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ipr: Fix out-of-bounds null overwrite
[deliverable/linux.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
05a6538a 101static unsigned int ipr_number_of_msix = 2;
4fdd7c7a 102static unsigned int ipr_fast_reboot;
1da177e4
LT		 103static DEFINE_SPINLOCK(ipr_driver_lock);
104
105/* This table describes the differences between DMA controller chips */
106static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 107 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4 108 .mailbox = 0x0042C,
89aad428 109 .max_cmds = 100,
1da177e4 110 .cache_line_size = 0x20,
7dd21308 111 .clear_isr = 1,
b53d124a 112 .iopoll_weight = 0,
1da177e4
LT		 113 {
114 .set_interrupt_mask_reg = 0x0022C,
115 .clr_interrupt_mask_reg = 0x00230,
214777ba 116 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 117 .sense_interrupt_mask_reg = 0x0022C,
214777ba 118 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 119 .clr_interrupt_reg = 0x00228,
214777ba 120 .clr_interrupt_reg32 = 0x00228,
1da177e4 121 .sense_interrupt_reg = 0x00224,
214777ba 122 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 123 .ioarrin_reg = 0x00404,
124 .sense_uproc_interrupt_reg = 0x00214,
214777ba 125 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 126 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 127 .set_uproc_interrupt_reg32 = 0x00214,
128 .clr_uproc_interrupt_reg = 0x00218,
129 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 130 }
131 },
132 { /* Snipe and Scamp */
133 .mailbox = 0x0052C,
89aad428 134 .max_cmds = 100,
1da177e4 135 .cache_line_size = 0x20,
7dd21308 136 .clear_isr = 1,
b53d124a 137 .iopoll_weight = 0,
1da177e4
LT		 138 {
139 .set_interrupt_mask_reg = 0x00288,
140 .clr_interrupt_mask_reg = 0x0028C,
214777ba 141 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 142 .sense_interrupt_mask_reg = 0x00288,
214777ba 143 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 144 .clr_interrupt_reg = 0x00284,
214777ba 145 .clr_interrupt_reg32 = 0x00284,
1da177e4 146 .sense_interrupt_reg = 0x00280,
214777ba 147 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 148 .ioarrin_reg = 0x00504,
149 .sense_uproc_interrupt_reg = 0x00290,
214777ba 150 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 151 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 152 .set_uproc_interrupt_reg32 = 0x00290,
153 .clr_uproc_interrupt_reg = 0x00294,
154 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 155 }
156 },
a74c1639 157 { /* CRoC */
110def85 158 .mailbox = 0x00044,
89aad428 159 .max_cmds = 1000,
a74c1639 160 .cache_line_size = 0x20,
7dd21308 161 .clear_isr = 0,
b53d124a 162 .iopoll_weight = 64,
a74c1639
WB		 163 {
164 .set_interrupt_mask_reg = 0x00010,
165 .clr_interrupt_mask_reg = 0x00018,
214777ba 166 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 167 .sense_interrupt_mask_reg = 0x00010,
214777ba 168 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 169 .clr_interrupt_reg = 0x00008,
214777ba 170 .clr_interrupt_reg32 = 0x0000C,
a74c1639 171 .sense_interrupt_reg = 0x00000,
214777ba 172 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 173 .ioarrin_reg = 0x00070,
174 .sense_uproc_interrupt_reg = 0x00020,
214777ba 175 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 176 .set_uproc_interrupt_reg = 0x00020,
214777ba 177 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 178 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 179 .clr_uproc_interrupt_reg32 = 0x0002C,
180 .init_feedback_reg = 0x0005C,
dcbad00e 181 .dump_addr_reg = 0x00064,
8701f185
WB		 182 .dump_data_reg = 0x00068,
183 .endian_swap_reg = 0x00084
a74c1639
WB		 184 }
185 },
1da177e4
LT		 186};
187
188static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 198};
199
203fa3fe 200static int ipr_max_bus_speeds[] = {
1da177e4
LT		 201 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
202};
203
204MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
205MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
206module_param_named(max_speed, ipr_max_speed, uint, 0);
207MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
208module_param_named(log_level, ipr_log_level, uint, 0);
209MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
210module_param_named(testmode, ipr_testmode, int, 0);
211MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 212module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 213MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
214module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
215MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 216module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 217MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 218module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
219MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 220module_param_named(max_devs, ipr_max_devs, int, 0);
221MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
222 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 223module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
6634ff7c 224MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
4fdd7c7a
BK		 225module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
226MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
1da177e4
LT		 227MODULE_LICENSE("GPL");
228MODULE_VERSION(IPR_DRIVER_VERSION);
229
1da177e4
LT		 230/* A constant array of IOASCs/URCs/Error Messages */
231static const
232struct ipr_error_table_t ipr_error_table[] = {
933916f3 233 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 234 "8155: An unknown error was received"},
235 {0x00330000, 0, 0,
236 "Soft underlength error"},
237 {0x005A0000, 0, 0,
238 "Command to be cancelled not found"},
239 {0x00808000, 0, 0,
240 "Qualified success"},
933916f3 241 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 242 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 243 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 244 "4101: Soft device bus fabric error"},
5aa3a333
WB		 245 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFFC: Logical block guard error recovered by the device"},
247 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
248 "FFFC: Logical block reference tag error recovered by the device"},
249 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
250 "4171: Recovered scatter list tag / sequence number error"},
251 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
253 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
254 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
255 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
256 "FFFD: Recovered logical block reference tag error detected by the IOA"},
257 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 259 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 260 "FFF9: Device sector reassign successful"},
933916f3 261 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 262 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 263 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 264 "7001: IOA sector reassignment successful"},
933916f3 265 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 266 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 267 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 268 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 269 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 270 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 271 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 272 "FFF6: Device hardware error recovered by the IOA"},
933916f3 273 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 274 "FFF6: Device hardware error recovered by the device"},
933916f3 275 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 276 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 277 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 278 "FFFA: Undefined device response recovered by the IOA"},
933916f3 279 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 280 "FFF6: Device bus error, message or command phase"},
933916f3 281 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 282 "FFFE: Task Management Function failed"},
933916f3 283 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 284 "FFF6: Failure prediction threshold exceeded"},
933916f3 285 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 286 "8009: Impending cache battery pack failure"},
ed7bd661 287 {0x02040100, 0, 0,
288 "Logical Unit in process of becoming ready"},
289 {0x02040200, 0, 0,
290 "Initializing command required"},
1da177e4
LT		 291 {0x02040400, 0, 0,
292 "34FF: Disk device format in progress"},
ed7bd661 293 {0x02040C00, 0, 0,
294 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 295 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
296 "9070: IOA requested reset"},
1da177e4
LT		 297 {0x023F0000, 0, 0,
298 "Synchronization required"},
ed7bd661 299 {0x02408500, 0, 0,
300 "IOA microcode download required"},
301 {0x02408600, 0, 0,
302 "Device bus connection is prohibited by host"},
1da177e4
LT		 303 {0x024E0000, 0, 0,
304 "No ready, IOA shutdown"},
305 {0x025A0000, 0, 0,
306 "Not ready, IOA has been shutdown"},
933916f3 307 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 308 "3020: Storage subsystem configuration error"},
309 {0x03110B00, 0, 0,
310 "FFF5: Medium error, data unreadable, recommend reassign"},
311 {0x03110C00, 0, 0,
312 "7000: Medium error, data unreadable, do not reassign"},
933916f3 313 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 314 "FFF3: Disk media format bad"},
933916f3 315 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 316 "3002: Addressed device failed to respond to selection"},
933916f3 317 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 318 "3100: Device bus error"},
933916f3 319 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 320 "3109: IOA timed out a device command"},
321 {0x04088000, 0, 0,
322 "3120: SCSI bus is not operational"},
933916f3 323 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 324 "4100: Hard device bus fabric error"},
5aa3a333
WB		 325 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
326 "310C: Logical block guard error detected by the device"},
327 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
328 "310C: Logical block reference tag error detected by the device"},
329 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
330 "4170: Scatter list tag / sequence number error"},
331 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: Logical block CRC error on IOA to Host transfer"},
333 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
334 "4170: Logical block sequence number error on IOA to Host transfer"},
335 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "310D: Logical block reference tag error detected by the IOA"},
337 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "310D: Logical block guard error detected by the IOA"},
933916f3 339 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 340 "9000: IOA reserved area data check"},
933916f3 341 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 342 "9001: IOA reserved area invalid data pattern"},
933916f3 343 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 344 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 345 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
346 "Hardware Error, IOA metadata access error"},
933916f3 347 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 348 "102E: Out of alternate sectors for disk storage"},
933916f3 349 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 350 "FFF4: Data transfer underlength error"},
933916f3 351 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 352 "FFF4: Data transfer overlength error"},
933916f3 353 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 354 "3400: Logical unit failure"},
933916f3 355 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 356 "FFF4: Device microcode is corrupt"},
933916f3 357 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 358 "8150: PCI bus error"},
359 {0x04430000, 1, 0,
360 "Unsupported device bus message received"},
933916f3 361 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 362 "FFF4: Disk device problem"},
933916f3 363 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 364 "8150: Permanent IOA failure"},
933916f3 365 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 366 "3010: Disk device returned wrong response to IOA"},
933916f3 367 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 368 "8151: IOA microcode error"},
369 {0x04448500, 0, 0,
370 "Device bus status error"},
933916f3 371 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 372 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 373 {0x04448700, 0, 0,
374 "ATA device status error"},
1da177e4
LT		 375 {0x04490000, 0, 0,
376 "Message reject received from the device"},
933916f3 377 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 378 "8008: A permanent cache battery pack failure occurred"},
933916f3 379 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 380 "9090: Disk unit has been modified after the last known status"},
933916f3 381 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 382 "9081: IOA detected device error"},
933916f3 383 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 384 "9082: IOA detected device error"},
933916f3 385 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 386 "3110: Device bus error, message or command phase"},
933916f3 387 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 388 "3110: SAS Command / Task Management Function failed"},
933916f3 389 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 390 "9091: Incorrect hardware configuration change has been detected"},
933916f3 391 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 392 "9073: Invalid multi-adapter configuration"},
933916f3 393 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 394 "4010: Incorrect connection between cascaded expanders"},
933916f3 395 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 396 "4020: Connections exceed IOA design limits"},
933916f3 397 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 398 "4030: Incorrect multipath connection"},
933916f3 399 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 400 "4110: Unsupported enclosure function"},
ed7bd661 401 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
402 "4120: SAS cable VPD cannot be read"},
933916f3 403 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 404 "FFF4: Command to logical unit failed"},
405 {0x05240000, 1, 0,
406 "Illegal request, invalid request type or request packet"},
407 {0x05250000, 0, 0,
408 "Illegal request, invalid resource handle"},
b0df54bb 409 {0x05258000, 0, 0,
410 "Illegal request, commands not allowed to this device"},
411 {0x05258100, 0, 0,
412 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 413 {0x05258200, 0, 0,
414 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 415 {0x05260000, 0, 0,
416 "Illegal request, invalid field in parameter list"},
417 {0x05260100, 0, 0,
418 "Illegal request, parameter not supported"},
419 {0x05260200, 0, 0,
420 "Illegal request, parameter value invalid"},
421 {0x052C0000, 0, 0,
422 "Illegal request, command sequence error"},
b0df54bb 423 {0x052C8000, 1, 0,
424 "Illegal request, dual adapter support not enabled"},
ed7bd661 425 {0x052C8100, 1, 0,
426 "Illegal request, another cable connector was physically disabled"},
427 {0x054E8000, 1, 0,
428 "Illegal request, inconsistent group id/group count"},
933916f3 429 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 430 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 431 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 432 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 433 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4080: IOA exceeded maximum operating temperature"},
435 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4085: Service required"},
933916f3 437 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 438 "3140: Device bus not ready to ready transition"},
933916f3 439 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 440 "FFFB: SCSI bus was reset"},
441 {0x06290500, 0, 0,
442 "FFFE: SCSI bus transition to single ended"},
443 {0x06290600, 0, 0,
444 "FFFE: SCSI bus transition to LVD"},
933916f3 445 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 446 "FFFB: SCSI bus was reset by another initiator"},
933916f3 447 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 448 "3029: A device replacement has occurred"},
ed7bd661 449 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
450 "4102: Device bus fabric performance degradation"},
933916f3 451 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 452 "9051: IOA cache data exists for a missing or failed device"},
933916f3 453 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 454 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 455 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 456 "9025: Disk unit is not supported at its physical location"},
933916f3 457 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 458 "3020: IOA detected a SCSI bus configuration error"},
933916f3 459 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 460 "3150: SCSI bus configuration error"},
933916f3 461 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 462 "9074: Asymmetric advanced function disk configuration"},
933916f3 463 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 464 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 465 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 466 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 467 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 468 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 469 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 470 "9076: Configuration error, missing remote IOA"},
933916f3 471 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 472 "4050: Enclosure does not support a required multipath function"},
ed7bd661 473 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
474 "4121: Configuration error, required cable is missing"},
475 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
476 "4122: Cable is not plugged into the correct location on remote IOA"},
477 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "4123: Configuration error, invalid cable vital product data"},
479 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 481 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
482 "4070: Logically bad block written on device"},
933916f3 483 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 484 "9041: Array protection temporarily suspended"},
933916f3 485 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 486 "9042: Corrupt array parity detected on specified device"},
933916f3 487 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 488 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 489 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 490 "9071: Link operational transition"},
933916f3 491 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 492 "9072: Link not operational transition"},
933916f3 493 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 494 "9032: Array exposed but still protected"},
e435340c
BK		 495 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
496 "70DD: Device forced failed by disrupt device command"},
933916f3 497 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 498 "4061: Multipath redundancy level got better"},
933916f3 499 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 500 "4060: Multipath redundancy level got worse"},
f8ee25d7
WX		 501 {0x06808100, 0, IPR_DEFAULT_LOG_LEVEL,
502 "9083: Device raw mode enabled"},
503 {0x06808200, 0, IPR_DEFAULT_LOG_LEVEL,
504 "9084: Device raw mode disabled"},
1da177e4
LT		 505 {0x07270000, 0, 0,
506 "Failure due to other device"},
933916f3 507 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 508 "9008: IOA does not support functions expected by devices"},
933916f3 509 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 510 "9010: Cache data associated with attached devices cannot be found"},
933916f3 511 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 512 "9011: Cache data belongs to devices other than those attached"},
933916f3 513 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 514 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 515 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 516 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 517 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 518 "9022: Exposed array is missing a required device"},
933916f3 519 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 520 "9023: Array member(s) not at required physical locations"},
933916f3 521 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 522 "9024: Array not functional due to present hardware configuration"},
933916f3 523 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 524 "9026: Array not functional due to present hardware configuration"},
933916f3 525 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 526 "9027: Array is missing a device and parity is out of sync"},
933916f3 527 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 528 "9028: Maximum number of arrays already exist"},
933916f3 529 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 530 "9050: Required cache data cannot be located for a disk unit"},
933916f3 531 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 532 "9052: Cache data exists for a device that has been modified"},
933916f3 533 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 534 "9054: IOA resources not available due to previous problems"},
933916f3 535 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 536 "9092: Disk unit requires initialization before use"},
933916f3 537 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 538 "9029: Incorrect hardware configuration change has been detected"},
933916f3 539 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 540 "9060: One or more disk pairs are missing from an array"},
933916f3 541 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 542 "9061: One or more disks are missing from an array"},
933916f3 543 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 544 "9062: One or more disks are missing from an array"},
933916f3 545 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 546 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 547 {0x07279A00, 0, 0,
548 "Data protect, other volume set problem"},
1da177e4
LT		 549 {0x0B260000, 0, 0,
550 "Aborted command, invalid descriptor"},
ed7bd661 551 {0x0B3F9000, 0, 0,
552 "Target operating conditions have changed, dual adapter takeover"},
553 {0x0B530200, 0, 0,
554 "Aborted command, medium removal prevented"},
1da177e4 555 {0x0B5A0000, 0, 0,
ed7bd661 556 "Command terminated by host"},
557 {0x0B5B8000, 0, 0,
558 "Aborted command, command terminated by host"}
1da177e4
LT		 559};
560
561static const struct ipr_ses_table_entry ipr_ses_table[] = {
562 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
563 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
565 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
566 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
567 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
568 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
569 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
571 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
573 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
574 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
575};
576
577/*
578 * Function Prototypes
579 */
580static int ipr_reset_alert(struct ipr_cmnd *);
581static void ipr_process_ccn(struct ipr_cmnd *);
582static void ipr_process_error(struct ipr_cmnd *);
583static void ipr_reset_ioa_job(struct ipr_cmnd *);
584static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
585 enum ipr_shutdown_type);
586
587#ifdef CONFIG_SCSI_IPR_TRACE
588/**
589 * ipr_trc_hook - Add a trace entry to the driver trace
590 * @ipr_cmd: ipr command struct
591 * @type: trace type
592 * @add_data: additional data
593 *
594 * Return value:
595 * none
596 **/
597static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
598 u8 type, u32 add_data)
599{
600 struct ipr_trace_entry *trace_entry;
601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
bb7c5433 602 unsigned int trace_index;
1da177e4 603
bb7c5433
BK		 604 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
605 trace_entry = &ioa_cfg->trace[trace_index];
1da177e4
LT		 606 trace_entry->time = jiffies;
607 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
608 trace_entry->type = type;
a32c055f
WB		 609 if (ipr_cmd->ioa_cfg->sis64)
610 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
611 else
612 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 613 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 614 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
615 trace_entry->u.add_data = add_data;
56d6aa33 616 wmb();
1da177e4
LT		 617}
618#else
203fa3fe 619#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 620#endif
621
172cd6e1
BK		 622/**
623 * ipr_lock_and_done - Acquire lock and complete command
624 * @ipr_cmd: ipr command struct
625 *
626 * Return value:
627 * none
628 **/
629static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
630{
631 unsigned long lock_flags;
632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
633
634 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
635 ipr_cmd->done(ipr_cmd);
636 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
637}
638
1da177e4
LT		 639/**
640 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
641 * @ipr_cmd: ipr command struct
642 *
643 * Return value:
644 * none
645 **/
646static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
647{
648 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 649 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
650 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 651 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 652 int hrrq_id;
1da177e4 653
05a6538a 654 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 655 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 656 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 657 ioarcb->data_transfer_length = 0;
1da177e4 658 ioarcb->read_data_transfer_length = 0;
a32c055f 659 ioarcb->ioadl_len = 0;
1da177e4 660 ioarcb->read_ioadl_len = 0;
a32c055f 661
96d21f00 662 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 663 ioarcb->u.sis64_addr_data.data_ioadl_addr =
664 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 665 ioasa64->u.gata.status = 0;
666 } else {
a32c055f
WB		 667 ioarcb->write_ioadl_addr =
668 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
669 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 670 ioasa->u.gata.status = 0;
a32c055f
WB		 671 }
672
96d21f00
WB		 673 ioasa->hdr.ioasc = 0;
674 ioasa->hdr.residual_data_len = 0;
1da177e4 675 ipr_cmd->scsi_cmd = NULL;
35a39691 676 ipr_cmd->qc = NULL;
1da177e4
LT		 677 ipr_cmd->sense_buffer[0] = 0;
678 ipr_cmd->dma_use_sg = 0;
679}
680
681/**
682 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
683 * @ipr_cmd: ipr command struct
684 *
685 * Return value:
686 * none
687 **/
172cd6e1
BK		 688static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
689 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 690{
691 ipr_reinit_ipr_cmnd(ipr_cmd);
692 ipr_cmd->u.scratch = 0;
693 ipr_cmd->sibling = NULL;
6cdb0817 694 ipr_cmd->eh_comp = NULL;
172cd6e1 695 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 696 init_timer(&ipr_cmd->timer);
697}
698
699/**
00bfef2c 700 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 701 * @ioa_cfg: ioa config struct
702 *
703 * Return value:
704 * pointer to ipr command struct
705 **/
706static
05a6538a 707struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 708{
05a6538a 709 struct ipr_cmnd *ipr_cmd = NULL;
710
711 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
712 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
713 struct ipr_cmnd, queue);
714 list_del(&ipr_cmd->queue);
715 }
1da177e4 716
1da177e4
LT		 717
718 return ipr_cmd;
719}
720
00bfef2c
BK		 721/**
722 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
723 * @ioa_cfg: ioa config struct
724 *
725 * Return value:
726 * pointer to ipr command struct
727 **/
728static
729struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
730{
05a6538a 731 struct ipr_cmnd *ipr_cmd =
732 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 733 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 734 return ipr_cmd;
735}
736
1da177e4
LT		 737/**
738 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
739 * @ioa_cfg: ioa config struct
740 * @clr_ints: interrupts to clear
741 *
742 * This function masks all interrupts on the adapter, then clears the
743 * interrupts specified in the mask
744 *
745 * Return value:
746 * none
747 **/
748static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
749 u32 clr_ints)
750{
751 volatile u32 int_reg;
56d6aa33 752 int i;
1da177e4
LT		 753
754 /* Stop new interrupts */
56d6aa33 755 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
756 spin_lock(&ioa_cfg->hrrq[i]._lock);
757 ioa_cfg->hrrq[i].allow_interrupts = 0;
758 spin_unlock(&ioa_cfg->hrrq[i]._lock);
759 }
760 wmb();
1da177e4
LT		 761
762 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 763 if (ioa_cfg->sis64)
764 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
765 else
766 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 767
768 /* Clear any pending interrupts */
214777ba
WB		 769 if (ioa_cfg->sis64)
770 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
771 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 772 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
773}
774
775/**
776 * ipr_save_pcix_cmd_reg - Save PCI-X command register
777 * @ioa_cfg: ioa config struct
778 *
779 * Return value:
780 * 0 on success / -EIO on failure
781 **/
782static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
783{
784 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
785
7dce0e1c
BK		 786 if (pcix_cmd_reg == 0)
787 return 0;
1da177e4
LT		 788
789 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
790 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
791 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
792 return -EIO;
793 }
794
795 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
796 return 0;
797}
798
799/**
800 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
801 * @ioa_cfg: ioa config struct
802 *
803 * Return value:
804 * 0 on success / -EIO on failure
805 **/
806static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
807{
808 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
809
810 if (pcix_cmd_reg) {
811 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
812 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
813 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
814 return -EIO;
815 }
1da177e4
LT		 816 }
817
818 return 0;
819}
820
35a39691
BK		 821/**
822 * ipr_sata_eh_done - done function for aborted SATA commands
823 * @ipr_cmd: ipr command struct
824 *
825 * This function is invoked for ops generated to SATA
826 * devices which are being aborted.
827 *
828 * Return value:
829 * none
830 **/
831static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
832{
35a39691
BK		 833 struct ata_queued_cmd *qc = ipr_cmd->qc;
834 struct ipr_sata_port *sata_port = qc->ap->private_data;
835
836 qc->err_mask |= AC_ERR_OTHER;
837 sata_port->ioasa.status |= ATA_BUSY;
05a6538a 838 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 839 ata_qc_complete(qc);
840}
841
1da177e4
LT		 842/**
843 * ipr_scsi_eh_done - mid-layer done function for aborted ops
844 * @ipr_cmd: ipr command struct
845 *
846 * This function is invoked by the interrupt handler for
847 * ops generated by the SCSI mid-layer which are being aborted.
848 *
849 * Return value:
850 * none
851 **/
852static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
853{
1da177e4
LT		 854 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
855
856 scsi_cmd->result |= (DID_ERROR << 16);
857
63015bc9 858 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 859 scsi_cmd->scsi_done(scsi_cmd);
6cdb0817
BK		 860 if (ipr_cmd->eh_comp)
861 complete(ipr_cmd->eh_comp);
05a6538a 862 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 863}
864
865/**
866 * ipr_fail_all_ops - Fails all outstanding ops.
867 * @ioa_cfg: ioa config struct
868 *
869 * This function fails all outstanding ops.
870 *
871 * Return value:
872 * none
873 **/
874static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
875{
876 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 877 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 878
879 ENTER;
05a6538a 880 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 881 spin_lock(&hrrq->_lock);
05a6538a 882 list_for_each_entry_safe(ipr_cmd,
883 temp, &hrrq->hrrq_pending_q, queue) {
884 list_del(&ipr_cmd->queue);
1da177e4 885
05a6538a 886 ipr_cmd->s.ioasa.hdr.ioasc =
887 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
888 ipr_cmd->s.ioasa.hdr.ilid =
889 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 890
05a6538a 891 if (ipr_cmd->scsi_cmd)
892 ipr_cmd->done = ipr_scsi_eh_done;
893 else if (ipr_cmd->qc)
894 ipr_cmd->done = ipr_sata_eh_done;
1da177e4 895
05a6538a 896 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
897 IPR_IOASC_IOA_WAS_RESET);
898 del_timer(&ipr_cmd->timer);
899 ipr_cmd->done(ipr_cmd);
900 }
56d6aa33 901 spin_unlock(&hrrq->_lock);
1da177e4 902 }
1da177e4
LT		 903 LEAVE;
904}
905
a32c055f
WB		 906/**
907 * ipr_send_command - Send driver initiated requests.
908 * @ipr_cmd: ipr command struct
909 *
910 * This function sends a command to the adapter using the correct write call.
911 * In the case of sis64, calculate the ioarcb size required. Then or in the
912 * appropriate bits.
913 *
914 * Return value:
915 * none
916 **/
917static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
918{
919 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
920 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
921
922 if (ioa_cfg->sis64) {
923 /* The default size is 256 bytes */
924 send_dma_addr |= 0x1;
925
926 /* If the number of ioadls * size of ioadl > 128 bytes,
927 then use a 512 byte ioarcb */
928 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
929 send_dma_addr |= 0x4;
930 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
931 } else
932 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
933}
934
1da177e4
LT		 935/**
936 * ipr_do_req - Send driver initiated requests.
937 * @ipr_cmd: ipr command struct
938 * @done: done function
939 * @timeout_func: timeout function
940 * @timeout: timeout value
941 *
942 * This function sends the specified command to the adapter with the
943 * timeout given. The done function is invoked on command completion.
944 *
945 * Return value:
946 * none
947 **/
948static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
949 void (*done) (struct ipr_cmnd *),
950 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
951{
05a6538a 952 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 953
954 ipr_cmd->done = done;
955
956 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
957 ipr_cmd->timer.expires = jiffies + timeout;
958 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
959
960 add_timer(&ipr_cmd->timer);
961
962 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
963
a32c055f 964 ipr_send_command(ipr_cmd);
1da177e4
LT		 965}
966
967/**
968 * ipr_internal_cmd_done - Op done function for an internally generated op.
969 * @ipr_cmd: ipr command struct
970 *
971 * This function is the op done function for an internally generated,
972 * blocking op. It simply wakes the sleeping thread.
973 *
974 * Return value:
975 * none
976 **/
977static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
978{
979 if (ipr_cmd->sibling)
980 ipr_cmd->sibling = NULL;
981 else
982 complete(&ipr_cmd->completion);
983}
984
a32c055f
WB		 985/**
986 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
987 * @ipr_cmd: ipr command struct
988 * @dma_addr: dma address
989 * @len: transfer length
990 * @flags: ioadl flag value
991 *
992 * This function initializes an ioadl in the case where there is only a single
993 * descriptor.
994 *
995 * Return value:
996 * nothing
997 **/
998static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
999 u32 len, int flags)
1000{
1001 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1002 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1003
1004 ipr_cmd->dma_use_sg = 1;
1005
1006 if (ipr_cmd->ioa_cfg->sis64) {
1007 ioadl64->flags = cpu_to_be32(flags);
1008 ioadl64->data_len = cpu_to_be32(len);
1009 ioadl64->address = cpu_to_be64(dma_addr);
1010
1011 ipr_cmd->ioarcb.ioadl_len =
1012 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1013 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1014 } else {
1015 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1016 ioadl->address = cpu_to_be32(dma_addr);
1017
1018 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1019 ipr_cmd->ioarcb.read_ioadl_len =
1020 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1021 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1022 } else {
1023 ipr_cmd->ioarcb.ioadl_len =
1024 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1025 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1026 }
1027 }
1028}
1029
1da177e4
LT		 1030/**
1031 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1032 * @ipr_cmd: ipr command struct
1033 * @timeout_func: function to invoke if command times out
1034 * @timeout: timeout
1035 *
1036 * Return value:
1037 * none
1038 **/
1039static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1040 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1041 u32 timeout)
1042{
1043 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1044
1045 init_completion(&ipr_cmd->completion);
1046 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1047
1048 spin_unlock_irq(ioa_cfg->host->host_lock);
1049 wait_for_completion(&ipr_cmd->completion);
1050 spin_lock_irq(ioa_cfg->host->host_lock);
1051}
1052
05a6538a 1053static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1054{
3f1c0581
BK		 1055 unsigned int hrrq;
1056
05a6538a 1057 if (ioa_cfg->hrrq_num == 1)
3f1c0581
BK		 1058 hrrq = 0;
1059 else {
1060 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1061 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1062 }
1063 return hrrq;
05a6538a 1064}
1065
1da177e4
LT		 1066/**
1067 * ipr_send_hcam - Send an HCAM to the adapter.
1068 * @ioa_cfg: ioa config struct
1069 * @type: HCAM type
1070 * @hostrcb: hostrcb struct
1071 *
1072 * This function will send a Host Controlled Async command to the adapter.
1073 * If HCAMs are currently not allowed to be issued to the adapter, it will
1074 * place the hostrcb on the free queue.
1075 *
1076 * Return value:
1077 * none
1078 **/
1079static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1080 struct ipr_hostrcb *hostrcb)
1081{
1082 struct ipr_cmnd *ipr_cmd;
1083 struct ipr_ioarcb *ioarcb;
1084
56d6aa33 1085 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1086 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1087 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1088 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1089
1090 ipr_cmd->u.hostrcb = hostrcb;
1091 ioarcb = &ipr_cmd->ioarcb;
1092
1093 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1094 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1095 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1096 ioarcb->cmd_pkt.cdb[1] = type;
1097 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1098 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1099
a32c055f
WB		 1100 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1101 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1102
1103 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1104 ipr_cmd->done = ipr_process_ccn;
1105 else
1106 ipr_cmd->done = ipr_process_error;
1107
1108 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1109
a32c055f 1110 ipr_send_command(ipr_cmd);
1da177e4
LT		 1111 } else {
1112 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1113 }
1114}
1115
3e7ebdfa
WB		 1116/**
1117 * ipr_update_ata_class - Update the ata class in the resource entry
1118 * @res: resource entry struct
1119 * @proto: cfgte device bus protocol value
1120 *
1121 * Return value:
1122 * none
1123 **/
1124static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1125{
203fa3fe 1126 switch (proto) {
3e7ebdfa
WB		 1127 case IPR_PROTO_SATA:
1128 case IPR_PROTO_SAS_STP:
1129 res->ata_class = ATA_DEV_ATA;
1130 break;
1131 case IPR_PROTO_SATA_ATAPI:
1132 case IPR_PROTO_SAS_STP_ATAPI:
1133 res->ata_class = ATA_DEV_ATAPI;
1134 break;
1135 default:
1136 res->ata_class = ATA_DEV_UNKNOWN;
1137 break;
1138 };
1139}
1140
1da177e4
LT		 1141/**
1142 * ipr_init_res_entry - Initialize a resource entry struct.
1143 * @res: resource entry struct
3e7ebdfa 1144 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1145 *
1146 * Return value:
1147 * none
1148 **/
3e7ebdfa
WB		 1149static void ipr_init_res_entry(struct ipr_resource_entry *res,
1150 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1151{
3e7ebdfa
WB		 1152 int found = 0;
1153 unsigned int proto;
1154 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1155 struct ipr_resource_entry *gscsi_res = NULL;
1156
ee0a90fa 1157 res->needs_sync_complete = 0;
1da177e4
LT		 1158 res->in_erp = 0;
1159 res->add_to_ml = 0;
1160 res->del_from_ml = 0;
1161 res->resetting_device = 0;
0b1f8d44 1162 res->reset_occurred = 0;
1da177e4 1163 res->sdev = NULL;
35a39691 1164 res->sata_port = NULL;
3e7ebdfa
WB		 1165
1166 if (ioa_cfg->sis64) {
1167 proto = cfgtew->u.cfgte64->proto;
359d96e7
BK		 1168 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1169 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
3e7ebdfa 1170 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1171 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1172
1173 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1174 sizeof(res->res_path));
1175
1176 res->bus = 0;
0cb992ed
WB		 1177 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1178 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1179 res->lun = scsilun_to_int(&res->dev_lun);
1180
1181 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1182 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1183 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1184 found = 1;
1185 res->target = gscsi_res->target;
1186 break;
1187 }
1188 }
1189 if (!found) {
1190 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1191 ioa_cfg->max_devs_supported);
1192 set_bit(res->target, ioa_cfg->target_ids);
1193 }
3e7ebdfa
WB		 1194 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1195 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1196 res->target = 0;
1197 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1198 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1199 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1200 ioa_cfg->max_devs_supported);
1201 set_bit(res->target, ioa_cfg->array_ids);
1202 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1203 res->bus = IPR_VSET_VIRTUAL_BUS;
1204 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1205 ioa_cfg->max_devs_supported);
1206 set_bit(res->target, ioa_cfg->vset_ids);
1207 } else {
1208 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1209 ioa_cfg->max_devs_supported);
1210 set_bit(res->target, ioa_cfg->target_ids);
1211 }
1212 } else {
1213 proto = cfgtew->u.cfgte->proto;
1214 res->qmodel = IPR_QUEUEING_MODEL(res);
1215 res->flags = cfgtew->u.cfgte->flags;
1216 if (res->flags & IPR_IS_IOA_RESOURCE)
1217 res->type = IPR_RES_TYPE_IOAFP;
1218 else
1219 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1220
1221 res->bus = cfgtew->u.cfgte->res_addr.bus;
1222 res->target = cfgtew->u.cfgte->res_addr.target;
1223 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1224 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1225 }
1226
1227 ipr_update_ata_class(res, proto);
1228}
1229
1230/**
1231 * ipr_is_same_device - Determine if two devices are the same.
1232 * @res: resource entry struct
1233 * @cfgtew: config table entry wrapper struct
1234 *
1235 * Return value:
1236 * 1 if the devices are the same / 0 otherwise
1237 **/
1238static int ipr_is_same_device(struct ipr_resource_entry *res,
1239 struct ipr_config_table_entry_wrapper *cfgtew)
1240{
1241 if (res->ioa_cfg->sis64) {
1242 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1243 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1244 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1245 sizeof(cfgtew->u.cfgte64->lun))) {
1246 return 1;
1247 }
1248 } else {
1249 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1250 res->target == cfgtew->u.cfgte->res_addr.target &&
1251 res->lun == cfgtew->u.cfgte->res_addr.lun)
1252 return 1;
1253 }
1254
1255 return 0;
1256}
1257
1258/**
b3b3b407 1259 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1260 * @res_path: resource path
1261 * @buf: buffer
b3b3b407 1262 * @len: length of buffer provided
3e7ebdfa
WB		 1263 *
1264 * Return value:
1265 * pointer to buffer
1266 **/
b3b3b407 1267static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1268{
1269 int i;
5adcbeb3 1270 char *p = buffer;
3e7ebdfa 1271
46d74563 1272 *p = '\0';
5adcbeb3
WB		 1273 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1274 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1275 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1276
1277 return buffer;
1278}
1279
b3b3b407
BK		 1280/**
1281 * ipr_format_res_path - Format the resource path for printing.
1282 * @ioa_cfg: ioa config struct
1283 * @res_path: resource path
1284 * @buf: buffer
1285 * @len: length of buffer provided
1286 *
1287 * Return value:
1288 * pointer to buffer
1289 **/
1290static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1291 u8 *res_path, char *buffer, int len)
1292{
1293 char *p = buffer;
1294
1295 *p = '\0';
1296 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1297 __ipr_format_res_path(res_path, p, len - (buffer - p));
1298 return buffer;
1299}
1300
3e7ebdfa
WB		 1301/**
1302 * ipr_update_res_entry - Update the resource entry.
1303 * @res: resource entry struct
1304 * @cfgtew: config table entry wrapper struct
1305 *
1306 * Return value:
1307 * none
1308 **/
1309static void ipr_update_res_entry(struct ipr_resource_entry *res,
1310 struct ipr_config_table_entry_wrapper *cfgtew)
1311{
1312 char buffer[IPR_MAX_RES_PATH_LENGTH];
1313 unsigned int proto;
1314 int new_path = 0;
1315
1316 if (res->ioa_cfg->sis64) {
359d96e7
BK		 1317 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1318 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
75576bb9 1319 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1320
1321 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1322 sizeof(struct ipr_std_inq_data));
1323
1324 res->qmodel = IPR_QUEUEING_MODEL64(res);
1325 proto = cfgtew->u.cfgte64->proto;
1326 res->res_handle = cfgtew->u.cfgte64->res_handle;
1327 res->dev_id = cfgtew->u.cfgte64->dev_id;
1328
1329 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1330 sizeof(res->dev_lun.scsi_lun));
1331
1332 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1333 sizeof(res->res_path))) {
1334 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1335 sizeof(res->res_path));
1336 new_path = 1;
1337 }
1338
1339 if (res->sdev && new_path)
1340 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1341 ipr_format_res_path(res->ioa_cfg,
1342 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1343 } else {
1344 res->flags = cfgtew->u.cfgte->flags;
1345 if (res->flags & IPR_IS_IOA_RESOURCE)
1346 res->type = IPR_RES_TYPE_IOAFP;
1347 else
1348 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1349
1350 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1351 sizeof(struct ipr_std_inq_data));
1352
1353 res->qmodel = IPR_QUEUEING_MODEL(res);
1354 proto = cfgtew->u.cfgte->proto;
1355 res->res_handle = cfgtew->u.cfgte->res_handle;
1356 }
1357
1358 ipr_update_ata_class(res, proto);
1359}
1360
1361/**
1362 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1363 * for the resource.
1364 * @res: resource entry struct
1365 * @cfgtew: config table entry wrapper struct
1366 *
1367 * Return value:
1368 * none
1369 **/
1370static void ipr_clear_res_target(struct ipr_resource_entry *res)
1371{
1372 struct ipr_resource_entry *gscsi_res = NULL;
1373 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1374
1375 if (!ioa_cfg->sis64)
1376 return;
1377
1378 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1379 clear_bit(res->target, ioa_cfg->array_ids);
1380 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1381 clear_bit(res->target, ioa_cfg->vset_ids);
1382 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1383 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1384 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1385 return;
1386 clear_bit(res->target, ioa_cfg->target_ids);
1387
1388 } else if (res->bus == 0)
1389 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1390}
1391
1392/**
1393 * ipr_handle_config_change - Handle a config change from the adapter
1394 * @ioa_cfg: ioa config struct
1395 * @hostrcb: hostrcb
1396 *
1397 * Return value:
1398 * none
1399 **/
1400static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1401 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1402{
1403 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1404 struct ipr_config_table_entry_wrapper cfgtew;
1405 __be32 cc_res_handle;
1406
1da177e4
LT		 1407 u32 is_ndn = 1;
1408
3e7ebdfa
WB		 1409 if (ioa_cfg->sis64) {
1410 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1411 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1412 } else {
1413 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1414 cc_res_handle = cfgtew.u.cfgte->res_handle;
1415 }
1da177e4
LT		 1416
1417 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1418 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1419 is_ndn = 0;
1420 break;
1421 }
1422 }
1423
1424 if (is_ndn) {
1425 if (list_empty(&ioa_cfg->free_res_q)) {
1426 ipr_send_hcam(ioa_cfg,
1427 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1428 hostrcb);
1429 return;
1430 }
1431
1432 res = list_entry(ioa_cfg->free_res_q.next,
1433 struct ipr_resource_entry, queue);
1434
1435 list_del(&res->queue);
3e7ebdfa 1436 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1437 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1438 }
1439
3e7ebdfa 1440 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1441
1442 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1443 if (res->sdev) {
1da177e4 1444 res->del_from_ml = 1;
3e7ebdfa 1445 res->res_handle = IPR_INVALID_RES_HANDLE;
f688f96d 1446 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1447 } else {
1448 ipr_clear_res_target(res);
1da177e4 1449 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1450 }
5767a1c4 1451 } else if (!res->sdev || res->del_from_ml) {
1da177e4 1452 res->add_to_ml = 1;
f688f96d 1453 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 1454 }
1455
1456 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1457}
1458
1459/**
1460 * ipr_process_ccn - Op done function for a CCN.
1461 * @ipr_cmd: ipr command struct
1462 *
1463 * This function is the op done function for a configuration
1464 * change notification host controlled async from the adapter.
1465 *
1466 * Return value:
1467 * none
1468 **/
1469static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1470{
1471 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1472 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1473 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1474
1475 list_del(&hostrcb->queue);
05a6538a 1476 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1477
1478 if (ioasc) {
4fdd7c7a
BK		 1479 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1480 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1da177e4
LT		 1481 dev_err(&ioa_cfg->pdev->dev,
1482 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1483
1484 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1485 } else {
1486 ipr_handle_config_change(ioa_cfg, hostrcb);
1487 }
1488}
1489
8cf093e2
BK		 1490/**
1491 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1492 * @i: index into buffer
1493 * @buf: string to modify
1494 *
1495 * This function will strip all trailing whitespace, pad the end
1496 * of the string with a single space, and NULL terminate the string.
1497 *
1498 * Return value:
1499 * new length of string
1500 **/
1501static int strip_and_pad_whitespace(int i, char *buf)
1502{
1503 while (i && buf[i] == ' ')
1504 i--;
1505 buf[i+1] = ' ';
1506 buf[i+2] = '\0';
1507 return i + 2;
1508}
1509
1510/**
1511 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1512 * @prefix: string to print at start of printk
1513 * @hostrcb: hostrcb pointer
1514 * @vpd: vendor/product id/sn struct
1515 *
1516 * Return value:
1517 * none
1518 **/
1519static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1520 struct ipr_vpd *vpd)
1521{
1522 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1523 int i = 0;
1524
1525 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1526 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1527
1528 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1529 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1530
1531 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1532 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1533
1534 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1535}
1536
1da177e4
LT		 1537/**
1538 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1539 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1540 *
1541 * Return value:
1542 * none
1543 **/
cfc32139 1544static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1545{
1546 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1547 + IPR_SERIAL_NUM_LEN];
1548
cfc32139 1549 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1550 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1551 IPR_PROD_ID_LEN);
1552 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1553 ipr_err("Vendor/Product ID: %s\n", buffer);
1554
cfc32139 1555 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1556 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1557 ipr_err(" Serial Number: %s\n", buffer);
1558}
1559
8cf093e2
BK		 1560/**
1561 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1562 * @prefix: string to print at start of printk
1563 * @hostrcb: hostrcb pointer
1564 * @vpd: vendor/product id/sn/wwn struct
1565 *
1566 * Return value:
1567 * none
1568 **/
1569static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1570 struct ipr_ext_vpd *vpd)
1571{
1572 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1573 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1574 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1575}
1576
ee0f05b8 1577/**
1578 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1579 * @vpd: vendor/product id/sn/wwn struct
1580 *
1581 * Return value:
1582 * none
1583 **/
1584static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1585{
1586 ipr_log_vpd(&vpd->vpd);
1587 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1588 be32_to_cpu(vpd->wwid[1]));
1589}
1590
1591/**
1592 * ipr_log_enhanced_cache_error - Log a cache error.
1593 * @ioa_cfg: ioa config struct
1594 * @hostrcb: hostrcb struct
1595 *
1596 * Return value:
1597 * none
1598 **/
1599static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1600 struct ipr_hostrcb *hostrcb)
1601{
4565e370
WB		 1602 struct ipr_hostrcb_type_12_error *error;
1603
1604 if (ioa_cfg->sis64)
1605 error = &hostrcb->hcam.u.error64.u.type_12_error;
1606 else
1607 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8 1608
1609 ipr_err("-----Current Configuration-----\n");
1610 ipr_err("Cache Directory Card Information:\n");
1611 ipr_log_ext_vpd(&error->ioa_vpd);
1612 ipr_err("Adapter Card Information:\n");
1613 ipr_log_ext_vpd(&error->cfc_vpd);
1614
1615 ipr_err("-----Expected Configuration-----\n");
1616 ipr_err("Cache Directory Card Information:\n");
1617 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1618 ipr_err("Adapter Card Information:\n");
1619 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1620
1621 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1622 be32_to_cpu(error->ioa_data[0]),
1623 be32_to_cpu(error->ioa_data[1]),
1624 be32_to_cpu(error->ioa_data[2]));
1625}
1626
1da177e4
LT		 1627/**
1628 * ipr_log_cache_error - Log a cache error.
1629 * @ioa_cfg: ioa config struct
1630 * @hostrcb: hostrcb struct
1631 *
1632 * Return value:
1633 * none
1634 **/
1635static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1636 struct ipr_hostrcb *hostrcb)
1637{
1638 struct ipr_hostrcb_type_02_error *error =
1639 &hostrcb->hcam.u.error.u.type_02_error;
1640
1641 ipr_err("-----Current Configuration-----\n");
1642 ipr_err("Cache Directory Card Information:\n");
cfc32139 1643 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1644 ipr_err("Adapter Card Information:\n");
cfc32139 1645 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1646
1647 ipr_err("-----Expected Configuration-----\n");
1648 ipr_err("Cache Directory Card Information:\n");
cfc32139 1649 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1650 ipr_err("Adapter Card Information:\n");
cfc32139 1651 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1652
1653 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1654 be32_to_cpu(error->ioa_data[0]),
1655 be32_to_cpu(error->ioa_data[1]),
1656 be32_to_cpu(error->ioa_data[2]));
1657}
1658
ee0f05b8 1659/**
1660 * ipr_log_enhanced_config_error - Log a configuration error.
1661 * @ioa_cfg: ioa config struct
1662 * @hostrcb: hostrcb struct
1663 *
1664 * Return value:
1665 * none
1666 **/
1667static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1668 struct ipr_hostrcb *hostrcb)
1669{
1670 int errors_logged, i;
1671 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1672 struct ipr_hostrcb_type_13_error *error;
1673
1674 error = &hostrcb->hcam.u.error.u.type_13_error;
1675 errors_logged = be32_to_cpu(error->errors_logged);
1676
1677 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1678 be32_to_cpu(error->errors_detected), errors_logged);
1679
1680 dev_entry = error->dev;
1681
1682 for (i = 0; i < errors_logged; i++, dev_entry++) {
1683 ipr_err_separator;
1684
1685 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1686 ipr_log_ext_vpd(&dev_entry->vpd);
1687
1688 ipr_err("-----New Device Information-----\n");
1689 ipr_log_ext_vpd(&dev_entry->new_vpd);
1690
1691 ipr_err("Cache Directory Card Information:\n");
1692 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1693
1694 ipr_err("Adapter Card Information:\n");
1695 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1696 }
1697}
1698
4565e370
WB		 1699/**
1700 * ipr_log_sis64_config_error - Log a device error.
1701 * @ioa_cfg: ioa config struct
1702 * @hostrcb: hostrcb struct
1703 *
1704 * Return value:
1705 * none
1706 **/
1707static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1708 struct ipr_hostrcb *hostrcb)
1709{
1710 int errors_logged, i;
1711 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1712 struct ipr_hostrcb_type_23_error *error;
1713 char buffer[IPR_MAX_RES_PATH_LENGTH];
1714
1715 error = &hostrcb->hcam.u.error64.u.type_23_error;
1716 errors_logged = be32_to_cpu(error->errors_logged);
1717
1718 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1719 be32_to_cpu(error->errors_detected), errors_logged);
1720
1721 dev_entry = error->dev;
1722
1723 for (i = 0; i < errors_logged; i++, dev_entry++) {
1724 ipr_err_separator;
1725
1726 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1727 __ipr_format_res_path(dev_entry->res_path,
1728 buffer, sizeof(buffer)));
4565e370
WB		 1729 ipr_log_ext_vpd(&dev_entry->vpd);
1730
1731 ipr_err("-----New Device Information-----\n");
1732 ipr_log_ext_vpd(&dev_entry->new_vpd);
1733
1734 ipr_err("Cache Directory Card Information:\n");
1735 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1736
1737 ipr_err("Adapter Card Information:\n");
1738 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1739 }
1740}
1741
1da177e4
LT		 1742/**
1743 * ipr_log_config_error - Log a configuration error.
1744 * @ioa_cfg: ioa config struct
1745 * @hostrcb: hostrcb struct
1746 *
1747 * Return value:
1748 * none
1749 **/
1750static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1751 struct ipr_hostrcb *hostrcb)
1752{
1753 int errors_logged, i;
1754 struct ipr_hostrcb_device_data_entry *dev_entry;
1755 struct ipr_hostrcb_type_03_error *error;
1756
1757 error = &hostrcb->hcam.u.error.u.type_03_error;
1758 errors_logged = be32_to_cpu(error->errors_logged);
1759
1760 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1761 be32_to_cpu(error->errors_detected), errors_logged);
1762
cfc32139 1763 dev_entry = error->dev;
1da177e4
LT		 1764
1765 for (i = 0; i < errors_logged; i++, dev_entry++) {
1766 ipr_err_separator;
1767
fa15b1f6 1768 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1769 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1770
1771 ipr_err("-----New Device Information-----\n");
cfc32139 1772 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1773
1774 ipr_err("Cache Directory Card Information:\n");
cfc32139 1775 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1776
1777 ipr_err("Adapter Card Information:\n");
cfc32139 1778 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1779
1780 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1781 be32_to_cpu(dev_entry->ioa_data[0]),
1782 be32_to_cpu(dev_entry->ioa_data[1]),
1783 be32_to_cpu(dev_entry->ioa_data[2]),
1784 be32_to_cpu(dev_entry->ioa_data[3]),
1785 be32_to_cpu(dev_entry->ioa_data[4]));
1786 }
1787}
1788
ee0f05b8 1789/**
1790 * ipr_log_enhanced_array_error - Log an array configuration error.
1791 * @ioa_cfg: ioa config struct
1792 * @hostrcb: hostrcb struct
1793 *
1794 * Return value:
1795 * none
1796 **/
1797static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1798 struct ipr_hostrcb *hostrcb)
1799{
1800 int i, num_entries;
1801 struct ipr_hostrcb_type_14_error *error;
1802 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1803 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1804
1805 error = &hostrcb->hcam.u.error.u.type_14_error;
1806
1807 ipr_err_separator;
1808
1809 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1810 error->protection_level,
1811 ioa_cfg->host->host_no,
1812 error->last_func_vset_res_addr.bus,
1813 error->last_func_vset_res_addr.target,
1814 error->last_func_vset_res_addr.lun);
1815
1816 ipr_err_separator;
1817
1818 array_entry = error->array_member;
1819 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1820 ARRAY_SIZE(error->array_member));
ee0f05b8 1821
1822 for (i = 0; i < num_entries; i++, array_entry++) {
1823 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1824 continue;
1825
1826 if (be32_to_cpu(error->exposed_mode_adn) == i)
1827 ipr_err("Exposed Array Member %d:\n", i);
1828 else
1829 ipr_err("Array Member %d:\n", i);
1830
1831 ipr_log_ext_vpd(&array_entry->vpd);
1832 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1833 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1834 "Expected Location");
1835
1836 ipr_err_separator;
1837 }
1838}
1839
1da177e4
LT		 1840/**
1841 * ipr_log_array_error - Log an array configuration error.
1842 * @ioa_cfg: ioa config struct
1843 * @hostrcb: hostrcb struct
1844 *
1845 * Return value:
1846 * none
1847 **/
1848static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1849 struct ipr_hostrcb *hostrcb)
1850{
1851 int i;
1852 struct ipr_hostrcb_type_04_error *error;
1853 struct ipr_hostrcb_array_data_entry *array_entry;
1854 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1855
1856 error = &hostrcb->hcam.u.error.u.type_04_error;
1857
1858 ipr_err_separator;
1859
1860 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1861 error->protection_level,
1862 ioa_cfg->host->host_no,
1863 error->last_func_vset_res_addr.bus,
1864 error->last_func_vset_res_addr.target,
1865 error->last_func_vset_res_addr.lun);
1866
1867 ipr_err_separator;
1868
1869 array_entry = error->array_member;
1870
1871 for (i = 0; i < 18; i++) {
cfc32139 1872 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1873 continue;
1874
fa15b1f6 1875 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1876 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1877 else
1da177e4 1878 ipr_err("Array Member %d:\n", i);
1da177e4 1879
cfc32139 1880 ipr_log_vpd(&array_entry->vpd);
1da177e4 1881
fa15b1f6 1882 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1883 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1884 "Expected Location");
1da177e4
LT		 1885
1886 ipr_err_separator;
1887
1888 if (i == 9)
1889 array_entry = error->array_member2;
1890 else
1891 array_entry++;
1892 }
1893}
1894
1895/**
b0df54bb 1896 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1897 * @ioa_cfg: ioa config struct
b0df54bb 1898 * @data: IOA error data
1899 * @len: data length
1da177e4
LT		 1900 *
1901 * Return value:
1902 * none
1903 **/
359d96e7 1904static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1da177e4
LT		 1905{
1906 int i;
1da177e4 1907
b0df54bb 1908 if (len == 0)
1da177e4
LT		 1909 return;
1910
ac719aba
BK		 1911 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1912 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1913
b0df54bb 1914 for (i = 0; i < len / 4; i += 4) {
1da177e4 1915 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb 1916 be32_to_cpu(data[i]),
1917 be32_to_cpu(data[i+1]),
1918 be32_to_cpu(data[i+2]),
1919 be32_to_cpu(data[i+3]));
1da177e4
LT		 1920 }
1921}
1922
ee0f05b8 1923/**
1924 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1925 * @ioa_cfg: ioa config struct
1926 * @hostrcb: hostrcb struct
1927 *
1928 * Return value:
1929 * none
1930 **/
1931static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1932 struct ipr_hostrcb *hostrcb)
1933{
1934 struct ipr_hostrcb_type_17_error *error;
1935
4565e370
WB		 1936 if (ioa_cfg->sis64)
1937 error = &hostrcb->hcam.u.error64.u.type_17_error;
1938 else
1939 error = &hostrcb->hcam.u.error.u.type_17_error;
1940
ee0f05b8 1941 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1942 strim(error->failure_reason);
ee0f05b8 1943
8cf093e2
BK		 1944 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1945 be32_to_cpu(hostrcb->hcam.u.error.prc));
1946 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1947 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8 1948 be32_to_cpu(hostrcb->hcam.length) -
1949 (offsetof(struct ipr_hostrcb_error, u) +
1950 offsetof(struct ipr_hostrcb_type_17_error, data)));
1951}
1952
b0df54bb 1953/**
1954 * ipr_log_dual_ioa_error - Log a dual adapter error.
1955 * @ioa_cfg: ioa config struct
1956 * @hostrcb: hostrcb struct
1957 *
1958 * Return value:
1959 * none
1960 **/
1961static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1962 struct ipr_hostrcb *hostrcb)
1963{
1964 struct ipr_hostrcb_type_07_error *error;
1965
1966 error = &hostrcb->hcam.u.error.u.type_07_error;
1967 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1968 strim(error->failure_reason);
b0df54bb 1969
8cf093e2
BK		 1970 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1971 be32_to_cpu(hostrcb->hcam.u.error.prc));
1972 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1973 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb 1974 be32_to_cpu(hostrcb->hcam.length) -
1975 (offsetof(struct ipr_hostrcb_error, u) +
1976 offsetof(struct ipr_hostrcb_type_07_error, data)));
1977}
1978
49dc6a18
BK		 1979static const struct {
1980 u8 active;
1981 char *desc;
1982} path_active_desc[] = {
1983 { IPR_PATH_NO_INFO, "Path" },
1984 { IPR_PATH_ACTIVE, "Active path" },
1985 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1986};
1987
1988static const struct {
1989 u8 state;
1990 char *desc;
1991} path_state_desc[] = {
1992 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1993 { IPR_PATH_HEALTHY, "is healthy" },
1994 { IPR_PATH_DEGRADED, "is degraded" },
1995 { IPR_PATH_FAILED, "is failed" }
1996};
1997
1998/**
1999 * ipr_log_fabric_path - Log a fabric path error
2000 * @hostrcb: hostrcb struct
2001 * @fabric: fabric descriptor
2002 *
2003 * Return value:
2004 * none
2005 **/
2006static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2007 struct ipr_hostrcb_fabric_desc *fabric)
2008{
2009 int i, j;
2010 u8 path_state = fabric->path_state;
2011 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2012 u8 state = path_state & IPR_PATH_STATE_MASK;
2013
2014 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2015 if (path_active_desc[i].active != active)
2016 continue;
2017
2018 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2019 if (path_state_desc[j].state != state)
2020 continue;
2021
2022 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2024 path_active_desc[i].desc, path_state_desc[j].desc,
2025 fabric->ioa_port);
2026 } else if (fabric->cascaded_expander == 0xff) {
2027 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2028 path_active_desc[i].desc, path_state_desc[j].desc,
2029 fabric->ioa_port, fabric->phy);
2030 } else if (fabric->phy == 0xff) {
2031 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2032 path_active_desc[i].desc, path_state_desc[j].desc,
2033 fabric->ioa_port, fabric->cascaded_expander);
2034 } else {
2035 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2036 path_active_desc[i].desc, path_state_desc[j].desc,
2037 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2038 }
2039 return;
2040 }
2041 }
2042
2043 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2044 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2045}
2046
4565e370
WB		 2047/**
2048 * ipr_log64_fabric_path - Log a fabric path error
2049 * @hostrcb: hostrcb struct
2050 * @fabric: fabric descriptor
2051 *
2052 * Return value:
2053 * none
2054 **/
2055static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2056 struct ipr_hostrcb64_fabric_desc *fabric)
2057{
2058 int i, j;
2059 u8 path_state = fabric->path_state;
2060 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2061 u8 state = path_state & IPR_PATH_STATE_MASK;
2062 char buffer[IPR_MAX_RES_PATH_LENGTH];
2063
2064 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2065 if (path_active_desc[i].active != active)
2066 continue;
2067
2068 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2069 if (path_state_desc[j].state != state)
2070 continue;
2071
2072 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2073 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2074 ipr_format_res_path(hostrcb->ioa_cfg,
2075 fabric->res_path,
2076 buffer, sizeof(buffer)));
4565e370
WB		 2077 return;
2078 }
2079 }
2080
2081 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2082 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2083 buffer, sizeof(buffer)));
4565e370
WB		 2084}
2085
49dc6a18
BK		 2086static const struct {
2087 u8 type;
2088 char *desc;
2089} path_type_desc[] = {
2090 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2091 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2092 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2093 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2094};
2095
2096static const struct {
2097 u8 status;
2098 char *desc;
2099} path_status_desc[] = {
2100 { IPR_PATH_CFG_NO_PROB, "Functional" },
2101 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2102 { IPR_PATH_CFG_FAILED, "Failed" },
2103 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2104 { IPR_PATH_NOT_DETECTED, "Missing" },
2105 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2106};
2107
2108static const char *link_rate[] = {
2109 "unknown",
2110 "disabled",
2111 "phy reset problem",
2112 "spinup hold",
2113 "port selector",
2114 "unknown",
2115 "unknown",
2116 "unknown",
2117 "1.5Gbps",
2118 "3.0Gbps",
2119 "unknown",
2120 "unknown",
2121 "unknown",
2122 "unknown",
2123 "unknown",
2124 "unknown"
2125};
2126
2127/**
2128 * ipr_log_path_elem - Log a fabric path element.
2129 * @hostrcb: hostrcb struct
2130 * @cfg: fabric path element struct
2131 *
2132 * Return value:
2133 * none
2134 **/
2135static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2136 struct ipr_hostrcb_config_element *cfg)
2137{
2138 int i, j;
2139 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2140 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2141
2142 if (type == IPR_PATH_CFG_NOT_EXIST)
2143 return;
2144
2145 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2146 if (path_type_desc[i].type != type)
2147 continue;
2148
2149 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2150 if (path_status_desc[j].status != status)
2151 continue;
2152
2153 if (type == IPR_PATH_CFG_IOA_PORT) {
2154 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2155 path_status_desc[j].desc, path_type_desc[i].desc,
2156 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2157 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2158 } else {
2159 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2160 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2161 path_status_desc[j].desc, path_type_desc[i].desc,
2162 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2163 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2164 } else if (cfg->cascaded_expander == 0xff) {
2165 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2166 "WWN=%08X%08X\n", path_status_desc[j].desc,
2167 path_type_desc[i].desc, cfg->phy,
2168 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2169 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2170 } else if (cfg->phy == 0xff) {
2171 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2172 "WWN=%08X%08X\n", path_status_desc[j].desc,
2173 path_type_desc[i].desc, cfg->cascaded_expander,
2174 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2175 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2176 } else {
2177 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2178 "WWN=%08X%08X\n", path_status_desc[j].desc,
2179 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2180 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2181 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2182 }
2183 }
2184 return;
2185 }
2186 }
2187
2188 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2189 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2190 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2191 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2192}
2193
4565e370
WB		 2194/**
2195 * ipr_log64_path_elem - Log a fabric path element.
2196 * @hostrcb: hostrcb struct
2197 * @cfg: fabric path element struct
2198 *
2199 * Return value:
2200 * none
2201 **/
2202static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2203 struct ipr_hostrcb64_config_element *cfg)
2204{
2205 int i, j;
2206 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2207 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2208 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2209 char buffer[IPR_MAX_RES_PATH_LENGTH];
2210
2211 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2212 return;
2213
2214 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2215 if (path_type_desc[i].type != type)
2216 continue;
2217
2218 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2219 if (path_status_desc[j].status != status)
2220 continue;
2221
2222 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2223 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2224 ipr_format_res_path(hostrcb->ioa_cfg,
2225 cfg->res_path, buffer, sizeof(buffer)),
2226 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2227 be32_to_cpu(cfg->wwid[0]),
2228 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2229 return;
2230 }
2231 }
2232 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2233 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2234 ipr_format_res_path(hostrcb->ioa_cfg,
2235 cfg->res_path, buffer, sizeof(buffer)),
2236 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2237 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2238}
2239
49dc6a18
BK		 2240/**
2241 * ipr_log_fabric_error - Log a fabric error.
2242 * @ioa_cfg: ioa config struct
2243 * @hostrcb: hostrcb struct
2244 *
2245 * Return value:
2246 * none
2247 **/
2248static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2249 struct ipr_hostrcb *hostrcb)
2250{
2251 struct ipr_hostrcb_type_20_error *error;
2252 struct ipr_hostrcb_fabric_desc *fabric;
2253 struct ipr_hostrcb_config_element *cfg;
2254 int i, add_len;
2255
2256 error = &hostrcb->hcam.u.error.u.type_20_error;
2257 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2258 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2259
2260 add_len = be32_to_cpu(hostrcb->hcam.length) -
2261 (offsetof(struct ipr_hostrcb_error, u) +
2262 offsetof(struct ipr_hostrcb_type_20_error, desc));
2263
2264 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2265 ipr_log_fabric_path(hostrcb, fabric);
2266 for_each_fabric_cfg(fabric, cfg)
2267 ipr_log_path_elem(hostrcb, cfg);
2268
2269 add_len -= be16_to_cpu(fabric->length);
2270 fabric = (struct ipr_hostrcb_fabric_desc *)
2271 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2272 }
2273
359d96e7 2274 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
49dc6a18
BK		 2275}
2276
4565e370
WB		 2277/**
2278 * ipr_log_sis64_array_error - Log a sis64 array error.
2279 * @ioa_cfg: ioa config struct
2280 * @hostrcb: hostrcb struct
2281 *
2282 * Return value:
2283 * none
2284 **/
2285static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2286 struct ipr_hostrcb *hostrcb)
2287{
2288 int i, num_entries;
2289 struct ipr_hostrcb_type_24_error *error;
2290 struct ipr_hostrcb64_array_data_entry *array_entry;
2291 char buffer[IPR_MAX_RES_PATH_LENGTH];
2292 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2293
2294 error = &hostrcb->hcam.u.error64.u.type_24_error;
2295
2296 ipr_err_separator;
2297
2298 ipr_err("RAID %s Array Configuration: %s\n",
2299 error->protection_level,
b3b3b407
BK		 2300 ipr_format_res_path(ioa_cfg, error->last_res_path,
2301 buffer, sizeof(buffer)));
4565e370
WB		 2302
2303 ipr_err_separator;
2304
2305 array_entry = error->array_member;
7262026f
WB		 2306 num_entries = min_t(u32, error->num_entries,
2307 ARRAY_SIZE(error->array_member));
4565e370
WB		 2308
2309 for (i = 0; i < num_entries; i++, array_entry++) {
2310
2311 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2312 continue;
2313
2314 if (error->exposed_mode_adn == i)
2315 ipr_err("Exposed Array Member %d:\n", i);
2316 else
2317 ipr_err("Array Member %d:\n", i);
2318
2319 ipr_err("Array Member %d:\n", i);
2320 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2321 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2322 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2323 buffer, sizeof(buffer)));
7262026f 2324 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2325 ipr_format_res_path(ioa_cfg,
2326 array_entry->expected_res_path,
2327 buffer, sizeof(buffer)));
4565e370
WB		 2328
2329 ipr_err_separator;
2330 }
2331}
2332
2333/**
2334 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2335 * @ioa_cfg: ioa config struct
2336 * @hostrcb: hostrcb struct
2337 *
2338 * Return value:
2339 * none
2340 **/
2341static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2342 struct ipr_hostrcb *hostrcb)
2343{
2344 struct ipr_hostrcb_type_30_error *error;
2345 struct ipr_hostrcb64_fabric_desc *fabric;
2346 struct ipr_hostrcb64_config_element *cfg;
2347 int i, add_len;
2348
2349 error = &hostrcb->hcam.u.error64.u.type_30_error;
2350
2351 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2352 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2353
2354 add_len = be32_to_cpu(hostrcb->hcam.length) -
2355 (offsetof(struct ipr_hostrcb64_error, u) +
2356 offsetof(struct ipr_hostrcb_type_30_error, desc));
2357
2358 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2359 ipr_log64_fabric_path(hostrcb, fabric);
2360 for_each_fabric_cfg(fabric, cfg)
2361 ipr_log64_path_elem(hostrcb, cfg);
2362
2363 add_len -= be16_to_cpu(fabric->length);
2364 fabric = (struct ipr_hostrcb64_fabric_desc *)
2365 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2366 }
2367
359d96e7 2368 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
4565e370
WB		 2369}
2370
b0df54bb 2371/**
2372 * ipr_log_generic_error - Log an adapter error.
2373 * @ioa_cfg: ioa config struct
2374 * @hostrcb: hostrcb struct
2375 *
2376 * Return value:
2377 * none
2378 **/
2379static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2380 struct ipr_hostrcb *hostrcb)
2381{
ac719aba 2382 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb 2383 be32_to_cpu(hostrcb->hcam.length));
2384}
2385
169b9ec8
WX		 2386/**
2387 * ipr_log_sis64_device_error - Log a cache error.
2388 * @ioa_cfg: ioa config struct
2389 * @hostrcb: hostrcb struct
2390 *
2391 * Return value:
2392 * none
2393 **/
2394static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2395 struct ipr_hostrcb *hostrcb)
2396{
2397 struct ipr_hostrcb_type_21_error *error;
2398 char buffer[IPR_MAX_RES_PATH_LENGTH];
2399
2400 error = &hostrcb->hcam.u.error64.u.type_21_error;
2401
2402 ipr_err("-----Failing Device Information-----\n");
2403 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2404 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2405 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2406 ipr_err("Device Resource Path: %s\n",
2407 __ipr_format_res_path(error->res_path,
2408 buffer, sizeof(buffer)));
2409 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2410 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2411 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2412 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2413 ipr_err("SCSI Sense Data:\n");
2414 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2415 ipr_err("SCSI Command Descriptor Block: \n");
2416 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2417
2418 ipr_err("Additional IOA Data:\n");
2419 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2420}
2421
1da177e4
LT		 2422/**
2423 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2424 * @ioasc: IOASC
2425 *
2426 * This function will return the index of into the ipr_error_table
2427 * for the specified IOASC. If the IOASC is not in the table,
2428 * 0 will be returned, which points to the entry used for unknown errors.
2429 *
2430 * Return value:
2431 * index into the ipr_error_table
2432 **/
2433static u32 ipr_get_error(u32 ioasc)
2434{
2435 int i;
2436
2437 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2438 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2439 return i;
2440
2441 return 0;
2442}
2443
2444/**
2445 * ipr_handle_log_data - Log an adapter error.
2446 * @ioa_cfg: ioa config struct
2447 * @hostrcb: hostrcb struct
2448 *
2449 * This function logs an adapter error to the system.
2450 *
2451 * Return value:
2452 * none
2453 **/
2454static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2455 struct ipr_hostrcb *hostrcb)
2456{
2457 u32 ioasc;
2458 int error_index;
3185ea63 2459 struct ipr_hostrcb_type_21_error *error;
1da177e4
LT		 2460
2461 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2462 return;
2463
2464 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2465 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2466
4565e370
WB		 2467 if (ioa_cfg->sis64)
2468 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2469 else
2470 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2471
4565e370
WB		 2472 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2473 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2474 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2475 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2476 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2477 }
2478
2479 error_index = ipr_get_error(ioasc);
2480
2481 if (!ipr_error_table[error_index].log_hcam)
2482 return;
2483
3185ea63 2484 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2485 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2486 error = &hostrcb->hcam.u.error64.u.type_21_error;
2487
2488 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2489 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2490 return;
2491 }
2492
49dc6a18 2493 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2494
2495 /* Set indication we have logged an error */
2496 ioa_cfg->errors_logged++;
2497
933916f3 2498 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2499 return;
cf852037 2500 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2501 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2502
2503 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2504 case IPR_HOST_RCB_OVERLAY_ID_2:
2505 ipr_log_cache_error(ioa_cfg, hostrcb);
2506 break;
2507 case IPR_HOST_RCB_OVERLAY_ID_3:
2508 ipr_log_config_error(ioa_cfg, hostrcb);
2509 break;
2510 case IPR_HOST_RCB_OVERLAY_ID_4:
2511 case IPR_HOST_RCB_OVERLAY_ID_6:
2512 ipr_log_array_error(ioa_cfg, hostrcb);
2513 break;
b0df54bb 2514 case IPR_HOST_RCB_OVERLAY_ID_7:
2515 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2516 break;
ee0f05b8 2517 case IPR_HOST_RCB_OVERLAY_ID_12:
2518 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2519 break;
2520 case IPR_HOST_RCB_OVERLAY_ID_13:
2521 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2522 break;
2523 case IPR_HOST_RCB_OVERLAY_ID_14:
2524 case IPR_HOST_RCB_OVERLAY_ID_16:
2525 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2526 break;
2527 case IPR_HOST_RCB_OVERLAY_ID_17:
2528 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2529 break;
49dc6a18
BK		 2530 case IPR_HOST_RCB_OVERLAY_ID_20:
2531 ipr_log_fabric_error(ioa_cfg, hostrcb);
2532 break;
169b9ec8
WX		 2533 case IPR_HOST_RCB_OVERLAY_ID_21:
2534 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2535 break;
4565e370
WB		 2536 case IPR_HOST_RCB_OVERLAY_ID_23:
2537 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2538 break;
2539 case IPR_HOST_RCB_OVERLAY_ID_24:
2540 case IPR_HOST_RCB_OVERLAY_ID_26:
2541 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2542 break;
2543 case IPR_HOST_RCB_OVERLAY_ID_30:
2544 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2545 break;
cf852037 2546 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2547 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2548 default:
a9cfca96 2549 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2550 break;
2551 }
2552}
2553
2554/**
2555 * ipr_process_error - Op done function for an adapter error log.
2556 * @ipr_cmd: ipr command struct
2557 *
2558 * This function is the op done function for an error log host
2559 * controlled async from the adapter. It will log the error and
2560 * send the HCAM back to the adapter.
2561 *
2562 * Return value:
2563 * none
2564 **/
2565static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2566{
2567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2568 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2569 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2570 u32 fd_ioasc;
2571
2572 if (ioa_cfg->sis64)
2573 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2574 else
2575 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2576
2577 list_del(&hostrcb->queue);
05a6538a 2578 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2579
2580 if (!ioasc) {
2581 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2582 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2583 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4fdd7c7a
BK		 2584 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2585 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
1da177e4
LT		 2586 dev_err(&ioa_cfg->pdev->dev,
2587 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2588 }
2589
2590 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2591}
2592
2593/**
2594 * ipr_timeout - An internally generated op has timed out.
2595 * @ipr_cmd: ipr command struct
2596 *
2597 * This function blocks host requests and initiates an
2598 * adapter reset.
2599 *
2600 * Return value:
2601 * none
2602 **/
2603static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2604{
2605 unsigned long lock_flags = 0;
2606 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2607
2608 ENTER;
2609 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2610
2611 ioa_cfg->errors_logged++;
2612 dev_err(&ioa_cfg->pdev->dev,
2613 "Adapter being reset due to command timeout.\n");
2614
2615 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2616 ioa_cfg->sdt_state = GET_DUMP;
2617
2618 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2619 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2620
2621 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2622 LEAVE;
2623}
2624
2625/**
2626 * ipr_oper_timeout - Adapter timed out transitioning to operational
2627 * @ipr_cmd: ipr command struct
2628 *
2629 * This function blocks host requests and initiates an
2630 * adapter reset.
2631 *
2632 * Return value:
2633 * none
2634 **/
2635static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2636{
2637 unsigned long lock_flags = 0;
2638 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2639
2640 ENTER;
2641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2642
2643 ioa_cfg->errors_logged++;
2644 dev_err(&ioa_cfg->pdev->dev,
2645 "Adapter timed out transitioning to operational.\n");
2646
2647 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2648 ioa_cfg->sdt_state = GET_DUMP;
2649
2650 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2651 if (ipr_fastfail)
2652 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2653 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2654 }
2655
2656 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2657 LEAVE;
2658}
2659
1da177e4
LT		 2660/**
2661 * ipr_find_ses_entry - Find matching SES in SES table
2662 * @res: resource entry struct of SES
2663 *
2664 * Return value:
2665 * pointer to SES table entry / NULL on failure
2666 **/
2667static const struct ipr_ses_table_entry *
2668ipr_find_ses_entry(struct ipr_resource_entry *res)
2669{
2670 int i, j, matches;
3e7ebdfa 2671 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2672 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2673
2674 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2675 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2676 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2677 vpids = &res->std_inq_data.vpids;
2678 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2679 matches++;
2680 else
2681 break;
2682 } else
2683 matches++;
2684 }
2685
2686 if (matches == IPR_PROD_ID_LEN)
2687 return ste;
2688 }
2689
2690 return NULL;
2691}
2692
2693/**
2694 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2695 * @ioa_cfg: ioa config struct
2696 * @bus: SCSI bus
2697 * @bus_width: bus width
2698 *
2699 * Return value:
2700 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2701 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2702 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2703 * max 160MHz = max 320MB/sec).
2704 **/
2705static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2706{
2707 struct ipr_resource_entry *res;
2708 const struct ipr_ses_table_entry *ste;
2709 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2710
2711 /* Loop through each config table entry in the config table buffer */
2712 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2713 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2714 continue;
2715
3e7ebdfa 2716 if (bus != res->bus)
1da177e4
LT		 2717 continue;
2718
2719 if (!(ste = ipr_find_ses_entry(res)))
2720 continue;
2721
2722 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2723 }
2724
2725 return max_xfer_rate;
2726}
2727
2728/**
2729 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2730 * @ioa_cfg: ioa config struct
2731 * @max_delay: max delay in micro-seconds to wait
2732 *
2733 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2734 *
2735 * Return value:
2736 * 0 on success / other on failure
2737 **/
2738static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2739{
2740 volatile u32 pcii_reg;
2741 int delay = 1;
2742
2743 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2744 while (delay < max_delay) {
2745 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2746
2747 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2748 return 0;
2749
2750 /* udelay cannot be used if delay is more than a few milliseconds */
2751 if ((delay / 1000) > MAX_UDELAY_MS)
2752 mdelay(delay / 1000);
2753 else
2754 udelay(delay);
2755
2756 delay += delay;
2757 }
2758 return -EIO;
2759}
2760
dcbad00e
WB		 2761/**
2762 * ipr_get_sis64_dump_data_section - Dump IOA memory
2763 * @ioa_cfg: ioa config struct
2764 * @start_addr: adapter address to dump
2765 * @dest: destination kernel buffer
2766 * @length_in_words: length to dump in 4 byte words
2767 *
2768 * Return value:
2769 * 0 on success
2770 **/
2771static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2772 u32 start_addr,
2773 __be32 *dest, u32 length_in_words)
2774{
2775 int i;
2776
2777 for (i = 0; i < length_in_words; i++) {
2778 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2779 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2780 dest++;
2781 }
2782
2783 return 0;
2784}
2785
1da177e4
LT		 2786/**
2787 * ipr_get_ldump_data_section - Dump IOA memory
2788 * @ioa_cfg: ioa config struct
2789 * @start_addr: adapter address to dump
2790 * @dest: destination kernel buffer
2791 * @length_in_words: length to dump in 4 byte words
2792 *
2793 * Return value:
2794 * 0 on success / -EIO on failure
2795 **/
2796static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2797 u32 start_addr,
2798 __be32 *dest, u32 length_in_words)
2799{
2800 volatile u32 temp_pcii_reg;
2801 int i, delay = 0;
2802
dcbad00e
WB		 2803 if (ioa_cfg->sis64)
2804 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2805 dest, length_in_words);
2806
1da177e4
LT		 2807 /* Write IOA interrupt reg starting LDUMP state */
2808 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2809 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2810
2811 /* Wait for IO debug acknowledge */
2812 if (ipr_wait_iodbg_ack(ioa_cfg,
2813 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2814 dev_err(&ioa_cfg->pdev->dev,
2815 "IOA dump long data transfer timeout\n");
2816 return -EIO;
2817 }
2818
2819 /* Signal LDUMP interlocked - clear IO debug ack */
2820 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2821 ioa_cfg->regs.clr_interrupt_reg);
2822
2823 /* Write Mailbox with starting address */
2824 writel(start_addr, ioa_cfg->ioa_mailbox);
2825
2826 /* Signal address valid - clear IOA Reset alert */
2827 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2828 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2829
2830 for (i = 0; i < length_in_words; i++) {
2831 /* Wait for IO debug acknowledge */
2832 if (ipr_wait_iodbg_ack(ioa_cfg,
2833 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2834 dev_err(&ioa_cfg->pdev->dev,
2835 "IOA dump short data transfer timeout\n");
2836 return -EIO;
2837 }
2838
2839 /* Read data from mailbox and increment destination pointer */
2840 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2841 dest++;
2842
2843 /* For all but the last word of data, signal data received */
2844 if (i < (length_in_words - 1)) {
2845 /* Signal dump data received - Clear IO debug Ack */
2846 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2847 ioa_cfg->regs.clr_interrupt_reg);
2848 }
2849 }
2850
2851 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2852 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2853 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2854
2855 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2856 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2857
2858 /* Signal dump data received - Clear IO debug Ack */
2859 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2860 ioa_cfg->regs.clr_interrupt_reg);
2861
2862 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2863 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2864 temp_pcii_reg =
214777ba 2865 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2866
2867 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2868 return 0;
2869
2870 udelay(10);
2871 delay += 10;
2872 }
2873
2874 return 0;
2875}
2876
2877#ifdef CONFIG_SCSI_IPR_DUMP
2878/**
2879 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2880 * @ioa_cfg: ioa config struct
2881 * @pci_address: adapter address
2882 * @length: length of data to copy
2883 *
2884 * Copy data from PCI adapter to kernel buffer.
2885 * Note: length MUST be a 4 byte multiple
2886 * Return value:
2887 * 0 on success / other on failure
2888 **/
2889static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2890 unsigned long pci_address, u32 length)
2891{
2892 int bytes_copied = 0;
4d4dd706 2893 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2894 __be32 *page;
2895 unsigned long lock_flags = 0;
2896 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2897
4d4dd706
KSS		 2898 if (ioa_cfg->sis64)
2899 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2900 else
2901 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2902
1da177e4 2903 while (bytes_copied < length &&
4d4dd706 2904 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2905 if (ioa_dump->page_offset >= PAGE_SIZE ||
2906 ioa_dump->page_offset == 0) {
2907 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2908
2909 if (!page) {
2910 ipr_trace;
2911 return bytes_copied;
2912 }
2913
2914 ioa_dump->page_offset = 0;
2915 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2916 ioa_dump->next_page_index++;
2917 } else
2918 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2919
2920 rem_len = length - bytes_copied;
2921 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2922 cur_len = min(rem_len, rem_page_len);
2923
2924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2925 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2926 rc = -EIO;
2927 } else {
2928 rc = ipr_get_ldump_data_section(ioa_cfg,
2929 pci_address + bytes_copied,
2930 &page[ioa_dump->page_offset / 4],
2931 (cur_len / sizeof(u32)));
2932 }
2933 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2934
2935 if (!rc) {
2936 ioa_dump->page_offset += cur_len;
2937 bytes_copied += cur_len;
2938 } else {
2939 ipr_trace;
2940 break;
2941 }
2942 schedule();
2943 }
2944
2945 return bytes_copied;
2946}
2947
2948/**
2949 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2950 * @hdr: dump entry header struct
2951 *
2952 * Return value:
2953 * nothing
2954 **/
2955static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2956{
2957 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2958 hdr->num_elems = 1;
2959 hdr->offset = sizeof(*hdr);
2960 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2961}
2962
2963/**
2964 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2965 * @ioa_cfg: ioa config struct
2966 * @driver_dump: driver dump struct
2967 *
2968 * Return value:
2969 * nothing
2970 **/
2971static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2972 struct ipr_driver_dump *driver_dump)
2973{
2974 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2975
2976 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2977 driver_dump->ioa_type_entry.hdr.len =
2978 sizeof(struct ipr_dump_ioa_type_entry) -
2979 sizeof(struct ipr_dump_entry_header);
2980 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2981 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2982 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2983 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2984 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2985 ucode_vpd->minor_release[1];
2986 driver_dump->hdr.num_entries++;
2987}
2988
2989/**
2990 * ipr_dump_version_data - Fill in the driver version in the dump.
2991 * @ioa_cfg: ioa config struct
2992 * @driver_dump: driver dump struct
2993 *
2994 * Return value:
2995 * nothing
2996 **/
2997static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2998 struct ipr_driver_dump *driver_dump)
2999{
3000 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3001 driver_dump->version_entry.hdr.len =
3002 sizeof(struct ipr_dump_version_entry) -
3003 sizeof(struct ipr_dump_entry_header);
3004 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3005 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3006 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3007 driver_dump->hdr.num_entries++;
3008}
3009
3010/**
3011 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3012 * @ioa_cfg: ioa config struct
3013 * @driver_dump: driver dump struct
3014 *
3015 * Return value:
3016 * nothing
3017 **/
3018static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3019 struct ipr_driver_dump *driver_dump)
3020{
3021 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3022 driver_dump->trace_entry.hdr.len =
3023 sizeof(struct ipr_dump_trace_entry) -
3024 sizeof(struct ipr_dump_entry_header);
3025 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3026 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3027 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3028 driver_dump->hdr.num_entries++;
3029}
3030
3031/**
3032 * ipr_dump_location_data - Fill in the IOA location in the dump.
3033 * @ioa_cfg: ioa config struct
3034 * @driver_dump: driver dump struct
3035 *
3036 * Return value:
3037 * nothing
3038 **/
3039static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3040 struct ipr_driver_dump *driver_dump)
3041{
3042 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3043 driver_dump->location_entry.hdr.len =
3044 sizeof(struct ipr_dump_location_entry) -
3045 sizeof(struct ipr_dump_entry_header);
3046 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3047 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3048 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3049 driver_dump->hdr.num_entries++;
3050}
3051
3052/**
3053 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3054 * @ioa_cfg: ioa config struct
3055 * @dump: dump struct
3056 *
3057 * Return value:
3058 * nothing
3059 **/
3060static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3061{
3062 unsigned long start_addr, sdt_word;
3063 unsigned long lock_flags = 0;
3064 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3065 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3066 u32 num_entries, max_num_entries, start_off, end_off;
3067 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3068 struct ipr_sdt *sdt;
dcbad00e 3069 int valid = 1;
1da177e4
LT		 3070 int i;
3071
3072 ENTER;
3073
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3075
41e9a696 3076 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3078 return;
3079 }
3080
110def85
WB		 3081 if (ioa_cfg->sis64) {
3082 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3083 ssleep(IPR_DUMP_DELAY_SECONDS);
3084 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3085 }
3086
1da177e4
LT		 3087 start_addr = readl(ioa_cfg->ioa_mailbox);
3088
dcbad00e 3089 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3090 dev_err(&ioa_cfg->pdev->dev,
3091 "Invalid dump table format: %lx\n", start_addr);
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3093 return;
3094 }
3095
3096 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3097
3098 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3099
3100 /* Initialize the overall dump header */
3101 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3102 driver_dump->hdr.num_entries = 1;
3103 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3104 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3105 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3106 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3107
3108 ipr_dump_version_data(ioa_cfg, driver_dump);
3109 ipr_dump_location_data(ioa_cfg, driver_dump);
3110 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3111 ipr_dump_trace_data(ioa_cfg, driver_dump);
3112
3113 /* Update dump_header */
3114 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3115
3116 /* IOA Dump entry */
3117 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3118 ioa_dump->hdr.len = 0;
3119 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3120 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3121
3122 /* First entries in sdt are actually a list of dump addresses and
3123 lengths to gather the real dump data. sdt represents the pointer
3124 to the ioa generated dump table. Dump data will be extracted based
3125 on entries in this table */
3126 sdt = &ioa_dump->sdt;
3127
4d4dd706
KSS		 3128 if (ioa_cfg->sis64) {
3129 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3130 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3131 } else {
3132 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3133 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3134 }
3135
3136 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3137 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3138 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3139 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3140
3141 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3142 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3143 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3144 dev_err(&ioa_cfg->pdev->dev,
3145 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3146 rc, be32_to_cpu(sdt->hdr.state));
3147 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3148 ioa_cfg->sdt_state = DUMP_OBTAINED;
3149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3150 return;
3151 }
3152
3153 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3154
4d4dd706
KSS		 3155 if (num_entries > max_num_entries)
3156 num_entries = max_num_entries;
3157
3158 /* Update dump length to the actual data to be copied */
3159 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3160 if (ioa_cfg->sis64)
3161 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3162 else
3163 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3164
3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3166
3167 for (i = 0; i < num_entries; i++) {
4d4dd706 3168 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3169 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3170 break;
3171 }
3172
3173 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3174 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3175 if (ioa_cfg->sis64)
3176 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3177 else {
3178 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3179 end_off = be32_to_cpu(sdt->entry[i].end_token);
3180
3181 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3182 bytes_to_copy = end_off - start_off;
3183 else
3184 valid = 0;
3185 }
3186 if (valid) {
4d4dd706 3187 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3188 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3189 continue;
3190 }
3191
3192 /* Copy data from adapter to driver buffers */
3193 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3194 bytes_to_copy);
3195
3196 ioa_dump->hdr.len += bytes_copied;
3197
3198 if (bytes_copied != bytes_to_copy) {
3199 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3200 break;
3201 }
3202 }
3203 }
3204 }
3205
3206 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3207
3208 /* Update dump_header */
3209 driver_dump->hdr.len += ioa_dump->hdr.len;
3210 wmb();
3211 ioa_cfg->sdt_state = DUMP_OBTAINED;
3212 LEAVE;
3213}
3214
3215#else
203fa3fe 3216#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3217#endif
3218
3219/**
3220 * ipr_release_dump - Free adapter dump memory
3221 * @kref: kref struct
3222 *
3223 * Return value:
3224 * nothing
3225 **/
3226static void ipr_release_dump(struct kref *kref)
3227{
203fa3fe 3228 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3229 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3230 unsigned long lock_flags = 0;
3231 int i;
3232
3233 ENTER;
3234 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3235 ioa_cfg->dump = NULL;
3236 ioa_cfg->sdt_state = INACTIVE;
3237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3238
3239 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3240 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3241
4d4dd706 3242 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3243 kfree(dump);
3244 LEAVE;
3245}
3246
3247/**
3248 * ipr_worker_thread - Worker thread
c4028958 3249 * @work: ioa config struct
1da177e4
LT		 3250 *
3251 * Called at task level from a work thread. This function takes care
3252 * of adding and removing device from the mid-layer as configuration
3253 * changes are detected by the adapter.
3254 *
3255 * Return value:
3256 * nothing
3257 **/
c4028958 3258static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3259{
3260 unsigned long lock_flags;
3261 struct ipr_resource_entry *res;
3262 struct scsi_device *sdev;
3263 struct ipr_dump *dump;
c4028958
DH		 3264 struct ipr_ioa_cfg *ioa_cfg =
3265 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3266 u8 bus, target, lun;
3267 int did_work;
3268
3269 ENTER;
3270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3271
41e9a696 3272 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3273 dump = ioa_cfg->dump;
3274 if (!dump) {
3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3276 return;
3277 }
3278 kref_get(&dump->kref);
3279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3280 ipr_get_ioa_dump(ioa_cfg, dump);
3281 kref_put(&dump->kref, ipr_release_dump);
3282
3283 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3284 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3285 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3286 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3287 return;
3288 }
3289
3290restart:
3291 do {
3292 did_work = 0;
f688f96d 3293 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4
LT		 3294 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3295 return;
3296 }
3297
3298 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3299 if (res->del_from_ml && res->sdev) {
3300 did_work = 1;
3301 sdev = res->sdev;
3302 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3303 if (!res->add_to_ml)
3304 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3305 else
3306 res->del_from_ml = 0;
1da177e4
LT		 3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3308 scsi_remove_device(sdev);
3309 scsi_device_put(sdev);
3310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3311 }
3312 break;
3313 }
3314 }
203fa3fe 3315 } while (did_work);
1da177e4
LT		 3316
3317 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3318 if (res->add_to_ml) {
3e7ebdfa
WB		 3319 bus = res->bus;
3320 target = res->target;
3321 lun = res->lun;
1121b794 3322 res->add_to_ml = 0;
1da177e4
LT		 3323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3324 scsi_add_device(ioa_cfg->host, bus, target, lun);
3325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3326 goto restart;
3327 }
3328 }
3329
f688f96d 3330 ioa_cfg->scan_done = 1;
1da177e4 3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3332 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3333 LEAVE;
3334}
3335
3336#ifdef CONFIG_SCSI_IPR_TRACE
3337/**
3338 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3339 * @filp: open sysfs file
1da177e4 3340 * @kobj: kobject struct
91a69029 3341 * @bin_attr: bin_attribute struct
1da177e4
LT		 3342 * @buf: buffer
3343 * @off: offset
3344 * @count: buffer size
3345 *
3346 * Return value:
3347 * number of bytes printed to buffer
3348 **/
2c3c8bea 3349static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3350 struct bin_attribute *bin_attr,
3351 char *buf, loff_t off, size_t count)
1da177e4 3352{
ee959b00
TJ		 3353 struct device *dev = container_of(kobj, struct device, kobj);
3354 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3355 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3356 unsigned long lock_flags = 0;
d777aaf3 3357 ssize_t ret;
1da177e4
LT		 3358
3359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3360 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3361 IPR_TRACE_SIZE);
1da177e4 3362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3363
3364 return ret;
1da177e4
LT		 3365}
3366
3367static struct bin_attribute ipr_trace_attr = {
3368 .attr = {
3369 .name = "trace",
3370 .mode = S_IRUGO,
3371 },
3372 .size = 0,
3373 .read = ipr_read_trace,
3374};
3375#endif
3376
3377/**
3378 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3379 * @dev: class device struct
3380 * @buf: buffer
1da177e4
LT		 3381 *
3382 * Return value:
3383 * number of bytes printed to buffer
3384 **/
ee959b00
TJ		 3385static ssize_t ipr_show_fw_version(struct device *dev,
3386 struct device_attribute *attr, char *buf)
1da177e4 3387{
ee959b00 3388 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3389 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3390 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3391 unsigned long lock_flags = 0;
3392 int len;
3393
3394 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3395 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3396 ucode_vpd->major_release, ucode_vpd->card_type,
3397 ucode_vpd->minor_release[0],
3398 ucode_vpd->minor_release[1]);
3399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3400 return len;
3401}
3402
ee959b00 3403static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3404 .attr = {
3405 .name = "fw_version",
3406 .mode = S_IRUGO,
3407 },
3408 .show = ipr_show_fw_version,
3409};
3410
3411/**
3412 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3413 * @dev: class device struct
3414 * @buf: buffer
1da177e4
LT		 3415 *
3416 * Return value:
3417 * number of bytes printed to buffer
3418 **/
ee959b00
TJ		 3419static ssize_t ipr_show_log_level(struct device *dev,
3420 struct device_attribute *attr, char *buf)
1da177e4 3421{
ee959b00 3422 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3423 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3424 unsigned long lock_flags = 0;
3425 int len;
3426
3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3428 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3430 return len;
3431}
3432
3433/**
3434 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3435 * @dev: class device struct
3436 * @buf: buffer
1da177e4
LT		 3437 *
3438 * Return value:
3439 * number of bytes printed to buffer
3440 **/
ee959b00 3441static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3442 struct device_attribute *attr,
1da177e4
LT		 3443 const char *buf, size_t count)
3444{
ee959b00 3445 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3446 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3447 unsigned long lock_flags = 0;
3448
3449 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3450 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3452 return strlen(buf);
3453}
3454
ee959b00 3455static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3456 .attr = {
3457 .name = "log_level",
3458 .mode = S_IRUGO | S_IWUSR,
3459 },
3460 .show = ipr_show_log_level,
3461 .store = ipr_store_log_level
3462};
3463
3464/**
3465 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3466 * @dev: device struct
3467 * @buf: buffer
3468 * @count: buffer size
1da177e4
LT		 3469 *
3470 * This function will reset the adapter and wait a reasonable
3471 * amount of time for any errors that the adapter might log.
3472 *
3473 * Return value:
3474 * count on success / other on failure
3475 **/
ee959b00
TJ		 3476static ssize_t ipr_store_diagnostics(struct device *dev,
3477 struct device_attribute *attr,
1da177e4
LT		 3478 const char *buf, size_t count)
3479{
ee959b00 3480 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3481 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3482 unsigned long lock_flags = 0;
3483 int rc = count;
3484
3485 if (!capable(CAP_SYS_ADMIN))
3486 return -EACCES;
3487
1da177e4 3488 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3489 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3490 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3491 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3493 }
3494
1da177e4
LT		 3495 ioa_cfg->errors_logged = 0;
3496 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3497
3498 if (ioa_cfg->in_reset_reload) {
3499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3500 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3501
3502 /* Wait for a second for any errors to be logged */
3503 msleep(1000);
3504 } else {
3505 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3506 return -EIO;
3507 }
3508
3509 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3510 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3511 rc = -EIO;
3512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3513
3514 return rc;
3515}
3516
ee959b00 3517static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3518 .attr = {
3519 .name = "run_diagnostics",
3520 .mode = S_IWUSR,
3521 },
3522 .store = ipr_store_diagnostics
3523};
3524
f37eb54b 3525/**
3526 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3527 * @class_dev: device struct
3528 * @buf: buffer
f37eb54b 3529 *
3530 * Return value:
3531 * number of bytes printed to buffer
3532 **/
ee959b00
TJ		 3533static ssize_t ipr_show_adapter_state(struct device *dev,
3534 struct device_attribute *attr, char *buf)
f37eb54b 3535{
ee959b00 3536 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3537 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3538 unsigned long lock_flags = 0;
3539 int len;
3540
3541 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3542 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b 3543 len = snprintf(buf, PAGE_SIZE, "offline\n");
3544 else
3545 len = snprintf(buf, PAGE_SIZE, "online\n");
3546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3547 return len;
3548}
3549
3550/**
3551 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3552 * @dev: device struct
3553 * @buf: buffer
3554 * @count: buffer size
f37eb54b 3555 *
3556 * This function will change the adapter's state.
3557 *
3558 * Return value:
3559 * count on success / other on failure
3560 **/
ee959b00
TJ		 3561static ssize_t ipr_store_adapter_state(struct device *dev,
3562 struct device_attribute *attr,
f37eb54b 3563 const char *buf, size_t count)
3564{
ee959b00 3565 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b 3566 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3567 unsigned long lock_flags;
56d6aa33 3568 int result = count, i;
f37eb54b 3569
3570 if (!capable(CAP_SYS_ADMIN))
3571 return -EACCES;
3572
3573 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3574 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3575 !strncmp(buf, "online", 6)) {
3576 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3577 spin_lock(&ioa_cfg->hrrq[i]._lock);
3578 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3579 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3580 }
3581 wmb();
f37eb54b 3582 ioa_cfg->reset_retries = 0;
3583 ioa_cfg->in_ioa_bringdown = 0;
3584 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3585 }
3586 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3587 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3588
3589 return result;
3590}
3591
ee959b00 3592static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3593 .attr = {
49dd0961 3594 .name = "online_state",
f37eb54b 3595 .mode = S_IRUGO | S_IWUSR,
3596 },
3597 .show = ipr_show_adapter_state,
3598 .store = ipr_store_adapter_state
3599};
3600
1da177e4
LT		 3601/**
3602 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3603 * @dev: device struct
3604 * @buf: buffer
3605 * @count: buffer size
1da177e4
LT		 3606 *
3607 * This function will reset the adapter.
3608 *
3609 * Return value:
3610 * count on success / other on failure
3611 **/
ee959b00
TJ		 3612static ssize_t ipr_store_reset_adapter(struct device *dev,
3613 struct device_attribute *attr,
1da177e4
LT		 3614 const char *buf, size_t count)
3615{
ee959b00 3616 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3617 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3618 unsigned long lock_flags;
3619 int result = count;
3620
3621 if (!capable(CAP_SYS_ADMIN))
3622 return -EACCES;
3623
3624 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3625 if (!ioa_cfg->in_reset_reload)
3626 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3627 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3628 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3629
3630 return result;
3631}
3632
ee959b00 3633static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3634 .attr = {
3635 .name = "reset_host",
3636 .mode = S_IWUSR,
3637 },
3638 .store = ipr_store_reset_adapter
3639};
3640
b53d124a 3641static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3642 /**
3643 * ipr_show_iopoll_weight - Show ipr polling mode
3644 * @dev: class device struct
3645 * @buf: buffer
3646 *
3647 * Return value:
3648 * number of bytes printed to buffer
3649 **/
3650static ssize_t ipr_show_iopoll_weight(struct device *dev,
3651 struct device_attribute *attr, char *buf)
3652{
3653 struct Scsi_Host *shost = class_to_shost(dev);
3654 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3655 unsigned long lock_flags = 0;
3656 int len;
3657
3658 spin_lock_irqsave(shost->host_lock, lock_flags);
3659 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3660 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3661
3662 return len;
3663}
3664
3665/**
3666 * ipr_store_iopoll_weight - Change the adapter's polling mode
3667 * @dev: class device struct
3668 * @buf: buffer
3669 *
3670 * Return value:
3671 * number of bytes printed to buffer
3672 **/
3673static ssize_t ipr_store_iopoll_weight(struct device *dev,
3674 struct device_attribute *attr,
3675 const char *buf, size_t count)
3676{
3677 struct Scsi_Host *shost = class_to_shost(dev);
3678 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3679 unsigned long user_iopoll_weight;
3680 unsigned long lock_flags = 0;
3681 int i;
3682
3683 if (!ioa_cfg->sis64) {
3684 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3685 return -EINVAL;
3686 }
3687 if (kstrtoul(buf, 10, &user_iopoll_weight))
3688 return -EINVAL;
3689
3690 if (user_iopoll_weight > 256) {
3691 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3692 return -EINVAL;
3693 }
3694
3695 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3696 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3697 return strlen(buf);
3698 }
3699
89f8b33c 3700 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3701 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3702 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3703 }
3704
3705 spin_lock_irqsave(shost->host_lock, lock_flags);
3706 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3707 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3708 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3709 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3710 ioa_cfg->iopoll_weight, ipr_iopoll);
3711 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3712 }
3713 }
3714 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3715
3716 return strlen(buf);
3717}
3718
3719static struct device_attribute ipr_iopoll_weight_attr = {
3720 .attr = {
3721 .name = "iopoll_weight",
3722 .mode = S_IRUGO | S_IWUSR,
3723 },
3724 .show = ipr_show_iopoll_weight,
3725 .store = ipr_store_iopoll_weight
3726};
3727
1da177e4
LT		 3728/**
3729 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3730 * @buf_len: buffer length
3731 *
3732 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3733 * list to use for microcode download
3734 *
3735 * Return value:
3736 * pointer to sglist / NULL on failure
3737 **/
3738static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3739{
3740 int sg_size, order, bsize_elem, num_elem, i, j;
3741 struct ipr_sglist *sglist;
3742 struct scatterlist *scatterlist;
3743 struct page *page;
3744
3745 /* Get the minimum size per scatter/gather element */
3746 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3747
3748 /* Get the actual size per element */
3749 order = get_order(sg_size);
3750
3751 /* Determine the actual number of bytes per element */
3752 bsize_elem = PAGE_SIZE * (1 << order);
3753
3754 /* Determine the actual number of sg entries needed */
3755 if (buf_len % bsize_elem)
3756 num_elem = (buf_len / bsize_elem) + 1;
3757 else
3758 num_elem = buf_len / bsize_elem;
3759
3760 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3761 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3762 (sizeof(struct scatterlist) * (num_elem - 1)),
3763 GFP_KERNEL);
3764
3765 if (sglist == NULL) {
3766 ipr_trace;
3767 return NULL;
3768 }
3769
1da177e4 3770 scatterlist = sglist->scatterlist;
45711f1a 3771 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3772
3773 sglist->order = order;
3774 sglist->num_sg = num_elem;
3775
3776 /* Allocate a bunch of sg elements */
3777 for (i = 0; i < num_elem; i++) {
3778 page = alloc_pages(GFP_KERNEL, order);
3779 if (!page) {
3780 ipr_trace;
3781
3782 /* Free up what we already allocated */
3783 for (j = i - 1; j >= 0; j--)
45711f1a 3784 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3785 kfree(sglist);
3786 return NULL;
3787 }
3788
642f1490 3789 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3790 }
3791
3792 return sglist;
3793}
3794
3795/**
3796 * ipr_free_ucode_buffer - Frees a microcode download buffer
3797 * @p_dnld: scatter/gather list pointer
3798 *
3799 * Free a DMA'able ucode download buffer previously allocated with
3800 * ipr_alloc_ucode_buffer
3801 *
3802 * Return value:
3803 * nothing
3804 **/
3805static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3806{
3807 int i;
3808
3809 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3810 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3811
3812 kfree(sglist);
3813}
3814
3815/**
3816 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3817 * @sglist: scatter/gather list pointer
3818 * @buffer: buffer pointer
3819 * @len: buffer length
3820 *
3821 * Copy a microcode image from a user buffer into a buffer allocated by
3822 * ipr_alloc_ucode_buffer
3823 *
3824 * Return value:
3825 * 0 on success / other on failure
3826 **/
3827static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3828 u8 *buffer, u32 len)
3829{
3830 int bsize_elem, i, result = 0;
3831 struct scatterlist *scatterlist;
3832 void *kaddr;
3833
3834 /* Determine the actual number of bytes per element */
3835 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3836
3837 scatterlist = sglist->scatterlist;
3838
3839 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3840 struct page *page = sg_page(&scatterlist[i]);
3841
3842 kaddr = kmap(page);
1da177e4 3843 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3844 kunmap(page);
1da177e4
LT		 3845
3846 scatterlist[i].length = bsize_elem;
3847
3848 if (result != 0) {
3849 ipr_trace;
3850 return result;
3851 }
3852 }
3853
3854 if (len % bsize_elem) {
45711f1a
JA		 3855 struct page *page = sg_page(&scatterlist[i]);
3856
3857 kaddr = kmap(page);
1da177e4 3858 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3859 kunmap(page);
1da177e4
LT		 3860
3861 scatterlist[i].length = len % bsize_elem;
3862 }
3863
3864 sglist->buffer_len = len;
3865 return result;
3866}
3867
a32c055f
WB		 3868/**
3869 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3870 * @ipr_cmd: ipr command struct
3871 * @sglist: scatter/gather list
3872 *
3873 * Builds a microcode download IOA data list (IOADL).
3874 *
3875 **/
3876static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3877 struct ipr_sglist *sglist)
3878{
3879 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3880 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3881 struct scatterlist *scatterlist = sglist->scatterlist;
3882 int i;
3883
3884 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3885 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3886 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3887
3888 ioarcb->ioadl_len =
3889 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3890 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3891 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3892 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3893 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3894 }
3895
3896 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3897}
3898
1da177e4 3899/**
12baa420 3900 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3901 * @ipr_cmd: ipr command struct
3902 * @sglist: scatter/gather list
1da177e4 3903 *
12baa420 3904 * Builds a microcode download IOA data list (IOADL).
1da177e4 3905 *
1da177e4 3906 **/
12baa420 3907static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3908 struct ipr_sglist *sglist)
1da177e4 3909{
1da177e4 3910 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3911 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3912 struct scatterlist *scatterlist = sglist->scatterlist;
3913 int i;
3914
12baa420 3915 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3916 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3917 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3918
3919 ioarcb->ioadl_len =
1da177e4
LT		 3920 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3921
3922 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3923 ioadl[i].flags_and_data_len =
3924 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3925 ioadl[i].address =
3926 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3927 }
3928
12baa420 3929 ioadl[i-1].flags_and_data_len |=
3930 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3931}
3932
3933/**
3934 * ipr_update_ioa_ucode - Update IOA's microcode
3935 * @ioa_cfg: ioa config struct
3936 * @sglist: scatter/gather list
3937 *
3938 * Initiate an adapter reset to update the IOA's microcode
3939 *
3940 * Return value:
3941 * 0 on success / -EIO on failure
3942 **/
3943static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3944 struct ipr_sglist *sglist)
3945{
3946 unsigned long lock_flags;
3947
3948 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3949 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3950 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3951 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3952 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3953 }
12baa420 3954
3955 if (ioa_cfg->ucode_sglist) {
3956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3957 dev_err(&ioa_cfg->pdev->dev,
3958 "Microcode download already in progress\n");
3959 return -EIO;
1da177e4 3960 }
12baa420 3961
d73341bf
AB		 3962 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3963 sglist->scatterlist, sglist->num_sg,
3964 DMA_TO_DEVICE);
12baa420 3965
3966 if (!sglist->num_dma_sg) {
3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3968 dev_err(&ioa_cfg->pdev->dev,
3969 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3970 return -EIO;
3971 }
3972
12baa420 3973 ioa_cfg->ucode_sglist = sglist;
3974 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3975 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3976 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3977
3978 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3979 ioa_cfg->ucode_sglist = NULL;
3980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3981 return 0;
3982}
3983
3984/**
3985 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3986 * @class_dev: device struct
3987 * @buf: buffer
3988 * @count: buffer size
1da177e4
LT		 3989 *
3990 * This function will update the firmware on the adapter.
3991 *
3992 * Return value:
3993 * count on success / other on failure
3994 **/
ee959b00
TJ		 3995static ssize_t ipr_store_update_fw(struct device *dev,
3996 struct device_attribute *attr,
3997 const char *buf, size_t count)
1da177e4 3998{
ee959b00 3999 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 4000 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4001 struct ipr_ucode_image_header *image_hdr;
4002 const struct firmware *fw_entry;
4003 struct ipr_sglist *sglist;
1da177e4
LT		 4004 char fname[100];
4005 char *src;
d63c7dd5 4006 int result, dnld_size;
1da177e4
LT		 4007
4008 if (!capable(CAP_SYS_ADMIN))
4009 return -EACCES;
4010
d63c7dd5 4011 snprintf(fname, sizeof(fname), "%s", buf);
1da177e4 4012
203fa3fe 4013 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 4014 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4015 return -EIO;
4016 }
4017
4018 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4019
1da177e4
LT		 4020 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4021 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4022 sglist = ipr_alloc_ucode_buffer(dnld_size);
4023
4024 if (!sglist) {
4025 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4026 release_firmware(fw_entry);
4027 return -ENOMEM;
4028 }
4029
4030 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4031
4032 if (result) {
4033 dev_err(&ioa_cfg->pdev->dev,
4034 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4035 goto out;
1da177e4
LT		 4036 }
4037
14ed9cc7
WB		 4038 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4039
12baa420 4040 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4041
12baa420 4042 if (!result)
4043 result = count;
4044out:
1da177e4
LT		 4045 ipr_free_ucode_buffer(sglist);
4046 release_firmware(fw_entry);
12baa420 4047 return result;
1da177e4
LT		 4048}
4049
ee959b00 4050static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4051 .attr = {
4052 .name = "update_fw",
4053 .mode = S_IWUSR,
4054 },
4055 .store = ipr_store_update_fw
4056};
4057
75576bb9
WB		 4058/**
4059 * ipr_show_fw_type - Show the adapter's firmware type.
4060 * @dev: class device struct
4061 * @buf: buffer
4062 *
4063 * Return value:
4064 * number of bytes printed to buffer
4065 **/
4066static ssize_t ipr_show_fw_type(struct device *dev,
4067 struct device_attribute *attr, char *buf)
4068{
4069 struct Scsi_Host *shost = class_to_shost(dev);
4070 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4071 unsigned long lock_flags = 0;
4072 int len;
4073
4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4075 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4076 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4077 return len;
4078}
4079
4080static struct device_attribute ipr_ioa_fw_type_attr = {
4081 .attr = {
4082 .name = "fw_type",
4083 .mode = S_IRUGO,
4084 },
4085 .show = ipr_show_fw_type
4086};
4087
ee959b00 4088static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4089 &ipr_fw_version_attr,
4090 &ipr_log_level_attr,
4091 &ipr_diagnostics_attr,
f37eb54b 4092 &ipr_ioa_state_attr,
1da177e4
LT		 4093 &ipr_ioa_reset_attr,
4094 &ipr_update_fw_attr,
75576bb9 4095 &ipr_ioa_fw_type_attr,
b53d124a 4096 &ipr_iopoll_weight_attr,
1da177e4
LT		 4097 NULL,
4098};
4099
4100#ifdef CONFIG_SCSI_IPR_DUMP
4101/**
4102 * ipr_read_dump - Dump the adapter
2c3c8bea 4103 * @filp: open sysfs file
1da177e4 4104 * @kobj: kobject struct
91a69029 4105 * @bin_attr: bin_attribute struct
1da177e4
LT		 4106 * @buf: buffer
4107 * @off: offset
4108 * @count: buffer size
4109 *
4110 * Return value:
4111 * number of bytes printed to buffer
4112 **/
2c3c8bea 4113static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4114 struct bin_attribute *bin_attr,
4115 char *buf, loff_t off, size_t count)
1da177e4 4116{
ee959b00 4117 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4118 struct Scsi_Host *shost = class_to_shost(cdev);
4119 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4120 struct ipr_dump *dump;
4121 unsigned long lock_flags = 0;
4122 char *src;
4d4dd706 4123 int len, sdt_end;
1da177e4
LT		 4124 size_t rc = count;
4125
4126 if (!capable(CAP_SYS_ADMIN))
4127 return -EACCES;
4128
4129 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4130 dump = ioa_cfg->dump;
4131
4132 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4133 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4134 return 0;
4135 }
4136 kref_get(&dump->kref);
4137 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4138
4139 if (off > dump->driver_dump.hdr.len) {
4140 kref_put(&dump->kref, ipr_release_dump);
4141 return 0;
4142 }
4143
4144 if (off + count > dump->driver_dump.hdr.len) {
4145 count = dump->driver_dump.hdr.len - off;
4146 rc = count;
4147 }
4148
4149 if (count && off < sizeof(dump->driver_dump)) {
4150 if (off + count > sizeof(dump->driver_dump))
4151 len = sizeof(dump->driver_dump) - off;
4152 else
4153 len = count;
4154 src = (u8 *)&dump->driver_dump + off;
4155 memcpy(buf, src, len);
4156 buf += len;
4157 off += len;
4158 count -= len;
4159 }
4160
4161 off -= sizeof(dump->driver_dump);
4162
4d4dd706
KSS		 4163 if (ioa_cfg->sis64)
4164 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4165 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4166 sizeof(struct ipr_sdt_entry));
4167 else
4168 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4169 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4170
4171 if (count && off < sdt_end) {
4172 if (off + count > sdt_end)
4173 len = sdt_end - off;
1da177e4
LT		 4174 else
4175 len = count;
4176 src = (u8 *)&dump->ioa_dump + off;
4177 memcpy(buf, src, len);
4178 buf += len;
4179 off += len;
4180 count -= len;
4181 }
4182
4d4dd706 4183 off -= sdt_end;
1da177e4
LT		 4184
4185 while (count) {
4186 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4187 len = PAGE_ALIGN(off) - off;
4188 else
4189 len = count;
4190 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4191 src += off & ~PAGE_MASK;
4192 memcpy(buf, src, len);
4193 buf += len;
4194 off += len;
4195 count -= len;
4196 }
4197
4198 kref_put(&dump->kref, ipr_release_dump);
4199 return rc;
4200}
4201
4202/**
4203 * ipr_alloc_dump - Prepare for adapter dump
4204 * @ioa_cfg: ioa config struct
4205 *
4206 * Return value:
4207 * 0 on success / other on failure
4208 **/
4209static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4210{
4211 struct ipr_dump *dump;
4d4dd706 4212 __be32 **ioa_data;
1da177e4
LT		 4213 unsigned long lock_flags = 0;
4214
0bc42e35 4215 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4216
4217 if (!dump) {
4218 ipr_err("Dump memory allocation failed\n");
4219 return -ENOMEM;
4220 }
4221
4d4dd706
KSS		 4222 if (ioa_cfg->sis64)
4223 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4224 else
4225 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4226
4227 if (!ioa_data) {
4228 ipr_err("Dump memory allocation failed\n");
4229 kfree(dump);
4230 return -ENOMEM;
4231 }
4232
4233 dump->ioa_dump.ioa_data = ioa_data;
4234
1da177e4
LT		 4235 kref_init(&dump->kref);
4236 dump->ioa_cfg = ioa_cfg;
4237
4238 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4239
4240 if (INACTIVE != ioa_cfg->sdt_state) {
4241 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4242 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4243 kfree(dump);
4244 return 0;
4245 }
4246
4247 ioa_cfg->dump = dump;
4248 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4249 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4250 ioa_cfg->dump_taken = 1;
4251 schedule_work(&ioa_cfg->work_q);
4252 }
4253 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4254
1da177e4
LT		 4255 return 0;
4256}
4257
4258/**
4259 * ipr_free_dump - Free adapter dump memory
4260 * @ioa_cfg: ioa config struct
4261 *
4262 * Return value:
4263 * 0 on success / other on failure
4264 **/
4265static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4266{
4267 struct ipr_dump *dump;
4268 unsigned long lock_flags = 0;
4269
4270 ENTER;
4271
4272 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4273 dump = ioa_cfg->dump;
4274 if (!dump) {
4275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4276 return 0;
4277 }
4278
4279 ioa_cfg->dump = NULL;
4280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4281
4282 kref_put(&dump->kref, ipr_release_dump);
4283
4284 LEAVE;
4285 return 0;
4286}
4287
4288/**
4289 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4290 * @filp: open sysfs file
1da177e4 4291 * @kobj: kobject struct
91a69029 4292 * @bin_attr: bin_attribute struct
1da177e4
LT		 4293 * @buf: buffer
4294 * @off: offset
4295 * @count: buffer size
4296 *
4297 * Return value:
4298 * number of bytes printed to buffer
4299 **/
2c3c8bea 4300static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4301 struct bin_attribute *bin_attr,
4302 char *buf, loff_t off, size_t count)
1da177e4 4303{
ee959b00 4304 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4305 struct Scsi_Host *shost = class_to_shost(cdev);
4306 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4307 int rc;
4308
4309 if (!capable(CAP_SYS_ADMIN))
4310 return -EACCES;
4311
4312 if (buf[0] == '1')
4313 rc = ipr_alloc_dump(ioa_cfg);
4314 else if (buf[0] == '0')
4315 rc = ipr_free_dump(ioa_cfg);
4316 else
4317 return -EINVAL;
4318
4319 if (rc)
4320 return rc;
4321 else
4322 return count;
4323}
4324
4325static struct bin_attribute ipr_dump_attr = {
4326 .attr = {
4327 .name = "dump",
4328 .mode = S_IRUSR | S_IWUSR,
4329 },
4330 .size = 0,
4331 .read = ipr_read_dump,
4332 .write = ipr_write_dump
4333};
4334#else
4335static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4336#endif
4337
4338/**
4339 * ipr_change_queue_depth - Change the device's queue depth
4340 * @sdev: scsi device struct
4341 * @qdepth: depth to set
e881a172 4342 * @reason: calling context
1da177e4
LT		 4343 *
4344 * Return value:
4345 * actual depth set
4346 **/
db5ed4df 4347static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 4348{
35a39691
BK		 4349 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4350 struct ipr_resource_entry *res;
4351 unsigned long lock_flags = 0;
4352
4353 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4354 res = (struct ipr_resource_entry *)sdev->hostdata;
4355
4356 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4357 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4358 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4359
db5ed4df 4360 scsi_change_queue_depth(sdev, qdepth);
1da177e4
LT		 4361 return sdev->queue_depth;
4362}
4363
1da177e4
LT		 4364/**
4365 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4366 * @dev: device struct
46d74563 4367 * @attr: device attribute structure
1da177e4
LT		 4368 * @buf: buffer
4369 *
4370 * Return value:
4371 * number of bytes printed to buffer
4372 **/
10523b3b 4373static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4374{
4375 struct scsi_device *sdev = to_scsi_device(dev);
4376 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4377 struct ipr_resource_entry *res;
4378 unsigned long lock_flags = 0;
4379 ssize_t len = -ENXIO;
4380
4381 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4382 res = (struct ipr_resource_entry *)sdev->hostdata;
4383 if (res)
3e7ebdfa 4384 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4385 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4386 return len;
4387}
4388
4389static struct device_attribute ipr_adapter_handle_attr = {
4390 .attr = {
4391 .name = "adapter_handle",
4392 .mode = S_IRUSR,
4393 },
4394 .show = ipr_show_adapter_handle
4395};
4396
3e7ebdfa 4397/**
5adcbeb3
WB		 4398 * ipr_show_resource_path - Show the resource path or the resource address for
4399 * this device.
3e7ebdfa 4400 * @dev: device struct
46d74563 4401 * @attr: device attribute structure
3e7ebdfa
WB		 4402 * @buf: buffer
4403 *
4404 * Return value:
4405 * number of bytes printed to buffer
4406 **/
4407static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4408{
4409 struct scsi_device *sdev = to_scsi_device(dev);
4410 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4411 struct ipr_resource_entry *res;
4412 unsigned long lock_flags = 0;
4413 ssize_t len = -ENXIO;
4414 char buffer[IPR_MAX_RES_PATH_LENGTH];
4415
4416 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4417 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4418 if (res && ioa_cfg->sis64)
3e7ebdfa 4419 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4420 __ipr_format_res_path(res->res_path, buffer,
4421 sizeof(buffer)));
5adcbeb3
WB		 4422 else if (res)
4423 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4424 res->bus, res->target, res->lun);
4425
3e7ebdfa
WB		 4426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4427 return len;
4428}
4429
4430static struct device_attribute ipr_resource_path_attr = {
4431 .attr = {
4432 .name = "resource_path",
75576bb9 4433 .mode = S_IRUGO,
3e7ebdfa
WB		 4434 },
4435 .show = ipr_show_resource_path
4436};
4437
46d74563
WB		 4438/**
4439 * ipr_show_device_id - Show the device_id for this device.
4440 * @dev: device struct
4441 * @attr: device attribute structure
4442 * @buf: buffer
4443 *
4444 * Return value:
4445 * number of bytes printed to buffer
4446 **/
4447static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4448{
4449 struct scsi_device *sdev = to_scsi_device(dev);
4450 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4451 struct ipr_resource_entry *res;
4452 unsigned long lock_flags = 0;
4453 ssize_t len = -ENXIO;
4454
4455 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4456 res = (struct ipr_resource_entry *)sdev->hostdata;
4457 if (res && ioa_cfg->sis64)
bb8647e8 4458 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
46d74563
WB		 4459 else if (res)
4460 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4461
4462 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4463 return len;
4464}
4465
4466static struct device_attribute ipr_device_id_attr = {
4467 .attr = {
4468 .name = "device_id",
4469 .mode = S_IRUGO,
4470 },
4471 .show = ipr_show_device_id
4472};
4473
75576bb9
WB		 4474/**
4475 * ipr_show_resource_type - Show the resource type for this device.
4476 * @dev: device struct
46d74563 4477 * @attr: device attribute structure
75576bb9
WB		 4478 * @buf: buffer
4479 *
4480 * Return value:
4481 * number of bytes printed to buffer
4482 **/
4483static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4484{
4485 struct scsi_device *sdev = to_scsi_device(dev);
4486 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4487 struct ipr_resource_entry *res;
4488 unsigned long lock_flags = 0;
4489 ssize_t len = -ENXIO;
4490
4491 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4492 res = (struct ipr_resource_entry *)sdev->hostdata;
4493
4494 if (res)
4495 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4496
4497 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4498 return len;
4499}
4500
4501static struct device_attribute ipr_resource_type_attr = {
4502 .attr = {
4503 .name = "resource_type",
4504 .mode = S_IRUGO,
4505 },
4506 .show = ipr_show_resource_type
4507};
4508
f8ee25d7
WX		 4509/**
4510 * ipr_show_raw_mode - Show the adapter's raw mode
4511 * @dev: class device struct
4512 * @buf: buffer
4513 *
4514 * Return value:
4515 * number of bytes printed to buffer
4516 **/
4517static ssize_t ipr_show_raw_mode(struct device *dev,
4518 struct device_attribute *attr, char *buf)
4519{
4520 struct scsi_device *sdev = to_scsi_device(dev);
4521 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4522 struct ipr_resource_entry *res;
4523 unsigned long lock_flags = 0;
4524 ssize_t len;
4525
4526 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4527 res = (struct ipr_resource_entry *)sdev->hostdata;
4528 if (res)
4529 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4530 else
4531 len = -ENXIO;
4532 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4533 return len;
4534}
4535
4536/**
4537 * ipr_store_raw_mode - Change the adapter's raw mode
4538 * @dev: class device struct
4539 * @buf: buffer
4540 *
4541 * Return value:
4542 * number of bytes printed to buffer
4543 **/
4544static ssize_t ipr_store_raw_mode(struct device *dev,
4545 struct device_attribute *attr,
4546 const char *buf, size_t count)
4547{
4548 struct scsi_device *sdev = to_scsi_device(dev);
4549 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4550 struct ipr_resource_entry *res;
4551 unsigned long lock_flags = 0;
4552 ssize_t len;
4553
4554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4555 res = (struct ipr_resource_entry *)sdev->hostdata;
4556 if (res) {
e35d7f27 4557 if (ipr_is_af_dasd_device(res)) {
f8ee25d7
WX		 4558 res->raw_mode = simple_strtoul(buf, NULL, 10);
4559 len = strlen(buf);
4560 if (res->sdev)
4561 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4562 res->raw_mode ? "enabled" : "disabled");
4563 } else
4564 len = -EINVAL;
4565 } else
4566 len = -ENXIO;
4567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4568 return len;
4569}
4570
4571static struct device_attribute ipr_raw_mode_attr = {
4572 .attr = {
4573 .name = "raw_mode",
4574 .mode = S_IRUGO | S_IWUSR,
4575 },
4576 .show = ipr_show_raw_mode,
4577 .store = ipr_store_raw_mode
4578};
4579
1da177e4
LT		 4580static struct device_attribute *ipr_dev_attrs[] = {
4581 &ipr_adapter_handle_attr,
3e7ebdfa 4582 &ipr_resource_path_attr,
46d74563 4583 &ipr_device_id_attr,
75576bb9 4584 &ipr_resource_type_attr,
f8ee25d7 4585 &ipr_raw_mode_attr,
1da177e4
LT		 4586 NULL,
4587};
4588
4589/**
4590 * ipr_biosparam - Return the HSC mapping
4591 * @sdev: scsi device struct
4592 * @block_device: block device pointer
4593 * @capacity: capacity of the device
4594 * @parm: Array containing returned HSC values.
4595 *
4596 * This function generates the HSC parms that fdisk uses.
4597 * We want to make sure we return something that places partitions
4598 * on 4k boundaries for best performance with the IOA.
4599 *
4600 * Return value:
4601 * 0 on success
4602 **/
4603static int ipr_biosparam(struct scsi_device *sdev,
4604 struct block_device *block_device,
4605 sector_t capacity, int *parm)
4606{
4607 int heads, sectors;
4608 sector_t cylinders;
4609
4610 heads = 128;
4611 sectors = 32;
4612
4613 cylinders = capacity;
4614 sector_div(cylinders, (128 * 32));
4615
4616 /* return result */
4617 parm[0] = heads;
4618 parm[1] = sectors;
4619 parm[2] = cylinders;
4620
4621 return 0;
4622}
4623
35a39691
BK		 4624/**
4625 * ipr_find_starget - Find target based on bus/target.
4626 * @starget: scsi target struct
4627 *
4628 * Return value:
4629 * resource entry pointer if found / NULL if not found
4630 **/
4631static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4632{
4633 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4634 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4635 struct ipr_resource_entry *res;
4636
4637 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4638 if ((res->bus == starget->channel) &&
0ee1d714 4639 (res->target == starget->id)) {
35a39691
BK		 4640 return res;
4641 }
4642 }
4643
4644 return NULL;
4645}
4646
4647static struct ata_port_info sata_port_info;
4648
4649/**
4650 * ipr_target_alloc - Prepare for commands to a SCSI target
4651 * @starget: scsi target struct
4652 *
4653 * If the device is a SATA device, this function allocates an
4654 * ATA port with libata, else it does nothing.
4655 *
4656 * Return value:
4657 * 0 on success / non-0 on failure
4658 **/
4659static int ipr_target_alloc(struct scsi_target *starget)
4660{
4661 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4662 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4663 struct ipr_sata_port *sata_port;
4664 struct ata_port *ap;
4665 struct ipr_resource_entry *res;
4666 unsigned long lock_flags;
4667
4668 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4669 res = ipr_find_starget(starget);
4670 starget->hostdata = NULL;
4671
4672 if (res && ipr_is_gata(res)) {
4673 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4674 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4675 if (!sata_port)
4676 return -ENOMEM;
4677
4678 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4679 if (ap) {
4680 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4681 sata_port->ioa_cfg = ioa_cfg;
4682 sata_port->ap = ap;
4683 sata_port->res = res;
4684
4685 res->sata_port = sata_port;
4686 ap->private_data = sata_port;
4687 starget->hostdata = sata_port;
4688 } else {
4689 kfree(sata_port);
4690 return -ENOMEM;
4691 }
4692 }
4693 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4694
4695 return 0;
4696}
4697
4698/**
4699 * ipr_target_destroy - Destroy a SCSI target
4700 * @starget: scsi target struct
4701 *
4702 * If the device was a SATA device, this function frees the libata
4703 * ATA port, else it does nothing.
4704 *
4705 **/
4706static void ipr_target_destroy(struct scsi_target *starget)
4707{
4708 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4709 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4710 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4711
4712 if (ioa_cfg->sis64) {
0ee1d714
BK		 4713 if (!ipr_find_starget(starget)) {
4714 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4715 clear_bit(starget->id, ioa_cfg->array_ids);
4716 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4717 clear_bit(starget->id, ioa_cfg->vset_ids);
4718 else if (starget->channel == 0)
4719 clear_bit(starget->id, ioa_cfg->target_ids);
4720 }
3e7ebdfa 4721 }
35a39691
BK		 4722
4723 if (sata_port) {
4724 starget->hostdata = NULL;
4725 ata_sas_port_destroy(sata_port->ap);
4726 kfree(sata_port);
4727 }
4728}
4729
4730/**
4731 * ipr_find_sdev - Find device based on bus/target/lun.
4732 * @sdev: scsi device struct
4733 *
4734 * Return value:
4735 * resource entry pointer if found / NULL if not found
4736 **/
4737static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4738{
4739 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4740 struct ipr_resource_entry *res;
4741
4742 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4743 if ((res->bus == sdev->channel) &&
4744 (res->target == sdev->id) &&
4745 (res->lun == sdev->lun))
35a39691
BK		 4746 return res;
4747 }
4748
4749 return NULL;
4750}
4751
1da177e4
LT		 4752/**
4753 * ipr_slave_destroy - Unconfigure a SCSI device
4754 * @sdev: scsi device struct
4755 *
4756 * Return value:
4757 * nothing
4758 **/
4759static void ipr_slave_destroy(struct scsi_device *sdev)
4760{
4761 struct ipr_resource_entry *res;
4762 struct ipr_ioa_cfg *ioa_cfg;
4763 unsigned long lock_flags = 0;
4764
4765 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4766
4767 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4768 res = (struct ipr_resource_entry *) sdev->hostdata;
4769 if (res) {
35a39691 4770 if (res->sata_port)
3e4ec344 4771 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4772 sdev->hostdata = NULL;
4773 res->sdev = NULL;
35a39691 4774 res->sata_port = NULL;
1da177e4
LT		 4775 }
4776 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4777}
4778
4779/**
4780 * ipr_slave_configure - Configure a SCSI device
4781 * @sdev: scsi device struct
4782 *
4783 * This function configures the specified scsi device.
4784 *
4785 * Return value:
4786 * 0 on success
4787 **/
4788static int ipr_slave_configure(struct scsi_device *sdev)
4789{
4790 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4791 struct ipr_resource_entry *res;
dd406ef8 4792 struct ata_port *ap = NULL;
1da177e4 4793 unsigned long lock_flags = 0;
3e7ebdfa 4794 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4795
4796 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4797 res = sdev->hostdata;
4798 if (res) {
4799 if (ipr_is_af_dasd_device(res))
4800 sdev->type = TYPE_RAID;
0726ce26 4801 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4802 sdev->scsi_level = 4;
0726ce26 4803 sdev->no_uld_attach = 1;
4804 }
1da177e4 4805 if (ipr_is_vset_device(res)) {
60654e25 4806 sdev->scsi_level = SCSI_SPC_3;
242f9dcb
JA		 4807 blk_queue_rq_timeout(sdev->request_queue,
4808 IPR_VSET_RW_TIMEOUT);
086fa5ff 4809 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4810 }
dd406ef8
BK		 4811 if (ipr_is_gata(res) && res->sata_port)
4812 ap = res->sata_port->ap;
4813 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4814
4815 if (ap) {
db5ed4df 4816 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4817 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4818 }
4819
3e7ebdfa
WB		 4820 if (ioa_cfg->sis64)
4821 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4822 ipr_format_res_path(ioa_cfg,
4823 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4824 return 0;
1da177e4
LT		 4825 }
4826 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4827 return 0;
4828}
4829
35a39691
BK		 4830/**
4831 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4832 * @sdev: scsi device struct
4833 *
4834 * This function initializes an ATA port so that future commands
4835 * sent through queuecommand will work.
4836 *
4837 * Return value:
4838 * 0 on success
4839 **/
4840static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4841{
4842 struct ipr_sata_port *sata_port = NULL;
4843 int rc = -ENXIO;
4844
4845 ENTER;
4846 if (sdev->sdev_target)
4847 sata_port = sdev->sdev_target->hostdata;
b2024459 4848 if (sata_port) {
35a39691 4849 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4850 if (rc == 0)
4851 rc = ata_sas_sync_probe(sata_port->ap);
4852 }
4853
35a39691
BK		 4854 if (rc)
4855 ipr_slave_destroy(sdev);
4856
4857 LEAVE;
4858 return rc;
4859}
4860
1da177e4
LT		 4861/**
4862 * ipr_slave_alloc - Prepare for commands to a device.
4863 * @sdev: scsi device struct
4864 *
4865 * This function saves a pointer to the resource entry
4866 * in the scsi device struct if the device exists. We
4867 * can then use this pointer in ipr_queuecommand when
4868 * handling new commands.
4869 *
4870 * Return value:
692aebfc 4871 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4872 **/
4873static int ipr_slave_alloc(struct scsi_device *sdev)
4874{
4875 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4876 struct ipr_resource_entry *res;
4877 unsigned long lock_flags;
692aebfc 4878 int rc = -ENXIO;
1da177e4
LT		 4879
4880 sdev->hostdata = NULL;
4881
4882 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4883
35a39691
BK		 4884 res = ipr_find_sdev(sdev);
4885 if (res) {
4886 res->sdev = sdev;
4887 res->add_to_ml = 0;
4888 res->in_erp = 0;
4889 sdev->hostdata = res;
4890 if (!ipr_is_naca_model(res))
4891 res->needs_sync_complete = 1;
4892 rc = 0;
4893 if (ipr_is_gata(res)) {
4894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4895 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4896 }
4897 }
4898
4899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4900
692aebfc 4901 return rc;
1da177e4
LT		 4902}
4903
6cdb0817
BK		 4904/**
4905 * ipr_match_lun - Match function for specified LUN
4906 * @ipr_cmd: ipr command struct
4907 * @device: device to match (sdev)
4908 *
4909 * Returns:
4910 * 1 if command matches sdev / 0 if command does not match sdev
4911 **/
4912static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
4913{
4914 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
4915 return 1;
4916 return 0;
4917}
4918
4919/**
4920 * ipr_wait_for_ops - Wait for matching commands to complete
4921 * @ipr_cmd: ipr command struct
4922 * @device: device to match (sdev)
4923 * @match: match function to use
4924 *
4925 * Returns:
4926 * SUCCESS / FAILED
4927 **/
4928static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
4929 int (*match)(struct ipr_cmnd *, void *))
4930{
4931 struct ipr_cmnd *ipr_cmd;
4932 int wait;
4933 unsigned long flags;
4934 struct ipr_hrr_queue *hrrq;
4935 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
4936 DECLARE_COMPLETION_ONSTACK(comp);
4937
4938 ENTER;
4939 do {
4940 wait = 0;
4941
4942 for_each_hrrq(hrrq, ioa_cfg) {
4943 spin_lock_irqsave(hrrq->lock, flags);
4944 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4945 if (match(ipr_cmd, device)) {
4946 ipr_cmd->eh_comp = &comp;
4947 wait++;
4948 }
4949 }
4950 spin_unlock_irqrestore(hrrq->lock, flags);
4951 }
4952
4953 if (wait) {
4954 timeout = wait_for_completion_timeout(&comp, timeout);
4955
4956 if (!timeout) {
4957 wait = 0;
4958
4959 for_each_hrrq(hrrq, ioa_cfg) {
4960 spin_lock_irqsave(hrrq->lock, flags);
4961 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
4962 if (match(ipr_cmd, device)) {
4963 ipr_cmd->eh_comp = NULL;
4964 wait++;
4965 }
4966 }
4967 spin_unlock_irqrestore(hrrq->lock, flags);
4968 }
4969
4970 if (wait)
4971 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
4972 LEAVE;
4973 return wait ? FAILED : SUCCESS;
4974 }
4975 }
4976 } while (wait);
4977
4978 LEAVE;
4979 return SUCCESS;
4980}
4981
70233ac5 4982static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4983{
4984 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4985 unsigned long lock_flags = 0;
4986 int rc = SUCCESS;
1da177e4
LT		 4987
4988 ENTER;
70233ac5 4989 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4990 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4991
96b04db9 4992 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4993 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4994 dev_err(&ioa_cfg->pdev->dev,
4995 "Adapter being reset as a result of error recovery.\n");
1da177e4 4996
a92fa25c
KSS		 4997 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4998 ioa_cfg->sdt_state = GET_DUMP;
4999 }
1da177e4 5000
70233ac5 5001 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5002 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5003 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 5004
70233ac5 5005 /* If we got hit with a host reset while we were already resetting
5006 the adapter for some reason, and the reset failed. */
5007 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5008 ipr_trace;
5009 rc = FAILED;
5010 }
df0ae249 5011
70233ac5 5012 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5013 LEAVE;
df0ae249
JG		 5014 return rc;
5015}
5016
c6513096
BK		 5017/**
5018 * ipr_device_reset - Reset the device
5019 * @ioa_cfg: ioa config struct
5020 * @res: resource entry struct
5021 *
5022 * This function issues a device reset to the affected device.
5023 * If the device is a SCSI device, a LUN reset will be sent
5024 * to the device first. If that does not work, a target reset
35a39691
BK		 5025 * will be sent. If the device is a SATA device, a PHY reset will
5026 * be sent.
c6513096
BK		 5027 *
5028 * Return value:
5029 * 0 on success / non-zero on failure
5030 **/
5031static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5032 struct ipr_resource_entry *res)
5033{
5034 struct ipr_cmnd *ipr_cmd;
5035 struct ipr_ioarcb *ioarcb;
5036 struct ipr_cmd_pkt *cmd_pkt;
35a39691 5037 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 5038 u32 ioasc;
5039
5040 ENTER;
5041 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5042 ioarcb = &ipr_cmd->ioarcb;
5043 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 5044
5045 if (ipr_cmd->ioa_cfg->sis64) {
5046 regs = &ipr_cmd->i.ata_ioadl.regs;
5047 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5048 } else
5049 regs = &ioarcb->u.add_data.u.regs;
c6513096 5050
3e7ebdfa 5051 ioarcb->res_handle = res->res_handle;
c6513096
BK		 5052 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5053 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 5054 if (ipr_is_gata(res)) {
5055 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 5056 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 5057 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5058 }
c6513096
BK		 5059
5060 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 5061 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 5062 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 5063 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5064 if (ipr_cmd->ioa_cfg->sis64)
5065 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5066 sizeof(struct ipr_ioasa_gata));
5067 else
5068 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5069 sizeof(struct ipr_ioasa_gata));
5070 }
c6513096
BK		 5071
5072 LEAVE;
203fa3fe 5073 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 5074}
5075
35a39691
BK		 5076/**
5077 * ipr_sata_reset - Reset the SATA port
cc0680a5 5078 * @link: SATA link to reset
35a39691
BK		 5079 * @classes: class of the attached device
5080 *
cc0680a5 5081 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 5082 *
5083 * Return value:
5084 * 0 on success / non-zero on failure
5085 **/
cc0680a5 5086static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 5087 unsigned long deadline)
35a39691 5088{
cc0680a5 5089 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 5090 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5091 struct ipr_resource_entry *res;
5092 unsigned long lock_flags = 0;
5093 int rc = -ENXIO;
5094
5095 ENTER;
5096 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 5097 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 5098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5099 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5100 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5101 }
5102
35a39691
BK		 5103 res = sata_port->res;
5104 if (res) {
5105 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 5106 *classes = res->ata_class;
35a39691
BK		 5107 }
5108
5109 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5110 LEAVE;
5111 return rc;
5112}
5113
1da177e4
LT		 5114/**
5115 * ipr_eh_dev_reset - Reset the device
5116 * @scsi_cmd: scsi command struct
5117 *
5118 * This function issues a device reset to the affected device.
5119 * A LUN reset will be sent to the device first. If that does
5120 * not work, a target reset will be sent.
5121 *
5122 * Return value:
5123 * SUCCESS / FAILED
5124 **/
203fa3fe 5125static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5126{
5127 struct ipr_cmnd *ipr_cmd;
5128 struct ipr_ioa_cfg *ioa_cfg;
5129 struct ipr_resource_entry *res;
35a39691
BK		 5130 struct ata_port *ap;
5131 int rc = 0;
05a6538a 5132 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5133
5134 ENTER;
5135 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5136 res = scsi_cmd->device->hostdata;
5137
eeb88307 5138 if (!res)
1da177e4
LT		 5139 return FAILED;
5140
5141 /*
5142 * If we are currently going through reset/reload, return failed. This will force the
5143 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5144 * reset to complete
5145 */
5146 if (ioa_cfg->in_reset_reload)
5147 return FAILED;
56d6aa33 5148 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5149 return FAILED;
5150
05a6538a 5151 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5152 spin_lock(&hrrq->_lock);
05a6538a 5153 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5154 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5155 if (ipr_cmd->scsi_cmd)
5156 ipr_cmd->done = ipr_scsi_eh_done;
5157 if (ipr_cmd->qc)
5158 ipr_cmd->done = ipr_sata_eh_done;
5159 if (ipr_cmd->qc &&
5160 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5161 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5162 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5163 }
7402ecef 5164 }
1da177e4 5165 }
56d6aa33 5166 spin_unlock(&hrrq->_lock);
1da177e4 5167 }
1da177e4 5168 res->resetting_device = 1;
fb3ed3cb 5169 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5170
5171 if (ipr_is_gata(res) && res->sata_port) {
5172 ap = res->sata_port->ap;
5173 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5174 ata_std_error_handler(ap);
35a39691 5175 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5176
05a6538a 5177 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5178 spin_lock(&hrrq->_lock);
05a6538a 5179 list_for_each_entry(ipr_cmd,
5180 &hrrq->hrrq_pending_q, queue) {
5181 if (ipr_cmd->ioarcb.res_handle ==
5182 res->res_handle) {
5183 rc = -EIO;
5184 break;
5185 }
5af23d26 5186 }
56d6aa33 5187 spin_unlock(&hrrq->_lock);
5af23d26 5188 }
35a39691
BK		 5189 } else
5190 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5191 res->resetting_device = 0;
0b1f8d44 5192 res->reset_occurred = 1;
1da177e4 5193
1da177e4 5194 LEAVE;
203fa3fe 5195 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5196}
5197
203fa3fe 5198static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5199{
5200 int rc;
6cdb0817
BK		 5201 struct ipr_ioa_cfg *ioa_cfg;
5202
5203 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
94d0e7b8
JG		 5204
5205 spin_lock_irq(cmd->device->host->host_lock);
5206 rc = __ipr_eh_dev_reset(cmd);
5207 spin_unlock_irq(cmd->device->host->host_lock);
5208
6cdb0817
BK		 5209 if (rc == SUCCESS)
5210 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5211
94d0e7b8
JG		 5212 return rc;
5213}
5214
1da177e4
LT		 5215/**
5216 * ipr_bus_reset_done - Op done function for bus reset.
5217 * @ipr_cmd: ipr command struct
5218 *
5219 * This function is the op done function for a bus reset
5220 *
5221 * Return value:
5222 * none
5223 **/
5224static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5225{
5226 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5227 struct ipr_resource_entry *res;
5228
5229 ENTER;
3e7ebdfa
WB		 5230 if (!ioa_cfg->sis64)
5231 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5232 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5233 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5234 break;
5235 }
1da177e4 5236 }
1da177e4
LT		 5237
5238 /*
5239 * If abort has not completed, indicate the reset has, else call the
5240 * abort's done function to wake the sleeping eh thread
5241 */
5242 if (ipr_cmd->sibling->sibling)
5243 ipr_cmd->sibling->sibling = NULL;
5244 else
5245 ipr_cmd->sibling->done(ipr_cmd->sibling);
5246
05a6538a 5247 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5248 LEAVE;
5249}
5250
5251/**
5252 * ipr_abort_timeout - An abort task has timed out
5253 * @ipr_cmd: ipr command struct
5254 *
5255 * This function handles when an abort task times out. If this
5256 * happens we issue a bus reset since we have resources tied
5257 * up that must be freed before returning to the midlayer.
5258 *
5259 * Return value:
5260 * none
5261 **/
5262static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5263{
5264 struct ipr_cmnd *reset_cmd;
5265 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5266 struct ipr_cmd_pkt *cmd_pkt;
5267 unsigned long lock_flags = 0;
5268
5269 ENTER;
5270 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5271 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5273 return;
5274 }
5275
fb3ed3cb 5276 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5277 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5278 ipr_cmd->sibling = reset_cmd;
5279 reset_cmd->sibling = ipr_cmd;
5280 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5281 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5282 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5283 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5284 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5285
5286 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5287 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5288 LEAVE;
5289}
5290
5291/**
5292 * ipr_cancel_op - Cancel specified op
5293 * @scsi_cmd: scsi command struct
5294 *
5295 * This function cancels specified op.
5296 *
5297 * Return value:
5298 * SUCCESS / FAILED
5299 **/
203fa3fe 5300static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5301{
5302 struct ipr_cmnd *ipr_cmd;
5303 struct ipr_ioa_cfg *ioa_cfg;
5304 struct ipr_resource_entry *res;
5305 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5306 u32 ioasc, int_reg;
1da177e4 5307 int op_found = 0;
05a6538a 5308 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5309
5310 ENTER;
5311 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5312 res = scsi_cmd->device->hostdata;
5313
8fa728a2
JG		 5314 /* If we are currently going through reset/reload, return failed.
5315 * This will force the mid-layer to call ipr_eh_host_reset,
5316 * which will then go to sleep and wait for the reset to complete
5317 */
56d6aa33 5318 if (ioa_cfg->in_reset_reload ||
5319 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5320 return FAILED;
a92fa25c
KSS		 5321 if (!res)
5322 return FAILED;
5323
5324 /*
5325 * If we are aborting a timed out op, chances are that the timeout was caused
5326 * by a still not detected EEH error. In such cases, reading a register will
5327 * trigger the EEH recovery infrastructure.
5328 */
5329 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5330
5331 if (!ipr_is_gscsi(res))
1da177e4
LT		 5332 return FAILED;
5333
05a6538a 5334 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5335 spin_lock(&hrrq->_lock);
05a6538a 5336 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5337 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5338 ipr_cmd->done = ipr_scsi_eh_done;
5339 op_found = 1;
5340 break;
5341 }
1da177e4 5342 }
56d6aa33 5343 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5344 }
5345
5346 if (!op_found)
5347 return SUCCESS;
5348
5349 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5350 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5351 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5352 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5353 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5354 ipr_cmd->u.sdev = scsi_cmd->device;
5355
fb3ed3cb
BK		 5356 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5357 scsi_cmd->cmnd[0]);
1da177e4 5358 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5359 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5360
5361 /*
5362 * If the abort task timed out and we sent a bus reset, we will get
5363 * one the following responses to the abort
5364 */
5365 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5366 ioasc = 0;
5367 ipr_trace;
5368 }
5369
c4ee22a3 5370 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa 5371 if (!ipr_is_naca_model(res))
5372 res->needs_sync_complete = 1;
1da177e4
LT		 5373
5374 LEAVE;
203fa3fe 5375 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5376}
5377
5378/**
5379 * ipr_eh_abort - Abort a single op
5380 * @scsi_cmd: scsi command struct
5381 *
5382 * Return value:
f688f96d
BK		 5383 * 0 if scan in progress / 1 if scan is complete
5384 **/
5385static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5386{
5387 unsigned long lock_flags;
5388 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5389 int rc = 0;
5390
5391 spin_lock_irqsave(shost->host_lock, lock_flags);
5392 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5393 rc = 1;
5394 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5395 rc = 1;
5396 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5397 return rc;
5398}
5399
5400/**
5401 * ipr_eh_host_reset - Reset the host adapter
5402 * @scsi_cmd: scsi command struct
5403 *
5404 * Return value:
1da177e4
LT		 5405 * SUCCESS / FAILED
5406 **/
203fa3fe 5407static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5408{
8fa728a2
JG		 5409 unsigned long flags;
5410 int rc;
6cdb0817 5411 struct ipr_ioa_cfg *ioa_cfg;
1da177e4
LT		 5412
5413 ENTER;
1da177e4 5414
6cdb0817
BK		 5415 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5416
8fa728a2
JG		 5417 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5418 rc = ipr_cancel_op(scsi_cmd);
5419 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4 5420
6cdb0817
BK		 5421 if (rc == SUCCESS)
5422 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
1da177e4 5423 LEAVE;
8fa728a2 5424 return rc;
1da177e4
LT		 5425}
5426
5427/**
5428 * ipr_handle_other_interrupt - Handle "other" interrupts
5429 * @ioa_cfg: ioa config struct
634651fa 5430 * @int_reg: interrupt register
1da177e4
LT		 5431 *
5432 * Return value:
5433 * IRQ_NONE / IRQ_HANDLED
5434 **/
634651fa 5435static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5436 u32 int_reg)
1da177e4
LT		 5437{
5438 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5439 u32 int_mask_reg;
56d6aa33 5440
7dacb64f
WB		 5441 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5442 int_reg &= ~int_mask_reg;
5443
5444 /* If an interrupt on the adapter did not occur, ignore it.
5445 * Or in the case of SIS 64, check for a stage change interrupt.
5446 */
5447 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5448 if (ioa_cfg->sis64) {
5449 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5450 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5451 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5452
5453 /* clear stage change */
5454 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5455 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5456 list_del(&ioa_cfg->reset_cmd->queue);
5457 del_timer(&ioa_cfg->reset_cmd->timer);
5458 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5459 return IRQ_HANDLED;
5460 }
5461 }
5462
5463 return IRQ_NONE;
5464 }
1da177e4
LT		 5465
5466 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5467 /* Mask the interrupt */
5468 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 5469 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5470
5471 list_del(&ioa_cfg->reset_cmd->queue);
5472 del_timer(&ioa_cfg->reset_cmd->timer);
5473 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5474 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5475 if (ioa_cfg->clear_isr) {
5476 if (ipr_debug && printk_ratelimit())
5477 dev_err(&ioa_cfg->pdev->dev,
5478 "Spurious interrupt detected. 0x%08X\n", int_reg);
5479 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5480 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5481 return IRQ_NONE;
5482 }
1da177e4
LT		 5483 } else {
5484 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5485 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5486 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5487 dev_err(&ioa_cfg->pdev->dev,
5488 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5489 else
5490 dev_err(&ioa_cfg->pdev->dev,
5491 "Permanent IOA failure. 0x%08X\n", int_reg);
5492
5493 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5494 ioa_cfg->sdt_state = GET_DUMP;
5495
5496 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5497 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5498 }
56d6aa33 5499
1da177e4
LT		 5500 return rc;
5501}
5502
3feeb89d
WB		 5503/**
5504 * ipr_isr_eh - Interrupt service routine error handler
5505 * @ioa_cfg: ioa config struct
5506 * @msg: message to log
5507 *
5508 * Return value:
5509 * none
5510 **/
05a6538a 5511static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5512{
5513 ioa_cfg->errors_logged++;
05a6538a 5514 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5515
5516 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5517 ioa_cfg->sdt_state = GET_DUMP;
5518
5519 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5520}
5521
b53d124a 5522static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5523 struct list_head *doneq)
5524{
5525 u32 ioasc;
5526 u16 cmd_index;
5527 struct ipr_cmnd *ipr_cmd;
5528 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5529 int num_hrrq = 0;
5530
5531 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5532 if (!hrr_queue->allow_interrupts)
05a6538a 5533 return 0;
5534
5535 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5536 hrr_queue->toggle_bit) {
5537
5538 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5539 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5540 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5541
5542 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5543 cmd_index < hrr_queue->min_cmd_id)) {
5544 ipr_isr_eh(ioa_cfg,
5545 "Invalid response handle from IOA: ",
5546 cmd_index);
5547 break;
5548 }
5549
5550 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5551 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5552
5553 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5554
5555 list_move_tail(&ipr_cmd->queue, doneq);
5556
5557 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5558 hrr_queue->hrrq_curr++;
5559 } else {
5560 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5561 hrr_queue->toggle_bit ^= 1u;
5562 }
5563 num_hrrq++;
b53d124a 5564 if (budget > 0 && num_hrrq >= budget)
5565 break;
05a6538a 5566 }
b53d124a 5567
05a6538a 5568 return num_hrrq;
5569}
b53d124a 5570
5571static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5572{
5573 struct ipr_ioa_cfg *ioa_cfg;
5574 struct ipr_hrr_queue *hrrq;
5575 struct ipr_cmnd *ipr_cmd, *temp;
5576 unsigned long hrrq_flags;
5577 int completed_ops;
5578 LIST_HEAD(doneq);
5579
5580 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5581 ioa_cfg = hrrq->ioa_cfg;
5582
5583 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5584 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5585
5586 if (completed_ops < budget)
5587 blk_iopoll_complete(iop);
5588 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5589
5590 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5591 list_del(&ipr_cmd->queue);
5592 del_timer(&ipr_cmd->timer);
5593 ipr_cmd->fast_done(ipr_cmd);
5594 }
5595
5596 return completed_ops;
5597}
5598
1da177e4
LT		 5599/**
5600 * ipr_isr - Interrupt service routine
5601 * @irq: irq number
5602 * @devp: pointer to ioa config struct
1da177e4
LT		 5603 *
5604 * Return value:
5605 * IRQ_NONE / IRQ_HANDLED
5606 **/
7d12e780 5607static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5608{
05a6538a 5609 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5610 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5611 unsigned long hrrq_flags = 0;
7dacb64f 5612 u32 int_reg = 0;
3feeb89d 5613 int num_hrrq = 0;
7dacb64f 5614 int irq_none = 0;
172cd6e1 5615 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5616 irqreturn_t rc = IRQ_NONE;
172cd6e1 5617 LIST_HEAD(doneq);
1da177e4 5618
56d6aa33 5619 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5620 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5621 if (!hrrq->allow_interrupts) {
5622 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5623 return IRQ_NONE;
5624 }
5625
1da177e4 5626 while (1) {
b53d124a 5627 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5628 rc = IRQ_HANDLED;
1da177e4 5629
b53d124a 5630 if (!ioa_cfg->clear_isr)
5631 break;
7dd21308 5632
1da177e4 5633 /* Clear the PCI interrupt */
a5442ba4 5634 num_hrrq = 0;
3feeb89d 5635 do {
b53d124a 5636 writel(IPR_PCII_HRRQ_UPDATED,
5637 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5638 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5639 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5640 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5641
7dacb64f
WB		 5642 } else if (rc == IRQ_NONE && irq_none == 0) {
5643 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5644 irq_none++;
a5442ba4
WB		 5645 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5646 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5647 ipr_isr_eh(ioa_cfg,
5648 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5649 rc = IRQ_HANDLED;
b53d124a 5650 break;
1da177e4
LT		 5651 } else
5652 break;
5653 }
5654
5655 if (unlikely(rc == IRQ_NONE))
634651fa 5656 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5657
56d6aa33 5658 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5659 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5660 list_del(&ipr_cmd->queue);
5661 del_timer(&ipr_cmd->timer);
5662 ipr_cmd->fast_done(ipr_cmd);
5663 }
05a6538a 5664 return rc;
5665}
5666
5667/**
5668 * ipr_isr_mhrrq - Interrupt service routine
5669 * @irq: irq number
5670 * @devp: pointer to ioa config struct
5671 *
5672 * Return value:
5673 * IRQ_NONE / IRQ_HANDLED
5674 **/
5675static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5676{
5677 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5678 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5679 unsigned long hrrq_flags = 0;
05a6538a 5680 struct ipr_cmnd *ipr_cmd, *temp;
5681 irqreturn_t rc = IRQ_NONE;
5682 LIST_HEAD(doneq);
172cd6e1 5683
56d6aa33 5684 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5685
5686 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5687 if (!hrrq->allow_interrupts) {
5688 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5689 return IRQ_NONE;
5690 }
5691
89f8b33c 5692 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5693 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5694 hrrq->toggle_bit) {
5695 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5696 blk_iopoll_sched(&hrrq->iopoll);
5697 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5698 return IRQ_HANDLED;
5699 }
5700 } else {
5701 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5702 hrrq->toggle_bit)
05a6538a 5703
b53d124a 5704 if (ipr_process_hrrq(hrrq, -1, &doneq))
5705 rc = IRQ_HANDLED;
5706 }
05a6538a 5707
56d6aa33 5708 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5709
5710 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5711 list_del(&ipr_cmd->queue);
5712 del_timer(&ipr_cmd->timer);
5713 ipr_cmd->fast_done(ipr_cmd);
5714 }
1da177e4
LT		 5715 return rc;
5716}
5717
a32c055f
WB		 5718/**
5719 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5720 * @ioa_cfg: ioa config struct
5721 * @ipr_cmd: ipr command struct
5722 *
5723 * Return value:
5724 * 0 on success / -1 on failure
5725 **/
5726static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5727 struct ipr_cmnd *ipr_cmd)
5728{
5729 int i, nseg;
5730 struct scatterlist *sg;
5731 u32 length;
5732 u32 ioadl_flags = 0;
5733 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5734 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5735 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5736
5737 length = scsi_bufflen(scsi_cmd);
5738 if (!length)
5739 return 0;
5740
5741 nseg = scsi_dma_map(scsi_cmd);
5742 if (nseg < 0) {
51f52a47 5743 if (printk_ratelimit())
d73341bf 5744 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5745 return -1;
5746 }
5747
5748 ipr_cmd->dma_use_sg = nseg;
5749
438b0331 5750 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5751 ioarcb->ioadl_len =
5752 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5753
a32c055f
WB		 5754 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5755 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5756 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5757 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5758 ioadl_flags = IPR_IOADL_FLAGS_READ;
5759
5760 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5761 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5762 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5763 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5764 }
5765
5766 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5767 return 0;
5768}
5769
1da177e4
LT		 5770/**
5771 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5772 * @ioa_cfg: ioa config struct
5773 * @ipr_cmd: ipr command struct
5774 *
5775 * Return value:
5776 * 0 on success / -1 on failure
5777 **/
5778static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5779 struct ipr_cmnd *ipr_cmd)
5780{
63015bc9
FT		 5781 int i, nseg;
5782 struct scatterlist *sg;
1da177e4
LT		 5783 u32 length;
5784 u32 ioadl_flags = 0;
5785 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5786 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5787 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5788
63015bc9
FT		 5789 length = scsi_bufflen(scsi_cmd);
5790 if (!length)
1da177e4
LT		 5791 return 0;
5792
63015bc9
FT		 5793 nseg = scsi_dma_map(scsi_cmd);
5794 if (nseg < 0) {
d73341bf 5795 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5796 return -1;
5797 }
51b1c7e1 5798
63015bc9
FT		 5799 ipr_cmd->dma_use_sg = nseg;
5800
5801 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5802 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5803 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5804 ioarcb->data_transfer_length = cpu_to_be32(length);
5805 ioarcb->ioadl_len =
63015bc9
FT		 5806 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5807 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5808 ioadl_flags = IPR_IOADL_FLAGS_READ;
5809 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5810 ioarcb->read_ioadl_len =
5811 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5812 }
1da177e4 5813
a32c055f
WB		 5814 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5815 ioadl = ioarcb->u.add_data.u.ioadl;
5816 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5817 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5818 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5819 }
1da177e4 5820
63015bc9
FT		 5821 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5822 ioadl[i].flags_and_data_len =
5823 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5824 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5825 }
5826
63015bc9
FT		 5827 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5828 return 0;
1da177e4
LT		 5829}
5830
1da177e4
LT		 5831/**
5832 * ipr_erp_done - Process completion of ERP for a device
5833 * @ipr_cmd: ipr command struct
5834 *
5835 * This function copies the sense buffer into the scsi_cmd
5836 * struct and pushes the scsi_done function.
5837 *
5838 * Return value:
5839 * nothing
5840 **/
5841static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5842{
5843 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5844 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5845 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5846
5847 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5848 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5849 scmd_printk(KERN_ERR, scsi_cmd,
5850 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5851 } else {
5852 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5853 SCSI_SENSE_BUFFERSIZE);
5854 }
5855
5856 if (res) {
ee0a90fa 5857 if (!ipr_is_naca_model(res))
5858 res->needs_sync_complete = 1;
1da177e4
LT		 5859 res->in_erp = 0;
5860 }
63015bc9 5861 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5862 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5863 scsi_cmd->scsi_done(scsi_cmd);
5864}
5865
5866/**
5867 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5868 * @ipr_cmd: ipr command struct
5869 *
5870 * Return value:
5871 * none
5872 **/
5873static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5874{
51b1c7e1 5875 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5876 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5877 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5878
5879 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5880 ioarcb->data_transfer_length = 0;
1da177e4 5881 ioarcb->read_data_transfer_length = 0;
a32c055f 5882 ioarcb->ioadl_len = 0;
1da177e4 5883 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5884 ioasa->hdr.ioasc = 0;
5885 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5886
5887 if (ipr_cmd->ioa_cfg->sis64)
5888 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5889 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5890 else {
5891 ioarcb->write_ioadl_addr =
5892 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5893 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5894 }
1da177e4
LT		 5895}
5896
5897/**
5898 * ipr_erp_request_sense - Send request sense to a device
5899 * @ipr_cmd: ipr command struct
5900 *
5901 * This function sends a request sense to a device as a result
5902 * of a check condition.
5903 *
5904 * Return value:
5905 * nothing
5906 **/
5907static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5908{
5909 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5910 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5911
5912 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5913 ipr_erp_done(ipr_cmd);
5914 return;
5915 }
5916
5917 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5918
5919 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5920 cmd_pkt->cdb[0] = REQUEST_SENSE;
5921 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5922 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5923 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5924 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5925
a32c055f
WB		 5926 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5927 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5928
5929 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5930 IPR_REQUEST_SENSE_TIMEOUT * 2);
5931}
5932
5933/**
5934 * ipr_erp_cancel_all - Send cancel all to a device
5935 * @ipr_cmd: ipr command struct
5936 *
5937 * This function sends a cancel all to a device to clear the
5938 * queue. If we are running TCQ on the device, QERR is set to 1,
5939 * which means all outstanding ops have been dropped on the floor.
5940 * Cancel all will return them to us.
5941 *
5942 * Return value:
5943 * nothing
5944 **/
5945static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5946{
5947 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5948 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5949 struct ipr_cmd_pkt *cmd_pkt;
5950
5951 res->in_erp = 1;
5952
5953 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5954
17ea0126 5955 if (!scsi_cmd->device->simple_tags) {
1da177e4
LT		 5956 ipr_erp_request_sense(ipr_cmd);
5957 return;
5958 }
5959
5960 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5961 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5962 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5963
5964 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5965 IPR_CANCEL_ALL_TIMEOUT);
5966}
5967
5968/**
5969 * ipr_dump_ioasa - Dump contents of IOASA
5970 * @ioa_cfg: ioa config struct
5971 * @ipr_cmd: ipr command struct
fe964d0a 5972 * @res: resource entry struct
1da177e4
LT		 5973 *
5974 * This function is invoked by the interrupt handler when ops
5975 * fail. It will log the IOASA if appropriate. Only called
5976 * for GPDD ops.
5977 *
5978 * Return value:
5979 * none
5980 **/
5981static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5982 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5983{
5984 int i;
5985 u16 data_len;
b0692dd4 5986 u32 ioasc, fd_ioasc;
96d21f00 5987 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5988 __be32 *ioasa_data = (__be32 *)ioasa;
5989 int error_index;
5990
96d21f00
WB		 5991 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5992 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5993
5994 if (0 == ioasc)
5995 return;
5996
5997 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5998 return;
5999
b0692dd4
BK		 6000 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6001 error_index = ipr_get_error(fd_ioasc);
6002 else
6003 error_index = ipr_get_error(ioasc);
1da177e4
LT		 6004
6005 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6006 /* Don't log an error if the IOA already logged one */
96d21f00 6007 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 6008 return;
6009
cc9bd5d4
BK		 6010 if (!ipr_is_gscsi(res))
6011 return;
6012
1da177e4
LT		 6013 if (ipr_error_table[error_index].log_ioasa == 0)
6014 return;
6015 }
6016
fe964d0a 6017 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 6018
96d21f00
WB		 6019 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6020 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6021 data_len = sizeof(struct ipr_ioasa64);
6022 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 6023 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 6024
6025 ipr_err("IOASA Dump:\n");
6026
6027 for (i = 0; i < data_len / 4; i += 4) {
6028 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6029 be32_to_cpu(ioasa_data[i]),
6030 be32_to_cpu(ioasa_data[i+1]),
6031 be32_to_cpu(ioasa_data[i+2]),
6032 be32_to_cpu(ioasa_data[i+3]));
6033 }
6034}
6035
6036/**
6037 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6038 * @ioasa: IOASA
6039 * @sense_buf: sense data buffer
6040 *
6041 * Return value:
6042 * none
6043 **/
6044static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6045{
6046 u32 failing_lba;
6047 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6048 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 6049 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6050 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 6051
6052 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6053
6054 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6055 return;
6056
6057 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6058
6059 if (ipr_is_vset_device(res) &&
6060 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6061 ioasa->u.vset.failing_lba_hi != 0) {
6062 sense_buf[0] = 0x72;
6063 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6064 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6065 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6066
6067 sense_buf[7] = 12;
6068 sense_buf[8] = 0;
6069 sense_buf[9] = 0x0A;
6070 sense_buf[10] = 0x80;
6071
6072 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6073
6074 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6075 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6076 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6077 sense_buf[15] = failing_lba & 0x000000ff;
6078
6079 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6080
6081 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6082 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6083 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6084 sense_buf[19] = failing_lba & 0x000000ff;
6085 } else {
6086 sense_buf[0] = 0x70;
6087 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6088 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6089 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6090
6091 /* Illegal request */
6092 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 6093 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 6094 sense_buf[7] = 10; /* additional length */
6095
6096 /* IOARCB was in error */
6097 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6098 sense_buf[15] = 0xC0;
6099 else /* Parameter data was invalid */
6100 sense_buf[15] = 0x80;
6101
6102 sense_buf[16] =
6103 ((IPR_FIELD_POINTER_MASK &
96d21f00 6104 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 6105 sense_buf[17] =
6106 (IPR_FIELD_POINTER_MASK &
96d21f00 6107 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 6108 } else {
6109 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6110 if (ipr_is_vset_device(res))
6111 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6112 else
6113 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6114
6115 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6116 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6117 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6118 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6119 sense_buf[6] = failing_lba & 0x000000ff;
6120 }
6121
6122 sense_buf[7] = 6; /* additional length */
6123 }
6124 }
6125}
6126
ee0a90fa 6127/**
6128 * ipr_get_autosense - Copy autosense data to sense buffer
6129 * @ipr_cmd: ipr command struct
6130 *
6131 * This function copies the autosense buffer to the buffer
6132 * in the scsi_cmd, if there is autosense available.
6133 *
6134 * Return value:
6135 * 1 if autosense was available / 0 if not
6136 **/
6137static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6138{
96d21f00
WB		 6139 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6140 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 6141
96d21f00 6142 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa 6143 return 0;
6144
96d21f00
WB		 6145 if (ipr_cmd->ioa_cfg->sis64)
6146 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6147 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6148 SCSI_SENSE_BUFFERSIZE));
6149 else
6150 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6151 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6152 SCSI_SENSE_BUFFERSIZE));
ee0a90fa 6153 return 1;
6154}
6155
1da177e4
LT		 6156/**
6157 * ipr_erp_start - Process an error response for a SCSI op
6158 * @ioa_cfg: ioa config struct
6159 * @ipr_cmd: ipr command struct
6160 *
6161 * This function determines whether or not to initiate ERP
6162 * on the affected device.
6163 *
6164 * Return value:
6165 * nothing
6166 **/
6167static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6168 struct ipr_cmnd *ipr_cmd)
6169{
6170 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6171 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6172 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6173 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6174
6175 if (!res) {
6176 ipr_scsi_eh_done(ipr_cmd);
6177 return;
6178 }
6179
8a048994 6180 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6181 ipr_gen_sense(ipr_cmd);
6182
cc9bd5d4
BK		 6183 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6184
8a048994 6185 switch (masked_ioasc) {
1da177e4 6186 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa 6187 if (ipr_is_naca_model(res))
6188 scsi_cmd->result |= (DID_ABORT << 16);
6189 else
6190 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6191 break;
6192 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6193 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6194 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6195 break;
6196 case IPR_IOASC_HW_SEL_TIMEOUT:
6197 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa 6198 if (!ipr_is_naca_model(res))
6199 res->needs_sync_complete = 1;
1da177e4
LT		 6200 break;
6201 case IPR_IOASC_SYNC_REQUIRED:
6202 if (!res->in_erp)
6203 res->needs_sync_complete = 1;
6204 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6205 break;
6206 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6207 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6208 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6209 break;
6210 case IPR_IOASC_BUS_WAS_RESET:
6211 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6212 /*
6213 * Report the bus reset and ask for a retry. The device
6214 * will give CC/UA the next command.
6215 */
6216 if (!res->resetting_device)
6217 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6218 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6219 if (!ipr_is_naca_model(res))
6220 res->needs_sync_complete = 1;
1da177e4
LT		 6221 break;
6222 case IPR_IOASC_HW_DEV_BUS_STATUS:
6223 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6224 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa 6225 if (!ipr_get_autosense(ipr_cmd)) {
6226 if (!ipr_is_naca_model(res)) {
6227 ipr_erp_cancel_all(ipr_cmd);
6228 return;
6229 }
6230 }
1da177e4 6231 }
ee0a90fa 6232 if (!ipr_is_naca_model(res))
6233 res->needs_sync_complete = 1;
1da177e4
LT		 6234 break;
6235 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6236 break;
f8ee25d7
WX		 6237 case IPR_IOASC_IR_NON_OPTIMIZED:
6238 if (res->raw_mode) {
6239 res->raw_mode = 0;
6240 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6241 } else
6242 scsi_cmd->result |= (DID_ERROR << 16);
6243 break;
1da177e4 6244 default:
5b7304fb
BK		 6245 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6246 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6247 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6248 res->needs_sync_complete = 1;
6249 break;
6250 }
6251
63015bc9 6252 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6253 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6254 scsi_cmd->scsi_done(scsi_cmd);
6255}
6256
6257/**
6258 * ipr_scsi_done - mid-layer done function
6259 * @ipr_cmd: ipr command struct
6260 *
6261 * This function is invoked by the interrupt handler for
6262 * ops generated by the SCSI mid-layer
6263 *
6264 * Return value:
6265 * none
6266 **/
6267static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6268{
6269 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6270 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6271 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
36b8e180 6272 unsigned long lock_flags;
1da177e4 6273
96d21f00 6274 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6275
6276 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6277 scsi_dma_unmap(scsi_cmd);
6278
36b8e180 6279 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
05a6538a 6280 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6281 scsi_cmd->scsi_done(scsi_cmd);
36b8e180 6282 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
172cd6e1 6283 } else {
36b8e180
BK		 6284 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6285 spin_lock(&ipr_cmd->hrrq->_lock);
1da177e4 6286 ipr_erp_start(ioa_cfg, ipr_cmd);
36b8e180
BK		 6287 spin_unlock(&ipr_cmd->hrrq->_lock);
6288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
172cd6e1 6289 }
1da177e4
LT		 6290}
6291
1da177e4
LT		 6292/**
6293 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6294 * @shost: scsi host struct
1da177e4 6295 * @scsi_cmd: scsi command struct
1da177e4
LT		 6296 *
6297 * This function queues a request generated by the mid-layer.
6298 *
6299 * Return value:
6300 * 0 on success
6301 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6302 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6303 **/
00bfef2c
BK		 6304static int ipr_queuecommand(struct Scsi_Host *shost,
6305 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6306{
6307 struct ipr_ioa_cfg *ioa_cfg;
6308 struct ipr_resource_entry *res;
6309 struct ipr_ioarcb *ioarcb;
6310 struct ipr_cmnd *ipr_cmd;
56d6aa33 6311 unsigned long hrrq_flags, lock_flags;
d12f1576 6312 int rc;
05a6538a 6313 struct ipr_hrr_queue *hrrq;
6314 int hrrq_id;
1da177e4 6315
00bfef2c
BK		 6316 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6317
1da177e4 6318 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6319 res = scsi_cmd->device->hostdata;
56d6aa33 6320
6321 if (ipr_is_gata(res) && res->sata_port) {
6322 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6323 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6324 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6325 return rc;
6326 }
6327
05a6538a 6328 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6329 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6330
56d6aa33 6331 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6332 /*
6333 * We are currently blocking all devices due to a host reset
6334 * We have told the host to stop giving us new requests, but
6335 * ERP ops don't count. FIXME
6336 */
bfae7820 6337 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6338 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6339 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6340 }
1da177e4
LT		 6341
6342 /*
6343 * FIXME - Create scsi_set_host_offline interface
6344 * and the ioa_is_dead check can be removed
6345 */
bfae7820 6346 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6347 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6348 goto err_nodev;
1da177e4
LT		 6349 }
6350
05a6538a 6351 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6352 if (ipr_cmd == NULL) {
56d6aa33 6353 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6354 return SCSI_MLQUEUE_HOST_BUSY;
6355 }
56d6aa33 6356 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6357
172cd6e1 6358 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6359 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6360
6361 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6362 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6363 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4 6364
4f92d01a 6365 if (ipr_is_gscsi(res)) {
1da177e4
LT		 6366 if (scsi_cmd->underflow == 0)
6367 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6368
4f92d01a 6369 if (res->reset_occurred) {
0b1f8d44 6370 res->reset_occurred = 0;
ab6c10b1 6371 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6372 }
4f92d01a
GKB		 6373 }
6374
6375 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6376 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6377
1da177e4 6378 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6379 if (scsi_cmd->flags & SCMD_TAGGED)
6380 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6381 else
6382 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6383 }
6384
6385 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6386 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6387 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6388 }
3cb4fc1f 6389 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
f8ee25d7 6390 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
1da177e4 6391
3cb4fc1f
GKB		 6392 if (scsi_cmd->underflow == 0)
6393 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6394 }
6395
d12f1576
DC		 6396 if (ioa_cfg->sis64)
6397 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6398 else
6399 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6400
56d6aa33 6401 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6402 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6403 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6404 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6405 if (!rc)
6406 scsi_dma_unmap(scsi_cmd);
a5fb407e 6407 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6408 }
6409
56d6aa33 6410 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6411 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6412 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6413 scsi_dma_unmap(scsi_cmd);
6414 goto err_nodev;
6415 }
6416
6417 ioarcb->res_handle = res->res_handle;
6418 if (res->needs_sync_complete) {
6419 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6420 res->needs_sync_complete = 0;
6421 }
05a6538a 6422 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6423 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6424 ipr_send_command(ipr_cmd);
56d6aa33 6425 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6426 return 0;
1da177e4 6427
00bfef2c 6428err_nodev:
56d6aa33 6429 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6430 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6431 scsi_cmd->result = (DID_NO_CONNECT << 16);
6432 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6433 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6434 return 0;
6435}
f281233d 6436
35a39691
BK		 6437/**
6438 * ipr_ioctl - IOCTL handler
6439 * @sdev: scsi device struct
6440 * @cmd: IOCTL cmd
6441 * @arg: IOCTL arg
6442 *
6443 * Return value:
6444 * 0 on success / other on failure
6445 **/
bd705f2d 6446static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6447{
6448 struct ipr_resource_entry *res;
6449
6450 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6451 if (res && ipr_is_gata(res)) {
6452 if (cmd == HDIO_GET_IDENTITY)
6453 return -ENOTTY;
94be9a58 6454 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6455 }
35a39691
BK		 6456
6457 return -EINVAL;
6458}
6459
1da177e4
LT		 6460/**
6461 * ipr_info - Get information about the card/driver
6462 * @scsi_host: scsi host struct
6463 *
6464 * Return value:
6465 * pointer to buffer with description string
6466 **/
203fa3fe 6467static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6468{
6469 static char buffer[512];
6470 struct ipr_ioa_cfg *ioa_cfg;
6471 unsigned long lock_flags = 0;
6472
6473 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6474
6475 spin_lock_irqsave(host->host_lock, lock_flags);
6476 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6477 spin_unlock_irqrestore(host->host_lock, lock_flags);
6478
6479 return buffer;
6480}
6481
6482static struct scsi_host_template driver_template = {
6483 .module = THIS_MODULE,
6484 .name = "IPR",
6485 .info = ipr_ioa_info,
35a39691 6486 .ioctl = ipr_ioctl,
1da177e4
LT		 6487 .queuecommand = ipr_queuecommand,
6488 .eh_abort_handler = ipr_eh_abort,
6489 .eh_device_reset_handler = ipr_eh_dev_reset,
6490 .eh_host_reset_handler = ipr_eh_host_reset,
6491 .slave_alloc = ipr_slave_alloc,
6492 .slave_configure = ipr_slave_configure,
6493 .slave_destroy = ipr_slave_destroy,
f688f96d 6494 .scan_finished = ipr_scan_finished,
35a39691
BK		 6495 .target_alloc = ipr_target_alloc,
6496 .target_destroy = ipr_target_destroy,
1da177e4 6497 .change_queue_depth = ipr_change_queue_depth,
1da177e4
LT		 6498 .bios_param = ipr_biosparam,
6499 .can_queue = IPR_MAX_COMMANDS,
6500 .this_id = -1,
6501 .sg_tablesize = IPR_MAX_SGLIST,
6502 .max_sectors = IPR_IOA_MAX_SECTORS,
6503 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6504 .use_clustering = ENABLE_CLUSTERING,
6505 .shost_attrs = ipr_ioa_attrs,
6506 .sdev_attrs = ipr_dev_attrs,
54b2b50c 6507 .proc_name = IPR_NAME,
1da177e4
LT		 6508};
6509
35a39691
BK		 6510/**
6511 * ipr_ata_phy_reset - libata phy_reset handler
6512 * @ap: ata port to reset
6513 *
6514 **/
6515static void ipr_ata_phy_reset(struct ata_port *ap)
6516{
6517 unsigned long flags;
6518 struct ipr_sata_port *sata_port = ap->private_data;
6519 struct ipr_resource_entry *res = sata_port->res;
6520 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6521 int rc;
6522
6523 ENTER;
6524 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6525 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6526 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6527 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6528 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6529 }
6530
56d6aa33 6531 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6532 goto out_unlock;
6533
6534 rc = ipr_device_reset(ioa_cfg, res);
6535
6536 if (rc) {
3e4ec344 6537 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6538 goto out_unlock;
6539 }
6540
3e7ebdfa
WB		 6541 ap->link.device[0].class = res->ata_class;
6542 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6543 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6544
6545out_unlock:
6546 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6547 LEAVE;
6548}
6549
6550/**
6551 * ipr_ata_post_internal - Cleanup after an internal command
6552 * @qc: ATA queued command
6553 *
6554 * Return value:
6555 * none
6556 **/
6557static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6558{
6559 struct ipr_sata_port *sata_port = qc->ap->private_data;
6560 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6561 struct ipr_cmnd *ipr_cmd;
05a6538a 6562 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6563 unsigned long flags;
6564
6565 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6566 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6568 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6569 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6570 }
6571
05a6538a 6572 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6573 spin_lock(&hrrq->_lock);
05a6538a 6574 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6575 if (ipr_cmd->qc == qc) {
6576 ipr_device_reset(ioa_cfg, sata_port->res);
6577 break;
6578 }
35a39691 6579 }
56d6aa33 6580 spin_unlock(&hrrq->_lock);
35a39691
BK		 6581 }
6582 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6583}
6584
35a39691
BK		 6585/**
6586 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6587 * @regs: destination
6588 * @tf: source ATA taskfile
6589 *
6590 * Return value:
6591 * none
6592 **/
6593static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6594 struct ata_taskfile *tf)
6595{
6596 regs->feature = tf->feature;
6597 regs->nsect = tf->nsect;
6598 regs->lbal = tf->lbal;
6599 regs->lbam = tf->lbam;
6600 regs->lbah = tf->lbah;
6601 regs->device = tf->device;
6602 regs->command = tf->command;
6603 regs->hob_feature = tf->hob_feature;
6604 regs->hob_nsect = tf->hob_nsect;
6605 regs->hob_lbal = tf->hob_lbal;
6606 regs->hob_lbam = tf->hob_lbam;
6607 regs->hob_lbah = tf->hob_lbah;
6608 regs->ctl = tf->ctl;
6609}
6610
6611/**
6612 * ipr_sata_done - done function for SATA commands
6613 * @ipr_cmd: ipr command struct
6614 *
6615 * This function is invoked by the interrupt handler for
6616 * ops generated by the SCSI mid-layer to SATA devices
6617 *
6618 * Return value:
6619 * none
6620 **/
6621static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6622{
6623 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6624 struct ata_queued_cmd *qc = ipr_cmd->qc;
6625 struct ipr_sata_port *sata_port = qc->ap->private_data;
6626 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6627 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6628
56d6aa33 6629 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6630 if (ipr_cmd->ioa_cfg->sis64)
6631 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6632 sizeof(struct ipr_ioasa_gata));
6633 else
6634 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6635 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6636 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6637
96d21f00 6638 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6639 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6640
6641 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6642 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6643 else
96d21f00 6644 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6645 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6646 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6647 ata_qc_complete(qc);
6648}
6649
a32c055f
WB		 6650/**
6651 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6652 * @ipr_cmd: ipr command struct
6653 * @qc: ATA queued command
6654 *
6655 **/
6656static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6657 struct ata_queued_cmd *qc)
6658{
6659 u32 ioadl_flags = 0;
6660 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6661 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6662 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6663 int len = qc->nbytes;
6664 struct scatterlist *sg;
6665 unsigned int si;
6666 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6667
6668 if (len == 0)
6669 return;
6670
6671 if (qc->dma_dir == DMA_TO_DEVICE) {
6672 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6673 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6674 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6675 ioadl_flags = IPR_IOADL_FLAGS_READ;
6676
6677 ioarcb->data_transfer_length = cpu_to_be32(len);
6678 ioarcb->ioadl_len =
6679 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6680 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6681 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6682
6683 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6684 ioadl64->flags = cpu_to_be32(ioadl_flags);
6685 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6686 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6687
6688 last_ioadl64 = ioadl64;
6689 ioadl64++;
6690 }
6691
6692 if (likely(last_ioadl64))
6693 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6694}
6695
35a39691
BK		 6696/**
6697 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6698 * @ipr_cmd: ipr command struct
6699 * @qc: ATA queued command
6700 *
6701 **/
6702static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6703 struct ata_queued_cmd *qc)
6704{
6705 u32 ioadl_flags = 0;
6706 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6707 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6708 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6709 int len = qc->nbytes;
35a39691 6710 struct scatterlist *sg;
ff2aeb1e 6711 unsigned int si;
35a39691
BK		 6712
6713 if (len == 0)
6714 return;
6715
6716 if (qc->dma_dir == DMA_TO_DEVICE) {
6717 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6718 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6719 ioarcb->data_transfer_length = cpu_to_be32(len);
6720 ioarcb->ioadl_len =
35a39691
BK		 6721 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6722 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6723 ioadl_flags = IPR_IOADL_FLAGS_READ;
6724 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6725 ioarcb->read_ioadl_len =
6726 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6727 }
6728
ff2aeb1e 6729 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6730 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6731 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6732
6733 last_ioadl = ioadl;
6734 ioadl++;
35a39691 6735 }
3be6cbd7
JG		 6736
6737 if (likely(last_ioadl))
6738 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6739}
6740
56d6aa33 6741/**
6742 * ipr_qc_defer - Get a free ipr_cmd
6743 * @qc: queued command
6744 *
6745 * Return value:
6746 * 0 if success
6747 **/
6748static int ipr_qc_defer(struct ata_queued_cmd *qc)
6749{
6750 struct ata_port *ap = qc->ap;
6751 struct ipr_sata_port *sata_port = ap->private_data;
6752 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6753 struct ipr_cmnd *ipr_cmd;
6754 struct ipr_hrr_queue *hrrq;
6755 int hrrq_id;
6756
6757 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6758 hrrq = &ioa_cfg->hrrq[hrrq_id];
6759
6760 qc->lldd_task = NULL;
6761 spin_lock(&hrrq->_lock);
6762 if (unlikely(hrrq->ioa_is_dead)) {
6763 spin_unlock(&hrrq->_lock);
6764 return 0;
6765 }
6766
6767 if (unlikely(!hrrq->allow_cmds)) {
6768 spin_unlock(&hrrq->_lock);
6769 return ATA_DEFER_LINK;
6770 }
6771
6772 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6773 if (ipr_cmd == NULL) {
6774 spin_unlock(&hrrq->_lock);
6775 return ATA_DEFER_LINK;
6776 }
6777
6778 qc->lldd_task = ipr_cmd;
6779 spin_unlock(&hrrq->_lock);
6780 return 0;
6781}
6782
35a39691
BK		 6783/**
6784 * ipr_qc_issue - Issue a SATA qc to a device
6785 * @qc: queued command
6786 *
6787 * Return value:
6788 * 0 if success
6789 **/
6790static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6791{
6792 struct ata_port *ap = qc->ap;
6793 struct ipr_sata_port *sata_port = ap->private_data;
6794 struct ipr_resource_entry *res = sata_port->res;
6795 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6796 struct ipr_cmnd *ipr_cmd;
6797 struct ipr_ioarcb *ioarcb;
6798 struct ipr_ioarcb_ata_regs *regs;
6799
56d6aa33 6800 if (qc->lldd_task == NULL)
6801 ipr_qc_defer(qc);
6802
6803 ipr_cmd = qc->lldd_task;
6804 if (ipr_cmd == NULL)
0feeed82 6805 return AC_ERR_SYSTEM;
35a39691 6806
56d6aa33 6807 qc->lldd_task = NULL;
6808 spin_lock(&ipr_cmd->hrrq->_lock);
6809 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6810 ipr_cmd->hrrq->ioa_is_dead)) {
6811 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6812 spin_unlock(&ipr_cmd->hrrq->_lock);
6813 return AC_ERR_SYSTEM;
6814 }
6815
05a6538a 6816 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6817 ioarcb = &ipr_cmd->ioarcb;
35a39691 6818
a32c055f
WB		 6819 if (ioa_cfg->sis64) {
6820 regs = &ipr_cmd->i.ata_ioadl.regs;
6821 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6822 } else
6823 regs = &ioarcb->u.add_data.u.regs;
6824
6825 memset(regs, 0, sizeof(*regs));
6826 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6827
56d6aa33 6828 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6829 ipr_cmd->qc = qc;
6830 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6831 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6832 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6833 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6834 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6835 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6836
a32c055f
WB		 6837 if (ioa_cfg->sis64)
6838 ipr_build_ata_ioadl64(ipr_cmd, qc);
6839 else
6840 ipr_build_ata_ioadl(ipr_cmd, qc);
6841
35a39691
BK		 6842 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6843 ipr_copy_sata_tf(regs, &qc->tf);
6844 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6845 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6846
6847 switch (qc->tf.protocol) {
6848 case ATA_PROT_NODATA:
6849 case ATA_PROT_PIO:
6850 break;
6851
6852 case ATA_PROT_DMA:
6853 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6854 break;
6855
0dc36888
TH		 6856 case ATAPI_PROT_PIO:
6857 case ATAPI_PROT_NODATA:
35a39691
BK		 6858 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6859 break;
6860
0dc36888 6861 case ATAPI_PROT_DMA:
35a39691
BK		 6862 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6863 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6864 break;
6865
6866 default:
6867 WARN_ON(1);
56d6aa33 6868 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6869 return AC_ERR_INVALID;
35a39691
BK		 6870 }
6871
a32c055f 6872 ipr_send_command(ipr_cmd);
56d6aa33 6873 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6874
35a39691
BK		 6875 return 0;
6876}
6877
4c9bf4e7
TH		 6878/**
6879 * ipr_qc_fill_rtf - Read result TF
6880 * @qc: ATA queued command
6881 *
6882 * Return value:
6883 * true
6884 **/
6885static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6886{
6887 struct ipr_sata_port *sata_port = qc->ap->private_data;
6888 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6889 struct ata_taskfile *tf = &qc->result_tf;
6890
6891 tf->feature = g->error;
6892 tf->nsect = g->nsect;
6893 tf->lbal = g->lbal;
6894 tf->lbam = g->lbam;
6895 tf->lbah = g->lbah;
6896 tf->device = g->device;
6897 tf->command = g->status;
6898 tf->hob_nsect = g->hob_nsect;
6899 tf->hob_lbal = g->hob_lbal;
6900 tf->hob_lbam = g->hob_lbam;
6901 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6902
6903 return true;
6904}
6905
35a39691 6906static struct ata_port_operations ipr_sata_ops = {
35a39691 6907 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6908 .hardreset = ipr_sata_reset,
35a39691 6909 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6910 .qc_prep = ata_noop_qc_prep,
56d6aa33 6911 .qc_defer = ipr_qc_defer,
35a39691 6912 .qc_issue = ipr_qc_issue,
4c9bf4e7 6913 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6914 .port_start = ata_sas_port_start,
6915 .port_stop = ata_sas_port_stop
6916};
6917
6918static struct ata_port_info sata_port_info = {
5067c046
SL		 6919 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
6920 ATA_FLAG_SAS_HOST,
0f2e0330
SS		 6921 .pio_mask = ATA_PIO4_ONLY,
6922 .mwdma_mask = ATA_MWDMA2,
6923 .udma_mask = ATA_UDMA6,
35a39691
BK		 6924 .port_ops = &ipr_sata_ops
6925};
6926
1da177e4
LT		 6927#ifdef CONFIG_PPC_PSERIES
6928static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6929 PVR_NORTHSTAR,
6930 PVR_PULSAR,
6931 PVR_POWER4,
6932 PVR_ICESTAR,
6933 PVR_SSTAR,
6934 PVR_POWER4p,
6935 PVR_630,
6936 PVR_630p
1da177e4
LT		 6937};
6938
6939/**
6940 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6941 * @ioa_cfg: ioa cfg struct
6942 *
6943 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6944 * certain pSeries hardware. This function determines if the given
6945 * adapter is in one of these confgurations or not.
6946 *
6947 * Return value:
6948 * 1 if adapter is not supported / 0 if adapter is supported
6949 **/
6950static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6951{
1da177e4
LT		 6952 int i;
6953
44c10138 6954 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6955 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6956 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6957 return 1;
1da177e4
LT		 6958 }
6959 }
6960 return 0;
6961}
6962#else
6963#define ipr_invalid_adapter(ioa_cfg) 0
6964#endif
6965
6966/**
6967 * ipr_ioa_bringdown_done - IOA bring down completion.
6968 * @ipr_cmd: ipr command struct
6969 *
6970 * This function processes the completion of an adapter bring down.
6971 * It wakes any reset sleepers.
6972 *
6973 * Return value:
6974 * IPR_RC_JOB_RETURN
6975 **/
6976static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6977{
6978 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6979 int i;
1da177e4
LT		 6980
6981 ENTER;
bfae7820
BK		 6982 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6983 ipr_trace;
6984 spin_unlock_irq(ioa_cfg->host->host_lock);
6985 scsi_unblock_requests(ioa_cfg->host);
6986 spin_lock_irq(ioa_cfg->host->host_lock);
6987 }
6988
1da177e4
LT		 6989 ioa_cfg->in_reset_reload = 0;
6990 ioa_cfg->reset_retries = 0;
96b04db9 6991 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6992 spin_lock(&ioa_cfg->hrrq[i]._lock);
6993 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6994 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6995 }
6996 wmb();
6997
05a6538a 6998 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6999 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 7000 LEAVE;
7001
7002 return IPR_RC_JOB_RETURN;
7003}
7004
7005/**
7006 * ipr_ioa_reset_done - IOA reset completion.
7007 * @ipr_cmd: ipr command struct
7008 *
7009 * This function processes the completion of an adapter reset.
7010 * It schedules any necessary mid-layer add/removes and
7011 * wakes any reset sleepers.
7012 *
7013 * Return value:
7014 * IPR_RC_JOB_RETURN
7015 **/
7016static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7017{
7018 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7019 struct ipr_resource_entry *res;
7020 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 7021 int i = 0, j;
1da177e4
LT		 7022
7023 ENTER;
7024 ioa_cfg->in_reset_reload = 0;
56d6aa33 7025 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7026 spin_lock(&ioa_cfg->hrrq[j]._lock);
7027 ioa_cfg->hrrq[j].allow_cmds = 1;
7028 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7029 }
7030 wmb();
1da177e4 7031 ioa_cfg->reset_cmd = NULL;
3d1d0da6 7032 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 7033
7034 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
f688f96d 7035 if (res->add_to_ml || res->del_from_ml) {
1da177e4
LT		 7036 ipr_trace;
7037 break;
7038 }
7039 }
7040 schedule_work(&ioa_cfg->work_q);
7041
7042 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
7043 list_del(&hostrcb->queue);
7044 if (i++ < IPR_NUM_LOG_HCAMS)
7045 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
7046 else
7047 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
7048 }
7049
6bb04170 7050 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 7051 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7052
7053 ioa_cfg->reset_retries = 0;
05a6538a 7054 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 7055 wake_up_all(&ioa_cfg->reset_wait_q);
7056
30237853 7057 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 7058 scsi_unblock_requests(ioa_cfg->host);
30237853 7059 spin_lock(ioa_cfg->host->host_lock);
1da177e4 7060
56d6aa33 7061 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 7062 scsi_block_requests(ioa_cfg->host);
7063
f688f96d 7064 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 7065 LEAVE;
7066 return IPR_RC_JOB_RETURN;
7067}
7068
7069/**
7070 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7071 * @supported_dev: supported device struct
7072 * @vpids: vendor product id struct
7073 *
7074 * Return value:
7075 * none
7076 **/
7077static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7078 struct ipr_std_inq_vpids *vpids)
7079{
7080 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7081 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7082 supported_dev->num_records = 1;
7083 supported_dev->data_length =
7084 cpu_to_be16(sizeof(struct ipr_supported_device));
7085 supported_dev->reserved = 0;
7086}
7087
7088/**
7089 * ipr_set_supported_devs - Send Set Supported Devices for a device
7090 * @ipr_cmd: ipr command struct
7091 *
a32c055f 7092 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 7093 *
7094 * Return value:
7095 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7096 **/
7097static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7098{
7099 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7100 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 7101 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7102 struct ipr_resource_entry *res = ipr_cmd->u.res;
7103
7104 ipr_cmd->job_step = ipr_ioa_reset_done;
7105
7106 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 7107 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 7108 continue;
7109
7110 ipr_cmd->u.res = res;
3e7ebdfa 7111 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 7112
7113 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7114 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7115 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7116
7117 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 7118 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 7119 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7120 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7121
a32c055f
WB		 7122 ipr_init_ioadl(ipr_cmd,
7123 ioa_cfg->vpd_cbs_dma +
7124 offsetof(struct ipr_misc_cbs, supp_dev),
7125 sizeof(struct ipr_supported_device),
7126 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7127
7128 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7129 IPR_SET_SUP_DEVICE_TIMEOUT);
7130
3e7ebdfa
WB		 7131 if (!ioa_cfg->sis64)
7132 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 7133 LEAVE;
1da177e4
LT		 7134 return IPR_RC_JOB_RETURN;
7135 }
7136
05a6538a 7137 LEAVE;
1da177e4
LT		 7138 return IPR_RC_JOB_CONTINUE;
7139}
7140
7141/**
7142 * ipr_get_mode_page - Locate specified mode page
7143 * @mode_pages: mode page buffer
7144 * @page_code: page code to find
7145 * @len: minimum required length for mode page
7146 *
7147 * Return value:
7148 * pointer to mode page / NULL on failure
7149 **/
7150static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7151 u32 page_code, u32 len)
7152{
7153 struct ipr_mode_page_hdr *mode_hdr;
7154 u32 page_length;
7155 u32 length;
7156
7157 if (!mode_pages || (mode_pages->hdr.length == 0))
7158 return NULL;
7159
7160 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7161 mode_hdr = (struct ipr_mode_page_hdr *)
7162 (mode_pages->data + mode_pages->hdr.block_desc_len);
7163
7164 while (length) {
7165 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7166 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7167 return mode_hdr;
7168 break;
7169 } else {
7170 page_length = (sizeof(struct ipr_mode_page_hdr) +
7171 mode_hdr->page_length);
7172 length -= page_length;
7173 mode_hdr = (struct ipr_mode_page_hdr *)
7174 ((unsigned long)mode_hdr + page_length);
7175 }
7176 }
7177 return NULL;
7178}
7179
7180/**
7181 * ipr_check_term_power - Check for term power errors
7182 * @ioa_cfg: ioa config struct
7183 * @mode_pages: IOAFP mode pages buffer
7184 *
7185 * Check the IOAFP's mode page 28 for term power errors
7186 *
7187 * Return value:
7188 * nothing
7189 **/
7190static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7191 struct ipr_mode_pages *mode_pages)
7192{
7193 int i;
7194 int entry_length;
7195 struct ipr_dev_bus_entry *bus;
7196 struct ipr_mode_page28 *mode_page;
7197
7198 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7199 sizeof(struct ipr_mode_page28));
7200
7201 entry_length = mode_page->entry_length;
7202
7203 bus = mode_page->bus;
7204
7205 for (i = 0; i < mode_page->num_entries; i++) {
7206 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7207 dev_err(&ioa_cfg->pdev->dev,
7208 "Term power is absent on scsi bus %d\n",
7209 bus->res_addr.bus);
7210 }
7211
7212 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7213 }
7214}
7215
7216/**
7217 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7218 * @ioa_cfg: ioa config struct
7219 *
7220 * Looks through the config table checking for SES devices. If
7221 * the SES device is in the SES table indicating a maximum SCSI
7222 * bus speed, the speed is limited for the bus.
7223 *
7224 * Return value:
7225 * none
7226 **/
7227static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7228{
7229 u32 max_xfer_rate;
7230 int i;
7231
7232 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7233 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7234 ioa_cfg->bus_attr[i].bus_width);
7235
7236 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7237 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7238 }
7239}
7240
7241/**
7242 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7243 * @ioa_cfg: ioa config struct
7244 * @mode_pages: mode page 28 buffer
7245 *
7246 * Updates mode page 28 based on driver configuration
7247 *
7248 * Return value:
7249 * none
7250 **/
7251static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7252 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7253{
7254 int i, entry_length;
7255 struct ipr_dev_bus_entry *bus;
7256 struct ipr_bus_attributes *bus_attr;
7257 struct ipr_mode_page28 *mode_page;
7258
7259 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7260 sizeof(struct ipr_mode_page28));
7261
7262 entry_length = mode_page->entry_length;
7263
7264 /* Loop for each device bus entry */
7265 for (i = 0, bus = mode_page->bus;
7266 i < mode_page->num_entries;
7267 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7268 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7269 dev_err(&ioa_cfg->pdev->dev,
7270 "Invalid resource address reported: 0x%08X\n",
7271 IPR_GET_PHYS_LOC(bus->res_addr));
7272 continue;
7273 }
7274
7275 bus_attr = &ioa_cfg->bus_attr[i];
7276 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7277 bus->bus_width = bus_attr->bus_width;
7278 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7279 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7280 if (bus_attr->qas_enabled)
7281 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7282 else
7283 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7284 }
7285}
7286
7287/**
7288 * ipr_build_mode_select - Build a mode select command
7289 * @ipr_cmd: ipr command struct
7290 * @res_handle: resource handle to send command to
7291 * @parm: Byte 2 of Mode Sense command
7292 * @dma_addr: DMA buffer address
7293 * @xfer_len: data transfer length
7294 *
7295 * Return value:
7296 * none
7297 **/
7298static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7299 __be32 res_handle, u8 parm,
7300 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7301{
1da177e4
LT		 7302 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7303
7304 ioarcb->res_handle = res_handle;
7305 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7306 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7307 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7308 ioarcb->cmd_pkt.cdb[1] = parm;
7309 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7310
a32c055f 7311 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7312}
7313
7314/**
7315 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7316 * @ipr_cmd: ipr command struct
7317 *
7318 * This function sets up the SCSI bus attributes and sends
7319 * a Mode Select for Page 28 to activate them.
7320 *
7321 * Return value:
7322 * IPR_RC_JOB_RETURN
7323 **/
7324static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7325{
7326 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7327 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7328 int length;
7329
7330 ENTER;
4733804c
BK		 7331 ipr_scsi_bus_speed_limit(ioa_cfg);
7332 ipr_check_term_power(ioa_cfg, mode_pages);
7333 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7334 length = mode_pages->hdr.length + 1;
7335 mode_pages->hdr.length = 0;
1da177e4
LT		 7336
7337 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7338 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7339 length);
7340
f72919ec
WB		 7341 ipr_cmd->job_step = ipr_set_supported_devs;
7342 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7343 struct ipr_resource_entry, queue);
1da177e4
LT		 7344 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7345
7346 LEAVE;
7347 return IPR_RC_JOB_RETURN;
7348}
7349
7350/**
7351 * ipr_build_mode_sense - Builds a mode sense command
7352 * @ipr_cmd: ipr command struct
7353 * @res: resource entry struct
7354 * @parm: Byte 2 of mode sense command
7355 * @dma_addr: DMA address of mode sense buffer
7356 * @xfer_len: Size of DMA buffer
7357 *
7358 * Return value:
7359 * none
7360 **/
7361static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7362 __be32 res_handle,
a32c055f 7363 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7364{
1da177e4
LT		 7365 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7366
7367 ioarcb->res_handle = res_handle;
7368 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7369 ioarcb->cmd_pkt.cdb[2] = parm;
7370 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7371 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7372
a32c055f 7373 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7374}
7375
dfed823e 7376/**
7377 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7378 * @ipr_cmd: ipr command struct
7379 *
7380 * This function handles the failure of an IOA bringup command.
7381 *
7382 * Return value:
7383 * IPR_RC_JOB_RETURN
7384 **/
7385static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7386{
7387 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7388 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 7389
7390 dev_err(&ioa_cfg->pdev->dev,
7391 "0x%02X failed with IOASC: 0x%08X\n",
7392 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7393
7394 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7395 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e 7396 return IPR_RC_JOB_RETURN;
7397}
7398
7399/**
7400 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7401 * @ipr_cmd: ipr command struct
7402 *
7403 * This function handles the failure of a Mode Sense to the IOAFP.
7404 * Some adapters do not handle all mode pages.
7405 *
7406 * Return value:
7407 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7408 **/
7409static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7410{
f72919ec 7411 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7412 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e 7413
7414 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7415 ipr_cmd->job_step = ipr_set_supported_devs;
7416 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7417 struct ipr_resource_entry, queue);
dfed823e 7418 return IPR_RC_JOB_CONTINUE;
7419 }
7420
7421 return ipr_reset_cmd_failed(ipr_cmd);
7422}
7423
1da177e4
LT		 7424/**
7425 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7426 * @ipr_cmd: ipr command struct
7427 *
7428 * This function send a Page 28 mode sense to the IOA to
7429 * retrieve SCSI bus attributes.
7430 *
7431 * Return value:
7432 * IPR_RC_JOB_RETURN
7433 **/
7434static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7435{
7436 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7437
7438 ENTER;
7439 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7440 0x28, ioa_cfg->vpd_cbs_dma +
7441 offsetof(struct ipr_misc_cbs, mode_pages),
7442 sizeof(struct ipr_mode_pages));
7443
7444 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7445 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7446
7447 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7448
7449 LEAVE;
7450 return IPR_RC_JOB_RETURN;
7451}
7452
ac09c349
BK		 7453/**
7454 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7455 * @ipr_cmd: ipr command struct
7456 *
7457 * This function enables dual IOA RAID support if possible.
7458 *
7459 * Return value:
7460 * IPR_RC_JOB_RETURN
7461 **/
7462static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7463{
7464 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7465 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7466 struct ipr_mode_page24 *mode_page;
7467 int length;
7468
7469 ENTER;
7470 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7471 sizeof(struct ipr_mode_page24));
7472
7473 if (mode_page)
7474 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7475
7476 length = mode_pages->hdr.length + 1;
7477 mode_pages->hdr.length = 0;
7478
7479 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7480 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7481 length);
7482
7483 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7484 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7485
7486 LEAVE;
7487 return IPR_RC_JOB_RETURN;
7488}
7489
7490/**
7491 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7492 * @ipr_cmd: ipr command struct
7493 *
7494 * This function handles the failure of a Mode Sense to the IOAFP.
7495 * Some adapters do not handle all mode pages.
7496 *
7497 * Return value:
7498 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7499 **/
7500static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7501{
96d21f00 7502 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7503
7504 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7505 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7506 return IPR_RC_JOB_CONTINUE;
7507 }
7508
7509 return ipr_reset_cmd_failed(ipr_cmd);
7510}
7511
7512/**
7513 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7514 * @ipr_cmd: ipr command struct
7515 *
7516 * This function send a mode sense to the IOA to retrieve
7517 * the IOA Advanced Function Control mode page.
7518 *
7519 * Return value:
7520 * IPR_RC_JOB_RETURN
7521 **/
7522static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7523{
7524 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7525
7526 ENTER;
7527 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7528 0x24, ioa_cfg->vpd_cbs_dma +
7529 offsetof(struct ipr_misc_cbs, mode_pages),
7530 sizeof(struct ipr_mode_pages));
7531
7532 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7533 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7534
7535 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7536
7537 LEAVE;
7538 return IPR_RC_JOB_RETURN;
7539}
7540
1da177e4
LT		 7541/**
7542 * ipr_init_res_table - Initialize the resource table
7543 * @ipr_cmd: ipr command struct
7544 *
7545 * This function looks through the existing resource table, comparing
7546 * it with the config table. This function will take care of old/new
7547 * devices and schedule adding/removing them from the mid-layer
7548 * as appropriate.
7549 *
7550 * Return value:
7551 * IPR_RC_JOB_CONTINUE
7552 **/
7553static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7554{
7555 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7556 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7557 struct ipr_config_table_entry_wrapper cfgtew;
7558 int entries, found, flag, i;
1da177e4
LT		 7559 LIST_HEAD(old_res);
7560
7561 ENTER;
3e7ebdfa
WB		 7562 if (ioa_cfg->sis64)
7563 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7564 else
7565 flag = ioa_cfg->u.cfg_table->hdr.flags;
7566
7567 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7568 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7569
7570 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7571 list_move_tail(&res->queue, &old_res);
7572
3e7ebdfa 7573 if (ioa_cfg->sis64)
438b0331 7574 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7575 else
7576 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7577
7578 for (i = 0; i < entries; i++) {
7579 if (ioa_cfg->sis64)
7580 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7581 else
7582 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7583 found = 0;
7584
7585 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7586 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7587 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7588 found = 1;
7589 break;
7590 }
7591 }
7592
7593 if (!found) {
7594 if (list_empty(&ioa_cfg->free_res_q)) {
7595 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7596 break;
7597 }
7598
7599 found = 1;
7600 res = list_entry(ioa_cfg->free_res_q.next,
7601 struct ipr_resource_entry, queue);
7602 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7603 ipr_init_res_entry(res, &cfgtew);
1da177e4 7604 res->add_to_ml = 1;
56115598
WB		 7605 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7606 res->sdev->allow_restart = 1;
1da177e4
LT		 7607
7608 if (found)
3e7ebdfa 7609 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7610 }
7611
7612 list_for_each_entry_safe(res, temp, &old_res, queue) {
7613 if (res->sdev) {
7614 res->del_from_ml = 1;
3e7ebdfa 7615 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7616 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7617 }
7618 }
7619
3e7ebdfa
WB		 7620 list_for_each_entry_safe(res, temp, &old_res, queue) {
7621 ipr_clear_res_target(res);
7622 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7623 }
7624
ac09c349
BK		 7625 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7626 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7627 else
7628 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7629
7630 LEAVE;
7631 return IPR_RC_JOB_CONTINUE;
7632}
7633
7634/**
7635 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7636 * @ipr_cmd: ipr command struct
7637 *
7638 * This function sends a Query IOA Configuration command
7639 * to the adapter to retrieve the IOA configuration table.
7640 *
7641 * Return value:
7642 * IPR_RC_JOB_RETURN
7643 **/
7644static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7645{
7646 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7647 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7648 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7649 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7650
7651 ENTER;
ac09c349
BK		 7652 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7653 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7654 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7655 ucode_vpd->major_release, ucode_vpd->card_type,
7656 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7657 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7658 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7659
7660 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7661 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7662 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7663 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7664
3e7ebdfa 7665 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7666 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7667
7668 ipr_cmd->job_step = ipr_init_res_table;
7669
7670 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7671
7672 LEAVE;
7673 return IPR_RC_JOB_RETURN;
7674}
7675
1a47af26
GKB		 7676static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7677{
7678 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7679
7680 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7681 return IPR_RC_JOB_CONTINUE;
7682
7683 return ipr_reset_cmd_failed(ipr_cmd);
7684}
7685
7686static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7687 __be32 res_handle, u8 sa_code)
7688{
7689 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7690
7691 ioarcb->res_handle = res_handle;
7692 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7693 ioarcb->cmd_pkt.cdb[1] = sa_code;
7694 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7695}
7696
7697/**
7698 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7699 * action
7700 *
7701 * Return value:
7702 * none
7703 **/
7704static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7705{
7706 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7707 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7708 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7709
7710 ENTER;
7711
7712 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7713
7714 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7715 ipr_build_ioa_service_action(ipr_cmd,
7716 cpu_to_be32(IPR_IOA_RES_HANDLE),
7717 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7718
7719 ioarcb->cmd_pkt.cdb[2] = 0x40;
7720
7721 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7722 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7723 IPR_SET_SUP_DEVICE_TIMEOUT);
7724
7725 LEAVE;
7726 return IPR_RC_JOB_RETURN;
7727 }
7728
7729 LEAVE;
7730 return IPR_RC_JOB_CONTINUE;
7731}
7732
1da177e4
LT		 7733/**
7734 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7735 * @ipr_cmd: ipr command struct
7736 *
7737 * This utility function sends an inquiry to the adapter.
7738 *
7739 * Return value:
7740 * none
7741 **/
7742static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7743 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7744{
7745 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7746
7747 ENTER;
7748 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7749 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7750
7751 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7752 ioarcb->cmd_pkt.cdb[1] = flags;
7753 ioarcb->cmd_pkt.cdb[2] = page;
7754 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7755
a32c055f 7756 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7757
7758 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7759 LEAVE;
7760}
7761
62275040 7762/**
7763 * ipr_inquiry_page_supported - Is the given inquiry page supported
7764 * @page0: inquiry page 0 buffer
7765 * @page: page code.
7766 *
7767 * This function determines if the specified inquiry page is supported.
7768 *
7769 * Return value:
7770 * 1 if page is supported / 0 if not
7771 **/
7772static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7773{
7774 int i;
7775
7776 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7777 if (page0->page[i] == page)
7778 return 1;
7779
7780 return 0;
7781}
7782
1021b3ff
GKB		 7783/**
7784 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
7785 * @ipr_cmd: ipr command struct
7786 *
7787 * This function sends a Page 0xC4 inquiry to the adapter
7788 * to retrieve software VPD information.
7789 *
7790 * Return value:
7791 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7792 **/
7793static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
7794{
7795 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7796 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7797 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7798
7799 ENTER;
1a47af26 7800 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
1021b3ff
GKB		 7801 memset(pageC4, 0, sizeof(*pageC4));
7802
7803 if (ipr_inquiry_page_supported(page0, 0xC4)) {
7804 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
7805 (ioa_cfg->vpd_cbs_dma
7806 + offsetof(struct ipr_misc_cbs,
7807 pageC4_data)),
7808 sizeof(struct ipr_inquiry_pageC4));
7809 return IPR_RC_JOB_RETURN;
7810 }
7811
7812 LEAVE;
7813 return IPR_RC_JOB_CONTINUE;
7814}
7815
ac09c349
BK		 7816/**
7817 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7818 * @ipr_cmd: ipr command struct
7819 *
7820 * This function sends a Page 0xD0 inquiry to the adapter
7821 * to retrieve adapter capabilities.
7822 *
7823 * Return value:
7824 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7825 **/
7826static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7827{
7828 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7829 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7830 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7831
7832 ENTER;
1021b3ff 7833 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
ac09c349
BK		 7834 memset(cap, 0, sizeof(*cap));
7835
7836 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7837 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7838 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7839 sizeof(struct ipr_inquiry_cap));
7840 return IPR_RC_JOB_RETURN;
7841 }
7842
7843 LEAVE;
7844 return IPR_RC_JOB_CONTINUE;
7845}
7846
1da177e4
LT		 7847/**
7848 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7849 * @ipr_cmd: ipr command struct
7850 *
7851 * This function sends a Page 3 inquiry to the adapter
7852 * to retrieve software VPD information.
7853 *
7854 * Return value:
7855 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7856 **/
7857static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040 7858{
7859 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040 7860
7861 ENTER;
7862
ac09c349 7863 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040 7864
7865 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7866 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7867 sizeof(struct ipr_inquiry_page3));
7868
7869 LEAVE;
7870 return IPR_RC_JOB_RETURN;
7871}
7872
7873/**
7874 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7875 * @ipr_cmd: ipr command struct
7876 *
7877 * This function sends a Page 0 inquiry to the adapter
7878 * to retrieve supported inquiry pages.
7879 *
7880 * Return value:
7881 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7882 **/
7883static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7884{
7885 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7886 char type[5];
7887
7888 ENTER;
7889
7890 /* Grab the type out of the VPD and store it away */
7891 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7892 type[4] = '\0';
7893 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7894
f688f96d
BK		 7895 if (ipr_invalid_adapter(ioa_cfg)) {
7896 dev_err(&ioa_cfg->pdev->dev,
7897 "Adapter not supported in this hardware configuration.\n");
7898
7899 if (!ipr_testmode) {
7900 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7901 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7902 list_add_tail(&ipr_cmd->queue,
7903 &ioa_cfg->hrrq->hrrq_free_q);
7904 return IPR_RC_JOB_RETURN;
7905 }
7906 }
7907
62275040 7908 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7909
62275040 7910 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7911 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7912 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7913
7914 LEAVE;
7915 return IPR_RC_JOB_RETURN;
7916}
7917
7918/**
7919 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7920 * @ipr_cmd: ipr command struct
7921 *
7922 * This function sends a standard inquiry to the adapter.
7923 *
7924 * Return value:
7925 * IPR_RC_JOB_RETURN
7926 **/
7927static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7928{
7929 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7930
7931 ENTER;
62275040 7932 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7933
7934 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7935 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7936 sizeof(struct ipr_ioa_vpd));
7937
7938 LEAVE;
7939 return IPR_RC_JOB_RETURN;
7940}
7941
7942/**
214777ba 7943 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7944 * @ipr_cmd: ipr command struct
7945 *
7946 * This function send an Identify Host Request Response Queue
7947 * command to establish the HRRQ with the adapter.
7948 *
7949 * Return value:
7950 * IPR_RC_JOB_RETURN
7951 **/
214777ba 7952static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7953{
7954 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7955 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7956 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7957
7958 ENTER;
05a6538a 7959 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7960 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7961
56d6aa33 7962 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7963 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7964
05a6538a 7965 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7966 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7967
05a6538a 7968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7969 if (ioa_cfg->sis64)
7970 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7971
05a6538a 7972 if (ioa_cfg->nvectors == 1)
7973 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7974 else
7975 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7976
7977 ioarcb->cmd_pkt.cdb[2] =
7978 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7979 ioarcb->cmd_pkt.cdb[3] =
7980 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7981 ioarcb->cmd_pkt.cdb[4] =
7982 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7983 ioarcb->cmd_pkt.cdb[5] =
7984 ((u64) hrrq->host_rrq_dma) & 0xff;
7985 ioarcb->cmd_pkt.cdb[7] =
7986 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7987 ioarcb->cmd_pkt.cdb[8] =
7988 (sizeof(u32) * hrrq->size) & 0xff;
7989
7990 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7991 ioarcb->cmd_pkt.cdb[9] =
7992 ioa_cfg->identify_hrrq_index;
1da177e4 7993
05a6538a 7994 if (ioa_cfg->sis64) {
7995 ioarcb->cmd_pkt.cdb[10] =
7996 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7997 ioarcb->cmd_pkt.cdb[11] =
7998 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7999 ioarcb->cmd_pkt.cdb[12] =
8000 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8001 ioarcb->cmd_pkt.cdb[13] =
8002 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8003 }
8004
8005 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 8006 ioarcb->cmd_pkt.cdb[14] =
8007 ioa_cfg->identify_hrrq_index;
05a6538a 8008
8009 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8010 IPR_INTERNAL_TIMEOUT);
8011
56d6aa33 8012 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8013 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 8014
8015 LEAVE;
8016 return IPR_RC_JOB_RETURN;
05a6538a 8017 }
8018
1da177e4 8019 LEAVE;
05a6538a 8020 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8021}
8022
8023/**
8024 * ipr_reset_timer_done - Adapter reset timer function
8025 * @ipr_cmd: ipr command struct
8026 *
8027 * Description: This function is used in adapter reset processing
8028 * for timing events. If the reset_cmd pointer in the IOA
8029 * config struct is not this adapter's we are doing nested
8030 * resets and fail_all_ops will take care of freeing the
8031 * command block.
8032 *
8033 * Return value:
8034 * none
8035 **/
8036static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8037{
8038 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8039 unsigned long lock_flags = 0;
8040
8041 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8042
8043 if (ioa_cfg->reset_cmd == ipr_cmd) {
8044 list_del(&ipr_cmd->queue);
8045 ipr_cmd->done(ipr_cmd);
8046 }
8047
8048 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8049}
8050
8051/**
8052 * ipr_reset_start_timer - Start a timer for adapter reset job
8053 * @ipr_cmd: ipr command struct
8054 * @timeout: timeout value
8055 *
8056 * Description: This function is used in adapter reset processing
8057 * for timing events. If the reset_cmd pointer in the IOA
8058 * config struct is not this adapter's we are doing nested
8059 * resets and fail_all_ops will take care of freeing the
8060 * command block.
8061 *
8062 * Return value:
8063 * none
8064 **/
8065static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8066 unsigned long timeout)
8067{
05a6538a 8068
8069 ENTER;
8070 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8071 ipr_cmd->done = ipr_reset_ioa_job;
8072
8073 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8074 ipr_cmd->timer.expires = jiffies + timeout;
8075 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8076 add_timer(&ipr_cmd->timer);
8077}
8078
8079/**
8080 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8081 * @ioa_cfg: ioa cfg struct
8082 *
8083 * Return value:
8084 * nothing
8085 **/
8086static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8087{
05a6538a 8088 struct ipr_hrr_queue *hrrq;
1da177e4 8089
05a6538a 8090 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 8091 spin_lock(&hrrq->_lock);
05a6538a 8092 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8093
8094 /* Initialize Host RRQ pointers */
8095 hrrq->hrrq_start = hrrq->host_rrq;
8096 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8097 hrrq->hrrq_curr = hrrq->hrrq_start;
8098 hrrq->toggle_bit = 1;
56d6aa33 8099 spin_unlock(&hrrq->_lock);
05a6538a 8100 }
56d6aa33 8101 wmb();
05a6538a 8102
56d6aa33 8103 ioa_cfg->identify_hrrq_index = 0;
8104 if (ioa_cfg->hrrq_num == 1)
8105 atomic_set(&ioa_cfg->hrrq_index, 0);
8106 else
8107 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 8108
8109 /* Zero out config table */
3e7ebdfa 8110 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 8111}
8112
214777ba
WB		 8113/**
8114 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8115 * @ipr_cmd: ipr command struct
8116 *
8117 * Return value:
8118 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8119 **/
8120static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8121{
8122 unsigned long stage, stage_time;
8123 u32 feedback;
8124 volatile u32 int_reg;
8125 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8126 u64 maskval = 0;
8127
8128 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8129 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8130 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8131
8132 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8133
8134 /* sanity check the stage_time value */
438b0331
WB		 8135 if (stage_time == 0)
8136 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8137 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 8138 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8139 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8140 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8141
8142 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8143 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8144 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8145 stage_time = ioa_cfg->transop_timeout;
8146 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8147 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 8148 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8149 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8150 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8151 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8152 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8153 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8154 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8155 return IPR_RC_JOB_CONTINUE;
8156 }
214777ba
WB		 8157 }
8158
8159 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8160 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8161 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8162 ipr_cmd->done = ipr_reset_ioa_job;
8163 add_timer(&ipr_cmd->timer);
05a6538a 8164
8165 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 8166
8167 return IPR_RC_JOB_RETURN;
8168}
8169
1da177e4
LT		 8170/**
8171 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8172 * @ipr_cmd: ipr command struct
8173 *
8174 * This function reinitializes some control blocks and
8175 * enables destructive diagnostics on the adapter.
8176 *
8177 * Return value:
8178 * IPR_RC_JOB_RETURN
8179 **/
8180static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8181{
8182 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8183 volatile u32 int_reg;
7be96900 8184 volatile u64 maskval;
56d6aa33 8185 int i;
1da177e4
LT		 8186
8187 ENTER;
214777ba 8188 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 8189 ipr_init_ioa_mem(ioa_cfg);
8190
56d6aa33 8191 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8192 spin_lock(&ioa_cfg->hrrq[i]._lock);
8193 ioa_cfg->hrrq[i].allow_interrupts = 1;
8194 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8195 }
8196 wmb();
8701f185
WB		 8197 if (ioa_cfg->sis64) {
8198 /* Set the adapter to the correct endian mode. */
8199 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8200 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8201 }
8202
7be96900 8203 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 8204
8205 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8206 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 8207 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 8208 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8209 return IPR_RC_JOB_CONTINUE;
8210 }
8211
8212 /* Enable destructive diagnostics on IOA */
214777ba
WB		 8213 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8214
7be96900
WB		 8215 if (ioa_cfg->sis64) {
8216 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8217 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8218 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8219 } else
8220 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 8221
1da177e4
LT		 8222 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8223
8224 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8225
214777ba
WB		 8226 if (ioa_cfg->sis64) {
8227 ipr_cmd->job_step = ipr_reset_next_stage;
8228 return IPR_RC_JOB_CONTINUE;
8229 }
8230
1da177e4 8231 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 8232 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 8233 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8234 ipr_cmd->done = ipr_reset_ioa_job;
8235 add_timer(&ipr_cmd->timer);
05a6538a 8236 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8237
8238 LEAVE;
8239 return IPR_RC_JOB_RETURN;
8240}
8241
8242/**
8243 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8244 * @ipr_cmd: ipr command struct
8245 *
8246 * This function is invoked when an adapter dump has run out
8247 * of processing time.
8248 *
8249 * Return value:
8250 * IPR_RC_JOB_CONTINUE
8251 **/
8252static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8253{
8254 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8255
8256 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 8257 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8258 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 8259 ioa_cfg->sdt_state = ABORT_DUMP;
8260
4c647e90 8261 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 8262 ipr_cmd->job_step = ipr_reset_alert;
8263
8264 return IPR_RC_JOB_CONTINUE;
8265}
8266
8267/**
8268 * ipr_unit_check_no_data - Log a unit check/no data error log
8269 * @ioa_cfg: ioa config struct
8270 *
8271 * Logs an error indicating the adapter unit checked, but for some
8272 * reason, we were unable to fetch the unit check buffer.
8273 *
8274 * Return value:
8275 * nothing
8276 **/
8277static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8278{
8279 ioa_cfg->errors_logged++;
8280 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8281}
8282
8283/**
8284 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8285 * @ioa_cfg: ioa config struct
8286 *
8287 * Fetches the unit check buffer from the adapter by clocking the data
8288 * through the mailbox register.
8289 *
8290 * Return value:
8291 * nothing
8292 **/
8293static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8294{
8295 unsigned long mailbox;
8296 struct ipr_hostrcb *hostrcb;
8297 struct ipr_uc_sdt sdt;
8298 int rc, length;
65f56475 8299 u32 ioasc;
1da177e4
LT		 8300
8301 mailbox = readl(ioa_cfg->ioa_mailbox);
8302
dcbad00e 8303 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8304 ipr_unit_check_no_data(ioa_cfg);
8305 return;
8306 }
8307
8308 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8309 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8310 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8311
dcbad00e
WB		 8312 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8313 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8314 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8315 ipr_unit_check_no_data(ioa_cfg);
8316 return;
8317 }
8318
8319 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8320 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8321 length = be32_to_cpu(sdt.entry[0].end_token);
8322 else
8323 length = (be32_to_cpu(sdt.entry[0].end_token) -
8324 be32_to_cpu(sdt.entry[0].start_token)) &
8325 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8326
8327 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8328 struct ipr_hostrcb, queue);
8329 list_del(&hostrcb->queue);
8330 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8331
8332 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8333 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8334 (__be32 *)&hostrcb->hcam,
8335 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8336
65f56475 8337 if (!rc) {
1da177e4 8338 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8339 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8340 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8341 ioa_cfg->sdt_state == GET_DUMP)
8342 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8343 } else
1da177e4
LT		 8344 ipr_unit_check_no_data(ioa_cfg);
8345
8346 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8347}
8348
110def85
WB		 8349/**
8350 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8351 * @ipr_cmd: ipr command struct
8352 *
8353 * Description: This function will call to get the unit check buffer.
8354 *
8355 * Return value:
8356 * IPR_RC_JOB_RETURN
8357 **/
8358static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8359{
8360 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8361
8362 ENTER;
8363 ioa_cfg->ioa_unit_checked = 0;
8364 ipr_get_unit_check_buffer(ioa_cfg);
8365 ipr_cmd->job_step = ipr_reset_alert;
8366 ipr_reset_start_timer(ipr_cmd, 0);
8367
8368 LEAVE;
8369 return IPR_RC_JOB_RETURN;
8370}
8371
f41f1d99
GKB		 8372static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8373{
8374 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8375
8376 ENTER;
8377
8378 if (ioa_cfg->sdt_state != GET_DUMP)
8379 return IPR_RC_JOB_RETURN;
8380
8381 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8382 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8383 IPR_PCII_MAILBOX_STABLE)) {
8384
8385 if (!ipr_cmd->u.time_left)
8386 dev_err(&ioa_cfg->pdev->dev,
8387 "Timed out waiting for Mailbox register.\n");
8388
8389 ioa_cfg->sdt_state = READ_DUMP;
8390 ioa_cfg->dump_timeout = 0;
8391 if (ioa_cfg->sis64)
8392 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8393 else
8394 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8395 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8396 schedule_work(&ioa_cfg->work_q);
8397
8398 } else {
8399 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8400 ipr_reset_start_timer(ipr_cmd,
8401 IPR_CHECK_FOR_RESET_TIMEOUT);
8402 }
8403
8404 LEAVE;
8405 return IPR_RC_JOB_RETURN;
8406}
8407
1da177e4
LT		 8408/**
8409 * ipr_reset_restore_cfg_space - Restore PCI config space.
8410 * @ipr_cmd: ipr command struct
8411 *
8412 * Description: This function restores the saved PCI config space of
8413 * the adapter, fails all outstanding ops back to the callers, and
8414 * fetches the dump/unit check if applicable to this reset.
8415 *
8416 * Return value:
8417 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8418 **/
8419static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8420{
8421 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8422 u32 int_reg;
1da177e4
LT		 8423
8424 ENTER;
99c965dd 8425 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8426 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8427
8428 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8429 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8430 return IPR_RC_JOB_CONTINUE;
8431 }
8432
8433 ipr_fail_all_ops(ioa_cfg);
8434
8701f185
WB		 8435 if (ioa_cfg->sis64) {
8436 /* Set the adapter to the correct endian mode. */
8437 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8438 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8439 }
8440
1da177e4 8441 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8442 if (ioa_cfg->sis64) {
8443 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8444 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8445 return IPR_RC_JOB_RETURN;
8446 } else {
8447 ioa_cfg->ioa_unit_checked = 0;
8448 ipr_get_unit_check_buffer(ioa_cfg);
8449 ipr_cmd->job_step = ipr_reset_alert;
8450 ipr_reset_start_timer(ipr_cmd, 0);
8451 return IPR_RC_JOB_RETURN;
8452 }
1da177e4
LT		 8453 }
8454
8455 if (ioa_cfg->in_ioa_bringdown) {
8456 ipr_cmd->job_step = ipr_ioa_bringdown_done;
f41f1d99
GKB		 8457 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8458 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8459 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
1da177e4
LT		 8460 } else {
8461 ipr_cmd->job_step = ipr_reset_enable_ioa;
1da177e4
LT		 8462 }
8463
438b0331 8464 LEAVE;
1da177e4
LT		 8465 return IPR_RC_JOB_CONTINUE;
8466}
8467
e619e1a7
BK		 8468/**
8469 * ipr_reset_bist_done - BIST has completed on the adapter.
8470 * @ipr_cmd: ipr command struct
8471 *
8472 * Description: Unblock config space and resume the reset process.
8473 *
8474 * Return value:
8475 * IPR_RC_JOB_CONTINUE
8476 **/
8477static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8478{
fb51ccbf
JK		 8479 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8480
e619e1a7 8481 ENTER;
fb51ccbf
JK		 8482 if (ioa_cfg->cfg_locked)
8483 pci_cfg_access_unlock(ioa_cfg->pdev);
8484 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8485 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8486 LEAVE;
8487 return IPR_RC_JOB_CONTINUE;
8488}
8489
1da177e4
LT		 8490/**
8491 * ipr_reset_start_bist - Run BIST on the adapter.
8492 * @ipr_cmd: ipr command struct
8493 *
8494 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8495 *
8496 * Return value:
8497 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8498 **/
8499static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8500{
8501 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8502 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8503
8504 ENTER;
cb237ef7
WB		 8505 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8506 writel(IPR_UPROCI_SIS64_START_BIST,
8507 ioa_cfg->regs.set_uproc_interrupt_reg32);
8508 else
8509 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8510
8511 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8512 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8513 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8514 rc = IPR_RC_JOB_RETURN;
cb237ef7 8515 } else {
fb51ccbf
JK		 8516 if (ioa_cfg->cfg_locked)
8517 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8518 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8519 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8520 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8521 }
8522
8523 LEAVE;
8524 return rc;
8525}
8526
463fc696
BK		 8527/**
8528 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8529 * @ipr_cmd: ipr command struct
8530 *
8531 * Description: This clears PCI reset to the adapter and delays two seconds.
8532 *
8533 * Return value:
8534 * IPR_RC_JOB_RETURN
8535 **/
8536static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8537{
8538 ENTER;
463fc696
BK		 8539 ipr_cmd->job_step = ipr_reset_bist_done;
8540 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8541 LEAVE;
8542 return IPR_RC_JOB_RETURN;
8543}
8544
2796ca5e
BK		 8545/**
8546 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8547 * @work: work struct
8548 *
8549 * Description: This pulses warm reset to a slot.
8550 *
8551 **/
8552static void ipr_reset_reset_work(struct work_struct *work)
8553{
8554 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8555 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8556 struct pci_dev *pdev = ioa_cfg->pdev;
8557 unsigned long lock_flags = 0;
8558
8559 ENTER;
8560 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8561 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8562 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8563
8564 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8565 if (ioa_cfg->reset_cmd == ipr_cmd)
8566 ipr_reset_ioa_job(ipr_cmd);
8567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8568 LEAVE;
8569}
8570
463fc696
BK		 8571/**
8572 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8573 * @ipr_cmd: ipr command struct
8574 *
8575 * Description: This asserts PCI reset to the adapter.
8576 *
8577 * Return value:
8578 * IPR_RC_JOB_RETURN
8579 **/
8580static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8581{
8582 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
463fc696
BK		 8583
8584 ENTER;
2796ca5e
BK		 8585 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8586 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
463fc696 8587 ipr_cmd->job_step = ipr_reset_slot_reset_done;
463fc696
BK		 8588 LEAVE;
8589 return IPR_RC_JOB_RETURN;
8590}
8591
fb51ccbf
JK		 8592/**
8593 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8594 * @ipr_cmd: ipr command struct
8595 *
8596 * Description: This attempts to block config access to the IOA.
8597 *
8598 * Return value:
8599 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8600 **/
8601static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8602{
8603 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8604 int rc = IPR_RC_JOB_CONTINUE;
8605
8606 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8607 ioa_cfg->cfg_locked = 1;
8608 ipr_cmd->job_step = ioa_cfg->reset;
8609 } else {
8610 if (ipr_cmd->u.time_left) {
8611 rc = IPR_RC_JOB_RETURN;
8612 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8613 ipr_reset_start_timer(ipr_cmd,
8614 IPR_CHECK_FOR_RESET_TIMEOUT);
8615 } else {
8616 ipr_cmd->job_step = ioa_cfg->reset;
8617 dev_err(&ioa_cfg->pdev->dev,
8618 "Timed out waiting to lock config access. Resetting anyway.\n");
8619 }
8620 }
8621
8622 return rc;
8623}
8624
8625/**
8626 * ipr_reset_block_config_access - Block config access to the IOA
8627 * @ipr_cmd: ipr command struct
8628 *
8629 * Description: This attempts to block config access to the IOA
8630 *
8631 * Return value:
8632 * IPR_RC_JOB_CONTINUE
8633 **/
8634static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8635{
8636 ipr_cmd->ioa_cfg->cfg_locked = 0;
8637 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8638 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8639 return IPR_RC_JOB_CONTINUE;
8640}
8641
1da177e4
LT		 8642/**
8643 * ipr_reset_allowed - Query whether or not IOA can be reset
8644 * @ioa_cfg: ioa config struct
8645 *
8646 * Return value:
8647 * 0 if reset not allowed / non-zero if reset is allowed
8648 **/
8649static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8650{
8651 volatile u32 temp_reg;
8652
8653 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8654 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8655}
8656
8657/**
8658 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8659 * @ipr_cmd: ipr command struct
8660 *
8661 * Description: This function waits for adapter permission to run BIST,
8662 * then runs BIST. If the adapter does not give permission after a
8663 * reasonable time, we will reset the adapter anyway. The impact of
8664 * resetting the adapter without warning the adapter is the risk of
8665 * losing the persistent error log on the adapter. If the adapter is
8666 * reset while it is writing to the flash on the adapter, the flash
8667 * segment will have bad ECC and be zeroed.
8668 *
8669 * Return value:
8670 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8671 **/
8672static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8673{
8674 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8675 int rc = IPR_RC_JOB_RETURN;
8676
8677 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8678 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8679 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8680 } else {
fb51ccbf 8681 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8682 rc = IPR_RC_JOB_CONTINUE;
8683 }
8684
8685 return rc;
8686}
8687
8688/**
8701f185 8689 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8690 * @ipr_cmd: ipr command struct
8691 *
8692 * Description: This function alerts the adapter that it will be reset.
8693 * If memory space is not currently enabled, proceed directly
8694 * to running BIST on the adapter. The timer must always be started
8695 * so we guarantee we do not run BIST from ipr_isr.
8696 *
8697 * Return value:
8698 * IPR_RC_JOB_RETURN
8699 **/
8700static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8701{
8702 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8703 u16 cmd_reg;
8704 int rc;
8705
8706 ENTER;
8707 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8708
8709 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8710 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8711 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8712 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8713 } else {
fb51ccbf 8714 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8715 }
8716
8717 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8718 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8719
8720 LEAVE;
8721 return IPR_RC_JOB_RETURN;
8722}
8723
4fdd7c7a
BK		 8724/**
8725 * ipr_reset_quiesce_done - Complete IOA disconnect
8726 * @ipr_cmd: ipr command struct
8727 *
8728 * Description: Freeze the adapter to complete quiesce processing
8729 *
8730 * Return value:
8731 * IPR_RC_JOB_CONTINUE
8732 **/
8733static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8734{
8735 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8736
8737 ENTER;
8738 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8739 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8740 LEAVE;
8741 return IPR_RC_JOB_CONTINUE;
8742}
8743
8744/**
8745 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8746 * @ipr_cmd: ipr command struct
8747 *
8748 * Description: Ensure nothing is outstanding to the IOA and
8749 * proceed with IOA disconnect. Otherwise reset the IOA.
8750 *
8751 * Return value:
8752 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8753 **/
8754static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8755{
8756 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8757 struct ipr_cmnd *loop_cmd;
8758 struct ipr_hrr_queue *hrrq;
8759 int rc = IPR_RC_JOB_CONTINUE;
8760 int count = 0;
8761
8762 ENTER;
8763 ipr_cmd->job_step = ipr_reset_quiesce_done;
8764
8765 for_each_hrrq(hrrq, ioa_cfg) {
8766 spin_lock(&hrrq->_lock);
8767 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8768 count++;
8769 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8770 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8771 rc = IPR_RC_JOB_RETURN;
8772 break;
8773 }
8774 spin_unlock(&hrrq->_lock);
8775
8776 if (count)
8777 break;
8778 }
8779
8780 LEAVE;
8781 return rc;
8782}
8783
8784/**
8785 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8786 * @ipr_cmd: ipr command struct
8787 *
8788 * Description: Cancel any oustanding HCAMs to the IOA.
8789 *
8790 * Return value:
8791 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8792 **/
8793static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8794{
8795 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8796 int rc = IPR_RC_JOB_CONTINUE;
8797 struct ipr_cmd_pkt *cmd_pkt;
8798 struct ipr_cmnd *hcam_cmd;
8799 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8800
8801 ENTER;
8802 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8803
8804 if (!hrrq->ioa_is_dead) {
8805 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8806 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8807 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8808 continue;
8809
8810 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8811 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8812 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8813 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8814 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8815 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8816 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8817 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8818 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8819 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8820 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8821 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8822 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8823 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8824
8825 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8826 IPR_CANCEL_TIMEOUT);
8827
8828 rc = IPR_RC_JOB_RETURN;
8829 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8830 break;
8831 }
8832 }
8833 } else
8834 ipr_cmd->job_step = ipr_reset_alert;
8835
8836 LEAVE;
8837 return rc;
8838}
8839
1da177e4
LT		 8840/**
8841 * ipr_reset_ucode_download_done - Microcode download completion
8842 * @ipr_cmd: ipr command struct
8843 *
8844 * Description: This function unmaps the microcode download buffer.
8845 *
8846 * Return value:
8847 * IPR_RC_JOB_CONTINUE
8848 **/
8849static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8850{
8851 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8852 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8853
d73341bf 8854 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 8855 sglist->num_sg, DMA_TO_DEVICE);
8856
8857 ipr_cmd->job_step = ipr_reset_alert;
8858 return IPR_RC_JOB_CONTINUE;
8859}
8860
8861/**
8862 * ipr_reset_ucode_download - Download microcode to the adapter
8863 * @ipr_cmd: ipr command struct
8864 *
8865 * Description: This function checks to see if it there is microcode
8866 * to download to the adapter. If there is, a download is performed.
8867 *
8868 * Return value:
8869 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8870 **/
8871static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8872{
8873 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8874 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8875
8876 ENTER;
8877 ipr_cmd->job_step = ipr_reset_alert;
8878
8879 if (!sglist)
8880 return IPR_RC_JOB_CONTINUE;
8881
8882 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8883 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8884 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8885 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8886 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8887 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8888 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8889
a32c055f
WB		 8890 if (ioa_cfg->sis64)
8891 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8892 else
8893 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8894 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8895
8896 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8897 IPR_WRITE_BUFFER_TIMEOUT);
8898
8899 LEAVE;
8900 return IPR_RC_JOB_RETURN;
8901}
8902
8903/**
8904 * ipr_reset_shutdown_ioa - Shutdown the adapter
8905 * @ipr_cmd: ipr command struct
8906 *
8907 * Description: This function issues an adapter shutdown of the
8908 * specified type to the specified adapter as part of the
8909 * adapter reset job.
8910 *
8911 * Return value:
8912 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8913 **/
8914static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8915{
8916 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8917 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8918 unsigned long timeout;
8919 int rc = IPR_RC_JOB_CONTINUE;
8920
8921 ENTER;
4fdd7c7a
BK		 8922 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
8923 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8924 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
56d6aa33 8925 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8926 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8927 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8928 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8929 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8930
ac09c349
BK		 8931 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8932 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8933 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8934 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8935 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8936 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8937 else
ac09c349 8938 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8939
8940 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8941
8942 rc = IPR_RC_JOB_RETURN;
8943 ipr_cmd->job_step = ipr_reset_ucode_download;
8944 } else
8945 ipr_cmd->job_step = ipr_reset_alert;
8946
8947 LEAVE;
8948 return rc;
8949}
8950
8951/**
8952 * ipr_reset_ioa_job - Adapter reset job
8953 * @ipr_cmd: ipr command struct
8954 *
8955 * Description: This function is the job router for the adapter reset job.
8956 *
8957 * Return value:
8958 * none
8959 **/
8960static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8961{
8962 u32 rc, ioasc;
1da177e4
LT		 8963 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8964
8965 do {
96d21f00 8966 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8967
8968 if (ioa_cfg->reset_cmd != ipr_cmd) {
8969 /*
8970 * We are doing nested adapter resets and this is
8971 * not the current reset job.
8972 */
05a6538a 8973 list_add_tail(&ipr_cmd->queue,
8974 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8975 return;
8976 }
8977
8978 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e 8979 rc = ipr_cmd->job_step_failed(ipr_cmd);
8980 if (rc == IPR_RC_JOB_RETURN)
8981 return;
1da177e4
LT		 8982 }
8983
8984 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8985 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8986 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8987 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8988}
8989
8990/**
8991 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8992 * @ioa_cfg: ioa config struct
8993 * @job_step: first job step of reset job
8994 * @shutdown_type: shutdown type
8995 *
8996 * Description: This function will initiate the reset of the given adapter
8997 * starting at the selected job step.
8998 * If the caller needs to wait on the completion of the reset,
8999 * the caller must sleep on the reset_wait_q.
9000 *
9001 * Return value:
9002 * none
9003 **/
9004static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9005 int (*job_step) (struct ipr_cmnd *),
9006 enum ipr_shutdown_type shutdown_type)
9007{
9008 struct ipr_cmnd *ipr_cmd;
56d6aa33 9009 int i;
1da177e4
LT		 9010
9011 ioa_cfg->in_reset_reload = 1;
56d6aa33 9012 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9013 spin_lock(&ioa_cfg->hrrq[i]._lock);
9014 ioa_cfg->hrrq[i].allow_cmds = 0;
9015 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9016 }
9017 wmb();
bfae7820
BK		 9018 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
9019 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 9020
9021 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9022 ioa_cfg->reset_cmd = ipr_cmd;
9023 ipr_cmd->job_step = job_step;
9024 ipr_cmd->u.shutdown_type = shutdown_type;
9025
9026 ipr_reset_ioa_job(ipr_cmd);
9027}
9028
9029/**
9030 * ipr_initiate_ioa_reset - Initiate an adapter reset
9031 * @ioa_cfg: ioa config struct
9032 * @shutdown_type: shutdown type
9033 *
9034 * Description: This function will initiate the reset of the given adapter.
9035 * If the caller needs to wait on the completion of the reset,
9036 * the caller must sleep on the reset_wait_q.
9037 *
9038 * Return value:
9039 * none
9040 **/
9041static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9042 enum ipr_shutdown_type shutdown_type)
9043{
56d6aa33 9044 int i;
9045
9046 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 9047 return;
9048
41e9a696
BK		 9049 if (ioa_cfg->in_reset_reload) {
9050 if (ioa_cfg->sdt_state == GET_DUMP)
9051 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9052 else if (ioa_cfg->sdt_state == READ_DUMP)
9053 ioa_cfg->sdt_state = ABORT_DUMP;
9054 }
1da177e4
LT		 9055
9056 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9057 dev_err(&ioa_cfg->pdev->dev,
9058 "IOA taken offline - error recovery failed\n");
9059
9060 ioa_cfg->reset_retries = 0;
56d6aa33 9061 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9062 spin_lock(&ioa_cfg->hrrq[i]._lock);
9063 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9064 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9065 }
9066 wmb();
1da177e4
LT		 9067
9068 if (ioa_cfg->in_ioa_bringdown) {
9069 ioa_cfg->reset_cmd = NULL;
9070 ioa_cfg->in_reset_reload = 0;
9071 ipr_fail_all_ops(ioa_cfg);
9072 wake_up_all(&ioa_cfg->reset_wait_q);
9073
bfae7820
BK		 9074 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9075 spin_unlock_irq(ioa_cfg->host->host_lock);
9076 scsi_unblock_requests(ioa_cfg->host);
9077 spin_lock_irq(ioa_cfg->host->host_lock);
9078 }
1da177e4
LT		 9079 return;
9080 } else {
9081 ioa_cfg->in_ioa_bringdown = 1;
9082 shutdown_type = IPR_SHUTDOWN_NONE;
9083 }
9084 }
9085
9086 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9087 shutdown_type);
9088}
9089
f8a88b19
LV		 9090/**
9091 * ipr_reset_freeze - Hold off all I/O activity
9092 * @ipr_cmd: ipr command struct
9093 *
9094 * Description: If the PCI slot is frozen, hold off all I/O
9095 * activity; then, as soon as the slot is available again,
9096 * initiate an adapter reset.
9097 */
9098static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9099{
56d6aa33 9100 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9101 int i;
9102
f8a88b19 9103 /* Disallow new interrupts, avoid loop */
56d6aa33 9104 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9105 spin_lock(&ioa_cfg->hrrq[i]._lock);
9106 ioa_cfg->hrrq[i].allow_interrupts = 0;
9107 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9108 }
9109 wmb();
05a6538a 9110 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 9111 ipr_cmd->done = ipr_reset_ioa_job;
9112 return IPR_RC_JOB_RETURN;
9113}
9114
6270e593
BK		 9115/**
9116 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9117 * @pdev: PCI device struct
9118 *
9119 * Description: This routine is called to tell us that the MMIO
9120 * access to the IOA has been restored
9121 */
9122static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9123{
9124 unsigned long flags = 0;
9125 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9126
9127 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9128 if (!ioa_cfg->probe_done)
9129 pci_save_state(pdev);
9130 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9131 return PCI_ERS_RESULT_NEED_RESET;
9132}
9133
f8a88b19
LV		 9134/**
9135 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9136 * @pdev: PCI device struct
9137 *
9138 * Description: This routine is called to tell us that the PCI bus
9139 * is down. Can't do anything here, except put the device driver
9140 * into a holding pattern, waiting for the PCI bus to come back.
9141 */
9142static void ipr_pci_frozen(struct pci_dev *pdev)
9143{
9144 unsigned long flags = 0;
9145 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9146
9147 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9148 if (ioa_cfg->probe_done)
9149 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 9150 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9151}
9152
9153/**
9154 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9155 * @pdev: PCI device struct
9156 *
9157 * Description: This routine is called by the pci error recovery
9158 * code after the PCI slot has been reset, just before we
9159 * should resume normal operations.
9160 */
9161static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9162{
9163 unsigned long flags = 0;
9164 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9165
9166 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9167 if (ioa_cfg->probe_done) {
9168 if (ioa_cfg->needs_warm_reset)
9169 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9170 else
9171 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9172 IPR_SHUTDOWN_NONE);
9173 } else
9174 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9175 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9176 return PCI_ERS_RESULT_RECOVERED;
9177}
9178
9179/**
9180 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9181 * @pdev: PCI device struct
9182 *
9183 * Description: This routine is called when the PCI bus has
9184 * permanently failed.
9185 */
9186static void ipr_pci_perm_failure(struct pci_dev *pdev)
9187{
9188 unsigned long flags = 0;
9189 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 9190 int i;
f8a88b19
LV		 9191
9192 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9193 if (ioa_cfg->probe_done) {
9194 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9195 ioa_cfg->sdt_state = ABORT_DUMP;
9196 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9197 ioa_cfg->in_ioa_bringdown = 1;
9198 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9199 spin_lock(&ioa_cfg->hrrq[i]._lock);
9200 ioa_cfg->hrrq[i].allow_cmds = 0;
9201 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9202 }
9203 wmb();
9204 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9205 } else
9206 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9207 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9208}
9209
9210/**
9211 * ipr_pci_error_detected - Called when a PCI error is detected.
9212 * @pdev: PCI device struct
9213 * @state: PCI channel state
9214 *
9215 * Description: Called when a PCI error is detected.
9216 *
9217 * Return value:
9218 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9219 */
9220static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9221 pci_channel_state_t state)
9222{
9223 switch (state) {
9224 case pci_channel_io_frozen:
9225 ipr_pci_frozen(pdev);
6270e593 9226 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 9227 case pci_channel_io_perm_failure:
9228 ipr_pci_perm_failure(pdev);
9229 return PCI_ERS_RESULT_DISCONNECT;
9230 break;
9231 default:
9232 break;
9233 }
9234 return PCI_ERS_RESULT_NEED_RESET;
9235}
9236
1da177e4
LT		 9237/**
9238 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9239 * @ioa_cfg: ioa cfg struct
9240 *
9241 * Description: This is the second phase of adapter intialization
9242 * This function takes care of initilizing the adapter to the point
9243 * where it can accept new commands.
9244
9245 * Return value:
b1c11812 9246 * 0 on success / -EIO on failure
1da177e4 9247 **/
6f039790 9248static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9249{
9250 int rc = 0;
9251 unsigned long host_lock_flags = 0;
9252
9253 ENTER;
9254 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9255 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 9256 ioa_cfg->probe_done = 1;
ce155cce 9257 if (ioa_cfg->needs_hard_reset) {
9258 ioa_cfg->needs_hard_reset = 0;
9259 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9260 } else
9261 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9262 IPR_SHUTDOWN_NONE);
1da177e4 9263 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
1da177e4
LT		 9264
9265 LEAVE;
9266 return rc;
9267}
9268
9269/**
9270 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9271 * @ioa_cfg: ioa config struct
9272 *
9273 * Return value:
9274 * none
9275 **/
9276static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9277{
9278 int i;
9279
a65e8f12
BK		 9280 if (ioa_cfg->ipr_cmnd_list) {
9281 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9282 if (ioa_cfg->ipr_cmnd_list[i])
9283 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9284 ioa_cfg->ipr_cmnd_list[i],
9285 ioa_cfg->ipr_cmnd_list_dma[i]);
1da177e4 9286
a65e8f12
BK		 9287 ioa_cfg->ipr_cmnd_list[i] = NULL;
9288 }
1da177e4
LT		 9289 }
9290
9291 if (ioa_cfg->ipr_cmd_pool)
d73341bf 9292 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 9293
89aad428
BK		 9294 kfree(ioa_cfg->ipr_cmnd_list);
9295 kfree(ioa_cfg->ipr_cmnd_list_dma);
9296 ioa_cfg->ipr_cmnd_list = NULL;
9297 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 9298 ioa_cfg->ipr_cmd_pool = NULL;
9299}
9300
9301/**
9302 * ipr_free_mem - Frees memory allocated for an adapter
9303 * @ioa_cfg: ioa cfg struct
9304 *
9305 * Return value:
9306 * nothing
9307 **/
9308static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9309{
9310 int i;
9311
9312 kfree(ioa_cfg->res_entries);
d73341bf
AB		 9313 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9314 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 9315 ipr_free_cmd_blks(ioa_cfg);
05a6538a 9316
9317 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 9318 dma_free_coherent(&ioa_cfg->pdev->dev,
9319 sizeof(u32) * ioa_cfg->hrrq[i].size,
9320 ioa_cfg->hrrq[i].host_rrq,
9321 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9322
d73341bf
AB		 9323 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9324 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4
LT		 9325
9326 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9327 dma_free_coherent(&ioa_cfg->pdev->dev,
9328 sizeof(struct ipr_hostrcb),
9329 ioa_cfg->hostrcb[i],
9330 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 9331 }
9332
9333 ipr_free_dump(ioa_cfg);
1da177e4
LT		 9334 kfree(ioa_cfg->trace);
9335}
9336
9337/**
2796ca5e
BK		 9338 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9339 * @ioa_cfg: ipr cfg struct
1da177e4 9340 *
2796ca5e 9341 * This function frees all allocated IRQs for the
1da177e4
LT		 9342 * specified adapter.
9343 *
9344 * Return value:
9345 * none
9346 **/
2796ca5e 9347static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9348{
9349 struct pci_dev *pdev = ioa_cfg->pdev;
9350
05a6538a 9351 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9352 ioa_cfg->intr_flag == IPR_USE_MSIX) {
9353 int i;
9354 for (i = 0; i < ioa_cfg->nvectors; i++)
9355 free_irq(ioa_cfg->vectors_info[i].vec,
2796ca5e 9356 &ioa_cfg->hrrq[i]);
05a6538a 9357 } else
9358 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
9359
56d6aa33 9360 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 9361 pci_disable_msi(pdev);
56d6aa33 9362 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9363 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 9364 pci_disable_msix(pdev);
56d6aa33 9365 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9366 }
2796ca5e 9367}
05a6538a 9368
2796ca5e
BK		 9369/**
9370 * ipr_free_all_resources - Free all allocated resources for an adapter.
9371 * @ipr_cmd: ipr command struct
9372 *
9373 * This function frees all allocated resources for the
9374 * specified adapter.
9375 *
9376 * Return value:
9377 * none
9378 **/
9379static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9380{
9381 struct pci_dev *pdev = ioa_cfg->pdev;
05a6538a 9382
2796ca5e
BK		 9383 ENTER;
9384 ipr_free_irqs(ioa_cfg);
9385 if (ioa_cfg->reset_work_q)
9386 destroy_workqueue(ioa_cfg->reset_work_q);
1da177e4
LT		 9387 iounmap(ioa_cfg->hdw_dma_regs);
9388 pci_release_regions(pdev);
9389 ipr_free_mem(ioa_cfg);
9390 scsi_host_put(ioa_cfg->host);
9391 pci_disable_device(pdev);
9392 LEAVE;
9393}
9394
9395/**
9396 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9397 * @ioa_cfg: ioa config struct
9398 *
9399 * Return value:
9400 * 0 on success / -ENOMEM on allocation failure
9401 **/
6f039790 9402static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9403{
9404 struct ipr_cmnd *ipr_cmd;
9405 struct ipr_ioarcb *ioarcb;
9406 dma_addr_t dma_addr;
05a6538a 9407 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 9408
d73341bf 9409 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 9410 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 9411
9412 if (!ioa_cfg->ipr_cmd_pool)
9413 return -ENOMEM;
9414
89aad428
BK		 9415 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9416 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9417
9418 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9419 ipr_free_cmd_blks(ioa_cfg);
9420 return -ENOMEM;
9421 }
9422
05a6538a 9423 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9424 if (ioa_cfg->hrrq_num > 1) {
9425 if (i == 0) {
9426 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9427 ioa_cfg->hrrq[i].min_cmd_id = 0;
9428 ioa_cfg->hrrq[i].max_cmd_id =
9429 (entries_each_hrrq - 1);
9430 } else {
9431 entries_each_hrrq =
9432 IPR_NUM_BASE_CMD_BLKS/
9433 (ioa_cfg->hrrq_num - 1);
9434 ioa_cfg->hrrq[i].min_cmd_id =
9435 IPR_NUM_INTERNAL_CMD_BLKS +
9436 (i - 1) * entries_each_hrrq;
9437 ioa_cfg->hrrq[i].max_cmd_id =
9438 (IPR_NUM_INTERNAL_CMD_BLKS +
9439 i * entries_each_hrrq - 1);
9440 }
9441 } else {
9442 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9443 ioa_cfg->hrrq[i].min_cmd_id = 0;
9444 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9445 }
9446 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9447 }
9448
9449 BUG_ON(ioa_cfg->hrrq_num == 0);
9450
9451 i = IPR_NUM_CMD_BLKS -
9452 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9453 if (i > 0) {
9454 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9455 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9456 }
9457
1da177e4 9458 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 9459 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 9460
9461 if (!ipr_cmd) {
9462 ipr_free_cmd_blks(ioa_cfg);
9463 return -ENOMEM;
9464 }
9465
9466 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9467 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9468 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9469
9470 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9471 ipr_cmd->dma_addr = dma_addr;
9472 if (ioa_cfg->sis64)
9473 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9474 else
9475 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9476
1da177e4 9477 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9478 if (ioa_cfg->sis64) {
9479 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9480 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9481 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9482 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9483 } else {
9484 ioarcb->write_ioadl_addr =
9485 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9486 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9487 ioarcb->ioasa_host_pci_addr =
96d21f00 9488 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9489 }
1da177e4
LT		 9490 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9491 ipr_cmd->cmd_index = i;
9492 ipr_cmd->ioa_cfg = ioa_cfg;
9493 ipr_cmd->sense_buffer_dma = dma_addr +
9494 offsetof(struct ipr_cmnd, sense_buffer);
9495
05a6538a 9496 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9497 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9498 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9499 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9500 hrrq_id++;
1da177e4
LT		 9501 }
9502
9503 return 0;
9504}
9505
9506/**
9507 * ipr_alloc_mem - Allocate memory for an adapter
9508 * @ioa_cfg: ioa config struct
9509 *
9510 * Return value:
9511 * 0 on success / non-zero for error
9512 **/
6f039790 9513static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9514{
9515 struct pci_dev *pdev = ioa_cfg->pdev;
9516 int i, rc = -ENOMEM;
9517
9518 ENTER;
0bc42e35 9519 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9520 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9521
9522 if (!ioa_cfg->res_entries)
9523 goto out;
9524
3e7ebdfa 9525 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9526 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9527 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9528 }
1da177e4 9529
d73341bf
AB		 9530 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9531 sizeof(struct ipr_misc_cbs),
9532 &ioa_cfg->vpd_cbs_dma,
9533 GFP_KERNEL);
1da177e4
LT		 9534
9535 if (!ioa_cfg->vpd_cbs)
9536 goto out_free_res_entries;
9537
9538 if (ipr_alloc_cmd_blks(ioa_cfg))
9539 goto out_free_vpd_cbs;
9540
05a6538a 9541 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9542 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9543 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9544 &ioa_cfg->hrrq[i].host_rrq_dma,
9545 GFP_KERNEL);
05a6538a 9546
9547 if (!ioa_cfg->hrrq[i].host_rrq) {
9548 while (--i > 0)
d73341bf 9549 dma_free_coherent(&pdev->dev,
05a6538a 9550 sizeof(u32) * ioa_cfg->hrrq[i].size,
9551 ioa_cfg->hrrq[i].host_rrq,
9552 ioa_cfg->hrrq[i].host_rrq_dma);
9553 goto out_ipr_free_cmd_blocks;
9554 }
9555 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9556 }
1da177e4 9557
d73341bf
AB		 9558 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9559 ioa_cfg->cfg_table_size,
9560 &ioa_cfg->cfg_table_dma,
9561 GFP_KERNEL);
1da177e4 9562
3e7ebdfa 9563 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9564 goto out_free_host_rrq;
9565
9566 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9567 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9568 sizeof(struct ipr_hostrcb),
9569 &ioa_cfg->hostrcb_dma[i],
9570 GFP_KERNEL);
1da177e4
LT		 9571
9572 if (!ioa_cfg->hostrcb[i])
9573 goto out_free_hostrcb_dma;
9574
9575 ioa_cfg->hostrcb[i]->hostrcb_dma =
9576 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9577 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9578 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9579 }
9580
0bc42e35 9581 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9582 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9583
9584 if (!ioa_cfg->trace)
9585 goto out_free_hostrcb_dma;
9586
1da177e4
LT		 9587 rc = 0;
9588out:
9589 LEAVE;
9590 return rc;
9591
9592out_free_hostrcb_dma:
9593 while (i-- > 0) {
d73341bf
AB		 9594 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9595 ioa_cfg->hostrcb[i],
9596 ioa_cfg->hostrcb_dma[i]);
1da177e4 9597 }
d73341bf
AB		 9598 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9599 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9600out_free_host_rrq:
05a6538a 9601 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9602 dma_free_coherent(&pdev->dev,
9603 sizeof(u32) * ioa_cfg->hrrq[i].size,
9604 ioa_cfg->hrrq[i].host_rrq,
9605 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9606 }
1da177e4
LT		 9607out_ipr_free_cmd_blocks:
9608 ipr_free_cmd_blks(ioa_cfg);
9609out_free_vpd_cbs:
d73341bf
AB		 9610 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9611 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9612out_free_res_entries:
9613 kfree(ioa_cfg->res_entries);
9614 goto out;
9615}
9616
9617/**
9618 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9619 * @ioa_cfg: ioa config struct
9620 *
9621 * Return value:
9622 * none
9623 **/
6f039790 9624static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9625{
9626 int i;
9627
9628 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9629 ioa_cfg->bus_attr[i].bus = i;
9630 ioa_cfg->bus_attr[i].qas_enabled = 0;
9631 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9632 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9633 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9634 else
9635 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9636 }
9637}
9638
6270e593
BK		 9639/**
9640 * ipr_init_regs - Initialize IOA registers
9641 * @ioa_cfg: ioa config struct
9642 *
9643 * Return value:
9644 * none
9645 **/
9646static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9647{
9648 const struct ipr_interrupt_offsets *p;
9649 struct ipr_interrupts *t;
9650 void __iomem *base;
9651
9652 p = &ioa_cfg->chip_cfg->regs;
9653 t = &ioa_cfg->regs;
9654 base = ioa_cfg->hdw_dma_regs;
9655
9656 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9657 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9658 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9659 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9660 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9661 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9662 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9663 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9664 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9665 t->ioarrin_reg = base + p->ioarrin_reg;
9666 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9667 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9668 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9669 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9670 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9671 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9672
9673 if (ioa_cfg->sis64) {
9674 t->init_feedback_reg = base + p->init_feedback_reg;
9675 t->dump_addr_reg = base + p->dump_addr_reg;
9676 t->dump_data_reg = base + p->dump_data_reg;
9677 t->endian_swap_reg = base + p->endian_swap_reg;
9678 }
9679}
9680
1da177e4
LT		 9681/**
9682 * ipr_init_ioa_cfg - Initialize IOA config struct
9683 * @ioa_cfg: ioa config struct
9684 * @host: scsi host struct
9685 * @pdev: PCI dev struct
9686 *
9687 * Return value:
9688 * none
9689 **/
6f039790
GKH		 9690static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9691 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9692{
6270e593 9693 int i;
1da177e4
LT		 9694
9695 ioa_cfg->host = host;
9696 ioa_cfg->pdev = pdev;
9697 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9698 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9699 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9700 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9701 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9702 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9703 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9704 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9705
1da177e4
LT		 9706 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9707 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9708 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9709 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9710 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9711 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9712 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9713 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9714 ioa_cfg->sdt_state = INACTIVE;
9715
9716 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9717 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9718
3e7ebdfa
WB		 9719 if (ioa_cfg->sis64) {
9720 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9721 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9722 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9723 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9724 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9725 + ((sizeof(struct ipr_config_table_entry64)
9726 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9727 } else {
9728 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9729 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9730 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9731 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9732 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9733 + ((sizeof(struct ipr_config_table_entry)
9734 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9735 }
6270e593 9736
f688f96d 9737 host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9738 host->unique_id = host->host_no;
9739 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9740 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9741 pci_set_drvdata(pdev, ioa_cfg);
9742
6270e593
BK		 9743 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9744 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9745 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9746 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9747 if (i == 0)
9748 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9749 else
9750 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9751 }
1da177e4
LT		 9752}
9753
9754/**
1be7bd82 9755 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9756 * @dev_id: PCI device id struct
9757 *
9758 * Return value:
1be7bd82 9759 * ptr to chip information on success / NULL on failure
1da177e4 9760 **/
6f039790 9761static const struct ipr_chip_t *
1be7bd82 9762ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9763{
9764 int i;
9765
1da177e4
LT		 9766 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9767 if (ipr_chip[i].vendor == dev_id->vendor &&
9768 ipr_chip[i].device == dev_id->device)
1be7bd82 9769 return &ipr_chip[i];
1da177e4
LT		 9770 return NULL;
9771}
9772
6270e593
BK		 9773/**
9774 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9775 * during probe time
9776 * @ioa_cfg: ioa config struct
9777 *
9778 * Return value:
9779 * None
9780 **/
9781static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9782{
9783 struct pci_dev *pdev = ioa_cfg->pdev;
9784
9785 if (pci_channel_offline(pdev)) {
9786 wait_event_timeout(ioa_cfg->eeh_wait_q,
9787 !pci_channel_offline(pdev),
9788 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9789 pci_restore_state(pdev);
9790 }
9791}
9792
05a6538a 9793static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9794{
9795 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
60e76b77 9796 int i, vectors;
05a6538a 9797
9798 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9799 entries[i].entry = i;
9800
60e76b77
AG		 9801 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9802 entries, 1, ipr_number_of_msix);
9803 if (vectors < 0) {
6270e593 9804 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9805 return vectors;
05a6538a 9806 }
9807
60e76b77
AG		 9808 for (i = 0; i < vectors; i++)
9809 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9810 ioa_cfg->nvectors = vectors;
05a6538a 9811
60e76b77 9812 return 0;
05a6538a 9813}
9814
9815static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9816{
60e76b77 9817 int i, vectors;
05a6538a 9818
60e76b77
AG		 9819 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9820 if (vectors < 0) {
6270e593 9821 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9822 return vectors;
05a6538a 9823 }
9824
60e76b77
AG		 9825 for (i = 0; i < vectors; i++)
9826 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9827 ioa_cfg->nvectors = vectors;
05a6538a 9828
60e76b77 9829 return 0;
05a6538a 9830}
9831
9832static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9833{
9834 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9835
9836 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9837 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9838 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9839 ioa_cfg->vectors_info[vec_idx].
9840 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9841 }
9842}
9843
9844static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9845{
9846 int i, rc;
9847
9848 for (i = 1; i < ioa_cfg->nvectors; i++) {
9849 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9850 ipr_isr_mhrrq,
9851 0,
9852 ioa_cfg->vectors_info[i].desc,
9853 &ioa_cfg->hrrq[i]);
9854 if (rc) {
9855 while (--i >= 0)
9856 free_irq(ioa_cfg->vectors_info[i].vec,
9857 &ioa_cfg->hrrq[i]);
9858 return rc;
9859 }
9860 }
9861 return 0;
9862}
9863
95fecd90
WB		 9864/**
9865 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9866 * @pdev: PCI device struct
9867 *
9868 * Description: Simply set the msi_received flag to 1 indicating that
9869 * Message Signaled Interrupts are supported.
9870 *
9871 * Return value:
9872 * 0 on success / non-zero on failure
9873 **/
6f039790 9874static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9875{
9876 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9877 unsigned long lock_flags = 0;
9878 irqreturn_t rc = IRQ_HANDLED;
9879
05a6538a 9880 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9881 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9882
9883 ioa_cfg->msi_received = 1;
9884 wake_up(&ioa_cfg->msi_wait_q);
9885
9886 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9887 return rc;
9888}
9889
9890/**
9891 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9892 * @pdev: PCI device struct
9893 *
60e76b77 9894 * Description: The return value from pci_enable_msi_range() can not always be
95fecd90
WB		 9895 * trusted. This routine sets up and initiates a test interrupt to determine
9896 * if the interrupt is received via the ipr_test_intr() service routine.
9897 * If the tests fails, the driver will fall back to LSI.
9898 *
9899 * Return value:
9900 * 0 on success / non-zero on failure
9901 **/
6f039790 9902static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9903{
9904 int rc;
9905 volatile u32 int_reg;
9906 unsigned long lock_flags = 0;
9907
9908 ENTER;
9909
9910 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9911 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9912 ioa_cfg->msi_received = 0;
9913 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9914 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9915 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9916 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9917
f19799f4 9918 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9919 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9920 else
9921 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9922 if (rc) {
9923 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9924 return rc;
9925 } else if (ipr_debug)
9926 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9927
214777ba 9928 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9929 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9930 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9932 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9933
95fecd90
WB		 9934 if (!ioa_cfg->msi_received) {
9935 /* MSI test failed */
9936 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9937 rc = -EOPNOTSUPP;
9938 } else if (ipr_debug)
9939 dev_info(&pdev->dev, "MSI test succeeded.\n");
9940
9941 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9942
f19799f4 9943 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9944 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9945 else
9946 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9947
9948 LEAVE;
9949
9950 return rc;
9951}
9952
05a6538a 9953 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9954 * @pdev: PCI device struct
9955 * @dev_id: PCI device id struct
9956 *
9957 * Return value:
9958 * 0 on success / non-zero on failure
9959 **/
6f039790
GKH		 9960static int ipr_probe_ioa(struct pci_dev *pdev,
9961 const struct pci_device_id *dev_id)
1da177e4
LT		 9962{
9963 struct ipr_ioa_cfg *ioa_cfg;
9964 struct Scsi_Host *host;
9965 unsigned long ipr_regs_pci;
9966 void __iomem *ipr_regs;
a2a65a3e 9967 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9968 volatile u32 mask, uproc, interrupts;
feccada9 9969 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9970
9971 ENTER;
9972
1da177e4 9973 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9974 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9975
9976 if (!host) {
9977 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9978 rc = -ENOMEM;
6270e593 9979 goto out;
1da177e4
LT		 9980 }
9981
9982 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9983 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9984 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9985
1be7bd82 9986 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9987
1be7bd82 9988 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9989 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9990 dev_id->vendor, dev_id->device);
9991 goto out_scsi_host_put;
9992 }
9993
a32c055f
WB		 9994 /* set SIS 32 or SIS 64 */
9995 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9996 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 9997 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 9998 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 9999
5469cb5b
BK		 10000 if (ipr_transop_timeout)
10001 ioa_cfg->transop_timeout = ipr_transop_timeout;
10002 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10003 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10004 else
10005 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10006
44c10138 10007 ioa_cfg->revid = pdev->revision;
463fc696 10008
6270e593
BK		 10009 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10010
1da177e4
LT		 10011 ipr_regs_pci = pci_resource_start(pdev, 0);
10012
10013 rc = pci_request_regions(pdev, IPR_NAME);
10014 if (rc < 0) {
10015 dev_err(&pdev->dev,
10016 "Couldn't register memory range of registers\n");
10017 goto out_scsi_host_put;
10018 }
10019
6270e593
BK		 10020 rc = pci_enable_device(pdev);
10021
10022 if (rc || pci_channel_offline(pdev)) {
10023 if (pci_channel_offline(pdev)) {
10024 ipr_wait_for_pci_err_recovery(ioa_cfg);
10025 rc = pci_enable_device(pdev);
10026 }
10027
10028 if (rc) {
10029 dev_err(&pdev->dev, "Cannot enable adapter\n");
10030 ipr_wait_for_pci_err_recovery(ioa_cfg);
10031 goto out_release_regions;
10032 }
10033 }
10034
25729a7f 10035 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 10036
10037 if (!ipr_regs) {
10038 dev_err(&pdev->dev,
10039 "Couldn't map memory range of registers\n");
10040 rc = -ENOMEM;
6270e593 10041 goto out_disable;
1da177e4
LT		 10042 }
10043
10044 ioa_cfg->hdw_dma_regs = ipr_regs;
10045 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10046 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10047
6270e593 10048 ipr_init_regs(ioa_cfg);
1da177e4 10049
a32c055f 10050 if (ioa_cfg->sis64) {
869404cb 10051 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 10052 if (rc < 0) {
869404cb
AB		 10053 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10054 rc = dma_set_mask_and_coherent(&pdev->dev,
10055 DMA_BIT_MASK(32));
a32c055f 10056 }
a32c055f 10057 } else
869404cb 10058 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 10059
1da177e4 10060 if (rc < 0) {
869404cb 10061 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 10062 goto cleanup_nomem;
10063 }
10064
10065 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10066 ioa_cfg->chip_cfg->cache_line_size);
10067
10068 if (rc != PCIBIOS_SUCCESSFUL) {
10069 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 10070 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 10071 rc = -EIO;
10072 goto cleanup_nomem;
10073 }
10074
6270e593
BK		 10075 /* Issue MMIO read to ensure card is not in EEH */
10076 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10077 ipr_wait_for_pci_err_recovery(ioa_cfg);
10078
05a6538a 10079 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10080 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10081 IPR_MAX_MSIX_VECTORS);
10082 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10083 }
10084
10085 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 10086 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 10087 ioa_cfg->intr_flag = IPR_USE_MSIX;
10088 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 10089 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 10090 ioa_cfg->intr_flag = IPR_USE_MSI;
10091 else {
10092 ioa_cfg->intr_flag = IPR_USE_LSI;
10093 ioa_cfg->nvectors = 1;
10094 dev_info(&pdev->dev, "Cannot enable MSI.\n");
10095 }
10096
6270e593
BK		 10097 pci_set_master(pdev);
10098
10099 if (pci_channel_offline(pdev)) {
10100 ipr_wait_for_pci_err_recovery(ioa_cfg);
10101 pci_set_master(pdev);
10102 if (pci_channel_offline(pdev)) {
10103 rc = -EIO;
10104 goto out_msi_disable;
10105 }
10106 }
10107
05a6538a 10108 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
10109 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 10110 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 10111 if (rc == -EOPNOTSUPP) {
6270e593 10112 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 10113 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
10114 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
10115 pci_disable_msi(pdev);
10116 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
10117 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
10118 pci_disable_msix(pdev);
10119 }
10120
10121 ioa_cfg->intr_flag = IPR_USE_LSI;
10122 ioa_cfg->nvectors = 1;
10123 }
95fecd90
WB		 10124 else if (rc)
10125 goto out_msi_disable;
05a6538a 10126 else {
10127 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10128 dev_info(&pdev->dev,
10129 "Request for %d MSIs succeeded with starting IRQ: %d\n",
10130 ioa_cfg->nvectors, pdev->irq);
10131 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10132 dev_info(&pdev->dev,
10133 "Request for %d MSIXs succeeded.",
10134 ioa_cfg->nvectors);
10135 }
10136 }
10137
10138 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10139 (unsigned int)num_online_cpus(),
10140 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 10141
1da177e4 10142 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 10143 goto out_msi_disable;
1da177e4
LT		 10144
10145 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 10146 goto out_msi_disable;
1da177e4
LT		 10147
10148 rc = ipr_alloc_mem(ioa_cfg);
10149 if (rc < 0) {
10150 dev_err(&pdev->dev,
10151 "Couldn't allocate enough memory for device driver!\n");
f170c684 10152 goto out_msi_disable;
1da177e4
LT		 10153 }
10154
6270e593
BK		 10155 /* Save away PCI config space for use following IOA reset */
10156 rc = pci_save_state(pdev);
10157
10158 if (rc != PCIBIOS_SUCCESSFUL) {
10159 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10160 rc = -EIO;
10161 goto cleanup_nolog;
10162 }
10163
ce155cce 10164 /*
10165 * If HRRQ updated interrupt is not masked, or reset alert is set,
10166 * the card is in an unknown state and needs a hard reset
10167 */
214777ba
WB		 10168 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10169 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10170 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce 10171 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10172 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 10173 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 10174 ioa_cfg->needs_hard_reset = 1;
10175 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10176 ioa_cfg->ioa_unit_checked = 1;
ce155cce 10177
56d6aa33 10178 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10179 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 10180 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10181
05a6538a 10182 if (ioa_cfg->intr_flag == IPR_USE_MSI
10183 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
10184 name_msi_vectors(ioa_cfg);
10185 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
10186 0,
10187 ioa_cfg->vectors_info[0].desc,
10188 &ioa_cfg->hrrq[0]);
10189 if (!rc)
10190 rc = ipr_request_other_msi_irqs(ioa_cfg);
10191 } else {
10192 rc = request_irq(pdev->irq, ipr_isr,
10193 IRQF_SHARED,
10194 IPR_NAME, &ioa_cfg->hrrq[0]);
10195 }
1da177e4
LT		 10196 if (rc) {
10197 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10198 pdev->irq, rc);
10199 goto cleanup_nolog;
10200 }
10201
463fc696
BK		 10202 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10203 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10204 ioa_cfg->needs_warm_reset = 1;
10205 ioa_cfg->reset = ipr_reset_slot_reset;
2796ca5e
BK		 10206
10207 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10208 WQ_MEM_RECLAIM, host->host_no);
10209
10210 if (!ioa_cfg->reset_work_q) {
10211 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
10212 goto out_free_irq;
10213 }
463fc696
BK		 10214 } else
10215 ioa_cfg->reset = ipr_reset_start_bist;
10216
feccada9 10217 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10218 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 10219 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10220
10221 LEAVE;
10222out:
10223 return rc;
10224
2796ca5e
BK		 10225out_free_irq:
10226 ipr_free_irqs(ioa_cfg);
1da177e4
LT		 10227cleanup_nolog:
10228 ipr_free_mem(ioa_cfg);
95fecd90 10229out_msi_disable:
6270e593 10230 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 10231 if (ioa_cfg->intr_flag == IPR_USE_MSI)
10232 pci_disable_msi(pdev);
10233 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
10234 pci_disable_msix(pdev);
f170c684
JL		 10235cleanup_nomem:
10236 iounmap(ipr_regs);
6270e593
BK		 10237out_disable:
10238 pci_disable_device(pdev);
1da177e4
LT		 10239out_release_regions:
10240 pci_release_regions(pdev);
10241out_scsi_host_put:
10242 scsi_host_put(host);
1da177e4
LT		 10243 goto out;
10244}
10245
1da177e4
LT		 10246/**
10247 * ipr_initiate_ioa_bringdown - Bring down an adapter
10248 * @ioa_cfg: ioa config struct
10249 * @shutdown_type: shutdown type
10250 *
10251 * Description: This function will initiate bringing down the adapter.
10252 * This consists of issuing an IOA shutdown to the adapter
10253 * to flush the cache, and running BIST.
10254 * If the caller needs to wait on the completion of the reset,
10255 * the caller must sleep on the reset_wait_q.
10256 *
10257 * Return value:
10258 * none
10259 **/
10260static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10261 enum ipr_shutdown_type shutdown_type)
10262{
10263 ENTER;
10264 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10265 ioa_cfg->sdt_state = ABORT_DUMP;
10266 ioa_cfg->reset_retries = 0;
10267 ioa_cfg->in_ioa_bringdown = 1;
10268 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10269 LEAVE;
10270}
10271
10272/**
10273 * __ipr_remove - Remove a single adapter
10274 * @pdev: pci device struct
10275 *
10276 * Adapter hot plug remove entry point.
10277 *
10278 * Return value:
10279 * none
10280 **/
10281static void __ipr_remove(struct pci_dev *pdev)
10282{
10283 unsigned long host_lock_flags = 0;
10284 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 10285 int i;
feccada9 10286 unsigned long driver_lock_flags;
1da177e4
LT		 10287 ENTER;
10288
10289 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 10290 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10291 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10292 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10293 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10294 }
10295
bfae7820
BK		 10296 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10297 spin_lock(&ioa_cfg->hrrq[i]._lock);
10298 ioa_cfg->hrrq[i].removing_ioa = 1;
10299 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10300 }
10301 wmb();
1da177e4
LT		 10302 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10303
10304 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10305 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 10306 flush_work(&ioa_cfg->work_q);
2796ca5e
BK		 10307 if (ioa_cfg->reset_work_q)
10308 flush_workqueue(ioa_cfg->reset_work_q);
9077a944 10309 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 10310 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10311
feccada9 10312 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10313 list_del(&ioa_cfg->queue);
feccada9 10314 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10315
10316 if (ioa_cfg->sdt_state == ABORT_DUMP)
10317 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10318 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10319
10320 ipr_free_all_resources(ioa_cfg);
10321
10322 LEAVE;
10323}
10324
10325/**
10326 * ipr_remove - IOA hot plug remove entry point
10327 * @pdev: pci device struct
10328 *
10329 * Adapter hot plug remove entry point.
10330 *
10331 * Return value:
10332 * none
10333 **/
6f039790 10334static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 10335{
10336 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10337
10338 ENTER;
10339
ee959b00 10340 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10341 &ipr_trace_attr);
ee959b00 10342 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10343 &ipr_dump_attr);
10344 scsi_remove_host(ioa_cfg->host);
10345
10346 __ipr_remove(pdev);
10347
10348 LEAVE;
10349}
10350
10351/**
10352 * ipr_probe - Adapter hot plug add entry point
10353 *
10354 * Return value:
10355 * 0 on success / non-zero on failure
10356 **/
6f039790 10357static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 10358{
10359 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 10360 int rc, i;
1da177e4
LT		 10361
10362 rc = ipr_probe_ioa(pdev, dev_id);
10363
10364 if (rc)
10365 return rc;
10366
10367 ioa_cfg = pci_get_drvdata(pdev);
10368 rc = ipr_probe_ioa_part2(ioa_cfg);
10369
10370 if (rc) {
10371 __ipr_remove(pdev);
10372 return rc;
10373 }
10374
10375 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10376
10377 if (rc) {
10378 __ipr_remove(pdev);
10379 return rc;
10380 }
10381
ee959b00 10382 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10383 &ipr_trace_attr);
10384
10385 if (rc) {
10386 scsi_remove_host(ioa_cfg->host);
10387 __ipr_remove(pdev);
10388 return rc;
10389 }
10390
ee959b00 10391 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10392 &ipr_dump_attr);
10393
10394 if (rc) {
ee959b00 10395 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10396 &ipr_trace_attr);
10397 scsi_remove_host(ioa_cfg->host);
10398 __ipr_remove(pdev);
10399 return rc;
10400 }
10401
10402 scsi_scan_host(ioa_cfg->host);
b53d124a 10403 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10404
89f8b33c 10405 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10406 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
10407 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
10408 ioa_cfg->iopoll_weight, ipr_iopoll);
10409 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
10410 }
10411 }
10412
1da177e4
LT		 10413 schedule_work(&ioa_cfg->work_q);
10414 return 0;
10415}
10416
10417/**
10418 * ipr_shutdown - Shutdown handler.
d18c3db5 10419 * @pdev: pci device struct
1da177e4
LT		 10420 *
10421 * This function is invoked upon system shutdown/reboot. It will issue
10422 * an adapter shutdown to the adapter to flush the write cache.
10423 *
10424 * Return value:
10425 * none
10426 **/
d18c3db5 10427static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 10428{
d18c3db5 10429 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 10430 unsigned long lock_flags = 0;
4fdd7c7a 10431 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
b53d124a 10432 int i;
1da177e4
LT		 10433
10434 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 10435 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10436 ioa_cfg->iopoll_weight = 0;
10437 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10438 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10439 }
10440
203fa3fe 10441 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10442 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10443 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10444 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10445 }
10446
4fdd7c7a
BK		 10447 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10448 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10449
10450 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
1da177e4
LT		 10451 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10452 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4fdd7c7a 10453 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
2796ca5e 10454 ipr_free_irqs(ioa_cfg);
4fdd7c7a
BK		 10455 pci_disable_device(ioa_cfg->pdev);
10456 }
1da177e4
LT		 10457}
10458
6f039790 10459static struct pci_device_id ipr_pci_table[] = {
1da177e4 10460 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10461 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10462 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10463 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10464 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10465 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10466 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10467 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10468 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10469 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10470 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10471 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10472 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10473 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10474 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10475 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10476 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10477 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10478 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10479 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10480 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10481 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10482 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10483 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10484 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10485 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10486 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10487 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10488 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10489 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10490 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10491 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10492 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10493 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10494 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10495 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10496 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10497 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10498 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10499 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10500 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10501 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10502 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10503 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10504 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10505 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10506 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10507 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10508 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10509 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10510 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10511 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10512 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10513 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10514 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10515 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10516 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10517 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10518 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10519 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10520 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10521 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10522 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10523 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10524 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10525 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10526 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10527 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10528 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10529 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10530 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10531 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10532 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10533 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10534 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10535 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10536 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10537 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10538 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10539 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10540 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10541 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10542 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10543 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10544 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10545 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10546 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10547 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10548 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10549 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10550 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10551 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10552 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10553 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10554 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10555 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10556 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10557 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10558 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10559 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10560 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10561 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10562 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10563 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10564 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
1da177e4
LT		 10565 { }
10566};
10567MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10568
a55b2d21 10569static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10570 .error_detected = ipr_pci_error_detected,
6270e593 10571 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10572 .slot_reset = ipr_pci_slot_reset,
10573};
10574
1da177e4
LT		 10575static struct pci_driver ipr_driver = {
10576 .name = IPR_NAME,
10577 .id_table = ipr_pci_table,
10578 .probe = ipr_probe,
6f039790 10579 .remove = ipr_remove,
d18c3db5 10580 .shutdown = ipr_shutdown,
f8a88b19 10581 .err_handler = &ipr_err_handler,
1da177e4
LT		 10582};
10583
f72919ec
WB		 10584/**
10585 * ipr_halt_done - Shutdown prepare completion
10586 *
10587 * Return value:
10588 * none
10589 **/
10590static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10591{
05a6538a 10592 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10593}
10594
10595/**
10596 * ipr_halt - Issue shutdown prepare to all adapters
10597 *
10598 * Return value:
10599 * NOTIFY_OK on success / NOTIFY_DONE on failure
10600 **/
10601static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10602{
10603 struct ipr_cmnd *ipr_cmd;
10604 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10605 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10606
10607 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10608 return NOTIFY_DONE;
10609
feccada9 10610 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10611
10612 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10613 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4fdd7c7a
BK		 10614 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10615 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
f72919ec
WB		 10616 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10617 continue;
10618 }
10619
10620 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10621 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10622 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10623 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10624 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10625
10626 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10627 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10628 }
feccada9 10629 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10630
10631 return NOTIFY_OK;
10632}
10633
10634static struct notifier_block ipr_notifier = {
10635 ipr_halt, NULL, 0
10636};
10637
1da177e4
LT		 10638/**
10639 * ipr_init - Module entry point
10640 *
10641 * Return value:
10642 * 0 on success / negative value on failure
10643 **/
10644static int __init ipr_init(void)
10645{
10646 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10647 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10648
f72919ec 10649 register_reboot_notifier(&ipr_notifier);
dcbccbde 10650 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10651}
10652
10653/**
10654 * ipr_exit - Module unload
10655 *
10656 * Module unload entry point.
10657 *
10658 * Return value:
10659 * none
10660 **/
10661static void __exit ipr_exit(void)
10662{
f72919ec 10663 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10664 pci_unregister_driver(&ipr_driver);
10665}
10666
10667module_init(ipr_init);
10668module_exit(ipr_exit);
Linux kernel - Deliverables
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