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scsi: remove current_cmnd field from struct scsi_device
[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 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
BK		 2514 case IPR_HOST_RCB_OVERLAY_ID_7:
2515 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2516 break;
ee0f05b8
BK		 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
BK		 3525/**
3526 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3527 * @class_dev: device struct
3528 * @buf: buffer
f37eb54b
BK		 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
BK		 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
BK		 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
BK		 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
BK		 3563 const char *buf, size_t count)
3564{
ee959b00 3565 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 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
BK		 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
BK		 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
BK		 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
511cbce2 3641static int ipr_iopoll(struct irq_poll *iop, int budget);
b53d124a 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) {
511cbce2 3684 dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n");
b53d124a 3685 return -EINVAL;
3686 }
3687 if (kstrtoul(buf, 10, &user_iopoll_weight))
3688 return -EINVAL;
3689
3690 if (user_iopoll_weight > 256) {
511cbce2 3691 dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n");
b53d124a 3692 return -EINVAL;
3693 }
3694
3695 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
511cbce2 3696 dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n");
b53d124a 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++)
511cbce2 3702 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
b53d124a 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++) {
511cbce2 3709 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
b53d124a 3710 ioa_cfg->iopoll_weight, ipr_iopoll);
b53d124a 3711 }
3712 }
3713 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3714
3715 return strlen(buf);
3716}
3717
3718static struct device_attribute ipr_iopoll_weight_attr = {
3719 .attr = {
3720 .name = "iopoll_weight",
3721 .mode = S_IRUGO | S_IWUSR,
3722 },
3723 .show = ipr_show_iopoll_weight,
3724 .store = ipr_store_iopoll_weight
3725};
3726
1da177e4
LT		 3727/**
3728 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3729 * @buf_len: buffer length
3730 *
3731 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3732 * list to use for microcode download
3733 *
3734 * Return value:
3735 * pointer to sglist / NULL on failure
3736 **/
3737static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3738{
3739 int sg_size, order, bsize_elem, num_elem, i, j;
3740 struct ipr_sglist *sglist;
3741 struct scatterlist *scatterlist;
3742 struct page *page;
3743
3744 /* Get the minimum size per scatter/gather element */
3745 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3746
3747 /* Get the actual size per element */
3748 order = get_order(sg_size);
3749
3750 /* Determine the actual number of bytes per element */
3751 bsize_elem = PAGE_SIZE * (1 << order);
3752
3753 /* Determine the actual number of sg entries needed */
3754 if (buf_len % bsize_elem)
3755 num_elem = (buf_len / bsize_elem) + 1;
3756 else
3757 num_elem = buf_len / bsize_elem;
3758
3759 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3760 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3761 (sizeof(struct scatterlist) * (num_elem - 1)),
3762 GFP_KERNEL);
3763
3764 if (sglist == NULL) {
3765 ipr_trace;
3766 return NULL;
3767 }
3768
1da177e4 3769 scatterlist = sglist->scatterlist;
45711f1a 3770 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3771
3772 sglist->order = order;
3773 sglist->num_sg = num_elem;
3774
3775 /* Allocate a bunch of sg elements */
3776 for (i = 0; i < num_elem; i++) {
3777 page = alloc_pages(GFP_KERNEL, order);
3778 if (!page) {
3779 ipr_trace;
3780
3781 /* Free up what we already allocated */
3782 for (j = i - 1; j >= 0; j--)
45711f1a 3783 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3784 kfree(sglist);
3785 return NULL;
3786 }
3787
642f1490 3788 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3789 }
3790
3791 return sglist;
3792}
3793
3794/**
3795 * ipr_free_ucode_buffer - Frees a microcode download buffer
3796 * @p_dnld: scatter/gather list pointer
3797 *
3798 * Free a DMA'able ucode download buffer previously allocated with
3799 * ipr_alloc_ucode_buffer
3800 *
3801 * Return value:
3802 * nothing
3803 **/
3804static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3805{
3806 int i;
3807
3808 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3809 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3810
3811 kfree(sglist);
3812}
3813
3814/**
3815 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3816 * @sglist: scatter/gather list pointer
3817 * @buffer: buffer pointer
3818 * @len: buffer length
3819 *
3820 * Copy a microcode image from a user buffer into a buffer allocated by
3821 * ipr_alloc_ucode_buffer
3822 *
3823 * Return value:
3824 * 0 on success / other on failure
3825 **/
3826static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3827 u8 *buffer, u32 len)
3828{
3829 int bsize_elem, i, result = 0;
3830 struct scatterlist *scatterlist;
3831 void *kaddr;
3832
3833 /* Determine the actual number of bytes per element */
3834 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3835
3836 scatterlist = sglist->scatterlist;
3837
3838 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3839 struct page *page = sg_page(&scatterlist[i]);
3840
3841 kaddr = kmap(page);
1da177e4 3842 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3843 kunmap(page);
1da177e4
LT		 3844
3845 scatterlist[i].length = bsize_elem;
3846
3847 if (result != 0) {
3848 ipr_trace;
3849 return result;
3850 }
3851 }
3852
3853 if (len % bsize_elem) {
45711f1a
JA		 3854 struct page *page = sg_page(&scatterlist[i]);
3855
3856 kaddr = kmap(page);
1da177e4 3857 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3858 kunmap(page);
1da177e4
LT		 3859
3860 scatterlist[i].length = len % bsize_elem;
3861 }
3862
3863 sglist->buffer_len = len;
3864 return result;
3865}
3866
a32c055f
WB		 3867/**
3868 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3869 * @ipr_cmd: ipr command struct
3870 * @sglist: scatter/gather list
3871 *
3872 * Builds a microcode download IOA data list (IOADL).
3873 *
3874 **/
3875static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3876 struct ipr_sglist *sglist)
3877{
3878 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3879 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3880 struct scatterlist *scatterlist = sglist->scatterlist;
3881 int i;
3882
3883 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3884 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3885 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3886
3887 ioarcb->ioadl_len =
3888 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3889 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3890 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3891 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3892 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3893 }
3894
3895 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3896}
3897
1da177e4 3898/**
12baa420 3899 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3900 * @ipr_cmd: ipr command struct
3901 * @sglist: scatter/gather list
1da177e4 3902 *
12baa420 3903 * Builds a microcode download IOA data list (IOADL).
1da177e4 3904 *
1da177e4 3905 **/
12baa420
BK		 3906static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3907 struct ipr_sglist *sglist)
1da177e4 3908{
1da177e4 3909 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3910 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3911 struct scatterlist *scatterlist = sglist->scatterlist;
3912 int i;
3913
12baa420 3914 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3915 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3916 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3917
3918 ioarcb->ioadl_len =
1da177e4
LT		 3919 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3920
3921 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3922 ioadl[i].flags_and_data_len =
3923 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3924 ioadl[i].address =
3925 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3926 }
3927
12baa420
BK		 3928 ioadl[i-1].flags_and_data_len |=
3929 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3930}
3931
3932/**
3933 * ipr_update_ioa_ucode - Update IOA's microcode
3934 * @ioa_cfg: ioa config struct
3935 * @sglist: scatter/gather list
3936 *
3937 * Initiate an adapter reset to update the IOA's microcode
3938 *
3939 * Return value:
3940 * 0 on success / -EIO on failure
3941 **/
3942static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3943 struct ipr_sglist *sglist)
3944{
3945 unsigned long lock_flags;
3946
3947 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3948 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3949 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3950 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3951 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3952 }
12baa420
BK		 3953
3954 if (ioa_cfg->ucode_sglist) {
3955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3956 dev_err(&ioa_cfg->pdev->dev,
3957 "Microcode download already in progress\n");
3958 return -EIO;
1da177e4 3959 }
12baa420 3960
d73341bf
AB		 3961 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3962 sglist->scatterlist, sglist->num_sg,
3963 DMA_TO_DEVICE);
12baa420
BK		 3964
3965 if (!sglist->num_dma_sg) {
3966 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3967 dev_err(&ioa_cfg->pdev->dev,
3968 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3969 return -EIO;
3970 }
3971
12baa420
BK		 3972 ioa_cfg->ucode_sglist = sglist;
3973 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3974 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3975 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3976
3977 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3978 ioa_cfg->ucode_sglist = NULL;
3979 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3980 return 0;
3981}
3982
3983/**
3984 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3985 * @class_dev: device struct
3986 * @buf: buffer
3987 * @count: buffer size
1da177e4
LT		 3988 *
3989 * This function will update the firmware on the adapter.
3990 *
3991 * Return value:
3992 * count on success / other on failure
3993 **/
ee959b00
TJ		 3994static ssize_t ipr_store_update_fw(struct device *dev,
3995 struct device_attribute *attr,
3996 const char *buf, size_t count)
1da177e4 3997{
ee959b00 3998 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3999 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4000 struct ipr_ucode_image_header *image_hdr;
4001 const struct firmware *fw_entry;
4002 struct ipr_sglist *sglist;
1da177e4
LT		 4003 char fname[100];
4004 char *src;
21b81716 4005 char *endline;
d63c7dd5 4006 int result, dnld_size;
1da177e4
LT		 4007
4008 if (!capable(CAP_SYS_ADMIN))
4009 return -EACCES;
4010
d63c7dd5 4011 snprintf(fname, sizeof(fname), "%s", buf);
1da177e4 4012
21b81716
GKB		 4013 endline = strchr(fname, '\n');
4014 if (endline)
4015 *endline = '\0';
4016
203fa3fe 4017 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 4018 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4019 return -EIO;
4020 }
4021
4022 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4023
1da177e4
LT		 4024 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4025 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4026 sglist = ipr_alloc_ucode_buffer(dnld_size);
4027
4028 if (!sglist) {
4029 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4030 release_firmware(fw_entry);
4031 return -ENOMEM;
4032 }
4033
4034 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4035
4036 if (result) {
4037 dev_err(&ioa_cfg->pdev->dev,
4038 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4039 goto out;
1da177e4
LT		 4040 }
4041
14ed9cc7
WB		 4042 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4043
12baa420 4044 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4045
12baa420
BK		 4046 if (!result)
4047 result = count;
4048out:
1da177e4
LT		 4049 ipr_free_ucode_buffer(sglist);
4050 release_firmware(fw_entry);
12baa420 4051 return result;
1da177e4
LT		 4052}
4053
ee959b00 4054static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4055 .attr = {
4056 .name = "update_fw",
4057 .mode = S_IWUSR,
4058 },
4059 .store = ipr_store_update_fw
4060};
4061
75576bb9
WB		 4062/**
4063 * ipr_show_fw_type - Show the adapter's firmware type.
4064 * @dev: class device struct
4065 * @buf: buffer
4066 *
4067 * Return value:
4068 * number of bytes printed to buffer
4069 **/
4070static ssize_t ipr_show_fw_type(struct device *dev,
4071 struct device_attribute *attr, char *buf)
4072{
4073 struct Scsi_Host *shost = class_to_shost(dev);
4074 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4075 unsigned long lock_flags = 0;
4076 int len;
4077
4078 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4079 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4080 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4081 return len;
4082}
4083
4084static struct device_attribute ipr_ioa_fw_type_attr = {
4085 .attr = {
4086 .name = "fw_type",
4087 .mode = S_IRUGO,
4088 },
4089 .show = ipr_show_fw_type
4090};
4091
ee959b00 4092static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4093 &ipr_fw_version_attr,
4094 &ipr_log_level_attr,
4095 &ipr_diagnostics_attr,
f37eb54b 4096 &ipr_ioa_state_attr,
1da177e4
LT		 4097 &ipr_ioa_reset_attr,
4098 &ipr_update_fw_attr,
75576bb9 4099 &ipr_ioa_fw_type_attr,
b53d124a 4100 &ipr_iopoll_weight_attr,
1da177e4
LT		 4101 NULL,
4102};
4103
4104#ifdef CONFIG_SCSI_IPR_DUMP
4105/**
4106 * ipr_read_dump - Dump the adapter
2c3c8bea 4107 * @filp: open sysfs file
1da177e4 4108 * @kobj: kobject struct
91a69029 4109 * @bin_attr: bin_attribute struct
1da177e4
LT		 4110 * @buf: buffer
4111 * @off: offset
4112 * @count: buffer size
4113 *
4114 * Return value:
4115 * number of bytes printed to buffer
4116 **/
2c3c8bea 4117static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4118 struct bin_attribute *bin_attr,
4119 char *buf, loff_t off, size_t count)
1da177e4 4120{
ee959b00 4121 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4122 struct Scsi_Host *shost = class_to_shost(cdev);
4123 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4124 struct ipr_dump *dump;
4125 unsigned long lock_flags = 0;
4126 char *src;
4d4dd706 4127 int len, sdt_end;
1da177e4
LT		 4128 size_t rc = count;
4129
4130 if (!capable(CAP_SYS_ADMIN))
4131 return -EACCES;
4132
4133 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4134 dump = ioa_cfg->dump;
4135
4136 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4137 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4138 return 0;
4139 }
4140 kref_get(&dump->kref);
4141 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4142
4143 if (off > dump->driver_dump.hdr.len) {
4144 kref_put(&dump->kref, ipr_release_dump);
4145 return 0;
4146 }
4147
4148 if (off + count > dump->driver_dump.hdr.len) {
4149 count = dump->driver_dump.hdr.len - off;
4150 rc = count;
4151 }
4152
4153 if (count && off < sizeof(dump->driver_dump)) {
4154 if (off + count > sizeof(dump->driver_dump))
4155 len = sizeof(dump->driver_dump) - off;
4156 else
4157 len = count;
4158 src = (u8 *)&dump->driver_dump + off;
4159 memcpy(buf, src, len);
4160 buf += len;
4161 off += len;
4162 count -= len;
4163 }
4164
4165 off -= sizeof(dump->driver_dump);
4166
4d4dd706
KSS		 4167 if (ioa_cfg->sis64)
4168 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4169 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4170 sizeof(struct ipr_sdt_entry));
4171 else
4172 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4173 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4174
4175 if (count && off < sdt_end) {
4176 if (off + count > sdt_end)
4177 len = sdt_end - off;
1da177e4
LT		 4178 else
4179 len = count;
4180 src = (u8 *)&dump->ioa_dump + off;
4181 memcpy(buf, src, len);
4182 buf += len;
4183 off += len;
4184 count -= len;
4185 }
4186
4d4dd706 4187 off -= sdt_end;
1da177e4
LT		 4188
4189 while (count) {
4190 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4191 len = PAGE_ALIGN(off) - off;
4192 else
4193 len = count;
4194 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4195 src += off & ~PAGE_MASK;
4196 memcpy(buf, src, len);
4197 buf += len;
4198 off += len;
4199 count -= len;
4200 }
4201
4202 kref_put(&dump->kref, ipr_release_dump);
4203 return rc;
4204}
4205
4206/**
4207 * ipr_alloc_dump - Prepare for adapter dump
4208 * @ioa_cfg: ioa config struct
4209 *
4210 * Return value:
4211 * 0 on success / other on failure
4212 **/
4213static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4214{
4215 struct ipr_dump *dump;
4d4dd706 4216 __be32 **ioa_data;
1da177e4
LT		 4217 unsigned long lock_flags = 0;
4218
0bc42e35 4219 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4220
4221 if (!dump) {
4222 ipr_err("Dump memory allocation failed\n");
4223 return -ENOMEM;
4224 }
4225
4d4dd706
KSS		 4226 if (ioa_cfg->sis64)
4227 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4228 else
4229 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4230
4231 if (!ioa_data) {
4232 ipr_err("Dump memory allocation failed\n");
4233 kfree(dump);
4234 return -ENOMEM;
4235 }
4236
4237 dump->ioa_dump.ioa_data = ioa_data;
4238
1da177e4
LT		 4239 kref_init(&dump->kref);
4240 dump->ioa_cfg = ioa_cfg;
4241
4242 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4243
4244 if (INACTIVE != ioa_cfg->sdt_state) {
4245 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4246 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4247 kfree(dump);
4248 return 0;
4249 }
4250
4251 ioa_cfg->dump = dump;
4252 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4253 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4254 ioa_cfg->dump_taken = 1;
4255 schedule_work(&ioa_cfg->work_q);
4256 }
4257 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4258
1da177e4
LT		 4259 return 0;
4260}
4261
4262/**
4263 * ipr_free_dump - Free adapter dump memory
4264 * @ioa_cfg: ioa config struct
4265 *
4266 * Return value:
4267 * 0 on success / other on failure
4268 **/
4269static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4270{
4271 struct ipr_dump *dump;
4272 unsigned long lock_flags = 0;
4273
4274 ENTER;
4275
4276 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4277 dump = ioa_cfg->dump;
4278 if (!dump) {
4279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4280 return 0;
4281 }
4282
4283 ioa_cfg->dump = NULL;
4284 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4285
4286 kref_put(&dump->kref, ipr_release_dump);
4287
4288 LEAVE;
4289 return 0;
4290}
4291
4292/**
4293 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4294 * @filp: open sysfs file
1da177e4 4295 * @kobj: kobject struct
91a69029 4296 * @bin_attr: bin_attribute struct
1da177e4
LT		 4297 * @buf: buffer
4298 * @off: offset
4299 * @count: buffer size
4300 *
4301 * Return value:
4302 * number of bytes printed to buffer
4303 **/
2c3c8bea 4304static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4305 struct bin_attribute *bin_attr,
4306 char *buf, loff_t off, size_t count)
1da177e4 4307{
ee959b00 4308 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4309 struct Scsi_Host *shost = class_to_shost(cdev);
4310 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4311 int rc;
4312
4313 if (!capable(CAP_SYS_ADMIN))
4314 return -EACCES;
4315
4316 if (buf[0] == '1')
4317 rc = ipr_alloc_dump(ioa_cfg);
4318 else if (buf[0] == '0')
4319 rc = ipr_free_dump(ioa_cfg);
4320 else
4321 return -EINVAL;
4322
4323 if (rc)
4324 return rc;
4325 else
4326 return count;
4327}
4328
4329static struct bin_attribute ipr_dump_attr = {
4330 .attr = {
4331 .name = "dump",
4332 .mode = S_IRUSR | S_IWUSR,
4333 },
4334 .size = 0,
4335 .read = ipr_read_dump,
4336 .write = ipr_write_dump
4337};
4338#else
4339static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4340#endif
4341
4342/**
4343 * ipr_change_queue_depth - Change the device's queue depth
4344 * @sdev: scsi device struct
4345 * @qdepth: depth to set
e881a172 4346 * @reason: calling context
1da177e4
LT		 4347 *
4348 * Return value:
4349 * actual depth set
4350 **/
db5ed4df 4351static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 4352{
35a39691
BK		 4353 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4354 struct ipr_resource_entry *res;
4355 unsigned long lock_flags = 0;
4356
4357 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4358 res = (struct ipr_resource_entry *)sdev->hostdata;
4359
4360 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4361 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4363
db5ed4df 4364 scsi_change_queue_depth(sdev, qdepth);
1da177e4
LT		 4365 return sdev->queue_depth;
4366}
4367
1da177e4
LT		 4368/**
4369 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4370 * @dev: device struct
46d74563 4371 * @attr: device attribute structure
1da177e4
LT		 4372 * @buf: buffer
4373 *
4374 * Return value:
4375 * number of bytes printed to buffer
4376 **/
10523b3b 4377static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4378{
4379 struct scsi_device *sdev = to_scsi_device(dev);
4380 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4381 struct ipr_resource_entry *res;
4382 unsigned long lock_flags = 0;
4383 ssize_t len = -ENXIO;
4384
4385 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4386 res = (struct ipr_resource_entry *)sdev->hostdata;
4387 if (res)
3e7ebdfa 4388 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4389 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4390 return len;
4391}
4392
4393static struct device_attribute ipr_adapter_handle_attr = {
4394 .attr = {
4395 .name = "adapter_handle",
4396 .mode = S_IRUSR,
4397 },
4398 .show = ipr_show_adapter_handle
4399};
4400
3e7ebdfa 4401/**
5adcbeb3
WB		 4402 * ipr_show_resource_path - Show the resource path or the resource address for
4403 * this device.
3e7ebdfa 4404 * @dev: device struct
46d74563 4405 * @attr: device attribute structure
3e7ebdfa
WB		 4406 * @buf: buffer
4407 *
4408 * Return value:
4409 * number of bytes printed to buffer
4410 **/
4411static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4412{
4413 struct scsi_device *sdev = to_scsi_device(dev);
4414 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4415 struct ipr_resource_entry *res;
4416 unsigned long lock_flags = 0;
4417 ssize_t len = -ENXIO;
4418 char buffer[IPR_MAX_RES_PATH_LENGTH];
4419
4420 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4421 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4422 if (res && ioa_cfg->sis64)
3e7ebdfa 4423 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4424 __ipr_format_res_path(res->res_path, buffer,
4425 sizeof(buffer)));
5adcbeb3
WB		 4426 else if (res)
4427 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4428 res->bus, res->target, res->lun);
4429
3e7ebdfa
WB		 4430 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4431 return len;
4432}
4433
4434static struct device_attribute ipr_resource_path_attr = {
4435 .attr = {
4436 .name = "resource_path",
75576bb9 4437 .mode = S_IRUGO,
3e7ebdfa
WB		 4438 },
4439 .show = ipr_show_resource_path
4440};
4441
46d74563
WB		 4442/**
4443 * ipr_show_device_id - Show the device_id for this device.
4444 * @dev: device struct
4445 * @attr: device attribute structure
4446 * @buf: buffer
4447 *
4448 * Return value:
4449 * number of bytes printed to buffer
4450 **/
4451static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4452{
4453 struct scsi_device *sdev = to_scsi_device(dev);
4454 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4455 struct ipr_resource_entry *res;
4456 unsigned long lock_flags = 0;
4457 ssize_t len = -ENXIO;
4458
4459 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4460 res = (struct ipr_resource_entry *)sdev->hostdata;
4461 if (res && ioa_cfg->sis64)
bb8647e8 4462 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
46d74563
WB		 4463 else if (res)
4464 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4465
4466 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4467 return len;
4468}
4469
4470static struct device_attribute ipr_device_id_attr = {
4471 .attr = {
4472 .name = "device_id",
4473 .mode = S_IRUGO,
4474 },
4475 .show = ipr_show_device_id
4476};
4477
75576bb9
WB		 4478/**
4479 * ipr_show_resource_type - Show the resource type for this device.
4480 * @dev: device struct
46d74563 4481 * @attr: device attribute structure
75576bb9
WB		 4482 * @buf: buffer
4483 *
4484 * Return value:
4485 * number of bytes printed to buffer
4486 **/
4487static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4488{
4489 struct scsi_device *sdev = to_scsi_device(dev);
4490 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4491 struct ipr_resource_entry *res;
4492 unsigned long lock_flags = 0;
4493 ssize_t len = -ENXIO;
4494
4495 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4496 res = (struct ipr_resource_entry *)sdev->hostdata;
4497
4498 if (res)
4499 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4500
4501 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4502 return len;
4503}
4504
4505static struct device_attribute ipr_resource_type_attr = {
4506 .attr = {
4507 .name = "resource_type",
4508 .mode = S_IRUGO,
4509 },
4510 .show = ipr_show_resource_type
4511};
4512
f8ee25d7
WX		 4513/**
4514 * ipr_show_raw_mode - Show the adapter's raw mode
4515 * @dev: class device struct
4516 * @buf: buffer
4517 *
4518 * Return value:
4519 * number of bytes printed to buffer
4520 **/
4521static ssize_t ipr_show_raw_mode(struct device *dev,
4522 struct device_attribute *attr, char *buf)
4523{
4524 struct scsi_device *sdev = to_scsi_device(dev);
4525 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4526 struct ipr_resource_entry *res;
4527 unsigned long lock_flags = 0;
4528 ssize_t len;
4529
4530 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4531 res = (struct ipr_resource_entry *)sdev->hostdata;
4532 if (res)
4533 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4534 else
4535 len = -ENXIO;
4536 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4537 return len;
4538}
4539
4540/**
4541 * ipr_store_raw_mode - Change the adapter's raw mode
4542 * @dev: class device struct
4543 * @buf: buffer
4544 *
4545 * Return value:
4546 * number of bytes printed to buffer
4547 **/
4548static ssize_t ipr_store_raw_mode(struct device *dev,
4549 struct device_attribute *attr,
4550 const char *buf, size_t count)
4551{
4552 struct scsi_device *sdev = to_scsi_device(dev);
4553 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4554 struct ipr_resource_entry *res;
4555 unsigned long lock_flags = 0;
4556 ssize_t len;
4557
4558 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4559 res = (struct ipr_resource_entry *)sdev->hostdata;
4560 if (res) {
e35d7f27 4561 if (ipr_is_af_dasd_device(res)) {
f8ee25d7
WX		 4562 res->raw_mode = simple_strtoul(buf, NULL, 10);
4563 len = strlen(buf);
4564 if (res->sdev)
4565 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4566 res->raw_mode ? "enabled" : "disabled");
4567 } else
4568 len = -EINVAL;
4569 } else
4570 len = -ENXIO;
4571 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4572 return len;
4573}
4574
4575static struct device_attribute ipr_raw_mode_attr = {
4576 .attr = {
4577 .name = "raw_mode",
4578 .mode = S_IRUGO | S_IWUSR,
4579 },
4580 .show = ipr_show_raw_mode,
4581 .store = ipr_store_raw_mode
4582};
4583
1da177e4
LT		 4584static struct device_attribute *ipr_dev_attrs[] = {
4585 &ipr_adapter_handle_attr,
3e7ebdfa 4586 &ipr_resource_path_attr,
46d74563 4587 &ipr_device_id_attr,
75576bb9 4588 &ipr_resource_type_attr,
f8ee25d7 4589 &ipr_raw_mode_attr,
1da177e4
LT		 4590 NULL,
4591};
4592
4593/**
4594 * ipr_biosparam - Return the HSC mapping
4595 * @sdev: scsi device struct
4596 * @block_device: block device pointer
4597 * @capacity: capacity of the device
4598 * @parm: Array containing returned HSC values.
4599 *
4600 * This function generates the HSC parms that fdisk uses.
4601 * We want to make sure we return something that places partitions
4602 * on 4k boundaries for best performance with the IOA.
4603 *
4604 * Return value:
4605 * 0 on success
4606 **/
4607static int ipr_biosparam(struct scsi_device *sdev,
4608 struct block_device *block_device,
4609 sector_t capacity, int *parm)
4610{
4611 int heads, sectors;
4612 sector_t cylinders;
4613
4614 heads = 128;
4615 sectors = 32;
4616
4617 cylinders = capacity;
4618 sector_div(cylinders, (128 * 32));
4619
4620 /* return result */
4621 parm[0] = heads;
4622 parm[1] = sectors;
4623 parm[2] = cylinders;
4624
4625 return 0;
4626}
4627
35a39691
BK		 4628/**
4629 * ipr_find_starget - Find target based on bus/target.
4630 * @starget: scsi target struct
4631 *
4632 * Return value:
4633 * resource entry pointer if found / NULL if not found
4634 **/
4635static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4636{
4637 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4638 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4639 struct ipr_resource_entry *res;
4640
4641 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4642 if ((res->bus == starget->channel) &&
0ee1d714 4643 (res->target == starget->id)) {
35a39691
BK		 4644 return res;
4645 }
4646 }
4647
4648 return NULL;
4649}
4650
4651static struct ata_port_info sata_port_info;
4652
4653/**
4654 * ipr_target_alloc - Prepare for commands to a SCSI target
4655 * @starget: scsi target struct
4656 *
4657 * If the device is a SATA device, this function allocates an
4658 * ATA port with libata, else it does nothing.
4659 *
4660 * Return value:
4661 * 0 on success / non-0 on failure
4662 **/
4663static int ipr_target_alloc(struct scsi_target *starget)
4664{
4665 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4666 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4667 struct ipr_sata_port *sata_port;
4668 struct ata_port *ap;
4669 struct ipr_resource_entry *res;
4670 unsigned long lock_flags;
4671
4672 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4673 res = ipr_find_starget(starget);
4674 starget->hostdata = NULL;
4675
4676 if (res && ipr_is_gata(res)) {
4677 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4678 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4679 if (!sata_port)
4680 return -ENOMEM;
4681
4682 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4683 if (ap) {
4684 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4685 sata_port->ioa_cfg = ioa_cfg;
4686 sata_port->ap = ap;
4687 sata_port->res = res;
4688
4689 res->sata_port = sata_port;
4690 ap->private_data = sata_port;
4691 starget->hostdata = sata_port;
4692 } else {
4693 kfree(sata_port);
4694 return -ENOMEM;
4695 }
4696 }
4697 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4698
4699 return 0;
4700}
4701
4702/**
4703 * ipr_target_destroy - Destroy a SCSI target
4704 * @starget: scsi target struct
4705 *
4706 * If the device was a SATA device, this function frees the libata
4707 * ATA port, else it does nothing.
4708 *
4709 **/
4710static void ipr_target_destroy(struct scsi_target *starget)
4711{
4712 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4713 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4714 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4715
4716 if (ioa_cfg->sis64) {
0ee1d714
BK		 4717 if (!ipr_find_starget(starget)) {
4718 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4719 clear_bit(starget->id, ioa_cfg->array_ids);
4720 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4721 clear_bit(starget->id, ioa_cfg->vset_ids);
4722 else if (starget->channel == 0)
4723 clear_bit(starget->id, ioa_cfg->target_ids);
4724 }
3e7ebdfa 4725 }
35a39691
BK		 4726
4727 if (sata_port) {
4728 starget->hostdata = NULL;
4729 ata_sas_port_destroy(sata_port->ap);
4730 kfree(sata_port);
4731 }
4732}
4733
4734/**
4735 * ipr_find_sdev - Find device based on bus/target/lun.
4736 * @sdev: scsi device struct
4737 *
4738 * Return value:
4739 * resource entry pointer if found / NULL if not found
4740 **/
4741static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4742{
4743 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4744 struct ipr_resource_entry *res;
4745
4746 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4747 if ((res->bus == sdev->channel) &&
4748 (res->target == sdev->id) &&
4749 (res->lun == sdev->lun))
35a39691
BK		 4750 return res;
4751 }
4752
4753 return NULL;
4754}
4755
1da177e4
LT		 4756/**
4757 * ipr_slave_destroy - Unconfigure a SCSI device
4758 * @sdev: scsi device struct
4759 *
4760 * Return value:
4761 * nothing
4762 **/
4763static void ipr_slave_destroy(struct scsi_device *sdev)
4764{
4765 struct ipr_resource_entry *res;
4766 struct ipr_ioa_cfg *ioa_cfg;
4767 unsigned long lock_flags = 0;
4768
4769 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4770
4771 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4772 res = (struct ipr_resource_entry *) sdev->hostdata;
4773 if (res) {
35a39691 4774 if (res->sata_port)
3e4ec344 4775 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4776 sdev->hostdata = NULL;
4777 res->sdev = NULL;
35a39691 4778 res->sata_port = NULL;
1da177e4
LT		 4779 }
4780 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4781}
4782
4783/**
4784 * ipr_slave_configure - Configure a SCSI device
4785 * @sdev: scsi device struct
4786 *
4787 * This function configures the specified scsi device.
4788 *
4789 * Return value:
4790 * 0 on success
4791 **/
4792static int ipr_slave_configure(struct scsi_device *sdev)
4793{
4794 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4795 struct ipr_resource_entry *res;
dd406ef8 4796 struct ata_port *ap = NULL;
1da177e4 4797 unsigned long lock_flags = 0;
3e7ebdfa 4798 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4799
4800 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4801 res = sdev->hostdata;
4802 if (res) {
4803 if (ipr_is_af_dasd_device(res))
4804 sdev->type = TYPE_RAID;
0726ce26 4805 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4806 sdev->scsi_level = 4;
0726ce26
BK		 4807 sdev->no_uld_attach = 1;
4808 }
1da177e4 4809 if (ipr_is_vset_device(res)) {
60654e25 4810 sdev->scsi_level = SCSI_SPC_3;
242f9dcb
JA		 4811 blk_queue_rq_timeout(sdev->request_queue,
4812 IPR_VSET_RW_TIMEOUT);
086fa5ff 4813 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4814 }
dd406ef8
BK		 4815 if (ipr_is_gata(res) && res->sata_port)
4816 ap = res->sata_port->ap;
4817 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4818
4819 if (ap) {
db5ed4df 4820 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4821 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4822 }
4823
3e7ebdfa
WB		 4824 if (ioa_cfg->sis64)
4825 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4826 ipr_format_res_path(ioa_cfg,
4827 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4828 return 0;
1da177e4
LT		 4829 }
4830 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4831 return 0;
4832}
4833
35a39691
BK		 4834/**
4835 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4836 * @sdev: scsi device struct
4837 *
4838 * This function initializes an ATA port so that future commands
4839 * sent through queuecommand will work.
4840 *
4841 * Return value:
4842 * 0 on success
4843 **/
4844static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4845{
4846 struct ipr_sata_port *sata_port = NULL;
4847 int rc = -ENXIO;
4848
4849 ENTER;
4850 if (sdev->sdev_target)
4851 sata_port = sdev->sdev_target->hostdata;
b2024459 4852 if (sata_port) {
35a39691 4853 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4854 if (rc == 0)
4855 rc = ata_sas_sync_probe(sata_port->ap);
4856 }
4857
35a39691
BK		 4858 if (rc)
4859 ipr_slave_destroy(sdev);
4860
4861 LEAVE;
4862 return rc;
4863}
4864
1da177e4
LT		 4865/**
4866 * ipr_slave_alloc - Prepare for commands to a device.
4867 * @sdev: scsi device struct
4868 *
4869 * This function saves a pointer to the resource entry
4870 * in the scsi device struct if the device exists. We
4871 * can then use this pointer in ipr_queuecommand when
4872 * handling new commands.
4873 *
4874 * Return value:
692aebfc 4875 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4876 **/
4877static int ipr_slave_alloc(struct scsi_device *sdev)
4878{
4879 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4880 struct ipr_resource_entry *res;
4881 unsigned long lock_flags;
692aebfc 4882 int rc = -ENXIO;
1da177e4
LT		 4883
4884 sdev->hostdata = NULL;
4885
4886 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4887
35a39691
BK		 4888 res = ipr_find_sdev(sdev);
4889 if (res) {
4890 res->sdev = sdev;
4891 res->add_to_ml = 0;
4892 res->in_erp = 0;
4893 sdev->hostdata = res;
4894 if (!ipr_is_naca_model(res))
4895 res->needs_sync_complete = 1;
4896 rc = 0;
4897 if (ipr_is_gata(res)) {
4898 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4899 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4900 }
4901 }
4902
4903 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4904
692aebfc 4905 return rc;
1da177e4
LT		 4906}
4907
6cdb0817
BK		 4908/**
4909 * ipr_match_lun - Match function for specified LUN
4910 * @ipr_cmd: ipr command struct
4911 * @device: device to match (sdev)
4912 *
4913 * Returns:
4914 * 1 if command matches sdev / 0 if command does not match sdev
4915 **/
4916static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4917{
4918 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4919 return 1;
4920 return 0;
4921}
4922
4923/**
4924 * ipr_wait_for_ops - Wait for matching commands to complete
4925 * @ipr_cmd: ipr command struct
4926 * @device: device to match (sdev)
4927 * @match: match function to use
4928 *
4929 * Returns:
4930 * SUCCESS / FAILED
4931 **/
4932static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4933 int (*match)(struct ipr_cmnd *, void *))
4934{
4935 struct ipr_cmnd *ipr_cmd;
4936 int wait;
4937 unsigned long flags;
4938 struct ipr_hrr_queue *hrrq;
4939 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4940 DECLARE_COMPLETION_ONSTACK(comp);
4941
4942 ENTER;
4943 do {
4944 wait = 0;
4945
4946 for_each_hrrq(hrrq, ioa_cfg) {
4947 spin_lock_irqsave(hrrq->lock, flags);
4948 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4949 if (match(ipr_cmd, device)) {
4950 ipr_cmd->eh_comp = &comp;
4951 wait++;
4952 }
4953 }
4954 spin_unlock_irqrestore(hrrq->lock, flags);
4955 }
4956
4957 if (wait) {
4958 timeout = wait_for_completion_timeout(&comp, timeout);
4959
4960 if (!timeout) {
4961 wait = 0;
4962
4963 for_each_hrrq(hrrq, ioa_cfg) {
4964 spin_lock_irqsave(hrrq->lock, flags);
4965 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4966 if (match(ipr_cmd, device)) {
4967 ipr_cmd->eh_comp = NULL;
4968 wait++;
4969 }
4970 }
4971 spin_unlock_irqrestore(hrrq->lock, flags);
4972 }
4973
4974 if (wait)
4975 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4976 LEAVE;
4977 return wait ? FAILED : SUCCESS;
4978 }
4979 }
4980 } while (wait);
4981
4982 LEAVE;
4983 return SUCCESS;
4984}
4985
70233ac5 4986static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4987{
4988 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4989 unsigned long lock_flags = 0;
4990 int rc = SUCCESS;
1da177e4
LT		 4991
4992 ENTER;
70233ac5 4993 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4994 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4995
96b04db9 4996 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4997 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4998 dev_err(&ioa_cfg->pdev->dev,
4999 "Adapter being reset as a result of error recovery.\n");
1da177e4 5000
a92fa25c
KSS		 5001 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5002 ioa_cfg->sdt_state = GET_DUMP;
5003 }
1da177e4 5004
70233ac5 5005 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5006 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5007 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 5008
70233ac5 5009 /* If we got hit with a host reset while we were already resetting
5010 the adapter for some reason, and the reset failed. */
5011 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5012 ipr_trace;
5013 rc = FAILED;
5014 }
df0ae249 5015
70233ac5 5016 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5017 LEAVE;
df0ae249
JG		 5018 return rc;
5019}
5020
c6513096
BK		 5021/**
5022 * ipr_device_reset - Reset the device
5023 * @ioa_cfg: ioa config struct
5024 * @res: resource entry struct
5025 *
5026 * This function issues a device reset to the affected device.
5027 * If the device is a SCSI device, a LUN reset will be sent
5028 * to the device first. If that does not work, a target reset
35a39691
BK		 5029 * will be sent. If the device is a SATA device, a PHY reset will
5030 * be sent.
c6513096
BK		 5031 *
5032 * Return value:
5033 * 0 on success / non-zero on failure
5034 **/
5035static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5036 struct ipr_resource_entry *res)
5037{
5038 struct ipr_cmnd *ipr_cmd;
5039 struct ipr_ioarcb *ioarcb;
5040 struct ipr_cmd_pkt *cmd_pkt;
35a39691 5041 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 5042 u32 ioasc;
5043
5044 ENTER;
5045 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5046 ioarcb = &ipr_cmd->ioarcb;
5047 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 5048
5049 if (ipr_cmd->ioa_cfg->sis64) {
5050 regs = &ipr_cmd->i.ata_ioadl.regs;
5051 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5052 } else
5053 regs = &ioarcb->u.add_data.u.regs;
c6513096 5054
3e7ebdfa 5055 ioarcb->res_handle = res->res_handle;
c6513096
BK		 5056 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5057 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 5058 if (ipr_is_gata(res)) {
5059 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 5060 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 5061 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5062 }
c6513096
BK		 5063
5064 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 5065 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 5066 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 5067 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5068 if (ipr_cmd->ioa_cfg->sis64)
5069 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5070 sizeof(struct ipr_ioasa_gata));
5071 else
5072 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5073 sizeof(struct ipr_ioasa_gata));
5074 }
c6513096
BK		 5075
5076 LEAVE;
203fa3fe 5077 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 5078}
5079
35a39691
BK		 5080/**
5081 * ipr_sata_reset - Reset the SATA port
cc0680a5 5082 * @link: SATA link to reset
35a39691
BK		 5083 * @classes: class of the attached device
5084 *
cc0680a5 5085 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 5086 *
5087 * Return value:
5088 * 0 on success / non-zero on failure
5089 **/
cc0680a5 5090static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 5091 unsigned long deadline)
35a39691 5092{
cc0680a5 5093 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 5094 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5095 struct ipr_resource_entry *res;
5096 unsigned long lock_flags = 0;
5097 int rc = -ENXIO;
5098
5099 ENTER;
5100 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 5101 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 5102 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5103 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5104 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5105 }
5106
35a39691
BK		 5107 res = sata_port->res;
5108 if (res) {
5109 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 5110 *classes = res->ata_class;
35a39691
BK		 5111 }
5112
5113 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5114 LEAVE;
5115 return rc;
5116}
5117
1da177e4
LT		 5118/**
5119 * ipr_eh_dev_reset - Reset the device
5120 * @scsi_cmd: scsi command struct
5121 *
5122 * This function issues a device reset to the affected device.
5123 * A LUN reset will be sent to the device first. If that does
5124 * not work, a target reset will be sent.
5125 *
5126 * Return value:
5127 * SUCCESS / FAILED
5128 **/
203fa3fe 5129static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5130{
5131 struct ipr_cmnd *ipr_cmd;
5132 struct ipr_ioa_cfg *ioa_cfg;
5133 struct ipr_resource_entry *res;
35a39691
BK		 5134 struct ata_port *ap;
5135 int rc = 0;
05a6538a 5136 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5137
5138 ENTER;
5139 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5140 res = scsi_cmd->device->hostdata;
5141
eeb88307 5142 if (!res)
1da177e4
LT		 5143 return FAILED;
5144
5145 /*
5146 * If we are currently going through reset/reload, return failed. This will force the
5147 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5148 * reset to complete
5149 */
5150 if (ioa_cfg->in_reset_reload)
5151 return FAILED;
56d6aa33 5152 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5153 return FAILED;
5154
05a6538a 5155 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5156 spin_lock(&hrrq->_lock);
05a6538a 5157 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5158 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5159 if (ipr_cmd->scsi_cmd)
5160 ipr_cmd->done = ipr_scsi_eh_done;
5161 if (ipr_cmd->qc)
5162 ipr_cmd->done = ipr_sata_eh_done;
5163 if (ipr_cmd->qc &&
5164 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5165 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5166 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5167 }
7402ecef 5168 }
1da177e4 5169 }
56d6aa33 5170 spin_unlock(&hrrq->_lock);
1da177e4 5171 }
1da177e4 5172 res->resetting_device = 1;
fb3ed3cb 5173 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5174
5175 if (ipr_is_gata(res) && res->sata_port) {
5176 ap = res->sata_port->ap;
5177 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5178 ata_std_error_handler(ap);
35a39691 5179 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5180
05a6538a 5181 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5182 spin_lock(&hrrq->_lock);
05a6538a 5183 list_for_each_entry(ipr_cmd,
5184 &hrrq->hrrq_pending_q, queue) {
5185 if (ipr_cmd->ioarcb.res_handle ==
5186 res->res_handle) {
5187 rc = -EIO;
5188 break;
5189 }
5af23d26 5190 }
56d6aa33 5191 spin_unlock(&hrrq->_lock);
5af23d26 5192 }
35a39691
BK		 5193 } else
5194 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5195 res->resetting_device = 0;
0b1f8d44 5196 res->reset_occurred = 1;
1da177e4 5197
1da177e4 5198 LEAVE;
203fa3fe 5199 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5200}
5201
203fa3fe 5202static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5203{
5204 int rc;
6cdb0817
BK		 5205 struct ipr_ioa_cfg *ioa_cfg;
5206
5207 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
94d0e7b8
JG		 5208
5209 spin_lock_irq(cmd->device->host->host_lock);
5210 rc = __ipr_eh_dev_reset(cmd);
5211 spin_unlock_irq(cmd->device->host->host_lock);
5212
6cdb0817
BK		 5213 if (rc == SUCCESS)
5214 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5215
94d0e7b8
JG		 5216 return rc;
5217}
5218
1da177e4
LT		 5219/**
5220 * ipr_bus_reset_done - Op done function for bus reset.
5221 * @ipr_cmd: ipr command struct
5222 *
5223 * This function is the op done function for a bus reset
5224 *
5225 * Return value:
5226 * none
5227 **/
5228static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5229{
5230 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5231 struct ipr_resource_entry *res;
5232
5233 ENTER;
3e7ebdfa
WB		 5234 if (!ioa_cfg->sis64)
5235 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5236 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5237 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5238 break;
5239 }
1da177e4 5240 }
1da177e4
LT		 5241
5242 /*
5243 * If abort has not completed, indicate the reset has, else call the
5244 * abort's done function to wake the sleeping eh thread
5245 */
5246 if (ipr_cmd->sibling->sibling)
5247 ipr_cmd->sibling->sibling = NULL;
5248 else
5249 ipr_cmd->sibling->done(ipr_cmd->sibling);
5250
05a6538a 5251 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5252 LEAVE;
5253}
5254
5255/**
5256 * ipr_abort_timeout - An abort task has timed out
5257 * @ipr_cmd: ipr command struct
5258 *
5259 * This function handles when an abort task times out. If this
5260 * happens we issue a bus reset since we have resources tied
5261 * up that must be freed before returning to the midlayer.
5262 *
5263 * Return value:
5264 * none
5265 **/
5266static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5267{
5268 struct ipr_cmnd *reset_cmd;
5269 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5270 struct ipr_cmd_pkt *cmd_pkt;
5271 unsigned long lock_flags = 0;
5272
5273 ENTER;
5274 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5275 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5277 return;
5278 }
5279
fb3ed3cb 5280 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5281 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5282 ipr_cmd->sibling = reset_cmd;
5283 reset_cmd->sibling = ipr_cmd;
5284 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5285 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5286 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5287 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5288 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5289
5290 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5291 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5292 LEAVE;
5293}
5294
5295/**
5296 * ipr_cancel_op - Cancel specified op
5297 * @scsi_cmd: scsi command struct
5298 *
5299 * This function cancels specified op.
5300 *
5301 * Return value:
5302 * SUCCESS / FAILED
5303 **/
203fa3fe 5304static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5305{
5306 struct ipr_cmnd *ipr_cmd;
5307 struct ipr_ioa_cfg *ioa_cfg;
5308 struct ipr_resource_entry *res;
5309 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5310 u32 ioasc, int_reg;
1da177e4 5311 int op_found = 0;
05a6538a 5312 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5313
5314 ENTER;
5315 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5316 res = scsi_cmd->device->hostdata;
5317
8fa728a2
JG		 5318 /* If we are currently going through reset/reload, return failed.
5319 * This will force the mid-layer to call ipr_eh_host_reset,
5320 * which will then go to sleep and wait for the reset to complete
5321 */
56d6aa33 5322 if (ioa_cfg->in_reset_reload ||
5323 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5324 return FAILED;
a92fa25c
KSS		 5325 if (!res)
5326 return FAILED;
5327
5328 /*
5329 * If we are aborting a timed out op, chances are that the timeout was caused
5330 * by a still not detected EEH error. In such cases, reading a register will
5331 * trigger the EEH recovery infrastructure.
5332 */
5333 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5334
5335 if (!ipr_is_gscsi(res))
1da177e4
LT		 5336 return FAILED;
5337
05a6538a 5338 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5339 spin_lock(&hrrq->_lock);
05a6538a 5340 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5341 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5342 ipr_cmd->done = ipr_scsi_eh_done;
5343 op_found = 1;
5344 break;
5345 }
1da177e4 5346 }
56d6aa33 5347 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5348 }
5349
5350 if (!op_found)
5351 return SUCCESS;
5352
5353 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5354 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5355 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5356 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5357 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5358 ipr_cmd->u.sdev = scsi_cmd->device;
5359
fb3ed3cb
BK		 5360 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5361 scsi_cmd->cmnd[0]);
1da177e4 5362 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5363 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5364
5365 /*
5366 * If the abort task timed out and we sent a bus reset, we will get
5367 * one the following responses to the abort
5368 */
5369 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5370 ioasc = 0;
5371 ipr_trace;
5372 }
5373
c4ee22a3 5374 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa
BK		 5375 if (!ipr_is_naca_model(res))
5376 res->needs_sync_complete = 1;
1da177e4
LT		 5377
5378 LEAVE;
203fa3fe 5379 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5380}
5381
5382/**
5383 * ipr_eh_abort - Abort a single op
5384 * @scsi_cmd: scsi command struct
5385 *
5386 * Return value:
f688f96d
BK		 5387 * 0 if scan in progress / 1 if scan is complete
5388 **/
5389static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5390{
5391 unsigned long lock_flags;
5392 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5393 int rc = 0;
5394
5395 spin_lock_irqsave(shost->host_lock, lock_flags);
5396 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5397 rc = 1;
5398 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5399 rc = 1;
5400 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5401 return rc;
5402}
5403
5404/**
5405 * ipr_eh_host_reset - Reset the host adapter
5406 * @scsi_cmd: scsi command struct
5407 *
5408 * Return value:
1da177e4
LT		 5409 * SUCCESS / FAILED
5410 **/
203fa3fe 5411static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5412{
8fa728a2
JG		 5413 unsigned long flags;
5414 int rc;
6cdb0817 5415 struct ipr_ioa_cfg *ioa_cfg;
1da177e4
LT		 5416
5417 ENTER;
1da177e4 5418
6cdb0817
BK		 5419 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5420
8fa728a2
JG		 5421 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5422 rc = ipr_cancel_op(scsi_cmd);
5423 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4 5424
6cdb0817
BK		 5425 if (rc == SUCCESS)
5426 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
1da177e4 5427 LEAVE;
8fa728a2 5428 return rc;
1da177e4
LT		 5429}
5430
5431/**
5432 * ipr_handle_other_interrupt - Handle "other" interrupts
5433 * @ioa_cfg: ioa config struct
634651fa 5434 * @int_reg: interrupt register
1da177e4
LT		 5435 *
5436 * Return value:
5437 * IRQ_NONE / IRQ_HANDLED
5438 **/
634651fa 5439static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5440 u32 int_reg)
1da177e4
LT		 5441{
5442 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5443 u32 int_mask_reg;
56d6aa33 5444
7dacb64f
WB		 5445 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5446 int_reg &= ~int_mask_reg;
5447
5448 /* If an interrupt on the adapter did not occur, ignore it.
5449 * Or in the case of SIS 64, check for a stage change interrupt.
5450 */
5451 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5452 if (ioa_cfg->sis64) {
5453 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5454 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5455 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5456
5457 /* clear stage change */
5458 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5459 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5460 list_del(&ioa_cfg->reset_cmd->queue);
5461 del_timer(&ioa_cfg->reset_cmd->timer);
5462 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5463 return IRQ_HANDLED;
5464 }
5465 }
5466
5467 return IRQ_NONE;
5468 }
1da177e4
LT		 5469
5470 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5471 /* Mask the interrupt */
5472 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 5473 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5474
5475 list_del(&ioa_cfg->reset_cmd->queue);
5476 del_timer(&ioa_cfg->reset_cmd->timer);
5477 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5478 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5479 if (ioa_cfg->clear_isr) {
5480 if (ipr_debug && printk_ratelimit())
5481 dev_err(&ioa_cfg->pdev->dev,
5482 "Spurious interrupt detected. 0x%08X\n", int_reg);
5483 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5484 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5485 return IRQ_NONE;
5486 }
1da177e4
LT		 5487 } else {
5488 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5489 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5490 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5491 dev_err(&ioa_cfg->pdev->dev,
5492 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5493 else
5494 dev_err(&ioa_cfg->pdev->dev,
5495 "Permanent IOA failure. 0x%08X\n", int_reg);
5496
5497 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5498 ioa_cfg->sdt_state = GET_DUMP;
5499
5500 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5501 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5502 }
56d6aa33 5503
1da177e4
LT		 5504 return rc;
5505}
5506
3feeb89d
WB		 5507/**
5508 * ipr_isr_eh - Interrupt service routine error handler
5509 * @ioa_cfg: ioa config struct
5510 * @msg: message to log
5511 *
5512 * Return value:
5513 * none
5514 **/
05a6538a 5515static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5516{
5517 ioa_cfg->errors_logged++;
05a6538a 5518 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5519
5520 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5521 ioa_cfg->sdt_state = GET_DUMP;
5522
5523 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5524}
5525
b53d124a 5526static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5527 struct list_head *doneq)
5528{
5529 u32 ioasc;
5530 u16 cmd_index;
5531 struct ipr_cmnd *ipr_cmd;
5532 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5533 int num_hrrq = 0;
5534
5535 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5536 if (!hrr_queue->allow_interrupts)
05a6538a 5537 return 0;
5538
5539 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5540 hrr_queue->toggle_bit) {
5541
5542 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5543 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5544 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5545
5546 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5547 cmd_index < hrr_queue->min_cmd_id)) {
5548 ipr_isr_eh(ioa_cfg,
5549 "Invalid response handle from IOA: ",
5550 cmd_index);
5551 break;
5552 }
5553
5554 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5555 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5556
5557 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5558
5559 list_move_tail(&ipr_cmd->queue, doneq);
5560
5561 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5562 hrr_queue->hrrq_curr++;
5563 } else {
5564 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5565 hrr_queue->toggle_bit ^= 1u;
5566 }
5567 num_hrrq++;
b53d124a 5568 if (budget > 0 && num_hrrq >= budget)
5569 break;
05a6538a 5570 }
b53d124a 5571
05a6538a 5572 return num_hrrq;
5573}
b53d124a 5574
511cbce2 5575static int ipr_iopoll(struct irq_poll *iop, int budget)
b53d124a 5576{
5577 struct ipr_ioa_cfg *ioa_cfg;
5578 struct ipr_hrr_queue *hrrq;
5579 struct ipr_cmnd *ipr_cmd, *temp;
5580 unsigned long hrrq_flags;
5581 int completed_ops;
5582 LIST_HEAD(doneq);
5583
5584 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5585 ioa_cfg = hrrq->ioa_cfg;
5586
5587 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5588 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5589
5590 if (completed_ops < budget)
511cbce2 5591 irq_poll_complete(iop);
b53d124a 5592 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5593
5594 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5595 list_del(&ipr_cmd->queue);
5596 del_timer(&ipr_cmd->timer);
5597 ipr_cmd->fast_done(ipr_cmd);
5598 }
5599
5600 return completed_ops;
5601}
5602
1da177e4
LT		 5603/**
5604 * ipr_isr - Interrupt service routine
5605 * @irq: irq number
5606 * @devp: pointer to ioa config struct
1da177e4
LT		 5607 *
5608 * Return value:
5609 * IRQ_NONE / IRQ_HANDLED
5610 **/
7d12e780 5611static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5612{
05a6538a 5613 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5614 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5615 unsigned long hrrq_flags = 0;
7dacb64f 5616 u32 int_reg = 0;
3feeb89d 5617 int num_hrrq = 0;
7dacb64f 5618 int irq_none = 0;
172cd6e1 5619 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5620 irqreturn_t rc = IRQ_NONE;
172cd6e1 5621 LIST_HEAD(doneq);
1da177e4 5622
56d6aa33 5623 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5624 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5625 if (!hrrq->allow_interrupts) {
5626 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5627 return IRQ_NONE;
5628 }
5629
1da177e4 5630 while (1) {
b53d124a 5631 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5632 rc = IRQ_HANDLED;
1da177e4 5633
b53d124a 5634 if (!ioa_cfg->clear_isr)
5635 break;
7dd21308 5636
1da177e4 5637 /* Clear the PCI interrupt */
a5442ba4 5638 num_hrrq = 0;
3feeb89d 5639 do {
b53d124a 5640 writel(IPR_PCII_HRRQ_UPDATED,
5641 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5642 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5643 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5644 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5645
7dacb64f
WB		 5646 } else if (rc == IRQ_NONE && irq_none == 0) {
5647 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5648 irq_none++;
a5442ba4
WB		 5649 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5650 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5651 ipr_isr_eh(ioa_cfg,
5652 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5653 rc = IRQ_HANDLED;
b53d124a 5654 break;
1da177e4
LT		 5655 } else
5656 break;
5657 }
5658
5659 if (unlikely(rc == IRQ_NONE))
634651fa 5660 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5661
56d6aa33 5662 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5663 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5664 list_del(&ipr_cmd->queue);
5665 del_timer(&ipr_cmd->timer);
5666 ipr_cmd->fast_done(ipr_cmd);
5667 }
05a6538a 5668 return rc;
5669}
5670
5671/**
5672 * ipr_isr_mhrrq - Interrupt service routine
5673 * @irq: irq number
5674 * @devp: pointer to ioa config struct
5675 *
5676 * Return value:
5677 * IRQ_NONE / IRQ_HANDLED
5678 **/
5679static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5680{
5681 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5682 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5683 unsigned long hrrq_flags = 0;
05a6538a 5684 struct ipr_cmnd *ipr_cmd, *temp;
5685 irqreturn_t rc = IRQ_NONE;
5686 LIST_HEAD(doneq);
172cd6e1 5687
56d6aa33 5688 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5689
5690 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5691 if (!hrrq->allow_interrupts) {
5692 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5693 return IRQ_NONE;
5694 }
5695
89f8b33c 5696 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5697 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5698 hrrq->toggle_bit) {
ea51190c 5699 irq_poll_sched(&hrrq->iopoll);
b53d124a 5700 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5701 return IRQ_HANDLED;
5702 }
5703 } else {
5704 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5705 hrrq->toggle_bit)
05a6538a 5706
b53d124a 5707 if (ipr_process_hrrq(hrrq, -1, &doneq))
5708 rc = IRQ_HANDLED;
5709 }
05a6538a 5710
56d6aa33 5711 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5712
5713 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5714 list_del(&ipr_cmd->queue);
5715 del_timer(&ipr_cmd->timer);
5716 ipr_cmd->fast_done(ipr_cmd);
5717 }
1da177e4
LT		 5718 return rc;
5719}
5720
a32c055f
WB		 5721/**
5722 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5723 * @ioa_cfg: ioa config struct
5724 * @ipr_cmd: ipr command struct
5725 *
5726 * Return value:
5727 * 0 on success / -1 on failure
5728 **/
5729static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5730 struct ipr_cmnd *ipr_cmd)
5731{
5732 int i, nseg;
5733 struct scatterlist *sg;
5734 u32 length;
5735 u32 ioadl_flags = 0;
5736 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5737 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5738 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5739
5740 length = scsi_bufflen(scsi_cmd);
5741 if (!length)
5742 return 0;
5743
5744 nseg = scsi_dma_map(scsi_cmd);
5745 if (nseg < 0) {
51f52a47 5746 if (printk_ratelimit())
d73341bf 5747 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5748 return -1;
5749 }
5750
5751 ipr_cmd->dma_use_sg = nseg;
5752
438b0331 5753 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5754 ioarcb->ioadl_len =
5755 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5756
a32c055f
WB		 5757 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5758 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5759 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5760 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5761 ioadl_flags = IPR_IOADL_FLAGS_READ;
5762
5763 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5764 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5765 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5766 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5767 }
5768
5769 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5770 return 0;
5771}
5772
1da177e4
LT		 5773/**
5774 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5775 * @ioa_cfg: ioa config struct
5776 * @ipr_cmd: ipr command struct
5777 *
5778 * Return value:
5779 * 0 on success / -1 on failure
5780 **/
5781static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5782 struct ipr_cmnd *ipr_cmd)
5783{
63015bc9
FT		 5784 int i, nseg;
5785 struct scatterlist *sg;
1da177e4
LT		 5786 u32 length;
5787 u32 ioadl_flags = 0;
5788 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5789 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5790 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5791
63015bc9
FT		 5792 length = scsi_bufflen(scsi_cmd);
5793 if (!length)
1da177e4
LT		 5794 return 0;
5795
63015bc9
FT		 5796 nseg = scsi_dma_map(scsi_cmd);
5797 if (nseg < 0) {
d73341bf 5798 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5799 return -1;
5800 }
51b1c7e1 5801
63015bc9
FT		 5802 ipr_cmd->dma_use_sg = nseg;
5803
5804 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5805 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5806 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5807 ioarcb->data_transfer_length = cpu_to_be32(length);
5808 ioarcb->ioadl_len =
63015bc9
FT		 5809 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5810 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5811 ioadl_flags = IPR_IOADL_FLAGS_READ;
5812 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5813 ioarcb->read_ioadl_len =
5814 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5815 }
1da177e4 5816
a32c055f
WB		 5817 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5818 ioadl = ioarcb->u.add_data.u.ioadl;
5819 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5820 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5821 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5822 }
1da177e4 5823
63015bc9
FT		 5824 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5825 ioadl[i].flags_and_data_len =
5826 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5827 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5828 }
5829
63015bc9
FT		 5830 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5831 return 0;
1da177e4
LT		 5832}
5833
1da177e4
LT		 5834/**
5835 * ipr_erp_done - Process completion of ERP for a device
5836 * @ipr_cmd: ipr command struct
5837 *
5838 * This function copies the sense buffer into the scsi_cmd
5839 * struct and pushes the scsi_done function.
5840 *
5841 * Return value:
5842 * nothing
5843 **/
5844static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5845{
5846 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5847 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5848 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5849
5850 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5851 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5852 scmd_printk(KERN_ERR, scsi_cmd,
5853 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5854 } else {
5855 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5856 SCSI_SENSE_BUFFERSIZE);
5857 }
5858
5859 if (res) {
ee0a90fa
BK		 5860 if (!ipr_is_naca_model(res))
5861 res->needs_sync_complete = 1;
1da177e4
LT		 5862 res->in_erp = 0;
5863 }
63015bc9 5864 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5865 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5866 scsi_cmd->scsi_done(scsi_cmd);
5867}
5868
5869/**
5870 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5871 * @ipr_cmd: ipr command struct
5872 *
5873 * Return value:
5874 * none
5875 **/
5876static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5877{
51b1c7e1 5878 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5879 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5880 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5881
5882 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5883 ioarcb->data_transfer_length = 0;
1da177e4 5884 ioarcb->read_data_transfer_length = 0;
a32c055f 5885 ioarcb->ioadl_len = 0;
1da177e4 5886 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5887 ioasa->hdr.ioasc = 0;
5888 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5889
5890 if (ipr_cmd->ioa_cfg->sis64)
5891 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5892 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5893 else {
5894 ioarcb->write_ioadl_addr =
5895 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5896 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5897 }
1da177e4
LT		 5898}
5899
5900/**
5901 * ipr_erp_request_sense - Send request sense to a device
5902 * @ipr_cmd: ipr command struct
5903 *
5904 * This function sends a request sense to a device as a result
5905 * of a check condition.
5906 *
5907 * Return value:
5908 * nothing
5909 **/
5910static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5911{
5912 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5913 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5914
5915 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5916 ipr_erp_done(ipr_cmd);
5917 return;
5918 }
5919
5920 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5921
5922 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5923 cmd_pkt->cdb[0] = REQUEST_SENSE;
5924 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5925 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5926 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5927 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5928
a32c055f
WB		 5929 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5930 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5931
5932 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5933 IPR_REQUEST_SENSE_TIMEOUT * 2);
5934}
5935
5936/**
5937 * ipr_erp_cancel_all - Send cancel all to a device
5938 * @ipr_cmd: ipr command struct
5939 *
5940 * This function sends a cancel all to a device to clear the
5941 * queue. If we are running TCQ on the device, QERR is set to 1,
5942 * which means all outstanding ops have been dropped on the floor.
5943 * Cancel all will return them to us.
5944 *
5945 * Return value:
5946 * nothing
5947 **/
5948static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5949{
5950 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5951 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5952 struct ipr_cmd_pkt *cmd_pkt;
5953
5954 res->in_erp = 1;
5955
5956 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5957
17ea0126 5958 if (!scsi_cmd->device->simple_tags) {
1da177e4
LT		 5959 ipr_erp_request_sense(ipr_cmd);
5960 return;
5961 }
5962
5963 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5964 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5965 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5966
5967 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5968 IPR_CANCEL_ALL_TIMEOUT);
5969}
5970
5971/**
5972 * ipr_dump_ioasa - Dump contents of IOASA
5973 * @ioa_cfg: ioa config struct
5974 * @ipr_cmd: ipr command struct
fe964d0a 5975 * @res: resource entry struct
1da177e4
LT		 5976 *
5977 * This function is invoked by the interrupt handler when ops
5978 * fail. It will log the IOASA if appropriate. Only called
5979 * for GPDD ops.
5980 *
5981 * Return value:
5982 * none
5983 **/
5984static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5985 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5986{
5987 int i;
5988 u16 data_len;
b0692dd4 5989 u32 ioasc, fd_ioasc;
96d21f00 5990 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5991 __be32 *ioasa_data = (__be32 *)ioasa;
5992 int error_index;
5993
96d21f00
WB		 5994 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5995 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5996
5997 if (0 == ioasc)
5998 return;
5999
6000 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6001 return;
6002
b0692dd4
BK		 6003 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6004 error_index = ipr_get_error(fd_ioasc);
6005 else
6006 error_index = ipr_get_error(ioasc);
1da177e4
LT		 6007
6008 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6009 /* Don't log an error if the IOA already logged one */
96d21f00 6010 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 6011 return;
6012
cc9bd5d4
BK		 6013 if (!ipr_is_gscsi(res))
6014 return;
6015
1da177e4
LT		 6016 if (ipr_error_table[error_index].log_ioasa == 0)
6017 return;
6018 }
6019
fe964d0a 6020 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 6021
96d21f00
WB		 6022 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6023 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6024 data_len = sizeof(struct ipr_ioasa64);
6025 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 6026 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 6027
6028 ipr_err("IOASA Dump:\n");
6029
6030 for (i = 0; i < data_len / 4; i += 4) {
6031 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6032 be32_to_cpu(ioasa_data[i]),
6033 be32_to_cpu(ioasa_data[i+1]),
6034 be32_to_cpu(ioasa_data[i+2]),
6035 be32_to_cpu(ioasa_data[i+3]));
6036 }
6037}
6038
6039/**
6040 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6041 * @ioasa: IOASA
6042 * @sense_buf: sense data buffer
6043 *
6044 * Return value:
6045 * none
6046 **/
6047static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6048{
6049 u32 failing_lba;
6050 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6051 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 6052 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6053 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 6054
6055 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6056
6057 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6058 return;
6059
6060 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6061
6062 if (ipr_is_vset_device(res) &&
6063 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6064 ioasa->u.vset.failing_lba_hi != 0) {
6065 sense_buf[0] = 0x72;
6066 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6067 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6068 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6069
6070 sense_buf[7] = 12;
6071 sense_buf[8] = 0;
6072 sense_buf[9] = 0x0A;
6073 sense_buf[10] = 0x80;
6074
6075 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6076
6077 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6078 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6079 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6080 sense_buf[15] = failing_lba & 0x000000ff;
6081
6082 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6083
6084 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6085 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6086 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6087 sense_buf[19] = failing_lba & 0x000000ff;
6088 } else {
6089 sense_buf[0] = 0x70;
6090 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6091 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6092 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6093
6094 /* Illegal request */
6095 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 6096 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 6097 sense_buf[7] = 10; /* additional length */
6098
6099 /* IOARCB was in error */
6100 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6101 sense_buf[15] = 0xC0;
6102 else /* Parameter data was invalid */
6103 sense_buf[15] = 0x80;
6104
6105 sense_buf[16] =
6106 ((IPR_FIELD_POINTER_MASK &
96d21f00 6107 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 6108 sense_buf[17] =
6109 (IPR_FIELD_POINTER_MASK &
96d21f00 6110 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 6111 } else {
6112 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6113 if (ipr_is_vset_device(res))
6114 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6115 else
6116 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6117
6118 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6119 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6120 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6121 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6122 sense_buf[6] = failing_lba & 0x000000ff;
6123 }
6124
6125 sense_buf[7] = 6; /* additional length */
6126 }
6127 }
6128}
6129
ee0a90fa
BK		 6130/**
6131 * ipr_get_autosense - Copy autosense data to sense buffer
6132 * @ipr_cmd: ipr command struct
6133 *
6134 * This function copies the autosense buffer to the buffer
6135 * in the scsi_cmd, if there is autosense available.
6136 *
6137 * Return value:
6138 * 1 if autosense was available / 0 if not
6139 **/
6140static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6141{
96d21f00
WB		 6142 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6143 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 6144
96d21f00 6145 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 6146 return 0;
6147
96d21f00
WB		 6148 if (ipr_cmd->ioa_cfg->sis64)
6149 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6150 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6151 SCSI_SENSE_BUFFERSIZE));
6152 else
6153 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6154 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6155 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 6156 return 1;
6157}
6158
1da177e4
LT		 6159/**
6160 * ipr_erp_start - Process an error response for a SCSI op
6161 * @ioa_cfg: ioa config struct
6162 * @ipr_cmd: ipr command struct
6163 *
6164 * This function determines whether or not to initiate ERP
6165 * on the affected device.
6166 *
6167 * Return value:
6168 * nothing
6169 **/
6170static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6171 struct ipr_cmnd *ipr_cmd)
6172{
6173 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6174 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6175 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6176 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6177
6178 if (!res) {
6179 ipr_scsi_eh_done(ipr_cmd);
6180 return;
6181 }
6182
8a048994 6183 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6184 ipr_gen_sense(ipr_cmd);
6185
cc9bd5d4
BK		 6186 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6187
8a048994 6188 switch (masked_ioasc) {
1da177e4 6189 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 6190 if (ipr_is_naca_model(res))
6191 scsi_cmd->result |= (DID_ABORT << 16);
6192 else
6193 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6194 break;
6195 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6196 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6197 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6198 break;
6199 case IPR_IOASC_HW_SEL_TIMEOUT:
6200 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 6201 if (!ipr_is_naca_model(res))
6202 res->needs_sync_complete = 1;
1da177e4
LT		 6203 break;
6204 case IPR_IOASC_SYNC_REQUIRED:
6205 if (!res->in_erp)
6206 res->needs_sync_complete = 1;
6207 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6208 break;
6209 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6210 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6211 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6212 break;
6213 case IPR_IOASC_BUS_WAS_RESET:
6214 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6215 /*
6216 * Report the bus reset and ask for a retry. The device
6217 * will give CC/UA the next command.
6218 */
6219 if (!res->resetting_device)
6220 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6221 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 6222 if (!ipr_is_naca_model(res))
6223 res->needs_sync_complete = 1;
1da177e4
LT		 6224 break;
6225 case IPR_IOASC_HW_DEV_BUS_STATUS:
6226 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6227 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 6228 if (!ipr_get_autosense(ipr_cmd)) {
6229 if (!ipr_is_naca_model(res)) {
6230 ipr_erp_cancel_all(ipr_cmd);
6231 return;
6232 }
6233 }
1da177e4 6234 }
ee0a90fa
BK		 6235 if (!ipr_is_naca_model(res))
6236 res->needs_sync_complete = 1;
1da177e4
LT		 6237 break;
6238 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6239 break;
f8ee25d7
WX		 6240 case IPR_IOASC_IR_NON_OPTIMIZED:
6241 if (res->raw_mode) {
6242 res->raw_mode = 0;
6243 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6244 } else
6245 scsi_cmd->result |= (DID_ERROR << 16);
6246 break;
1da177e4 6247 default:
5b7304fb
BK		 6248 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6249 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6250 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6251 res->needs_sync_complete = 1;
6252 break;
6253 }
6254
63015bc9 6255 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6256 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6257 scsi_cmd->scsi_done(scsi_cmd);
6258}
6259
6260/**
6261 * ipr_scsi_done - mid-layer done function
6262 * @ipr_cmd: ipr command struct
6263 *
6264 * This function is invoked by the interrupt handler for
6265 * ops generated by the SCSI mid-layer
6266 *
6267 * Return value:
6268 * none
6269 **/
6270static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6271{
6272 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6273 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6274 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
36b8e180 6275 unsigned long lock_flags;
1da177e4 6276
96d21f00 6277 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6278
6279 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6280 scsi_dma_unmap(scsi_cmd);
6281
36b8e180 6282 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
05a6538a 6283 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6284 scsi_cmd->scsi_done(scsi_cmd);
36b8e180 6285 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
172cd6e1 6286 } else {
36b8e180
BK		 6287 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6288 spin_lock(&ipr_cmd->hrrq->_lock);
1da177e4 6289 ipr_erp_start(ioa_cfg, ipr_cmd);
36b8e180
BK		 6290 spin_unlock(&ipr_cmd->hrrq->_lock);
6291 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
172cd6e1 6292 }
1da177e4
LT		 6293}
6294
1da177e4
LT		 6295/**
6296 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6297 * @shost: scsi host struct
1da177e4 6298 * @scsi_cmd: scsi command struct
1da177e4
LT		 6299 *
6300 * This function queues a request generated by the mid-layer.
6301 *
6302 * Return value:
6303 * 0 on success
6304 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6305 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6306 **/
00bfef2c
BK		 6307static int ipr_queuecommand(struct Scsi_Host *shost,
6308 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6309{
6310 struct ipr_ioa_cfg *ioa_cfg;
6311 struct ipr_resource_entry *res;
6312 struct ipr_ioarcb *ioarcb;
6313 struct ipr_cmnd *ipr_cmd;
56d6aa33 6314 unsigned long hrrq_flags, lock_flags;
d12f1576 6315 int rc;
05a6538a 6316 struct ipr_hrr_queue *hrrq;
6317 int hrrq_id;
1da177e4 6318
00bfef2c
BK		 6319 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6320
1da177e4 6321 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6322 res = scsi_cmd->device->hostdata;
56d6aa33 6323
6324 if (ipr_is_gata(res) && res->sata_port) {
6325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6326 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6327 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6328 return rc;
6329 }
6330
05a6538a 6331 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6332 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6333
56d6aa33 6334 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6335 /*
6336 * We are currently blocking all devices due to a host reset
6337 * We have told the host to stop giving us new requests, but
6338 * ERP ops don't count. FIXME
6339 */
bfae7820 6340 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6341 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6342 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6343 }
1da177e4
LT		 6344
6345 /*
6346 * FIXME - Create scsi_set_host_offline interface
6347 * and the ioa_is_dead check can be removed
6348 */
bfae7820 6349 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6350 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6351 goto err_nodev;
1da177e4
LT		 6352 }
6353
05a6538a 6354 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6355 if (ipr_cmd == NULL) {
56d6aa33 6356 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6357 return SCSI_MLQUEUE_HOST_BUSY;
6358 }
56d6aa33 6359 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6360
172cd6e1 6361 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6362 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6363
6364 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6365 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6366 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4 6367
4f92d01a 6368 if (ipr_is_gscsi(res)) {
1da177e4
LT		 6369 if (scsi_cmd->underflow == 0)
6370 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6371
4f92d01a 6372 if (res->reset_occurred) {
0b1f8d44 6373 res->reset_occurred = 0;
ab6c10b1 6374 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6375 }
4f92d01a
GKB		 6376 }
6377
6378 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6379 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6380
1da177e4 6381 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6382 if (scsi_cmd->flags & SCMD_TAGGED)
6383 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6384 else
6385 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6386 }
6387
6388 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6389 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6390 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6391 }
3cb4fc1f 6392 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
f8ee25d7 6393 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
1da177e4 6394
3cb4fc1f
GKB		 6395 if (scsi_cmd->underflow == 0)
6396 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6397 }
6398
d12f1576
DC		 6399 if (ioa_cfg->sis64)
6400 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6401 else
6402 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6403
56d6aa33 6404 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6405 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6406 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6407 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6408 if (!rc)
6409 scsi_dma_unmap(scsi_cmd);
a5fb407e 6410 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6411 }
6412
56d6aa33 6413 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6414 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6415 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6416 scsi_dma_unmap(scsi_cmd);
6417 goto err_nodev;
6418 }
6419
6420 ioarcb->res_handle = res->res_handle;
6421 if (res->needs_sync_complete) {
6422 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6423 res->needs_sync_complete = 0;
6424 }
05a6538a 6425 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6426 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6427 ipr_send_command(ipr_cmd);
56d6aa33 6428 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6429 return 0;
1da177e4 6430
00bfef2c 6431err_nodev:
56d6aa33 6432 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6433 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6434 scsi_cmd->result = (DID_NO_CONNECT << 16);
6435 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6436 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6437 return 0;
6438}
f281233d 6439
35a39691
BK		 6440/**
6441 * ipr_ioctl - IOCTL handler
6442 * @sdev: scsi device struct
6443 * @cmd: IOCTL cmd
6444 * @arg: IOCTL arg
6445 *
6446 * Return value:
6447 * 0 on success / other on failure
6448 **/
bd705f2d 6449static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6450{
6451 struct ipr_resource_entry *res;
6452
6453 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6454 if (res && ipr_is_gata(res)) {
6455 if (cmd == HDIO_GET_IDENTITY)
6456 return -ENOTTY;
94be9a58 6457 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6458 }
35a39691
BK		 6459
6460 return -EINVAL;
6461}
6462
1da177e4
LT		 6463/**
6464 * ipr_info - Get information about the card/driver
6465 * @scsi_host: scsi host struct
6466 *
6467 * Return value:
6468 * pointer to buffer with description string
6469 **/
203fa3fe 6470static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6471{
6472 static char buffer[512];
6473 struct ipr_ioa_cfg *ioa_cfg;
6474 unsigned long lock_flags = 0;
6475
6476 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6477
6478 spin_lock_irqsave(host->host_lock, lock_flags);
6479 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6480 spin_unlock_irqrestore(host->host_lock, lock_flags);
6481
6482 return buffer;
6483}
6484
6485static struct scsi_host_template driver_template = {
6486 .module = THIS_MODULE,
6487 .name = "IPR",
6488 .info = ipr_ioa_info,
35a39691 6489 .ioctl = ipr_ioctl,
1da177e4
LT		 6490 .queuecommand = ipr_queuecommand,
6491 .eh_abort_handler = ipr_eh_abort,
6492 .eh_device_reset_handler = ipr_eh_dev_reset,
6493 .eh_host_reset_handler = ipr_eh_host_reset,
6494 .slave_alloc = ipr_slave_alloc,
6495 .slave_configure = ipr_slave_configure,
6496 .slave_destroy = ipr_slave_destroy,
f688f96d 6497 .scan_finished = ipr_scan_finished,
35a39691
BK		 6498 .target_alloc = ipr_target_alloc,
6499 .target_destroy = ipr_target_destroy,
1da177e4 6500 .change_queue_depth = ipr_change_queue_depth,
1da177e4
LT		 6501 .bios_param = ipr_biosparam,
6502 .can_queue = IPR_MAX_COMMANDS,
6503 .this_id = -1,
6504 .sg_tablesize = IPR_MAX_SGLIST,
6505 .max_sectors = IPR_IOA_MAX_SECTORS,
6506 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6507 .use_clustering = ENABLE_CLUSTERING,
6508 .shost_attrs = ipr_ioa_attrs,
6509 .sdev_attrs = ipr_dev_attrs,
54b2b50c 6510 .proc_name = IPR_NAME,
1da177e4
LT		 6511};
6512
35a39691
BK		 6513/**
6514 * ipr_ata_phy_reset - libata phy_reset handler
6515 * @ap: ata port to reset
6516 *
6517 **/
6518static void ipr_ata_phy_reset(struct ata_port *ap)
6519{
6520 unsigned long flags;
6521 struct ipr_sata_port *sata_port = ap->private_data;
6522 struct ipr_resource_entry *res = sata_port->res;
6523 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6524 int rc;
6525
6526 ENTER;
6527 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6528 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6529 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6530 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6531 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6532 }
6533
56d6aa33 6534 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6535 goto out_unlock;
6536
6537 rc = ipr_device_reset(ioa_cfg, res);
6538
6539 if (rc) {
3e4ec344 6540 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6541 goto out_unlock;
6542 }
6543
3e7ebdfa
WB		 6544 ap->link.device[0].class = res->ata_class;
6545 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6546 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6547
6548out_unlock:
6549 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6550 LEAVE;
6551}
6552
6553/**
6554 * ipr_ata_post_internal - Cleanup after an internal command
6555 * @qc: ATA queued command
6556 *
6557 * Return value:
6558 * none
6559 **/
6560static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6561{
6562 struct ipr_sata_port *sata_port = qc->ap->private_data;
6563 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6564 struct ipr_cmnd *ipr_cmd;
05a6538a 6565 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6566 unsigned long flags;
6567
6568 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6569 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6570 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6571 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6572 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6573 }
6574
05a6538a 6575 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6576 spin_lock(&hrrq->_lock);
05a6538a 6577 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6578 if (ipr_cmd->qc == qc) {
6579 ipr_device_reset(ioa_cfg, sata_port->res);
6580 break;
6581 }
35a39691 6582 }
56d6aa33 6583 spin_unlock(&hrrq->_lock);
35a39691
BK		 6584 }
6585 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6586}
6587
35a39691
BK		 6588/**
6589 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6590 * @regs: destination
6591 * @tf: source ATA taskfile
6592 *
6593 * Return value:
6594 * none
6595 **/
6596static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6597 struct ata_taskfile *tf)
6598{
6599 regs->feature = tf->feature;
6600 regs->nsect = tf->nsect;
6601 regs->lbal = tf->lbal;
6602 regs->lbam = tf->lbam;
6603 regs->lbah = tf->lbah;
6604 regs->device = tf->device;
6605 regs->command = tf->command;
6606 regs->hob_feature = tf->hob_feature;
6607 regs->hob_nsect = tf->hob_nsect;
6608 regs->hob_lbal = tf->hob_lbal;
6609 regs->hob_lbam = tf->hob_lbam;
6610 regs->hob_lbah = tf->hob_lbah;
6611 regs->ctl = tf->ctl;
6612}
6613
6614/**
6615 * ipr_sata_done - done function for SATA commands
6616 * @ipr_cmd: ipr command struct
6617 *
6618 * This function is invoked by the interrupt handler for
6619 * ops generated by the SCSI mid-layer to SATA devices
6620 *
6621 * Return value:
6622 * none
6623 **/
6624static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6625{
6626 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6627 struct ata_queued_cmd *qc = ipr_cmd->qc;
6628 struct ipr_sata_port *sata_port = qc->ap->private_data;
6629 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6630 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6631
56d6aa33 6632 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6633 if (ipr_cmd->ioa_cfg->sis64)
6634 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6635 sizeof(struct ipr_ioasa_gata));
6636 else
6637 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6638 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6639 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6640
96d21f00 6641 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6642 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6643
6644 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6645 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6646 else
96d21f00 6647 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6648 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6649 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6650 ata_qc_complete(qc);
6651}
6652
a32c055f
WB		 6653/**
6654 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6655 * @ipr_cmd: ipr command struct
6656 * @qc: ATA queued command
6657 *
6658 **/
6659static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6660 struct ata_queued_cmd *qc)
6661{
6662 u32 ioadl_flags = 0;
6663 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6664 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6665 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6666 int len = qc->nbytes;
6667 struct scatterlist *sg;
6668 unsigned int si;
6669 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6670
6671 if (len == 0)
6672 return;
6673
6674 if (qc->dma_dir == DMA_TO_DEVICE) {
6675 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6676 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6677 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6678 ioadl_flags = IPR_IOADL_FLAGS_READ;
6679
6680 ioarcb->data_transfer_length = cpu_to_be32(len);
6681 ioarcb->ioadl_len =
6682 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6683 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6684 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6685
6686 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6687 ioadl64->flags = cpu_to_be32(ioadl_flags);
6688 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6689 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6690
6691 last_ioadl64 = ioadl64;
6692 ioadl64++;
6693 }
6694
6695 if (likely(last_ioadl64))
6696 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6697}
6698
35a39691
BK		 6699/**
6700 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6701 * @ipr_cmd: ipr command struct
6702 * @qc: ATA queued command
6703 *
6704 **/
6705static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6706 struct ata_queued_cmd *qc)
6707{
6708 u32 ioadl_flags = 0;
6709 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6710 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6711 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6712 int len = qc->nbytes;
35a39691 6713 struct scatterlist *sg;
ff2aeb1e 6714 unsigned int si;
35a39691
BK		 6715
6716 if (len == 0)
6717 return;
6718
6719 if (qc->dma_dir == DMA_TO_DEVICE) {
6720 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6721 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6722 ioarcb->data_transfer_length = cpu_to_be32(len);
6723 ioarcb->ioadl_len =
35a39691
BK		 6724 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6725 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6726 ioadl_flags = IPR_IOADL_FLAGS_READ;
6727 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6728 ioarcb->read_ioadl_len =
6729 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6730 }
6731
ff2aeb1e 6732 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6733 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6734 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6735
6736 last_ioadl = ioadl;
6737 ioadl++;
35a39691 6738 }
3be6cbd7
JG		 6739
6740 if (likely(last_ioadl))
6741 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6742}
6743
56d6aa33 6744/**
6745 * ipr_qc_defer - Get a free ipr_cmd
6746 * @qc: queued command
6747 *
6748 * Return value:
6749 * 0 if success
6750 **/
6751static int ipr_qc_defer(struct ata_queued_cmd *qc)
6752{
6753 struct ata_port *ap = qc->ap;
6754 struct ipr_sata_port *sata_port = ap->private_data;
6755 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6756 struct ipr_cmnd *ipr_cmd;
6757 struct ipr_hrr_queue *hrrq;
6758 int hrrq_id;
6759
6760 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6761 hrrq = &ioa_cfg->hrrq[hrrq_id];
6762
6763 qc->lldd_task = NULL;
6764 spin_lock(&hrrq->_lock);
6765 if (unlikely(hrrq->ioa_is_dead)) {
6766 spin_unlock(&hrrq->_lock);
6767 return 0;
6768 }
6769
6770 if (unlikely(!hrrq->allow_cmds)) {
6771 spin_unlock(&hrrq->_lock);
6772 return ATA_DEFER_LINK;
6773 }
6774
6775 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6776 if (ipr_cmd == NULL) {
6777 spin_unlock(&hrrq->_lock);
6778 return ATA_DEFER_LINK;
6779 }
6780
6781 qc->lldd_task = ipr_cmd;
6782 spin_unlock(&hrrq->_lock);
6783 return 0;
6784}
6785
35a39691
BK		 6786/**
6787 * ipr_qc_issue - Issue a SATA qc to a device
6788 * @qc: queued command
6789 *
6790 * Return value:
6791 * 0 if success
6792 **/
6793static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6794{
6795 struct ata_port *ap = qc->ap;
6796 struct ipr_sata_port *sata_port = ap->private_data;
6797 struct ipr_resource_entry *res = sata_port->res;
6798 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6799 struct ipr_cmnd *ipr_cmd;
6800 struct ipr_ioarcb *ioarcb;
6801 struct ipr_ioarcb_ata_regs *regs;
6802
56d6aa33 6803 if (qc->lldd_task == NULL)
6804 ipr_qc_defer(qc);
6805
6806 ipr_cmd = qc->lldd_task;
6807 if (ipr_cmd == NULL)
0feeed82 6808 return AC_ERR_SYSTEM;
35a39691 6809
56d6aa33 6810 qc->lldd_task = NULL;
6811 spin_lock(&ipr_cmd->hrrq->_lock);
6812 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6813 ipr_cmd->hrrq->ioa_is_dead)) {
6814 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6815 spin_unlock(&ipr_cmd->hrrq->_lock);
6816 return AC_ERR_SYSTEM;
6817 }
6818
05a6538a 6819 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6820 ioarcb = &ipr_cmd->ioarcb;
35a39691 6821
a32c055f
WB		 6822 if (ioa_cfg->sis64) {
6823 regs = &ipr_cmd->i.ata_ioadl.regs;
6824 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6825 } else
6826 regs = &ioarcb->u.add_data.u.regs;
6827
6828 memset(regs, 0, sizeof(*regs));
6829 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6830
56d6aa33 6831 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6832 ipr_cmd->qc = qc;
6833 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6834 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6835 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6836 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6837 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6838 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6839
a32c055f
WB		 6840 if (ioa_cfg->sis64)
6841 ipr_build_ata_ioadl64(ipr_cmd, qc);
6842 else
6843 ipr_build_ata_ioadl(ipr_cmd, qc);
6844
35a39691
BK		 6845 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6846 ipr_copy_sata_tf(regs, &qc->tf);
6847 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6848 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6849
6850 switch (qc->tf.protocol) {
6851 case ATA_PROT_NODATA:
6852 case ATA_PROT_PIO:
6853 break;
6854
6855 case ATA_PROT_DMA:
6856 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6857 break;
6858
0dc36888
TH		 6859 case ATAPI_PROT_PIO:
6860 case ATAPI_PROT_NODATA:
35a39691
BK		 6861 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6862 break;
6863
0dc36888 6864 case ATAPI_PROT_DMA:
35a39691
BK		 6865 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6866 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6867 break;
6868
6869 default:
6870 WARN_ON(1);
56d6aa33 6871 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6872 return AC_ERR_INVALID;
35a39691
BK		 6873 }
6874
a32c055f 6875 ipr_send_command(ipr_cmd);
56d6aa33 6876 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6877
35a39691
BK		 6878 return 0;
6879}
6880
4c9bf4e7
TH		 6881/**
6882 * ipr_qc_fill_rtf - Read result TF
6883 * @qc: ATA queued command
6884 *
6885 * Return value:
6886 * true
6887 **/
6888static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6889{
6890 struct ipr_sata_port *sata_port = qc->ap->private_data;
6891 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6892 struct ata_taskfile *tf = &qc->result_tf;
6893
6894 tf->feature = g->error;
6895 tf->nsect = g->nsect;
6896 tf->lbal = g->lbal;
6897 tf->lbam = g->lbam;
6898 tf->lbah = g->lbah;
6899 tf->device = g->device;
6900 tf->command = g->status;
6901 tf->hob_nsect = g->hob_nsect;
6902 tf->hob_lbal = g->hob_lbal;
6903 tf->hob_lbam = g->hob_lbam;
6904 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6905
6906 return true;
6907}
6908
35a39691 6909static struct ata_port_operations ipr_sata_ops = {
35a39691 6910 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6911 .hardreset = ipr_sata_reset,
35a39691 6912 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6913 .qc_prep = ata_noop_qc_prep,
56d6aa33 6914 .qc_defer = ipr_qc_defer,
35a39691 6915 .qc_issue = ipr_qc_issue,
4c9bf4e7 6916 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6917 .port_start = ata_sas_port_start,
6918 .port_stop = ata_sas_port_stop
6919};
6920
6921static struct ata_port_info sata_port_info = {
5067c046
SL		 6922 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6923 ATA_FLAG_SAS_HOST,
0f2e0330
SS		 6924 .pio_mask = ATA_PIO4_ONLY,
6925 .mwdma_mask = ATA_MWDMA2,
6926 .udma_mask = ATA_UDMA6,
35a39691
BK		 6927 .port_ops = &ipr_sata_ops
6928};
6929
1da177e4
LT		 6930#ifdef CONFIG_PPC_PSERIES
6931static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6932 PVR_NORTHSTAR,
6933 PVR_PULSAR,
6934 PVR_POWER4,
6935 PVR_ICESTAR,
6936 PVR_SSTAR,
6937 PVR_POWER4p,
6938 PVR_630,
6939 PVR_630p
1da177e4
LT		 6940};
6941
6942/**
6943 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6944 * @ioa_cfg: ioa cfg struct
6945 *
6946 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6947 * certain pSeries hardware. This function determines if the given
6948 * adapter is in one of these confgurations or not.
6949 *
6950 * Return value:
6951 * 1 if adapter is not supported / 0 if adapter is supported
6952 **/
6953static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6954{
1da177e4
LT		 6955 int i;
6956
44c10138 6957 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6958 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6959 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6960 return 1;
1da177e4
LT		 6961 }
6962 }
6963 return 0;
6964}
6965#else
6966#define ipr_invalid_adapter(ioa_cfg) 0
6967#endif
6968
6969/**
6970 * ipr_ioa_bringdown_done - IOA bring down completion.
6971 * @ipr_cmd: ipr command struct
6972 *
6973 * This function processes the completion of an adapter bring down.
6974 * It wakes any reset sleepers.
6975 *
6976 * Return value:
6977 * IPR_RC_JOB_RETURN
6978 **/
6979static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6980{
6981 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6982 int i;
1da177e4
LT		 6983
6984 ENTER;
bfae7820
BK		 6985 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6986 ipr_trace;
6987 spin_unlock_irq(ioa_cfg->host->host_lock);
6988 scsi_unblock_requests(ioa_cfg->host);
6989 spin_lock_irq(ioa_cfg->host->host_lock);
6990 }
6991
1da177e4
LT		 6992 ioa_cfg->in_reset_reload = 0;
6993 ioa_cfg->reset_retries = 0;
96b04db9 6994 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6995 spin_lock(&ioa_cfg->hrrq[i]._lock);
6996 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6997 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6998 }
6999 wmb();
7000
05a6538a 7001 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 7002 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 7003 LEAVE;
7004
7005 return IPR_RC_JOB_RETURN;
7006}
7007
7008/**
7009 * ipr_ioa_reset_done - IOA reset completion.
7010 * @ipr_cmd: ipr command struct
7011 *
7012 * This function processes the completion of an adapter reset.
7013 * It schedules any necessary mid-layer add/removes and
7014 * wakes any reset sleepers.
7015 *
7016 * Return value:
7017 * IPR_RC_JOB_RETURN
7018 **/
7019static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7020{
7021 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7022 struct ipr_resource_entry *res;
7023 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 7024 int i = 0, j;
1da177e4
LT		 7025
7026 ENTER;
7027 ioa_cfg->in_reset_reload = 0;
56d6aa33 7028 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7029 spin_lock(&ioa_cfg->hrrq[j]._lock);
7030 ioa_cfg->hrrq[j].allow_cmds = 1;
7031 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7032 }
7033 wmb();
1da177e4 7034 ioa_cfg->reset_cmd = NULL;
3d1d0da6 7035 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 7036
7037 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
f688f96d 7038 if (res->add_to_ml || res->del_from_ml) {
1da177e4
LT		 7039 ipr_trace;
7040 break;
7041 }
7042 }
7043 schedule_work(&ioa_cfg->work_q);
7044
7045 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7046 list_del(&hostrcb->queue);
7047 if (i++ < IPR_NUM_LOG_HCAMS)
7048 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7049 else
7050 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7051 }
7052
6bb04170 7053 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 7054 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7055
7056 ioa_cfg->reset_retries = 0;
05a6538a 7057 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 7058 wake_up_all(&ioa_cfg->reset_wait_q);
7059
30237853 7060 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 7061 scsi_unblock_requests(ioa_cfg->host);
30237853 7062 spin_lock(ioa_cfg->host->host_lock);
1da177e4 7063
56d6aa33 7064 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 7065 scsi_block_requests(ioa_cfg->host);
7066
f688f96d 7067 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 7068 LEAVE;
7069 return IPR_RC_JOB_RETURN;
7070}
7071
7072/**
7073 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7074 * @supported_dev: supported device struct
7075 * @vpids: vendor product id struct
7076 *
7077 * Return value:
7078 * none
7079 **/
7080static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7081 struct ipr_std_inq_vpids *vpids)
7082{
7083 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7084 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7085 supported_dev->num_records = 1;
7086 supported_dev->data_length =
7087 cpu_to_be16(sizeof(struct ipr_supported_device));
7088 supported_dev->reserved = 0;
7089}
7090
7091/**
7092 * ipr_set_supported_devs - Send Set Supported Devices for a device
7093 * @ipr_cmd: ipr command struct
7094 *
a32c055f 7095 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 7096 *
7097 * Return value:
7098 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7099 **/
7100static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7101{
7102 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7103 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 7104 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7105 struct ipr_resource_entry *res = ipr_cmd->u.res;
7106
7107 ipr_cmd->job_step = ipr_ioa_reset_done;
7108
7109 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 7110 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 7111 continue;
7112
7113 ipr_cmd->u.res = res;
3e7ebdfa 7114 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 7115
7116 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7117 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7118 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7119
7120 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 7121 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 7122 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7123 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7124
a32c055f
WB		 7125 ipr_init_ioadl(ipr_cmd,
7126 ioa_cfg->vpd_cbs_dma +
7127 offsetof(struct ipr_misc_cbs, supp_dev),
7128 sizeof(struct ipr_supported_device),
7129 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7130
7131 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7132 IPR_SET_SUP_DEVICE_TIMEOUT);
7133
3e7ebdfa
WB		 7134 if (!ioa_cfg->sis64)
7135 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 7136 LEAVE;
1da177e4
LT		 7137 return IPR_RC_JOB_RETURN;
7138 }
7139
05a6538a 7140 LEAVE;
1da177e4
LT		 7141 return IPR_RC_JOB_CONTINUE;
7142}
7143
7144/**
7145 * ipr_get_mode_page - Locate specified mode page
7146 * @mode_pages: mode page buffer
7147 * @page_code: page code to find
7148 * @len: minimum required length for mode page
7149 *
7150 * Return value:
7151 * pointer to mode page / NULL on failure
7152 **/
7153static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7154 u32 page_code, u32 len)
7155{
7156 struct ipr_mode_page_hdr *mode_hdr;
7157 u32 page_length;
7158 u32 length;
7159
7160 if (!mode_pages || (mode_pages->hdr.length == 0))
7161 return NULL;
7162
7163 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7164 mode_hdr = (struct ipr_mode_page_hdr *)
7165 (mode_pages->data + mode_pages->hdr.block_desc_len);
7166
7167 while (length) {
7168 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7169 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7170 return mode_hdr;
7171 break;
7172 } else {
7173 page_length = (sizeof(struct ipr_mode_page_hdr) +
7174 mode_hdr->page_length);
7175 length -= page_length;
7176 mode_hdr = (struct ipr_mode_page_hdr *)
7177 ((unsigned long)mode_hdr + page_length);
7178 }
7179 }
7180 return NULL;
7181}
7182
7183/**
7184 * ipr_check_term_power - Check for term power errors
7185 * @ioa_cfg: ioa config struct
7186 * @mode_pages: IOAFP mode pages buffer
7187 *
7188 * Check the IOAFP's mode page 28 for term power errors
7189 *
7190 * Return value:
7191 * nothing
7192 **/
7193static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7194 struct ipr_mode_pages *mode_pages)
7195{
7196 int i;
7197 int entry_length;
7198 struct ipr_dev_bus_entry *bus;
7199 struct ipr_mode_page28 *mode_page;
7200
7201 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7202 sizeof(struct ipr_mode_page28));
7203
7204 entry_length = mode_page->entry_length;
7205
7206 bus = mode_page->bus;
7207
7208 for (i = 0; i < mode_page->num_entries; i++) {
7209 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7210 dev_err(&ioa_cfg->pdev->dev,
7211 "Term power is absent on scsi bus %d\n",
7212 bus->res_addr.bus);
7213 }
7214
7215 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7216 }
7217}
7218
7219/**
7220 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7221 * @ioa_cfg: ioa config struct
7222 *
7223 * Looks through the config table checking for SES devices. If
7224 * the SES device is in the SES table indicating a maximum SCSI
7225 * bus speed, the speed is limited for the bus.
7226 *
7227 * Return value:
7228 * none
7229 **/
7230static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7231{
7232 u32 max_xfer_rate;
7233 int i;
7234
7235 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7236 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7237 ioa_cfg->bus_attr[i].bus_width);
7238
7239 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7240 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7241 }
7242}
7243
7244/**
7245 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7246 * @ioa_cfg: ioa config struct
7247 * @mode_pages: mode page 28 buffer
7248 *
7249 * Updates mode page 28 based on driver configuration
7250 *
7251 * Return value:
7252 * none
7253 **/
7254static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7255 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7256{
7257 int i, entry_length;
7258 struct ipr_dev_bus_entry *bus;
7259 struct ipr_bus_attributes *bus_attr;
7260 struct ipr_mode_page28 *mode_page;
7261
7262 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7263 sizeof(struct ipr_mode_page28));
7264
7265 entry_length = mode_page->entry_length;
7266
7267 /* Loop for each device bus entry */
7268 for (i = 0, bus = mode_page->bus;
7269 i < mode_page->num_entries;
7270 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7271 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7272 dev_err(&ioa_cfg->pdev->dev,
7273 "Invalid resource address reported: 0x%08X\n",
7274 IPR_GET_PHYS_LOC(bus->res_addr));
7275 continue;
7276 }
7277
7278 bus_attr = &ioa_cfg->bus_attr[i];
7279 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7280 bus->bus_width = bus_attr->bus_width;
7281 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7282 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7283 if (bus_attr->qas_enabled)
7284 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7285 else
7286 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7287 }
7288}
7289
7290/**
7291 * ipr_build_mode_select - Build a mode select command
7292 * @ipr_cmd: ipr command struct
7293 * @res_handle: resource handle to send command to
7294 * @parm: Byte 2 of Mode Sense command
7295 * @dma_addr: DMA buffer address
7296 * @xfer_len: data transfer length
7297 *
7298 * Return value:
7299 * none
7300 **/
7301static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7302 __be32 res_handle, u8 parm,
7303 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7304{
1da177e4
LT		 7305 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7306
7307 ioarcb->res_handle = res_handle;
7308 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7309 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7310 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7311 ioarcb->cmd_pkt.cdb[1] = parm;
7312 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7313
a32c055f 7314 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7315}
7316
7317/**
7318 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7319 * @ipr_cmd: ipr command struct
7320 *
7321 * This function sets up the SCSI bus attributes and sends
7322 * a Mode Select for Page 28 to activate them.
7323 *
7324 * Return value:
7325 * IPR_RC_JOB_RETURN
7326 **/
7327static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7328{
7329 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7330 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7331 int length;
7332
7333 ENTER;
4733804c
BK		 7334 ipr_scsi_bus_speed_limit(ioa_cfg);
7335 ipr_check_term_power(ioa_cfg, mode_pages);
7336 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7337 length = mode_pages->hdr.length + 1;
7338 mode_pages->hdr.length = 0;
1da177e4
LT		 7339
7340 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7341 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7342 length);
7343
f72919ec
WB		 7344 ipr_cmd->job_step = ipr_set_supported_devs;
7345 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7346 struct ipr_resource_entry, queue);
1da177e4
LT		 7347 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7348
7349 LEAVE;
7350 return IPR_RC_JOB_RETURN;
7351}
7352
7353/**
7354 * ipr_build_mode_sense - Builds a mode sense command
7355 * @ipr_cmd: ipr command struct
7356 * @res: resource entry struct
7357 * @parm: Byte 2 of mode sense command
7358 * @dma_addr: DMA address of mode sense buffer
7359 * @xfer_len: Size of DMA buffer
7360 *
7361 * Return value:
7362 * none
7363 **/
7364static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7365 __be32 res_handle,
a32c055f 7366 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7367{
1da177e4
LT		 7368 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7369
7370 ioarcb->res_handle = res_handle;
7371 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7372 ioarcb->cmd_pkt.cdb[2] = parm;
7373 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7374 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7375
a32c055f 7376 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7377}
7378
dfed823e
BK		 7379/**
7380 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7381 * @ipr_cmd: ipr command struct
7382 *
7383 * This function handles the failure of an IOA bringup command.
7384 *
7385 * Return value:
7386 * IPR_RC_JOB_RETURN
7387 **/
7388static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7389{
7390 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7391 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7392
7393 dev_err(&ioa_cfg->pdev->dev,
7394 "0x%02X failed with IOASC: 0x%08X\n",
7395 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7396
7397 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7398 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e
BK		 7399 return IPR_RC_JOB_RETURN;
7400}
7401
7402/**
7403 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7404 * @ipr_cmd: ipr command struct
7405 *
7406 * This function handles the failure of a Mode Sense to the IOAFP.
7407 * Some adapters do not handle all mode pages.
7408 *
7409 * Return value:
7410 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7411 **/
7412static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7413{
f72919ec 7414 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7415 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7416
7417 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7418 ipr_cmd->job_step = ipr_set_supported_devs;
7419 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7420 struct ipr_resource_entry, queue);
dfed823e
BK		 7421 return IPR_RC_JOB_CONTINUE;
7422 }
7423
7424 return ipr_reset_cmd_failed(ipr_cmd);
7425}
7426
1da177e4
LT		 7427/**
7428 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7429 * @ipr_cmd: ipr command struct
7430 *
7431 * This function send a Page 28 mode sense to the IOA to
7432 * retrieve SCSI bus attributes.
7433 *
7434 * Return value:
7435 * IPR_RC_JOB_RETURN
7436 **/
7437static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7438{
7439 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7440
7441 ENTER;
7442 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7443 0x28, ioa_cfg->vpd_cbs_dma +
7444 offsetof(struct ipr_misc_cbs, mode_pages),
7445 sizeof(struct ipr_mode_pages));
7446
7447 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7448 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7449
7450 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7451
7452 LEAVE;
7453 return IPR_RC_JOB_RETURN;
7454}
7455
ac09c349
BK		 7456/**
7457 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7458 * @ipr_cmd: ipr command struct
7459 *
7460 * This function enables dual IOA RAID support if possible.
7461 *
7462 * Return value:
7463 * IPR_RC_JOB_RETURN
7464 **/
7465static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7466{
7467 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7468 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7469 struct ipr_mode_page24 *mode_page;
7470 int length;
7471
7472 ENTER;
7473 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7474 sizeof(struct ipr_mode_page24));
7475
7476 if (mode_page)
7477 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7478
7479 length = mode_pages->hdr.length + 1;
7480 mode_pages->hdr.length = 0;
7481
7482 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7483 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7484 length);
7485
7486 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7487 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7488
7489 LEAVE;
7490 return IPR_RC_JOB_RETURN;
7491}
7492
7493/**
7494 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7495 * @ipr_cmd: ipr command struct
7496 *
7497 * This function handles the failure of a Mode Sense to the IOAFP.
7498 * Some adapters do not handle all mode pages.
7499 *
7500 * Return value:
7501 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7502 **/
7503static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7504{
96d21f00 7505 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7506
7507 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7508 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7509 return IPR_RC_JOB_CONTINUE;
7510 }
7511
7512 return ipr_reset_cmd_failed(ipr_cmd);
7513}
7514
7515/**
7516 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7517 * @ipr_cmd: ipr command struct
7518 *
7519 * This function send a mode sense to the IOA to retrieve
7520 * the IOA Advanced Function Control mode page.
7521 *
7522 * Return value:
7523 * IPR_RC_JOB_RETURN
7524 **/
7525static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7526{
7527 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7528
7529 ENTER;
7530 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7531 0x24, ioa_cfg->vpd_cbs_dma +
7532 offsetof(struct ipr_misc_cbs, mode_pages),
7533 sizeof(struct ipr_mode_pages));
7534
7535 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7536 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7537
7538 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7539
7540 LEAVE;
7541 return IPR_RC_JOB_RETURN;
7542}
7543
1da177e4
LT		 7544/**
7545 * ipr_init_res_table - Initialize the resource table
7546 * @ipr_cmd: ipr command struct
7547 *
7548 * This function looks through the existing resource table, comparing
7549 * it with the config table. This function will take care of old/new
7550 * devices and schedule adding/removing them from the mid-layer
7551 * as appropriate.
7552 *
7553 * Return value:
7554 * IPR_RC_JOB_CONTINUE
7555 **/
7556static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7557{
7558 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7559 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7560 struct ipr_config_table_entry_wrapper cfgtew;
7561 int entries, found, flag, i;
1da177e4
LT		 7562 LIST_HEAD(old_res);
7563
7564 ENTER;
3e7ebdfa
WB		 7565 if (ioa_cfg->sis64)
7566 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7567 else
7568 flag = ioa_cfg->u.cfg_table->hdr.flags;
7569
7570 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7571 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7572
7573 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7574 list_move_tail(&res->queue, &old_res);
7575
3e7ebdfa 7576 if (ioa_cfg->sis64)
438b0331 7577 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7578 else
7579 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7580
7581 for (i = 0; i < entries; i++) {
7582 if (ioa_cfg->sis64)
7583 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7584 else
7585 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7586 found = 0;
7587
7588 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7589 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7590 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7591 found = 1;
7592 break;
7593 }
7594 }
7595
7596 if (!found) {
7597 if (list_empty(&ioa_cfg->free_res_q)) {
7598 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7599 break;
7600 }
7601
7602 found = 1;
7603 res = list_entry(ioa_cfg->free_res_q.next,
7604 struct ipr_resource_entry, queue);
7605 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7606 ipr_init_res_entry(res, &cfgtew);
1da177e4 7607 res->add_to_ml = 1;
56115598
WB		 7608 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7609 res->sdev->allow_restart = 1;
1da177e4
LT		 7610
7611 if (found)
3e7ebdfa 7612 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7613 }
7614
7615 list_for_each_entry_safe(res, temp, &old_res, queue) {
7616 if (res->sdev) {
7617 res->del_from_ml = 1;
3e7ebdfa 7618 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7619 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7620 }
7621 }
7622
3e7ebdfa
WB		 7623 list_for_each_entry_safe(res, temp, &old_res, queue) {
7624 ipr_clear_res_target(res);
7625 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7626 }
7627
ac09c349
BK		 7628 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7629 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7630 else
7631 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7632
7633 LEAVE;
7634 return IPR_RC_JOB_CONTINUE;
7635}
7636
7637/**
7638 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7639 * @ipr_cmd: ipr command struct
7640 *
7641 * This function sends a Query IOA Configuration command
7642 * to the adapter to retrieve the IOA configuration table.
7643 *
7644 * Return value:
7645 * IPR_RC_JOB_RETURN
7646 **/
7647static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7648{
7649 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7650 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7651 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7652 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7653
7654 ENTER;
ac09c349
BK		 7655 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7656 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7657 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7658 ucode_vpd->major_release, ucode_vpd->card_type,
7659 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7660 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7661 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7662
7663 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7664 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7665 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7666 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7667
3e7ebdfa 7668 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7669 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7670
7671 ipr_cmd->job_step = ipr_init_res_table;
7672
7673 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7674
7675 LEAVE;
7676 return IPR_RC_JOB_RETURN;
7677}
7678
1a47af26
GKB		 7679static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7680{
7681 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7682
7683 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7684 return IPR_RC_JOB_CONTINUE;
7685
7686 return ipr_reset_cmd_failed(ipr_cmd);
7687}
7688
7689static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7690 __be32 res_handle, u8 sa_code)
7691{
7692 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7693
7694 ioarcb->res_handle = res_handle;
7695 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7696 ioarcb->cmd_pkt.cdb[1] = sa_code;
7697 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7698}
7699
7700/**
7701 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7702 * action
7703 *
7704 * Return value:
7705 * none
7706 **/
7707static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7708{
7709 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7710 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7711 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7712
7713 ENTER;
7714
7715 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7716
7717 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7718 ipr_build_ioa_service_action(ipr_cmd,
7719 cpu_to_be32(IPR_IOA_RES_HANDLE),
7720 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7721
7722 ioarcb->cmd_pkt.cdb[2] = 0x40;
7723
7724 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7725 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7726 IPR_SET_SUP_DEVICE_TIMEOUT);
7727
7728 LEAVE;
7729 return IPR_RC_JOB_RETURN;
7730 }
7731
7732 LEAVE;
7733 return IPR_RC_JOB_CONTINUE;
7734}
7735
1da177e4
LT		 7736/**
7737 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7738 * @ipr_cmd: ipr command struct
7739 *
7740 * This utility function sends an inquiry to the adapter.
7741 *
7742 * Return value:
7743 * none
7744 **/
7745static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7746 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7747{
7748 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7749
7750 ENTER;
7751 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7752 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7753
7754 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7755 ioarcb->cmd_pkt.cdb[1] = flags;
7756 ioarcb->cmd_pkt.cdb[2] = page;
7757 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7758
a32c055f 7759 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7760
7761 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7762 LEAVE;
7763}
7764
62275040
BK		 7765/**
7766 * ipr_inquiry_page_supported - Is the given inquiry page supported
7767 * @page0: inquiry page 0 buffer
7768 * @page: page code.
7769 *
7770 * This function determines if the specified inquiry page is supported.
7771 *
7772 * Return value:
7773 * 1 if page is supported / 0 if not
7774 **/
7775static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7776{
7777 int i;
7778
7779 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7780 if (page0->page[i] == page)
7781 return 1;
7782
7783 return 0;
7784}
7785
1021b3ff
GKB		 7786/**
7787 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
7788 * @ipr_cmd: ipr command struct
7789 *
7790 * This function sends a Page 0xC4 inquiry to the adapter
7791 * to retrieve software VPD information.
7792 *
7793 * Return value:
7794 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7795 **/
7796static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
7797{
7798 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7799 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7800 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7801
7802 ENTER;
1a47af26 7803 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
1021b3ff
GKB		 7804 memset(pageC4, 0, sizeof(*pageC4));
7805
7806 if (ipr_inquiry_page_supported(page0, 0xC4)) {
7807 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
7808 (ioa_cfg->vpd_cbs_dma
7809 + offsetof(struct ipr_misc_cbs,
7810 pageC4_data)),
7811 sizeof(struct ipr_inquiry_pageC4));
7812 return IPR_RC_JOB_RETURN;
7813 }
7814
7815 LEAVE;
7816 return IPR_RC_JOB_CONTINUE;
7817}
7818
ac09c349
BK		 7819/**
7820 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7821 * @ipr_cmd: ipr command struct
7822 *
7823 * This function sends a Page 0xD0 inquiry to the adapter
7824 * to retrieve adapter capabilities.
7825 *
7826 * Return value:
7827 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7828 **/
7829static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7830{
7831 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7832 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7833 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7834
7835 ENTER;
1021b3ff 7836 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
ac09c349
BK		 7837 memset(cap, 0, sizeof(*cap));
7838
7839 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7840 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7841 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7842 sizeof(struct ipr_inquiry_cap));
7843 return IPR_RC_JOB_RETURN;
7844 }
7845
7846 LEAVE;
7847 return IPR_RC_JOB_CONTINUE;
7848}
7849
1da177e4
LT		 7850/**
7851 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7852 * @ipr_cmd: ipr command struct
7853 *
7854 * This function sends a Page 3 inquiry to the adapter
7855 * to retrieve software VPD information.
7856 *
7857 * Return value:
7858 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7859 **/
7860static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7861{
7862 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7863
7864 ENTER;
7865
ac09c349 7866 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7867
7868 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7869 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7870 sizeof(struct ipr_inquiry_page3));
7871
7872 LEAVE;
7873 return IPR_RC_JOB_RETURN;
7874}
7875
7876/**
7877 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7878 * @ipr_cmd: ipr command struct
7879 *
7880 * This function sends a Page 0 inquiry to the adapter
7881 * to retrieve supported inquiry pages.
7882 *
7883 * Return value:
7884 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7885 **/
7886static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7887{
7888 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7889 char type[5];
7890
7891 ENTER;
7892
7893 /* Grab the type out of the VPD and store it away */
7894 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7895 type[4] = '\0';
7896 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7897
f688f96d
BK		 7898 if (ipr_invalid_adapter(ioa_cfg)) {
7899 dev_err(&ioa_cfg->pdev->dev,
7900 "Adapter not supported in this hardware configuration.\n");
7901
7902 if (!ipr_testmode) {
7903 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7904 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7905 list_add_tail(&ipr_cmd->queue,
7906 &ioa_cfg->hrrq->hrrq_free_q);
7907 return IPR_RC_JOB_RETURN;
7908 }
7909 }
7910
62275040 7911 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7912
62275040
BK		 7913 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7914 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7915 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7916
7917 LEAVE;
7918 return IPR_RC_JOB_RETURN;
7919}
7920
7921/**
7922 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7923 * @ipr_cmd: ipr command struct
7924 *
7925 * This function sends a standard inquiry to the adapter.
7926 *
7927 * Return value:
7928 * IPR_RC_JOB_RETURN
7929 **/
7930static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7931{
7932 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7933
7934 ENTER;
62275040 7935 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7936
7937 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7938 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7939 sizeof(struct ipr_ioa_vpd));
7940
7941 LEAVE;
7942 return IPR_RC_JOB_RETURN;
7943}
7944
7945/**
214777ba 7946 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7947 * @ipr_cmd: ipr command struct
7948 *
7949 * This function send an Identify Host Request Response Queue
7950 * command to establish the HRRQ with the adapter.
7951 *
7952 * Return value:
7953 * IPR_RC_JOB_RETURN
7954 **/
214777ba 7955static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7956{
7957 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7958 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7959 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7960
7961 ENTER;
05a6538a 7962 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7963 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7964
56d6aa33 7965 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7966 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7967
05a6538a 7968 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7969 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7970
05a6538a 7971 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7972 if (ioa_cfg->sis64)
7973 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7974
05a6538a 7975 if (ioa_cfg->nvectors == 1)
7976 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7977 else
7978 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7979
7980 ioarcb->cmd_pkt.cdb[2] =
7981 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7982 ioarcb->cmd_pkt.cdb[3] =
7983 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7984 ioarcb->cmd_pkt.cdb[4] =
7985 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7986 ioarcb->cmd_pkt.cdb[5] =
7987 ((u64) hrrq->host_rrq_dma) & 0xff;
7988 ioarcb->cmd_pkt.cdb[7] =
7989 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7990 ioarcb->cmd_pkt.cdb[8] =
7991 (sizeof(u32) * hrrq->size) & 0xff;
7992
7993 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7994 ioarcb->cmd_pkt.cdb[9] =
7995 ioa_cfg->identify_hrrq_index;
1da177e4 7996
05a6538a 7997 if (ioa_cfg->sis64) {
7998 ioarcb->cmd_pkt.cdb[10] =
7999 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
8000 ioarcb->cmd_pkt.cdb[11] =
8001 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
8002 ioarcb->cmd_pkt.cdb[12] =
8003 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8004 ioarcb->cmd_pkt.cdb[13] =
8005 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8006 }
8007
8008 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 8009 ioarcb->cmd_pkt.cdb[14] =
8010 ioa_cfg->identify_hrrq_index;
05a6538a 8011
8012 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8013 IPR_INTERNAL_TIMEOUT);
8014
56d6aa33 8015 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8016 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 8017
8018 LEAVE;
8019 return IPR_RC_JOB_RETURN;
05a6538a 8020 }
8021
1da177e4 8022 LEAVE;
05a6538a 8023 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8024}
8025
8026/**
8027 * ipr_reset_timer_done - Adapter reset timer function
8028 * @ipr_cmd: ipr command struct
8029 *
8030 * Description: This function is used in adapter reset processing
8031 * for timing events. If the reset_cmd pointer in the IOA
8032 * config struct is not this adapter's we are doing nested
8033 * resets and fail_all_ops will take care of freeing the
8034 * command block.
8035 *
8036 * Return value:
8037 * none
8038 **/
8039static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8040{
8041 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8042 unsigned long lock_flags = 0;
8043
8044 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8045
8046 if (ioa_cfg->reset_cmd == ipr_cmd) {
8047 list_del(&ipr_cmd->queue);
8048 ipr_cmd->done(ipr_cmd);
8049 }
8050
8051 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8052}
8053
8054/**
8055 * ipr_reset_start_timer - Start a timer for adapter reset job
8056 * @ipr_cmd: ipr command struct
8057 * @timeout: timeout value
8058 *
8059 * Description: This function is used in adapter reset processing
8060 * for timing events. If the reset_cmd pointer in the IOA
8061 * config struct is not this adapter's we are doing nested
8062 * resets and fail_all_ops will take care of freeing the
8063 * command block.
8064 *
8065 * Return value:
8066 * none
8067 **/
8068static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8069 unsigned long timeout)
8070{
05a6538a 8071
8072 ENTER;
8073 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8074 ipr_cmd->done = ipr_reset_ioa_job;
8075
8076 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8077 ipr_cmd->timer.expires = jiffies + timeout;
8078 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8079 add_timer(&ipr_cmd->timer);
8080}
8081
8082/**
8083 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8084 * @ioa_cfg: ioa cfg struct
8085 *
8086 * Return value:
8087 * nothing
8088 **/
8089static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8090{
05a6538a 8091 struct ipr_hrr_queue *hrrq;
1da177e4 8092
05a6538a 8093 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 8094 spin_lock(&hrrq->_lock);
05a6538a 8095 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8096
8097 /* Initialize Host RRQ pointers */
8098 hrrq->hrrq_start = hrrq->host_rrq;
8099 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8100 hrrq->hrrq_curr = hrrq->hrrq_start;
8101 hrrq->toggle_bit = 1;
56d6aa33 8102 spin_unlock(&hrrq->_lock);
05a6538a 8103 }
56d6aa33 8104 wmb();
05a6538a 8105
56d6aa33 8106 ioa_cfg->identify_hrrq_index = 0;
8107 if (ioa_cfg->hrrq_num == 1)
8108 atomic_set(&ioa_cfg->hrrq_index, 0);
8109 else
8110 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 8111
8112 /* Zero out config table */
3e7ebdfa 8113 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 8114}
8115
214777ba
WB		 8116/**
8117 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8118 * @ipr_cmd: ipr command struct
8119 *
8120 * Return value:
8121 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8122 **/
8123static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8124{
8125 unsigned long stage, stage_time;
8126 u32 feedback;
8127 volatile u32 int_reg;
8128 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8129 u64 maskval = 0;
8130
8131 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8132 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8133 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8134
8135 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8136
8137 /* sanity check the stage_time value */
438b0331
WB		 8138 if (stage_time == 0)
8139 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8140 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 8141 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8142 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8143 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8144
8145 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8146 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8147 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8148 stage_time = ioa_cfg->transop_timeout;
8149 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8150 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 8151 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8152 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8153 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8154 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8155 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8156 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8157 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8158 return IPR_RC_JOB_CONTINUE;
8159 }
214777ba
WB		 8160 }
8161
8162 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8163 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8164 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8165 ipr_cmd->done = ipr_reset_ioa_job;
8166 add_timer(&ipr_cmd->timer);
05a6538a 8167
8168 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 8169
8170 return IPR_RC_JOB_RETURN;
8171}
8172
1da177e4
LT		 8173/**
8174 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8175 * @ipr_cmd: ipr command struct
8176 *
8177 * This function reinitializes some control blocks and
8178 * enables destructive diagnostics on the adapter.
8179 *
8180 * Return value:
8181 * IPR_RC_JOB_RETURN
8182 **/
8183static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8184{
8185 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8186 volatile u32 int_reg;
7be96900 8187 volatile u64 maskval;
56d6aa33 8188 int i;
1da177e4
LT		 8189
8190 ENTER;
214777ba 8191 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 8192 ipr_init_ioa_mem(ioa_cfg);
8193
56d6aa33 8194 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8195 spin_lock(&ioa_cfg->hrrq[i]._lock);
8196 ioa_cfg->hrrq[i].allow_interrupts = 1;
8197 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8198 }
8199 wmb();
8701f185
WB		 8200 if (ioa_cfg->sis64) {
8201 /* Set the adapter to the correct endian mode. */
8202 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8203 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8204 }
8205
7be96900 8206 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 8207
8208 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8209 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 8210 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 8211 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8212 return IPR_RC_JOB_CONTINUE;
8213 }
8214
8215 /* Enable destructive diagnostics on IOA */
214777ba
WB		 8216 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8217
7be96900
WB		 8218 if (ioa_cfg->sis64) {
8219 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8220 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8221 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8222 } else
8223 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 8224
1da177e4
LT		 8225 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8226
8227 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8228
214777ba
WB		 8229 if (ioa_cfg->sis64) {
8230 ipr_cmd->job_step = ipr_reset_next_stage;
8231 return IPR_RC_JOB_CONTINUE;
8232 }
8233
1da177e4 8234 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 8235 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 8236 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8237 ipr_cmd->done = ipr_reset_ioa_job;
8238 add_timer(&ipr_cmd->timer);
05a6538a 8239 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8240
8241 LEAVE;
8242 return IPR_RC_JOB_RETURN;
8243}
8244
8245/**
8246 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8247 * @ipr_cmd: ipr command struct
8248 *
8249 * This function is invoked when an adapter dump has run out
8250 * of processing time.
8251 *
8252 * Return value:
8253 * IPR_RC_JOB_CONTINUE
8254 **/
8255static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8256{
8257 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8258
8259 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 8260 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8261 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 8262 ioa_cfg->sdt_state = ABORT_DUMP;
8263
4c647e90 8264 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 8265 ipr_cmd->job_step = ipr_reset_alert;
8266
8267 return IPR_RC_JOB_CONTINUE;
8268}
8269
8270/**
8271 * ipr_unit_check_no_data - Log a unit check/no data error log
8272 * @ioa_cfg: ioa config struct
8273 *
8274 * Logs an error indicating the adapter unit checked, but for some
8275 * reason, we were unable to fetch the unit check buffer.
8276 *
8277 * Return value:
8278 * nothing
8279 **/
8280static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8281{
8282 ioa_cfg->errors_logged++;
8283 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8284}
8285
8286/**
8287 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8288 * @ioa_cfg: ioa config struct
8289 *
8290 * Fetches the unit check buffer from the adapter by clocking the data
8291 * through the mailbox register.
8292 *
8293 * Return value:
8294 * nothing
8295 **/
8296static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8297{
8298 unsigned long mailbox;
8299 struct ipr_hostrcb *hostrcb;
8300 struct ipr_uc_sdt sdt;
8301 int rc, length;
65f56475 8302 u32 ioasc;
1da177e4
LT		 8303
8304 mailbox = readl(ioa_cfg->ioa_mailbox);
8305
dcbad00e 8306 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8307 ipr_unit_check_no_data(ioa_cfg);
8308 return;
8309 }
8310
8311 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8312 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8313 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8314
dcbad00e
WB		 8315 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8316 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8317 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8318 ipr_unit_check_no_data(ioa_cfg);
8319 return;
8320 }
8321
8322 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8323 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8324 length = be32_to_cpu(sdt.entry[0].end_token);
8325 else
8326 length = (be32_to_cpu(sdt.entry[0].end_token) -
8327 be32_to_cpu(sdt.entry[0].start_token)) &
8328 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8329
8330 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8331 struct ipr_hostrcb, queue);
8332 list_del(&hostrcb->queue);
8333 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8334
8335 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8336 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8337 (__be32 *)&hostrcb->hcam,
8338 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8339
65f56475 8340 if (!rc) {
1da177e4 8341 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8342 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8343 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8344 ioa_cfg->sdt_state == GET_DUMP)
8345 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8346 } else
1da177e4
LT		 8347 ipr_unit_check_no_data(ioa_cfg);
8348
8349 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8350}
8351
110def85
WB		 8352/**
8353 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8354 * @ipr_cmd: ipr command struct
8355 *
8356 * Description: This function will call to get the unit check buffer.
8357 *
8358 * Return value:
8359 * IPR_RC_JOB_RETURN
8360 **/
8361static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8362{
8363 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8364
8365 ENTER;
8366 ioa_cfg->ioa_unit_checked = 0;
8367 ipr_get_unit_check_buffer(ioa_cfg);
8368 ipr_cmd->job_step = ipr_reset_alert;
8369 ipr_reset_start_timer(ipr_cmd, 0);
8370
8371 LEAVE;
8372 return IPR_RC_JOB_RETURN;
8373}
8374
f41f1d99
GKB		 8375static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8376{
8377 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8378
8379 ENTER;
8380
8381 if (ioa_cfg->sdt_state != GET_DUMP)
8382 return IPR_RC_JOB_RETURN;
8383
8384 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8385 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8386 IPR_PCII_MAILBOX_STABLE)) {
8387
8388 if (!ipr_cmd->u.time_left)
8389 dev_err(&ioa_cfg->pdev->dev,
8390 "Timed out waiting for Mailbox register.\n");
8391
8392 ioa_cfg->sdt_state = READ_DUMP;
8393 ioa_cfg->dump_timeout = 0;
8394 if (ioa_cfg->sis64)
8395 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8396 else
8397 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8398 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8399 schedule_work(&ioa_cfg->work_q);
8400
8401 } else {
8402 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8403 ipr_reset_start_timer(ipr_cmd,
8404 IPR_CHECK_FOR_RESET_TIMEOUT);
8405 }
8406
8407 LEAVE;
8408 return IPR_RC_JOB_RETURN;
8409}
8410
1da177e4
LT		 8411/**
8412 * ipr_reset_restore_cfg_space - Restore PCI config space.
8413 * @ipr_cmd: ipr command struct
8414 *
8415 * Description: This function restores the saved PCI config space of
8416 * the adapter, fails all outstanding ops back to the callers, and
8417 * fetches the dump/unit check if applicable to this reset.
8418 *
8419 * Return value:
8420 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8421 **/
8422static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8423{
8424 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8425 u32 int_reg;
1da177e4
LT		 8426
8427 ENTER;
99c965dd 8428 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8429 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8430
8431 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8432 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8433 return IPR_RC_JOB_CONTINUE;
8434 }
8435
8436 ipr_fail_all_ops(ioa_cfg);
8437
8701f185
WB		 8438 if (ioa_cfg->sis64) {
8439 /* Set the adapter to the correct endian mode. */
8440 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8441 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8442 }
8443
1da177e4 8444 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8445 if (ioa_cfg->sis64) {
8446 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8447 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8448 return IPR_RC_JOB_RETURN;
8449 } else {
8450 ioa_cfg->ioa_unit_checked = 0;
8451 ipr_get_unit_check_buffer(ioa_cfg);
8452 ipr_cmd->job_step = ipr_reset_alert;
8453 ipr_reset_start_timer(ipr_cmd, 0);
8454 return IPR_RC_JOB_RETURN;
8455 }
1da177e4
LT		 8456 }
8457
8458 if (ioa_cfg->in_ioa_bringdown) {
8459 ipr_cmd->job_step = ipr_ioa_bringdown_done;
f41f1d99
GKB		 8460 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8461 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8462 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
1da177e4
LT		 8463 } else {
8464 ipr_cmd->job_step = ipr_reset_enable_ioa;
1da177e4
LT		 8465 }
8466
438b0331 8467 LEAVE;
1da177e4
LT		 8468 return IPR_RC_JOB_CONTINUE;
8469}
8470
e619e1a7
BK		 8471/**
8472 * ipr_reset_bist_done - BIST has completed on the adapter.
8473 * @ipr_cmd: ipr command struct
8474 *
8475 * Description: Unblock config space and resume the reset process.
8476 *
8477 * Return value:
8478 * IPR_RC_JOB_CONTINUE
8479 **/
8480static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8481{
fb51ccbf
JK		 8482 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8483
e619e1a7 8484 ENTER;
fb51ccbf
JK		 8485 if (ioa_cfg->cfg_locked)
8486 pci_cfg_access_unlock(ioa_cfg->pdev);
8487 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8488 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8489 LEAVE;
8490 return IPR_RC_JOB_CONTINUE;
8491}
8492
1da177e4
LT		 8493/**
8494 * ipr_reset_start_bist - Run BIST on the adapter.
8495 * @ipr_cmd: ipr command struct
8496 *
8497 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8498 *
8499 * Return value:
8500 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8501 **/
8502static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8503{
8504 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8505 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8506
8507 ENTER;
cb237ef7
WB		 8508 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8509 writel(IPR_UPROCI_SIS64_START_BIST,
8510 ioa_cfg->regs.set_uproc_interrupt_reg32);
8511 else
8512 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8513
8514 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8515 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8516 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8517 rc = IPR_RC_JOB_RETURN;
cb237ef7 8518 } else {
fb51ccbf
JK		 8519 if (ioa_cfg->cfg_locked)
8520 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8521 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8522 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8523 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8524 }
8525
8526 LEAVE;
8527 return rc;
8528}
8529
463fc696
BK		 8530/**
8531 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8532 * @ipr_cmd: ipr command struct
8533 *
8534 * Description: This clears PCI reset to the adapter and delays two seconds.
8535 *
8536 * Return value:
8537 * IPR_RC_JOB_RETURN
8538 **/
8539static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8540{
8541 ENTER;
463fc696
BK		 8542 ipr_cmd->job_step = ipr_reset_bist_done;
8543 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8544 LEAVE;
8545 return IPR_RC_JOB_RETURN;
8546}
8547
2796ca5e
BK		 8548/**
8549 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8550 * @work: work struct
8551 *
8552 * Description: This pulses warm reset to a slot.
8553 *
8554 **/
8555static void ipr_reset_reset_work(struct work_struct *work)
8556{
8557 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8558 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8559 struct pci_dev *pdev = ioa_cfg->pdev;
8560 unsigned long lock_flags = 0;
8561
8562 ENTER;
8563 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8564 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8565 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8566
8567 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8568 if (ioa_cfg->reset_cmd == ipr_cmd)
8569 ipr_reset_ioa_job(ipr_cmd);
8570 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8571 LEAVE;
8572}
8573
463fc696
BK		 8574/**
8575 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8576 * @ipr_cmd: ipr command struct
8577 *
8578 * Description: This asserts PCI reset to the adapter.
8579 *
8580 * Return value:
8581 * IPR_RC_JOB_RETURN
8582 **/
8583static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8584{
8585 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
463fc696
BK		 8586
8587 ENTER;
2796ca5e
BK		 8588 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8589 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
463fc696 8590 ipr_cmd->job_step = ipr_reset_slot_reset_done;
463fc696
BK		 8591 LEAVE;
8592 return IPR_RC_JOB_RETURN;
8593}
8594
fb51ccbf
JK		 8595/**
8596 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8597 * @ipr_cmd: ipr command struct
8598 *
8599 * Description: This attempts to block config access to the IOA.
8600 *
8601 * Return value:
8602 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8603 **/
8604static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8605{
8606 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8607 int rc = IPR_RC_JOB_CONTINUE;
8608
8609 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8610 ioa_cfg->cfg_locked = 1;
8611 ipr_cmd->job_step = ioa_cfg->reset;
8612 } else {
8613 if (ipr_cmd->u.time_left) {
8614 rc = IPR_RC_JOB_RETURN;
8615 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8616 ipr_reset_start_timer(ipr_cmd,
8617 IPR_CHECK_FOR_RESET_TIMEOUT);
8618 } else {
8619 ipr_cmd->job_step = ioa_cfg->reset;
8620 dev_err(&ioa_cfg->pdev->dev,
8621 "Timed out waiting to lock config access. Resetting anyway.\n");
8622 }
8623 }
8624
8625 return rc;
8626}
8627
8628/**
8629 * ipr_reset_block_config_access - Block config access to the IOA
8630 * @ipr_cmd: ipr command struct
8631 *
8632 * Description: This attempts to block config access to the IOA
8633 *
8634 * Return value:
8635 * IPR_RC_JOB_CONTINUE
8636 **/
8637static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8638{
8639 ipr_cmd->ioa_cfg->cfg_locked = 0;
8640 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8641 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8642 return IPR_RC_JOB_CONTINUE;
8643}
8644
1da177e4
LT		 8645/**
8646 * ipr_reset_allowed - Query whether or not IOA can be reset
8647 * @ioa_cfg: ioa config struct
8648 *
8649 * Return value:
8650 * 0 if reset not allowed / non-zero if reset is allowed
8651 **/
8652static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8653{
8654 volatile u32 temp_reg;
8655
8656 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8657 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8658}
8659
8660/**
8661 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8662 * @ipr_cmd: ipr command struct
8663 *
8664 * Description: This function waits for adapter permission to run BIST,
8665 * then runs BIST. If the adapter does not give permission after a
8666 * reasonable time, we will reset the adapter anyway. The impact of
8667 * resetting the adapter without warning the adapter is the risk of
8668 * losing the persistent error log on the adapter. If the adapter is
8669 * reset while it is writing to the flash on the adapter, the flash
8670 * segment will have bad ECC and be zeroed.
8671 *
8672 * Return value:
8673 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8674 **/
8675static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8676{
8677 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8678 int rc = IPR_RC_JOB_RETURN;
8679
8680 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8681 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8682 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8683 } else {
fb51ccbf 8684 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8685 rc = IPR_RC_JOB_CONTINUE;
8686 }
8687
8688 return rc;
8689}
8690
8691/**
8701f185 8692 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8693 * @ipr_cmd: ipr command struct
8694 *
8695 * Description: This function alerts the adapter that it will be reset.
8696 * If memory space is not currently enabled, proceed directly
8697 * to running BIST on the adapter. The timer must always be started
8698 * so we guarantee we do not run BIST from ipr_isr.
8699 *
8700 * Return value:
8701 * IPR_RC_JOB_RETURN
8702 **/
8703static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8704{
8705 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8706 u16 cmd_reg;
8707 int rc;
8708
8709 ENTER;
8710 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8711
8712 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8713 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8714 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8715 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8716 } else {
fb51ccbf 8717 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8718 }
8719
8720 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8721 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8722
8723 LEAVE;
8724 return IPR_RC_JOB_RETURN;
8725}
8726
4fdd7c7a
BK		 8727/**
8728 * ipr_reset_quiesce_done - Complete IOA disconnect
8729 * @ipr_cmd: ipr command struct
8730 *
8731 * Description: Freeze the adapter to complete quiesce processing
8732 *
8733 * Return value:
8734 * IPR_RC_JOB_CONTINUE
8735 **/
8736static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8737{
8738 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8739
8740 ENTER;
8741 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8742 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8743 LEAVE;
8744 return IPR_RC_JOB_CONTINUE;
8745}
8746
8747/**
8748 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8749 * @ipr_cmd: ipr command struct
8750 *
8751 * Description: Ensure nothing is outstanding to the IOA and
8752 * proceed with IOA disconnect. Otherwise reset the IOA.
8753 *
8754 * Return value:
8755 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8756 **/
8757static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8758{
8759 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8760 struct ipr_cmnd *loop_cmd;
8761 struct ipr_hrr_queue *hrrq;
8762 int rc = IPR_RC_JOB_CONTINUE;
8763 int count = 0;
8764
8765 ENTER;
8766 ipr_cmd->job_step = ipr_reset_quiesce_done;
8767
8768 for_each_hrrq(hrrq, ioa_cfg) {
8769 spin_lock(&hrrq->_lock);
8770 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8771 count++;
8772 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8773 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8774 rc = IPR_RC_JOB_RETURN;
8775 break;
8776 }
8777 spin_unlock(&hrrq->_lock);
8778
8779 if (count)
8780 break;
8781 }
8782
8783 LEAVE;
8784 return rc;
8785}
8786
8787/**
8788 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8789 * @ipr_cmd: ipr command struct
8790 *
8791 * Description: Cancel any oustanding HCAMs to the IOA.
8792 *
8793 * Return value:
8794 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8795 **/
8796static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8797{
8798 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8799 int rc = IPR_RC_JOB_CONTINUE;
8800 struct ipr_cmd_pkt *cmd_pkt;
8801 struct ipr_cmnd *hcam_cmd;
8802 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8803
8804 ENTER;
8805 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8806
8807 if (!hrrq->ioa_is_dead) {
8808 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8809 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8810 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8811 continue;
8812
8813 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8814 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8815 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8816 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8817 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8818 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8819 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8820 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8821 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8822 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8823 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8824 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8825 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8826 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8827
8828 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8829 IPR_CANCEL_TIMEOUT);
8830
8831 rc = IPR_RC_JOB_RETURN;
8832 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8833 break;
8834 }
8835 }
8836 } else
8837 ipr_cmd->job_step = ipr_reset_alert;
8838
8839 LEAVE;
8840 return rc;
8841}
8842
1da177e4
LT		 8843/**
8844 * ipr_reset_ucode_download_done - Microcode download completion
8845 * @ipr_cmd: ipr command struct
8846 *
8847 * Description: This function unmaps the microcode download buffer.
8848 *
8849 * Return value:
8850 * IPR_RC_JOB_CONTINUE
8851 **/
8852static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8853{
8854 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8855 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8856
d73341bf 8857 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 8858 sglist->num_sg, DMA_TO_DEVICE);
8859
8860 ipr_cmd->job_step = ipr_reset_alert;
8861 return IPR_RC_JOB_CONTINUE;
8862}
8863
8864/**
8865 * ipr_reset_ucode_download - Download microcode to the adapter
8866 * @ipr_cmd: ipr command struct
8867 *
8868 * Description: This function checks to see if it there is microcode
8869 * to download to the adapter. If there is, a download is performed.
8870 *
8871 * Return value:
8872 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8873 **/
8874static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8875{
8876 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8877 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8878
8879 ENTER;
8880 ipr_cmd->job_step = ipr_reset_alert;
8881
8882 if (!sglist)
8883 return IPR_RC_JOB_CONTINUE;
8884
8885 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8886 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8887 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8888 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8889 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8890 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8891 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8892
a32c055f
WB		 8893 if (ioa_cfg->sis64)
8894 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8895 else
8896 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8897 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8898
8899 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8900 IPR_WRITE_BUFFER_TIMEOUT);
8901
8902 LEAVE;
8903 return IPR_RC_JOB_RETURN;
8904}
8905
8906/**
8907 * ipr_reset_shutdown_ioa - Shutdown the adapter
8908 * @ipr_cmd: ipr command struct
8909 *
8910 * Description: This function issues an adapter shutdown of the
8911 * specified type to the specified adapter as part of the
8912 * adapter reset job.
8913 *
8914 * Return value:
8915 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8916 **/
8917static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8918{
8919 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8920 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8921 unsigned long timeout;
8922 int rc = IPR_RC_JOB_CONTINUE;
8923
8924 ENTER;
4fdd7c7a
BK		 8925 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8926 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8927 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
56d6aa33 8928 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8929 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8930 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8931 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8932 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8933
ac09c349
BK		 8934 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8935 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8936 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8937 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8938 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8939 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8940 else
ac09c349 8941 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8942
8943 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8944
8945 rc = IPR_RC_JOB_RETURN;
8946 ipr_cmd->job_step = ipr_reset_ucode_download;
8947 } else
8948 ipr_cmd->job_step = ipr_reset_alert;
8949
8950 LEAVE;
8951 return rc;
8952}
8953
8954/**
8955 * ipr_reset_ioa_job - Adapter reset job
8956 * @ipr_cmd: ipr command struct
8957 *
8958 * Description: This function is the job router for the adapter reset job.
8959 *
8960 * Return value:
8961 * none
8962 **/
8963static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8964{
8965 u32 rc, ioasc;
1da177e4
LT		 8966 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8967
8968 do {
96d21f00 8969 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8970
8971 if (ioa_cfg->reset_cmd != ipr_cmd) {
8972 /*
8973 * We are doing nested adapter resets and this is
8974 * not the current reset job.
8975 */
05a6538a 8976 list_add_tail(&ipr_cmd->queue,
8977 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8978 return;
8979 }
8980
8981 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 8982 rc = ipr_cmd->job_step_failed(ipr_cmd);
8983 if (rc == IPR_RC_JOB_RETURN)
8984 return;
1da177e4
LT		 8985 }
8986
8987 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8988 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8989 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8990 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8991}
8992
8993/**
8994 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8995 * @ioa_cfg: ioa config struct
8996 * @job_step: first job step of reset job
8997 * @shutdown_type: shutdown type
8998 *
8999 * Description: This function will initiate the reset of the given adapter
9000 * starting at the selected job step.
9001 * If the caller needs to wait on the completion of the reset,
9002 * the caller must sleep on the reset_wait_q.
9003 *
9004 * Return value:
9005 * none
9006 **/
9007static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9008 int (*job_step) (struct ipr_cmnd *),
9009 enum ipr_shutdown_type shutdown_type)
9010{
9011 struct ipr_cmnd *ipr_cmd;
56d6aa33 9012 int i;
1da177e4
LT		 9013
9014 ioa_cfg->in_reset_reload = 1;
56d6aa33 9015 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9016 spin_lock(&ioa_cfg->hrrq[i]._lock);
9017 ioa_cfg->hrrq[i].allow_cmds = 0;
9018 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9019 }
9020 wmb();
bfae7820
BK		 9021 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
9022 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 9023
9024 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9025 ioa_cfg->reset_cmd = ipr_cmd;
9026 ipr_cmd->job_step = job_step;
9027 ipr_cmd->u.shutdown_type = shutdown_type;
9028
9029 ipr_reset_ioa_job(ipr_cmd);
9030}
9031
9032/**
9033 * ipr_initiate_ioa_reset - Initiate an adapter reset
9034 * @ioa_cfg: ioa config struct
9035 * @shutdown_type: shutdown type
9036 *
9037 * Description: This function will initiate the reset of the given adapter.
9038 * If the caller needs to wait on the completion of the reset,
9039 * the caller must sleep on the reset_wait_q.
9040 *
9041 * Return value:
9042 * none
9043 **/
9044static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9045 enum ipr_shutdown_type shutdown_type)
9046{
56d6aa33 9047 int i;
9048
9049 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 9050 return;
9051
41e9a696
BK		 9052 if (ioa_cfg->in_reset_reload) {
9053 if (ioa_cfg->sdt_state == GET_DUMP)
9054 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9055 else if (ioa_cfg->sdt_state == READ_DUMP)
9056 ioa_cfg->sdt_state = ABORT_DUMP;
9057 }
1da177e4
LT		 9058
9059 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9060 dev_err(&ioa_cfg->pdev->dev,
9061 "IOA taken offline - error recovery failed\n");
9062
9063 ioa_cfg->reset_retries = 0;
56d6aa33 9064 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9065 spin_lock(&ioa_cfg->hrrq[i]._lock);
9066 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9067 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9068 }
9069 wmb();
1da177e4
LT		 9070
9071 if (ioa_cfg->in_ioa_bringdown) {
9072 ioa_cfg->reset_cmd = NULL;
9073 ioa_cfg->in_reset_reload = 0;
9074 ipr_fail_all_ops(ioa_cfg);
9075 wake_up_all(&ioa_cfg->reset_wait_q);
9076
bfae7820
BK		 9077 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9078 spin_unlock_irq(ioa_cfg->host->host_lock);
9079 scsi_unblock_requests(ioa_cfg->host);
9080 spin_lock_irq(ioa_cfg->host->host_lock);
9081 }
1da177e4
LT		 9082 return;
9083 } else {
9084 ioa_cfg->in_ioa_bringdown = 1;
9085 shutdown_type = IPR_SHUTDOWN_NONE;
9086 }
9087 }
9088
9089 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9090 shutdown_type);
9091}
9092
f8a88b19
LV		 9093/**
9094 * ipr_reset_freeze - Hold off all I/O activity
9095 * @ipr_cmd: ipr command struct
9096 *
9097 * Description: If the PCI slot is frozen, hold off all I/O
9098 * activity; then, as soon as the slot is available again,
9099 * initiate an adapter reset.
9100 */
9101static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9102{
56d6aa33 9103 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9104 int i;
9105
f8a88b19 9106 /* Disallow new interrupts, avoid loop */
56d6aa33 9107 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9108 spin_lock(&ioa_cfg->hrrq[i]._lock);
9109 ioa_cfg->hrrq[i].allow_interrupts = 0;
9110 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9111 }
9112 wmb();
05a6538a 9113 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 9114 ipr_cmd->done = ipr_reset_ioa_job;
9115 return IPR_RC_JOB_RETURN;
9116}
9117
6270e593
BK		 9118/**
9119 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9120 * @pdev: PCI device struct
9121 *
9122 * Description: This routine is called to tell us that the MMIO
9123 * access to the IOA has been restored
9124 */
9125static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9126{
9127 unsigned long flags = 0;
9128 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9129
9130 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9131 if (!ioa_cfg->probe_done)
9132 pci_save_state(pdev);
9133 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9134 return PCI_ERS_RESULT_NEED_RESET;
9135}
9136
f8a88b19
LV		 9137/**
9138 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9139 * @pdev: PCI device struct
9140 *
9141 * Description: This routine is called to tell us that the PCI bus
9142 * is down. Can't do anything here, except put the device driver
9143 * into a holding pattern, waiting for the PCI bus to come back.
9144 */
9145static void ipr_pci_frozen(struct pci_dev *pdev)
9146{
9147 unsigned long flags = 0;
9148 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9149
9150 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9151 if (ioa_cfg->probe_done)
9152 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 9153 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9154}
9155
9156/**
9157 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9158 * @pdev: PCI device struct
9159 *
9160 * Description: This routine is called by the pci error recovery
9161 * code after the PCI slot has been reset, just before we
9162 * should resume normal operations.
9163 */
9164static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9165{
9166 unsigned long flags = 0;
9167 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9168
9169 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9170 if (ioa_cfg->probe_done) {
9171 if (ioa_cfg->needs_warm_reset)
9172 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9173 else
9174 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9175 IPR_SHUTDOWN_NONE);
9176 } else
9177 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9178 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9179 return PCI_ERS_RESULT_RECOVERED;
9180}
9181
9182/**
9183 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9184 * @pdev: PCI device struct
9185 *
9186 * Description: This routine is called when the PCI bus has
9187 * permanently failed.
9188 */
9189static void ipr_pci_perm_failure(struct pci_dev *pdev)
9190{
9191 unsigned long flags = 0;
9192 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 9193 int i;
f8a88b19
LV		 9194
9195 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9196 if (ioa_cfg->probe_done) {
9197 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9198 ioa_cfg->sdt_state = ABORT_DUMP;
9199 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9200 ioa_cfg->in_ioa_bringdown = 1;
9201 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9202 spin_lock(&ioa_cfg->hrrq[i]._lock);
9203 ioa_cfg->hrrq[i].allow_cmds = 0;
9204 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9205 }
9206 wmb();
9207 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9208 } else
9209 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9210 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9211}
9212
9213/**
9214 * ipr_pci_error_detected - Called when a PCI error is detected.
9215 * @pdev: PCI device struct
9216 * @state: PCI channel state
9217 *
9218 * Description: Called when a PCI error is detected.
9219 *
9220 * Return value:
9221 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9222 */
9223static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9224 pci_channel_state_t state)
9225{
9226 switch (state) {
9227 case pci_channel_io_frozen:
9228 ipr_pci_frozen(pdev);
6270e593 9229 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 9230 case pci_channel_io_perm_failure:
9231 ipr_pci_perm_failure(pdev);
9232 return PCI_ERS_RESULT_DISCONNECT;
9233 break;
9234 default:
9235 break;
9236 }
9237 return PCI_ERS_RESULT_NEED_RESET;
9238}
9239
1da177e4
LT		 9240/**
9241 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9242 * @ioa_cfg: ioa cfg struct
9243 *
9244 * Description: This is the second phase of adapter intialization
9245 * This function takes care of initilizing the adapter to the point
9246 * where it can accept new commands.
9247
9248 * Return value:
b1c11812 9249 * 0 on success / -EIO on failure
1da177e4 9250 **/
6f039790 9251static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9252{
9253 int rc = 0;
9254 unsigned long host_lock_flags = 0;
9255
9256 ENTER;
9257 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9258 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 9259 ioa_cfg->probe_done = 1;
ce155cce
BK		 9260 if (ioa_cfg->needs_hard_reset) {
9261 ioa_cfg->needs_hard_reset = 0;
9262 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9263 } else
9264 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9265 IPR_SHUTDOWN_NONE);
1da177e4 9266 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
1da177e4
LT		 9267
9268 LEAVE;
9269 return rc;
9270}
9271
9272/**
9273 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9274 * @ioa_cfg: ioa config struct
9275 *
9276 * Return value:
9277 * none
9278 **/
9279static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9280{
9281 int i;
9282
a65e8f12
BK		 9283 if (ioa_cfg->ipr_cmnd_list) {
9284 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9285 if (ioa_cfg->ipr_cmnd_list[i])
9286 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9287 ioa_cfg->ipr_cmnd_list[i],
9288 ioa_cfg->ipr_cmnd_list_dma[i]);
1da177e4 9289
a65e8f12
BK		 9290 ioa_cfg->ipr_cmnd_list[i] = NULL;
9291 }
1da177e4
LT		 9292 }
9293
9294 if (ioa_cfg->ipr_cmd_pool)
d73341bf 9295 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 9296
89aad428
BK		 9297 kfree(ioa_cfg->ipr_cmnd_list);
9298 kfree(ioa_cfg->ipr_cmnd_list_dma);
9299 ioa_cfg->ipr_cmnd_list = NULL;
9300 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 9301 ioa_cfg->ipr_cmd_pool = NULL;
9302}
9303
9304/**
9305 * ipr_free_mem - Frees memory allocated for an adapter
9306 * @ioa_cfg: ioa cfg struct
9307 *
9308 * Return value:
9309 * nothing
9310 **/
9311static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9312{
9313 int i;
9314
9315 kfree(ioa_cfg->res_entries);
d73341bf
AB		 9316 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9317 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 9318 ipr_free_cmd_blks(ioa_cfg);
05a6538a 9319
9320 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 9321 dma_free_coherent(&ioa_cfg->pdev->dev,
9322 sizeof(u32) * ioa_cfg->hrrq[i].size,
9323 ioa_cfg->hrrq[i].host_rrq,
9324 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9325
d73341bf
AB		 9326 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9327 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4
LT		 9328
9329 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9330 dma_free_coherent(&ioa_cfg->pdev->dev,
9331 sizeof(struct ipr_hostrcb),
9332 ioa_cfg->hostrcb[i],
9333 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 9334 }
9335
9336 ipr_free_dump(ioa_cfg);
1da177e4
LT		 9337 kfree(ioa_cfg->trace);
9338}
9339
9340/**
2796ca5e
BK		 9341 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9342 * @ioa_cfg: ipr cfg struct
1da177e4 9343 *
2796ca5e 9344 * This function frees all allocated IRQs for the
1da177e4
LT		 9345 * specified adapter.
9346 *
9347 * Return value:
9348 * none
9349 **/
2796ca5e 9350static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9351{
9352 struct pci_dev *pdev = ioa_cfg->pdev;
9353
05a6538a 9354 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9355 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9356 int i;
9357 for (i = 0; i < ioa_cfg->nvectors; i++)
9358 free_irq(ioa_cfg->vectors_info[i].vec,
2796ca5e 9359 &ioa_cfg->hrrq[i]);
05a6538a 9360 } else
9361 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9362
56d6aa33 9363 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 9364 pci_disable_msi(pdev);
56d6aa33 9365 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9366 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 9367 pci_disable_msix(pdev);
56d6aa33 9368 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9369 }
2796ca5e 9370}
05a6538a 9371
2796ca5e
BK		 9372/**
9373 * ipr_free_all_resources - Free all allocated resources for an adapter.
9374 * @ipr_cmd: ipr command struct
9375 *
9376 * This function frees all allocated resources for the
9377 * specified adapter.
9378 *
9379 * Return value:
9380 * none
9381 **/
9382static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9383{
9384 struct pci_dev *pdev = ioa_cfg->pdev;
05a6538a 9385
2796ca5e
BK		 9386 ENTER;
9387 ipr_free_irqs(ioa_cfg);
9388 if (ioa_cfg->reset_work_q)
9389 destroy_workqueue(ioa_cfg->reset_work_q);
1da177e4
LT		 9390 iounmap(ioa_cfg->hdw_dma_regs);
9391 pci_release_regions(pdev);
9392 ipr_free_mem(ioa_cfg);
9393 scsi_host_put(ioa_cfg->host);
9394 pci_disable_device(pdev);
9395 LEAVE;
9396}
9397
9398/**
9399 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9400 * @ioa_cfg: ioa config struct
9401 *
9402 * Return value:
9403 * 0 on success / -ENOMEM on allocation failure
9404 **/
6f039790 9405static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9406{
9407 struct ipr_cmnd *ipr_cmd;
9408 struct ipr_ioarcb *ioarcb;
9409 dma_addr_t dma_addr;
05a6538a 9410 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 9411
d73341bf 9412 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 9413 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 9414
9415 if (!ioa_cfg->ipr_cmd_pool)
9416 return -ENOMEM;
9417
89aad428
BK		 9418 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9419 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9420
9421 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9422 ipr_free_cmd_blks(ioa_cfg);
9423 return -ENOMEM;
9424 }
9425
05a6538a 9426 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9427 if (ioa_cfg->hrrq_num > 1) {
9428 if (i == 0) {
9429 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9430 ioa_cfg->hrrq[i].min_cmd_id = 0;
9431 ioa_cfg->hrrq[i].max_cmd_id =
9432 (entries_each_hrrq - 1);
9433 } else {
9434 entries_each_hrrq =
9435 IPR_NUM_BASE_CMD_BLKS/
9436 (ioa_cfg->hrrq_num - 1);
9437 ioa_cfg->hrrq[i].min_cmd_id =
9438 IPR_NUM_INTERNAL_CMD_BLKS +
9439 (i - 1) * entries_each_hrrq;
9440 ioa_cfg->hrrq[i].max_cmd_id =
9441 (IPR_NUM_INTERNAL_CMD_BLKS +
9442 i * entries_each_hrrq - 1);
9443 }
9444 } else {
9445 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9446 ioa_cfg->hrrq[i].min_cmd_id = 0;
9447 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9448 }
9449 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9450 }
9451
9452 BUG_ON(ioa_cfg->hrrq_num == 0);
9453
9454 i = IPR_NUM_CMD_BLKS -
9455 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9456 if (i > 0) {
9457 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9458 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9459 }
9460
1da177e4 9461 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 9462 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 9463
9464 if (!ipr_cmd) {
9465 ipr_free_cmd_blks(ioa_cfg);
9466 return -ENOMEM;
9467 }
9468
9469 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9470 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9471 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9472
9473 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9474 ipr_cmd->dma_addr = dma_addr;
9475 if (ioa_cfg->sis64)
9476 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9477 else
9478 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9479
1da177e4 9480 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9481 if (ioa_cfg->sis64) {
9482 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9483 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9484 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9485 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9486 } else {
9487 ioarcb->write_ioadl_addr =
9488 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9489 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9490 ioarcb->ioasa_host_pci_addr =
96d21f00 9491 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9492 }
1da177e4
LT		 9493 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9494 ipr_cmd->cmd_index = i;
9495 ipr_cmd->ioa_cfg = ioa_cfg;
9496 ipr_cmd->sense_buffer_dma = dma_addr +
9497 offsetof(struct ipr_cmnd, sense_buffer);
9498
05a6538a 9499 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9500 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9501 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9502 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9503 hrrq_id++;
1da177e4
LT		 9504 }
9505
9506 return 0;
9507}
9508
9509/**
9510 * ipr_alloc_mem - Allocate memory for an adapter
9511 * @ioa_cfg: ioa config struct
9512 *
9513 * Return value:
9514 * 0 on success / non-zero for error
9515 **/
6f039790 9516static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9517{
9518 struct pci_dev *pdev = ioa_cfg->pdev;
9519 int i, rc = -ENOMEM;
9520
9521 ENTER;
0bc42e35 9522 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9523 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9524
9525 if (!ioa_cfg->res_entries)
9526 goto out;
9527
3e7ebdfa 9528 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9529 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9530 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9531 }
1da177e4 9532
d73341bf
AB		 9533 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9534 sizeof(struct ipr_misc_cbs),
9535 &ioa_cfg->vpd_cbs_dma,
9536 GFP_KERNEL);
1da177e4
LT		 9537
9538 if (!ioa_cfg->vpd_cbs)
9539 goto out_free_res_entries;
9540
9541 if (ipr_alloc_cmd_blks(ioa_cfg))
9542 goto out_free_vpd_cbs;
9543
05a6538a 9544 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9545 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9546 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9547 &ioa_cfg->hrrq[i].host_rrq_dma,
9548 GFP_KERNEL);
05a6538a 9549
9550 if (!ioa_cfg->hrrq[i].host_rrq) {
9551 while (--i > 0)
d73341bf 9552 dma_free_coherent(&pdev->dev,
05a6538a 9553 sizeof(u32) * ioa_cfg->hrrq[i].size,
9554 ioa_cfg->hrrq[i].host_rrq,
9555 ioa_cfg->hrrq[i].host_rrq_dma);
9556 goto out_ipr_free_cmd_blocks;
9557 }
9558 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9559 }
1da177e4 9560
d73341bf
AB		 9561 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9562 ioa_cfg->cfg_table_size,
9563 &ioa_cfg->cfg_table_dma,
9564 GFP_KERNEL);
1da177e4 9565
3e7ebdfa 9566 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9567 goto out_free_host_rrq;
9568
9569 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9570 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9571 sizeof(struct ipr_hostrcb),
9572 &ioa_cfg->hostrcb_dma[i],
9573 GFP_KERNEL);
1da177e4
LT		 9574
9575 if (!ioa_cfg->hostrcb[i])
9576 goto out_free_hostrcb_dma;
9577
9578 ioa_cfg->hostrcb[i]->hostrcb_dma =
9579 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9580 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9581 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9582 }
9583
0bc42e35 9584 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9585 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9586
9587 if (!ioa_cfg->trace)
9588 goto out_free_hostrcb_dma;
9589
1da177e4
LT		 9590 rc = 0;
9591out:
9592 LEAVE;
9593 return rc;
9594
9595out_free_hostrcb_dma:
9596 while (i-- > 0) {
d73341bf
AB		 9597 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9598 ioa_cfg->hostrcb[i],
9599 ioa_cfg->hostrcb_dma[i]);
1da177e4 9600 }
d73341bf
AB		 9601 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9602 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9603out_free_host_rrq:
05a6538a 9604 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9605 dma_free_coherent(&pdev->dev,
9606 sizeof(u32) * ioa_cfg->hrrq[i].size,
9607 ioa_cfg->hrrq[i].host_rrq,
9608 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9609 }
1da177e4
LT		 9610out_ipr_free_cmd_blocks:
9611 ipr_free_cmd_blks(ioa_cfg);
9612out_free_vpd_cbs:
d73341bf
AB		 9613 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9614 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9615out_free_res_entries:
9616 kfree(ioa_cfg->res_entries);
9617 goto out;
9618}
9619
9620/**
9621 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9622 * @ioa_cfg: ioa config struct
9623 *
9624 * Return value:
9625 * none
9626 **/
6f039790 9627static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9628{
9629 int i;
9630
9631 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9632 ioa_cfg->bus_attr[i].bus = i;
9633 ioa_cfg->bus_attr[i].qas_enabled = 0;
9634 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9635 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9636 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9637 else
9638 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9639 }
9640}
9641
6270e593
BK		 9642/**
9643 * ipr_init_regs - Initialize IOA registers
9644 * @ioa_cfg: ioa config struct
9645 *
9646 * Return value:
9647 * none
9648 **/
9649static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9650{
9651 const struct ipr_interrupt_offsets *p;
9652 struct ipr_interrupts *t;
9653 void __iomem *base;
9654
9655 p = &ioa_cfg->chip_cfg->regs;
9656 t = &ioa_cfg->regs;
9657 base = ioa_cfg->hdw_dma_regs;
9658
9659 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9660 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9661 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9662 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9663 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9664 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9665 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9666 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9667 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9668 t->ioarrin_reg = base + p->ioarrin_reg;
9669 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9670 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9671 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9672 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9673 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9674 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9675
9676 if (ioa_cfg->sis64) {
9677 t->init_feedback_reg = base + p->init_feedback_reg;
9678 t->dump_addr_reg = base + p->dump_addr_reg;
9679 t->dump_data_reg = base + p->dump_data_reg;
9680 t->endian_swap_reg = base + p->endian_swap_reg;
9681 }
9682}
9683
1da177e4
LT		 9684/**
9685 * ipr_init_ioa_cfg - Initialize IOA config struct
9686 * @ioa_cfg: ioa config struct
9687 * @host: scsi host struct
9688 * @pdev: PCI dev struct
9689 *
9690 * Return value:
9691 * none
9692 **/
6f039790
GKH		 9693static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9694 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9695{
6270e593 9696 int i;
1da177e4
LT		 9697
9698 ioa_cfg->host = host;
9699 ioa_cfg->pdev = pdev;
9700 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9701 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9702 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9703 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9704 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9705 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9706 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9707 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9708
1da177e4
LT		 9709 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9710 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9711 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9712 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9713 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9714 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9715 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9716 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9717 ioa_cfg->sdt_state = INACTIVE;
9718
9719 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9720 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9721
3e7ebdfa
WB		 9722 if (ioa_cfg->sis64) {
9723 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9724 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9725 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9726 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9727 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9728 + ((sizeof(struct ipr_config_table_entry64)
9729 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9730 } else {
9731 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9732 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9733 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9734 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9735 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9736 + ((sizeof(struct ipr_config_table_entry)
9737 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9738 }
6270e593 9739
f688f96d 9740 host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9741 host->unique_id = host->host_no;
9742 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9743 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9744 pci_set_drvdata(pdev, ioa_cfg);
9745
6270e593
BK		 9746 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9747 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9748 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9749 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9750 if (i == 0)
9751 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9752 else
9753 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9754 }
1da177e4
LT		 9755}
9756
9757/**
1be7bd82 9758 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9759 * @dev_id: PCI device id struct
9760 *
9761 * Return value:
1be7bd82 9762 * ptr to chip information on success / NULL on failure
1da177e4 9763 **/
6f039790 9764static const struct ipr_chip_t *
1be7bd82 9765ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9766{
9767 int i;
9768
1da177e4
LT		 9769 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9770 if (ipr_chip[i].vendor == dev_id->vendor &&
9771 ipr_chip[i].device == dev_id->device)
1be7bd82 9772 return &ipr_chip[i];
1da177e4
LT		 9773 return NULL;
9774}
9775
6270e593
BK		 9776/**
9777 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9778 * during probe time
9779 * @ioa_cfg: ioa config struct
9780 *
9781 * Return value:
9782 * None
9783 **/
9784static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9785{
9786 struct pci_dev *pdev = ioa_cfg->pdev;
9787
9788 if (pci_channel_offline(pdev)) {
9789 wait_event_timeout(ioa_cfg->eeh_wait_q,
9790 !pci_channel_offline(pdev),
9791 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9792 pci_restore_state(pdev);
9793 }
9794}
9795
05a6538a 9796static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9797{
9798 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
60e76b77 9799 int i, vectors;
05a6538a 9800
9801 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9802 entries[i].entry = i;
9803
60e76b77
AG		 9804 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9805 entries, 1, ipr_number_of_msix);
9806 if (vectors < 0) {
6270e593 9807 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9808 return vectors;
05a6538a 9809 }
9810
60e76b77
AG		 9811 for (i = 0; i < vectors; i++)
9812 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9813 ioa_cfg->nvectors = vectors;
05a6538a 9814
60e76b77 9815 return 0;
05a6538a 9816}
9817
9818static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9819{
60e76b77 9820 int i, vectors;
05a6538a 9821
60e76b77
AG		 9822 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9823 if (vectors < 0) {
6270e593 9824 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9825 return vectors;
05a6538a 9826 }
9827
60e76b77
AG		 9828 for (i = 0; i < vectors; i++)
9829 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9830 ioa_cfg->nvectors = vectors;
05a6538a 9831
60e76b77 9832 return 0;
05a6538a 9833}
9834
9835static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9836{
9837 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9838
9839 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9840 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9841 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9842 ioa_cfg->vectors_info[vec_idx].
9843 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9844 }
9845}
9846
9847static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9848{
9849 int i, rc;
9850
9851 for (i = 1; i < ioa_cfg->nvectors; i++) {
9852 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9853 ipr_isr_mhrrq,
9854 0,
9855 ioa_cfg->vectors_info[i].desc,
9856 &ioa_cfg->hrrq[i]);
9857 if (rc) {
9858 while (--i >= 0)
9859 free_irq(ioa_cfg->vectors_info[i].vec,
9860 &ioa_cfg->hrrq[i]);
9861 return rc;
9862 }
9863 }
9864 return 0;
9865}
9866
95fecd90
WB		 9867/**
9868 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9869 * @pdev: PCI device struct
9870 *
9871 * Description: Simply set the msi_received flag to 1 indicating that
9872 * Message Signaled Interrupts are supported.
9873 *
9874 * Return value:
9875 * 0 on success / non-zero on failure
9876 **/
6f039790 9877static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9878{
9879 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9880 unsigned long lock_flags = 0;
9881 irqreturn_t rc = IRQ_HANDLED;
9882
05a6538a 9883 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9884 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9885
9886 ioa_cfg->msi_received = 1;
9887 wake_up(&ioa_cfg->msi_wait_q);
9888
9889 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9890 return rc;
9891}
9892
9893/**
9894 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9895 * @pdev: PCI device struct
9896 *
60e76b77 9897 * Description: The return value from pci_enable_msi_range() can not always be
95fecd90
WB		 9898 * trusted. This routine sets up and initiates a test interrupt to determine
9899 * if the interrupt is received via the ipr_test_intr() service routine.
9900 * If the tests fails, the driver will fall back to LSI.
9901 *
9902 * Return value:
9903 * 0 on success / non-zero on failure
9904 **/
6f039790 9905static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9906{
9907 int rc;
9908 volatile u32 int_reg;
9909 unsigned long lock_flags = 0;
9910
9911 ENTER;
9912
9913 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9914 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9915 ioa_cfg->msi_received = 0;
9916 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9917 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9918 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9919 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9920
f19799f4 9921 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9922 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9923 else
9924 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9925 if (rc) {
9926 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9927 return rc;
9928 } else if (ipr_debug)
9929 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9930
214777ba 9931 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9932 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9933 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9934 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9935 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9936
95fecd90
WB		 9937 if (!ioa_cfg->msi_received) {
9938 /* MSI test failed */
9939 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9940 rc = -EOPNOTSUPP;
9941 } else if (ipr_debug)
9942 dev_info(&pdev->dev, "MSI test succeeded.\n");
9943
9944 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9945
f19799f4 9946 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9947 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9948 else
9949 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9950
9951 LEAVE;
9952
9953 return rc;
9954}
9955
05a6538a 9956 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9957 * @pdev: PCI device struct
9958 * @dev_id: PCI device id struct
9959 *
9960 * Return value:
9961 * 0 on success / non-zero on failure
9962 **/
6f039790
GKH		 9963static int ipr_probe_ioa(struct pci_dev *pdev,
9964 const struct pci_device_id *dev_id)
1da177e4
LT		 9965{
9966 struct ipr_ioa_cfg *ioa_cfg;
9967 struct Scsi_Host *host;
9968 unsigned long ipr_regs_pci;
9969 void __iomem *ipr_regs;
a2a65a3e 9970 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9971 volatile u32 mask, uproc, interrupts;
feccada9 9972 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9973
9974 ENTER;
9975
1da177e4 9976 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9977 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9978
9979 if (!host) {
9980 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9981 rc = -ENOMEM;
6270e593 9982 goto out;
1da177e4
LT		 9983 }
9984
9985 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9986 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9987 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9988
1be7bd82 9989 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9990
1be7bd82 9991 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9992 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9993 dev_id->vendor, dev_id->device);
9994 goto out_scsi_host_put;
9995 }
9996
a32c055f
WB		 9997 /* set SIS 32 or SIS 64 */
9998 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9999 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 10000 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 10001 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 10002
5469cb5b
BK		 10003 if (ipr_transop_timeout)
10004 ioa_cfg->transop_timeout = ipr_transop_timeout;
10005 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10006 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10007 else
10008 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10009
44c10138 10010 ioa_cfg->revid = pdev->revision;
463fc696 10011
6270e593
BK		 10012 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10013
1da177e4
LT		 10014 ipr_regs_pci = pci_resource_start(pdev, 0);
10015
10016 rc = pci_request_regions(pdev, IPR_NAME);
10017 if (rc < 0) {
10018 dev_err(&pdev->dev,
10019 "Couldn't register memory range of registers\n");
10020 goto out_scsi_host_put;
10021 }
10022
6270e593
BK		 10023 rc = pci_enable_device(pdev);
10024
10025 if (rc || pci_channel_offline(pdev)) {
10026 if (pci_channel_offline(pdev)) {
10027 ipr_wait_for_pci_err_recovery(ioa_cfg);
10028 rc = pci_enable_device(pdev);
10029 }
10030
10031 if (rc) {
10032 dev_err(&pdev->dev, "Cannot enable adapter\n");
10033 ipr_wait_for_pci_err_recovery(ioa_cfg);
10034 goto out_release_regions;
10035 }
10036 }
10037
25729a7f 10038 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 10039
10040 if (!ipr_regs) {
10041 dev_err(&pdev->dev,
10042 "Couldn't map memory range of registers\n");
10043 rc = -ENOMEM;
6270e593 10044 goto out_disable;
1da177e4
LT		 10045 }
10046
10047 ioa_cfg->hdw_dma_regs = ipr_regs;
10048 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10049 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10050
6270e593 10051 ipr_init_regs(ioa_cfg);
1da177e4 10052
a32c055f 10053 if (ioa_cfg->sis64) {
869404cb 10054 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 10055 if (rc < 0) {
869404cb
AB		 10056 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10057 rc = dma_set_mask_and_coherent(&pdev->dev,
10058 DMA_BIT_MASK(32));
a32c055f 10059 }
a32c055f 10060 } else
869404cb 10061 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 10062
1da177e4 10063 if (rc < 0) {
869404cb 10064 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 10065 goto cleanup_nomem;
10066 }
10067
10068 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10069 ioa_cfg->chip_cfg->cache_line_size);
10070
10071 if (rc != PCIBIOS_SUCCESSFUL) {
10072 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 10073 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 10074 rc = -EIO;
10075 goto cleanup_nomem;
10076 }
10077
6270e593
BK		 10078 /* Issue MMIO read to ensure card is not in EEH */
10079 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10080 ipr_wait_for_pci_err_recovery(ioa_cfg);
10081
05a6538a 10082 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10083 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10084 IPR_MAX_MSIX_VECTORS);
10085 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10086 }
10087
10088 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 10089 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 10090 ioa_cfg->intr_flag = IPR_USE_MSIX;
10091 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 10092 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 10093 ioa_cfg->intr_flag = IPR_USE_MSI;
10094 else {
10095 ioa_cfg->intr_flag = IPR_USE_LSI;
54e430bb 10096 ioa_cfg->clear_isr = 1;
05a6538a 10097 ioa_cfg->nvectors = 1;
10098 dev_info(&pdev->dev, "Cannot enable MSI.\n");
10099 }
10100
6270e593
BK		 10101 pci_set_master(pdev);
10102
10103 if (pci_channel_offline(pdev)) {
10104 ipr_wait_for_pci_err_recovery(ioa_cfg);
10105 pci_set_master(pdev);
10106 if (pci_channel_offline(pdev)) {
10107 rc = -EIO;
10108 goto out_msi_disable;
10109 }
10110 }
10111
05a6538a 10112 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
10113 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 10114 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 10115 if (rc == -EOPNOTSUPP) {
6270e593 10116 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 10117 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
10118 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
10119 pci_disable_msi(pdev);
10120 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
10121 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
10122 pci_disable_msix(pdev);
10123 }
10124
10125 ioa_cfg->intr_flag = IPR_USE_LSI;
10126 ioa_cfg->nvectors = 1;
10127 }
95fecd90
WB		 10128 else if (rc)
10129 goto out_msi_disable;
05a6538a 10130 else {
10131 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10132 dev_info(&pdev->dev,
10133 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10134 ioa_cfg->nvectors, pdev->irq);
10135 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10136 dev_info(&pdev->dev,
10137 "Request for %d MSIXs succeeded.",
10138 ioa_cfg->nvectors);
10139 }
10140 }
10141
10142 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10143 (unsigned int)num_online_cpus(),
10144 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 10145
1da177e4 10146 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 10147 goto out_msi_disable;
1da177e4
LT		 10148
10149 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 10150 goto out_msi_disable;
1da177e4
LT		 10151
10152 rc = ipr_alloc_mem(ioa_cfg);
10153 if (rc < 0) {
10154 dev_err(&pdev->dev,
10155 "Couldn't allocate enough memory for device driver!\n");
f170c684 10156 goto out_msi_disable;
1da177e4
LT		 10157 }
10158
6270e593
BK		 10159 /* Save away PCI config space for use following IOA reset */
10160 rc = pci_save_state(pdev);
10161
10162 if (rc != PCIBIOS_SUCCESSFUL) {
10163 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10164 rc = -EIO;
10165 goto cleanup_nolog;
10166 }
10167
ce155cce
BK		 10168 /*
10169 * If HRRQ updated interrupt is not masked, or reset alert is set,
10170 * the card is in an unknown state and needs a hard reset
10171 */
214777ba
WB		 10172 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10173 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10174 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 10175 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10176 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 10177 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 10178 ioa_cfg->needs_hard_reset = 1;
10179 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10180 ioa_cfg->ioa_unit_checked = 1;
ce155cce 10181
56d6aa33 10182 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10183 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 10184 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10185
05a6538a 10186 if (ioa_cfg->intr_flag == IPR_USE_MSI
10187 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10188 name_msi_vectors(ioa_cfg);
10189 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10190 0,
10191 ioa_cfg->vectors_info[0].desc,
10192 &ioa_cfg->hrrq[0]);
10193 if (!rc)
10194 rc = ipr_request_other_msi_irqs(ioa_cfg);
10195 } else {
10196 rc = request_irq(pdev->irq, ipr_isr,
10197 IRQF_SHARED,
10198 IPR_NAME, &ioa_cfg->hrrq[0]);
10199 }
1da177e4
LT		 10200 if (rc) {
10201 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10202 pdev->irq, rc);
10203 goto cleanup_nolog;
10204 }
10205
463fc696
BK		 10206 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10207 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10208 ioa_cfg->needs_warm_reset = 1;
10209 ioa_cfg->reset = ipr_reset_slot_reset;
2796ca5e
BK		 10210
10211 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10212 WQ_MEM_RECLAIM, host->host_no);
10213
10214 if (!ioa_cfg->reset_work_q) {
10215 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10216 goto out_free_irq;
10217 }
463fc696
BK		 10218 } else
10219 ioa_cfg->reset = ipr_reset_start_bist;
10220
feccada9 10221 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10222 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 10223 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10224
10225 LEAVE;
10226out:
10227 return rc;
10228
2796ca5e
BK		 10229out_free_irq:
10230 ipr_free_irqs(ioa_cfg);
1da177e4
LT		 10231cleanup_nolog:
10232 ipr_free_mem(ioa_cfg);
95fecd90 10233out_msi_disable:
6270e593 10234 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 10235 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10236 pci_disable_msi(pdev);
10237 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10238 pci_disable_msix(pdev);
f170c684
JL		 10239cleanup_nomem:
10240 iounmap(ipr_regs);
6270e593
BK		 10241out_disable:
10242 pci_disable_device(pdev);
1da177e4
LT		 10243out_release_regions:
10244 pci_release_regions(pdev);
10245out_scsi_host_put:
10246 scsi_host_put(host);
1da177e4
LT		 10247 goto out;
10248}
10249
1da177e4
LT		 10250/**
10251 * ipr_initiate_ioa_bringdown - Bring down an adapter
10252 * @ioa_cfg: ioa config struct
10253 * @shutdown_type: shutdown type
10254 *
10255 * Description: This function will initiate bringing down the adapter.
10256 * This consists of issuing an IOA shutdown to the adapter
10257 * to flush the cache, and running BIST.
10258 * If the caller needs to wait on the completion of the reset,
10259 * the caller must sleep on the reset_wait_q.
10260 *
10261 * Return value:
10262 * none
10263 **/
10264static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10265 enum ipr_shutdown_type shutdown_type)
10266{
10267 ENTER;
10268 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10269 ioa_cfg->sdt_state = ABORT_DUMP;
10270 ioa_cfg->reset_retries = 0;
10271 ioa_cfg->in_ioa_bringdown = 1;
10272 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10273 LEAVE;
10274}
10275
10276/**
10277 * __ipr_remove - Remove a single adapter
10278 * @pdev: pci device struct
10279 *
10280 * Adapter hot plug remove entry point.
10281 *
10282 * Return value:
10283 * none
10284 **/
10285static void __ipr_remove(struct pci_dev *pdev)
10286{
10287 unsigned long host_lock_flags = 0;
10288 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 10289 int i;
feccada9 10290 unsigned long driver_lock_flags;
1da177e4
LT		 10291 ENTER;
10292
10293 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 10294 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10295 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10296 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10297 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10298 }
10299
bfae7820
BK		 10300 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10301 spin_lock(&ioa_cfg->hrrq[i]._lock);
10302 ioa_cfg->hrrq[i].removing_ioa = 1;
10303 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10304 }
10305 wmb();
1da177e4
LT		 10306 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10307
10308 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10309 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 10310 flush_work(&ioa_cfg->work_q);
2796ca5e
BK		 10311 if (ioa_cfg->reset_work_q)
10312 flush_workqueue(ioa_cfg->reset_work_q);
9077a944 10313 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 10314 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10315
feccada9 10316 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10317 list_del(&ioa_cfg->queue);
feccada9 10318 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10319
10320 if (ioa_cfg->sdt_state == ABORT_DUMP)
10321 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10322 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10323
10324 ipr_free_all_resources(ioa_cfg);
10325
10326 LEAVE;
10327}
10328
10329/**
10330 * ipr_remove - IOA hot plug remove entry point
10331 * @pdev: pci device struct
10332 *
10333 * Adapter hot plug remove entry point.
10334 *
10335 * Return value:
10336 * none
10337 **/
6f039790 10338static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 10339{
10340 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10341
10342 ENTER;
10343
ee959b00 10344 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10345 &ipr_trace_attr);
ee959b00 10346 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10347 &ipr_dump_attr);
10348 scsi_remove_host(ioa_cfg->host);
10349
10350 __ipr_remove(pdev);
10351
10352 LEAVE;
10353}
10354
10355/**
10356 * ipr_probe - Adapter hot plug add entry point
10357 *
10358 * Return value:
10359 * 0 on success / non-zero on failure
10360 **/
6f039790 10361static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 10362{
10363 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 10364 int rc, i;
1da177e4
LT		 10365
10366 rc = ipr_probe_ioa(pdev, dev_id);
10367
10368 if (rc)
10369 return rc;
10370
10371 ioa_cfg = pci_get_drvdata(pdev);
10372 rc = ipr_probe_ioa_part2(ioa_cfg);
10373
10374 if (rc) {
10375 __ipr_remove(pdev);
10376 return rc;
10377 }
10378
10379 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10380
10381 if (rc) {
10382 __ipr_remove(pdev);
10383 return rc;
10384 }
10385
ee959b00 10386 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10387 &ipr_trace_attr);
10388
10389 if (rc) {
10390 scsi_remove_host(ioa_cfg->host);
10391 __ipr_remove(pdev);
10392 return rc;
10393 }
10394
ee959b00 10395 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10396 &ipr_dump_attr);
10397
10398 if (rc) {
ee959b00 10399 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10400 &ipr_trace_attr);
10401 scsi_remove_host(ioa_cfg->host);
10402 __ipr_remove(pdev);
10403 return rc;
10404 }
10405
10406 scsi_scan_host(ioa_cfg->host);
b53d124a 10407 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10408
89f8b33c 10409 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10410 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
511cbce2 10411 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
b53d124a 10412 ioa_cfg->iopoll_weight, ipr_iopoll);
b53d124a 10413 }
10414 }
10415
1da177e4
LT		 10416 schedule_work(&ioa_cfg->work_q);
10417 return 0;
10418}
10419
10420/**
10421 * ipr_shutdown - Shutdown handler.
d18c3db5 10422 * @pdev: pci device struct
1da177e4
LT		 10423 *
10424 * This function is invoked upon system shutdown/reboot. It will issue
10425 * an adapter shutdown to the adapter to flush the write cache.
10426 *
10427 * Return value:
10428 * none
10429 **/
d18c3db5 10430static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 10431{
d18c3db5 10432 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 10433 unsigned long lock_flags = 0;
4fdd7c7a 10434 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
b53d124a 10435 int i;
1da177e4
LT		 10436
10437 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 10438 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10439 ioa_cfg->iopoll_weight = 0;
10440 for (i = 1; i < ioa_cfg->hrrq_num; i++)
511cbce2 10441 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
b53d124a 10442 }
10443
203fa3fe 10444 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10445 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10446 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10447 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10448 }
10449
4fdd7c7a
BK		 10450 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10451 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10452
10453 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
1da177e4
LT		 10454 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10455 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4fdd7c7a 10456 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
2796ca5e 10457 ipr_free_irqs(ioa_cfg);
4fdd7c7a
BK		 10458 pci_disable_device(ioa_cfg->pdev);
10459 }
1da177e4
LT		 10460}
10461
6f039790 10462static struct pci_device_id ipr_pci_table[] = {
1da177e4 10463 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10464 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10465 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10466 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10467 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10468 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10469 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10470 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10471 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10472 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10473 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10474 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10475 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10476 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10477 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10478 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10479 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10480 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10481 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10482 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10483 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10484 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10485 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10486 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10487 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10488 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10489 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10490 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10491 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10492 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10493 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10494 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10495 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10496 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10497 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10498 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10499 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10500 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10501 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10502 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10503 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10504 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10505 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10506 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10507 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10508 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10509 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10510 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10511 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10512 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10513 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10514 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10515 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10516 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10517 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10518 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10519 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10520 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10521 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10522 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10523 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10524 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10525 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10526 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10527 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10528 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10529 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10530 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10531 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10532 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10533 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10534 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10535 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10536 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10537 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10538 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10539 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10540 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10541 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10542 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10543 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10544 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10545 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10546 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10547 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10548 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10549 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10550 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10551 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10552 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10553 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10554 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10555 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10556 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10557 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10558 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10559 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10560 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10561 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10562 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10563 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10564 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10565 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10566 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10567 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
1da177e4
LT		 10568 { }
10569};
10570MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10571
a55b2d21 10572static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10573 .error_detected = ipr_pci_error_detected,
6270e593 10574 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10575 .slot_reset = ipr_pci_slot_reset,
10576};
10577
1da177e4
LT		 10578static struct pci_driver ipr_driver = {
10579 .name = IPR_NAME,
10580 .id_table = ipr_pci_table,
10581 .probe = ipr_probe,
6f039790 10582 .remove = ipr_remove,
d18c3db5 10583 .shutdown = ipr_shutdown,
f8a88b19 10584 .err_handler = &ipr_err_handler,
1da177e4
LT		 10585};
10586
f72919ec
WB		 10587/**
10588 * ipr_halt_done - Shutdown prepare completion
10589 *
10590 * Return value:
10591 * none
10592 **/
10593static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10594{
05a6538a 10595 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10596}
10597
10598/**
10599 * ipr_halt - Issue shutdown prepare to all adapters
10600 *
10601 * Return value:
10602 * NOTIFY_OK on success / NOTIFY_DONE on failure
10603 **/
10604static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10605{
10606 struct ipr_cmnd *ipr_cmd;
10607 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10608 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10609
10610 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10611 return NOTIFY_DONE;
10612
feccada9 10613 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10614
10615 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10616 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4fdd7c7a
BK		 10617 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10618 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
f72919ec
WB		 10619 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10620 continue;
10621 }
10622
10623 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10624 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10625 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10626 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10627 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10628
10629 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10630 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10631 }
feccada9 10632 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10633
10634 return NOTIFY_OK;
10635}
10636
10637static struct notifier_block ipr_notifier = {
10638 ipr_halt, NULL, 0
10639};
10640
1da177e4
LT		 10641/**
10642 * ipr_init - Module entry point
10643 *
10644 * Return value:
10645 * 0 on success / negative value on failure
10646 **/
10647static int __init ipr_init(void)
10648{
10649 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10650 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10651
f72919ec 10652 register_reboot_notifier(&ipr_notifier);
dcbccbde 10653 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10654}
10655
10656/**
10657 * ipr_exit - Module unload
10658 *
10659 * Module unload entry point.
10660 *
10661 * Return value:
10662 * none
10663 **/
10664static void __exit ipr_exit(void)
10665{
f72919ec 10666 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10667 pci_unregister_driver(&ipr_driver);
10668}
10669
10670module_init(ipr_init);
10671module_exit(ipr_exit);
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