707 break;
8708 }
8709 }
8710 } else
8711 ipr_cmd->job_step = ipr_reset_alert;
8712
8713 LEAVE;
8714 return rc;
8715}
8716
1da177e4
LT		 8717/**
8718 * ipr_reset_ucode_download_done - Microcode download completion
8719 * @ipr_cmd: ipr command struct
8720 *
8721 * Description: This function unmaps the microcode download buffer.
8722 *
8723 * Return value:
8724 * IPR_RC_JOB_CONTINUE
8725 **/
8726static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8727{
8728 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8729 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8730
d73341bf 8731 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 8732 sglist->num_sg, DMA_TO_DEVICE);
8733
8734 ipr_cmd->job_step = ipr_reset_alert;
8735 return IPR_RC_JOB_CONTINUE;
8736}
8737
8738/**
8739 * ipr_reset_ucode_download - Download microcode to the adapter
8740 * @ipr_cmd: ipr command struct
8741 *
8742 * Description: This function checks to see if it there is microcode
8743 * to download to the adapter. If there is, a download is performed.
8744 *
8745 * Return value:
8746 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8747 **/
8748static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8749{
8750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8751 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8752
8753 ENTER;
8754 ipr_cmd->job_step = ipr_reset_alert;
8755
8756 if (!sglist)
8757 return IPR_RC_JOB_CONTINUE;
8758
8759 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8760 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8761 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8762 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8763 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8764 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8765 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8766
a32c055f
WB		 8767 if (ioa_cfg->sis64)
8768 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8769 else
8770 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8771 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8772
8773 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8774 IPR_WRITE_BUFFER_TIMEOUT);
8775
8776 LEAVE;
8777 return IPR_RC_JOB_RETURN;
8778}
8779
8780/**
8781 * ipr_reset_shutdown_ioa - Shutdown the adapter
8782 * @ipr_cmd: ipr command struct
8783 *
8784 * Description: This function issues an adapter shutdown of the
8785 * specified type to the specified adapter as part of the
8786 * adapter reset job.
8787 *
8788 * Return value:
8789 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8790 **/
8791static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8792{
8793 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8794 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8795 unsigned long timeout;
8796 int rc = IPR_RC_JOB_CONTINUE;
8797
8798 ENTER;
4fdd7c7a
BK		 8799 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8800 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8801 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
56d6aa33 8802 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8803 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8804 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8805 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8806 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8807
ac09c349
BK		 8808 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8809 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8810 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8811 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8812 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8813 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8814 else
ac09c349 8815 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8816
8817 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8818
8819 rc = IPR_RC_JOB_RETURN;
8820 ipr_cmd->job_step = ipr_reset_ucode_download;
8821 } else
8822 ipr_cmd->job_step = ipr_reset_alert;
8823
8824 LEAVE;
8825 return rc;
8826}
8827
8828/**
8829 * ipr_reset_ioa_job - Adapter reset job
8830 * @ipr_cmd: ipr command struct
8831 *
8832 * Description: This function is the job router for the adapter reset job.
8833 *
8834 * Return value:
8835 * none
8836 **/
8837static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8838{
8839 u32 rc, ioasc;
1da177e4
LT		 8840 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8841
8842 do {
96d21f00 8843 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8844
8845 if (ioa_cfg->reset_cmd != ipr_cmd) {
8846 /*
8847 * We are doing nested adapter resets and this is
8848 * not the current reset job.
8849 */
05a6538a 8850 list_add_tail(&ipr_cmd->queue,
8851 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8852 return;
8853 }
8854
8855 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e 8856 rc = ipr_cmd->job_step_failed(ipr_cmd);
8857 if (rc == IPR_RC_JOB_RETURN)
8858 return;
1da177e4
LT		 8859 }
8860
8861 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8862 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8863 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8864 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8865}
8866
8867/**
8868 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8869 * @ioa_cfg: ioa config struct
8870 * @job_step: first job step of reset job
8871 * @shutdown_type: shutdown type
8872 *
8873 * Description: This function will initiate the reset of the given adapter
8874 * starting at the selected job step.
8875 * If the caller needs to wait on the completion of the reset,
8876 * the caller must sleep on the reset_wait_q.
8877 *
8878 * Return value:
8879 * none
8880 **/
8881static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8882 int (*job_step) (struct ipr_cmnd *),
8883 enum ipr_shutdown_type shutdown_type)
8884{
8885 struct ipr_cmnd *ipr_cmd;
56d6aa33 8886 int i;
1da177e4
LT		 8887
8888 ioa_cfg->in_reset_reload = 1;
56d6aa33 8889 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8890 spin_lock(&ioa_cfg->hrrq[i]._lock);
8891 ioa_cfg->hrrq[i].allow_cmds = 0;
8892 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8893 }
8894 wmb();
bfae7820
BK		 8895 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
8896 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 8897
8898 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8899 ioa_cfg->reset_cmd = ipr_cmd;
8900 ipr_cmd->job_step = job_step;
8901 ipr_cmd->u.shutdown_type = shutdown_type;
8902
8903 ipr_reset_ioa_job(ipr_cmd);
8904}
8905
8906/**
8907 * ipr_initiate_ioa_reset - Initiate an adapter reset
8908 * @ioa_cfg: ioa config struct
8909 * @shutdown_type: shutdown type
8910 *
8911 * Description: This function will initiate the reset of the given adapter.
8912 * If the caller needs to wait on the completion of the reset,
8913 * the caller must sleep on the reset_wait_q.
8914 *
8915 * Return value:
8916 * none
8917 **/
8918static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8919 enum ipr_shutdown_type shutdown_type)
8920{
56d6aa33 8921 int i;
8922
8923 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 8924 return;
8925
41e9a696
BK		 8926 if (ioa_cfg->in_reset_reload) {
8927 if (ioa_cfg->sdt_state == GET_DUMP)
8928 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8929 else if (ioa_cfg->sdt_state == READ_DUMP)
8930 ioa_cfg->sdt_state = ABORT_DUMP;
8931 }
1da177e4
LT		 8932
8933 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8934 dev_err(&ioa_cfg->pdev->dev,
8935 "IOA taken offline - error recovery failed\n");
8936
8937 ioa_cfg->reset_retries = 0;
56d6aa33 8938 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8939 spin_lock(&ioa_cfg->hrrq[i]._lock);
8940 ioa_cfg->hrrq[i].ioa_is_dead = 1;
8941 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8942 }
8943 wmb();
1da177e4
LT		 8944
8945 if (ioa_cfg->in_ioa_bringdown) {
8946 ioa_cfg->reset_cmd = NULL;
8947 ioa_cfg->in_reset_reload = 0;
8948 ipr_fail_all_ops(ioa_cfg);
8949 wake_up_all(&ioa_cfg->reset_wait_q);
8950
bfae7820
BK		 8951 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
8952 spin_unlock_irq(ioa_cfg->host->host_lock);
8953 scsi_unblock_requests(ioa_cfg->host);
8954 spin_lock_irq(ioa_cfg->host->host_lock);
8955 }
1da177e4
LT		 8956 return;
8957 } else {
8958 ioa_cfg->in_ioa_bringdown = 1;
8959 shutdown_type = IPR_SHUTDOWN_NONE;
8960 }
8961 }
8962
8963 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8964 shutdown_type);
8965}
8966
f8a88b19
LV		 8967/**
8968 * ipr_reset_freeze - Hold off all I/O activity
8969 * @ipr_cmd: ipr command struct
8970 *
8971 * Description: If the PCI slot is frozen, hold off all I/O
8972 * activity; then, as soon as the slot is available again,
8973 * initiate an adapter reset.
8974 */
8975static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8976{
56d6aa33 8977 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8978 int i;
8979
f8a88b19 8980 /* Disallow new interrupts, avoid loop */
56d6aa33 8981 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8982 spin_lock(&ioa_cfg->hrrq[i]._lock);
8983 ioa_cfg->hrrq[i].allow_interrupts = 0;
8984 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8985 }
8986 wmb();
05a6538a 8987 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 8988 ipr_cmd->done = ipr_reset_ioa_job;
8989 return IPR_RC_JOB_RETURN;
8990}
8991
6270e593
BK		 8992/**
8993 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
8994 * @pdev: PCI device struct
8995 *
8996 * Description: This routine is called to tell us that the MMIO
8997 * access to the IOA has been restored
8998 */
8999static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9000{
9001 unsigned long flags = 0;
9002 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9003
9004 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9005 if (!ioa_cfg->probe_done)
9006 pci_save_state(pdev);
9007 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9008 return PCI_ERS_RESULT_NEED_RESET;
9009}
9010
f8a88b19
LV		 9011/**
9012 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9013 * @pdev: PCI device struct
9014 *
9015 * Description: This routine is called to tell us that the PCI bus
9016 * is down. Can't do anything here, except put the device driver
9017 * into a holding pattern, waiting for the PCI bus to come back.
9018 */
9019static void ipr_pci_frozen(struct pci_dev *pdev)
9020{
9021 unsigned long flags = 0;
9022 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9023
9024 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9025 if (ioa_cfg->probe_done)
9026 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 9027 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9028}
9029
9030/**
9031 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9032 * @pdev: PCI device struct
9033 *
9034 * Description: This routine is called by the pci error recovery
9035 * code after the PCI slot has been reset, just before we
9036 * should resume normal operations.
9037 */
9038static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9039{
9040 unsigned long flags = 0;
9041 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9042
9043 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9044 if (ioa_cfg->probe_done) {
9045 if (ioa_cfg->needs_warm_reset)
9046 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9047 else
9048 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9049 IPR_SHUTDOWN_NONE);
9050 } else
9051 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9052 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9053 return PCI_ERS_RESULT_RECOVERED;
9054}
9055
9056/**
9057 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9058 * @pdev: PCI device struct
9059 *
9060 * Description: This routine is called when the PCI bus has
9061 * permanently failed.
9062 */
9063static void ipr_pci_perm_failure(struct pci_dev *pdev)
9064{
9065 unsigned long flags = 0;
9066 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 9067 int i;
f8a88b19
LV		 9068
9069 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9070 if (ioa_cfg->probe_done) {
9071 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9072 ioa_cfg->sdt_state = ABORT_DUMP;
9073 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9074 ioa_cfg->in_ioa_bringdown = 1;
9075 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9076 spin_lock(&ioa_cfg->hrrq[i]._lock);
9077 ioa_cfg->hrrq[i].allow_cmds = 0;
9078 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9079 }
9080 wmb();
9081 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9082 } else
9083 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9084 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9085}
9086
9087/**
9088 * ipr_pci_error_detected - Called when a PCI error is detected.
9089 * @pdev: PCI device struct
9090 * @state: PCI channel state
9091 *
9092 * Description: Called when a PCI error is detected.
9093 *
9094 * Return value:
9095 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9096 */
9097static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9098 pci_channel_state_t state)
9099{
9100 switch (state) {
9101 case pci_channel_io_frozen:
9102 ipr_pci_frozen(pdev);
6270e593 9103 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 9104 case pci_channel_io_perm_failure:
9105 ipr_pci_perm_failure(pdev);
9106 return PCI_ERS_RESULT_DISCONNECT;
9107 break;
9108 default:
9109 break;
9110 }
9111 return PCI_ERS_RESULT_NEED_RESET;
9112}
9113
1da177e4
LT		 9114/**
9115 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9116 * @ioa_cfg: ioa cfg struct
9117 *
9118 * Description: This is the second phase of adapter intialization
9119 * This function takes care of initilizing the adapter to the point
9120 * where it can accept new commands.
9121
9122 * Return value:
b1c11812 9123 * 0 on success / -EIO on failure
1da177e4 9124 **/
6f039790 9125static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9126{
9127 int rc = 0;
9128 unsigned long host_lock_flags = 0;
9129
9130 ENTER;
9131 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9132 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 9133 ioa_cfg->probe_done = 1;
ce155cce 9134 if (ioa_cfg->needs_hard_reset) {
9135 ioa_cfg->needs_hard_reset = 0;
9136 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9137 } else
9138 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9139 IPR_SHUTDOWN_NONE);
1da177e4 9140 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
1da177e4
LT		 9141
9142 LEAVE;
9143 return rc;
9144}
9145
9146/**
9147 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9148 * @ioa_cfg: ioa config struct
9149 *
9150 * Return value:
9151 * none
9152 **/
9153static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9154{
9155 int i;
9156
a65e8f12
BK		 9157 if (ioa_cfg->ipr_cmnd_list) {
9158 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9159 if (ioa_cfg->ipr_cmnd_list[i])
9160 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9161 ioa_cfg->ipr_cmnd_list[i],
9162 ioa_cfg->ipr_cmnd_list_dma[i]);
1da177e4 9163
a65e8f12
BK		 9164 ioa_cfg->ipr_cmnd_list[i] = NULL;
9165 }
1da177e4
LT		 9166 }
9167
9168 if (ioa_cfg->ipr_cmd_pool)
d73341bf 9169 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 9170
89aad428
BK		 9171 kfree(ioa_cfg->ipr_cmnd_list);
9172 kfree(ioa_cfg->ipr_cmnd_list_dma);
9173 ioa_cfg->ipr_cmnd_list = NULL;
9174 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 9175 ioa_cfg->ipr_cmd_pool = NULL;
9176}
9177
9178/**
9179 * ipr_free_mem - Frees memory allocated for an adapter
9180 * @ioa_cfg: ioa cfg struct
9181 *
9182 * Return value:
9183 * nothing
9184 **/
9185static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9186{
9187 int i;
9188
9189 kfree(ioa_cfg->res_entries);
d73341bf
AB		 9190 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9191 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 9192 ipr_free_cmd_blks(ioa_cfg);
05a6538a 9193
9194 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 9195 dma_free_coherent(&ioa_cfg->pdev->dev,
9196 sizeof(u32) * ioa_cfg->hrrq[i].size,
9197 ioa_cfg->hrrq[i].host_rrq,
9198 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9199
d73341bf
AB		 9200 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9201 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4
LT		 9202
9203 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9204 dma_free_coherent(&ioa_cfg->pdev->dev,
9205 sizeof(struct ipr_hostrcb),
9206 ioa_cfg->hostrcb[i],
9207 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 9208 }
9209
9210 ipr_free_dump(ioa_cfg);
1da177e4
LT		 9211 kfree(ioa_cfg->trace);
9212}
9213
9214/**
2796ca5e
BK		 9215 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9216 * @ioa_cfg: ipr cfg struct
1da177e4 9217 *
2796ca5e 9218 * This function frees all allocated IRQs for the
1da177e4
LT		 9219 * specified adapter.
9220 *
9221 * Return value:
9222 * none
9223 **/
2796ca5e 9224static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9225{
9226 struct pci_dev *pdev = ioa_cfg->pdev;
9227
05a6538a 9228 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9229 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9230 int i;
9231 for (i = 0; i < ioa_cfg->nvectors; i++)
9232 free_irq(ioa_cfg->vectors_info[i].vec,
2796ca5e 9233 &ioa_cfg->hrrq[i]);
05a6538a 9234 } else
9235 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9236
56d6aa33 9237 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 9238 pci_disable_msi(pdev);
56d6aa33 9239 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9240 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 9241 pci_disable_msix(pdev);
56d6aa33 9242 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9243 }
2796ca5e 9244}
05a6538a 9245
2796ca5e
BK		 9246/**
9247 * ipr_free_all_resources - Free all allocated resources for an adapter.
9248 * @ipr_cmd: ipr command struct
9249 *
9250 * This function frees all allocated resources for the
9251 * specified adapter.
9252 *
9253 * Return value:
9254 * none
9255 **/
9256static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9257{
9258 struct pci_dev *pdev = ioa_cfg->pdev;
05a6538a 9259
2796ca5e
BK		 9260 ENTER;
9261 ipr_free_irqs(ioa_cfg);
9262 if (ioa_cfg->reset_work_q)
9263 destroy_workqueue(ioa_cfg->reset_work_q);
1da177e4
LT		 9264 iounmap(ioa_cfg->hdw_dma_regs);
9265 pci_release_regions(pdev);
9266 ipr_free_mem(ioa_cfg);
9267 scsi_host_put(ioa_cfg->host);
9268 pci_disable_device(pdev);
9269 LEAVE;
9270}
9271
9272/**
9273 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9274 * @ioa_cfg: ioa config struct
9275 *
9276 * Return value:
9277 * 0 on success / -ENOMEM on allocation failure
9278 **/
6f039790 9279static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9280{
9281 struct ipr_cmnd *ipr_cmd;
9282 struct ipr_ioarcb *ioarcb;
9283 dma_addr_t dma_addr;
05a6538a 9284 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 9285
d73341bf 9286 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 9287 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 9288
9289 if (!ioa_cfg->ipr_cmd_pool)
9290 return -ENOMEM;
9291
89aad428
BK		 9292 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9293 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9294
9295 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9296 ipr_free_cmd_blks(ioa_cfg);
9297 return -ENOMEM;
9298 }
9299
05a6538a 9300 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9301 if (ioa_cfg->hrrq_num > 1) {
9302 if (i == 0) {
9303 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9304 ioa_cfg->hrrq[i].min_cmd_id = 0;
9305 ioa_cfg->hrrq[i].max_cmd_id =
9306 (entries_each_hrrq - 1);
9307 } else {
9308 entries_each_hrrq =
9309 IPR_NUM_BASE_CMD_BLKS/
9310 (ioa_cfg->hrrq_num - 1);
9311 ioa_cfg->hrrq[i].min_cmd_id =
9312 IPR_NUM_INTERNAL_CMD_BLKS +
9313 (i - 1) * entries_each_hrrq;
9314 ioa_cfg->hrrq[i].max_cmd_id =
9315 (IPR_NUM_INTERNAL_CMD_BLKS +
9316 i * entries_each_hrrq - 1);
9317 }
9318 } else {
9319 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9320 ioa_cfg->hrrq[i].min_cmd_id = 0;
9321 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9322 }
9323 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9324 }
9325
9326 BUG_ON(ioa_cfg->hrrq_num == 0);
9327
9328 i = IPR_NUM_CMD_BLKS -
9329 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9330 if (i > 0) {
9331 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9332 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9333 }
9334
1da177e4 9335 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 9336 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 9337
9338 if (!ipr_cmd) {
9339 ipr_free_cmd_blks(ioa_cfg);
9340 return -ENOMEM;
9341 }
9342
9343 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9344 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9345 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9346
9347 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9348 ipr_cmd->dma_addr = dma_addr;
9349 if (ioa_cfg->sis64)
9350 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9351 else
9352 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9353
1da177e4 9354 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9355 if (ioa_cfg->sis64) {
9356 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9357 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9358 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9359 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9360 } else {
9361 ioarcb->write_ioadl_addr =
9362 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9363 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9364 ioarcb->ioasa_host_pci_addr =
96d21f00 9365 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9366 }
1da177e4
LT		 9367 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9368 ipr_cmd->cmd_index = i;
9369 ipr_cmd->ioa_cfg = ioa_cfg;
9370 ipr_cmd->sense_buffer_dma = dma_addr +
9371 offsetof(struct ipr_cmnd, sense_buffer);
9372
05a6538a 9373 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9374 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9375 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9376 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9377 hrrq_id++;
1da177e4
LT		 9378 }
9379
9380 return 0;
9381}
9382
9383/**
9384 * ipr_alloc_mem - Allocate memory for an adapter
9385 * @ioa_cfg: ioa config struct
9386 *
9387 * Return value:
9388 * 0 on success / non-zero for error
9389 **/
6f039790 9390static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9391{
9392 struct pci_dev *pdev = ioa_cfg->pdev;
9393 int i, rc = -ENOMEM;
9394
9395 ENTER;
0bc42e35 9396 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9397 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9398
9399 if (!ioa_cfg->res_entries)
9400 goto out;
9401
3e7ebdfa 9402 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9403 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9404 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9405 }
1da177e4 9406
d73341bf
AB		 9407 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9408 sizeof(struct ipr_misc_cbs),
9409 &ioa_cfg->vpd_cbs_dma,
9410 GFP_KERNEL);
1da177e4
LT		 9411
9412 if (!ioa_cfg->vpd_cbs)
9413 goto out_free_res_entries;
9414
9415 if (ipr_alloc_cmd_blks(ioa_cfg))
9416 goto out_free_vpd_cbs;
9417
05a6538a 9418 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9419 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9420 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9421 &ioa_cfg->hrrq[i].host_rrq_dma,
9422 GFP_KERNEL);
05a6538a 9423
9424 if (!ioa_cfg->hrrq[i].host_rrq) {
9425 while (--i > 0)
d73341bf 9426 dma_free_coherent(&pdev->dev,
05a6538a 9427 sizeof(u32) * ioa_cfg->hrrq[i].size,
9428 ioa_cfg->hrrq[i].host_rrq,
9429 ioa_cfg->hrrq[i].host_rrq_dma);
9430 goto out_ipr_free_cmd_blocks;
9431 }
9432 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9433 }
1da177e4 9434
d73341bf
AB		 9435 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9436 ioa_cfg->cfg_table_size,
9437 &ioa_cfg->cfg_table_dma,
9438 GFP_KERNEL);
1da177e4 9439
3e7ebdfa 9440 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9441 goto out_free_host_rrq;
9442
9443 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9444 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9445 sizeof(struct ipr_hostrcb),
9446 &ioa_cfg->hostrcb_dma[i],
9447 GFP_KERNEL);
1da177e4
LT		 9448
9449 if (!ioa_cfg->hostrcb[i])
9450 goto out_free_hostrcb_dma;
9451
9452 ioa_cfg->hostrcb[i]->hostrcb_dma =
9453 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9454 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9455 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9456 }
9457
0bc42e35 9458 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9459 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9460
9461 if (!ioa_cfg->trace)
9462 goto out_free_hostrcb_dma;
9463
1da177e4
LT		 9464 rc = 0;
9465out:
9466 LEAVE;
9467 return rc;
9468
9469out_free_hostrcb_dma:
9470 while (i-- > 0) {
d73341bf
AB		 9471 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9472 ioa_cfg->hostrcb[i],
9473 ioa_cfg->hostrcb_dma[i]);
1da177e4 9474 }
d73341bf
AB		 9475 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9476 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9477out_free_host_rrq:
05a6538a 9478 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9479 dma_free_coherent(&pdev->dev,
9480 sizeof(u32) * ioa_cfg->hrrq[i].size,
9481 ioa_cfg->hrrq[i].host_rrq,
9482 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9483 }
1da177e4
LT		 9484out_ipr_free_cmd_blocks:
9485 ipr_free_cmd_blks(ioa_cfg);
9486out_free_vpd_cbs:
d73341bf
AB		 9487 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9488 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9489out_free_res_entries:
9490 kfree(ioa_cfg->res_entries);
9491 goto out;
9492}
9493
9494/**
9495 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9496 * @ioa_cfg: ioa config struct
9497 *
9498 * Return value:
9499 * none
9500 **/
6f039790 9501static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9502{
9503 int i;
9504
9505 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9506 ioa_cfg->bus_attr[i].bus = i;
9507 ioa_cfg->bus_attr[i].qas_enabled = 0;
9508 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9509 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9510 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9511 else
9512 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9513 }
9514}
9515
6270e593
BK		 9516/**
9517 * ipr_init_regs - Initialize IOA registers
9518 * @ioa_cfg: ioa config struct
9519 *
9520 * Return value:
9521 * none
9522 **/
9523static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9524{
9525 const struct ipr_interrupt_offsets *p;
9526 struct ipr_interrupts *t;
9527 void __iomem *base;
9528
9529 p = &ioa_cfg->chip_cfg->regs;
9530 t = &ioa_cfg->regs;
9531 base = ioa_cfg->hdw_dma_regs;
9532
9533 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9534 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9535 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9536 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9537 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9538 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9539 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9540 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9541 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9542 t->ioarrin_reg = base + p->ioarrin_reg;
9543 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9544 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9545 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9546 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9547 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9548 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9549
9550 if (ioa_cfg->sis64) {
9551 t->init_feedback_reg = base + p->init_feedback_reg;
9552 t->dump_addr_reg = base + p->dump_addr_reg;
9553 t->dump_data_reg = base + p->dump_data_reg;
9554 t->endian_swap_reg = base + p->endian_swap_reg;
9555 }
9556}
9557
1da177e4
LT		 9558/**
9559 * ipr_init_ioa_cfg - Initialize IOA config struct
9560 * @ioa_cfg: ioa config struct
9561 * @host: scsi host struct
9562 * @pdev: PCI dev struct
9563 *
9564 * Return value:
9565 * none
9566 **/
6f039790
GKH		 9567static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9568 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9569{
6270e593 9570 int i;
1da177e4
LT		 9571
9572 ioa_cfg->host = host;
9573 ioa_cfg->pdev = pdev;
9574 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9575 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9576 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9577 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9578 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9579 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9580 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9581 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9582
1da177e4
LT		 9583 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9584 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9585 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9586 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9587 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9588 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9589 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9590 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9591 ioa_cfg->sdt_state = INACTIVE;
9592
9593 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9594 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9595
3e7ebdfa
WB		 9596 if (ioa_cfg->sis64) {
9597 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9598 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9599 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9600 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9601 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9602 + ((sizeof(struct ipr_config_table_entry64)
9603 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9604 } else {
9605 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9606 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9607 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9608 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9609 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9610 + ((sizeof(struct ipr_config_table_entry)
9611 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9612 }
6270e593 9613
f688f96d 9614 host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9615 host->unique_id = host->host_no;
9616 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9617 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9618 pci_set_drvdata(pdev, ioa_cfg);
9619
6270e593
BK		 9620 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9621 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9622 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9623 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9624 if (i == 0)
9625 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9626 else
9627 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9628 }
1da177e4
LT		 9629}
9630
9631/**
1be7bd82 9632 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9633 * @dev_id: PCI device id struct
9634 *
9635 * Return value:
1be7bd82 9636 * ptr to chip information on success / NULL on failure
1da177e4 9637 **/
6f039790 9638static const struct ipr_chip_t *
1be7bd82 9639ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9640{
9641 int i;
9642
1da177e4
LT		 9643 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9644 if (ipr_chip[i].vendor == dev_id->vendor &&
9645 ipr_chip[i].device == dev_id->device)
1be7bd82 9646 return &ipr_chip[i];
1da177e4
LT		 9647 return NULL;
9648}
9649
6270e593
BK		 9650/**
9651 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9652 * during probe time
9653 * @ioa_cfg: ioa config struct
9654 *
9655 * Return value:
9656 * None
9657 **/
9658static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9659{
9660 struct pci_dev *pdev = ioa_cfg->pdev;
9661
9662 if (pci_channel_offline(pdev)) {
9663 wait_event_timeout(ioa_cfg->eeh_wait_q,
9664 !pci_channel_offline(pdev),
9665 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9666 pci_restore_state(pdev);
9667 }
9668}
9669
05a6538a 9670static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9671{
9672 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
60e76b77 9673 int i, vectors;
05a6538a 9674
9675 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9676 entries[i].entry = i;
9677
60e76b77
AG		 9678 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9679 entries, 1, ipr_number_of_msix);
9680 if (vectors < 0) {
6270e593 9681 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9682 return vectors;
05a6538a 9683 }
9684
60e76b77
AG		 9685 for (i = 0; i < vectors; i++)
9686 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9687 ioa_cfg->nvectors = vectors;
05a6538a 9688
60e76b77 9689 return 0;
05a6538a 9690}
9691
9692static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9693{
60e76b77 9694 int i, vectors;
05a6538a 9695
60e76b77
AG		 9696 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9697 if (vectors < 0) {
6270e593 9698 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9699 return vectors;
05a6538a 9700 }
9701
60e76b77
AG		 9702 for (i = 0; i < vectors; i++)
9703 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9704 ioa_cfg->nvectors = vectors;
05a6538a 9705
60e76b77 9706 return 0;
05a6538a 9707}
9708
9709static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9710{
9711 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9712
9713 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9714 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9715 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9716 ioa_cfg->vectors_info[vec_idx].
9717 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9718 }
9719}
9720
9721static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9722{
9723 int i, rc;
9724
9725 for (i = 1; i < ioa_cfg->nvectors; i++) {
9726 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9727 ipr_isr_mhrrq,
9728 0,
9729 ioa_cfg->vectors_info[i].desc,
9730 &ioa_cfg->hrrq[i]);
9731 if (rc) {
9732 while (--i >= 0)
9733 free_irq(ioa_cfg->vectors_info[i].vec,
9734 &ioa_cfg->hrrq[i]);
9735 return rc;
9736 }
9737 }
9738 return 0;
9739}
9740
95fecd90
WB		 9741/**
9742 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9743 * @pdev: PCI device struct
9744 *
9745 * Description: Simply set the msi_received flag to 1 indicating that
9746 * Message Signaled Interrupts are supported.
9747 *
9748 * Return value:
9749 * 0 on success / non-zero on failure
9750 **/
6f039790 9751static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9752{
9753 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9754 unsigned long lock_flags = 0;
9755 irqreturn_t rc = IRQ_HANDLED;
9756
05a6538a 9757 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9758 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9759
9760 ioa_cfg->msi_received = 1;
9761 wake_up(&ioa_cfg->msi_wait_q);
9762
9763 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9764 return rc;
9765}
9766
9767/**
9768 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9769 * @pdev: PCI device struct
9770 *
60e76b77 9771 * Description: The return value from pci_enable_msi_range() can not always be
95fecd90
WB		 9772 * trusted. This routine sets up and initiates a test interrupt to determine
9773 * if the interrupt is received via the ipr_test_intr() service routine.
9774 * If the tests fails, the driver will fall back to LSI.
9775 *
9776 * Return value:
9777 * 0 on success / non-zero on failure
9778 **/
6f039790 9779static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9780{
9781 int rc;
9782 volatile u32 int_reg;
9783 unsigned long lock_flags = 0;
9784
9785 ENTER;
9786
9787 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9788 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9789 ioa_cfg->msi_received = 0;
9790 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9791 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9792 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9793 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9794
f19799f4 9795 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9796 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9797 else
9798 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9799 if (rc) {
9800 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9801 return rc;
9802 } else if (ipr_debug)
9803 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9804
214777ba 9805 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9806 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9807 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9808 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9809 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9810
95fecd90
WB		 9811 if (!ioa_cfg->msi_received) {
9812 /* MSI test failed */
9813 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9814 rc = -EOPNOTSUPP;
9815 } else if (ipr_debug)
9816 dev_info(&pdev->dev, "MSI test succeeded.\n");
9817
9818 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9819
f19799f4 9820 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9821 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9822 else
9823 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9824
9825 LEAVE;
9826
9827 return rc;
9828}
9829
05a6538a 9830 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9831 * @pdev: PCI device struct
9832 * @dev_id: PCI device id struct
9833 *
9834 * Return value:
9835 * 0 on success / non-zero on failure
9836 **/
6f039790
GKH		 9837static int ipr_probe_ioa(struct pci_dev *pdev,
9838 const struct pci_device_id *dev_id)
1da177e4
LT		 9839{
9840 struct ipr_ioa_cfg *ioa_cfg;
9841 struct Scsi_Host *host;
9842 unsigned long ipr_regs_pci;
9843 void __iomem *ipr_regs;
a2a65a3e 9844 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9845 volatile u32 mask, uproc, interrupts;
feccada9 9846 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9847
9848 ENTER;
9849
1da177e4 9850 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9851 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9852
9853 if (!host) {
9854 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9855 rc = -ENOMEM;
6270e593 9856 goto out;
1da177e4
LT		 9857 }
9858
9859 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9860 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9861 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9862
1be7bd82 9863 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9864
1be7bd82 9865 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9866 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9867 dev_id->vendor, dev_id->device);
9868 goto out_scsi_host_put;
9869 }
9870
a32c055f
WB		 9871 /* set SIS 32 or SIS 64 */
9872 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9873 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 9874 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 9875 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 9876
5469cb5b
BK		 9877 if (ipr_transop_timeout)
9878 ioa_cfg->transop_timeout = ipr_transop_timeout;
9879 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
9880 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
9881 else
9882 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
9883
44c10138 9884 ioa_cfg->revid = pdev->revision;
463fc696 9885
6270e593
BK		 9886 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
9887
1da177e4
LT		 9888 ipr_regs_pci = pci_resource_start(pdev, 0);
9889
9890 rc = pci_request_regions(pdev, IPR_NAME);
9891 if (rc < 0) {
9892 dev_err(&pdev->dev,
9893 "Couldn't register memory range of registers\n");
9894 goto out_scsi_host_put;
9895 }
9896
6270e593
BK		 9897 rc = pci_enable_device(pdev);
9898
9899 if (rc || pci_channel_offline(pdev)) {
9900 if (pci_channel_offline(pdev)) {
9901 ipr_wait_for_pci_err_recovery(ioa_cfg);
9902 rc = pci_enable_device(pdev);
9903 }
9904
9905 if (rc) {
9906 dev_err(&pdev->dev, "Cannot enable adapter\n");
9907 ipr_wait_for_pci_err_recovery(ioa_cfg);
9908 goto out_release_regions;
9909 }
9910 }
9911
25729a7f 9912 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 9913
9914 if (!ipr_regs) {
9915 dev_err(&pdev->dev,
9916 "Couldn't map memory range of registers\n");
9917 rc = -ENOMEM;
6270e593 9918 goto out_disable;
1da177e4
LT		 9919 }
9920
9921 ioa_cfg->hdw_dma_regs = ipr_regs;
9922 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
9923 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
9924
6270e593 9925 ipr_init_regs(ioa_cfg);
1da177e4 9926
a32c055f 9927 if (ioa_cfg->sis64) {
869404cb 9928 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 9929 if (rc < 0) {
869404cb
AB		 9930 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
9931 rc = dma_set_mask_and_coherent(&pdev->dev,
9932 DMA_BIT_MASK(32));
a32c055f 9933 }
a32c055f 9934 } else
869404cb 9935 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 9936
1da177e4 9937 if (rc < 0) {
869404cb 9938 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 9939 goto cleanup_nomem;
9940 }
9941
9942 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
9943 ioa_cfg->chip_cfg->cache_line_size);
9944
9945 if (rc != PCIBIOS_SUCCESSFUL) {
9946 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 9947 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 9948 rc = -EIO;
9949 goto cleanup_nomem;
9950 }
9951
6270e593
BK		 9952 /* Issue MMIO read to ensure card is not in EEH */
9953 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
9954 ipr_wait_for_pci_err_recovery(ioa_cfg);
9955
05a6538a 9956 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
9957 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
9958 IPR_MAX_MSIX_VECTORS);
9959 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
9960 }
9961
9962 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9963 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 9964 ioa_cfg->intr_flag = IPR_USE_MSIX;
9965 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9966 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 9967 ioa_cfg->intr_flag = IPR_USE_MSI;
9968 else {
9969 ioa_cfg->intr_flag = IPR_USE_LSI;
9970 ioa_cfg->nvectors = 1;
9971 dev_info(&pdev->dev, "Cannot enable MSI.\n");
9972 }
9973
6270e593
BK		 9974 pci_set_master(pdev);
9975
9976 if (pci_channel_offline(pdev)) {
9977 ipr_wait_for_pci_err_recovery(ioa_cfg);
9978 pci_set_master(pdev);
9979 if (pci_channel_offline(pdev)) {
9980 rc = -EIO;
9981 goto out_msi_disable;
9982 }
9983 }
9984
05a6538a 9985 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9986 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 9987 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 9988 if (rc == -EOPNOTSUPP) {
6270e593 9989 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9990 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9991 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9992 pci_disable_msi(pdev);
9993 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9994 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9995 pci_disable_msix(pdev);
9996 }
9997
9998 ioa_cfg->intr_flag = IPR_USE_LSI;
9999 ioa_cfg->nvectors = 1;
10000 }
95fecd90
WB		 10001 else if (rc)
10002 goto out_msi_disable;
05a6538a 10003 else {
10004 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10005 dev_info(&pdev->dev,
10006 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10007 ioa_cfg->nvectors, pdev->irq);
10008 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10009 dev_info(&pdev->dev,
10010 "Request for %d MSIXs succeeded.",
10011 ioa_cfg->nvectors);
10012 }
10013 }
10014
10015 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10016 (unsigned int)num_online_cpus(),
10017 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 10018
1da177e4 10019 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 10020 goto out_msi_disable;
1da177e4
LT		 10021
10022 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 10023 goto out_msi_disable;
1da177e4
LT		 10024
10025 rc = ipr_alloc_mem(ioa_cfg);
10026 if (rc < 0) {
10027 dev_err(&pdev->dev,
10028 "Couldn't allocate enough memory for device driver!\n");
f170c684 10029 goto out_msi_disable;
1da177e4
LT		 10030 }
10031
6270e593
BK		 10032 /* Save away PCI config space for use following IOA reset */
10033 rc = pci_save_state(pdev);
10034
10035 if (rc != PCIBIOS_SUCCESSFUL) {
10036 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10037 rc = -EIO;
10038 goto cleanup_nolog;
10039 }
10040
ce155cce 10041 /*
10042 * If HRRQ updated interrupt is not masked, or reset alert is set,
10043 * the card is in an unknown state and needs a hard reset
10044 */
214777ba
WB		 10045 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10046 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10047 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce 10048 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10049 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 10050 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 10051 ioa_cfg->needs_hard_reset = 1;
10052 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10053 ioa_cfg->ioa_unit_checked = 1;
ce155cce 10054
56d6aa33 10055 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10056 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 10057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10058
05a6538a 10059 if (ioa_cfg->intr_flag == IPR_USE_MSI
10060 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10061 name_msi_vectors(ioa_cfg);
10062 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10063 0,
10064 ioa_cfg->vectors_info[0].desc,
10065 &ioa_cfg->hrrq[0]);
10066 if (!rc)
10067 rc = ipr_request_other_msi_irqs(ioa_cfg);
10068 } else {
10069 rc = request_irq(pdev->irq, ipr_isr,
10070 IRQF_SHARED,
10071 IPR_NAME, &ioa_cfg->hrrq[0]);
10072 }
1da177e4
LT		 10073 if (rc) {
10074 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10075 pdev->irq, rc);
10076 goto cleanup_nolog;
10077 }
10078
463fc696
BK		 10079 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10080 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10081 ioa_cfg->needs_warm_reset = 1;
10082 ioa_cfg->reset = ipr_reset_slot_reset;
2796ca5e
BK		 10083
10084 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10085 WQ_MEM_RECLAIM, host->host_no);
10086
10087 if (!ioa_cfg->reset_work_q) {
10088 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10089 goto out_free_irq;
10090 }
463fc696
BK		 10091 } else
10092 ioa_cfg->reset = ipr_reset_start_bist;
10093
feccada9 10094 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10095 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 10096 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10097
10098 LEAVE;
10099out:
10100 return rc;
10101
2796ca5e
BK		 10102out_free_irq:
10103 ipr_free_irqs(ioa_cfg);
1da177e4
LT		 10104cleanup_nolog:
10105 ipr_free_mem(ioa_cfg);
95fecd90 10106out_msi_disable:
6270e593 10107 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 10108 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10109 pci_disable_msi(pdev);
10110 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10111 pci_disable_msix(pdev);
f170c684
JL		 10112cleanup_nomem:
10113 iounmap(ipr_regs);
6270e593
BK		 10114out_disable:
10115 pci_disable_device(pdev);
1da177e4
LT		 10116out_release_regions:
10117 pci_release_regions(pdev);
10118out_scsi_host_put:
10119 scsi_host_put(host);
1da177e4
LT		 10120 goto out;
10121}
10122
1da177e4
LT		 10123/**
10124 * ipr_initiate_ioa_bringdown - Bring down an adapter
10125 * @ioa_cfg: ioa config struct
10126 * @shutdown_type: shutdown type
10127 *
10128 * Description: This function will initiate bringing down the adapter.
10129 * This consists of issuing an IOA shutdown to the adapter
10130 * to flush the cache, and running BIST.
10131 * If the caller needs to wait on the completion of the reset,
10132 * the caller must sleep on the reset_wait_q.
10133 *
10134 * Return value:
10135 * none
10136 **/
10137static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10138 enum ipr_shutdown_type shutdown_type)
10139{
10140 ENTER;
10141 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10142 ioa_cfg->sdt_state = ABORT_DUMP;
10143 ioa_cfg->reset_retries = 0;
10144 ioa_cfg->in_ioa_bringdown = 1;
10145 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10146 LEAVE;
10147}
10148
10149/**
10150 * __ipr_remove - Remove a single adapter
10151 * @pdev: pci device struct
10152 *
10153 * Adapter hot plug remove entry point.
10154 *
10155 * Return value:
10156 * none
10157 **/
10158static void __ipr_remove(struct pci_dev *pdev)
10159{
10160 unsigned long host_lock_flags = 0;
10161 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 10162 int i;
feccada9 10163 unsigned long driver_lock_flags;
1da177e4
LT		 10164 ENTER;
10165
10166 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 10167 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10168 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10169 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10170 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10171 }
10172
bfae7820
BK		 10173 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10174 spin_lock(&ioa_cfg->hrrq[i]._lock);
10175 ioa_cfg->hrrq[i].removing_ioa = 1;
10176 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10177 }
10178 wmb();
1da177e4
LT		 10179 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10180
10181 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10182 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 10183 flush_work(&ioa_cfg->work_q);
2796ca5e
BK		 10184 if (ioa_cfg->reset_work_q)
10185 flush_workqueue(ioa_cfg->reset_work_q);
9077a944 10186 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 10187 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10188
feccada9 10189 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10190 list_del(&ioa_cfg->queue);
feccada9 10191 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10192
10193 if (ioa_cfg->sdt_state == ABORT_DUMP)
10194 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10195 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10196
10197 ipr_free_all_resources(ioa_cfg);
10198
10199 LEAVE;
10200}
10201
10202/**
10203 * ipr_remove - IOA hot plug remove entry point
10204 * @pdev: pci device struct
10205 *
10206 * Adapter hot plug remove entry point.
10207 *
10208 * Return value:
10209 * none
10210 **/
6f039790 10211static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 10212{
10213 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10214
10215 ENTER;
10216
ee959b00 10217 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10218 &ipr_trace_attr);
ee959b00 10219 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10220 &ipr_dump_attr);
10221 scsi_remove_host(ioa_cfg->host);
10222
10223 __ipr_remove(pdev);
10224
10225 LEAVE;
10226}
10227
10228/**
10229 * ipr_probe - Adapter hot plug add entry point
10230 *
10231 * Return value:
10232 * 0 on success / non-zero on failure
10233 **/
6f039790 10234static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 10235{
10236 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 10237 int rc, i;
1da177e4
LT		 10238
10239 rc = ipr_probe_ioa(pdev, dev_id);
10240
10241 if (rc)
10242 return rc;
10243
10244 ioa_cfg = pci_get_drvdata(pdev);
10245 rc = ipr_probe_ioa_part2(ioa_cfg);
10246
10247 if (rc) {
10248 __ipr_remove(pdev);
10249 return rc;
10250 }
10251
10252 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10253
10254 if (rc) {
10255 __ipr_remove(pdev);
10256 return rc;
10257 }
10258
ee959b00 10259 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10260 &ipr_trace_attr);
10261
10262 if (rc) {
10263 scsi_remove_host(ioa_cfg->host);
10264 __ipr_remove(pdev);
10265 return rc;
10266 }
10267
ee959b00 10268 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10269 &ipr_dump_attr);
10270
10271 if (rc) {
ee959b00 10272 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10273 &ipr_trace_attr);
10274 scsi_remove_host(ioa_cfg->host);
10275 __ipr_remove(pdev);
10276 return rc;
10277 }
10278
10279 scsi_scan_host(ioa_cfg->host);
b53d124a 10280 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10281
89f8b33c 10282 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10283 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10284 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
10285 ioa_cfg->iopoll_weight, ipr_iopoll);
10286 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
10287 }
10288 }
10289
1da177e4
LT		 10290 schedule_work(&ioa_cfg->work_q);
10291 return 0;
10292}
10293
10294/**
10295 * ipr_shutdown - Shutdown handler.
d18c3db5 10296 * @pdev: pci device struct
1da177e4
LT		 10297 *
10298 * This function is invoked upon system shutdown/reboot. It will issue
10299 * an adapter shutdown to the adapter to flush the write cache.
10300 *
10301 * Return value:
10302 * none
10303 **/
d18c3db5 10304static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 10305{
d18c3db5 10306 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 10307 unsigned long lock_flags = 0;
4fdd7c7a 10308 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
b53d124a 10309 int i;
1da177e4
LT		 10310
10311 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 10312 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10313 ioa_cfg->iopoll_weight = 0;
10314 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10315 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10316 }
10317
203fa3fe 10318 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10319 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10320 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10321 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10322 }
10323
4fdd7c7a
BK		 10324 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10325 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10326
10327 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
1da177e4
LT		 10328 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10329 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4fdd7c7a 10330 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
2796ca5e 10331 ipr_free_irqs(ioa_cfg);
4fdd7c7a
BK		 10332 pci_disable_device(ioa_cfg->pdev);
10333 }
1da177e4
LT		 10334}
10335
6f039790 10336static struct pci_device_id ipr_pci_table[] = {
1da177e4 10337 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10338 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10339 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10340 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10341 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10342 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10343 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10344 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10345 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10346 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10347 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10348 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10349 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10350 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10351 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10352 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10353 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10354 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10355 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10356 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10357 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10358 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10359 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10360 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10361 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10362 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10363 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10364 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10365 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10366 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10367 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10368 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10369 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10370 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10371 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10372 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10373 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10374 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10375 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10376 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10377 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10378 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10379 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10380 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10381 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10382 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10383 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10384 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10385 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10386 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10387 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10388 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10389 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10390 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10391 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10392 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10393 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10394 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10395 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10396 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10397 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10398 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10399 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10400 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10401 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10402 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10403 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10404 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10405 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10406 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10407 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10408 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10409 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10410 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10411 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10412 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10413 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10414 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10415 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10416 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10417 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10418 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10419 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10420 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10421 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10422 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10423 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10424 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10425 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10426 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10427 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10428 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10429 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10430 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10431 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10432 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10433 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10434 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10435 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10436 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10437 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10438 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10439 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10440 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10441 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
1da177e4
LT		 10442 { }
10443};
10444MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10445
a55b2d21 10446static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10447 .error_detected = ipr_pci_error_detected,
6270e593 10448 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10449 .slot_reset = ipr_pci_slot_reset,
10450};
10451
1da177e4
LT		 10452static struct pci_driver ipr_driver = {
10453 .name = IPR_NAME,
10454 .id_table = ipr_pci_table,
10455 .probe = ipr_probe,
6f039790 10456 .remove = ipr_remove,
d18c3db5 10457 .shutdown = ipr_shutdown,
f8a88b19 10458 .err_handler = &ipr_err_handler,
1da177e4
LT		 10459};
10460
f72919ec
WB		 10461/**
10462 * ipr_halt_done - Shutdown prepare completion
10463 *
10464 * Return value:
10465 * none
10466 **/
10467static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10468{
05a6538a 10469 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10470}
10471
10472/**
10473 * ipr_halt - Issue shutdown prepare to all adapters
10474 *
10475 * Return value:
10476 * NOTIFY_OK on success / NOTIFY_DONE on failure
10477 **/
10478static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10479{
10480 struct ipr_cmnd *ipr_cmd;
10481 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10482 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10483
10484 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10485 return NOTIFY_DONE;
10486
feccada9 10487 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10488
10489 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10490 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4fdd7c7a
BK		 10491 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10492 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
f72919ec
WB		 10493 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10494 continue;
10495 }
10496
10497 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10498 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10499 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10500 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10501 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10502
10503 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10504 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10505 }
feccada9 10506 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10507
10508 return NOTIFY_OK;
10509}
10510
10511static struct notifier_block ipr_notifier = {
10512 ipr_halt, NULL, 0
10513};
10514
1da177e4
LT		 10515/**
10516 * ipr_init - Module entry point
10517 *
10518 * Return value:
10519 * 0 on success / negative value on failure
10520 **/
10521static int __init ipr_init(void)
10522{
10523 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10524 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10525
f72919ec 10526 register_reboot_notifier(&ipr_notifier);
dcbccbde 10527 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10528}
10529
10530/**
10531 * ipr_exit - Module unload
10532 *
10533 * Module unload entry point.
10534 *
10535 * Return value:
10536 * none
10537 **/
10538static void __exit ipr_exit(void)
10539{
f72919ec 10540 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10541 pci_unregister_driver(&ipr_driver);
10542}
10543
10544module_init(ipr_init);
10545module_exit(ipr_exit);
Linux kernel - Deliverables
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