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ipr: Fix locking for unit attention handling
[deliverable/linux.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
05a6538a 101static unsigned int ipr_number_of_msix = 2;
4fdd7c7a 102static unsigned int ipr_fast_reboot;
1da177e4
LT		 103static DEFINE_SPINLOCK(ipr_driver_lock);
104
105/* This table describes the differences between DMA controller chips */
106static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 107 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4 108 .mailbox = 0x0042C,
89aad428 109 .max_cmds = 100,
1da177e4 110 .cache_line_size = 0x20,
7dd21308 111 .clear_isr = 1,
b53d124a 112 .iopoll_weight = 0,
1da177e4
LT		 113 {
114 .set_interrupt_mask_reg = 0x0022C,
115 .clr_interrupt_mask_reg = 0x00230,
214777ba 116 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 117 .sense_interrupt_mask_reg = 0x0022C,
214777ba 118 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 119 .clr_interrupt_reg = 0x00228,
214777ba 120 .clr_interrupt_reg32 = 0x00228,
1da177e4 121 .sense_interrupt_reg = 0x00224,
214777ba 122 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 123 .ioarrin_reg = 0x00404,
124 .sense_uproc_interrupt_reg = 0x00214,
214777ba 125 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 126 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 127 .set_uproc_interrupt_reg32 = 0x00214,
128 .clr_uproc_interrupt_reg = 0x00218,
129 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 130 }
131 },
132 { /* Snipe and Scamp */
133 .mailbox = 0x0052C,
89aad428 134 .max_cmds = 100,
1da177e4 135 .cache_line_size = 0x20,
7dd21308 136 .clear_isr = 1,
b53d124a 137 .iopoll_weight = 0,
1da177e4
LT		 138 {
139 .set_interrupt_mask_reg = 0x00288,
140 .clr_interrupt_mask_reg = 0x0028C,
214777ba 141 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 142 .sense_interrupt_mask_reg = 0x00288,
214777ba 143 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 144 .clr_interrupt_reg = 0x00284,
214777ba 145 .clr_interrupt_reg32 = 0x00284,
1da177e4 146 .sense_interrupt_reg = 0x00280,
214777ba 147 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 148 .ioarrin_reg = 0x00504,
149 .sense_uproc_interrupt_reg = 0x00290,
214777ba 150 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 151 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 152 .set_uproc_interrupt_reg32 = 0x00290,
153 .clr_uproc_interrupt_reg = 0x00294,
154 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 155 }
156 },
a74c1639 157 { /* CRoC */
110def85 158 .mailbox = 0x00044,
89aad428 159 .max_cmds = 1000,
a74c1639 160 .cache_line_size = 0x20,
7dd21308 161 .clear_isr = 0,
b53d124a 162 .iopoll_weight = 64,
a74c1639
WB		 163 {
164 .set_interrupt_mask_reg = 0x00010,
165 .clr_interrupt_mask_reg = 0x00018,
214777ba 166 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 167 .sense_interrupt_mask_reg = 0x00010,
214777ba 168 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 169 .clr_interrupt_reg = 0x00008,
214777ba 170 .clr_interrupt_reg32 = 0x0000C,
a74c1639 171 .sense_interrupt_reg = 0x00000,
214777ba 172 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 173 .ioarrin_reg = 0x00070,
174 .sense_uproc_interrupt_reg = 0x00020,
214777ba 175 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 176 .set_uproc_interrupt_reg = 0x00020,
214777ba 177 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 178 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 179 .clr_uproc_interrupt_reg32 = 0x0002C,
180 .init_feedback_reg = 0x0005C,
dcbad00e 181 .dump_addr_reg = 0x00064,
8701f185
WB		 182 .dump_data_reg = 0x00068,
183 .endian_swap_reg = 0x00084
a74c1639
WB		 184 }
185 },
1da177e4
LT		 186};
187
188static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 198};
199
203fa3fe 200static int ipr_max_bus_speeds[] = {
1da177e4
LT		 201 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
202};
203
204MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
205MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
206module_param_named(max_speed, ipr_max_speed, uint, 0);
207MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
208module_param_named(log_level, ipr_log_level, uint, 0);
209MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
210module_param_named(testmode, ipr_testmode, int, 0);
211MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 212module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 213MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
214module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
215MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 216module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 217MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 218module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
219MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 220module_param_named(max_devs, ipr_max_devs, int, 0);
221MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
222 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 223module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
6634ff7c 224MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
4fdd7c7a
BK		 225module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
226MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
1da177e4
LT		 227MODULE_LICENSE("GPL");
228MODULE_VERSION(IPR_DRIVER_VERSION);
229
1da177e4
LT		 230/* A constant array of IOASCs/URCs/Error Messages */
231static const
232struct ipr_error_table_t ipr_error_table[] = {
933916f3 233 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 234 "8155: An unknown error was received"},
235 {0x00330000, 0, 0,
236 "Soft underlength error"},
237 {0x005A0000, 0, 0,
238 "Command to be cancelled not found"},
239 {0x00808000, 0, 0,
240 "Qualified success"},
933916f3 241 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 242 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 243 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 244 "4101: Soft device bus fabric error"},
5aa3a333
WB		 245 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFC: Logical block guard error recovered by the device"},
247 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
248 "FFFC: Logical block reference tag error recovered by the device"},
249 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
250 "4171: Recovered scatter list tag / sequence number error"},
251 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
253 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
254 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
255 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
256 "FFFD: Recovered logical block reference tag error detected by the IOA"},
257 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 259 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 260 "FFF9: Device sector reassign successful"},
933916f3 261 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 262 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 263 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 264 "7001: IOA sector reassignment successful"},
933916f3 265 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 266 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 267 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 268 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 269 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 270 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 271 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 272 "FFF6: Device hardware error recovered by the IOA"},
933916f3 273 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 274 "FFF6: Device hardware error recovered by the device"},
933916f3 275 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 276 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 277 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 278 "FFFA: Undefined device response recovered by the IOA"},
933916f3 279 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 280 "FFF6: Device bus error, message or command phase"},
933916f3 281 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 282 "FFFE: Task Management Function failed"},
933916f3 283 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 284 "FFF6: Failure prediction threshold exceeded"},
933916f3 285 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 286 "8009: Impending cache battery pack failure"},
ed7bd661 287 {0x02040100, 0, 0,
288 "Logical Unit in process of becoming ready"},
289 {0x02040200, 0, 0,
290 "Initializing command required"},
1da177e4
LT		 291 {0x02040400, 0, 0,
292 "34FF: Disk device format in progress"},
ed7bd661 293 {0x02040C00, 0, 0,
294 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 295 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
296 "9070: IOA requested reset"},
1da177e4
LT		 297 {0x023F0000, 0, 0,
298 "Synchronization required"},
ed7bd661 299 {0x02408500, 0, 0,
300 "IOA microcode download required"},
301 {0x02408600, 0, 0,
302 "Device bus connection is prohibited by host"},
1da177e4
LT		 303 {0x024E0000, 0, 0,
304 "No ready, IOA shutdown"},
305 {0x025A0000, 0, 0,
306 "Not ready, IOA has been shutdown"},
933916f3 307 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 308 "3020: Storage subsystem configuration error"},
309 {0x03110B00, 0, 0,
310 "FFF5: Medium error, data unreadable, recommend reassign"},
311 {0x03110C00, 0, 0,
312 "7000: Medium error, data unreadable, do not reassign"},
933916f3 313 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 314 "FFF3: Disk media format bad"},
933916f3 315 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 316 "3002: Addressed device failed to respond to selection"},
933916f3 317 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 318 "3100: Device bus error"},
933916f3 319 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 320 "3109: IOA timed out a device command"},
321 {0x04088000, 0, 0,
322 "3120: SCSI bus is not operational"},
933916f3 323 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 324 "4100: Hard device bus fabric error"},
5aa3a333
WB		 325 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
326 "310C: Logical block guard error detected by the device"},
327 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
328 "310C: Logical block reference tag error detected by the device"},
329 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
330 "4170: Scatter list tag / sequence number error"},
331 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: Logical block CRC error on IOA to Host transfer"},
333 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
334 "4170: Logical block sequence number error on IOA to Host transfer"},
335 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "310D: Logical block reference tag error detected by the IOA"},
337 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "310D: Logical block guard error detected by the IOA"},
933916f3 339 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 340 "9000: IOA reserved area data check"},
933916f3 341 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 342 "9001: IOA reserved area invalid data pattern"},
933916f3 343 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 344 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 345 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
346 "Hardware Error, IOA metadata access error"},
933916f3 347 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 348 "102E: Out of alternate sectors for disk storage"},
933916f3 349 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 350 "FFF4: Data transfer underlength error"},
933916f3 351 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 352 "FFF4: Data transfer overlength error"},
933916f3 353 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 354 "3400: Logical unit failure"},
933916f3 355 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 356 "FFF4: Device microcode is corrupt"},
933916f3 357 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 358 "8150: PCI bus error"},
359 {0x04430000, 1, 0,
360 "Unsupported device bus message received"},
933916f3 361 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 362 "FFF4: Disk device problem"},
933916f3 363 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 364 "8150: Permanent IOA failure"},
933916f3 365 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 366 "3010: Disk device returned wrong response to IOA"},
933916f3 367 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 368 "8151: IOA microcode error"},
369 {0x04448500, 0, 0,
370 "Device bus status error"},
933916f3 371 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 372 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 373 {0x04448700, 0, 0,
374 "ATA device status error"},
1da177e4
LT		 375 {0x04490000, 0, 0,
376 "Message reject received from the device"},
933916f3 377 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 378 "8008: A permanent cache battery pack failure occurred"},
933916f3 379 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 380 "9090: Disk unit has been modified after the last known status"},
933916f3 381 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 382 "9081: IOA detected device error"},
933916f3 383 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 384 "9082: IOA detected device error"},
933916f3 385 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 386 "3110: Device bus error, message or command phase"},
933916f3 387 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 388 "3110: SAS Command / Task Management Function failed"},
933916f3 389 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 390 "9091: Incorrect hardware configuration change has been detected"},
933916f3 391 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 392 "9073: Invalid multi-adapter configuration"},
933916f3 393 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 394 "4010: Incorrect connection between cascaded expanders"},
933916f3 395 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 396 "4020: Connections exceed IOA design limits"},
933916f3 397 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 398 "4030: Incorrect multipath connection"},
933916f3 399 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 400 "4110: Unsupported enclosure function"},
ed7bd661 401 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
402 "4120: SAS cable VPD cannot be read"},
933916f3 403 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 404 "FFF4: Command to logical unit failed"},
405 {0x05240000, 1, 0,
406 "Illegal request, invalid request type or request packet"},
407 {0x05250000, 0, 0,
408 "Illegal request, invalid resource handle"},
b0df54bb 409 {0x05258000, 0, 0,
410 "Illegal request, commands not allowed to this device"},
411 {0x05258100, 0, 0,
412 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 413 {0x05258200, 0, 0,
414 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 415 {0x05260000, 0, 0,
416 "Illegal request, invalid field in parameter list"},
417 {0x05260100, 0, 0,
418 "Illegal request, parameter not supported"},
419 {0x05260200, 0, 0,
420 "Illegal request, parameter value invalid"},
421 {0x052C0000, 0, 0,
422 "Illegal request, command sequence error"},
b0df54bb 423 {0x052C8000, 1, 0,
424 "Illegal request, dual adapter support not enabled"},
ed7bd661 425 {0x052C8100, 1, 0,
426 "Illegal request, another cable connector was physically disabled"},
427 {0x054E8000, 1, 0,
428 "Illegal request, inconsistent group id/group count"},
933916f3 429 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 430 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 431 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 432 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 433 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4080: IOA exceeded maximum operating temperature"},
435 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4085: Service required"},
933916f3 437 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 438 "3140: Device bus not ready to ready transition"},
933916f3 439 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 440 "FFFB: SCSI bus was reset"},
441 {0x06290500, 0, 0,
442 "FFFE: SCSI bus transition to single ended"},
443 {0x06290600, 0, 0,
444 "FFFE: SCSI bus transition to LVD"},
933916f3 445 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 446 "FFFB: SCSI bus was reset by another initiator"},
933916f3 447 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 448 "3029: A device replacement has occurred"},
ed7bd661 449 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
450 "4102: Device bus fabric performance degradation"},
933916f3 451 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 452 "9051: IOA cache data exists for a missing or failed device"},
933916f3 453 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 454 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 455 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 456 "9025: Disk unit is not supported at its physical location"},
933916f3 457 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 458 "3020: IOA detected a SCSI bus configuration error"},
933916f3 459 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 460 "3150: SCSI bus configuration error"},
933916f3 461 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 462 "9074: Asymmetric advanced function disk configuration"},
933916f3 463 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 464 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 465 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 466 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 467 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 468 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 469 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 470 "9076: Configuration error, missing remote IOA"},
933916f3 471 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 472 "4050: Enclosure does not support a required multipath function"},
ed7bd661 473 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
474 "4121: Configuration error, required cable is missing"},
475 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
476 "4122: Cable is not plugged into the correct location on remote IOA"},
477 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "4123: Configuration error, invalid cable vital product data"},
479 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 481 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
482 "4070: Logically bad block written on device"},
933916f3 483 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 484 "9041: Array protection temporarily suspended"},
933916f3 485 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 486 "9042: Corrupt array parity detected on specified device"},
933916f3 487 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 488 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 489 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 490 "9071: Link operational transition"},
933916f3 491 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 492 "9072: Link not operational transition"},
933916f3 493 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 494 "9032: Array exposed but still protected"},
e435340c
BK		 495 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
496 "70DD: Device forced failed by disrupt device command"},
933916f3 497 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 498 "4061: Multipath redundancy level got better"},
933916f3 499 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 500 "4060: Multipath redundancy level got worse"},
f8ee25d7
WX		 501 {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL,
502 "9083: Device raw mode enabled"},
503 {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL,
504 "9084: Device raw mode disabled"},
1da177e4
LT		 505 {0x07270000, 0, 0,
506 "Failure due to other device"},
933916f3 507 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 508 "9008: IOA does not support functions expected by devices"},
933916f3 509 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 510 "9010: Cache data associated with attached devices cannot be found"},
933916f3 511 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 512 "9011: Cache data belongs to devices other than those attached"},
933916f3 513 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 514 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 515 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 516 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 517 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 518 "9022: Exposed array is missing a required device"},
933916f3 519 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 520 "9023: Array member(s) not at required physical locations"},
933916f3 521 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 522 "9024: Array not functional due to present hardware configuration"},
933916f3 523 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 524 "9026: Array not functional due to present hardware configuration"},
933916f3 525 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 526 "9027: Array is missing a device and parity is out of sync"},
933916f3 527 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 528 "9028: Maximum number of arrays already exist"},
933916f3 529 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 530 "9050: Required cache data cannot be located for a disk unit"},
933916f3 531 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 532 "9052: Cache data exists for a device that has been modified"},
933916f3 533 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 534 "9054: IOA resources not available due to previous problems"},
933916f3 535 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 536 "9092: Disk unit requires initialization before use"},
933916f3 537 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 538 "9029: Incorrect hardware configuration change has been detected"},
933916f3 539 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 540 "9060: One or more disk pairs are missing from an array"},
933916f3 541 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 542 "9061: One or more disks are missing from an array"},
933916f3 543 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 544 "9062: One or more disks are missing from an array"},
933916f3 545 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 546 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 547 {0x07279A00, 0, 0,
548 "Data protect, other volume set problem"},
1da177e4
LT		 549 {0x0B260000, 0, 0,
550 "Aborted command, invalid descriptor"},
ed7bd661 551 {0x0B3F9000, 0, 0,
552 "Target operating conditions have changed, dual adapter takeover"},
553 {0x0B530200, 0, 0,
554 "Aborted command, medium removal prevented"},
1da177e4 555 {0x0B5A0000, 0, 0,
ed7bd661 556 "Command terminated by host"},
557 {0x0B5B8000, 0, 0,
558 "Aborted command, command terminated by host"}
1da177e4
LT		 559};
560
561static const struct ipr_ses_table_entry ipr_ses_table[] = {
562 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
563 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
565 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
566 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
567 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
568 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
569 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
571 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
573 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
574 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
575};
576
577/*
578 * Function Prototypes
579 */
580static int ipr_reset_alert(struct ipr_cmnd *);
581static void ipr_process_ccn(struct ipr_cmnd *);
582static void ipr_process_error(struct ipr_cmnd *);
583static void ipr_reset_ioa_job(struct ipr_cmnd *);
584static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
585 enum ipr_shutdown_type);
586
587#ifdef CONFIG_SCSI_IPR_TRACE
588/**
589 * ipr_trc_hook - Add a trace entry to the driver trace
590 * @ipr_cmd: ipr command struct
591 * @type: trace type
592 * @add_data: additional data
593 *
594 * Return value:
595 * none
596 **/
597static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
598 u8 type, u32 add_data)
599{
600 struct ipr_trace_entry *trace_entry;
601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
602
56d6aa33 603 trace_entry = &ioa_cfg->trace[atomic_add_return
604 (1, &ioa_cfg->trace_index)%IPR_NUM_TRACE_ENTRIES];
1da177e4
LT		 605 trace_entry->time = jiffies;
606 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
607 trace_entry->type = type;
a32c055f
WB		 608 if (ipr_cmd->ioa_cfg->sis64)
609 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
610 else
611 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 612 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 613 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
614 trace_entry->u.add_data = add_data;
56d6aa33 615 wmb();
1da177e4
LT		 616}
617#else
203fa3fe 618#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 619#endif
620
172cd6e1
BK		 621/**
622 * ipr_lock_and_done - Acquire lock and complete command
623 * @ipr_cmd: ipr command struct
624 *
625 * Return value:
626 * none
627 **/
628static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
629{
630 unsigned long lock_flags;
631 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
632
633 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
634 ipr_cmd->done(ipr_cmd);
635 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
636}
637
1da177e4
LT		 638/**
639 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
640 * @ipr_cmd: ipr command struct
641 *
642 * Return value:
643 * none
644 **/
645static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
646{
647 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 648 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
649 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 650 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 651 int hrrq_id;
1da177e4 652
05a6538a 653 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 654 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 655 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 656 ioarcb->data_transfer_length = 0;
1da177e4 657 ioarcb->read_data_transfer_length = 0;
a32c055f 658 ioarcb->ioadl_len = 0;
1da177e4 659 ioarcb->read_ioadl_len = 0;
a32c055f 660
96d21f00 661 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 662 ioarcb->u.sis64_addr_data.data_ioadl_addr =
663 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 664 ioasa64->u.gata.status = 0;
665 } else {
a32c055f
WB		 666 ioarcb->write_ioadl_addr =
667 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
668 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 669 ioasa->u.gata.status = 0;
a32c055f
WB		 670 }
671
96d21f00
WB		 672 ioasa->hdr.ioasc = 0;
673 ioasa->hdr.residual_data_len = 0;
1da177e4 674 ipr_cmd->scsi_cmd = NULL;
35a39691 675 ipr_cmd->qc = NULL;
1da177e4
LT		 676 ipr_cmd->sense_buffer[0] = 0;
677 ipr_cmd->dma_use_sg = 0;
678}
679
680/**
681 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
682 * @ipr_cmd: ipr command struct
683 *
684 * Return value:
685 * none
686 **/
172cd6e1
BK		 687static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
688 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 689{
690 ipr_reinit_ipr_cmnd(ipr_cmd);
691 ipr_cmd->u.scratch = 0;
692 ipr_cmd->sibling = NULL;
6cdb0817 693 ipr_cmd->eh_comp = NULL;
172cd6e1 694 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 695 init_timer(&ipr_cmd->timer);
696}
697
698/**
00bfef2c 699 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 700 * @ioa_cfg: ioa config struct
701 *
702 * Return value:
703 * pointer to ipr command struct
704 **/
705static
05a6538a 706struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 707{
05a6538a 708 struct ipr_cmnd *ipr_cmd = NULL;
709
710 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
711 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
712 struct ipr_cmnd, queue);
713 list_del(&ipr_cmd->queue);
714 }
1da177e4 715
1da177e4
LT		 716
717 return ipr_cmd;
718}
719
00bfef2c
BK		 720/**
721 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
722 * @ioa_cfg: ioa config struct
723 *
724 * Return value:
725 * pointer to ipr command struct
726 **/
727static
728struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
729{
05a6538a 730 struct ipr_cmnd *ipr_cmd =
731 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 732 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 733 return ipr_cmd;
734}
735
1da177e4
LT		 736/**
737 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
738 * @ioa_cfg: ioa config struct
739 * @clr_ints: interrupts to clear
740 *
741 * This function masks all interrupts on the adapter, then clears the
742 * interrupts specified in the mask
743 *
744 * Return value:
745 * none
746 **/
747static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
748 u32 clr_ints)
749{
750 volatile u32 int_reg;
56d6aa33 751 int i;
1da177e4
LT		 752
753 /* Stop new interrupts */
56d6aa33 754 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
755 spin_lock(&ioa_cfg->hrrq[i]._lock);
756 ioa_cfg->hrrq[i].allow_interrupts = 0;
757 spin_unlock(&ioa_cfg->hrrq[i]._lock);
758 }
759 wmb();
1da177e4
LT		 760
761 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 762 if (ioa_cfg->sis64)
763 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
764 else
765 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 766
767 /* Clear any pending interrupts */
214777ba
WB		 768 if (ioa_cfg->sis64)
769 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
770 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 771 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
772}
773
774/**
775 * ipr_save_pcix_cmd_reg - Save PCI-X command register
776 * @ioa_cfg: ioa config struct
777 *
778 * Return value:
779 * 0 on success / -EIO on failure
780 **/
781static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
782{
783 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
784
7dce0e1c
BK		 785 if (pcix_cmd_reg == 0)
786 return 0;
1da177e4
LT		 787
788 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
789 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
790 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
791 return -EIO;
792 }
793
794 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
795 return 0;
796}
797
798/**
799 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
800 * @ioa_cfg: ioa config struct
801 *
802 * Return value:
803 * 0 on success / -EIO on failure
804 **/
805static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
806{
807 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
808
809 if (pcix_cmd_reg) {
810 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
811 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
812 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
813 return -EIO;
814 }
1da177e4
LT		 815 }
816
817 return 0;
818}
819
35a39691
BK		 820/**
821 * ipr_sata_eh_done - done function for aborted SATA commands
822 * @ipr_cmd: ipr command struct
823 *
824 * This function is invoked for ops generated to SATA
825 * devices which are being aborted.
826 *
827 * Return value:
828 * none
829 **/
830static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
831{
35a39691
BK		 832 struct ata_queued_cmd *qc = ipr_cmd->qc;
833 struct ipr_sata_port *sata_port = qc->ap->private_data;
834
835 qc->err_mask |= AC_ERR_OTHER;
836 sata_port->ioasa.status |= ATA_BUSY;
05a6538a 837 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 838 ata_qc_complete(qc);
839}
840
1da177e4
LT		 841/**
842 * ipr_scsi_eh_done - mid-layer done function for aborted ops
843 * @ipr_cmd: ipr command struct
844 *
845 * This function is invoked by the interrupt handler for
846 * ops generated by the SCSI mid-layer which are being aborted.
847 *
848 * Return value:
849 * none
850 **/
851static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
852{
1da177e4
LT		 853 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
854
855 scsi_cmd->result |= (DID_ERROR << 16);
856
63015bc9 857 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 858 scsi_cmd->scsi_done(scsi_cmd);
6cdb0817
BK		 859 if (ipr_cmd->eh_comp)
860 complete(ipr_cmd->eh_comp);
05a6538a 861 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 862}
863
864/**
865 * ipr_fail_all_ops - Fails all outstanding ops.
866 * @ioa_cfg: ioa config struct
867 *
868 * This function fails all outstanding ops.
869 *
870 * Return value:
871 * none
872 **/
873static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
874{
875 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 876 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 877
878 ENTER;
05a6538a 879 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 880 spin_lock(&hrrq->_lock);
05a6538a 881 list_for_each_entry_safe(ipr_cmd,
882 temp, &hrrq->hrrq_pending_q, queue) {
883 list_del(&ipr_cmd->queue);
1da177e4 884
05a6538a 885 ipr_cmd->s.ioasa.hdr.ioasc =
886 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
887 ipr_cmd->s.ioasa.hdr.ilid =
888 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 889
05a6538a 890 if (ipr_cmd->scsi_cmd)
891 ipr_cmd->done = ipr_scsi_eh_done;
892 else if (ipr_cmd->qc)
893 ipr_cmd->done = ipr_sata_eh_done;
1da177e4 894
05a6538a 895 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
896 IPR_IOASC_IOA_WAS_RESET);
897 del_timer(&ipr_cmd->timer);
898 ipr_cmd->done(ipr_cmd);
899 }
56d6aa33 900 spin_unlock(&hrrq->_lock);
1da177e4 901 }
1da177e4
LT		 902 LEAVE;
903}
904
a32c055f
WB		 905/**
906 * ipr_send_command - Send driver initiated requests.
907 * @ipr_cmd: ipr command struct
908 *
909 * This function sends a command to the adapter using the correct write call.
910 * In the case of sis64, calculate the ioarcb size required. Then or in the
911 * appropriate bits.
912 *
913 * Return value:
914 * none
915 **/
916static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
917{
918 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
919 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
920
921 if (ioa_cfg->sis64) {
922 /* The default size is 256 bytes */
923 send_dma_addr |= 0x1;
924
925 /* If the number of ioadls * size of ioadl > 128 bytes,
926 then use a 512 byte ioarcb */
927 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
928 send_dma_addr |= 0x4;
929 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
930 } else
931 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
932}
933
1da177e4
LT		 934/**
935 * ipr_do_req - Send driver initiated requests.
936 * @ipr_cmd: ipr command struct
937 * @done: done function
938 * @timeout_func: timeout function
939 * @timeout: timeout value
940 *
941 * This function sends the specified command to the adapter with the
942 * timeout given. The done function is invoked on command completion.
943 *
944 * Return value:
945 * none
946 **/
947static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
948 void (*done) (struct ipr_cmnd *),
949 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
950{
05a6538a 951 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 952
953 ipr_cmd->done = done;
954
955 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
956 ipr_cmd->timer.expires = jiffies + timeout;
957 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
958
959 add_timer(&ipr_cmd->timer);
960
961 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
962
a32c055f 963 ipr_send_command(ipr_cmd);
1da177e4
LT		 964}
965
966/**
967 * ipr_internal_cmd_done - Op done function for an internally generated op.
968 * @ipr_cmd: ipr command struct
969 *
970 * This function is the op done function for an internally generated,
971 * blocking op. It simply wakes the sleeping thread.
972 *
973 * Return value:
974 * none
975 **/
976static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
977{
978 if (ipr_cmd->sibling)
979 ipr_cmd->sibling = NULL;
980 else
981 complete(&ipr_cmd->completion);
982}
983
a32c055f
WB		 984/**
985 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
986 * @ipr_cmd: ipr command struct
987 * @dma_addr: dma address
988 * @len: transfer length
989 * @flags: ioadl flag value
990 *
991 * This function initializes an ioadl in the case where there is only a single
992 * descriptor.
993 *
994 * Return value:
995 * nothing
996 **/
997static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
998 u32 len, int flags)
999{
1000 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1001 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1002
1003 ipr_cmd->dma_use_sg = 1;
1004
1005 if (ipr_cmd->ioa_cfg->sis64) {
1006 ioadl64->flags = cpu_to_be32(flags);
1007 ioadl64->data_len = cpu_to_be32(len);
1008 ioadl64->address = cpu_to_be64(dma_addr);
1009
1010 ipr_cmd->ioarcb.ioadl_len =
1011 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1012 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1013 } else {
1014 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1015 ioadl->address = cpu_to_be32(dma_addr);
1016
1017 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1018 ipr_cmd->ioarcb.read_ioadl_len =
1019 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1020 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1021 } else {
1022 ipr_cmd->ioarcb.ioadl_len =
1023 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1024 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1025 }
1026 }
1027}
1028
1da177e4
LT		 1029/**
1030 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1031 * @ipr_cmd: ipr command struct
1032 * @timeout_func: function to invoke if command times out
1033 * @timeout: timeout
1034 *
1035 * Return value:
1036 * none
1037 **/
1038static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1039 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1040 u32 timeout)
1041{
1042 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1043
1044 init_completion(&ipr_cmd->completion);
1045 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1046
1047 spin_unlock_irq(ioa_cfg->host->host_lock);
1048 wait_for_completion(&ipr_cmd->completion);
1049 spin_lock_irq(ioa_cfg->host->host_lock);
1050}
1051
05a6538a 1052static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1053{
1054 if (ioa_cfg->hrrq_num == 1)
56d6aa33 1055 return 0;
1056 else
1057 return (atomic_add_return(1, &ioa_cfg->hrrq_index) % (ioa_cfg->hrrq_num - 1)) + 1;
05a6538a 1058}
1059
1da177e4
LT		 1060/**
1061 * ipr_send_hcam - Send an HCAM to the adapter.
1062 * @ioa_cfg: ioa config struct
1063 * @type: HCAM type
1064 * @hostrcb: hostrcb struct
1065 *
1066 * This function will send a Host Controlled Async command to the adapter.
1067 * If HCAMs are currently not allowed to be issued to the adapter, it will
1068 * place the hostrcb on the free queue.
1069 *
1070 * Return value:
1071 * none
1072 **/
1073static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1074 struct ipr_hostrcb *hostrcb)
1075{
1076 struct ipr_cmnd *ipr_cmd;
1077 struct ipr_ioarcb *ioarcb;
1078
56d6aa33 1079 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1080 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1081 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1082 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1083
1084 ipr_cmd->u.hostrcb = hostrcb;
1085 ioarcb = &ipr_cmd->ioarcb;
1086
1087 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1088 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1089 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1090 ioarcb->cmd_pkt.cdb[1] = type;
1091 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1092 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1093
a32c055f
WB		 1094 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1095 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1096
1097 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1098 ipr_cmd->done = ipr_process_ccn;
1099 else
1100 ipr_cmd->done = ipr_process_error;
1101
1102 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1103
a32c055f 1104 ipr_send_command(ipr_cmd);
1da177e4
LT		 1105 } else {
1106 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1107 }
1108}
1109
3e7ebdfa
WB		 1110/**
1111 * ipr_update_ata_class - Update the ata class in the resource entry
1112 * @res: resource entry struct
1113 * @proto: cfgte device bus protocol value
1114 *
1115 * Return value:
1116 * none
1117 **/
1118static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1119{
203fa3fe 1120 switch (proto) {
3e7ebdfa
WB		 1121 case IPR_PROTO_SATA:
1122 case IPR_PROTO_SAS_STP:
1123 res->ata_class = ATA_DEV_ATA;
1124 break;
1125 case IPR_PROTO_SATA_ATAPI:
1126 case IPR_PROTO_SAS_STP_ATAPI:
1127 res->ata_class = ATA_DEV_ATAPI;
1128 break;
1129 default:
1130 res->ata_class = ATA_DEV_UNKNOWN;
1131 break;
1132 };
1133}
1134
1da177e4
LT		 1135/**
1136 * ipr_init_res_entry - Initialize a resource entry struct.
1137 * @res: resource entry struct
3e7ebdfa 1138 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1139 *
1140 * Return value:
1141 * none
1142 **/
3e7ebdfa
WB		 1143static void ipr_init_res_entry(struct ipr_resource_entry *res,
1144 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1145{
3e7ebdfa
WB		 1146 int found = 0;
1147 unsigned int proto;
1148 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1149 struct ipr_resource_entry *gscsi_res = NULL;
1150
ee0a90fa 1151 res->needs_sync_complete = 0;
1da177e4
LT		 1152 res->in_erp = 0;
1153 res->add_to_ml = 0;
1154 res->del_from_ml = 0;
1155 res->resetting_device = 0;
0b1f8d44 1156 res->reset_occurred = 0;
1da177e4 1157 res->sdev = NULL;
35a39691 1158 res->sata_port = NULL;
3e7ebdfa
WB		 1159
1160 if (ioa_cfg->sis64) {
1161 proto = cfgtew->u.cfgte64->proto;
1162 res->res_flags = cfgtew->u.cfgte64->res_flags;
1163 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1164 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1165
1166 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1167 sizeof(res->res_path));
1168
1169 res->bus = 0;
0cb992ed
WB		 1170 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1171 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1172 res->lun = scsilun_to_int(&res->dev_lun);
1173
1174 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1175 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1176 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1177 found = 1;
1178 res->target = gscsi_res->target;
1179 break;
1180 }
1181 }
1182 if (!found) {
1183 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1184 ioa_cfg->max_devs_supported);
1185 set_bit(res->target, ioa_cfg->target_ids);
1186 }
3e7ebdfa
WB		 1187 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1188 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1189 res->target = 0;
1190 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1191 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1192 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1193 ioa_cfg->max_devs_supported);
1194 set_bit(res->target, ioa_cfg->array_ids);
1195 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1196 res->bus = IPR_VSET_VIRTUAL_BUS;
1197 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1198 ioa_cfg->max_devs_supported);
1199 set_bit(res->target, ioa_cfg->vset_ids);
1200 } else {
1201 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1202 ioa_cfg->max_devs_supported);
1203 set_bit(res->target, ioa_cfg->target_ids);
1204 }
1205 } else {
1206 proto = cfgtew->u.cfgte->proto;
1207 res->qmodel = IPR_QUEUEING_MODEL(res);
1208 res->flags = cfgtew->u.cfgte->flags;
1209 if (res->flags & IPR_IS_IOA_RESOURCE)
1210 res->type = IPR_RES_TYPE_IOAFP;
1211 else
1212 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1213
1214 res->bus = cfgtew->u.cfgte->res_addr.bus;
1215 res->target = cfgtew->u.cfgte->res_addr.target;
1216 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1217 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1218 }
1219
1220 ipr_update_ata_class(res, proto);
1221}
1222
1223/**
1224 * ipr_is_same_device - Determine if two devices are the same.
1225 * @res: resource entry struct
1226 * @cfgtew: config table entry wrapper struct
1227 *
1228 * Return value:
1229 * 1 if the devices are the same / 0 otherwise
1230 **/
1231static int ipr_is_same_device(struct ipr_resource_entry *res,
1232 struct ipr_config_table_entry_wrapper *cfgtew)
1233{
1234 if (res->ioa_cfg->sis64) {
1235 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1236 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1237 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1238 sizeof(cfgtew->u.cfgte64->lun))) {
1239 return 1;
1240 }
1241 } else {
1242 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1243 res->target == cfgtew->u.cfgte->res_addr.target &&
1244 res->lun == cfgtew->u.cfgte->res_addr.lun)
1245 return 1;
1246 }
1247
1248 return 0;
1249}
1250
1251/**
b3b3b407 1252 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1253 * @res_path: resource path
1254 * @buf: buffer
b3b3b407 1255 * @len: length of buffer provided
3e7ebdfa
WB		 1256 *
1257 * Return value:
1258 * pointer to buffer
1259 **/
b3b3b407 1260static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1261{
1262 int i;
5adcbeb3 1263 char *p = buffer;
3e7ebdfa 1264
46d74563 1265 *p = '\0';
5adcbeb3
WB		 1266 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1267 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1268 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1269
1270 return buffer;
1271}
1272
b3b3b407
BK		 1273/**
1274 * ipr_format_res_path - Format the resource path for printing.
1275 * @ioa_cfg: ioa config struct
1276 * @res_path: resource path
1277 * @buf: buffer
1278 * @len: length of buffer provided
1279 *
1280 * Return value:
1281 * pointer to buffer
1282 **/
1283static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1284 u8 *res_path, char *buffer, int len)
1285{
1286 char *p = buffer;
1287
1288 *p = '\0';
1289 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1290 __ipr_format_res_path(res_path, p, len - (buffer - p));
1291 return buffer;
1292}
1293
3e7ebdfa
WB		 1294/**
1295 * ipr_update_res_entry - Update the resource entry.
1296 * @res: resource entry struct
1297 * @cfgtew: config table entry wrapper struct
1298 *
1299 * Return value:
1300 * none
1301 **/
1302static void ipr_update_res_entry(struct ipr_resource_entry *res,
1303 struct ipr_config_table_entry_wrapper *cfgtew)
1304{
1305 char buffer[IPR_MAX_RES_PATH_LENGTH];
1306 unsigned int proto;
1307 int new_path = 0;
1308
1309 if (res->ioa_cfg->sis64) {
1310 res->flags = cfgtew->u.cfgte64->flags;
1311 res->res_flags = cfgtew->u.cfgte64->res_flags;
75576bb9 1312 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1313
1314 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1315 sizeof(struct ipr_std_inq_data));
1316
1317 res->qmodel = IPR_QUEUEING_MODEL64(res);
1318 proto = cfgtew->u.cfgte64->proto;
1319 res->res_handle = cfgtew->u.cfgte64->res_handle;
1320 res->dev_id = cfgtew->u.cfgte64->dev_id;
1321
1322 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1323 sizeof(res->dev_lun.scsi_lun));
1324
1325 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1326 sizeof(res->res_path))) {
1327 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1328 sizeof(res->res_path));
1329 new_path = 1;
1330 }
1331
1332 if (res->sdev && new_path)
1333 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1334 ipr_format_res_path(res->ioa_cfg,
1335 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1336 } else {
1337 res->flags = cfgtew->u.cfgte->flags;
1338 if (res->flags & IPR_IS_IOA_RESOURCE)
1339 res->type = IPR_RES_TYPE_IOAFP;
1340 else
1341 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1342
1343 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1344 sizeof(struct ipr_std_inq_data));
1345
1346 res->qmodel = IPR_QUEUEING_MODEL(res);
1347 proto = cfgtew->u.cfgte->proto;
1348 res->res_handle = cfgtew->u.cfgte->res_handle;
1349 }
1350
1351 ipr_update_ata_class(res, proto);
1352}
1353
1354/**
1355 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1356 * for the resource.
1357 * @res: resource entry struct
1358 * @cfgtew: config table entry wrapper struct
1359 *
1360 * Return value:
1361 * none
1362 **/
1363static void ipr_clear_res_target(struct ipr_resource_entry *res)
1364{
1365 struct ipr_resource_entry *gscsi_res = NULL;
1366 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1367
1368 if (!ioa_cfg->sis64)
1369 return;
1370
1371 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1372 clear_bit(res->target, ioa_cfg->array_ids);
1373 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1374 clear_bit(res->target, ioa_cfg->vset_ids);
1375 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1376 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1377 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1378 return;
1379 clear_bit(res->target, ioa_cfg->target_ids);
1380
1381 } else if (res->bus == 0)
1382 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1383}
1384
1385/**
1386 * ipr_handle_config_change - Handle a config change from the adapter
1387 * @ioa_cfg: ioa config struct
1388 * @hostrcb: hostrcb
1389 *
1390 * Return value:
1391 * none
1392 **/
1393static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1394 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1395{
1396 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1397 struct ipr_config_table_entry_wrapper cfgtew;
1398 __be32 cc_res_handle;
1399
1da177e4
LT		 1400 u32 is_ndn = 1;
1401
3e7ebdfa
WB		 1402 if (ioa_cfg->sis64) {
1403 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1404 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1405 } else {
1406 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1407 cc_res_handle = cfgtew.u.cfgte->res_handle;
1408 }
1da177e4
LT		 1409
1410 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1411 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1412 is_ndn = 0;
1413 break;
1414 }
1415 }
1416
1417 if (is_ndn) {
1418 if (list_empty(&ioa_cfg->free_res_q)) {
1419 ipr_send_hcam(ioa_cfg,
1420 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1421 hostrcb);
1422 return;
1423 }
1424
1425 res = list_entry(ioa_cfg->free_res_q.next,
1426 struct ipr_resource_entry, queue);
1427
1428 list_del(&res->queue);
3e7ebdfa 1429 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1430 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1431 }
1432
3e7ebdfa 1433 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1434
1435 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1436 if (res->sdev) {
1da177e4 1437 res->del_from_ml = 1;
3e7ebdfa 1438 res->res_handle = IPR_INVALID_RES_HANDLE;
f688f96d 1439 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1440 } else {
1441 ipr_clear_res_target(res);
1da177e4 1442 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1443 }
5767a1c4 1444 } else if (!res->sdev || res->del_from_ml) {
1da177e4 1445 res->add_to_ml = 1;
f688f96d 1446 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 1447 }
1448
1449 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1450}
1451
1452/**
1453 * ipr_process_ccn - Op done function for a CCN.
1454 * @ipr_cmd: ipr command struct
1455 *
1456 * This function is the op done function for a configuration
1457 * change notification host controlled async from the adapter.
1458 *
1459 * Return value:
1460 * none
1461 **/
1462static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1463{
1464 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1465 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1466 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1467
1468 list_del(&hostrcb->queue);
05a6538a 1469 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1470
1471 if (ioasc) {
4fdd7c7a
BK		 1472 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1473 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1da177e4
LT		 1474 dev_err(&ioa_cfg->pdev->dev,
1475 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1476
1477 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1478 } else {
1479 ipr_handle_config_change(ioa_cfg, hostrcb);
1480 }
1481}
1482
8cf093e2
BK		 1483/**
1484 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1485 * @i: index into buffer
1486 * @buf: string to modify
1487 *
1488 * This function will strip all trailing whitespace, pad the end
1489 * of the string with a single space, and NULL terminate the string.
1490 *
1491 * Return value:
1492 * new length of string
1493 **/
1494static int strip_and_pad_whitespace(int i, char *buf)
1495{
1496 while (i && buf[i] == ' ')
1497 i--;
1498 buf[i+1] = ' ';
1499 buf[i+2] = '\0';
1500 return i + 2;
1501}
1502
1503/**
1504 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1505 * @prefix: string to print at start of printk
1506 * @hostrcb: hostrcb pointer
1507 * @vpd: vendor/product id/sn struct
1508 *
1509 * Return value:
1510 * none
1511 **/
1512static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1513 struct ipr_vpd *vpd)
1514{
1515 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1516 int i = 0;
1517
1518 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1519 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1520
1521 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1522 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1523
1524 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1525 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1526
1527 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1528}
1529
1da177e4
LT		 1530/**
1531 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1532 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1533 *
1534 * Return value:
1535 * none
1536 **/
cfc32139 1537static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1538{
1539 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1540 + IPR_SERIAL_NUM_LEN];
1541
cfc32139 1542 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1543 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1544 IPR_PROD_ID_LEN);
1545 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1546 ipr_err("Vendor/Product ID: %s\n", buffer);
1547
cfc32139 1548 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1549 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1550 ipr_err(" Serial Number: %s\n", buffer);
1551}
1552
8cf093e2
BK		 1553/**
1554 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1555 * @prefix: string to print at start of printk
1556 * @hostrcb: hostrcb pointer
1557 * @vpd: vendor/product id/sn/wwn struct
1558 *
1559 * Return value:
1560 * none
1561 **/
1562static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1563 struct ipr_ext_vpd *vpd)
1564{
1565 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1566 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1567 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1568}
1569
ee0f05b8 1570/**
1571 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1572 * @vpd: vendor/product id/sn/wwn struct
1573 *
1574 * Return value:
1575 * none
1576 **/
1577static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1578{
1579 ipr_log_vpd(&vpd->vpd);
1580 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1581 be32_to_cpu(vpd->wwid[1]));
1582}
1583
1584/**
1585 * ipr_log_enhanced_cache_error - Log a cache error.
1586 * @ioa_cfg: ioa config struct
1587 * @hostrcb: hostrcb struct
1588 *
1589 * Return value:
1590 * none
1591 **/
1592static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1593 struct ipr_hostrcb *hostrcb)
1594{
4565e370
WB		 1595 struct ipr_hostrcb_type_12_error *error;
1596
1597 if (ioa_cfg->sis64)
1598 error = &hostrcb->hcam.u.error64.u.type_12_error;
1599 else
1600 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8 1601
1602 ipr_err("-----Current Configuration-----\n");
1603 ipr_err("Cache Directory Card Information:\n");
1604 ipr_log_ext_vpd(&error->ioa_vpd);
1605 ipr_err("Adapter Card Information:\n");
1606 ipr_log_ext_vpd(&error->cfc_vpd);
1607
1608 ipr_err("-----Expected Configuration-----\n");
1609 ipr_err("Cache Directory Card Information:\n");
1610 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1611 ipr_err("Adapter Card Information:\n");
1612 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1613
1614 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1615 be32_to_cpu(error->ioa_data[0]),
1616 be32_to_cpu(error->ioa_data[1]),
1617 be32_to_cpu(error->ioa_data[2]));
1618}
1619
1da177e4
LT		 1620/**
1621 * ipr_log_cache_error - Log a cache error.
1622 * @ioa_cfg: ioa config struct
1623 * @hostrcb: hostrcb struct
1624 *
1625 * Return value:
1626 * none
1627 **/
1628static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1629 struct ipr_hostrcb *hostrcb)
1630{
1631 struct ipr_hostrcb_type_02_error *error =
1632 &hostrcb->hcam.u.error.u.type_02_error;
1633
1634 ipr_err("-----Current Configuration-----\n");
1635 ipr_err("Cache Directory Card Information:\n");
cfc32139 1636 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1637 ipr_err("Adapter Card Information:\n");
cfc32139 1638 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1639
1640 ipr_err("-----Expected Configuration-----\n");
1641 ipr_err("Cache Directory Card Information:\n");
cfc32139 1642 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1643 ipr_err("Adapter Card Information:\n");
cfc32139 1644 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1645
1646 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1647 be32_to_cpu(error->ioa_data[0]),
1648 be32_to_cpu(error->ioa_data[1]),
1649 be32_to_cpu(error->ioa_data[2]));
1650}
1651
ee0f05b8 1652/**
1653 * ipr_log_enhanced_config_error - Log a configuration error.
1654 * @ioa_cfg: ioa config struct
1655 * @hostrcb: hostrcb struct
1656 *
1657 * Return value:
1658 * none
1659 **/
1660static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1661 struct ipr_hostrcb *hostrcb)
1662{
1663 int errors_logged, i;
1664 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1665 struct ipr_hostrcb_type_13_error *error;
1666
1667 error = &hostrcb->hcam.u.error.u.type_13_error;
1668 errors_logged = be32_to_cpu(error->errors_logged);
1669
1670 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1671 be32_to_cpu(error->errors_detected), errors_logged);
1672
1673 dev_entry = error->dev;
1674
1675 for (i = 0; i < errors_logged; i++, dev_entry++) {
1676 ipr_err_separator;
1677
1678 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1679 ipr_log_ext_vpd(&dev_entry->vpd);
1680
1681 ipr_err("-----New Device Information-----\n");
1682 ipr_log_ext_vpd(&dev_entry->new_vpd);
1683
1684 ipr_err("Cache Directory Card Information:\n");
1685 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1686
1687 ipr_err("Adapter Card Information:\n");
1688 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1689 }
1690}
1691
4565e370
WB		 1692/**
1693 * ipr_log_sis64_config_error - Log a device error.
1694 * @ioa_cfg: ioa config struct
1695 * @hostrcb: hostrcb struct
1696 *
1697 * Return value:
1698 * none
1699 **/
1700static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1701 struct ipr_hostrcb *hostrcb)
1702{
1703 int errors_logged, i;
1704 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1705 struct ipr_hostrcb_type_23_error *error;
1706 char buffer[IPR_MAX_RES_PATH_LENGTH];
1707
1708 error = &hostrcb->hcam.u.error64.u.type_23_error;
1709 errors_logged = be32_to_cpu(error->errors_logged);
1710
1711 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1712 be32_to_cpu(error->errors_detected), errors_logged);
1713
1714 dev_entry = error->dev;
1715
1716 for (i = 0; i < errors_logged; i++, dev_entry++) {
1717 ipr_err_separator;
1718
1719 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1720 __ipr_format_res_path(dev_entry->res_path,
1721 buffer, sizeof(buffer)));
4565e370
WB		 1722 ipr_log_ext_vpd(&dev_entry->vpd);
1723
1724 ipr_err("-----New Device Information-----\n");
1725 ipr_log_ext_vpd(&dev_entry->new_vpd);
1726
1727 ipr_err("Cache Directory Card Information:\n");
1728 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1729
1730 ipr_err("Adapter Card Information:\n");
1731 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1732 }
1733}
1734
1da177e4
LT		 1735/**
1736 * ipr_log_config_error - Log a configuration error.
1737 * @ioa_cfg: ioa config struct
1738 * @hostrcb: hostrcb struct
1739 *
1740 * Return value:
1741 * none
1742 **/
1743static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1744 struct ipr_hostrcb *hostrcb)
1745{
1746 int errors_logged, i;
1747 struct ipr_hostrcb_device_data_entry *dev_entry;
1748 struct ipr_hostrcb_type_03_error *error;
1749
1750 error = &hostrcb->hcam.u.error.u.type_03_error;
1751 errors_logged = be32_to_cpu(error->errors_logged);
1752
1753 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1754 be32_to_cpu(error->errors_detected), errors_logged);
1755
cfc32139 1756 dev_entry = error->dev;
1da177e4
LT		 1757
1758 for (i = 0; i < errors_logged; i++, dev_entry++) {
1759 ipr_err_separator;
1760
fa15b1f6 1761 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1762 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1763
1764 ipr_err("-----New Device Information-----\n");
cfc32139 1765 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1766
1767 ipr_err("Cache Directory Card Information:\n");
cfc32139 1768 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1769
1770 ipr_err("Adapter Card Information:\n");
cfc32139 1771 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1772
1773 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1774 be32_to_cpu(dev_entry->ioa_data[0]),
1775 be32_to_cpu(dev_entry->ioa_data[1]),
1776 be32_to_cpu(dev_entry->ioa_data[2]),
1777 be32_to_cpu(dev_entry->ioa_data[3]),
1778 be32_to_cpu(dev_entry->ioa_data[4]));
1779 }
1780}
1781
ee0f05b8 1782/**
1783 * ipr_log_enhanced_array_error - Log an array configuration error.
1784 * @ioa_cfg: ioa config struct
1785 * @hostrcb: hostrcb struct
1786 *
1787 * Return value:
1788 * none
1789 **/
1790static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1791 struct ipr_hostrcb *hostrcb)
1792{
1793 int i, num_entries;
1794 struct ipr_hostrcb_type_14_error *error;
1795 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1796 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1797
1798 error = &hostrcb->hcam.u.error.u.type_14_error;
1799
1800 ipr_err_separator;
1801
1802 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1803 error->protection_level,
1804 ioa_cfg->host->host_no,
1805 error->last_func_vset_res_addr.bus,
1806 error->last_func_vset_res_addr.target,
1807 error->last_func_vset_res_addr.lun);
1808
1809 ipr_err_separator;
1810
1811 array_entry = error->array_member;
1812 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1813 ARRAY_SIZE(error->array_member));
ee0f05b8 1814
1815 for (i = 0; i < num_entries; i++, array_entry++) {
1816 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1817 continue;
1818
1819 if (be32_to_cpu(error->exposed_mode_adn) == i)
1820 ipr_err("Exposed Array Member %d:\n", i);
1821 else
1822 ipr_err("Array Member %d:\n", i);
1823
1824 ipr_log_ext_vpd(&array_entry->vpd);
1825 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1826 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1827 "Expected Location");
1828
1829 ipr_err_separator;
1830 }
1831}
1832
1da177e4
LT		 1833/**
1834 * ipr_log_array_error - Log an array configuration error.
1835 * @ioa_cfg: ioa config struct
1836 * @hostrcb: hostrcb struct
1837 *
1838 * Return value:
1839 * none
1840 **/
1841static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1842 struct ipr_hostrcb *hostrcb)
1843{
1844 int i;
1845 struct ipr_hostrcb_type_04_error *error;
1846 struct ipr_hostrcb_array_data_entry *array_entry;
1847 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1848
1849 error = &hostrcb->hcam.u.error.u.type_04_error;
1850
1851 ipr_err_separator;
1852
1853 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1854 error->protection_level,
1855 ioa_cfg->host->host_no,
1856 error->last_func_vset_res_addr.bus,
1857 error->last_func_vset_res_addr.target,
1858 error->last_func_vset_res_addr.lun);
1859
1860 ipr_err_separator;
1861
1862 array_entry = error->array_member;
1863
1864 for (i = 0; i < 18; i++) {
cfc32139 1865 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1866 continue;
1867
fa15b1f6 1868 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1869 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1870 else
1da177e4 1871 ipr_err("Array Member %d:\n", i);
1da177e4 1872
cfc32139 1873 ipr_log_vpd(&array_entry->vpd);
1da177e4 1874
fa15b1f6 1875 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1876 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1877 "Expected Location");
1da177e4
LT		 1878
1879 ipr_err_separator;
1880
1881 if (i == 9)
1882 array_entry = error->array_member2;
1883 else
1884 array_entry++;
1885 }
1886}
1887
1888/**
b0df54bb 1889 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1890 * @ioa_cfg: ioa config struct
b0df54bb 1891 * @data: IOA error data
1892 * @len: data length
1da177e4
LT		 1893 *
1894 * Return value:
1895 * none
1896 **/
ac719aba 1897static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1898{
1899 int i;
1da177e4 1900
b0df54bb 1901 if (len == 0)
1da177e4
LT		 1902 return;
1903
ac719aba
BK		 1904 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1905 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1906
b0df54bb 1907 for (i = 0; i < len / 4; i += 4) {
1da177e4 1908 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb 1909 be32_to_cpu(data[i]),
1910 be32_to_cpu(data[i+1]),
1911 be32_to_cpu(data[i+2]),
1912 be32_to_cpu(data[i+3]));
1da177e4
LT		 1913 }
1914}
1915
ee0f05b8 1916/**
1917 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1918 * @ioa_cfg: ioa config struct
1919 * @hostrcb: hostrcb struct
1920 *
1921 * Return value:
1922 * none
1923 **/
1924static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1925 struct ipr_hostrcb *hostrcb)
1926{
1927 struct ipr_hostrcb_type_17_error *error;
1928
4565e370
WB		 1929 if (ioa_cfg->sis64)
1930 error = &hostrcb->hcam.u.error64.u.type_17_error;
1931 else
1932 error = &hostrcb->hcam.u.error.u.type_17_error;
1933
ee0f05b8 1934 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1935 strim(error->failure_reason);
ee0f05b8 1936
8cf093e2
BK		 1937 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1938 be32_to_cpu(hostrcb->hcam.u.error.prc));
1939 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1940 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8 1941 be32_to_cpu(hostrcb->hcam.length) -
1942 (offsetof(struct ipr_hostrcb_error, u) +
1943 offsetof(struct ipr_hostrcb_type_17_error, data)));
1944}
1945
b0df54bb 1946/**
1947 * ipr_log_dual_ioa_error - Log a dual adapter error.
1948 * @ioa_cfg: ioa config struct
1949 * @hostrcb: hostrcb struct
1950 *
1951 * Return value:
1952 * none
1953 **/
1954static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1955 struct ipr_hostrcb *hostrcb)
1956{
1957 struct ipr_hostrcb_type_07_error *error;
1958
1959 error = &hostrcb->hcam.u.error.u.type_07_error;
1960 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1961 strim(error->failure_reason);
b0df54bb 1962
8cf093e2
BK		 1963 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1964 be32_to_cpu(hostrcb->hcam.u.error.prc));
1965 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1966 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb 1967 be32_to_cpu(hostrcb->hcam.length) -
1968 (offsetof(struct ipr_hostrcb_error, u) +
1969 offsetof(struct ipr_hostrcb_type_07_error, data)));
1970}
1971
49dc6a18
BK		 1972static const struct {
1973 u8 active;
1974 char *desc;
1975} path_active_desc[] = {
1976 { IPR_PATH_NO_INFO, "Path" },
1977 { IPR_PATH_ACTIVE, "Active path" },
1978 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1979};
1980
1981static const struct {
1982 u8 state;
1983 char *desc;
1984} path_state_desc[] = {
1985 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1986 { IPR_PATH_HEALTHY, "is healthy" },
1987 { IPR_PATH_DEGRADED, "is degraded" },
1988 { IPR_PATH_FAILED, "is failed" }
1989};
1990
1991/**
1992 * ipr_log_fabric_path - Log a fabric path error
1993 * @hostrcb: hostrcb struct
1994 * @fabric: fabric descriptor
1995 *
1996 * Return value:
1997 * none
1998 **/
1999static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2000 struct ipr_hostrcb_fabric_desc *fabric)
2001{
2002 int i, j;
2003 u8 path_state = fabric->path_state;
2004 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2005 u8 state = path_state & IPR_PATH_STATE_MASK;
2006
2007 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2008 if (path_active_desc[i].active != active)
2009 continue;
2010
2011 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2012 if (path_state_desc[j].state != state)
2013 continue;
2014
2015 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2017 path_active_desc[i].desc, path_state_desc[j].desc,
2018 fabric->ioa_port);
2019 } else if (fabric->cascaded_expander == 0xff) {
2020 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2021 path_active_desc[i].desc, path_state_desc[j].desc,
2022 fabric->ioa_port, fabric->phy);
2023 } else if (fabric->phy == 0xff) {
2024 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2025 path_active_desc[i].desc, path_state_desc[j].desc,
2026 fabric->ioa_port, fabric->cascaded_expander);
2027 } else {
2028 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2029 path_active_desc[i].desc, path_state_desc[j].desc,
2030 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2031 }
2032 return;
2033 }
2034 }
2035
2036 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2037 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2038}
2039
4565e370
WB		 2040/**
2041 * ipr_log64_fabric_path - Log a fabric path error
2042 * @hostrcb: hostrcb struct
2043 * @fabric: fabric descriptor
2044 *
2045 * Return value:
2046 * none
2047 **/
2048static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2049 struct ipr_hostrcb64_fabric_desc *fabric)
2050{
2051 int i, j;
2052 u8 path_state = fabric->path_state;
2053 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2054 u8 state = path_state & IPR_PATH_STATE_MASK;
2055 char buffer[IPR_MAX_RES_PATH_LENGTH];
2056
2057 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2058 if (path_active_desc[i].active != active)
2059 continue;
2060
2061 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2062 if (path_state_desc[j].state != state)
2063 continue;
2064
2065 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2066 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2067 ipr_format_res_path(hostrcb->ioa_cfg,
2068 fabric->res_path,
2069 buffer, sizeof(buffer)));
4565e370
WB		 2070 return;
2071 }
2072 }
2073
2074 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2075 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2076 buffer, sizeof(buffer)));
4565e370
WB		 2077}
2078
49dc6a18
BK		 2079static const struct {
2080 u8 type;
2081 char *desc;
2082} path_type_desc[] = {
2083 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2084 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2085 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2086 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2087};
2088
2089static const struct {
2090 u8 status;
2091 char *desc;
2092} path_status_desc[] = {
2093 { IPR_PATH_CFG_NO_PROB, "Functional" },
2094 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2095 { IPR_PATH_CFG_FAILED, "Failed" },
2096 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2097 { IPR_PATH_NOT_DETECTED, "Missing" },
2098 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2099};
2100
2101static const char *link_rate[] = {
2102 "unknown",
2103 "disabled",
2104 "phy reset problem",
2105 "spinup hold",
2106 "port selector",
2107 "unknown",
2108 "unknown",
2109 "unknown",
2110 "1.5Gbps",
2111 "3.0Gbps",
2112 "unknown",
2113 "unknown",
2114 "unknown",
2115 "unknown",
2116 "unknown",
2117 "unknown"
2118};
2119
2120/**
2121 * ipr_log_path_elem - Log a fabric path element.
2122 * @hostrcb: hostrcb struct
2123 * @cfg: fabric path element struct
2124 *
2125 * Return value:
2126 * none
2127 **/
2128static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2129 struct ipr_hostrcb_config_element *cfg)
2130{
2131 int i, j;
2132 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2133 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2134
2135 if (type == IPR_PATH_CFG_NOT_EXIST)
2136 return;
2137
2138 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2139 if (path_type_desc[i].type != type)
2140 continue;
2141
2142 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2143 if (path_status_desc[j].status != status)
2144 continue;
2145
2146 if (type == IPR_PATH_CFG_IOA_PORT) {
2147 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2148 path_status_desc[j].desc, path_type_desc[i].desc,
2149 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2150 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2151 } else {
2152 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2153 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2154 path_status_desc[j].desc, path_type_desc[i].desc,
2155 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2156 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2157 } else if (cfg->cascaded_expander == 0xff) {
2158 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2159 "WWN=%08X%08X\n", path_status_desc[j].desc,
2160 path_type_desc[i].desc, cfg->phy,
2161 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2162 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2163 } else if (cfg->phy == 0xff) {
2164 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2165 "WWN=%08X%08X\n", path_status_desc[j].desc,
2166 path_type_desc[i].desc, cfg->cascaded_expander,
2167 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2168 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2169 } else {
2170 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2171 "WWN=%08X%08X\n", path_status_desc[j].desc,
2172 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2173 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2174 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2175 }
2176 }
2177 return;
2178 }
2179 }
2180
2181 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2182 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2183 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2184 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2185}
2186
4565e370
WB		 2187/**
2188 * ipr_log64_path_elem - Log a fabric path element.
2189 * @hostrcb: hostrcb struct
2190 * @cfg: fabric path element struct
2191 *
2192 * Return value:
2193 * none
2194 **/
2195static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2196 struct ipr_hostrcb64_config_element *cfg)
2197{
2198 int i, j;
2199 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2200 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2201 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2202 char buffer[IPR_MAX_RES_PATH_LENGTH];
2203
2204 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2205 return;
2206
2207 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2208 if (path_type_desc[i].type != type)
2209 continue;
2210
2211 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2212 if (path_status_desc[j].status != status)
2213 continue;
2214
2215 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2216 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2217 ipr_format_res_path(hostrcb->ioa_cfg,
2218 cfg->res_path, buffer, sizeof(buffer)),
2219 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2220 be32_to_cpu(cfg->wwid[0]),
2221 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2222 return;
2223 }
2224 }
2225 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2226 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2227 ipr_format_res_path(hostrcb->ioa_cfg,
2228 cfg->res_path, buffer, sizeof(buffer)),
2229 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2230 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2231}
2232
49dc6a18
BK		 2233/**
2234 * ipr_log_fabric_error - Log a fabric error.
2235 * @ioa_cfg: ioa config struct
2236 * @hostrcb: hostrcb struct
2237 *
2238 * Return value:
2239 * none
2240 **/
2241static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2242 struct ipr_hostrcb *hostrcb)
2243{
2244 struct ipr_hostrcb_type_20_error *error;
2245 struct ipr_hostrcb_fabric_desc *fabric;
2246 struct ipr_hostrcb_config_element *cfg;
2247 int i, add_len;
2248
2249 error = &hostrcb->hcam.u.error.u.type_20_error;
2250 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2251 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2252
2253 add_len = be32_to_cpu(hostrcb->hcam.length) -
2254 (offsetof(struct ipr_hostrcb_error, u) +
2255 offsetof(struct ipr_hostrcb_type_20_error, desc));
2256
2257 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2258 ipr_log_fabric_path(hostrcb, fabric);
2259 for_each_fabric_cfg(fabric, cfg)
2260 ipr_log_path_elem(hostrcb, cfg);
2261
2262 add_len -= be16_to_cpu(fabric->length);
2263 fabric = (struct ipr_hostrcb_fabric_desc *)
2264 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2265 }
2266
ac719aba 2267 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2268}
2269
4565e370
WB		 2270/**
2271 * ipr_log_sis64_array_error - Log a sis64 array error.
2272 * @ioa_cfg: ioa config struct
2273 * @hostrcb: hostrcb struct
2274 *
2275 * Return value:
2276 * none
2277 **/
2278static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2279 struct ipr_hostrcb *hostrcb)
2280{
2281 int i, num_entries;
2282 struct ipr_hostrcb_type_24_error *error;
2283 struct ipr_hostrcb64_array_data_entry *array_entry;
2284 char buffer[IPR_MAX_RES_PATH_LENGTH];
2285 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2286
2287 error = &hostrcb->hcam.u.error64.u.type_24_error;
2288
2289 ipr_err_separator;
2290
2291 ipr_err("RAID %s Array Configuration: %s\n",
2292 error->protection_level,
b3b3b407
BK		 2293 ipr_format_res_path(ioa_cfg, error->last_res_path,
2294 buffer, sizeof(buffer)));
4565e370
WB		 2295
2296 ipr_err_separator;
2297
2298 array_entry = error->array_member;
7262026f
WB		 2299 num_entries = min_t(u32, error->num_entries,
2300 ARRAY_SIZE(error->array_member));
4565e370
WB		 2301
2302 for (i = 0; i < num_entries; i++, array_entry++) {
2303
2304 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2305 continue;
2306
2307 if (error->exposed_mode_adn == i)
2308 ipr_err("Exposed Array Member %d:\n", i);
2309 else
2310 ipr_err("Array Member %d:\n", i);
2311
2312 ipr_err("Array Member %d:\n", i);
2313 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2314 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2315 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2316 buffer, sizeof(buffer)));
7262026f 2317 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2318 ipr_format_res_path(ioa_cfg,
2319 array_entry->expected_res_path,
2320 buffer, sizeof(buffer)));
4565e370
WB		 2321
2322 ipr_err_separator;
2323 }
2324}
2325
2326/**
2327 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2328 * @ioa_cfg: ioa config struct
2329 * @hostrcb: hostrcb struct
2330 *
2331 * Return value:
2332 * none
2333 **/
2334static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2335 struct ipr_hostrcb *hostrcb)
2336{
2337 struct ipr_hostrcb_type_30_error *error;
2338 struct ipr_hostrcb64_fabric_desc *fabric;
2339 struct ipr_hostrcb64_config_element *cfg;
2340 int i, add_len;
2341
2342 error = &hostrcb->hcam.u.error64.u.type_30_error;
2343
2344 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2345 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2346
2347 add_len = be32_to_cpu(hostrcb->hcam.length) -
2348 (offsetof(struct ipr_hostrcb64_error, u) +
2349 offsetof(struct ipr_hostrcb_type_30_error, desc));
2350
2351 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2352 ipr_log64_fabric_path(hostrcb, fabric);
2353 for_each_fabric_cfg(fabric, cfg)
2354 ipr_log64_path_elem(hostrcb, cfg);
2355
2356 add_len -= be16_to_cpu(fabric->length);
2357 fabric = (struct ipr_hostrcb64_fabric_desc *)
2358 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2359 }
2360
2361 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2362}
2363
b0df54bb 2364/**
2365 * ipr_log_generic_error - Log an adapter error.
2366 * @ioa_cfg: ioa config struct
2367 * @hostrcb: hostrcb struct
2368 *
2369 * Return value:
2370 * none
2371 **/
2372static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2373 struct ipr_hostrcb *hostrcb)
2374{
ac719aba 2375 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb 2376 be32_to_cpu(hostrcb->hcam.length));
2377}
2378
169b9ec8
WX		 2379/**
2380 * ipr_log_sis64_device_error - Log a cache error.
2381 * @ioa_cfg: ioa config struct
2382 * @hostrcb: hostrcb struct
2383 *
2384 * Return value:
2385 * none
2386 **/
2387static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2388 struct ipr_hostrcb *hostrcb)
2389{
2390 struct ipr_hostrcb_type_21_error *error;
2391 char buffer[IPR_MAX_RES_PATH_LENGTH];
2392
2393 error = &hostrcb->hcam.u.error64.u.type_21_error;
2394
2395 ipr_err("-----Failing Device Information-----\n");
2396 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2397 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2398 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2399 ipr_err("Device Resource Path: %s\n",
2400 __ipr_format_res_path(error->res_path,
2401 buffer, sizeof(buffer)));
2402 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2403 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2404 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2405 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2406 ipr_err("SCSI Sense Data:\n");
2407 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2408 ipr_err("SCSI Command Descriptor Block: \n");
2409 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2410
2411 ipr_err("Additional IOA Data:\n");
2412 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2413}
2414
1da177e4
LT		 2415/**
2416 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2417 * @ioasc: IOASC
2418 *
2419 * This function will return the index of into the ipr_error_table
2420 * for the specified IOASC. If the IOASC is not in the table,
2421 * 0 will be returned, which points to the entry used for unknown errors.
2422 *
2423 * Return value:
2424 * index into the ipr_error_table
2425 **/
2426static u32 ipr_get_error(u32 ioasc)
2427{
2428 int i;
2429
2430 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2431 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2432 return i;
2433
2434 return 0;
2435}
2436
2437/**
2438 * ipr_handle_log_data - Log an adapter error.
2439 * @ioa_cfg: ioa config struct
2440 * @hostrcb: hostrcb struct
2441 *
2442 * This function logs an adapter error to the system.
2443 *
2444 * Return value:
2445 * none
2446 **/
2447static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2448 struct ipr_hostrcb *hostrcb)
2449{
2450 u32 ioasc;
2451 int error_index;
3185ea63 2452 struct ipr_hostrcb_type_21_error *error;
1da177e4
LT		 2453
2454 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2455 return;
2456
2457 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2458 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2459
4565e370
WB		 2460 if (ioa_cfg->sis64)
2461 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2462 else
2463 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2464
4565e370
WB		 2465 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2466 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2467 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2468 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2469 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2470 }
2471
2472 error_index = ipr_get_error(ioasc);
2473
2474 if (!ipr_error_table[error_index].log_hcam)
2475 return;
2476
3185ea63 2477 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2478 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2479 error = &hostrcb->hcam.u.error64.u.type_21_error;
2480
2481 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2482 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2483 return;
2484 }
2485
49dc6a18 2486 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2487
2488 /* Set indication we have logged an error */
2489 ioa_cfg->errors_logged++;
2490
933916f3 2491 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2492 return;
cf852037 2493 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2494 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2495
2496 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2497 case IPR_HOST_RCB_OVERLAY_ID_2:
2498 ipr_log_cache_error(ioa_cfg, hostrcb);
2499 break;
2500 case IPR_HOST_RCB_OVERLAY_ID_3:
2501 ipr_log_config_error(ioa_cfg, hostrcb);
2502 break;
2503 case IPR_HOST_RCB_OVERLAY_ID_4:
2504 case IPR_HOST_RCB_OVERLAY_ID_6:
2505 ipr_log_array_error(ioa_cfg, hostrcb);
2506 break;
b0df54bb 2507 case IPR_HOST_RCB_OVERLAY_ID_7:
2508 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2509 break;
ee0f05b8 2510 case IPR_HOST_RCB_OVERLAY_ID_12:
2511 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2512 break;
2513 case IPR_HOST_RCB_OVERLAY_ID_13:
2514 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2515 break;
2516 case IPR_HOST_RCB_OVERLAY_ID_14:
2517 case IPR_HOST_RCB_OVERLAY_ID_16:
2518 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2519 break;
2520 case IPR_HOST_RCB_OVERLAY_ID_17:
2521 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2522 break;
49dc6a18
BK		 2523 case IPR_HOST_RCB_OVERLAY_ID_20:
2524 ipr_log_fabric_error(ioa_cfg, hostrcb);
2525 break;
169b9ec8
WX		 2526 case IPR_HOST_RCB_OVERLAY_ID_21:
2527 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2528 break;
4565e370
WB		 2529 case IPR_HOST_RCB_OVERLAY_ID_23:
2530 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2531 break;
2532 case IPR_HOST_RCB_OVERLAY_ID_24:
2533 case IPR_HOST_RCB_OVERLAY_ID_26:
2534 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2535 break;
2536 case IPR_HOST_RCB_OVERLAY_ID_30:
2537 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2538 break;
cf852037 2539 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2540 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2541 default:
a9cfca96 2542 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2543 break;
2544 }
2545}
2546
2547/**
2548 * ipr_process_error - Op done function for an adapter error log.
2549 * @ipr_cmd: ipr command struct
2550 *
2551 * This function is the op done function for an error log host
2552 * controlled async from the adapter. It will log the error and
2553 * send the HCAM back to the adapter.
2554 *
2555 * Return value:
2556 * none
2557 **/
2558static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2559{
2560 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2561 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2562 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2563 u32 fd_ioasc;
2564
2565 if (ioa_cfg->sis64)
2566 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2567 else
2568 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2569
2570 list_del(&hostrcb->queue);
05a6538a 2571 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2572
2573 if (!ioasc) {
2574 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2575 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2576 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4fdd7c7a
BK		 2577 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2578 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
1da177e4
LT		 2579 dev_err(&ioa_cfg->pdev->dev,
2580 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2581 }
2582
2583 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2584}
2585
2586/**
2587 * ipr_timeout - An internally generated op has timed out.
2588 * @ipr_cmd: ipr command struct
2589 *
2590 * This function blocks host requests and initiates an
2591 * adapter reset.
2592 *
2593 * Return value:
2594 * none
2595 **/
2596static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2597{
2598 unsigned long lock_flags = 0;
2599 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2600
2601 ENTER;
2602 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2603
2604 ioa_cfg->errors_logged++;
2605 dev_err(&ioa_cfg->pdev->dev,
2606 "Adapter being reset due to command timeout.\n");
2607
2608 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2609 ioa_cfg->sdt_state = GET_DUMP;
2610
2611 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2612 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2613
2614 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2615 LEAVE;
2616}
2617
2618/**
2619 * ipr_oper_timeout - Adapter timed out transitioning to operational
2620 * @ipr_cmd: ipr command struct
2621 *
2622 * This function blocks host requests and initiates an
2623 * adapter reset.
2624 *
2625 * Return value:
2626 * none
2627 **/
2628static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2629{
2630 unsigned long lock_flags = 0;
2631 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2632
2633 ENTER;
2634 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2635
2636 ioa_cfg->errors_logged++;
2637 dev_err(&ioa_cfg->pdev->dev,
2638 "Adapter timed out transitioning to operational.\n");
2639
2640 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2641 ioa_cfg->sdt_state = GET_DUMP;
2642
2643 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2644 if (ipr_fastfail)
2645 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2646 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2647 }
2648
2649 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2650 LEAVE;
2651}
2652
1da177e4
LT		 2653/**
2654 * ipr_find_ses_entry - Find matching SES in SES table
2655 * @res: resource entry struct of SES
2656 *
2657 * Return value:
2658 * pointer to SES table entry / NULL on failure
2659 **/
2660static const struct ipr_ses_table_entry *
2661ipr_find_ses_entry(struct ipr_resource_entry *res)
2662{
2663 int i, j, matches;
3e7ebdfa 2664 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2665 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2666
2667 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2668 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2669 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2670 vpids = &res->std_inq_data.vpids;
2671 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2672 matches++;
2673 else
2674 break;
2675 } else
2676 matches++;
2677 }
2678
2679 if (matches == IPR_PROD_ID_LEN)
2680 return ste;
2681 }
2682
2683 return NULL;
2684}
2685
2686/**
2687 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2688 * @ioa_cfg: ioa config struct
2689 * @bus: SCSI bus
2690 * @bus_width: bus width
2691 *
2692 * Return value:
2693 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2694 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2695 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2696 * max 160MHz = max 320MB/sec).
2697 **/
2698static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2699{
2700 struct ipr_resource_entry *res;
2701 const struct ipr_ses_table_entry *ste;
2702 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2703
2704 /* Loop through each config table entry in the config table buffer */
2705 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2706 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2707 continue;
2708
3e7ebdfa 2709 if (bus != res->bus)
1da177e4
LT		 2710 continue;
2711
2712 if (!(ste = ipr_find_ses_entry(res)))
2713 continue;
2714
2715 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2716 }
2717
2718 return max_xfer_rate;
2719}
2720
2721/**
2722 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2723 * @ioa_cfg: ioa config struct
2724 * @max_delay: max delay in micro-seconds to wait
2725 *
2726 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2727 *
2728 * Return value:
2729 * 0 on success / other on failure
2730 **/
2731static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2732{
2733 volatile u32 pcii_reg;
2734 int delay = 1;
2735
2736 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2737 while (delay < max_delay) {
2738 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2739
2740 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2741 return 0;
2742
2743 /* udelay cannot be used if delay is more than a few milliseconds */
2744 if ((delay / 1000) > MAX_UDELAY_MS)
2745 mdelay(delay / 1000);
2746 else
2747 udelay(delay);
2748
2749 delay += delay;
2750 }
2751 return -EIO;
2752}
2753
dcbad00e
WB		 2754/**
2755 * ipr_get_sis64_dump_data_section - Dump IOA memory
2756 * @ioa_cfg: ioa config struct
2757 * @start_addr: adapter address to dump
2758 * @dest: destination kernel buffer
2759 * @length_in_words: length to dump in 4 byte words
2760 *
2761 * Return value:
2762 * 0 on success
2763 **/
2764static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2765 u32 start_addr,
2766 __be32 *dest, u32 length_in_words)
2767{
2768 int i;
2769
2770 for (i = 0; i < length_in_words; i++) {
2771 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2772 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2773 dest++;
2774 }
2775
2776 return 0;
2777}
2778
1da177e4
LT		 2779/**
2780 * ipr_get_ldump_data_section - Dump IOA memory
2781 * @ioa_cfg: ioa config struct
2782 * @start_addr: adapter address to dump
2783 * @dest: destination kernel buffer
2784 * @length_in_words: length to dump in 4 byte words
2785 *
2786 * Return value:
2787 * 0 on success / -EIO on failure
2788 **/
2789static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2790 u32 start_addr,
2791 __be32 *dest, u32 length_in_words)
2792{
2793 volatile u32 temp_pcii_reg;
2794 int i, delay = 0;
2795
dcbad00e
WB		 2796 if (ioa_cfg->sis64)
2797 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2798 dest, length_in_words);
2799
1da177e4
LT		 2800 /* Write IOA interrupt reg starting LDUMP state */
2801 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2802 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2803
2804 /* Wait for IO debug acknowledge */
2805 if (ipr_wait_iodbg_ack(ioa_cfg,
2806 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2807 dev_err(&ioa_cfg->pdev->dev,
2808 "IOA dump long data transfer timeout\n");
2809 return -EIO;
2810 }
2811
2812 /* Signal LDUMP interlocked - clear IO debug ack */
2813 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2814 ioa_cfg->regs.clr_interrupt_reg);
2815
2816 /* Write Mailbox with starting address */
2817 writel(start_addr, ioa_cfg->ioa_mailbox);
2818
2819 /* Signal address valid - clear IOA Reset alert */
2820 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2821 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2822
2823 for (i = 0; i < length_in_words; i++) {
2824 /* Wait for IO debug acknowledge */
2825 if (ipr_wait_iodbg_ack(ioa_cfg,
2826 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2827 dev_err(&ioa_cfg->pdev->dev,
2828 "IOA dump short data transfer timeout\n");
2829 return -EIO;
2830 }
2831
2832 /* Read data from mailbox and increment destination pointer */
2833 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2834 dest++;
2835
2836 /* For all but the last word of data, signal data received */
2837 if (i < (length_in_words - 1)) {
2838 /* Signal dump data received - Clear IO debug Ack */
2839 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2840 ioa_cfg->regs.clr_interrupt_reg);
2841 }
2842 }
2843
2844 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2845 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2846 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2847
2848 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2849 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2850
2851 /* Signal dump data received - Clear IO debug Ack */
2852 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2853 ioa_cfg->regs.clr_interrupt_reg);
2854
2855 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2856 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2857 temp_pcii_reg =
214777ba 2858 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2859
2860 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2861 return 0;
2862
2863 udelay(10);
2864 delay += 10;
2865 }
2866
2867 return 0;
2868}
2869
2870#ifdef CONFIG_SCSI_IPR_DUMP
2871/**
2872 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2873 * @ioa_cfg: ioa config struct
2874 * @pci_address: adapter address
2875 * @length: length of data to copy
2876 *
2877 * Copy data from PCI adapter to kernel buffer.
2878 * Note: length MUST be a 4 byte multiple
2879 * Return value:
2880 * 0 on success / other on failure
2881 **/
2882static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2883 unsigned long pci_address, u32 length)
2884{
2885 int bytes_copied = 0;
4d4dd706 2886 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2887 __be32 *page;
2888 unsigned long lock_flags = 0;
2889 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2890
4d4dd706
KSS		 2891 if (ioa_cfg->sis64)
2892 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2893 else
2894 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2895
1da177e4 2896 while (bytes_copied < length &&
4d4dd706 2897 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2898 if (ioa_dump->page_offset >= PAGE_SIZE ||
2899 ioa_dump->page_offset == 0) {
2900 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2901
2902 if (!page) {
2903 ipr_trace;
2904 return bytes_copied;
2905 }
2906
2907 ioa_dump->page_offset = 0;
2908 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2909 ioa_dump->next_page_index++;
2910 } else
2911 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2912
2913 rem_len = length - bytes_copied;
2914 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2915 cur_len = min(rem_len, rem_page_len);
2916
2917 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2918 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2919 rc = -EIO;
2920 } else {
2921 rc = ipr_get_ldump_data_section(ioa_cfg,
2922 pci_address + bytes_copied,
2923 &page[ioa_dump->page_offset / 4],
2924 (cur_len / sizeof(u32)));
2925 }
2926 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2927
2928 if (!rc) {
2929 ioa_dump->page_offset += cur_len;
2930 bytes_copied += cur_len;
2931 } else {
2932 ipr_trace;
2933 break;
2934 }
2935 schedule();
2936 }
2937
2938 return bytes_copied;
2939}
2940
2941/**
2942 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2943 * @hdr: dump entry header struct
2944 *
2945 * Return value:
2946 * nothing
2947 **/
2948static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2949{
2950 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2951 hdr->num_elems = 1;
2952 hdr->offset = sizeof(*hdr);
2953 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2954}
2955
2956/**
2957 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2958 * @ioa_cfg: ioa config struct
2959 * @driver_dump: driver dump struct
2960 *
2961 * Return value:
2962 * nothing
2963 **/
2964static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2965 struct ipr_driver_dump *driver_dump)
2966{
2967 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2968
2969 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2970 driver_dump->ioa_type_entry.hdr.len =
2971 sizeof(struct ipr_dump_ioa_type_entry) -
2972 sizeof(struct ipr_dump_entry_header);
2973 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2974 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2975 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2976 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2977 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2978 ucode_vpd->minor_release[1];
2979 driver_dump->hdr.num_entries++;
2980}
2981
2982/**
2983 * ipr_dump_version_data - Fill in the driver version in the dump.
2984 * @ioa_cfg: ioa config struct
2985 * @driver_dump: driver dump struct
2986 *
2987 * Return value:
2988 * nothing
2989 **/
2990static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2991 struct ipr_driver_dump *driver_dump)
2992{
2993 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2994 driver_dump->version_entry.hdr.len =
2995 sizeof(struct ipr_dump_version_entry) -
2996 sizeof(struct ipr_dump_entry_header);
2997 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2998 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2999 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3000 driver_dump->hdr.num_entries++;
3001}
3002
3003/**
3004 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3005 * @ioa_cfg: ioa config struct
3006 * @driver_dump: driver dump struct
3007 *
3008 * Return value:
3009 * nothing
3010 **/
3011static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3012 struct ipr_driver_dump *driver_dump)
3013{
3014 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3015 driver_dump->trace_entry.hdr.len =
3016 sizeof(struct ipr_dump_trace_entry) -
3017 sizeof(struct ipr_dump_entry_header);
3018 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3019 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3020 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3021 driver_dump->hdr.num_entries++;
3022}
3023
3024/**
3025 * ipr_dump_location_data - Fill in the IOA location in the dump.
3026 * @ioa_cfg: ioa config struct
3027 * @driver_dump: driver dump struct
3028 *
3029 * Return value:
3030 * nothing
3031 **/
3032static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3033 struct ipr_driver_dump *driver_dump)
3034{
3035 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3036 driver_dump->location_entry.hdr.len =
3037 sizeof(struct ipr_dump_location_entry) -
3038 sizeof(struct ipr_dump_entry_header);
3039 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3040 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3041 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3042 driver_dump->hdr.num_entries++;
3043}
3044
3045/**
3046 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3047 * @ioa_cfg: ioa config struct
3048 * @dump: dump struct
3049 *
3050 * Return value:
3051 * nothing
3052 **/
3053static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3054{
3055 unsigned long start_addr, sdt_word;
3056 unsigned long lock_flags = 0;
3057 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3058 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3059 u32 num_entries, max_num_entries, start_off, end_off;
3060 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3061 struct ipr_sdt *sdt;
dcbad00e 3062 int valid = 1;
1da177e4
LT		 3063 int i;
3064
3065 ENTER;
3066
3067 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3068
41e9a696 3069 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3070 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3071 return;
3072 }
3073
110def85
WB		 3074 if (ioa_cfg->sis64) {
3075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3076 ssleep(IPR_DUMP_DELAY_SECONDS);
3077 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3078 }
3079
1da177e4
LT		 3080 start_addr = readl(ioa_cfg->ioa_mailbox);
3081
dcbad00e 3082 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3083 dev_err(&ioa_cfg->pdev->dev,
3084 "Invalid dump table format: %lx\n", start_addr);
3085 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3086 return;
3087 }
3088
3089 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3090
3091 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3092
3093 /* Initialize the overall dump header */
3094 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3095 driver_dump->hdr.num_entries = 1;
3096 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3097 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3098 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3099 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3100
3101 ipr_dump_version_data(ioa_cfg, driver_dump);
3102 ipr_dump_location_data(ioa_cfg, driver_dump);
3103 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3104 ipr_dump_trace_data(ioa_cfg, driver_dump);
3105
3106 /* Update dump_header */
3107 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3108
3109 /* IOA Dump entry */
3110 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3111 ioa_dump->hdr.len = 0;
3112 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3113 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3114
3115 /* First entries in sdt are actually a list of dump addresses and
3116 lengths to gather the real dump data. sdt represents the pointer
3117 to the ioa generated dump table. Dump data will be extracted based
3118 on entries in this table */
3119 sdt = &ioa_dump->sdt;
3120
4d4dd706
KSS		 3121 if (ioa_cfg->sis64) {
3122 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3123 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3124 } else {
3125 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3126 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3127 }
3128
3129 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3130 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3131 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3132 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3133
3134 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3135 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3136 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3137 dev_err(&ioa_cfg->pdev->dev,
3138 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3139 rc, be32_to_cpu(sdt->hdr.state));
3140 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3141 ioa_cfg->sdt_state = DUMP_OBTAINED;
3142 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3143 return;
3144 }
3145
3146 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3147
4d4dd706
KSS		 3148 if (num_entries > max_num_entries)
3149 num_entries = max_num_entries;
3150
3151 /* Update dump length to the actual data to be copied */
3152 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3153 if (ioa_cfg->sis64)
3154 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3155 else
3156 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3157
3158 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3159
3160 for (i = 0; i < num_entries; i++) {
4d4dd706 3161 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3162 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3163 break;
3164 }
3165
3166 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3167 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3168 if (ioa_cfg->sis64)
3169 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3170 else {
3171 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3172 end_off = be32_to_cpu(sdt->entry[i].end_token);
3173
3174 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3175 bytes_to_copy = end_off - start_off;
3176 else
3177 valid = 0;
3178 }
3179 if (valid) {
4d4dd706 3180 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3181 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3182 continue;
3183 }
3184
3185 /* Copy data from adapter to driver buffers */
3186 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3187 bytes_to_copy);
3188
3189 ioa_dump->hdr.len += bytes_copied;
3190
3191 if (bytes_copied != bytes_to_copy) {
3192 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3193 break;
3194 }
3195 }
3196 }
3197 }
3198
3199 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3200
3201 /* Update dump_header */
3202 driver_dump->hdr.len += ioa_dump->hdr.len;
3203 wmb();
3204 ioa_cfg->sdt_state = DUMP_OBTAINED;
3205 LEAVE;
3206}
3207
3208#else
203fa3fe 3209#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3210#endif
3211
3212/**
3213 * ipr_release_dump - Free adapter dump memory
3214 * @kref: kref struct
3215 *
3216 * Return value:
3217 * nothing
3218 **/
3219static void ipr_release_dump(struct kref *kref)
3220{
203fa3fe 3221 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3222 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3223 unsigned long lock_flags = 0;
3224 int i;
3225
3226 ENTER;
3227 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3228 ioa_cfg->dump = NULL;
3229 ioa_cfg->sdt_state = INACTIVE;
3230 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3231
3232 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3233 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3234
4d4dd706 3235 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3236 kfree(dump);
3237 LEAVE;
3238}
3239
3240/**
3241 * ipr_worker_thread - Worker thread
c4028958 3242 * @work: ioa config struct
1da177e4
LT		 3243 *
3244 * Called at task level from a work thread. This function takes care
3245 * of adding and removing device from the mid-layer as configuration
3246 * changes are detected by the adapter.
3247 *
3248 * Return value:
3249 * nothing
3250 **/
c4028958 3251static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3252{
3253 unsigned long lock_flags;
3254 struct ipr_resource_entry *res;
3255 struct scsi_device *sdev;
3256 struct ipr_dump *dump;
c4028958
DH		 3257 struct ipr_ioa_cfg *ioa_cfg =
3258 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3259 u8 bus, target, lun;
3260 int did_work;
3261
3262 ENTER;
3263 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3264
41e9a696 3265 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3266 dump = ioa_cfg->dump;
3267 if (!dump) {
3268 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3269 return;
3270 }
3271 kref_get(&dump->kref);
3272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3273 ipr_get_ioa_dump(ioa_cfg, dump);
3274 kref_put(&dump->kref, ipr_release_dump);
3275
3276 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3277 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3278 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3280 return;
3281 }
3282
3283restart:
3284 do {
3285 did_work = 0;
f688f96d 3286 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4
LT		 3287 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3288 return;
3289 }
3290
3291 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3292 if (res->del_from_ml && res->sdev) {
3293 did_work = 1;
3294 sdev = res->sdev;
3295 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3296 if (!res->add_to_ml)
3297 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3298 else
3299 res->del_from_ml = 0;
1da177e4
LT		 3300 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3301 scsi_remove_device(sdev);
3302 scsi_device_put(sdev);
3303 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3304 }
3305 break;
3306 }
3307 }
203fa3fe 3308 } while (did_work);
1da177e4
LT		 3309
3310 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3311 if (res->add_to_ml) {
3e7ebdfa
WB		 3312 bus = res->bus;
3313 target = res->target;
3314 lun = res->lun;
1121b794 3315 res->add_to_ml = 0;
1da177e4
LT		 3316 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3317 scsi_add_device(ioa_cfg->host, bus, target, lun);
3318 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3319 goto restart;
3320 }
3321 }
3322
f688f96d 3323 ioa_cfg->scan_done = 1;
1da177e4 3324 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3325 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3326 LEAVE;
3327}
3328
3329#ifdef CONFIG_SCSI_IPR_TRACE
3330/**
3331 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3332 * @filp: open sysfs file
1da177e4 3333 * @kobj: kobject struct
91a69029 3334 * @bin_attr: bin_attribute struct
1da177e4
LT		 3335 * @buf: buffer
3336 * @off: offset
3337 * @count: buffer size
3338 *
3339 * Return value:
3340 * number of bytes printed to buffer
3341 **/
2c3c8bea 3342static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3343 struct bin_attribute *bin_attr,
3344 char *buf, loff_t off, size_t count)
1da177e4 3345{
ee959b00
TJ		 3346 struct device *dev = container_of(kobj, struct device, kobj);
3347 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3348 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3349 unsigned long lock_flags = 0;
d777aaf3 3350 ssize_t ret;
1da177e4
LT		 3351
3352 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3353 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3354 IPR_TRACE_SIZE);
1da177e4 3355 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3356
3357 return ret;
1da177e4
LT		 3358}
3359
3360static struct bin_attribute ipr_trace_attr = {
3361 .attr = {
3362 .name = "trace",
3363 .mode = S_IRUGO,
3364 },
3365 .size = 0,
3366 .read = ipr_read_trace,
3367};
3368#endif
3369
3370/**
3371 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3372 * @dev: class device struct
3373 * @buf: buffer
1da177e4
LT		 3374 *
3375 * Return value:
3376 * number of bytes printed to buffer
3377 **/
ee959b00
TJ		 3378static ssize_t ipr_show_fw_version(struct device *dev,
3379 struct device_attribute *attr, char *buf)
1da177e4 3380{
ee959b00 3381 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3382 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3383 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3384 unsigned long lock_flags = 0;
3385 int len;
3386
3387 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3388 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3389 ucode_vpd->major_release, ucode_vpd->card_type,
3390 ucode_vpd->minor_release[0],
3391 ucode_vpd->minor_release[1]);
3392 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3393 return len;
3394}
3395
ee959b00 3396static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3397 .attr = {
3398 .name = "fw_version",
3399 .mode = S_IRUGO,
3400 },
3401 .show = ipr_show_fw_version,
3402};
3403
3404/**
3405 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3406 * @dev: class device struct
3407 * @buf: buffer
1da177e4
LT		 3408 *
3409 * Return value:
3410 * number of bytes printed to buffer
3411 **/
ee959b00
TJ		 3412static ssize_t ipr_show_log_level(struct device *dev,
3413 struct device_attribute *attr, char *buf)
1da177e4 3414{
ee959b00 3415 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3416 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3417 unsigned long lock_flags = 0;
3418 int len;
3419
3420 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3421 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3422 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3423 return len;
3424}
3425
3426/**
3427 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3428 * @dev: class device struct
3429 * @buf: buffer
1da177e4
LT		 3430 *
3431 * Return value:
3432 * number of bytes printed to buffer
3433 **/
ee959b00 3434static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3435 struct device_attribute *attr,
1da177e4
LT		 3436 const char *buf, size_t count)
3437{
ee959b00 3438 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3439 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3440 unsigned long lock_flags = 0;
3441
3442 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3443 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3444 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3445 return strlen(buf);
3446}
3447
ee959b00 3448static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3449 .attr = {
3450 .name = "log_level",
3451 .mode = S_IRUGO | S_IWUSR,
3452 },
3453 .show = ipr_show_log_level,
3454 .store = ipr_store_log_level
3455};
3456
3457/**
3458 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3459 * @dev: device struct
3460 * @buf: buffer
3461 * @count: buffer size
1da177e4
LT		 3462 *
3463 * This function will reset the adapter and wait a reasonable
3464 * amount of time for any errors that the adapter might log.
3465 *
3466 * Return value:
3467 * count on success / other on failure
3468 **/
ee959b00
TJ		 3469static ssize_t ipr_store_diagnostics(struct device *dev,
3470 struct device_attribute *attr,
1da177e4
LT		 3471 const char *buf, size_t count)
3472{
ee959b00 3473 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3474 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3475 unsigned long lock_flags = 0;
3476 int rc = count;
3477
3478 if (!capable(CAP_SYS_ADMIN))
3479 return -EACCES;
3480
1da177e4 3481 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3482 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3483 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3484 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3485 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3486 }
3487
1da177e4
LT		 3488 ioa_cfg->errors_logged = 0;
3489 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3490
3491 if (ioa_cfg->in_reset_reload) {
3492 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3493 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3494
3495 /* Wait for a second for any errors to be logged */
3496 msleep(1000);
3497 } else {
3498 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3499 return -EIO;
3500 }
3501
3502 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3503 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3504 rc = -EIO;
3505 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3506
3507 return rc;
3508}
3509
ee959b00 3510static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3511 .attr = {
3512 .name = "run_diagnostics",
3513 .mode = S_IWUSR,
3514 },
3515 .store = ipr_store_diagnostics
3516};
3517
f37eb54b 3518/**
3519 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3520 * @class_dev: device struct
3521 * @buf: buffer
f37eb54b 3522 *
3523 * Return value:
3524 * number of bytes printed to buffer
3525 **/
ee959b00
TJ		 3526static ssize_t ipr_show_adapter_state(struct device *dev,
3527 struct device_attribute *attr, char *buf)
f37eb54b 3528{
ee959b00 3529 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3530 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3531 unsigned long lock_flags = 0;
3532 int len;
3533
3534 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3535 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b 3536 len = snprintf(buf, PAGE_SIZE, "offline\n");
3537 else
3538 len = snprintf(buf, PAGE_SIZE, "online\n");
3539 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3540 return len;
3541}
3542
3543/**
3544 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3545 * @dev: device struct
3546 * @buf: buffer
3547 * @count: buffer size
f37eb54b 3548 *
3549 * This function will change the adapter's state.
3550 *
3551 * Return value:
3552 * count on success / other on failure
3553 **/
ee959b00
TJ		 3554static ssize_t ipr_store_adapter_state(struct device *dev,
3555 struct device_attribute *attr,
f37eb54b 3556 const char *buf, size_t count)
3557{
ee959b00 3558 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3559 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3560 unsigned long lock_flags;
56d6aa33 3561 int result = count, i;
f37eb54b 3562
3563 if (!capable(CAP_SYS_ADMIN))
3564 return -EACCES;
3565
3566 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3567 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3568 !strncmp(buf, "online", 6)) {
3569 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3570 spin_lock(&ioa_cfg->hrrq[i]._lock);
3571 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3572 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3573 }
3574 wmb();
f37eb54b 3575 ioa_cfg->reset_retries = 0;
3576 ioa_cfg->in_ioa_bringdown = 0;
3577 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3578 }
3579 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3580 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3581
3582 return result;
3583}
3584
ee959b00 3585static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3586 .attr = {
49dd0961 3587 .name = "online_state",
f37eb54b 3588 .mode = S_IRUGO | S_IWUSR,
3589 },
3590 .show = ipr_show_adapter_state,
3591 .store = ipr_store_adapter_state
3592};
3593
1da177e4
LT		 3594/**
3595 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3596 * @dev: device struct
3597 * @buf: buffer
3598 * @count: buffer size
1da177e4
LT		 3599 *
3600 * This function will reset the adapter.
3601 *
3602 * Return value:
3603 * count on success / other on failure
3604 **/
ee959b00
TJ		 3605static ssize_t ipr_store_reset_adapter(struct device *dev,
3606 struct device_attribute *attr,
1da177e4
LT		 3607 const char *buf, size_t count)
3608{
ee959b00 3609 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3610 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3611 unsigned long lock_flags;
3612 int result = count;
3613
3614 if (!capable(CAP_SYS_ADMIN))
3615 return -EACCES;
3616
3617 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3618 if (!ioa_cfg->in_reset_reload)
3619 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3620 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3621 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3622
3623 return result;
3624}
3625
ee959b00 3626static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3627 .attr = {
3628 .name = "reset_host",
3629 .mode = S_IWUSR,
3630 },
3631 .store = ipr_store_reset_adapter
3632};
3633
b53d124a 3634static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3635 /**
3636 * ipr_show_iopoll_weight - Show ipr polling mode
3637 * @dev: class device struct
3638 * @buf: buffer
3639 *
3640 * Return value:
3641 * number of bytes printed to buffer
3642 **/
3643static ssize_t ipr_show_iopoll_weight(struct device *dev,
3644 struct device_attribute *attr, char *buf)
3645{
3646 struct Scsi_Host *shost = class_to_shost(dev);
3647 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3648 unsigned long lock_flags = 0;
3649 int len;
3650
3651 spin_lock_irqsave(shost->host_lock, lock_flags);
3652 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3653 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3654
3655 return len;
3656}
3657
3658/**
3659 * ipr_store_iopoll_weight - Change the adapter's polling mode
3660 * @dev: class device struct
3661 * @buf: buffer
3662 *
3663 * Return value:
3664 * number of bytes printed to buffer
3665 **/
3666static ssize_t ipr_store_iopoll_weight(struct device *dev,
3667 struct device_attribute *attr,
3668 const char *buf, size_t count)
3669{
3670 struct Scsi_Host *shost = class_to_shost(dev);
3671 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3672 unsigned long user_iopoll_weight;
3673 unsigned long lock_flags = 0;
3674 int i;
3675
3676 if (!ioa_cfg->sis64) {
3677 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3678 return -EINVAL;
3679 }
3680 if (kstrtoul(buf, 10, &user_iopoll_weight))
3681 return -EINVAL;
3682
3683 if (user_iopoll_weight > 256) {
3684 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3685 return -EINVAL;
3686 }
3687
3688 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3689 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3690 return strlen(buf);
3691 }
3692
89f8b33c 3693 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3694 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3695 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3696 }
3697
3698 spin_lock_irqsave(shost->host_lock, lock_flags);
3699 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3700 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3701 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3702 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3703 ioa_cfg->iopoll_weight, ipr_iopoll);
3704 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3705 }
3706 }
3707 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3708
3709 return strlen(buf);
3710}
3711
3712static struct device_attribute ipr_iopoll_weight_attr = {
3713 .attr = {
3714 .name = "iopoll_weight",
3715 .mode = S_IRUGO | S_IWUSR,
3716 },
3717 .show = ipr_show_iopoll_weight,
3718 .store = ipr_store_iopoll_weight
3719};
3720
1da177e4
LT		 3721/**
3722 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3723 * @buf_len: buffer length
3724 *
3725 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3726 * list to use for microcode download
3727 *
3728 * Return value:
3729 * pointer to sglist / NULL on failure
3730 **/
3731static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3732{
3733 int sg_size, order, bsize_elem, num_elem, i, j;
3734 struct ipr_sglist *sglist;
3735 struct scatterlist *scatterlist;
3736 struct page *page;
3737
3738 /* Get the minimum size per scatter/gather element */
3739 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3740
3741 /* Get the actual size per element */
3742 order = get_order(sg_size);
3743
3744 /* Determine the actual number of bytes per element */
3745 bsize_elem = PAGE_SIZE * (1 << order);
3746
3747 /* Determine the actual number of sg entries needed */
3748 if (buf_len % bsize_elem)
3749 num_elem = (buf_len / bsize_elem) + 1;
3750 else
3751 num_elem = buf_len / bsize_elem;
3752
3753 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3754 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3755 (sizeof(struct scatterlist) * (num_elem - 1)),
3756 GFP_KERNEL);
3757
3758 if (sglist == NULL) {
3759 ipr_trace;
3760 return NULL;
3761 }
3762
1da177e4 3763 scatterlist = sglist->scatterlist;
45711f1a 3764 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3765
3766 sglist->order = order;
3767 sglist->num_sg = num_elem;
3768
3769 /* Allocate a bunch of sg elements */
3770 for (i = 0; i < num_elem; i++) {
3771 page = alloc_pages(GFP_KERNEL, order);
3772 if (!page) {
3773 ipr_trace;
3774
3775 /* Free up what we already allocated */
3776 for (j = i - 1; j >= 0; j--)
45711f1a 3777 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3778 kfree(sglist);
3779 return NULL;
3780 }
3781
642f1490 3782 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3783 }
3784
3785 return sglist;
3786}
3787
3788/**
3789 * ipr_free_ucode_buffer - Frees a microcode download buffer
3790 * @p_dnld: scatter/gather list pointer
3791 *
3792 * Free a DMA'able ucode download buffer previously allocated with
3793 * ipr_alloc_ucode_buffer
3794 *
3795 * Return value:
3796 * nothing
3797 **/
3798static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3799{
3800 int i;
3801
3802 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3803 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3804
3805 kfree(sglist);
3806}
3807
3808/**
3809 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3810 * @sglist: scatter/gather list pointer
3811 * @buffer: buffer pointer
3812 * @len: buffer length
3813 *
3814 * Copy a microcode image from a user buffer into a buffer allocated by
3815 * ipr_alloc_ucode_buffer
3816 *
3817 * Return value:
3818 * 0 on success / other on failure
3819 **/
3820static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3821 u8 *buffer, u32 len)
3822{
3823 int bsize_elem, i, result = 0;
3824 struct scatterlist *scatterlist;
3825 void *kaddr;
3826
3827 /* Determine the actual number of bytes per element */
3828 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3829
3830 scatterlist = sglist->scatterlist;
3831
3832 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3833 struct page *page = sg_page(&scatterlist[i]);
3834
3835 kaddr = kmap(page);
1da177e4 3836 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3837 kunmap(page);
1da177e4
LT		 3838
3839 scatterlist[i].length = bsize_elem;
3840
3841 if (result != 0) {
3842 ipr_trace;
3843 return result;
3844 }
3845 }
3846
3847 if (len % bsize_elem) {
45711f1a
JA		 3848 struct page *page = sg_page(&scatterlist[i]);
3849
3850 kaddr = kmap(page);
1da177e4 3851 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3852 kunmap(page);
1da177e4
LT		 3853
3854 scatterlist[i].length = len % bsize_elem;
3855 }
3856
3857 sglist->buffer_len = len;
3858 return result;
3859}
3860
a32c055f
WB		 3861/**
3862 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3863 * @ipr_cmd: ipr command struct
3864 * @sglist: scatter/gather list
3865 *
3866 * Builds a microcode download IOA data list (IOADL).
3867 *
3868 **/
3869static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3870 struct ipr_sglist *sglist)
3871{
3872 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3873 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3874 struct scatterlist *scatterlist = sglist->scatterlist;
3875 int i;
3876
3877 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3878 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3879 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3880
3881 ioarcb->ioadl_len =
3882 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3883 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3884 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3885 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3886 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3887 }
3888
3889 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3890}
3891
1da177e4 3892/**
12baa420 3893 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3894 * @ipr_cmd: ipr command struct
3895 * @sglist: scatter/gather list
1da177e4 3896 *
12baa420 3897 * Builds a microcode download IOA data list (IOADL).
1da177e4 3898 *
1da177e4 3899 **/
12baa420 3900static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3901 struct ipr_sglist *sglist)
1da177e4 3902{
1da177e4 3903 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3904 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3905 struct scatterlist *scatterlist = sglist->scatterlist;
3906 int i;
3907
12baa420 3908 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3909 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3910 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3911
3912 ioarcb->ioadl_len =
1da177e4
LT		 3913 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3914
3915 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3916 ioadl[i].flags_and_data_len =
3917 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3918 ioadl[i].address =
3919 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3920 }
3921
12baa420 3922 ioadl[i-1].flags_and_data_len |=
3923 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3924}
3925
3926/**
3927 * ipr_update_ioa_ucode - Update IOA's microcode
3928 * @ioa_cfg: ioa config struct
3929 * @sglist: scatter/gather list
3930 *
3931 * Initiate an adapter reset to update the IOA's microcode
3932 *
3933 * Return value:
3934 * 0 on success / -EIO on failure
3935 **/
3936static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3937 struct ipr_sglist *sglist)
3938{
3939 unsigned long lock_flags;
3940
3941 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3942 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3943 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3944 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3945 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3946 }
12baa420 3947
3948 if (ioa_cfg->ucode_sglist) {
3949 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3950 dev_err(&ioa_cfg->pdev->dev,
3951 "Microcode download already in progress\n");
3952 return -EIO;
1da177e4 3953 }
12baa420 3954
d73341bf
AB		 3955 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3956 sglist->scatterlist, sglist->num_sg,
3957 DMA_TO_DEVICE);
12baa420 3958
3959 if (!sglist->num_dma_sg) {
3960 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3961 dev_err(&ioa_cfg->pdev->dev,
3962 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3963 return -EIO;
3964 }
3965
12baa420 3966 ioa_cfg->ucode_sglist = sglist;
3967 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3968 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3969 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3970
3971 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3972 ioa_cfg->ucode_sglist = NULL;
3973 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3974 return 0;
3975}
3976
3977/**
3978 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3979 * @class_dev: device struct
3980 * @buf: buffer
3981 * @count: buffer size
1da177e4
LT		 3982 *
3983 * This function will update the firmware on the adapter.
3984 *
3985 * Return value:
3986 * count on success / other on failure
3987 **/
ee959b00
TJ		 3988static ssize_t ipr_store_update_fw(struct device *dev,
3989 struct device_attribute *attr,
3990 const char *buf, size_t count)
1da177e4 3991{
ee959b00 3992 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3993 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3994 struct ipr_ucode_image_header *image_hdr;
3995 const struct firmware *fw_entry;
3996 struct ipr_sglist *sglist;
1da177e4
LT		 3997 char fname[100];
3998 char *src;
3999 int len, result, dnld_size;
4000
4001 if (!capable(CAP_SYS_ADMIN))
4002 return -EACCES;
4003
4004 len = snprintf(fname, 99, "%s", buf);
4005 fname[len-1] = '\0';
4006
203fa3fe 4007 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 4008 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4009 return -EIO;
4010 }
4011
4012 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4013
1da177e4
LT		 4014 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4015 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4016 sglist = ipr_alloc_ucode_buffer(dnld_size);
4017
4018 if (!sglist) {
4019 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4020 release_firmware(fw_entry);
4021 return -ENOMEM;
4022 }
4023
4024 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4025
4026 if (result) {
4027 dev_err(&ioa_cfg->pdev->dev,
4028 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4029 goto out;
1da177e4
LT		 4030 }
4031
14ed9cc7
WB		 4032 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4033
12baa420 4034 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4035
12baa420 4036 if (!result)
4037 result = count;
4038out:
1da177e4
LT		 4039 ipr_free_ucode_buffer(sglist);
4040 release_firmware(fw_entry);
12baa420 4041 return result;
1da177e4
LT		 4042}
4043
ee959b00 4044static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4045 .attr = {
4046 .name = "update_fw",
4047 .mode = S_IWUSR,
4048 },
4049 .store = ipr_store_update_fw
4050};
4051
75576bb9
WB		 4052/**
4053 * ipr_show_fw_type - Show the adapter's firmware type.
4054 * @dev: class device struct
4055 * @buf: buffer
4056 *
4057 * Return value:
4058 * number of bytes printed to buffer
4059 **/
4060static ssize_t ipr_show_fw_type(struct device *dev,
4061 struct device_attribute *attr, char *buf)
4062{
4063 struct Scsi_Host *shost = class_to_shost(dev);
4064 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4065 unsigned long lock_flags = 0;
4066 int len;
4067
4068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4069 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4070 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4071 return len;
4072}
4073
4074static struct device_attribute ipr_ioa_fw_type_attr = {
4075 .attr = {
4076 .name = "fw_type",
4077 .mode = S_IRUGO,
4078 },
4079 .show = ipr_show_fw_type
4080};
4081
ee959b00 4082static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4083 &ipr_fw_version_attr,
4084 &ipr_log_level_attr,
4085 &ipr_diagnostics_attr,
f37eb54b 4086 &ipr_ioa_state_attr,
1da177e4
LT		 4087 &ipr_ioa_reset_attr,
4088 &ipr_update_fw_attr,
75576bb9 4089 &ipr_ioa_fw_type_attr,
b53d124a 4090 &ipr_iopoll_weight_attr,
1da177e4
LT		 4091 NULL,
4092};
4093
4094#ifdef CONFIG_SCSI_IPR_DUMP
4095/**
4096 * ipr_read_dump - Dump the adapter
2c3c8bea 4097 * @filp: open sysfs file
1da177e4 4098 * @kobj: kobject struct
91a69029 4099 * @bin_attr: bin_attribute struct
1da177e4
LT		 4100 * @buf: buffer
4101 * @off: offset
4102 * @count: buffer size
4103 *
4104 * Return value:
4105 * number of bytes printed to buffer
4106 **/
2c3c8bea 4107static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4108 struct bin_attribute *bin_attr,
4109 char *buf, loff_t off, size_t count)
1da177e4 4110{
ee959b00 4111 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4112 struct Scsi_Host *shost = class_to_shost(cdev);
4113 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4114 struct ipr_dump *dump;
4115 unsigned long lock_flags = 0;
4116 char *src;
4d4dd706 4117 int len, sdt_end;
1da177e4
LT		 4118 size_t rc = count;
4119
4120 if (!capable(CAP_SYS_ADMIN))
4121 return -EACCES;
4122
4123 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4124 dump = ioa_cfg->dump;
4125
4126 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4128 return 0;
4129 }
4130 kref_get(&dump->kref);
4131 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4132
4133 if (off > dump->driver_dump.hdr.len) {
4134 kref_put(&dump->kref, ipr_release_dump);
4135 return 0;
4136 }
4137
4138 if (off + count > dump->driver_dump.hdr.len) {
4139 count = dump->driver_dump.hdr.len - off;
4140 rc = count;
4141 }
4142
4143 if (count && off < sizeof(dump->driver_dump)) {
4144 if (off + count > sizeof(dump->driver_dump))
4145 len = sizeof(dump->driver_dump) - off;
4146 else
4147 len = count;
4148 src = (u8 *)&dump->driver_dump + off;
4149 memcpy(buf, src, len);
4150 buf += len;
4151 off += len;
4152 count -= len;
4153 }
4154
4155 off -= sizeof(dump->driver_dump);
4156
4d4dd706
KSS		 4157 if (ioa_cfg->sis64)
4158 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4159 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4160 sizeof(struct ipr_sdt_entry));
4161 else
4162 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4163 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4164
4165 if (count && off < sdt_end) {
4166 if (off + count > sdt_end)
4167 len = sdt_end - off;
1da177e4
LT		 4168 else
4169 len = count;
4170 src = (u8 *)&dump->ioa_dump + off;
4171 memcpy(buf, src, len);
4172 buf += len;
4173 off += len;
4174 count -= len;
4175 }
4176
4d4dd706 4177 off -= sdt_end;
1da177e4
LT		 4178
4179 while (count) {
4180 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4181 len = PAGE_ALIGN(off) - off;
4182 else
4183 len = count;
4184 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4185 src += off & ~PAGE_MASK;
4186 memcpy(buf, src, len);
4187 buf += len;
4188 off += len;
4189 count -= len;
4190 }
4191
4192 kref_put(&dump->kref, ipr_release_dump);
4193 return rc;
4194}
4195
4196/**
4197 * ipr_alloc_dump - Prepare for adapter dump
4198 * @ioa_cfg: ioa config struct
4199 *
4200 * Return value:
4201 * 0 on success / other on failure
4202 **/
4203static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4204{
4205 struct ipr_dump *dump;
4d4dd706 4206 __be32 **ioa_data;
1da177e4
LT		 4207 unsigned long lock_flags = 0;
4208
0bc42e35 4209 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4210
4211 if (!dump) {
4212 ipr_err("Dump memory allocation failed\n");
4213 return -ENOMEM;
4214 }
4215
4d4dd706
KSS		 4216 if (ioa_cfg->sis64)
4217 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4218 else
4219 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4220
4221 if (!ioa_data) {
4222 ipr_err("Dump memory allocation failed\n");
4223 kfree(dump);
4224 return -ENOMEM;
4225 }
4226
4227 dump->ioa_dump.ioa_data = ioa_data;
4228
1da177e4
LT		 4229 kref_init(&dump->kref);
4230 dump->ioa_cfg = ioa_cfg;
4231
4232 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4233
4234 if (INACTIVE != ioa_cfg->sdt_state) {
4235 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4236 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4237 kfree(dump);
4238 return 0;
4239 }
4240
4241 ioa_cfg->dump = dump;
4242 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4243 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4244 ioa_cfg->dump_taken = 1;
4245 schedule_work(&ioa_cfg->work_q);
4246 }
4247 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4248
1da177e4
LT		 4249 return 0;
4250}
4251
4252/**
4253 * ipr_free_dump - Free adapter dump memory
4254 * @ioa_cfg: ioa config struct
4255 *
4256 * Return value:
4257 * 0 on success / other on failure
4258 **/
4259static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4260{
4261 struct ipr_dump *dump;
4262 unsigned long lock_flags = 0;
4263
4264 ENTER;
4265
4266 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4267 dump = ioa_cfg->dump;
4268 if (!dump) {
4269 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4270 return 0;
4271 }
4272
4273 ioa_cfg->dump = NULL;
4274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4275
4276 kref_put(&dump->kref, ipr_release_dump);
4277
4278 LEAVE;
4279 return 0;
4280}
4281
4282/**
4283 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4284 * @filp: open sysfs file
1da177e4 4285 * @kobj: kobject struct
91a69029 4286 * @bin_attr: bin_attribute struct
1da177e4
LT		 4287 * @buf: buffer
4288 * @off: offset
4289 * @count: buffer size
4290 *
4291 * Return value:
4292 * number of bytes printed to buffer
4293 **/
2c3c8bea 4294static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4295 struct bin_attribute *bin_attr,
4296 char *buf, loff_t off, size_t count)
1da177e4 4297{
ee959b00 4298 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4299 struct Scsi_Host *shost = class_to_shost(cdev);
4300 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4301 int rc;
4302
4303 if (!capable(CAP_SYS_ADMIN))
4304 return -EACCES;
4305
4306 if (buf[0] == '1')
4307 rc = ipr_alloc_dump(ioa_cfg);
4308 else if (buf[0] == '0')
4309 rc = ipr_free_dump(ioa_cfg);
4310 else
4311 return -EINVAL;
4312
4313 if (rc)
4314 return rc;
4315 else
4316 return count;
4317}
4318
4319static struct bin_attribute ipr_dump_attr = {
4320 .attr = {
4321 .name = "dump",
4322 .mode = S_IRUSR | S_IWUSR,
4323 },
4324 .size = 0,
4325 .read = ipr_read_dump,
4326 .write = ipr_write_dump
4327};
4328#else
4329static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4330#endif
4331
4332/**
4333 * ipr_change_queue_depth - Change the device's queue depth
4334 * @sdev: scsi device struct
4335 * @qdepth: depth to set
e881a172 4336 * @reason: calling context
1da177e4
LT		 4337 *
4338 * Return value:
4339 * actual depth set
4340 **/
db5ed4df 4341static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 4342{
35a39691
BK		 4343 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4344 struct ipr_resource_entry *res;
4345 unsigned long lock_flags = 0;
4346
4347 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4348 res = (struct ipr_resource_entry *)sdev->hostdata;
4349
4350 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4351 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4352 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4353
db5ed4df 4354 scsi_change_queue_depth(sdev, qdepth);
1da177e4
LT		 4355 return sdev->queue_depth;
4356}
4357
1da177e4
LT		 4358/**
4359 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4360 * @dev: device struct
46d74563 4361 * @attr: device attribute structure
1da177e4
LT		 4362 * @buf: buffer
4363 *
4364 * Return value:
4365 * number of bytes printed to buffer
4366 **/
10523b3b 4367static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4368{
4369 struct scsi_device *sdev = to_scsi_device(dev);
4370 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4371 struct ipr_resource_entry *res;
4372 unsigned long lock_flags = 0;
4373 ssize_t len = -ENXIO;
4374
4375 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4376 res = (struct ipr_resource_entry *)sdev->hostdata;
4377 if (res)
3e7ebdfa 4378 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4379 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4380 return len;
4381}
4382
4383static struct device_attribute ipr_adapter_handle_attr = {
4384 .attr = {
4385 .name = "adapter_handle",
4386 .mode = S_IRUSR,
4387 },
4388 .show = ipr_show_adapter_handle
4389};
4390
3e7ebdfa 4391/**
5adcbeb3
WB		 4392 * ipr_show_resource_path - Show the resource path or the resource address for
4393 * this device.
3e7ebdfa 4394 * @dev: device struct
46d74563 4395 * @attr: device attribute structure
3e7ebdfa
WB		 4396 * @buf: buffer
4397 *
4398 * Return value:
4399 * number of bytes printed to buffer
4400 **/
4401static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4402{
4403 struct scsi_device *sdev = to_scsi_device(dev);
4404 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4405 struct ipr_resource_entry *res;
4406 unsigned long lock_flags = 0;
4407 ssize_t len = -ENXIO;
4408 char buffer[IPR_MAX_RES_PATH_LENGTH];
4409
4410 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4411 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4412 if (res && ioa_cfg->sis64)
3e7ebdfa 4413 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4414 __ipr_format_res_path(res->res_path, buffer,
4415 sizeof(buffer)));
5adcbeb3
WB		 4416 else if (res)
4417 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4418 res->bus, res->target, res->lun);
4419
3e7ebdfa
WB		 4420 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4421 return len;
4422}
4423
4424static struct device_attribute ipr_resource_path_attr = {
4425 .attr = {
4426 .name = "resource_path",
75576bb9 4427 .mode = S_IRUGO,
3e7ebdfa
WB		 4428 },
4429 .show = ipr_show_resource_path
4430};
4431
46d74563
WB		 4432/**
4433 * ipr_show_device_id - Show the device_id for this device.
4434 * @dev: device struct
4435 * @attr: device attribute structure
4436 * @buf: buffer
4437 *
4438 * Return value:
4439 * number of bytes printed to buffer
4440 **/
4441static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4442{
4443 struct scsi_device *sdev = to_scsi_device(dev);
4444 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4445 struct ipr_resource_entry *res;
4446 unsigned long lock_flags = 0;
4447 ssize_t len = -ENXIO;
4448
4449 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4450 res = (struct ipr_resource_entry *)sdev->hostdata;
4451 if (res && ioa_cfg->sis64)
4452 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4453 else if (res)
4454 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4455
4456 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4457 return len;
4458}
4459
4460static struct device_attribute ipr_device_id_attr = {
4461 .attr = {
4462 .name = "device_id",
4463 .mode = S_IRUGO,
4464 },
4465 .show = ipr_show_device_id
4466};
4467
75576bb9
WB		 4468/**
4469 * ipr_show_resource_type - Show the resource type for this device.
4470 * @dev: device struct
46d74563 4471 * @attr: device attribute structure
75576bb9
WB		 4472 * @buf: buffer
4473 *
4474 * Return value:
4475 * number of bytes printed to buffer
4476 **/
4477static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4478{
4479 struct scsi_device *sdev = to_scsi_device(dev);
4480 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4481 struct ipr_resource_entry *res;
4482 unsigned long lock_flags = 0;
4483 ssize_t len = -ENXIO;
4484
4485 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4486 res = (struct ipr_resource_entry *)sdev->hostdata;
4487
4488 if (res)
4489 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4490
4491 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4492 return len;
4493}
4494
4495static struct device_attribute ipr_resource_type_attr = {
4496 .attr = {
4497 .name = "resource_type",
4498 .mode = S_IRUGO,
4499 },
4500 .show = ipr_show_resource_type
4501};
4502
f8ee25d7
WX		 4503/**
4504 * ipr_show_raw_mode - Show the adapter's raw mode
4505 * @dev: class device struct
4506 * @buf: buffer
4507 *
4508 * Return value:
4509 * number of bytes printed to buffer
4510 **/
4511static ssize_t ipr_show_raw_mode(struct device *dev,
4512 struct device_attribute *attr, char *buf)
4513{
4514 struct scsi_device *sdev = to_scsi_device(dev);
4515 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4516 struct ipr_resource_entry *res;
4517 unsigned long lock_flags = 0;
4518 ssize_t len;
4519
4520 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4521 res = (struct ipr_resource_entry *)sdev->hostdata;
4522 if (res)
4523 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4524 else
4525 len = -ENXIO;
4526 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4527 return len;
4528}
4529
4530/**
4531 * ipr_store_raw_mode - Change the adapter's raw mode
4532 * @dev: class device struct
4533 * @buf: buffer
4534 *
4535 * Return value:
4536 * number of bytes printed to buffer
4537 **/
4538static ssize_t ipr_store_raw_mode(struct device *dev,
4539 struct device_attribute *attr,
4540 const char *buf, size_t count)
4541{
4542 struct scsi_device *sdev = to_scsi_device(dev);
4543 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4544 struct ipr_resource_entry *res;
4545 unsigned long lock_flags = 0;
4546 ssize_t len;
4547
4548 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4549 res = (struct ipr_resource_entry *)sdev->hostdata;
4550 if (res) {
4551 if (ioa_cfg->sis64 && ipr_is_af_dasd_device(res)) {
4552 res->raw_mode = simple_strtoul(buf, NULL, 10);
4553 len = strlen(buf);
4554 if (res->sdev)
4555 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4556 res->raw_mode ? "enabled" : "disabled");
4557 } else
4558 len = -EINVAL;
4559 } else
4560 len = -ENXIO;
4561 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4562 return len;
4563}
4564
4565static struct device_attribute ipr_raw_mode_attr = {
4566 .attr = {
4567 .name = "raw_mode",
4568 .mode = S_IRUGO | S_IWUSR,
4569 },
4570 .show = ipr_show_raw_mode,
4571 .store = ipr_store_raw_mode
4572};
4573
1da177e4
LT		 4574static struct device_attribute *ipr_dev_attrs[] = {
4575 &ipr_adapter_handle_attr,
3e7ebdfa 4576 &ipr_resource_path_attr,
46d74563 4577 &ipr_device_id_attr,
75576bb9 4578 &ipr_resource_type_attr,
f8ee25d7 4579 &ipr_raw_mode_attr,
1da177e4
LT		 4580 NULL,
4581};
4582
4583/**
4584 * ipr_biosparam - Return the HSC mapping
4585 * @sdev: scsi device struct
4586 * @block_device: block device pointer
4587 * @capacity: capacity of the device
4588 * @parm: Array containing returned HSC values.
4589 *
4590 * This function generates the HSC parms that fdisk uses.
4591 * We want to make sure we return something that places partitions
4592 * on 4k boundaries for best performance with the IOA.
4593 *
4594 * Return value:
4595 * 0 on success
4596 **/
4597static int ipr_biosparam(struct scsi_device *sdev,
4598 struct block_device *block_device,
4599 sector_t capacity, int *parm)
4600{
4601 int heads, sectors;
4602 sector_t cylinders;
4603
4604 heads = 128;
4605 sectors = 32;
4606
4607 cylinders = capacity;
4608 sector_div(cylinders, (128 * 32));
4609
4610 /* return result */
4611 parm[0] = heads;
4612 parm[1] = sectors;
4613 parm[2] = cylinders;
4614
4615 return 0;
4616}
4617
35a39691
BK		 4618/**
4619 * ipr_find_starget - Find target based on bus/target.
4620 * @starget: scsi target struct
4621 *
4622 * Return value:
4623 * resource entry pointer if found / NULL if not found
4624 **/
4625static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4626{
4627 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4628 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4629 struct ipr_resource_entry *res;
4630
4631 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4632 if ((res->bus == starget->channel) &&
0ee1d714 4633 (res->target == starget->id)) {
35a39691
BK		 4634 return res;
4635 }
4636 }
4637
4638 return NULL;
4639}
4640
4641static struct ata_port_info sata_port_info;
4642
4643/**
4644 * ipr_target_alloc - Prepare for commands to a SCSI target
4645 * @starget: scsi target struct
4646 *
4647 * If the device is a SATA device, this function allocates an
4648 * ATA port with libata, else it does nothing.
4649 *
4650 * Return value:
4651 * 0 on success / non-0 on failure
4652 **/
4653static int ipr_target_alloc(struct scsi_target *starget)
4654{
4655 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4656 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4657 struct ipr_sata_port *sata_port;
4658 struct ata_port *ap;
4659 struct ipr_resource_entry *res;
4660 unsigned long lock_flags;
4661
4662 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4663 res = ipr_find_starget(starget);
4664 starget->hostdata = NULL;
4665
4666 if (res && ipr_is_gata(res)) {
4667 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4668 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4669 if (!sata_port)
4670 return -ENOMEM;
4671
4672 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4673 if (ap) {
4674 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4675 sata_port->ioa_cfg = ioa_cfg;
4676 sata_port->ap = ap;
4677 sata_port->res = res;
4678
4679 res->sata_port = sata_port;
4680 ap->private_data = sata_port;
4681 starget->hostdata = sata_port;
4682 } else {
4683 kfree(sata_port);
4684 return -ENOMEM;
4685 }
4686 }
4687 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4688
4689 return 0;
4690}
4691
4692/**
4693 * ipr_target_destroy - Destroy a SCSI target
4694 * @starget: scsi target struct
4695 *
4696 * If the device was a SATA device, this function frees the libata
4697 * ATA port, else it does nothing.
4698 *
4699 **/
4700static void ipr_target_destroy(struct scsi_target *starget)
4701{
4702 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4703 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4704 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4705
4706 if (ioa_cfg->sis64) {
0ee1d714
BK		 4707 if (!ipr_find_starget(starget)) {
4708 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4709 clear_bit(starget->id, ioa_cfg->array_ids);
4710 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4711 clear_bit(starget->id, ioa_cfg->vset_ids);
4712 else if (starget->channel == 0)
4713 clear_bit(starget->id, ioa_cfg->target_ids);
4714 }
3e7ebdfa 4715 }
35a39691
BK		 4716
4717 if (sata_port) {
4718 starget->hostdata = NULL;
4719 ata_sas_port_destroy(sata_port->ap);
4720 kfree(sata_port);
4721 }
4722}
4723
4724/**
4725 * ipr_find_sdev - Find device based on bus/target/lun.
4726 * @sdev: scsi device struct
4727 *
4728 * Return value:
4729 * resource entry pointer if found / NULL if not found
4730 **/
4731static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4732{
4733 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4734 struct ipr_resource_entry *res;
4735
4736 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4737 if ((res->bus == sdev->channel) &&
4738 (res->target == sdev->id) &&
4739 (res->lun == sdev->lun))
35a39691
BK		 4740 return res;
4741 }
4742
4743 return NULL;
4744}
4745
1da177e4
LT		 4746/**
4747 * ipr_slave_destroy - Unconfigure a SCSI device
4748 * @sdev: scsi device struct
4749 *
4750 * Return value:
4751 * nothing
4752 **/
4753static void ipr_slave_destroy(struct scsi_device *sdev)
4754{
4755 struct ipr_resource_entry *res;
4756 struct ipr_ioa_cfg *ioa_cfg;
4757 unsigned long lock_flags = 0;
4758
4759 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4760
4761 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4762 res = (struct ipr_resource_entry *) sdev->hostdata;
4763 if (res) {
35a39691 4764 if (res->sata_port)
3e4ec344 4765 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4766 sdev->hostdata = NULL;
4767 res->sdev = NULL;
35a39691 4768 res->sata_port = NULL;
1da177e4
LT		 4769 }
4770 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4771}
4772
4773/**
4774 * ipr_slave_configure - Configure a SCSI device
4775 * @sdev: scsi device struct
4776 *
4777 * This function configures the specified scsi device.
4778 *
4779 * Return value:
4780 * 0 on success
4781 **/
4782static int ipr_slave_configure(struct scsi_device *sdev)
4783{
4784 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4785 struct ipr_resource_entry *res;
dd406ef8 4786 struct ata_port *ap = NULL;
1da177e4 4787 unsigned long lock_flags = 0;
3e7ebdfa 4788 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4789
4790 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4791 res = sdev->hostdata;
4792 if (res) {
4793 if (ipr_is_af_dasd_device(res))
4794 sdev->type = TYPE_RAID;
0726ce26 4795 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4796 sdev->scsi_level = 4;
0726ce26 4797 sdev->no_uld_attach = 1;
4798 }
1da177e4 4799 if (ipr_is_vset_device(res)) {
60654e25 4800 sdev->scsi_level = SCSI_SPC_3;
242f9dcb
JA		 4801 blk_queue_rq_timeout(sdev->request_queue,
4802 IPR_VSET_RW_TIMEOUT);
086fa5ff 4803 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4804 }
dd406ef8
BK		 4805 if (ipr_is_gata(res) && res->sata_port)
4806 ap = res->sata_port->ap;
4807 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4808
4809 if (ap) {
db5ed4df 4810 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4811 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4812 }
4813
3e7ebdfa
WB		 4814 if (ioa_cfg->sis64)
4815 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4816 ipr_format_res_path(ioa_cfg,
4817 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4818 return 0;
1da177e4
LT		 4819 }
4820 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4821 return 0;
4822}
4823
35a39691
BK		 4824/**
4825 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4826 * @sdev: scsi device struct
4827 *
4828 * This function initializes an ATA port so that future commands
4829 * sent through queuecommand will work.
4830 *
4831 * Return value:
4832 * 0 on success
4833 **/
4834static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4835{
4836 struct ipr_sata_port *sata_port = NULL;
4837 int rc = -ENXIO;
4838
4839 ENTER;
4840 if (sdev->sdev_target)
4841 sata_port = sdev->sdev_target->hostdata;
b2024459 4842 if (sata_port) {
35a39691 4843 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4844 if (rc == 0)
4845 rc = ata_sas_sync_probe(sata_port->ap);
4846 }
4847
35a39691
BK		 4848 if (rc)
4849 ipr_slave_destroy(sdev);
4850
4851 LEAVE;
4852 return rc;
4853}
4854
1da177e4
LT		 4855/**
4856 * ipr_slave_alloc - Prepare for commands to a device.
4857 * @sdev: scsi device struct
4858 *
4859 * This function saves a pointer to the resource entry
4860 * in the scsi device struct if the device exists. We
4861 * can then use this pointer in ipr_queuecommand when
4862 * handling new commands.
4863 *
4864 * Return value:
692aebfc 4865 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4866 **/
4867static int ipr_slave_alloc(struct scsi_device *sdev)
4868{
4869 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4870 struct ipr_resource_entry *res;
4871 unsigned long lock_flags;
692aebfc 4872 int rc = -ENXIO;
1da177e4
LT		 4873
4874 sdev->hostdata = NULL;
4875
4876 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4877
35a39691
BK		 4878 res = ipr_find_sdev(sdev);
4879 if (res) {
4880 res->sdev = sdev;
4881 res->add_to_ml = 0;
4882 res->in_erp = 0;
4883 sdev->hostdata = res;
4884 if (!ipr_is_naca_model(res))
4885 res->needs_sync_complete = 1;
4886 rc = 0;
4887 if (ipr_is_gata(res)) {
4888 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4889 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4890 }
4891 }
4892
4893 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4894
692aebfc 4895 return rc;
1da177e4
LT		 4896}
4897
6cdb0817
BK		 4898/**
4899 * ipr_match_lun - Match function for specified LUN
4900 * @ipr_cmd: ipr command struct
4901 * @device: device to match (sdev)
4902 *
4903 * Returns:
4904 * 1 if command matches sdev / 0 if command does not match sdev
4905 **/
4906static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4907{
4908 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4909 return 1;
4910 return 0;
4911}
4912
4913/**
4914 * ipr_wait_for_ops - Wait for matching commands to complete
4915 * @ipr_cmd: ipr command struct
4916 * @device: device to match (sdev)
4917 * @match: match function to use
4918 *
4919 * Returns:
4920 * SUCCESS / FAILED
4921 **/
4922static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4923 int (*match)(struct ipr_cmnd *, void *))
4924{
4925 struct ipr_cmnd *ipr_cmd;
4926 int wait;
4927 unsigned long flags;
4928 struct ipr_hrr_queue *hrrq;
4929 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4930 DECLARE_COMPLETION_ONSTACK(comp);
4931
4932 ENTER;
4933 do {
4934 wait = 0;
4935
4936 for_each_hrrq(hrrq, ioa_cfg) {
4937 spin_lock_irqsave(hrrq->lock, flags);
4938 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4939 if (match(ipr_cmd, device)) {
4940 ipr_cmd->eh_comp = &comp;
4941 wait++;
4942 }
4943 }
4944 spin_unlock_irqrestore(hrrq->lock, flags);
4945 }
4946
4947 if (wait) {
4948 timeout = wait_for_completion_timeout(&comp, timeout);
4949
4950 if (!timeout) {
4951 wait = 0;
4952
4953 for_each_hrrq(hrrq, ioa_cfg) {
4954 spin_lock_irqsave(hrrq->lock, flags);
4955 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4956 if (match(ipr_cmd, device)) {
4957 ipr_cmd->eh_comp = NULL;
4958 wait++;
4959 }
4960 }
4961 spin_unlock_irqrestore(hrrq->lock, flags);
4962 }
4963
4964 if (wait)
4965 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4966 LEAVE;
4967 return wait ? FAILED : SUCCESS;
4968 }
4969 }
4970 } while (wait);
4971
4972 LEAVE;
4973 return SUCCESS;
4974}
4975
70233ac5 4976static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4977{
4978 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4979 unsigned long lock_flags = 0;
4980 int rc = SUCCESS;
1da177e4
LT		 4981
4982 ENTER;
70233ac5 4983 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4984 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4985
96b04db9 4986 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4987 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4988 dev_err(&ioa_cfg->pdev->dev,
4989 "Adapter being reset as a result of error recovery.\n");
1da177e4 4990
a92fa25c
KSS		 4991 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4992 ioa_cfg->sdt_state = GET_DUMP;
4993 }
1da177e4 4994
70233ac5 4995 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4996 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4997 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 4998
70233ac5 4999 /* If we got hit with a host reset while we were already resetting
5000 the adapter for some reason, and the reset failed. */
5001 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5002 ipr_trace;
5003 rc = FAILED;
5004 }
df0ae249 5005
70233ac5 5006 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5007 LEAVE;
df0ae249
JG		 5008 return rc;
5009}
5010
c6513096
BK		 5011/**
5012 * ipr_device_reset - Reset the device
5013 * @ioa_cfg: ioa config struct
5014 * @res: resource entry struct
5015 *
5016 * This function issues a device reset to the affected device.
5017 * If the device is a SCSI device, a LUN reset will be sent
5018 * to the device first. If that does not work, a target reset
35a39691
BK		 5019 * will be sent. If the device is a SATA device, a PHY reset will
5020 * be sent.
c6513096
BK		 5021 *
5022 * Return value:
5023 * 0 on success / non-zero on failure
5024 **/
5025static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5026 struct ipr_resource_entry *res)
5027{
5028 struct ipr_cmnd *ipr_cmd;
5029 struct ipr_ioarcb *ioarcb;
5030 struct ipr_cmd_pkt *cmd_pkt;
35a39691 5031 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 5032 u32 ioasc;
5033
5034 ENTER;
5035 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5036 ioarcb = &ipr_cmd->ioarcb;
5037 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 5038
5039 if (ipr_cmd->ioa_cfg->sis64) {
5040 regs = &ipr_cmd->i.ata_ioadl.regs;
5041 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5042 } else
5043 regs = &ioarcb->u.add_data.u.regs;
c6513096 5044
3e7ebdfa 5045 ioarcb->res_handle = res->res_handle;
c6513096
BK		 5046 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5047 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 5048 if (ipr_is_gata(res)) {
5049 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 5050 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 5051 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5052 }
c6513096
BK		 5053
5054 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 5055 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 5056 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 5057 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5058 if (ipr_cmd->ioa_cfg->sis64)
5059 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5060 sizeof(struct ipr_ioasa_gata));
5061 else
5062 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5063 sizeof(struct ipr_ioasa_gata));
5064 }
c6513096
BK		 5065
5066 LEAVE;
203fa3fe 5067 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 5068}
5069
35a39691
BK		 5070/**
5071 * ipr_sata_reset - Reset the SATA port
cc0680a5 5072 * @link: SATA link to reset
35a39691
BK		 5073 * @classes: class of the attached device
5074 *
cc0680a5 5075 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 5076 *
5077 * Return value:
5078 * 0 on success / non-zero on failure
5079 **/
cc0680a5 5080static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 5081 unsigned long deadline)
35a39691 5082{
cc0680a5 5083 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 5084 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5085 struct ipr_resource_entry *res;
5086 unsigned long lock_flags = 0;
5087 int rc = -ENXIO;
5088
5089 ENTER;
5090 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 5091 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 5092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5093 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5094 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5095 }
5096
35a39691
BK		 5097 res = sata_port->res;
5098 if (res) {
5099 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 5100 *classes = res->ata_class;
35a39691
BK		 5101 }
5102
5103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5104 LEAVE;
5105 return rc;
5106}
5107
1da177e4
LT		 5108/**
5109 * ipr_eh_dev_reset - Reset the device
5110 * @scsi_cmd: scsi command struct
5111 *
5112 * This function issues a device reset to the affected device.
5113 * A LUN reset will be sent to the device first. If that does
5114 * not work, a target reset will be sent.
5115 *
5116 * Return value:
5117 * SUCCESS / FAILED
5118 **/
203fa3fe 5119static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5120{
5121 struct ipr_cmnd *ipr_cmd;
5122 struct ipr_ioa_cfg *ioa_cfg;
5123 struct ipr_resource_entry *res;
35a39691
BK		 5124 struct ata_port *ap;
5125 int rc = 0;
05a6538a 5126 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5127
5128 ENTER;
5129 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5130 res = scsi_cmd->device->hostdata;
5131
eeb88307 5132 if (!res)
1da177e4
LT		 5133 return FAILED;
5134
5135 /*
5136 * If we are currently going through reset/reload, return failed. This will force the
5137 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5138 * reset to complete
5139 */
5140 if (ioa_cfg->in_reset_reload)
5141 return FAILED;
56d6aa33 5142 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5143 return FAILED;
5144
05a6538a 5145 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5146 spin_lock(&hrrq->_lock);
05a6538a 5147 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5148 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5149 if (ipr_cmd->scsi_cmd)
5150 ipr_cmd->done = ipr_scsi_eh_done;
5151 if (ipr_cmd->qc)
5152 ipr_cmd->done = ipr_sata_eh_done;
5153 if (ipr_cmd->qc &&
5154 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5155 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5156 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5157 }
7402ecef 5158 }
1da177e4 5159 }
56d6aa33 5160 spin_unlock(&hrrq->_lock);
1da177e4 5161 }
1da177e4 5162 res->resetting_device = 1;
fb3ed3cb 5163 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5164
5165 if (ipr_is_gata(res) && res->sata_port) {
5166 ap = res->sata_port->ap;
5167 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5168 ata_std_error_handler(ap);
35a39691 5169 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5170
05a6538a 5171 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5172 spin_lock(&hrrq->_lock);
05a6538a 5173 list_for_each_entry(ipr_cmd,
5174 &hrrq->hrrq_pending_q, queue) {
5175 if (ipr_cmd->ioarcb.res_handle ==
5176 res->res_handle) {
5177 rc = -EIO;
5178 break;
5179 }
5af23d26 5180 }
56d6aa33 5181 spin_unlock(&hrrq->_lock);
5af23d26 5182 }
35a39691
BK		 5183 } else
5184 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5185 res->resetting_device = 0;
0b1f8d44 5186 res->reset_occurred = 1;
1da177e4 5187
1da177e4 5188 LEAVE;
203fa3fe 5189 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5190}
5191
203fa3fe 5192static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5193{
5194 int rc;
6cdb0817
BK		 5195 struct ipr_ioa_cfg *ioa_cfg;
5196
5197 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
94d0e7b8
JG		 5198
5199 spin_lock_irq(cmd->device->host->host_lock);
5200 rc = __ipr_eh_dev_reset(cmd);
5201 spin_unlock_irq(cmd->device->host->host_lock);
5202
6cdb0817
BK		 5203 if (rc == SUCCESS)
5204 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5205
94d0e7b8
JG		 5206 return rc;
5207}
5208
1da177e4
LT		 5209/**
5210 * ipr_bus_reset_done - Op done function for bus reset.
5211 * @ipr_cmd: ipr command struct
5212 *
5213 * This function is the op done function for a bus reset
5214 *
5215 * Return value:
5216 * none
5217 **/
5218static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5219{
5220 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5221 struct ipr_resource_entry *res;
5222
5223 ENTER;
3e7ebdfa
WB		 5224 if (!ioa_cfg->sis64)
5225 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5226 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5227 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5228 break;
5229 }
1da177e4 5230 }
1da177e4
LT		 5231
5232 /*
5233 * If abort has not completed, indicate the reset has, else call the
5234 * abort's done function to wake the sleeping eh thread
5235 */
5236 if (ipr_cmd->sibling->sibling)
5237 ipr_cmd->sibling->sibling = NULL;
5238 else
5239 ipr_cmd->sibling->done(ipr_cmd->sibling);
5240
05a6538a 5241 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5242 LEAVE;
5243}
5244
5245/**
5246 * ipr_abort_timeout - An abort task has timed out
5247 * @ipr_cmd: ipr command struct
5248 *
5249 * This function handles when an abort task times out. If this
5250 * happens we issue a bus reset since we have resources tied
5251 * up that must be freed before returning to the midlayer.
5252 *
5253 * Return value:
5254 * none
5255 **/
5256static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5257{
5258 struct ipr_cmnd *reset_cmd;
5259 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5260 struct ipr_cmd_pkt *cmd_pkt;
5261 unsigned long lock_flags = 0;
5262
5263 ENTER;
5264 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5265 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5266 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5267 return;
5268 }
5269
fb3ed3cb 5270 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5271 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5272 ipr_cmd->sibling = reset_cmd;
5273 reset_cmd->sibling = ipr_cmd;
5274 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5275 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5276 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5277 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5278 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5279
5280 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5282 LEAVE;
5283}
5284
5285/**
5286 * ipr_cancel_op - Cancel specified op
5287 * @scsi_cmd: scsi command struct
5288 *
5289 * This function cancels specified op.
5290 *
5291 * Return value:
5292 * SUCCESS / FAILED
5293 **/
203fa3fe 5294static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5295{
5296 struct ipr_cmnd *ipr_cmd;
5297 struct ipr_ioa_cfg *ioa_cfg;
5298 struct ipr_resource_entry *res;
5299 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5300 u32 ioasc, int_reg;
1da177e4 5301 int op_found = 0;
05a6538a 5302 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5303
5304 ENTER;
5305 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5306 res = scsi_cmd->device->hostdata;
5307
8fa728a2
JG		 5308 /* If we are currently going through reset/reload, return failed.
5309 * This will force the mid-layer to call ipr_eh_host_reset,
5310 * which will then go to sleep and wait for the reset to complete
5311 */
56d6aa33 5312 if (ioa_cfg->in_reset_reload ||
5313 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5314 return FAILED;
a92fa25c
KSS		 5315 if (!res)
5316 return FAILED;
5317
5318 /*
5319 * If we are aborting a timed out op, chances are that the timeout was caused
5320 * by a still not detected EEH error. In such cases, reading a register will
5321 * trigger the EEH recovery infrastructure.
5322 */
5323 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5324
5325 if (!ipr_is_gscsi(res))
1da177e4
LT		 5326 return FAILED;
5327
05a6538a 5328 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5329 spin_lock(&hrrq->_lock);
05a6538a 5330 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5331 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5332 ipr_cmd->done = ipr_scsi_eh_done;
5333 op_found = 1;
5334 break;
5335 }
1da177e4 5336 }
56d6aa33 5337 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5338 }
5339
5340 if (!op_found)
5341 return SUCCESS;
5342
5343 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5344 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5345 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5346 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5347 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5348 ipr_cmd->u.sdev = scsi_cmd->device;
5349
fb3ed3cb
BK		 5350 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5351 scsi_cmd->cmnd[0]);
1da177e4 5352 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5353 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5354
5355 /*
5356 * If the abort task timed out and we sent a bus reset, we will get
5357 * one the following responses to the abort
5358 */
5359 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5360 ioasc = 0;
5361 ipr_trace;
5362 }
5363
c4ee22a3 5364 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa 5365 if (!ipr_is_naca_model(res))
5366 res->needs_sync_complete = 1;
1da177e4
LT		 5367
5368 LEAVE;
203fa3fe 5369 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5370}
5371
5372/**
5373 * ipr_eh_abort - Abort a single op
5374 * @scsi_cmd: scsi command struct
5375 *
5376 * Return value:
f688f96d
BK		 5377 * 0 if scan in progress / 1 if scan is complete
5378 **/
5379static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5380{
5381 unsigned long lock_flags;
5382 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5383 int rc = 0;
5384
5385 spin_lock_irqsave(shost->host_lock, lock_flags);
5386 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5387 rc = 1;
5388 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5389 rc = 1;
5390 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5391 return rc;
5392}
5393
5394/**
5395 * ipr_eh_host_reset - Reset the host adapter
5396 * @scsi_cmd: scsi command struct
5397 *
5398 * Return value:
1da177e4
LT		 5399 * SUCCESS / FAILED
5400 **/
203fa3fe 5401static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5402{
8fa728a2
JG		 5403 unsigned long flags;
5404 int rc;
6cdb0817 5405 struct ipr_ioa_cfg *ioa_cfg;
1da177e4
LT		 5406
5407 ENTER;
1da177e4 5408
6cdb0817
BK		 5409 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5410
8fa728a2
JG		 5411 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5412 rc = ipr_cancel_op(scsi_cmd);
5413 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4 5414
6cdb0817
BK		 5415 if (rc == SUCCESS)
5416 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
1da177e4 5417 LEAVE;
8fa728a2 5418 return rc;
1da177e4
LT		 5419}
5420
5421/**
5422 * ipr_handle_other_interrupt - Handle "other" interrupts
5423 * @ioa_cfg: ioa config struct
634651fa 5424 * @int_reg: interrupt register
1da177e4
LT		 5425 *
5426 * Return value:
5427 * IRQ_NONE / IRQ_HANDLED
5428 **/
634651fa 5429static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5430 u32 int_reg)
1da177e4
LT		 5431{
5432 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5433 u32 int_mask_reg;
56d6aa33 5434
7dacb64f
WB		 5435 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5436 int_reg &= ~int_mask_reg;
5437
5438 /* If an interrupt on the adapter did not occur, ignore it.
5439 * Or in the case of SIS 64, check for a stage change interrupt.
5440 */
5441 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5442 if (ioa_cfg->sis64) {
5443 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5444 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5445 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5446
5447 /* clear stage change */
5448 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5449 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5450 list_del(&ioa_cfg->reset_cmd->queue);
5451 del_timer(&ioa_cfg->reset_cmd->timer);
5452 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5453 return IRQ_HANDLED;
5454 }
5455 }
5456
5457 return IRQ_NONE;
5458 }
1da177e4
LT		 5459
5460 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5461 /* Mask the interrupt */
5462 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 5463 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5464
5465 list_del(&ioa_cfg->reset_cmd->queue);
5466 del_timer(&ioa_cfg->reset_cmd->timer);
5467 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5468 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5469 if (ioa_cfg->clear_isr) {
5470 if (ipr_debug && printk_ratelimit())
5471 dev_err(&ioa_cfg->pdev->dev,
5472 "Spurious interrupt detected. 0x%08X\n", int_reg);
5473 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5474 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5475 return IRQ_NONE;
5476 }
1da177e4
LT		 5477 } else {
5478 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5479 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5480 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5481 dev_err(&ioa_cfg->pdev->dev,
5482 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5483 else
5484 dev_err(&ioa_cfg->pdev->dev,
5485 "Permanent IOA failure. 0x%08X\n", int_reg);
5486
5487 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5488 ioa_cfg->sdt_state = GET_DUMP;
5489
5490 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5491 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5492 }
56d6aa33 5493
1da177e4
LT		 5494 return rc;
5495}
5496
3feeb89d
WB		 5497/**
5498 * ipr_isr_eh - Interrupt service routine error handler
5499 * @ioa_cfg: ioa config struct
5500 * @msg: message to log
5501 *
5502 * Return value:
5503 * none
5504 **/
05a6538a 5505static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5506{
5507 ioa_cfg->errors_logged++;
05a6538a 5508 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5509
5510 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5511 ioa_cfg->sdt_state = GET_DUMP;
5512
5513 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5514}
5515
b53d124a 5516static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5517 struct list_head *doneq)
5518{
5519 u32 ioasc;
5520 u16 cmd_index;
5521 struct ipr_cmnd *ipr_cmd;
5522 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5523 int num_hrrq = 0;
5524
5525 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5526 if (!hrr_queue->allow_interrupts)
05a6538a 5527 return 0;
5528
5529 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5530 hrr_queue->toggle_bit) {
5531
5532 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5533 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5534 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5535
5536 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5537 cmd_index < hrr_queue->min_cmd_id)) {
5538 ipr_isr_eh(ioa_cfg,
5539 "Invalid response handle from IOA: ",
5540 cmd_index);
5541 break;
5542 }
5543
5544 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5545 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5546
5547 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5548
5549 list_move_tail(&ipr_cmd->queue, doneq);
5550
5551 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5552 hrr_queue->hrrq_curr++;
5553 } else {
5554 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5555 hrr_queue->toggle_bit ^= 1u;
5556 }
5557 num_hrrq++;
b53d124a 5558 if (budget > 0 && num_hrrq >= budget)
5559 break;
05a6538a 5560 }
b53d124a 5561
05a6538a 5562 return num_hrrq;
5563}
b53d124a 5564
5565static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5566{
5567 struct ipr_ioa_cfg *ioa_cfg;
5568 struct ipr_hrr_queue *hrrq;
5569 struct ipr_cmnd *ipr_cmd, *temp;
5570 unsigned long hrrq_flags;
5571 int completed_ops;
5572 LIST_HEAD(doneq);
5573
5574 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5575 ioa_cfg = hrrq->ioa_cfg;
5576
5577 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5578 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5579
5580 if (completed_ops < budget)
5581 blk_iopoll_complete(iop);
5582 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5583
5584 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5585 list_del(&ipr_cmd->queue);
5586 del_timer(&ipr_cmd->timer);
5587 ipr_cmd->fast_done(ipr_cmd);
5588 }
5589
5590 return completed_ops;
5591}
5592
1da177e4
LT		 5593/**
5594 * ipr_isr - Interrupt service routine
5595 * @irq: irq number
5596 * @devp: pointer to ioa config struct
1da177e4
LT		 5597 *
5598 * Return value:
5599 * IRQ_NONE / IRQ_HANDLED
5600 **/
7d12e780 5601static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5602{
05a6538a 5603 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5604 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5605 unsigned long hrrq_flags = 0;
7dacb64f 5606 u32 int_reg = 0;
3feeb89d 5607 int num_hrrq = 0;
7dacb64f 5608 int irq_none = 0;
172cd6e1 5609 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5610 irqreturn_t rc = IRQ_NONE;
172cd6e1 5611 LIST_HEAD(doneq);
1da177e4 5612
56d6aa33 5613 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5614 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5615 if (!hrrq->allow_interrupts) {
5616 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5617 return IRQ_NONE;
5618 }
5619
1da177e4 5620 while (1) {
b53d124a 5621 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5622 rc = IRQ_HANDLED;
1da177e4 5623
b53d124a 5624 if (!ioa_cfg->clear_isr)
5625 break;
7dd21308 5626
1da177e4 5627 /* Clear the PCI interrupt */
a5442ba4 5628 num_hrrq = 0;
3feeb89d 5629 do {
b53d124a 5630 writel(IPR_PCII_HRRQ_UPDATED,
5631 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5632 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5633 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5634 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5635
7dacb64f
WB		 5636 } else if (rc == IRQ_NONE && irq_none == 0) {
5637 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5638 irq_none++;
a5442ba4
WB		 5639 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5640 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5641 ipr_isr_eh(ioa_cfg,
5642 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5643 rc = IRQ_HANDLED;
b53d124a 5644 break;
1da177e4
LT		 5645 } else
5646 break;
5647 }
5648
5649 if (unlikely(rc == IRQ_NONE))
634651fa 5650 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5651
56d6aa33 5652 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5653 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5654 list_del(&ipr_cmd->queue);
5655 del_timer(&ipr_cmd->timer);
5656 ipr_cmd->fast_done(ipr_cmd);
5657 }
05a6538a 5658 return rc;
5659}
5660
5661/**
5662 * ipr_isr_mhrrq - Interrupt service routine
5663 * @irq: irq number
5664 * @devp: pointer to ioa config struct
5665 *
5666 * Return value:
5667 * IRQ_NONE / IRQ_HANDLED
5668 **/
5669static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5670{
5671 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5672 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5673 unsigned long hrrq_flags = 0;
05a6538a 5674 struct ipr_cmnd *ipr_cmd, *temp;
5675 irqreturn_t rc = IRQ_NONE;
5676 LIST_HEAD(doneq);
172cd6e1 5677
56d6aa33 5678 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5679
5680 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5681 if (!hrrq->allow_interrupts) {
5682 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5683 return IRQ_NONE;
5684 }
5685
89f8b33c 5686 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5687 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5688 hrrq->toggle_bit) {
5689 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5690 blk_iopoll_sched(&hrrq->iopoll);
5691 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5692 return IRQ_HANDLED;
5693 }
5694 } else {
5695 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5696 hrrq->toggle_bit)
05a6538a 5697
b53d124a 5698 if (ipr_process_hrrq(hrrq, -1, &doneq))
5699 rc = IRQ_HANDLED;
5700 }
05a6538a 5701
56d6aa33 5702 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5703
5704 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5705 list_del(&ipr_cmd->queue);
5706 del_timer(&ipr_cmd->timer);
5707 ipr_cmd->fast_done(ipr_cmd);
5708 }
1da177e4
LT		 5709 return rc;
5710}
5711
a32c055f
WB		 5712/**
5713 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5714 * @ioa_cfg: ioa config struct
5715 * @ipr_cmd: ipr command struct
5716 *
5717 * Return value:
5718 * 0 on success / -1 on failure
5719 **/
5720static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5721 struct ipr_cmnd *ipr_cmd)
5722{
5723 int i, nseg;
5724 struct scatterlist *sg;
5725 u32 length;
5726 u32 ioadl_flags = 0;
5727 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5728 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5729 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5730
5731 length = scsi_bufflen(scsi_cmd);
5732 if (!length)
5733 return 0;
5734
5735 nseg = scsi_dma_map(scsi_cmd);
5736 if (nseg < 0) {
51f52a47 5737 if (printk_ratelimit())
d73341bf 5738 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5739 return -1;
5740 }
5741
5742 ipr_cmd->dma_use_sg = nseg;
5743
438b0331 5744 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5745 ioarcb->ioadl_len =
5746 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5747
a32c055f
WB		 5748 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5749 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5750 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5751 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5752 ioadl_flags = IPR_IOADL_FLAGS_READ;
5753
5754 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5755 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5756 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5757 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5758 }
5759
5760 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5761 return 0;
5762}
5763
1da177e4
LT		 5764/**
5765 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5766 * @ioa_cfg: ioa config struct
5767 * @ipr_cmd: ipr command struct
5768 *
5769 * Return value:
5770 * 0 on success / -1 on failure
5771 **/
5772static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5773 struct ipr_cmnd *ipr_cmd)
5774{
63015bc9
FT		 5775 int i, nseg;
5776 struct scatterlist *sg;
1da177e4
LT		 5777 u32 length;
5778 u32 ioadl_flags = 0;
5779 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5780 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5781 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5782
63015bc9
FT		 5783 length = scsi_bufflen(scsi_cmd);
5784 if (!length)
1da177e4
LT		 5785 return 0;
5786
63015bc9
FT		 5787 nseg = scsi_dma_map(scsi_cmd);
5788 if (nseg < 0) {
d73341bf 5789 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5790 return -1;
5791 }
51b1c7e1 5792
63015bc9
FT		 5793 ipr_cmd->dma_use_sg = nseg;
5794
5795 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5796 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5797 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5798 ioarcb->data_transfer_length = cpu_to_be32(length);
5799 ioarcb->ioadl_len =
63015bc9
FT		 5800 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5801 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5802 ioadl_flags = IPR_IOADL_FLAGS_READ;
5803 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5804 ioarcb->read_ioadl_len =
5805 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5806 }
1da177e4 5807
a32c055f
WB		 5808 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5809 ioadl = ioarcb->u.add_data.u.ioadl;
5810 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5811 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5812 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5813 }
1da177e4 5814
63015bc9
FT		 5815 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5816 ioadl[i].flags_and_data_len =
5817 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5818 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5819 }
5820
63015bc9
FT		 5821 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5822 return 0;
1da177e4
LT		 5823}
5824
1da177e4
LT		 5825/**
5826 * ipr_erp_done - Process completion of ERP for a device
5827 * @ipr_cmd: ipr command struct
5828 *
5829 * This function copies the sense buffer into the scsi_cmd
5830 * struct and pushes the scsi_done function.
5831 *
5832 * Return value:
5833 * nothing
5834 **/
5835static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5836{
5837 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5838 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5839 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5840
5841 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5842 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5843 scmd_printk(KERN_ERR, scsi_cmd,
5844 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5845 } else {
5846 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5847 SCSI_SENSE_BUFFERSIZE);
5848 }
5849
5850 if (res) {
ee0a90fa 5851 if (!ipr_is_naca_model(res))
5852 res->needs_sync_complete = 1;
1da177e4
LT		 5853 res->in_erp = 0;
5854 }
63015bc9 5855 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5856 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5857 scsi_cmd->scsi_done(scsi_cmd);
5858}
5859
5860/**
5861 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5862 * @ipr_cmd: ipr command struct
5863 *
5864 * Return value:
5865 * none
5866 **/
5867static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5868{
51b1c7e1 5869 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5870 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5871 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5872
5873 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5874 ioarcb->data_transfer_length = 0;
1da177e4 5875 ioarcb->read_data_transfer_length = 0;
a32c055f 5876 ioarcb->ioadl_len = 0;
1da177e4 5877 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5878 ioasa->hdr.ioasc = 0;
5879 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5880
5881 if (ipr_cmd->ioa_cfg->sis64)
5882 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5883 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5884 else {
5885 ioarcb->write_ioadl_addr =
5886 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5887 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5888 }
1da177e4
LT		 5889}
5890
5891/**
5892 * ipr_erp_request_sense - Send request sense to a device
5893 * @ipr_cmd: ipr command struct
5894 *
5895 * This function sends a request sense to a device as a result
5896 * of a check condition.
5897 *
5898 * Return value:
5899 * nothing
5900 **/
5901static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5902{
5903 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5904 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5905
5906 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5907 ipr_erp_done(ipr_cmd);
5908 return;
5909 }
5910
5911 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5912
5913 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5914 cmd_pkt->cdb[0] = REQUEST_SENSE;
5915 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5916 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5917 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5918 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5919
a32c055f
WB		 5920 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5921 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5922
5923 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5924 IPR_REQUEST_SENSE_TIMEOUT * 2);
5925}
5926
5927/**
5928 * ipr_erp_cancel_all - Send cancel all to a device
5929 * @ipr_cmd: ipr command struct
5930 *
5931 * This function sends a cancel all to a device to clear the
5932 * queue. If we are running TCQ on the device, QERR is set to 1,
5933 * which means all outstanding ops have been dropped on the floor.
5934 * Cancel all will return them to us.
5935 *
5936 * Return value:
5937 * nothing
5938 **/
5939static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5940{
5941 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5942 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5943 struct ipr_cmd_pkt *cmd_pkt;
5944
5945 res->in_erp = 1;
5946
5947 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5948
17ea0126 5949 if (!scsi_cmd->device->simple_tags) {
1da177e4
LT		 5950 ipr_erp_request_sense(ipr_cmd);
5951 return;
5952 }
5953
5954 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5955 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5956 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5957
5958 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5959 IPR_CANCEL_ALL_TIMEOUT);
5960}
5961
5962/**
5963 * ipr_dump_ioasa - Dump contents of IOASA
5964 * @ioa_cfg: ioa config struct
5965 * @ipr_cmd: ipr command struct
fe964d0a 5966 * @res: resource entry struct
1da177e4
LT		 5967 *
5968 * This function is invoked by the interrupt handler when ops
5969 * fail. It will log the IOASA if appropriate. Only called
5970 * for GPDD ops.
5971 *
5972 * Return value:
5973 * none
5974 **/
5975static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5976 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5977{
5978 int i;
5979 u16 data_len;
b0692dd4 5980 u32 ioasc, fd_ioasc;
96d21f00 5981 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5982 __be32 *ioasa_data = (__be32 *)ioasa;
5983 int error_index;
5984
96d21f00
WB		 5985 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5986 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5987
5988 if (0 == ioasc)
5989 return;
5990
5991 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5992 return;
5993
b0692dd4
BK		 5994 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5995 error_index = ipr_get_error(fd_ioasc);
5996 else
5997 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5998
5999 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6000 /* Don't log an error if the IOA already logged one */
96d21f00 6001 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 6002 return;
6003
cc9bd5d4
BK		 6004 if (!ipr_is_gscsi(res))
6005 return;
6006
1da177e4
LT		 6007 if (ipr_error_table[error_index].log_ioasa == 0)
6008 return;
6009 }
6010
fe964d0a 6011 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 6012
96d21f00
WB		 6013 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6014 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6015 data_len = sizeof(struct ipr_ioasa64);
6016 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 6017 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 6018
6019 ipr_err("IOASA Dump:\n");
6020
6021 for (i = 0; i < data_len / 4; i += 4) {
6022 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6023 be32_to_cpu(ioasa_data[i]),
6024 be32_to_cpu(ioasa_data[i+1]),
6025 be32_to_cpu(ioasa_data[i+2]),
6026 be32_to_cpu(ioasa_data[i+3]));
6027 }
6028}
6029
6030/**
6031 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6032 * @ioasa: IOASA
6033 * @sense_buf: sense data buffer
6034 *
6035 * Return value:
6036 * none
6037 **/
6038static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6039{
6040 u32 failing_lba;
6041 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6042 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 6043 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6044 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 6045
6046 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6047
6048 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6049 return;
6050
6051 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6052
6053 if (ipr_is_vset_device(res) &&
6054 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6055 ioasa->u.vset.failing_lba_hi != 0) {
6056 sense_buf[0] = 0x72;
6057 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6058 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6059 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6060
6061 sense_buf[7] = 12;
6062 sense_buf[8] = 0;
6063 sense_buf[9] = 0x0A;
6064 sense_buf[10] = 0x80;
6065
6066 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6067
6068 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6069 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6070 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6071 sense_buf[15] = failing_lba & 0x000000ff;
6072
6073 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6074
6075 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6076 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6077 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6078 sense_buf[19] = failing_lba & 0x000000ff;
6079 } else {
6080 sense_buf[0] = 0x70;
6081 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6082 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6083 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6084
6085 /* Illegal request */
6086 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 6087 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 6088 sense_buf[7] = 10; /* additional length */
6089
6090 /* IOARCB was in error */
6091 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6092 sense_buf[15] = 0xC0;
6093 else /* Parameter data was invalid */
6094 sense_buf[15] = 0x80;
6095
6096 sense_buf[16] =
6097 ((IPR_FIELD_POINTER_MASK &
96d21f00 6098 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 6099 sense_buf[17] =
6100 (IPR_FIELD_POINTER_MASK &
96d21f00 6101 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 6102 } else {
6103 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6104 if (ipr_is_vset_device(res))
6105 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6106 else
6107 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6108
6109 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6110 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6111 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6112 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6113 sense_buf[6] = failing_lba & 0x000000ff;
6114 }
6115
6116 sense_buf[7] = 6; /* additional length */
6117 }
6118 }
6119}
6120
ee0a90fa 6121/**
6122 * ipr_get_autosense - Copy autosense data to sense buffer
6123 * @ipr_cmd: ipr command struct
6124 *
6125 * This function copies the autosense buffer to the buffer
6126 * in the scsi_cmd, if there is autosense available.
6127 *
6128 * Return value:
6129 * 1 if autosense was available / 0 if not
6130 **/
6131static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6132{
96d21f00
WB		 6133 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6134 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 6135
96d21f00 6136 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa 6137 return 0;
6138
96d21f00
WB		 6139 if (ipr_cmd->ioa_cfg->sis64)
6140 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6141 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6142 SCSI_SENSE_BUFFERSIZE));
6143 else
6144 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6145 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6146 SCSI_SENSE_BUFFERSIZE));
ee0a90fa 6147 return 1;
6148}
6149
1da177e4
LT		 6150/**
6151 * ipr_erp_start - Process an error response for a SCSI op
6152 * @ioa_cfg: ioa config struct
6153 * @ipr_cmd: ipr command struct
6154 *
6155 * This function determines whether or not to initiate ERP
6156 * on the affected device.
6157 *
6158 * Return value:
6159 * nothing
6160 **/
6161static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6162 struct ipr_cmnd *ipr_cmd)
6163{
6164 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6165 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6166 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6167 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6168
6169 if (!res) {
6170 ipr_scsi_eh_done(ipr_cmd);
6171 return;
6172 }
6173
8a048994 6174 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6175 ipr_gen_sense(ipr_cmd);
6176
cc9bd5d4
BK		 6177 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6178
8a048994 6179 switch (masked_ioasc) {
1da177e4 6180 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa 6181 if (ipr_is_naca_model(res))
6182 scsi_cmd->result |= (DID_ABORT << 16);
6183 else
6184 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6185 break;
6186 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6187 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6188 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6189 break;
6190 case IPR_IOASC_HW_SEL_TIMEOUT:
6191 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa 6192 if (!ipr_is_naca_model(res))
6193 res->needs_sync_complete = 1;
1da177e4
LT		 6194 break;
6195 case IPR_IOASC_SYNC_REQUIRED:
6196 if (!res->in_erp)
6197 res->needs_sync_complete = 1;
6198 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6199 break;
6200 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6201 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6202 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6203 break;
6204 case IPR_IOASC_BUS_WAS_RESET:
6205 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6206 /*
6207 * Report the bus reset and ask for a retry. The device
6208 * will give CC/UA the next command.
6209 */
6210 if (!res->resetting_device)
6211 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6212 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6213 if (!ipr_is_naca_model(res))
6214 res->needs_sync_complete = 1;
1da177e4
LT		 6215 break;
6216 case IPR_IOASC_HW_DEV_BUS_STATUS:
6217 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6218 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa 6219 if (!ipr_get_autosense(ipr_cmd)) {
6220 if (!ipr_is_naca_model(res)) {
6221 ipr_erp_cancel_all(ipr_cmd);
6222 return;
6223 }
6224 }
1da177e4 6225 }
ee0a90fa 6226 if (!ipr_is_naca_model(res))
6227 res->needs_sync_complete = 1;
1da177e4
LT		 6228 break;
6229 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6230 break;
f8ee25d7
WX		 6231 case IPR_IOASC_IR_NON_OPTIMIZED:
6232 if (res->raw_mode) {
6233 res->raw_mode = 0;
6234 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6235 } else
6236 scsi_cmd->result |= (DID_ERROR << 16);
6237 break;
1da177e4 6238 default:
5b7304fb
BK		 6239 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6240 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6241 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6242 res->needs_sync_complete = 1;
6243 break;
6244 }
6245
63015bc9 6246 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6247 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6248 scsi_cmd->scsi_done(scsi_cmd);
6249}
6250
6251/**
6252 * ipr_scsi_done - mid-layer done function
6253 * @ipr_cmd: ipr command struct
6254 *
6255 * This function is invoked by the interrupt handler for
6256 * ops generated by the SCSI mid-layer
6257 *
6258 * Return value:
6259 * none
6260 **/
6261static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6262{
6263 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6264 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6265 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
36b8e180 6266 unsigned long lock_flags;
1da177e4 6267
96d21f00 6268 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6269
6270 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6271 scsi_dma_unmap(scsi_cmd);
6272
36b8e180 6273 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
05a6538a 6274 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6275 scsi_cmd->scsi_done(scsi_cmd);
36b8e180 6276 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
172cd6e1 6277 } else {
36b8e180
BK		 6278 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6279 spin_lock(&ipr_cmd->hrrq->_lock);
1da177e4 6280 ipr_erp_start(ioa_cfg, ipr_cmd);
36b8e180
BK		 6281 spin_unlock(&ipr_cmd->hrrq->_lock);
6282 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
172cd6e1 6283 }
1da177e4
LT		 6284}
6285
1da177e4
LT		 6286/**
6287 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6288 * @shost: scsi host struct
1da177e4 6289 * @scsi_cmd: scsi command struct
1da177e4
LT		 6290 *
6291 * This function queues a request generated by the mid-layer.
6292 *
6293 * Return value:
6294 * 0 on success
6295 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6296 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6297 **/
00bfef2c
BK		 6298static int ipr_queuecommand(struct Scsi_Host *shost,
6299 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6300{
6301 struct ipr_ioa_cfg *ioa_cfg;
6302 struct ipr_resource_entry *res;
6303 struct ipr_ioarcb *ioarcb;
6304 struct ipr_cmnd *ipr_cmd;
56d6aa33 6305 unsigned long hrrq_flags, lock_flags;
d12f1576 6306 int rc;
05a6538a 6307 struct ipr_hrr_queue *hrrq;
6308 int hrrq_id;
1da177e4 6309
00bfef2c
BK		 6310 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6311
1da177e4 6312 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6313 res = scsi_cmd->device->hostdata;
56d6aa33 6314
6315 if (ipr_is_gata(res) && res->sata_port) {
6316 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6317 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6318 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6319 return rc;
6320 }
6321
05a6538a 6322 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6323 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6324
56d6aa33 6325 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6326 /*
6327 * We are currently blocking all devices due to a host reset
6328 * We have told the host to stop giving us new requests, but
6329 * ERP ops don't count. FIXME
6330 */
bfae7820 6331 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6332 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6333 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6334 }
1da177e4
LT		 6335
6336 /*
6337 * FIXME - Create scsi_set_host_offline interface
6338 * and the ioa_is_dead check can be removed
6339 */
bfae7820 6340 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6341 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6342 goto err_nodev;
1da177e4
LT		 6343 }
6344
05a6538a 6345 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6346 if (ipr_cmd == NULL) {
56d6aa33 6347 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6348 return SCSI_MLQUEUE_HOST_BUSY;
6349 }
56d6aa33 6350 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6351
172cd6e1 6352 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6353 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6354
6355 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6356 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6357 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4
LT		 6358
6359 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6360 if (scsi_cmd->underflow == 0)
6361 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6362
1da177e4 6363 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
0b1f8d44
WX		 6364 if (ipr_is_gscsi(res) && res->reset_occurred) {
6365 res->reset_occurred = 0;
ab6c10b1 6366 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6367 }
1da177e4 6368 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6369 if (scsi_cmd->flags & SCMD_TAGGED)
6370 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6371 else
6372 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6373 }
6374
6375 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6376 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6377 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6378 }
f8ee25d7
WX		 6379 if (res->raw_mode && ipr_is_af_dasd_device(res))
6380 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
1da177e4 6381
d12f1576
DC		 6382 if (ioa_cfg->sis64)
6383 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6384 else
6385 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6386
56d6aa33 6387 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6388 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6389 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6390 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6391 if (!rc)
6392 scsi_dma_unmap(scsi_cmd);
a5fb407e 6393 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6394 }
6395
56d6aa33 6396 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6397 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6398 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6399 scsi_dma_unmap(scsi_cmd);
6400 goto err_nodev;
6401 }
6402
6403 ioarcb->res_handle = res->res_handle;
6404 if (res->needs_sync_complete) {
6405 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6406 res->needs_sync_complete = 0;
6407 }
05a6538a 6408 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6409 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6410 ipr_send_command(ipr_cmd);
56d6aa33 6411 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6412 return 0;
1da177e4 6413
00bfef2c 6414err_nodev:
56d6aa33 6415 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6416 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6417 scsi_cmd->result = (DID_NO_CONNECT << 16);
6418 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6419 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6420 return 0;
6421}
f281233d 6422
35a39691
BK		 6423/**
6424 * ipr_ioctl - IOCTL handler
6425 * @sdev: scsi device struct
6426 * @cmd: IOCTL cmd
6427 * @arg: IOCTL arg
6428 *
6429 * Return value:
6430 * 0 on success / other on failure
6431 **/
bd705f2d 6432static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6433{
6434 struct ipr_resource_entry *res;
6435
6436 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6437 if (res && ipr_is_gata(res)) {
6438 if (cmd == HDIO_GET_IDENTITY)
6439 return -ENOTTY;
94be9a58 6440 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6441 }
35a39691
BK		 6442
6443 return -EINVAL;
6444}
6445
1da177e4
LT		 6446/**
6447 * ipr_info - Get information about the card/driver
6448 * @scsi_host: scsi host struct
6449 *
6450 * Return value:
6451 * pointer to buffer with description string
6452 **/
203fa3fe 6453static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6454{
6455 static char buffer[512];
6456 struct ipr_ioa_cfg *ioa_cfg;
6457 unsigned long lock_flags = 0;
6458
6459 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6460
6461 spin_lock_irqsave(host->host_lock, lock_flags);
6462 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6463 spin_unlock_irqrestore(host->host_lock, lock_flags);
6464
6465 return buffer;
6466}
6467
6468static struct scsi_host_template driver_template = {
6469 .module = THIS_MODULE,
6470 .name = "IPR",
6471 .info = ipr_ioa_info,
35a39691 6472 .ioctl = ipr_ioctl,
1da177e4
LT		 6473 .queuecommand = ipr_queuecommand,
6474 .eh_abort_handler = ipr_eh_abort,
6475 .eh_device_reset_handler = ipr_eh_dev_reset,
6476 .eh_host_reset_handler = ipr_eh_host_reset,
6477 .slave_alloc = ipr_slave_alloc,
6478 .slave_configure = ipr_slave_configure,
6479 .slave_destroy = ipr_slave_destroy,
f688f96d 6480 .scan_finished = ipr_scan_finished,
35a39691
BK		 6481 .target_alloc = ipr_target_alloc,
6482 .target_destroy = ipr_target_destroy,
1da177e4 6483 .change_queue_depth = ipr_change_queue_depth,
1da177e4
LT		 6484 .bios_param = ipr_biosparam,
6485 .can_queue = IPR_MAX_COMMANDS,
6486 .this_id = -1,
6487 .sg_tablesize = IPR_MAX_SGLIST,
6488 .max_sectors = IPR_IOA_MAX_SECTORS,
6489 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6490 .use_clustering = ENABLE_CLUSTERING,
6491 .shost_attrs = ipr_ioa_attrs,
6492 .sdev_attrs = ipr_dev_attrs,
54b2b50c 6493 .proc_name = IPR_NAME,
2ecb204d 6494 .use_blk_tags = 1,
1da177e4
LT		 6495};
6496
35a39691
BK		 6497/**
6498 * ipr_ata_phy_reset - libata phy_reset handler
6499 * @ap: ata port to reset
6500 *
6501 **/
6502static void ipr_ata_phy_reset(struct ata_port *ap)
6503{
6504 unsigned long flags;
6505 struct ipr_sata_port *sata_port = ap->private_data;
6506 struct ipr_resource_entry *res = sata_port->res;
6507 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6508 int rc;
6509
6510 ENTER;
6511 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6512 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6513 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6514 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6515 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6516 }
6517
56d6aa33 6518 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6519 goto out_unlock;
6520
6521 rc = ipr_device_reset(ioa_cfg, res);
6522
6523 if (rc) {
3e4ec344 6524 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6525 goto out_unlock;
6526 }
6527
3e7ebdfa
WB		 6528 ap->link.device[0].class = res->ata_class;
6529 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6530 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6531
6532out_unlock:
6533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6534 LEAVE;
6535}
6536
6537/**
6538 * ipr_ata_post_internal - Cleanup after an internal command
6539 * @qc: ATA queued command
6540 *
6541 * Return value:
6542 * none
6543 **/
6544static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6545{
6546 struct ipr_sata_port *sata_port = qc->ap->private_data;
6547 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6548 struct ipr_cmnd *ipr_cmd;
05a6538a 6549 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6550 unsigned long flags;
6551
6552 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6553 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6554 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6555 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6556 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6557 }
6558
05a6538a 6559 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6560 spin_lock(&hrrq->_lock);
05a6538a 6561 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6562 if (ipr_cmd->qc == qc) {
6563 ipr_device_reset(ioa_cfg, sata_port->res);
6564 break;
6565 }
35a39691 6566 }
56d6aa33 6567 spin_unlock(&hrrq->_lock);
35a39691
BK		 6568 }
6569 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6570}
6571
35a39691
BK		 6572/**
6573 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6574 * @regs: destination
6575 * @tf: source ATA taskfile
6576 *
6577 * Return value:
6578 * none
6579 **/
6580static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6581 struct ata_taskfile *tf)
6582{
6583 regs->feature = tf->feature;
6584 regs->nsect = tf->nsect;
6585 regs->lbal = tf->lbal;
6586 regs->lbam = tf->lbam;
6587 regs->lbah = tf->lbah;
6588 regs->device = tf->device;
6589 regs->command = tf->command;
6590 regs->hob_feature = tf->hob_feature;
6591 regs->hob_nsect = tf->hob_nsect;
6592 regs->hob_lbal = tf->hob_lbal;
6593 regs->hob_lbam = tf->hob_lbam;
6594 regs->hob_lbah = tf->hob_lbah;
6595 regs->ctl = tf->ctl;
6596}
6597
6598/**
6599 * ipr_sata_done - done function for SATA commands
6600 * @ipr_cmd: ipr command struct
6601 *
6602 * This function is invoked by the interrupt handler for
6603 * ops generated by the SCSI mid-layer to SATA devices
6604 *
6605 * Return value:
6606 * none
6607 **/
6608static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6609{
6610 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6611 struct ata_queued_cmd *qc = ipr_cmd->qc;
6612 struct ipr_sata_port *sata_port = qc->ap->private_data;
6613 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6614 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6615
56d6aa33 6616 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6617 if (ipr_cmd->ioa_cfg->sis64)
6618 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6619 sizeof(struct ipr_ioasa_gata));
6620 else
6621 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6622 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6623 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6624
96d21f00 6625 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6626 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6627
6628 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6629 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6630 else
96d21f00 6631 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6632 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6633 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6634 ata_qc_complete(qc);
6635}
6636
a32c055f
WB		 6637/**
6638 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6639 * @ipr_cmd: ipr command struct
6640 * @qc: ATA queued command
6641 *
6642 **/
6643static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6644 struct ata_queued_cmd *qc)
6645{
6646 u32 ioadl_flags = 0;
6647 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6648 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6649 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6650 int len = qc->nbytes;
6651 struct scatterlist *sg;
6652 unsigned int si;
6653 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6654
6655 if (len == 0)
6656 return;
6657
6658 if (qc->dma_dir == DMA_TO_DEVICE) {
6659 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6660 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6661 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6662 ioadl_flags = IPR_IOADL_FLAGS_READ;
6663
6664 ioarcb->data_transfer_length = cpu_to_be32(len);
6665 ioarcb->ioadl_len =
6666 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6667 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6668 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6669
6670 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6671 ioadl64->flags = cpu_to_be32(ioadl_flags);
6672 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6673 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6674
6675 last_ioadl64 = ioadl64;
6676 ioadl64++;
6677 }
6678
6679 if (likely(last_ioadl64))
6680 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6681}
6682
35a39691
BK		 6683/**
6684 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6685 * @ipr_cmd: ipr command struct
6686 * @qc: ATA queued command
6687 *
6688 **/
6689static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6690 struct ata_queued_cmd *qc)
6691{
6692 u32 ioadl_flags = 0;
6693 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6694 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6695 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6696 int len = qc->nbytes;
35a39691 6697 struct scatterlist *sg;
ff2aeb1e 6698 unsigned int si;
35a39691
BK		 6699
6700 if (len == 0)
6701 return;
6702
6703 if (qc->dma_dir == DMA_TO_DEVICE) {
6704 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6705 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6706 ioarcb->data_transfer_length = cpu_to_be32(len);
6707 ioarcb->ioadl_len =
35a39691
BK		 6708 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6709 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6710 ioadl_flags = IPR_IOADL_FLAGS_READ;
6711 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6712 ioarcb->read_ioadl_len =
6713 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6714 }
6715
ff2aeb1e 6716 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6717 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6718 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6719
6720 last_ioadl = ioadl;
6721 ioadl++;
35a39691 6722 }
3be6cbd7
JG		 6723
6724 if (likely(last_ioadl))
6725 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6726}
6727
56d6aa33 6728/**
6729 * ipr_qc_defer - Get a free ipr_cmd
6730 * @qc: queued command
6731 *
6732 * Return value:
6733 * 0 if success
6734 **/
6735static int ipr_qc_defer(struct ata_queued_cmd *qc)
6736{
6737 struct ata_port *ap = qc->ap;
6738 struct ipr_sata_port *sata_port = ap->private_data;
6739 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6740 struct ipr_cmnd *ipr_cmd;
6741 struct ipr_hrr_queue *hrrq;
6742 int hrrq_id;
6743
6744 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6745 hrrq = &ioa_cfg->hrrq[hrrq_id];
6746
6747 qc->lldd_task = NULL;
6748 spin_lock(&hrrq->_lock);
6749 if (unlikely(hrrq->ioa_is_dead)) {
6750 spin_unlock(&hrrq->_lock);
6751 return 0;
6752 }
6753
6754 if (unlikely(!hrrq->allow_cmds)) {
6755 spin_unlock(&hrrq->_lock);
6756 return ATA_DEFER_LINK;
6757 }
6758
6759 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6760 if (ipr_cmd == NULL) {
6761 spin_unlock(&hrrq->_lock);
6762 return ATA_DEFER_LINK;
6763 }
6764
6765 qc->lldd_task = ipr_cmd;
6766 spin_unlock(&hrrq->_lock);
6767 return 0;
6768}
6769
35a39691
BK		 6770/**
6771 * ipr_qc_issue - Issue a SATA qc to a device
6772 * @qc: queued command
6773 *
6774 * Return value:
6775 * 0 if success
6776 **/
6777static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6778{
6779 struct ata_port *ap = qc->ap;
6780 struct ipr_sata_port *sata_port = ap->private_data;
6781 struct ipr_resource_entry *res = sata_port->res;
6782 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6783 struct ipr_cmnd *ipr_cmd;
6784 struct ipr_ioarcb *ioarcb;
6785 struct ipr_ioarcb_ata_regs *regs;
6786
56d6aa33 6787 if (qc->lldd_task == NULL)
6788 ipr_qc_defer(qc);
6789
6790 ipr_cmd = qc->lldd_task;
6791 if (ipr_cmd == NULL)
0feeed82 6792 return AC_ERR_SYSTEM;
35a39691 6793
56d6aa33 6794 qc->lldd_task = NULL;
6795 spin_lock(&ipr_cmd->hrrq->_lock);
6796 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6797 ipr_cmd->hrrq->ioa_is_dead)) {
6798 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6799 spin_unlock(&ipr_cmd->hrrq->_lock);
6800 return AC_ERR_SYSTEM;
6801 }
6802
05a6538a 6803 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6804 ioarcb = &ipr_cmd->ioarcb;
35a39691 6805
a32c055f
WB		 6806 if (ioa_cfg->sis64) {
6807 regs = &ipr_cmd->i.ata_ioadl.regs;
6808 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6809 } else
6810 regs = &ioarcb->u.add_data.u.regs;
6811
6812 memset(regs, 0, sizeof(*regs));
6813 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6814
56d6aa33 6815 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6816 ipr_cmd->qc = qc;
6817 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6818 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6819 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6820 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6821 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6822 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6823
a32c055f
WB		 6824 if (ioa_cfg->sis64)
6825 ipr_build_ata_ioadl64(ipr_cmd, qc);
6826 else
6827 ipr_build_ata_ioadl(ipr_cmd, qc);
6828
35a39691
BK		 6829 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6830 ipr_copy_sata_tf(regs, &qc->tf);
6831 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6832 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6833
6834 switch (qc->tf.protocol) {
6835 case ATA_PROT_NODATA:
6836 case ATA_PROT_PIO:
6837 break;
6838
6839 case ATA_PROT_DMA:
6840 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6841 break;
6842
0dc36888
TH		 6843 case ATAPI_PROT_PIO:
6844 case ATAPI_PROT_NODATA:
35a39691
BK		 6845 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6846 break;
6847
0dc36888 6848 case ATAPI_PROT_DMA:
35a39691
BK		 6849 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6850 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6851 break;
6852
6853 default:
6854 WARN_ON(1);
56d6aa33 6855 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6856 return AC_ERR_INVALID;
35a39691
BK		 6857 }
6858
a32c055f 6859 ipr_send_command(ipr_cmd);
56d6aa33 6860 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6861
35a39691
BK		 6862 return 0;
6863}
6864
4c9bf4e7
TH		 6865/**
6866 * ipr_qc_fill_rtf - Read result TF
6867 * @qc: ATA queued command
6868 *
6869 * Return value:
6870 * true
6871 **/
6872static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6873{
6874 struct ipr_sata_port *sata_port = qc->ap->private_data;
6875 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6876 struct ata_taskfile *tf = &qc->result_tf;
6877
6878 tf->feature = g->error;
6879 tf->nsect = g->nsect;
6880 tf->lbal = g->lbal;
6881 tf->lbam = g->lbam;
6882 tf->lbah = g->lbah;
6883 tf->device = g->device;
6884 tf->command = g->status;
6885 tf->hob_nsect = g->hob_nsect;
6886 tf->hob_lbal = g->hob_lbal;
6887 tf->hob_lbam = g->hob_lbam;
6888 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6889
6890 return true;
6891}
6892
35a39691 6893static struct ata_port_operations ipr_sata_ops = {
35a39691 6894 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6895 .hardreset = ipr_sata_reset,
35a39691 6896 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6897 .qc_prep = ata_noop_qc_prep,
56d6aa33 6898 .qc_defer = ipr_qc_defer,
35a39691 6899 .qc_issue = ipr_qc_issue,
4c9bf4e7 6900 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6901 .port_start = ata_sas_port_start,
6902 .port_stop = ata_sas_port_stop
6903};
6904
6905static struct ata_port_info sata_port_info = {
5067c046
SL		 6906 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6907 ATA_FLAG_SAS_HOST,
0f2e0330
SS		 6908 .pio_mask = ATA_PIO4_ONLY,
6909 .mwdma_mask = ATA_MWDMA2,
6910 .udma_mask = ATA_UDMA6,
35a39691
BK		 6911 .port_ops = &ipr_sata_ops
6912};
6913
1da177e4
LT		 6914#ifdef CONFIG_PPC_PSERIES
6915static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6916 PVR_NORTHSTAR,
6917 PVR_PULSAR,
6918 PVR_POWER4,
6919 PVR_ICESTAR,
6920 PVR_SSTAR,
6921 PVR_POWER4p,
6922 PVR_630,
6923 PVR_630p
1da177e4
LT		 6924};
6925
6926/**
6927 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6928 * @ioa_cfg: ioa cfg struct
6929 *
6930 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6931 * certain pSeries hardware. This function determines if the given
6932 * adapter is in one of these confgurations or not.
6933 *
6934 * Return value:
6935 * 1 if adapter is not supported / 0 if adapter is supported
6936 **/
6937static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6938{
1da177e4
LT		 6939 int i;
6940
44c10138 6941 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6942 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6943 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6944 return 1;
1da177e4
LT		 6945 }
6946 }
6947 return 0;
6948}
6949#else
6950#define ipr_invalid_adapter(ioa_cfg) 0
6951#endif
6952
6953/**
6954 * ipr_ioa_bringdown_done - IOA bring down completion.
6955 * @ipr_cmd: ipr command struct
6956 *
6957 * This function processes the completion of an adapter bring down.
6958 * It wakes any reset sleepers.
6959 *
6960 * Return value:
6961 * IPR_RC_JOB_RETURN
6962 **/
6963static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6964{
6965 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6966 int i;
1da177e4
LT		 6967
6968 ENTER;
bfae7820
BK		 6969 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6970 ipr_trace;
6971 spin_unlock_irq(ioa_cfg->host->host_lock);
6972 scsi_unblock_requests(ioa_cfg->host);
6973 spin_lock_irq(ioa_cfg->host->host_lock);
6974 }
6975
1da177e4
LT		 6976 ioa_cfg->in_reset_reload = 0;
6977 ioa_cfg->reset_retries = 0;
96b04db9 6978 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6979 spin_lock(&ioa_cfg->hrrq[i]._lock);
6980 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6981 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6982 }
6983 wmb();
6984
05a6538a 6985 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6986 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 6987 LEAVE;
6988
6989 return IPR_RC_JOB_RETURN;
6990}
6991
6992/**
6993 * ipr_ioa_reset_done - IOA reset completion.
6994 * @ipr_cmd: ipr command struct
6995 *
6996 * This function processes the completion of an adapter reset.
6997 * It schedules any necessary mid-layer add/removes and
6998 * wakes any reset sleepers.
6999 *
7000 * Return value:
7001 * IPR_RC_JOB_RETURN
7002 **/
7003static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7004{
7005 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7006 struct ipr_resource_entry *res;
7007 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 7008 int i = 0, j;
1da177e4
LT		 7009
7010 ENTER;
7011 ioa_cfg->in_reset_reload = 0;
56d6aa33 7012 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7013 spin_lock(&ioa_cfg->hrrq[j]._lock);
7014 ioa_cfg->hrrq[j].allow_cmds = 1;
7015 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7016 }
7017 wmb();
1da177e4 7018 ioa_cfg->reset_cmd = NULL;
3d1d0da6 7019 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 7020
7021 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
f688f96d 7022 if (res->add_to_ml || res->del_from_ml) {
1da177e4
LT		 7023 ipr_trace;
7024 break;
7025 }
7026 }
7027 schedule_work(&ioa_cfg->work_q);
7028
7029 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7030 list_del(&hostrcb->queue);
7031 if (i++ < IPR_NUM_LOG_HCAMS)
7032 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7033 else
7034 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7035 }
7036
6bb04170 7037 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 7038 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7039
7040 ioa_cfg->reset_retries = 0;
05a6538a 7041 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 7042 wake_up_all(&ioa_cfg->reset_wait_q);
7043
30237853 7044 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 7045 scsi_unblock_requests(ioa_cfg->host);
30237853 7046 spin_lock(ioa_cfg->host->host_lock);
1da177e4 7047
56d6aa33 7048 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 7049 scsi_block_requests(ioa_cfg->host);
7050
f688f96d 7051 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 7052 LEAVE;
7053 return IPR_RC_JOB_RETURN;
7054}
7055
7056/**
7057 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7058 * @supported_dev: supported device struct
7059 * @vpids: vendor product id struct
7060 *
7061 * Return value:
7062 * none
7063 **/
7064static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7065 struct ipr_std_inq_vpids *vpids)
7066{
7067 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7068 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7069 supported_dev->num_records = 1;
7070 supported_dev->data_length =
7071 cpu_to_be16(sizeof(struct ipr_supported_device));
7072 supported_dev->reserved = 0;
7073}
7074
7075/**
7076 * ipr_set_supported_devs - Send Set Supported Devices for a device
7077 * @ipr_cmd: ipr command struct
7078 *
a32c055f 7079 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 7080 *
7081 * Return value:
7082 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7083 **/
7084static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7085{
7086 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7087 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 7088 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7089 struct ipr_resource_entry *res = ipr_cmd->u.res;
7090
7091 ipr_cmd->job_step = ipr_ioa_reset_done;
7092
7093 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 7094 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 7095 continue;
7096
7097 ipr_cmd->u.res = res;
3e7ebdfa 7098 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 7099
7100 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7101 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7102 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7103
7104 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 7105 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 7106 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7107 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7108
a32c055f
WB		 7109 ipr_init_ioadl(ipr_cmd,
7110 ioa_cfg->vpd_cbs_dma +
7111 offsetof(struct ipr_misc_cbs, supp_dev),
7112 sizeof(struct ipr_supported_device),
7113 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7114
7115 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7116 IPR_SET_SUP_DEVICE_TIMEOUT);
7117
3e7ebdfa
WB		 7118 if (!ioa_cfg->sis64)
7119 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 7120 LEAVE;
1da177e4
LT		 7121 return IPR_RC_JOB_RETURN;
7122 }
7123
05a6538a 7124 LEAVE;
1da177e4
LT		 7125 return IPR_RC_JOB_CONTINUE;
7126}
7127
7128/**
7129 * ipr_get_mode_page - Locate specified mode page
7130 * @mode_pages: mode page buffer
7131 * @page_code: page code to find
7132 * @len: minimum required length for mode page
7133 *
7134 * Return value:
7135 * pointer to mode page / NULL on failure
7136 **/
7137static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7138 u32 page_code, u32 len)
7139{
7140 struct ipr_mode_page_hdr *mode_hdr;
7141 u32 page_length;
7142 u32 length;
7143
7144 if (!mode_pages || (mode_pages->hdr.length == 0))
7145 return NULL;
7146
7147 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7148 mode_hdr = (struct ipr_mode_page_hdr *)
7149 (mode_pages->data + mode_pages->hdr.block_desc_len);
7150
7151 while (length) {
7152 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7153 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7154 return mode_hdr;
7155 break;
7156 } else {
7157 page_length = (sizeof(struct ipr_mode_page_hdr) +
7158 mode_hdr->page_length);
7159 length -= page_length;
7160 mode_hdr = (struct ipr_mode_page_hdr *)
7161 ((unsigned long)mode_hdr + page_length);
7162 }
7163 }
7164 return NULL;
7165}
7166
7167/**
7168 * ipr_check_term_power - Check for term power errors
7169 * @ioa_cfg: ioa config struct
7170 * @mode_pages: IOAFP mode pages buffer
7171 *
7172 * Check the IOAFP's mode page 28 for term power errors
7173 *
7174 * Return value:
7175 * nothing
7176 **/
7177static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7178 struct ipr_mode_pages *mode_pages)
7179{
7180 int i;
7181 int entry_length;
7182 struct ipr_dev_bus_entry *bus;
7183 struct ipr_mode_page28 *mode_page;
7184
7185 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7186 sizeof(struct ipr_mode_page28));
7187
7188 entry_length = mode_page->entry_length;
7189
7190 bus = mode_page->bus;
7191
7192 for (i = 0; i < mode_page->num_entries; i++) {
7193 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7194 dev_err(&ioa_cfg->pdev->dev,
7195 "Term power is absent on scsi bus %d\n",
7196 bus->res_addr.bus);
7197 }
7198
7199 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7200 }
7201}
7202
7203/**
7204 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7205 * @ioa_cfg: ioa config struct
7206 *
7207 * Looks through the config table checking for SES devices. If
7208 * the SES device is in the SES table indicating a maximum SCSI
7209 * bus speed, the speed is limited for the bus.
7210 *
7211 * Return value:
7212 * none
7213 **/
7214static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7215{
7216 u32 max_xfer_rate;
7217 int i;
7218
7219 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7220 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7221 ioa_cfg->bus_attr[i].bus_width);
7222
7223 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7224 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7225 }
7226}
7227
7228/**
7229 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7230 * @ioa_cfg: ioa config struct
7231 * @mode_pages: mode page 28 buffer
7232 *
7233 * Updates mode page 28 based on driver configuration
7234 *
7235 * Return value:
7236 * none
7237 **/
7238static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7239 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7240{
7241 int i, entry_length;
7242 struct ipr_dev_bus_entry *bus;
7243 struct ipr_bus_attributes *bus_attr;
7244 struct ipr_mode_page28 *mode_page;
7245
7246 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7247 sizeof(struct ipr_mode_page28));
7248
7249 entry_length = mode_page->entry_length;
7250
7251 /* Loop for each device bus entry */
7252 for (i = 0, bus = mode_page->bus;
7253 i < mode_page->num_entries;
7254 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7255 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7256 dev_err(&ioa_cfg->pdev->dev,
7257 "Invalid resource address reported: 0x%08X\n",
7258 IPR_GET_PHYS_LOC(bus->res_addr));
7259 continue;
7260 }
7261
7262 bus_attr = &ioa_cfg->bus_attr[i];
7263 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7264 bus->bus_width = bus_attr->bus_width;
7265 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7266 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7267 if (bus_attr->qas_enabled)
7268 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7269 else
7270 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7271 }
7272}
7273
7274/**
7275 * ipr_build_mode_select - Build a mode select command
7276 * @ipr_cmd: ipr command struct
7277 * @res_handle: resource handle to send command to
7278 * @parm: Byte 2 of Mode Sense command
7279 * @dma_addr: DMA buffer address
7280 * @xfer_len: data transfer length
7281 *
7282 * Return value:
7283 * none
7284 **/
7285static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7286 __be32 res_handle, u8 parm,
7287 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7288{
1da177e4
LT		 7289 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7290
7291 ioarcb->res_handle = res_handle;
7292 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7293 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7294 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7295 ioarcb->cmd_pkt.cdb[1] = parm;
7296 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7297
a32c055f 7298 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7299}
7300
7301/**
7302 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7303 * @ipr_cmd: ipr command struct
7304 *
7305 * This function sets up the SCSI bus attributes and sends
7306 * a Mode Select for Page 28 to activate them.
7307 *
7308 * Return value:
7309 * IPR_RC_JOB_RETURN
7310 **/
7311static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7312{
7313 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7314 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7315 int length;
7316
7317 ENTER;
4733804c
BK		 7318 ipr_scsi_bus_speed_limit(ioa_cfg);
7319 ipr_check_term_power(ioa_cfg, mode_pages);
7320 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7321 length = mode_pages->hdr.length + 1;
7322 mode_pages->hdr.length = 0;
1da177e4
LT		 7323
7324 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7325 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7326 length);
7327
f72919ec
WB		 7328 ipr_cmd->job_step = ipr_set_supported_devs;
7329 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7330 struct ipr_resource_entry, queue);
1da177e4
LT		 7331 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7332
7333 LEAVE;
7334 return IPR_RC_JOB_RETURN;
7335}
7336
7337/**
7338 * ipr_build_mode_sense - Builds a mode sense command
7339 * @ipr_cmd: ipr command struct
7340 * @res: resource entry struct
7341 * @parm: Byte 2 of mode sense command
7342 * @dma_addr: DMA address of mode sense buffer
7343 * @xfer_len: Size of DMA buffer
7344 *
7345 * Return value:
7346 * none
7347 **/
7348static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7349 __be32 res_handle,
a32c055f 7350 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7351{
1da177e4
LT		 7352 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7353
7354 ioarcb->res_handle = res_handle;
7355 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7356 ioarcb->cmd_pkt.cdb[2] = parm;
7357 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7358 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7359
a32c055f 7360 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7361}
7362
dfed823e 7363/**
7364 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7365 * @ipr_cmd: ipr command struct
7366 *
7367 * This function handles the failure of an IOA bringup command.
7368 *
7369 * Return value:
7370 * IPR_RC_JOB_RETURN
7371 **/
7372static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7373{
7374 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7375 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 7376
7377 dev_err(&ioa_cfg->pdev->dev,
7378 "0x%02X failed with IOASC: 0x%08X\n",
7379 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7380
7381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7382 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e 7383 return IPR_RC_JOB_RETURN;
7384}
7385
7386/**
7387 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7388 * @ipr_cmd: ipr command struct
7389 *
7390 * This function handles the failure of a Mode Sense to the IOAFP.
7391 * Some adapters do not handle all mode pages.
7392 *
7393 * Return value:
7394 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7395 **/
7396static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7397{
f72919ec 7398 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7399 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 7400
7401 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7402 ipr_cmd->job_step = ipr_set_supported_devs;
7403 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7404 struct ipr_resource_entry, queue);
dfed823e 7405 return IPR_RC_JOB_CONTINUE;
7406 }
7407
7408 return ipr_reset_cmd_failed(ipr_cmd);
7409}
7410
1da177e4
LT		 7411/**
7412 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7413 * @ipr_cmd: ipr command struct
7414 *
7415 * This function send a Page 28 mode sense to the IOA to
7416 * retrieve SCSI bus attributes.
7417 *
7418 * Return value:
7419 * IPR_RC_JOB_RETURN
7420 **/
7421static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7422{
7423 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7424
7425 ENTER;
7426 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7427 0x28, ioa_cfg->vpd_cbs_dma +
7428 offsetof(struct ipr_misc_cbs, mode_pages),
7429 sizeof(struct ipr_mode_pages));
7430
7431 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7432 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7433
7434 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7435
7436 LEAVE;
7437 return IPR_RC_JOB_RETURN;
7438}
7439
ac09c349
BK		 7440/**
7441 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7442 * @ipr_cmd: ipr command struct
7443 *
7444 * This function enables dual IOA RAID support if possible.
7445 *
7446 * Return value:
7447 * IPR_RC_JOB_RETURN
7448 **/
7449static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7450{
7451 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7452 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7453 struct ipr_mode_page24 *mode_page;
7454 int length;
7455
7456 ENTER;
7457 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7458 sizeof(struct ipr_mode_page24));
7459
7460 if (mode_page)
7461 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7462
7463 length = mode_pages->hdr.length + 1;
7464 mode_pages->hdr.length = 0;
7465
7466 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7467 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7468 length);
7469
7470 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7471 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7472
7473 LEAVE;
7474 return IPR_RC_JOB_RETURN;
7475}
7476
7477/**
7478 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7479 * @ipr_cmd: ipr command struct
7480 *
7481 * This function handles the failure of a Mode Sense to the IOAFP.
7482 * Some adapters do not handle all mode pages.
7483 *
7484 * Return value:
7485 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7486 **/
7487static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7488{
96d21f00 7489 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7490
7491 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7492 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7493 return IPR_RC_JOB_CONTINUE;
7494 }
7495
7496 return ipr_reset_cmd_failed(ipr_cmd);
7497}
7498
7499/**
7500 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7501 * @ipr_cmd: ipr command struct
7502 *
7503 * This function send a mode sense to the IOA to retrieve
7504 * the IOA Advanced Function Control mode page.
7505 *
7506 * Return value:
7507 * IPR_RC_JOB_RETURN
7508 **/
7509static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7510{
7511 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7512
7513 ENTER;
7514 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7515 0x24, ioa_cfg->vpd_cbs_dma +
7516 offsetof(struct ipr_misc_cbs, mode_pages),
7517 sizeof(struct ipr_mode_pages));
7518
7519 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7520 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7521
7522 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7523
7524 LEAVE;
7525 return IPR_RC_JOB_RETURN;
7526}
7527
1da177e4
LT		 7528/**
7529 * ipr_init_res_table - Initialize the resource table
7530 * @ipr_cmd: ipr command struct
7531 *
7532 * This function looks through the existing resource table, comparing
7533 * it with the config table. This function will take care of old/new
7534 * devices and schedule adding/removing them from the mid-layer
7535 * as appropriate.
7536 *
7537 * Return value:
7538 * IPR_RC_JOB_CONTINUE
7539 **/
7540static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7541{
7542 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7543 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7544 struct ipr_config_table_entry_wrapper cfgtew;
7545 int entries, found, flag, i;
1da177e4
LT		 7546 LIST_HEAD(old_res);
7547
7548 ENTER;
3e7ebdfa
WB		 7549 if (ioa_cfg->sis64)
7550 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7551 else
7552 flag = ioa_cfg->u.cfg_table->hdr.flags;
7553
7554 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7555 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7556
7557 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7558 list_move_tail(&res->queue, &old_res);
7559
3e7ebdfa 7560 if (ioa_cfg->sis64)
438b0331 7561 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7562 else
7563 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7564
7565 for (i = 0; i < entries; i++) {
7566 if (ioa_cfg->sis64)
7567 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7568 else
7569 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7570 found = 0;
7571
7572 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7573 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7574 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7575 found = 1;
7576 break;
7577 }
7578 }
7579
7580 if (!found) {
7581 if (list_empty(&ioa_cfg->free_res_q)) {
7582 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7583 break;
7584 }
7585
7586 found = 1;
7587 res = list_entry(ioa_cfg->free_res_q.next,
7588 struct ipr_resource_entry, queue);
7589 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7590 ipr_init_res_entry(res, &cfgtew);
1da177e4 7591 res->add_to_ml = 1;
56115598
WB		 7592 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7593 res->sdev->allow_restart = 1;
1da177e4
LT		 7594
7595 if (found)
3e7ebdfa 7596 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7597 }
7598
7599 list_for_each_entry_safe(res, temp, &old_res, queue) {
7600 if (res->sdev) {
7601 res->del_from_ml = 1;
3e7ebdfa 7602 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7603 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7604 }
7605 }
7606
3e7ebdfa
WB		 7607 list_for_each_entry_safe(res, temp, &old_res, queue) {
7608 ipr_clear_res_target(res);
7609 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7610 }
7611
ac09c349
BK		 7612 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7613 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7614 else
7615 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7616
7617 LEAVE;
7618 return IPR_RC_JOB_CONTINUE;
7619}
7620
7621/**
7622 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7623 * @ipr_cmd: ipr command struct
7624 *
7625 * This function sends a Query IOA Configuration command
7626 * to the adapter to retrieve the IOA configuration table.
7627 *
7628 * Return value:
7629 * IPR_RC_JOB_RETURN
7630 **/
7631static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7632{
7633 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7634 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7635 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7636 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7637
7638 ENTER;
ac09c349
BK		 7639 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7640 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7641 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7642 ucode_vpd->major_release, ucode_vpd->card_type,
7643 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7644 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7645 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7646
7647 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7648 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7649 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7650 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7651
3e7ebdfa 7652 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7653 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7654
7655 ipr_cmd->job_step = ipr_init_res_table;
7656
7657 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7658
7659 LEAVE;
7660 return IPR_RC_JOB_RETURN;
7661}
7662
7663/**
7664 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7665 * @ipr_cmd: ipr command struct
7666 *
7667 * This utility function sends an inquiry to the adapter.
7668 *
7669 * Return value:
7670 * none
7671 **/
7672static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7673 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7674{
7675 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7676
7677 ENTER;
7678 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7679 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7680
7681 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7682 ioarcb->cmd_pkt.cdb[1] = flags;
7683 ioarcb->cmd_pkt.cdb[2] = page;
7684 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7685
a32c055f 7686 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7687
7688 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7689 LEAVE;
7690}
7691
62275040 7692/**
7693 * ipr_inquiry_page_supported - Is the given inquiry page supported
7694 * @page0: inquiry page 0 buffer
7695 * @page: page code.
7696 *
7697 * This function determines if the specified inquiry page is supported.
7698 *
7699 * Return value:
7700 * 1 if page is supported / 0 if not
7701 **/
7702static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7703{
7704 int i;
7705
7706 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7707 if (page0->page[i] == page)
7708 return 1;
7709
7710 return 0;
7711}
7712
ac09c349
BK		 7713/**
7714 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7715 * @ipr_cmd: ipr command struct
7716 *
7717 * This function sends a Page 0xD0 inquiry to the adapter
7718 * to retrieve adapter capabilities.
7719 *
7720 * Return value:
7721 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7722 **/
7723static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7724{
7725 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7726 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7727 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7728
7729 ENTER;
7730 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7731 memset(cap, 0, sizeof(*cap));
7732
7733 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7734 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7735 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7736 sizeof(struct ipr_inquiry_cap));
7737 return IPR_RC_JOB_RETURN;
7738 }
7739
7740 LEAVE;
7741 return IPR_RC_JOB_CONTINUE;
7742}
7743
1da177e4
LT		 7744/**
7745 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7746 * @ipr_cmd: ipr command struct
7747 *
7748 * This function sends a Page 3 inquiry to the adapter
7749 * to retrieve software VPD information.
7750 *
7751 * Return value:
7752 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7753 **/
7754static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040 7755{
7756 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040 7757
7758 ENTER;
7759
ac09c349 7760 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040 7761
7762 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7763 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7764 sizeof(struct ipr_inquiry_page3));
7765
7766 LEAVE;
7767 return IPR_RC_JOB_RETURN;
7768}
7769
7770/**
7771 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7772 * @ipr_cmd: ipr command struct
7773 *
7774 * This function sends a Page 0 inquiry to the adapter
7775 * to retrieve supported inquiry pages.
7776 *
7777 * Return value:
7778 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7779 **/
7780static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7781{
7782 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7783 char type[5];
7784
7785 ENTER;
7786
7787 /* Grab the type out of the VPD and store it away */
7788 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7789 type[4] = '\0';
7790 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7791
f688f96d
BK		 7792 if (ipr_invalid_adapter(ioa_cfg)) {
7793 dev_err(&ioa_cfg->pdev->dev,
7794 "Adapter not supported in this hardware configuration.\n");
7795
7796 if (!ipr_testmode) {
7797 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7798 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7799 list_add_tail(&ipr_cmd->queue,
7800 &ioa_cfg->hrrq->hrrq_free_q);
7801 return IPR_RC_JOB_RETURN;
7802 }
7803 }
7804
62275040 7805 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7806
62275040 7807 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7808 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7809 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7810
7811 LEAVE;
7812 return IPR_RC_JOB_RETURN;
7813}
7814
7815/**
7816 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7817 * @ipr_cmd: ipr command struct
7818 *
7819 * This function sends a standard inquiry to the adapter.
7820 *
7821 * Return value:
7822 * IPR_RC_JOB_RETURN
7823 **/
7824static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7825{
7826 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7827
7828 ENTER;
62275040 7829 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7830
7831 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7832 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7833 sizeof(struct ipr_ioa_vpd));
7834
7835 LEAVE;
7836 return IPR_RC_JOB_RETURN;
7837}
7838
7839/**
214777ba 7840 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7841 * @ipr_cmd: ipr command struct
7842 *
7843 * This function send an Identify Host Request Response Queue
7844 * command to establish the HRRQ with the adapter.
7845 *
7846 * Return value:
7847 * IPR_RC_JOB_RETURN
7848 **/
214777ba 7849static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7850{
7851 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7852 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7853 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7854
7855 ENTER;
05a6538a 7856 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7857 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7858
56d6aa33 7859 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7860 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7861
05a6538a 7862 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7863 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7864
05a6538a 7865 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7866 if (ioa_cfg->sis64)
7867 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7868
05a6538a 7869 if (ioa_cfg->nvectors == 1)
7870 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7871 else
7872 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7873
7874 ioarcb->cmd_pkt.cdb[2] =
7875 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7876 ioarcb->cmd_pkt.cdb[3] =
7877 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7878 ioarcb->cmd_pkt.cdb[4] =
7879 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7880 ioarcb->cmd_pkt.cdb[5] =
7881 ((u64) hrrq->host_rrq_dma) & 0xff;
7882 ioarcb->cmd_pkt.cdb[7] =
7883 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7884 ioarcb->cmd_pkt.cdb[8] =
7885 (sizeof(u32) * hrrq->size) & 0xff;
7886
7887 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7888 ioarcb->cmd_pkt.cdb[9] =
7889 ioa_cfg->identify_hrrq_index;
1da177e4 7890
05a6538a 7891 if (ioa_cfg->sis64) {
7892 ioarcb->cmd_pkt.cdb[10] =
7893 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7894 ioarcb->cmd_pkt.cdb[11] =
7895 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7896 ioarcb->cmd_pkt.cdb[12] =
7897 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7898 ioarcb->cmd_pkt.cdb[13] =
7899 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
7900 }
7901
7902 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7903 ioarcb->cmd_pkt.cdb[14] =
7904 ioa_cfg->identify_hrrq_index;
05a6538a 7905
7906 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7907 IPR_INTERNAL_TIMEOUT);
7908
56d6aa33 7909 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
7910 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 7911
7912 LEAVE;
7913 return IPR_RC_JOB_RETURN;
05a6538a 7914 }
7915
1da177e4 7916 LEAVE;
05a6538a 7917 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7918}
7919
7920/**
7921 * ipr_reset_timer_done - Adapter reset timer function
7922 * @ipr_cmd: ipr command struct
7923 *
7924 * Description: This function is used in adapter reset processing
7925 * for timing events. If the reset_cmd pointer in the IOA
7926 * config struct is not this adapter's we are doing nested
7927 * resets and fail_all_ops will take care of freeing the
7928 * command block.
7929 *
7930 * Return value:
7931 * none
7932 **/
7933static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7934{
7935 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7936 unsigned long lock_flags = 0;
7937
7938 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7939
7940 if (ioa_cfg->reset_cmd == ipr_cmd) {
7941 list_del(&ipr_cmd->queue);
7942 ipr_cmd->done(ipr_cmd);
7943 }
7944
7945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7946}
7947
7948/**
7949 * ipr_reset_start_timer - Start a timer for adapter reset job
7950 * @ipr_cmd: ipr command struct
7951 * @timeout: timeout value
7952 *
7953 * Description: This function is used in adapter reset processing
7954 * for timing events. If the reset_cmd pointer in the IOA
7955 * config struct is not this adapter's we are doing nested
7956 * resets and fail_all_ops will take care of freeing the
7957 * command block.
7958 *
7959 * Return value:
7960 * none
7961 **/
7962static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7963 unsigned long timeout)
7964{
05a6538a 7965
7966 ENTER;
7967 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7968 ipr_cmd->done = ipr_reset_ioa_job;
7969
7970 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7971 ipr_cmd->timer.expires = jiffies + timeout;
7972 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7973 add_timer(&ipr_cmd->timer);
7974}
7975
7976/**
7977 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7978 * @ioa_cfg: ioa cfg struct
7979 *
7980 * Return value:
7981 * nothing
7982 **/
7983static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7984{
05a6538a 7985 struct ipr_hrr_queue *hrrq;
1da177e4 7986
05a6538a 7987 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 7988 spin_lock(&hrrq->_lock);
05a6538a 7989 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
7990
7991 /* Initialize Host RRQ pointers */
7992 hrrq->hrrq_start = hrrq->host_rrq;
7993 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
7994 hrrq->hrrq_curr = hrrq->hrrq_start;
7995 hrrq->toggle_bit = 1;
56d6aa33 7996 spin_unlock(&hrrq->_lock);
05a6538a 7997 }
56d6aa33 7998 wmb();
05a6538a 7999
56d6aa33 8000 ioa_cfg->identify_hrrq_index = 0;
8001 if (ioa_cfg->hrrq_num == 1)
8002 atomic_set(&ioa_cfg->hrrq_index, 0);
8003 else
8004 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 8005
8006 /* Zero out config table */
3e7ebdfa 8007 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 8008}
8009
214777ba
WB		 8010/**
8011 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8012 * @ipr_cmd: ipr command struct
8013 *
8014 * Return value:
8015 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8016 **/
8017static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8018{
8019 unsigned long stage, stage_time;
8020 u32 feedback;
8021 volatile u32 int_reg;
8022 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8023 u64 maskval = 0;
8024
8025 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8026 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8027 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8028
8029 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8030
8031 /* sanity check the stage_time value */
438b0331
WB		 8032 if (stage_time == 0)
8033 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8034 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 8035 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8036 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8037 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8038
8039 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8040 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8041 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8042 stage_time = ioa_cfg->transop_timeout;
8043 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8044 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 8045 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8046 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8047 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8048 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8049 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8050 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8051 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8052 return IPR_RC_JOB_CONTINUE;
8053 }
214777ba
WB		 8054 }
8055
8056 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8057 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8058 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8059 ipr_cmd->done = ipr_reset_ioa_job;
8060 add_timer(&ipr_cmd->timer);
05a6538a 8061
8062 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 8063
8064 return IPR_RC_JOB_RETURN;
8065}
8066
1da177e4
LT		 8067/**
8068 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8069 * @ipr_cmd: ipr command struct
8070 *
8071 * This function reinitializes some control blocks and
8072 * enables destructive diagnostics on the adapter.
8073 *
8074 * Return value:
8075 * IPR_RC_JOB_RETURN
8076 **/
8077static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8078{
8079 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8080 volatile u32 int_reg;
7be96900 8081 volatile u64 maskval;
56d6aa33 8082 int i;
1da177e4
LT		 8083
8084 ENTER;
214777ba 8085 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 8086 ipr_init_ioa_mem(ioa_cfg);
8087
56d6aa33 8088 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8089 spin_lock(&ioa_cfg->hrrq[i]._lock);
8090 ioa_cfg->hrrq[i].allow_interrupts = 1;
8091 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8092 }
8093 wmb();
8701f185
WB		 8094 if (ioa_cfg->sis64) {
8095 /* Set the adapter to the correct endian mode. */
8096 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8097 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8098 }
8099
7be96900 8100 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 8101
8102 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8103 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 8104 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 8105 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8106 return IPR_RC_JOB_CONTINUE;
8107 }
8108
8109 /* Enable destructive diagnostics on IOA */
214777ba
WB		 8110 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8111
7be96900
WB		 8112 if (ioa_cfg->sis64) {
8113 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8114 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8115 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8116 } else
8117 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 8118
1da177e4
LT		 8119 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8120
8121 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8122
214777ba
WB		 8123 if (ioa_cfg->sis64) {
8124 ipr_cmd->job_step = ipr_reset_next_stage;
8125 return IPR_RC_JOB_CONTINUE;
8126 }
8127
1da177e4 8128 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 8129 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 8130 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8131 ipr_cmd->done = ipr_reset_ioa_job;
8132 add_timer(&ipr_cmd->timer);
05a6538a 8133 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8134
8135 LEAVE;
8136 return IPR_RC_JOB_RETURN;
8137}
8138
8139/**
8140 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8141 * @ipr_cmd: ipr command struct
8142 *
8143 * This function is invoked when an adapter dump has run out
8144 * of processing time.
8145 *
8146 * Return value:
8147 * IPR_RC_JOB_CONTINUE
8148 **/
8149static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8150{
8151 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8152
8153 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 8154 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8155 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 8156 ioa_cfg->sdt_state = ABORT_DUMP;
8157
4c647e90 8158 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 8159 ipr_cmd->job_step = ipr_reset_alert;
8160
8161 return IPR_RC_JOB_CONTINUE;
8162}
8163
8164/**
8165 * ipr_unit_check_no_data - Log a unit check/no data error log
8166 * @ioa_cfg: ioa config struct
8167 *
8168 * Logs an error indicating the adapter unit checked, but for some
8169 * reason, we were unable to fetch the unit check buffer.
8170 *
8171 * Return value:
8172 * nothing
8173 **/
8174static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8175{
8176 ioa_cfg->errors_logged++;
8177 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8178}
8179
8180/**
8181 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8182 * @ioa_cfg: ioa config struct
8183 *
8184 * Fetches the unit check buffer from the adapter by clocking the data
8185 * through the mailbox register.
8186 *
8187 * Return value:
8188 * nothing
8189 **/
8190static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8191{
8192 unsigned long mailbox;
8193 struct ipr_hostrcb *hostrcb;
8194 struct ipr_uc_sdt sdt;
8195 int rc, length;
65f56475 8196 u32 ioasc;
1da177e4
LT		 8197
8198 mailbox = readl(ioa_cfg->ioa_mailbox);
8199
dcbad00e 8200 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8201 ipr_unit_check_no_data(ioa_cfg);
8202 return;
8203 }
8204
8205 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8206 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8207 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8208
dcbad00e
WB		 8209 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8210 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8211 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8212 ipr_unit_check_no_data(ioa_cfg);
8213 return;
8214 }
8215
8216 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8217 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8218 length = be32_to_cpu(sdt.entry[0].end_token);
8219 else
8220 length = (be32_to_cpu(sdt.entry[0].end_token) -
8221 be32_to_cpu(sdt.entry[0].start_token)) &
8222 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8223
8224 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8225 struct ipr_hostrcb, queue);
8226 list_del(&hostrcb->queue);
8227 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8228
8229 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8230 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8231 (__be32 *)&hostrcb->hcam,
8232 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8233
65f56475 8234 if (!rc) {
1da177e4 8235 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8236 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8237 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8238 ioa_cfg->sdt_state == GET_DUMP)
8239 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8240 } else
1da177e4
LT		 8241 ipr_unit_check_no_data(ioa_cfg);
8242
8243 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8244}
8245
110def85
WB		 8246/**
8247 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8248 * @ipr_cmd: ipr command struct
8249 *
8250 * Description: This function will call to get the unit check buffer.
8251 *
8252 * Return value:
8253 * IPR_RC_JOB_RETURN
8254 **/
8255static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8256{
8257 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8258
8259 ENTER;
8260 ioa_cfg->ioa_unit_checked = 0;
8261 ipr_get_unit_check_buffer(ioa_cfg);
8262 ipr_cmd->job_step = ipr_reset_alert;
8263 ipr_reset_start_timer(ipr_cmd, 0);
8264
8265 LEAVE;
8266 return IPR_RC_JOB_RETURN;
8267}
8268
1da177e4
LT		 8269/**
8270 * ipr_reset_restore_cfg_space - Restore PCI config space.
8271 * @ipr_cmd: ipr command struct
8272 *
8273 * Description: This function restores the saved PCI config space of
8274 * the adapter, fails all outstanding ops back to the callers, and
8275 * fetches the dump/unit check if applicable to this reset.
8276 *
8277 * Return value:
8278 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8279 **/
8280static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8281{
8282 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8283 u32 int_reg;
1da177e4
LT		 8284
8285 ENTER;
99c965dd 8286 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8287 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8288
8289 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8290 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8291 return IPR_RC_JOB_CONTINUE;
8292 }
8293
8294 ipr_fail_all_ops(ioa_cfg);
8295
8701f185
WB		 8296 if (ioa_cfg->sis64) {
8297 /* Set the adapter to the correct endian mode. */
8298 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8299 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8300 }
8301
1da177e4 8302 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8303 if (ioa_cfg->sis64) {
8304 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8305 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8306 return IPR_RC_JOB_RETURN;
8307 } else {
8308 ioa_cfg->ioa_unit_checked = 0;
8309 ipr_get_unit_check_buffer(ioa_cfg);
8310 ipr_cmd->job_step = ipr_reset_alert;
8311 ipr_reset_start_timer(ipr_cmd, 0);
8312 return IPR_RC_JOB_RETURN;
8313 }
1da177e4
LT		 8314 }
8315
8316 if (ioa_cfg->in_ioa_bringdown) {
8317 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8318 } else {
8319 ipr_cmd->job_step = ipr_reset_enable_ioa;
8320
8321 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 8322 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 8323 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 8324 if (ioa_cfg->sis64)
8325 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8326 else
8327 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 8328 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8329 schedule_work(&ioa_cfg->work_q);
8330 return IPR_RC_JOB_RETURN;
8331 }
8332 }
8333
438b0331 8334 LEAVE;
1da177e4
LT		 8335 return IPR_RC_JOB_CONTINUE;
8336}
8337
e619e1a7
BK		 8338/**
8339 * ipr_reset_bist_done - BIST has completed on the adapter.
8340 * @ipr_cmd: ipr command struct
8341 *
8342 * Description: Unblock config space and resume the reset process.
8343 *
8344 * Return value:
8345 * IPR_RC_JOB_CONTINUE
8346 **/
8347static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8348{
fb51ccbf
JK		 8349 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8350
e619e1a7 8351 ENTER;
fb51ccbf
JK		 8352 if (ioa_cfg->cfg_locked)
8353 pci_cfg_access_unlock(ioa_cfg->pdev);
8354 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8355 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8356 LEAVE;
8357 return IPR_RC_JOB_CONTINUE;
8358}
8359
1da177e4
LT		 8360/**
8361 * ipr_reset_start_bist - Run BIST on the adapter.
8362 * @ipr_cmd: ipr command struct
8363 *
8364 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8365 *
8366 * Return value:
8367 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8368 **/
8369static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8370{
8371 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8372 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8373
8374 ENTER;
cb237ef7
WB		 8375 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8376 writel(IPR_UPROCI_SIS64_START_BIST,
8377 ioa_cfg->regs.set_uproc_interrupt_reg32);
8378 else
8379 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8380
8381 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8382 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8383 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8384 rc = IPR_RC_JOB_RETURN;
cb237ef7 8385 } else {
fb51ccbf
JK		 8386 if (ioa_cfg->cfg_locked)
8387 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8388 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8389 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8390 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8391 }
8392
8393 LEAVE;
8394 return rc;
8395}
8396
463fc696
BK		 8397/**
8398 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8399 * @ipr_cmd: ipr command struct
8400 *
8401 * Description: This clears PCI reset to the adapter and delays two seconds.
8402 *
8403 * Return value:
8404 * IPR_RC_JOB_RETURN
8405 **/
8406static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8407{
8408 ENTER;
463fc696
BK		 8409 ipr_cmd->job_step = ipr_reset_bist_done;
8410 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8411 LEAVE;
8412 return IPR_RC_JOB_RETURN;
8413}
8414
2796ca5e
BK		 8415/**
8416 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8417 * @work: work struct
8418 *
8419 * Description: This pulses warm reset to a slot.
8420 *
8421 **/
8422static void ipr_reset_reset_work(struct work_struct *work)
8423{
8424 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8425 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8426 struct pci_dev *pdev = ioa_cfg->pdev;
8427 unsigned long lock_flags = 0;
8428
8429 ENTER;
8430 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8431 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8432 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8433
8434 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8435 if (ioa_cfg->reset_cmd == ipr_cmd)
8436 ipr_reset_ioa_job(ipr_cmd);
8437 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8438 LEAVE;
8439}
8440
463fc696
BK		 8441/**
8442 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8443 * @ipr_cmd: ipr command struct
8444 *
8445 * Description: This asserts PCI reset to the adapter.
8446 *
8447 * Return value:
8448 * IPR_RC_JOB_RETURN
8449 **/
8450static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8451{
8452 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
463fc696
BK		 8453
8454 ENTER;
2796ca5e
BK		 8455 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8456 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
463fc696 8457 ipr_cmd->job_step = ipr_reset_slot_reset_done;
463fc696
BK		 8458 LEAVE;
8459 return IPR_RC_JOB_RETURN;
8460}
8461
fb51ccbf
JK		 8462/**
8463 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8464 * @ipr_cmd: ipr command struct
8465 *
8466 * Description: This attempts to block config access to the IOA.
8467 *
8468 * Return value:
8469 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8470 **/
8471static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8472{
8473 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8474 int rc = IPR_RC_JOB_CONTINUE;
8475
8476 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8477 ioa_cfg->cfg_locked = 1;
8478 ipr_cmd->job_step = ioa_cfg->reset;
8479 } else {
8480 if (ipr_cmd->u.time_left) {
8481 rc = IPR_RC_JOB_RETURN;
8482 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8483 ipr_reset_start_timer(ipr_cmd,
8484 IPR_CHECK_FOR_RESET_TIMEOUT);
8485 } else {
8486 ipr_cmd->job_step = ioa_cfg->reset;
8487 dev_err(&ioa_cfg->pdev->dev,
8488 "Timed out waiting to lock config access. Resetting anyway.\n");
8489 }
8490 }
8491
8492 return rc;
8493}
8494
8495/**
8496 * ipr_reset_block_config_access - Block config access to the IOA
8497 * @ipr_cmd: ipr command struct
8498 *
8499 * Description: This attempts to block config access to the IOA
8500 *
8501 * Return value:
8502 * IPR_RC_JOB_CONTINUE
8503 **/
8504static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8505{
8506 ipr_cmd->ioa_cfg->cfg_locked = 0;
8507 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8508 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8509 return IPR_RC_JOB_CONTINUE;
8510}
8511
1da177e4
LT		 8512/**
8513 * ipr_reset_allowed - Query whether or not IOA can be reset
8514 * @ioa_cfg: ioa config struct
8515 *
8516 * Return value:
8517 * 0 if reset not allowed / non-zero if reset is allowed
8518 **/
8519static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8520{
8521 volatile u32 temp_reg;
8522
8523 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8524 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8525}
8526
8527/**
8528 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8529 * @ipr_cmd: ipr command struct
8530 *
8531 * Description: This function waits for adapter permission to run BIST,
8532 * then runs BIST. If the adapter does not give permission after a
8533 * reasonable time, we will reset the adapter anyway. The impact of
8534 * resetting the adapter without warning the adapter is the risk of
8535 * losing the persistent error log on the adapter. If the adapter is
8536 * reset while it is writing to the flash on the adapter, the flash
8537 * segment will have bad ECC and be zeroed.
8538 *
8539 * Return value:
8540 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8541 **/
8542static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8543{
8544 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8545 int rc = IPR_RC_JOB_RETURN;
8546
8547 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8548 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8549 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8550 } else {
fb51ccbf 8551 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8552 rc = IPR_RC_JOB_CONTINUE;
8553 }
8554
8555 return rc;
8556}
8557
8558/**
8701f185 8559 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8560 * @ipr_cmd: ipr command struct
8561 *
8562 * Description: This function alerts the adapter that it will be reset.
8563 * If memory space is not currently enabled, proceed directly
8564 * to running BIST on the adapter. The timer must always be started
8565 * so we guarantee we do not run BIST from ipr_isr.
8566 *
8567 * Return value:
8568 * IPR_RC_JOB_RETURN
8569 **/
8570static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8571{
8572 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8573 u16 cmd_reg;
8574 int rc;
8575
8576 ENTER;
8577 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8578
8579 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8580 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8581 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8582 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8583 } else {
fb51ccbf 8584 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8585 }
8586
8587 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8588 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8589
8590 LEAVE;
8591 return IPR_RC_JOB_RETURN;
8592}
8593
4fdd7c7a
BK		 8594/**
8595 * ipr_reset_quiesce_done - Complete IOA disconnect
8596 * @ipr_cmd: ipr command struct
8597 *
8598 * Description: Freeze the adapter to complete quiesce processing
8599 *
8600 * Return value:
8601 * IPR_RC_JOB_CONTINUE
8602 **/
8603static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8604{
8605 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8606
8607 ENTER;
8608 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8609 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8610 LEAVE;
8611 return IPR_RC_JOB_CONTINUE;
8612}
8613
8614/**
8615 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8616 * @ipr_cmd: ipr command struct
8617 *
8618 * Description: Ensure nothing is outstanding to the IOA and
8619 * proceed with IOA disconnect. Otherwise reset the IOA.
8620 *
8621 * Return value:
8622 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8623 **/
8624static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8625{
8626 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8627 struct ipr_cmnd *loop_cmd;
8628 struct ipr_hrr_queue *hrrq;
8629 int rc = IPR_RC_JOB_CONTINUE;
8630 int count = 0;
8631
8632 ENTER;
8633 ipr_cmd->job_step = ipr_reset_quiesce_done;
8634
8635 for_each_hrrq(hrrq, ioa_cfg) {
8636 spin_lock(&hrrq->_lock);
8637 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8638 count++;
8639 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8640 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8641 rc = IPR_RC_JOB_RETURN;
8642 break;
8643 }
8644 spin_unlock(&hrrq->_lock);
8645
8646 if (count)
8647 break;
8648 }
8649
8650 LEAVE;
8651 return rc;
8652}
8653
8654/**
8655 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8656 * @ipr_cmd: ipr command struct
8657 *
8658 * Description: Cancel any oustanding HCAMs to the IOA.
8659 *
8660 * Return value:
8661 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8662 **/
8663static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8664{
8665 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8666 int rc = IPR_RC_JOB_CONTINUE;
8667 struct ipr_cmd_pkt *cmd_pkt;
8668 struct ipr_cmnd *hcam_cmd;
8669 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8670
8671 ENTER;
8672 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8673
8674 if (!hrrq->ioa_is_dead) {
8675 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8676 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8677 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8678 continue;
8679
8680 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8681 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8682 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8683 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8684 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8685 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8686 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8687 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8688 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8689 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8690 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8691 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8692 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8693 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8694
8695 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8696 IPR_CANCEL_TIMEOUT);
8697
8698 rc = IPR_RC_JOB_RETURN;
8699 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8700 break;
8701 }
8702 }
8703 } else
8704 ipr_cmd->job_step = ipr_reset_alert;
8705
8706 LEAVE;
8707 return rc;
8708}
8709
1da177e4
LT		 8710/**
8711 * ipr_reset_ucode_download_done - Microcode download completion
8712 * @ipr_cmd: ipr command struct
8713 *
8714 * Description: This function unmaps the microcode download buffer.
8715 *
8716 * Return value:
8717 * IPR_RC_JOB_CONTINUE
8718 **/
8719static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8720{
8721 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8722 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8723
d73341bf 8724 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 8725 sglist->num_sg, DMA_TO_DEVICE);
8726
8727 ipr_cmd->job_step = ipr_reset_alert;
8728 return IPR_RC_JOB_CONTINUE;
8729}
8730
8731/**
8732 * ipr_reset_ucode_download - Download microcode to the adapter
8733 * @ipr_cmd: ipr command struct
8734 *
8735 * Description: This function checks to see if it there is microcode
8736 * to download to the adapter. If there is, a download is performed.
8737 *
8738 * Return value:
8739 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8740 **/
8741static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8742{
8743 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8744 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8745
8746 ENTER;
8747 ipr_cmd->job_step = ipr_reset_alert;
8748
8749 if (!sglist)
8750 return IPR_RC_JOB_CONTINUE;
8751
8752 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8753 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8754 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8755 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8756 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8757 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8758 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8759
a32c055f
WB		 8760 if (ioa_cfg->sis64)
8761 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8762 else
8763 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8764 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8765
8766 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8767 IPR_WRITE_BUFFER_TIMEOUT);
8768
8769 LEAVE;
8770 return IPR_RC_JOB_RETURN;
8771}
8772
8773/**
8774 * ipr_reset_shutdown_ioa - Shutdown the adapter
8775 * @ipr_cmd: ipr command struct
8776 *
8777 * Description: This function issues an adapter shutdown of the
8778 * specified type to the specified adapter as part of the
8779 * adapter reset job.
8780 *
8781 * Return value:
8782 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8783 **/
8784static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8785{
8786 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8787 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8788 unsigned long timeout;
8789 int rc = IPR_RC_JOB_CONTINUE;
8790
8791 ENTER;
4fdd7c7a
BK		 8792 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8793 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8794 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
56d6aa33 8795 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8796 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8797 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8798 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8799 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8800
ac09c349
BK		 8801 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8802 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8803 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8804 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8805 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8806 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8807 else
ac09c349 8808 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8809
8810 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8811
8812 rc = IPR_RC_JOB_RETURN;
8813 ipr_cmd->job_step = ipr_reset_ucode_download;
8814 } else
8815 ipr_cmd->job_step = ipr_reset_alert;
8816
8817 LEAVE;
8818 return rc;
8819}
8820
8821/**
8822 * ipr_reset_ioa_job - Adapter reset job
8823 * @ipr_cmd: ipr command struct
8824 *
8825 * Description: This function is the job router for the adapter reset job.
8826 *
8827 * Return value:
8828 * none
8829 **/
8830static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8831{
8832 u32 rc, ioasc;
1da177e4
LT		 8833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8834
8835 do {
96d21f00 8836 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8837
8838 if (ioa_cfg->reset_cmd != ipr_cmd) {
8839 /*
8840 * We are doing nested adapter resets and this is
8841 * not the current reset job.
8842 */
05a6538a 8843 list_add_tail(&ipr_cmd->queue,
8844 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8845 return;
8846 }
8847
8848 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e 8849 rc = ipr_cmd->job_step_failed(ipr_cmd);
8850 if (rc == IPR_RC_JOB_RETURN)
8851 return;
1da177e4
LT		 8852 }
8853
8854 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8855 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8856 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8857 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8858}
8859
8860/**
8861 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8862 * @ioa_cfg: ioa config struct
8863 * @job_step: first job step of reset job
8864 * @shutdown_type: shutdown type
8865 *
8866 * Description: This function will initiate the reset of the given adapter
8867 * starting at the selected job step.
8868 * If the caller needs to wait on the completion of the reset,
8869 * the caller must sleep on the reset_wait_q.
8870 *
8871 * Return value:
8872 * none
8873 **/
8874static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8875 int (*job_step) (struct ipr_cmnd *),
8876 enum ipr_shutdown_type shutdown_type)
8877{
8878 struct ipr_cmnd *ipr_cmd;
56d6aa33 8879 int i;
1da177e4
LT		 8880
8881 ioa_cfg->in_reset_reload = 1;
56d6aa33 8882 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8883 spin_lock(&ioa_cfg->hrrq[i]._lock);
8884 ioa_cfg->hrrq[i].allow_cmds = 0;
8885 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8886 }
8887 wmb();
bfae7820
BK		 8888 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
8889 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 8890
8891 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8892 ioa_cfg->reset_cmd = ipr_cmd;
8893 ipr_cmd->job_step = job_step;
8894 ipr_cmd->u.shutdown_type = shutdown_type;
8895
8896 ipr_reset_ioa_job(ipr_cmd);
8897}
8898
8899/**
8900 * ipr_initiate_ioa_reset - Initiate an adapter reset
8901 * @ioa_cfg: ioa config struct
8902 * @shutdown_type: shutdown type
8903 *
8904 * Description: This function will initiate the reset of the given adapter.
8905 * If the caller needs to wait on the completion of the reset,
8906 * the caller must sleep on the reset_wait_q.
8907 *
8908 * Return value:
8909 * none
8910 **/
8911static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8912 enum ipr_shutdown_type shutdown_type)
8913{
56d6aa33 8914 int i;
8915
8916 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 8917 return;
8918
41e9a696
BK		 8919 if (ioa_cfg->in_reset_reload) {
8920 if (ioa_cfg->sdt_state == GET_DUMP)
8921 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8922 else if (ioa_cfg->sdt_state == READ_DUMP)
8923 ioa_cfg->sdt_state = ABORT_DUMP;
8924 }
1da177e4
LT		 8925
8926 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8927 dev_err(&ioa_cfg->pdev->dev,
8928 "IOA taken offline - error recovery failed\n");
8929
8930 ioa_cfg->reset_retries = 0;
56d6aa33 8931 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8932 spin_lock(&ioa_cfg->hrrq[i]._lock);
8933 ioa_cfg->hrrq[i].ioa_is_dead = 1;
8934 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8935 }
8936 wmb();
1da177e4
LT		 8937
8938 if (ioa_cfg->in_ioa_bringdown) {
8939 ioa_cfg->reset_cmd = NULL;
8940 ioa_cfg->in_reset_reload = 0;
8941 ipr_fail_all_ops(ioa_cfg);
8942 wake_up_all(&ioa_cfg->reset_wait_q);
8943
bfae7820
BK		 8944 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
8945 spin_unlock_irq(ioa_cfg->host->host_lock);
8946 scsi_unblock_requests(ioa_cfg->host);
8947 spin_lock_irq(ioa_cfg->host->host_lock);
8948 }
1da177e4
LT		 8949 return;
8950 } else {
8951 ioa_cfg->in_ioa_bringdown = 1;
8952 shutdown_type = IPR_SHUTDOWN_NONE;
8953 }
8954 }
8955
8956 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8957 shutdown_type);
8958}
8959
f8a88b19
LV		 8960/**
8961 * ipr_reset_freeze - Hold off all I/O activity
8962 * @ipr_cmd: ipr command struct
8963 *
8964 * Description: If the PCI slot is frozen, hold off all I/O
8965 * activity; then, as soon as the slot is available again,
8966 * initiate an adapter reset.
8967 */
8968static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8969{
56d6aa33 8970 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8971 int i;
8972
f8a88b19 8973 /* Disallow new interrupts, avoid loop */
56d6aa33 8974 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8975 spin_lock(&ioa_cfg->hrrq[i]._lock);
8976 ioa_cfg->hrrq[i].allow_interrupts = 0;
8977 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8978 }
8979 wmb();
05a6538a 8980 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 8981 ipr_cmd->done = ipr_reset_ioa_job;
8982 return IPR_RC_JOB_RETURN;
8983}
8984
6270e593
BK		 8985/**
8986 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
8987 * @pdev: PCI device struct
8988 *
8989 * Description: This routine is called to tell us that the MMIO
8990 * access to the IOA has been restored
8991 */
8992static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
8993{
8994 unsigned long flags = 0;
8995 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8996
8997 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8998 if (!ioa_cfg->probe_done)
8999 pci_save_state(pdev);
9000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9001 return PCI_ERS_RESULT_NEED_RESET;
9002}
9003
f8a88b19
LV		 9004/**
9005 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9006 * @pdev: PCI device struct
9007 *
9008 * Description: This routine is called to tell us that the PCI bus
9009 * is down. Can't do anything here, except put the device driver
9010 * into a holding pattern, waiting for the PCI bus to come back.
9011 */
9012static void ipr_pci_frozen(struct pci_dev *pdev)
9013{
9014 unsigned long flags = 0;
9015 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9016
9017 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9018 if (ioa_cfg->probe_done)
9019 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 9020 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9021}
9022
9023/**
9024 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9025 * @pdev: PCI device struct
9026 *
9027 * Description: This routine is called by the pci error recovery
9028 * code after the PCI slot has been reset, just before we
9029 * should resume normal operations.
9030 */
9031static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9032{
9033 unsigned long flags = 0;
9034 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9035
9036 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9037 if (ioa_cfg->probe_done) {
9038 if (ioa_cfg->needs_warm_reset)
9039 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9040 else
9041 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9042 IPR_SHUTDOWN_NONE);
9043 } else
9044 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9045 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9046 return PCI_ERS_RESULT_RECOVERED;
9047}
9048
9049/**
9050 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9051 * @pdev: PCI device struct
9052 *
9053 * Description: This routine is called when the PCI bus has
9054 * permanently failed.
9055 */
9056static void ipr_pci_perm_failure(struct pci_dev *pdev)
9057{
9058 unsigned long flags = 0;
9059 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 9060 int i;
f8a88b19
LV		 9061
9062 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9063 if (ioa_cfg->probe_done) {
9064 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9065 ioa_cfg->sdt_state = ABORT_DUMP;
9066 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9067 ioa_cfg->in_ioa_bringdown = 1;
9068 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9069 spin_lock(&ioa_cfg->hrrq[i]._lock);
9070 ioa_cfg->hrrq[i].allow_cmds = 0;
9071 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9072 }
9073 wmb();
9074 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9075 } else
9076 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9078}
9079
9080/**
9081 * ipr_pci_error_detected - Called when a PCI error is detected.
9082 * @pdev: PCI device struct
9083 * @state: PCI channel state
9084 *
9085 * Description: Called when a PCI error is detected.
9086 *
9087 * Return value:
9088 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9089 */
9090static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9091 pci_channel_state_t state)
9092{
9093 switch (state) {
9094 case pci_channel_io_frozen:
9095 ipr_pci_frozen(pdev);
6270e593 9096 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 9097 case pci_channel_io_perm_failure:
9098 ipr_pci_perm_failure(pdev);
9099 return PCI_ERS_RESULT_DISCONNECT;
9100 break;
9101 default:
9102 break;
9103 }
9104 return PCI_ERS_RESULT_NEED_RESET;
9105}
9106
1da177e4
LT		 9107/**
9108 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9109 * @ioa_cfg: ioa cfg struct
9110 *
9111 * Description: This is the second phase of adapter intialization
9112 * This function takes care of initilizing the adapter to the point
9113 * where it can accept new commands.
9114
9115 * Return value:
b1c11812 9116 * 0 on success / -EIO on failure
1da177e4 9117 **/
6f039790 9118static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9119{
9120 int rc = 0;
9121 unsigned long host_lock_flags = 0;
9122
9123 ENTER;
9124 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9125 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 9126 ioa_cfg->probe_done = 1;
ce155cce 9127 if (ioa_cfg->needs_hard_reset) {
9128 ioa_cfg->needs_hard_reset = 0;
9129 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9130 } else
9131 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9132 IPR_SHUTDOWN_NONE);
1da177e4 9133 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
1da177e4
LT		 9134
9135 LEAVE;
9136 return rc;
9137}
9138
9139/**
9140 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9141 * @ioa_cfg: ioa config struct
9142 *
9143 * Return value:
9144 * none
9145 **/
9146static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9147{
9148 int i;
9149
a65e8f12
BK		 9150 if (ioa_cfg->ipr_cmnd_list) {
9151 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9152 if (ioa_cfg->ipr_cmnd_list[i])
9153 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9154 ioa_cfg->ipr_cmnd_list[i],
9155 ioa_cfg->ipr_cmnd_list_dma[i]);
1da177e4 9156
a65e8f12
BK		 9157 ioa_cfg->ipr_cmnd_list[i] = NULL;
9158 }
1da177e4
LT		 9159 }
9160
9161 if (ioa_cfg->ipr_cmd_pool)
d73341bf 9162 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 9163
89aad428
BK		 9164 kfree(ioa_cfg->ipr_cmnd_list);
9165 kfree(ioa_cfg->ipr_cmnd_list_dma);
9166 ioa_cfg->ipr_cmnd_list = NULL;
9167 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 9168 ioa_cfg->ipr_cmd_pool = NULL;
9169}
9170
9171/**
9172 * ipr_free_mem - Frees memory allocated for an adapter
9173 * @ioa_cfg: ioa cfg struct
9174 *
9175 * Return value:
9176 * nothing
9177 **/
9178static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9179{
9180 int i;
9181
9182 kfree(ioa_cfg->res_entries);
d73341bf
AB		 9183 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9184 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 9185 ipr_free_cmd_blks(ioa_cfg);
05a6538a 9186
9187 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 9188 dma_free_coherent(&ioa_cfg->pdev->dev,
9189 sizeof(u32) * ioa_cfg->hrrq[i].size,
9190 ioa_cfg->hrrq[i].host_rrq,
9191 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9192
d73341bf
AB		 9193 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9194 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4
LT		 9195
9196 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9197 dma_free_coherent(&ioa_cfg->pdev->dev,
9198 sizeof(struct ipr_hostrcb),
9199 ioa_cfg->hostrcb[i],
9200 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 9201 }
9202
9203 ipr_free_dump(ioa_cfg);
1da177e4
LT		 9204 kfree(ioa_cfg->trace);
9205}
9206
9207/**
2796ca5e
BK		 9208 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9209 * @ioa_cfg: ipr cfg struct
1da177e4 9210 *
2796ca5e 9211 * This function frees all allocated IRQs for the
1da177e4
LT		 9212 * specified adapter.
9213 *
9214 * Return value:
9215 * none
9216 **/
2796ca5e 9217static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9218{
9219 struct pci_dev *pdev = ioa_cfg->pdev;
9220
05a6538a 9221 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9222 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9223 int i;
9224 for (i = 0; i < ioa_cfg->nvectors; i++)
9225 free_irq(ioa_cfg->vectors_info[i].vec,
2796ca5e 9226 &ioa_cfg->hrrq[i]);
05a6538a 9227 } else
9228 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9229
56d6aa33 9230 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 9231 pci_disable_msi(pdev);
56d6aa33 9232 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9233 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 9234 pci_disable_msix(pdev);
56d6aa33 9235 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9236 }
2796ca5e 9237}
05a6538a 9238
2796ca5e
BK		 9239/**
9240 * ipr_free_all_resources - Free all allocated resources for an adapter.
9241 * @ipr_cmd: ipr command struct
9242 *
9243 * This function frees all allocated resources for the
9244 * specified adapter.
9245 *
9246 * Return value:
9247 * none
9248 **/
9249static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9250{
9251 struct pci_dev *pdev = ioa_cfg->pdev;
05a6538a 9252
2796ca5e
BK		 9253 ENTER;
9254 ipr_free_irqs(ioa_cfg);
9255 if (ioa_cfg->reset_work_q)
9256 destroy_workqueue(ioa_cfg->reset_work_q);
1da177e4
LT		 9257 iounmap(ioa_cfg->hdw_dma_regs);
9258 pci_release_regions(pdev);
9259 ipr_free_mem(ioa_cfg);
9260 scsi_host_put(ioa_cfg->host);
9261 pci_disable_device(pdev);
9262 LEAVE;
9263}
9264
9265/**
9266 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9267 * @ioa_cfg: ioa config struct
9268 *
9269 * Return value:
9270 * 0 on success / -ENOMEM on allocation failure
9271 **/
6f039790 9272static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9273{
9274 struct ipr_cmnd *ipr_cmd;
9275 struct ipr_ioarcb *ioarcb;
9276 dma_addr_t dma_addr;
05a6538a 9277 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 9278
d73341bf 9279 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 9280 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 9281
9282 if (!ioa_cfg->ipr_cmd_pool)
9283 return -ENOMEM;
9284
89aad428
BK		 9285 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9286 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9287
9288 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9289 ipr_free_cmd_blks(ioa_cfg);
9290 return -ENOMEM;
9291 }
9292
05a6538a 9293 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9294 if (ioa_cfg->hrrq_num > 1) {
9295 if (i == 0) {
9296 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9297 ioa_cfg->hrrq[i].min_cmd_id = 0;
9298 ioa_cfg->hrrq[i].max_cmd_id =
9299 (entries_each_hrrq - 1);
9300 } else {
9301 entries_each_hrrq =
9302 IPR_NUM_BASE_CMD_BLKS/
9303 (ioa_cfg->hrrq_num - 1);
9304 ioa_cfg->hrrq[i].min_cmd_id =
9305 IPR_NUM_INTERNAL_CMD_BLKS +
9306 (i - 1) * entries_each_hrrq;
9307 ioa_cfg->hrrq[i].max_cmd_id =
9308 (IPR_NUM_INTERNAL_CMD_BLKS +
9309 i * entries_each_hrrq - 1);
9310 }
9311 } else {
9312 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9313 ioa_cfg->hrrq[i].min_cmd_id = 0;
9314 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9315 }
9316 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9317 }
9318
9319 BUG_ON(ioa_cfg->hrrq_num == 0);
9320
9321 i = IPR_NUM_CMD_BLKS -
9322 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9323 if (i > 0) {
9324 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9325 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9326 }
9327
1da177e4 9328 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 9329 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 9330
9331 if (!ipr_cmd) {
9332 ipr_free_cmd_blks(ioa_cfg);
9333 return -ENOMEM;
9334 }
9335
9336 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9337 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9338 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9339
9340 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9341 ipr_cmd->dma_addr = dma_addr;
9342 if (ioa_cfg->sis64)
9343 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9344 else
9345 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9346
1da177e4 9347 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9348 if (ioa_cfg->sis64) {
9349 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9350 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9351 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9352 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9353 } else {
9354 ioarcb->write_ioadl_addr =
9355 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9356 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9357 ioarcb->ioasa_host_pci_addr =
96d21f00 9358 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9359 }
1da177e4
LT		 9360 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9361 ipr_cmd->cmd_index = i;
9362 ipr_cmd->ioa_cfg = ioa_cfg;
9363 ipr_cmd->sense_buffer_dma = dma_addr +
9364 offsetof(struct ipr_cmnd, sense_buffer);
9365
05a6538a 9366 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9367 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9368 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9369 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9370 hrrq_id++;
1da177e4
LT		 9371 }
9372
9373 return 0;
9374}
9375
9376/**
9377 * ipr_alloc_mem - Allocate memory for an adapter
9378 * @ioa_cfg: ioa config struct
9379 *
9380 * Return value:
9381 * 0 on success / non-zero for error
9382 **/
6f039790 9383static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9384{
9385 struct pci_dev *pdev = ioa_cfg->pdev;
9386 int i, rc = -ENOMEM;
9387
9388 ENTER;
0bc42e35 9389 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9390 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9391
9392 if (!ioa_cfg->res_entries)
9393 goto out;
9394
3e7ebdfa 9395 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9396 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9397 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9398 }
1da177e4 9399
d73341bf
AB		 9400 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9401 sizeof(struct ipr_misc_cbs),
9402 &ioa_cfg->vpd_cbs_dma,
9403 GFP_KERNEL);
1da177e4
LT		 9404
9405 if (!ioa_cfg->vpd_cbs)
9406 goto out_free_res_entries;
9407
9408 if (ipr_alloc_cmd_blks(ioa_cfg))
9409 goto out_free_vpd_cbs;
9410
05a6538a 9411 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9412 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9413 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9414 &ioa_cfg->hrrq[i].host_rrq_dma,
9415 GFP_KERNEL);
05a6538a 9416
9417 if (!ioa_cfg->hrrq[i].host_rrq) {
9418 while (--i > 0)
d73341bf 9419 dma_free_coherent(&pdev->dev,
05a6538a 9420 sizeof(u32) * ioa_cfg->hrrq[i].size,
9421 ioa_cfg->hrrq[i].host_rrq,
9422 ioa_cfg->hrrq[i].host_rrq_dma);
9423 goto out_ipr_free_cmd_blocks;
9424 }
9425 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9426 }
1da177e4 9427
d73341bf
AB		 9428 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9429 ioa_cfg->cfg_table_size,
9430 &ioa_cfg->cfg_table_dma,
9431 GFP_KERNEL);
1da177e4 9432
3e7ebdfa 9433 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9434 goto out_free_host_rrq;
9435
9436 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9437 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9438 sizeof(struct ipr_hostrcb),
9439 &ioa_cfg->hostrcb_dma[i],
9440 GFP_KERNEL);
1da177e4
LT		 9441
9442 if (!ioa_cfg->hostrcb[i])
9443 goto out_free_hostrcb_dma;
9444
9445 ioa_cfg->hostrcb[i]->hostrcb_dma =
9446 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9447 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9448 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9449 }
9450
0bc42e35 9451 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9452 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9453
9454 if (!ioa_cfg->trace)
9455 goto out_free_hostrcb_dma;
9456
1da177e4
LT		 9457 rc = 0;
9458out:
9459 LEAVE;
9460 return rc;
9461
9462out_free_hostrcb_dma:
9463 while (i-- > 0) {
d73341bf
AB		 9464 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9465 ioa_cfg->hostrcb[i],
9466 ioa_cfg->hostrcb_dma[i]);
1da177e4 9467 }
d73341bf
AB		 9468 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9469 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9470out_free_host_rrq:
05a6538a 9471 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9472 dma_free_coherent(&pdev->dev,
9473 sizeof(u32) * ioa_cfg->hrrq[i].size,
9474 ioa_cfg->hrrq[i].host_rrq,
9475 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9476 }
1da177e4
LT		 9477out_ipr_free_cmd_blocks:
9478 ipr_free_cmd_blks(ioa_cfg);
9479out_free_vpd_cbs:
d73341bf
AB		 9480 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9481 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9482out_free_res_entries:
9483 kfree(ioa_cfg->res_entries);
9484 goto out;
9485}
9486
9487/**
9488 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9489 * @ioa_cfg: ioa config struct
9490 *
9491 * Return value:
9492 * none
9493 **/
6f039790 9494static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9495{
9496 int i;
9497
9498 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9499 ioa_cfg->bus_attr[i].bus = i;
9500 ioa_cfg->bus_attr[i].qas_enabled = 0;
9501 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9502 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9503 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9504 else
9505 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9506 }
9507}
9508
6270e593
BK		 9509/**
9510 * ipr_init_regs - Initialize IOA registers
9511 * @ioa_cfg: ioa config struct
9512 *
9513 * Return value:
9514 * none
9515 **/
9516static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9517{
9518 const struct ipr_interrupt_offsets *p;
9519 struct ipr_interrupts *t;
9520 void __iomem *base;
9521
9522 p = &ioa_cfg->chip_cfg->regs;
9523 t = &ioa_cfg->regs;
9524 base = ioa_cfg->hdw_dma_regs;
9525
9526 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9527 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9528 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9529 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9530 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9531 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9532 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9533 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9534 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9535 t->ioarrin_reg = base + p->ioarrin_reg;
9536 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9537 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9538 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9539 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9540 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9541 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9542
9543 if (ioa_cfg->sis64) {
9544 t->init_feedback_reg = base + p->init_feedback_reg;
9545 t->dump_addr_reg = base + p->dump_addr_reg;
9546 t->dump_data_reg = base + p->dump_data_reg;
9547 t->endian_swap_reg = base + p->endian_swap_reg;
9548 }
9549}
9550
1da177e4
LT		 9551/**
9552 * ipr_init_ioa_cfg - Initialize IOA config struct
9553 * @ioa_cfg: ioa config struct
9554 * @host: scsi host struct
9555 * @pdev: PCI dev struct
9556 *
9557 * Return value:
9558 * none
9559 **/
6f039790
GKH		 9560static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9561 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9562{
6270e593 9563 int i;
1da177e4
LT		 9564
9565 ioa_cfg->host = host;
9566 ioa_cfg->pdev = pdev;
9567 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9568 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9569 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9570 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9571 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9572 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9573 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9574 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9575
1da177e4
LT		 9576 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9577 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9578 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9579 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9580 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9581 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9582 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9583 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9584 ioa_cfg->sdt_state = INACTIVE;
9585
9586 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9587 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9588
3e7ebdfa
WB		 9589 if (ioa_cfg->sis64) {
9590 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9591 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9592 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9593 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9594 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9595 + ((sizeof(struct ipr_config_table_entry64)
9596 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9597 } else {
9598 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9599 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9600 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9601 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9602 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9603 + ((sizeof(struct ipr_config_table_entry)
9604 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9605 }
6270e593 9606
f688f96d 9607 host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9608 host->unique_id = host->host_no;
9609 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9610 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9611 pci_set_drvdata(pdev, ioa_cfg);
9612
6270e593
BK		 9613 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9614 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9615 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9616 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9617 if (i == 0)
9618 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9619 else
9620 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9621 }
1da177e4
LT		 9622}
9623
9624/**
1be7bd82 9625 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9626 * @dev_id: PCI device id struct
9627 *
9628 * Return value:
1be7bd82 9629 * ptr to chip information on success / NULL on failure
1da177e4 9630 **/
6f039790 9631static const struct ipr_chip_t *
1be7bd82 9632ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9633{
9634 int i;
9635
1da177e4
LT		 9636 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9637 if (ipr_chip[i].vendor == dev_id->vendor &&
9638 ipr_chip[i].device == dev_id->device)
1be7bd82 9639 return &ipr_chip[i];
1da177e4
LT		 9640 return NULL;
9641}
9642
6270e593
BK		 9643/**
9644 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9645 * during probe time
9646 * @ioa_cfg: ioa config struct
9647 *
9648 * Return value:
9649 * None
9650 **/
9651static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9652{
9653 struct pci_dev *pdev = ioa_cfg->pdev;
9654
9655 if (pci_channel_offline(pdev)) {
9656 wait_event_timeout(ioa_cfg->eeh_wait_q,
9657 !pci_channel_offline(pdev),
9658 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9659 pci_restore_state(pdev);
9660 }
9661}
9662
05a6538a 9663static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9664{
9665 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
60e76b77 9666 int i, vectors;
05a6538a 9667
9668 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9669 entries[i].entry = i;
9670
60e76b77
AG		 9671 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9672 entries, 1, ipr_number_of_msix);
9673 if (vectors < 0) {
6270e593 9674 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9675 return vectors;
05a6538a 9676 }
9677
60e76b77
AG		 9678 for (i = 0; i < vectors; i++)
9679 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9680 ioa_cfg->nvectors = vectors;
05a6538a 9681
60e76b77 9682 return 0;
05a6538a 9683}
9684
9685static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9686{
60e76b77 9687 int i, vectors;
05a6538a 9688
60e76b77
AG		 9689 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9690 if (vectors < 0) {
6270e593 9691 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9692 return vectors;
05a6538a 9693 }
9694
60e76b77
AG		 9695 for (i = 0; i < vectors; i++)
9696 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9697 ioa_cfg->nvectors = vectors;
05a6538a 9698
60e76b77 9699 return 0;
05a6538a 9700}
9701
9702static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9703{
9704 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9705
9706 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9707 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9708 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9709 ioa_cfg->vectors_info[vec_idx].
9710 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9711 }
9712}
9713
9714static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9715{
9716 int i, rc;
9717
9718 for (i = 1; i < ioa_cfg->nvectors; i++) {
9719 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9720 ipr_isr_mhrrq,
9721 0,
9722 ioa_cfg->vectors_info[i].desc,
9723 &ioa_cfg->hrrq[i]);
9724 if (rc) {
9725 while (--i >= 0)
9726 free_irq(ioa_cfg->vectors_info[i].vec,
9727 &ioa_cfg->hrrq[i]);
9728 return rc;
9729 }
9730 }
9731 return 0;
9732}
9733
95fecd90
WB		 9734/**
9735 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9736 * @pdev: PCI device struct
9737 *
9738 * Description: Simply set the msi_received flag to 1 indicating that
9739 * Message Signaled Interrupts are supported.
9740 *
9741 * Return value:
9742 * 0 on success / non-zero on failure
9743 **/
6f039790 9744static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9745{
9746 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9747 unsigned long lock_flags = 0;
9748 irqreturn_t rc = IRQ_HANDLED;
9749
05a6538a 9750 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9751 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9752
9753 ioa_cfg->msi_received = 1;
9754 wake_up(&ioa_cfg->msi_wait_q);
9755
9756 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9757 return rc;
9758}
9759
9760/**
9761 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9762 * @pdev: PCI device struct
9763 *
60e76b77 9764 * Description: The return value from pci_enable_msi_range() can not always be
95fecd90
WB		 9765 * trusted. This routine sets up and initiates a test interrupt to determine
9766 * if the interrupt is received via the ipr_test_intr() service routine.
9767 * If the tests fails, the driver will fall back to LSI.
9768 *
9769 * Return value:
9770 * 0 on success / non-zero on failure
9771 **/
6f039790 9772static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9773{
9774 int rc;
9775 volatile u32 int_reg;
9776 unsigned long lock_flags = 0;
9777
9778 ENTER;
9779
9780 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9781 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9782 ioa_cfg->msi_received = 0;
9783 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9784 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9785 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9786 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9787
f19799f4 9788 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9789 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9790 else
9791 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9792 if (rc) {
9793 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9794 return rc;
9795 } else if (ipr_debug)
9796 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9797
214777ba 9798 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9799 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9800 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9801 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9802 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9803
95fecd90
WB		 9804 if (!ioa_cfg->msi_received) {
9805 /* MSI test failed */
9806 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9807 rc = -EOPNOTSUPP;
9808 } else if (ipr_debug)
9809 dev_info(&pdev->dev, "MSI test succeeded.\n");
9810
9811 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9812
f19799f4 9813 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9814 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9815 else
9816 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9817
9818 LEAVE;
9819
9820 return rc;
9821}
9822
05a6538a 9823 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9824 * @pdev: PCI device struct
9825 * @dev_id: PCI device id struct
9826 *
9827 * Return value:
9828 * 0 on success / non-zero on failure
9829 **/
6f039790
GKH		 9830static int ipr_probe_ioa(struct pci_dev *pdev,
9831 const struct pci_device_id *dev_id)
1da177e4
LT		 9832{
9833 struct ipr_ioa_cfg *ioa_cfg;
9834 struct Scsi_Host *host;
9835 unsigned long ipr_regs_pci;
9836 void __iomem *ipr_regs;
a2a65a3e 9837 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9838 volatile u32 mask, uproc, interrupts;
feccada9 9839 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9840
9841 ENTER;
9842
1da177e4 9843 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9844 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9845
9846 if (!host) {
9847 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9848 rc = -ENOMEM;
6270e593 9849 goto out;
1da177e4
LT		 9850 }
9851
9852 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9853 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9854 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9855
1be7bd82 9856 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9857
1be7bd82 9858 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9859 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9860 dev_id->vendor, dev_id->device);
9861 goto out_scsi_host_put;
9862 }
9863
a32c055f
WB		 9864 /* set SIS 32 or SIS 64 */
9865 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9866 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 9867 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 9868 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 9869
5469cb5b
BK		 9870 if (ipr_transop_timeout)
9871 ioa_cfg->transop_timeout = ipr_transop_timeout;
9872 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
9873 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
9874 else
9875 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
9876
44c10138 9877 ioa_cfg->revid = pdev->revision;
463fc696 9878
6270e593
BK		 9879 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
9880
1da177e4
LT		 9881 ipr_regs_pci = pci_resource_start(pdev, 0);
9882
9883 rc = pci_request_regions(pdev, IPR_NAME);
9884 if (rc < 0) {
9885 dev_err(&pdev->dev,
9886 "Couldn't register memory range of registers\n");
9887 goto out_scsi_host_put;
9888 }
9889
6270e593
BK		 9890 rc = pci_enable_device(pdev);
9891
9892 if (rc || pci_channel_offline(pdev)) {
9893 if (pci_channel_offline(pdev)) {
9894 ipr_wait_for_pci_err_recovery(ioa_cfg);
9895 rc = pci_enable_device(pdev);
9896 }
9897
9898 if (rc) {
9899 dev_err(&pdev->dev, "Cannot enable adapter\n");
9900 ipr_wait_for_pci_err_recovery(ioa_cfg);
9901 goto out_release_regions;
9902 }
9903 }
9904
25729a7f 9905 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 9906
9907 if (!ipr_regs) {
9908 dev_err(&pdev->dev,
9909 "Couldn't map memory range of registers\n");
9910 rc = -ENOMEM;
6270e593 9911 goto out_disable;
1da177e4
LT		 9912 }
9913
9914 ioa_cfg->hdw_dma_regs = ipr_regs;
9915 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
9916 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
9917
6270e593 9918 ipr_init_regs(ioa_cfg);
1da177e4 9919
a32c055f 9920 if (ioa_cfg->sis64) {
869404cb 9921 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 9922 if (rc < 0) {
869404cb
AB		 9923 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
9924 rc = dma_set_mask_and_coherent(&pdev->dev,
9925 DMA_BIT_MASK(32));
a32c055f 9926 }
a32c055f 9927 } else
869404cb 9928 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 9929
1da177e4 9930 if (rc < 0) {
869404cb 9931 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 9932 goto cleanup_nomem;
9933 }
9934
9935 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
9936 ioa_cfg->chip_cfg->cache_line_size);
9937
9938 if (rc != PCIBIOS_SUCCESSFUL) {
9939 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 9940 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 9941 rc = -EIO;
9942 goto cleanup_nomem;
9943 }
9944
6270e593
BK		 9945 /* Issue MMIO read to ensure card is not in EEH */
9946 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
9947 ipr_wait_for_pci_err_recovery(ioa_cfg);
9948
05a6538a 9949 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
9950 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
9951 IPR_MAX_MSIX_VECTORS);
9952 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
9953 }
9954
9955 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9956 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 9957 ioa_cfg->intr_flag = IPR_USE_MSIX;
9958 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9959 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 9960 ioa_cfg->intr_flag = IPR_USE_MSI;
9961 else {
9962 ioa_cfg->intr_flag = IPR_USE_LSI;
9963 ioa_cfg->nvectors = 1;
9964 dev_info(&pdev->dev, "Cannot enable MSI.\n");
9965 }
9966
6270e593
BK		 9967 pci_set_master(pdev);
9968
9969 if (pci_channel_offline(pdev)) {
9970 ipr_wait_for_pci_err_recovery(ioa_cfg);
9971 pci_set_master(pdev);
9972 if (pci_channel_offline(pdev)) {
9973 rc = -EIO;
9974 goto out_msi_disable;
9975 }
9976 }
9977
05a6538a 9978 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9979 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 9980 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 9981 if (rc == -EOPNOTSUPP) {
6270e593 9982 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9983 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9984 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9985 pci_disable_msi(pdev);
9986 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9987 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9988 pci_disable_msix(pdev);
9989 }
9990
9991 ioa_cfg->intr_flag = IPR_USE_LSI;
9992 ioa_cfg->nvectors = 1;
9993 }
95fecd90
WB		 9994 else if (rc)
9995 goto out_msi_disable;
05a6538a 9996 else {
9997 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9998 dev_info(&pdev->dev,
9999 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10000 ioa_cfg->nvectors, pdev->irq);
10001 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10002 dev_info(&pdev->dev,
10003 "Request for %d MSIXs succeeded.",
10004 ioa_cfg->nvectors);
10005 }
10006 }
10007
10008 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10009 (unsigned int)num_online_cpus(),
10010 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 10011
1da177e4 10012 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 10013 goto out_msi_disable;
1da177e4
LT		 10014
10015 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 10016 goto out_msi_disable;
1da177e4
LT		 10017
10018 rc = ipr_alloc_mem(ioa_cfg);
10019 if (rc < 0) {
10020 dev_err(&pdev->dev,
10021 "Couldn't allocate enough memory for device driver!\n");
f170c684 10022 goto out_msi_disable;
1da177e4
LT		 10023 }
10024
6270e593
BK		 10025 /* Save away PCI config space for use following IOA reset */
10026 rc = pci_save_state(pdev);
10027
10028 if (rc != PCIBIOS_SUCCESSFUL) {
10029 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10030 rc = -EIO;
10031 goto cleanup_nolog;
10032 }
10033
ce155cce 10034 /*
10035 * If HRRQ updated interrupt is not masked, or reset alert is set,
10036 * the card is in an unknown state and needs a hard reset
10037 */
214777ba
WB		 10038 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10039 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10040 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce 10041 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10042 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 10043 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 10044 ioa_cfg->needs_hard_reset = 1;
10045 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10046 ioa_cfg->ioa_unit_checked = 1;
ce155cce 10047
56d6aa33 10048 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10049 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 10050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10051
05a6538a 10052 if (ioa_cfg->intr_flag == IPR_USE_MSI
10053 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10054 name_msi_vectors(ioa_cfg);
10055 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10056 0,
10057 ioa_cfg->vectors_info[0].desc,
10058 &ioa_cfg->hrrq[0]);
10059 if (!rc)
10060 rc = ipr_request_other_msi_irqs(ioa_cfg);
10061 } else {
10062 rc = request_irq(pdev->irq, ipr_isr,
10063 IRQF_SHARED,
10064 IPR_NAME, &ioa_cfg->hrrq[0]);
10065 }
1da177e4
LT		 10066 if (rc) {
10067 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10068 pdev->irq, rc);
10069 goto cleanup_nolog;
10070 }
10071
463fc696
BK		 10072 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10073 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10074 ioa_cfg->needs_warm_reset = 1;
10075 ioa_cfg->reset = ipr_reset_slot_reset;
2796ca5e
BK		 10076
10077 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10078 WQ_MEM_RECLAIM, host->host_no);
10079
10080 if (!ioa_cfg->reset_work_q) {
10081 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10082 goto out_free_irq;
10083 }
463fc696
BK		 10084 } else
10085 ioa_cfg->reset = ipr_reset_start_bist;
10086
feccada9 10087 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10088 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 10089 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10090
10091 LEAVE;
10092out:
10093 return rc;
10094
2796ca5e
BK		 10095out_free_irq:
10096 ipr_free_irqs(ioa_cfg);
1da177e4
LT		 10097cleanup_nolog:
10098 ipr_free_mem(ioa_cfg);
95fecd90 10099out_msi_disable:
6270e593 10100 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 10101 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10102 pci_disable_msi(pdev);
10103 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10104 pci_disable_msix(pdev);
f170c684
JL		 10105cleanup_nomem:
10106 iounmap(ipr_regs);
6270e593
BK		 10107out_disable:
10108 pci_disable_device(pdev);
1da177e4
LT		 10109out_release_regions:
10110 pci_release_regions(pdev);
10111out_scsi_host_put:
10112 scsi_host_put(host);
1da177e4
LT		 10113 goto out;
10114}
10115
1da177e4
LT		 10116/**
10117 * ipr_initiate_ioa_bringdown - Bring down an adapter
10118 * @ioa_cfg: ioa config struct
10119 * @shutdown_type: shutdown type
10120 *
10121 * Description: This function will initiate bringing down the adapter.
10122 * This consists of issuing an IOA shutdown to the adapter
10123 * to flush the cache, and running BIST.
10124 * If the caller needs to wait on the completion of the reset,
10125 * the caller must sleep on the reset_wait_q.
10126 *
10127 * Return value:
10128 * none
10129 **/
10130static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10131 enum ipr_shutdown_type shutdown_type)
10132{
10133 ENTER;
10134 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10135 ioa_cfg->sdt_state = ABORT_DUMP;
10136 ioa_cfg->reset_retries = 0;
10137 ioa_cfg->in_ioa_bringdown = 1;
10138 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10139 LEAVE;
10140}
10141
10142/**
10143 * __ipr_remove - Remove a single adapter
10144 * @pdev: pci device struct
10145 *
10146 * Adapter hot plug remove entry point.
10147 *
10148 * Return value:
10149 * none
10150 **/
10151static void __ipr_remove(struct pci_dev *pdev)
10152{
10153 unsigned long host_lock_flags = 0;
10154 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 10155 int i;
feccada9 10156 unsigned long driver_lock_flags;
1da177e4
LT		 10157 ENTER;
10158
10159 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 10160 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10161 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10162 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10163 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10164 }
10165
bfae7820
BK		 10166 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10167 spin_lock(&ioa_cfg->hrrq[i]._lock);
10168 ioa_cfg->hrrq[i].removing_ioa = 1;
10169 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10170 }
10171 wmb();
1da177e4
LT		 10172 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10173
10174 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10175 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 10176 flush_work(&ioa_cfg->work_q);
2796ca5e
BK		 10177 if (ioa_cfg->reset_work_q)
10178 flush_workqueue(ioa_cfg->reset_work_q);
9077a944 10179 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 10180 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10181
feccada9 10182 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10183 list_del(&ioa_cfg->queue);
feccada9 10184 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10185
10186 if (ioa_cfg->sdt_state == ABORT_DUMP)
10187 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10188 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10189
10190 ipr_free_all_resources(ioa_cfg);
10191
10192 LEAVE;
10193}
10194
10195/**
10196 * ipr_remove - IOA hot plug remove entry point
10197 * @pdev: pci device struct
10198 *
10199 * Adapter hot plug remove entry point.
10200 *
10201 * Return value:
10202 * none
10203 **/
6f039790 10204static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 10205{
10206 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10207
10208 ENTER;
10209
ee959b00 10210 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10211 &ipr_trace_attr);
ee959b00 10212 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10213 &ipr_dump_attr);
10214 scsi_remove_host(ioa_cfg->host);
10215
10216 __ipr_remove(pdev);
10217
10218 LEAVE;
10219}
10220
10221/**
10222 * ipr_probe - Adapter hot plug add entry point
10223 *
10224 * Return value:
10225 * 0 on success / non-zero on failure
10226 **/
6f039790 10227static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 10228{
10229 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 10230 int rc, i;
1da177e4
LT		 10231
10232 rc = ipr_probe_ioa(pdev, dev_id);
10233
10234 if (rc)
10235 return rc;
10236
10237 ioa_cfg = pci_get_drvdata(pdev);
10238 rc = ipr_probe_ioa_part2(ioa_cfg);
10239
10240 if (rc) {
10241 __ipr_remove(pdev);
10242 return rc;
10243 }
10244
10245 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10246
10247 if (rc) {
10248 __ipr_remove(pdev);
10249 return rc;
10250 }
10251
ee959b00 10252 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10253 &ipr_trace_attr);
10254
10255 if (rc) {
10256 scsi_remove_host(ioa_cfg->host);
10257 __ipr_remove(pdev);
10258 return rc;
10259 }
10260
ee959b00 10261 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10262 &ipr_dump_attr);
10263
10264 if (rc) {
ee959b00 10265 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10266 &ipr_trace_attr);
10267 scsi_remove_host(ioa_cfg->host);
10268 __ipr_remove(pdev);
10269 return rc;
10270 }
10271
10272 scsi_scan_host(ioa_cfg->host);
b53d124a 10273 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10274
89f8b33c 10275 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10276 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10277 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
10278 ioa_cfg->iopoll_weight, ipr_iopoll);
10279 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
10280 }
10281 }
10282
1da177e4
LT		 10283 schedule_work(&ioa_cfg->work_q);
10284 return 0;
10285}
10286
10287/**
10288 * ipr_shutdown - Shutdown handler.
d18c3db5 10289 * @pdev: pci device struct
1da177e4
LT		 10290 *
10291 * This function is invoked upon system shutdown/reboot. It will issue
10292 * an adapter shutdown to the adapter to flush the write cache.
10293 *
10294 * Return value:
10295 * none
10296 **/
d18c3db5 10297static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 10298{
d18c3db5 10299 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 10300 unsigned long lock_flags = 0;
4fdd7c7a 10301 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
b53d124a 10302 int i;
1da177e4
LT		 10303
10304 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 10305 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10306 ioa_cfg->iopoll_weight = 0;
10307 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10308 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10309 }
10310
203fa3fe 10311 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10312 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10313 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10314 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10315 }
10316
4fdd7c7a
BK		 10317 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10318 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10319
10320 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
1da177e4
LT		 10321 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10322 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4fdd7c7a 10323 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
2796ca5e 10324 ipr_free_irqs(ioa_cfg);
4fdd7c7a
BK		 10325 pci_disable_device(ioa_cfg->pdev);
10326 }
1da177e4
LT		 10327}
10328
6f039790 10329static struct pci_device_id ipr_pci_table[] = {
1da177e4 10330 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10331 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10332 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10333 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10334 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10335 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10336 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10337 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10338 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10339 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10340 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10341 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10342 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10343 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10344 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10345 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10346 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10347 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10348 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10349 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10350 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10351 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10352 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10353 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10354 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10355 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10356 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10357 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10358 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10359 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10360 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10361 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10362 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10363 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10364 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10365 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10366 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10367 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10368 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10369 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10370 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10371 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10372 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10373 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10374 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10375 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10376 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10377 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10378 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10379 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10380 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10381 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10382 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10383 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10384 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10385 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10386 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10387 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10388 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10389 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10390 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10391 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10392 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10393 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10394 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10395 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10396 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10397 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10398 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10399 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10400 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10401 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10402 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10403 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10404 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10405 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10406 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10407 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10408 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10409 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10410 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10411 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10412 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10413 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10414 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10415 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10416 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10417 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10418 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10419 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10420 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10421 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10422 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10423 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10424 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10425 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10426 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10427 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10428 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10429 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10430 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10431 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10432 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10433 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10434 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
1da177e4
LT		 10435 { }
10436};
10437MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10438
a55b2d21 10439static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10440 .error_detected = ipr_pci_error_detected,
6270e593 10441 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10442 .slot_reset = ipr_pci_slot_reset,
10443};
10444
1da177e4
LT		 10445static struct pci_driver ipr_driver = {
10446 .name = IPR_NAME,
10447 .id_table = ipr_pci_table,
10448 .probe = ipr_probe,
6f039790 10449 .remove = ipr_remove,
d18c3db5 10450 .shutdown = ipr_shutdown,
f8a88b19 10451 .err_handler = &ipr_err_handler,
1da177e4
LT		 10452};
10453
f72919ec
WB		 10454/**
10455 * ipr_halt_done - Shutdown prepare completion
10456 *
10457 * Return value:
10458 * none
10459 **/
10460static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10461{
05a6538a 10462 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10463}
10464
10465/**
10466 * ipr_halt - Issue shutdown prepare to all adapters
10467 *
10468 * Return value:
10469 * NOTIFY_OK on success / NOTIFY_DONE on failure
10470 **/
10471static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10472{
10473 struct ipr_cmnd *ipr_cmd;
10474 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10475 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10476
10477 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10478 return NOTIFY_DONE;
10479
feccada9 10480 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10481
10482 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10483 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4fdd7c7a
BK		 10484 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10485 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
f72919ec
WB		 10486 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10487 continue;
10488 }
10489
10490 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10491 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10492 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10493 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10494 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10495
10496 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10497 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10498 }
feccada9 10499 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10500
10501 return NOTIFY_OK;
10502}
10503
10504static struct notifier_block ipr_notifier = {
10505 ipr_halt, NULL, 0
10506};
10507
1da177e4
LT		 10508/**
10509 * ipr_init - Module entry point
10510 *
10511 * Return value:
10512 * 0 on success / negative value on failure
10513 **/
10514static int __init ipr_init(void)
10515{
10516 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10517 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10518
f72919ec 10519 register_reboot_notifier(&ipr_notifier);
dcbccbde 10520 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10521}
10522
10523/**
10524 * ipr_exit - Module unload
10525 *
10526 * Module unload entry point.
10527 *
10528 * Return value:
10529 * none
10530 **/
10531static void __exit ipr_exit(void)
10532{
f72919ec 10533 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10534 pci_unregister_driver(&ipr_driver);
10535}
10536
10537module_init(ipr_init);
10538module_exit(ipr_exit);
Linux kernel - Deliverables
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