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scsi: ipr: Remove redundant initialization
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / ipr.c
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1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
cb05cbb3 101static unsigned int ipr_number_of_msix = 16;
4fdd7c7a 102static unsigned int ipr_fast_reboot;
1da177e4
LT		 103static DEFINE_SPINLOCK(ipr_driver_lock);
104
105/* This table describes the differences between DMA controller chips */
106static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 107 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4 108 .mailbox = 0x0042C,
89aad428 109 .max_cmds = 100,
1da177e4 110 .cache_line_size = 0x20,
7dd21308 111 .clear_isr = 1,
b53d124a 112 .iopoll_weight = 0,
1da177e4
LT		 113 {
114 .set_interrupt_mask_reg = 0x0022C,
115 .clr_interrupt_mask_reg = 0x00230,
214777ba 116 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 117 .sense_interrupt_mask_reg = 0x0022C,
214777ba 118 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 119 .clr_interrupt_reg = 0x00228,
214777ba 120 .clr_interrupt_reg32 = 0x00228,
1da177e4 121 .sense_interrupt_reg = 0x00224,
214777ba 122 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 123 .ioarrin_reg = 0x00404,
124 .sense_uproc_interrupt_reg = 0x00214,
214777ba 125 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 126 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 127 .set_uproc_interrupt_reg32 = 0x00214,
128 .clr_uproc_interrupt_reg = 0x00218,
129 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 130 }
131 },
132 { /* Snipe and Scamp */
133 .mailbox = 0x0052C,
89aad428 134 .max_cmds = 100,
1da177e4 135 .cache_line_size = 0x20,
7dd21308 136 .clear_isr = 1,
b53d124a 137 .iopoll_weight = 0,
1da177e4
LT		 138 {
139 .set_interrupt_mask_reg = 0x00288,
140 .clr_interrupt_mask_reg = 0x0028C,
214777ba 141 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 142 .sense_interrupt_mask_reg = 0x00288,
214777ba 143 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 144 .clr_interrupt_reg = 0x00284,
214777ba 145 .clr_interrupt_reg32 = 0x00284,
1da177e4 146 .sense_interrupt_reg = 0x00280,
214777ba 147 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 148 .ioarrin_reg = 0x00504,
149 .sense_uproc_interrupt_reg = 0x00290,
214777ba 150 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 151 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 152 .set_uproc_interrupt_reg32 = 0x00290,
153 .clr_uproc_interrupt_reg = 0x00294,
154 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 155 }
156 },
a74c1639 157 { /* CRoC */
110def85 158 .mailbox = 0x00044,
89aad428 159 .max_cmds = 1000,
a74c1639 160 .cache_line_size = 0x20,
7dd21308 161 .clear_isr = 0,
b53d124a 162 .iopoll_weight = 64,
a74c1639
WB		 163 {
164 .set_interrupt_mask_reg = 0x00010,
165 .clr_interrupt_mask_reg = 0x00018,
214777ba 166 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 167 .sense_interrupt_mask_reg = 0x00010,
214777ba 168 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 169 .clr_interrupt_reg = 0x00008,
214777ba 170 .clr_interrupt_reg32 = 0x0000C,
a74c1639 171 .sense_interrupt_reg = 0x00000,
214777ba 172 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 173 .ioarrin_reg = 0x00070,
174 .sense_uproc_interrupt_reg = 0x00020,
214777ba 175 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 176 .set_uproc_interrupt_reg = 0x00020,
214777ba 177 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 178 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 179 .clr_uproc_interrupt_reg32 = 0x0002C,
180 .init_feedback_reg = 0x0005C,
dcbad00e 181 .dump_addr_reg = 0x00064,
8701f185
WB		 182 .dump_data_reg = 0x00068,
183 .endian_swap_reg = 0x00084
a74c1639
WB		 184 }
185 },
1da177e4
LT		 186};
187
188static const struct ipr_chip_t ipr_chip[] = {
a299ee62
CH		 189 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, true, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
198 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 199};
200
203fa3fe 201static int ipr_max_bus_speeds[] = {
1da177e4
LT		 202 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
203};
204
205MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
206MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
207module_param_named(max_speed, ipr_max_speed, uint, 0);
208MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
209module_param_named(log_level, ipr_log_level, uint, 0);
210MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
211module_param_named(testmode, ipr_testmode, int, 0);
212MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 213module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 214MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
215module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
216MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 217module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 218MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 219module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
220MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 221module_param_named(max_devs, ipr_max_devs, int, 0);
222MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
223 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 224module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
cb05cbb3 225MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:16)");
4fdd7c7a
BK		 226module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR);
227MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)");
1da177e4
LT		 228MODULE_LICENSE("GPL");
229MODULE_VERSION(IPR_DRIVER_VERSION);
230
1da177e4
LT		 231/* A constant array of IOASCs/URCs/Error Messages */
232static const
233struct ipr_error_table_t ipr_error_table[] = {
933916f3 234 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 235 "8155: An unknown error was received"},
236 {0x00330000, 0, 0,
237 "Soft underlength error"},
238 {0x005A0000, 0, 0,
239 "Command to be cancelled not found"},
240 {0x00808000, 0, 0,
241 "Qualified success"},
933916f3 242 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 243 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 244 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 245 "4101: Soft device bus fabric error"},
5aa3a333
WB		 246 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
247 "FFFC: Logical block guard error recovered by the device"},
248 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
249 "FFFC: Logical block reference tag error recovered by the device"},
250 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
251 "4171: Recovered scatter list tag / sequence number error"},
252 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
254 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
255 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
256 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
257 "FFFD: Recovered logical block reference tag error detected by the IOA"},
258 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
259 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 260 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 261 "FFF9: Device sector reassign successful"},
933916f3 262 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 263 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 264 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 265 "7001: IOA sector reassignment successful"},
933916f3 266 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 267 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 268 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 269 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 270 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 271 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 272 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 273 "FFF6: Device hardware error recovered by the IOA"},
933916f3 274 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 275 "FFF6: Device hardware error recovered by the device"},
933916f3 276 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 277 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 278 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 279 "FFFA: Undefined device response recovered by the IOA"},
933916f3 280 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 281 "FFF6: Device bus error, message or command phase"},
933916f3 282 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 283 "FFFE: Task Management Function failed"},
933916f3 284 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 285 "FFF6: Failure prediction threshold exceeded"},
933916f3 286 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 287 "8009: Impending cache battery pack failure"},
ed7bd661 288 {0x02040100, 0, 0,
289 "Logical Unit in process of becoming ready"},
290 {0x02040200, 0, 0,
291 "Initializing command required"},
1da177e4
LT		 292 {0x02040400, 0, 0,
293 "34FF: Disk device format in progress"},
ed7bd661 294 {0x02040C00, 0, 0,
295 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 296 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
297 "9070: IOA requested reset"},
1da177e4
LT		 298 {0x023F0000, 0, 0,
299 "Synchronization required"},
ed7bd661 300 {0x02408500, 0, 0,
301 "IOA microcode download required"},
302 {0x02408600, 0, 0,
303 "Device bus connection is prohibited by host"},
1da177e4
LT		 304 {0x024E0000, 0, 0,
305 "No ready, IOA shutdown"},
306 {0x025A0000, 0, 0,
307 "Not ready, IOA has been shutdown"},
933916f3 308 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 309 "3020: Storage subsystem configuration error"},
310 {0x03110B00, 0, 0,
311 "FFF5: Medium error, data unreadable, recommend reassign"},
312 {0x03110C00, 0, 0,
313 "7000: Medium error, data unreadable, do not reassign"},
933916f3 314 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 315 "FFF3: Disk media format bad"},
933916f3 316 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 317 "3002: Addressed device failed to respond to selection"},
933916f3 318 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 319 "3100: Device bus error"},
933916f3 320 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 321 "3109: IOA timed out a device command"},
322 {0x04088000, 0, 0,
323 "3120: SCSI bus is not operational"},
933916f3 324 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 325 "4100: Hard device bus fabric error"},
5aa3a333
WB		 326 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
327 "310C: Logical block guard error detected by the device"},
328 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
329 "310C: Logical block reference tag error detected by the device"},
330 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
331 "4170: Scatter list tag / sequence number error"},
332 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
333 "8150: Logical block CRC error on IOA to Host transfer"},
334 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
335 "4170: Logical block sequence number error on IOA to Host transfer"},
336 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
337 "310D: Logical block reference tag error detected by the IOA"},
338 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
339 "310D: Logical block guard error detected by the IOA"},
933916f3 340 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 341 "9000: IOA reserved area data check"},
933916f3 342 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 343 "9001: IOA reserved area invalid data pattern"},
933916f3 344 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 345 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 346 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
347 "Hardware Error, IOA metadata access error"},
933916f3 348 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 349 "102E: Out of alternate sectors for disk storage"},
933916f3 350 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 351 "FFF4: Data transfer underlength error"},
933916f3 352 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 353 "FFF4: Data transfer overlength error"},
933916f3 354 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 355 "3400: Logical unit failure"},
933916f3 356 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 357 "FFF4: Device microcode is corrupt"},
933916f3 358 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 359 "8150: PCI bus error"},
360 {0x04430000, 1, 0,
361 "Unsupported device bus message received"},
933916f3 362 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 363 "FFF4: Disk device problem"},
933916f3 364 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 365 "8150: Permanent IOA failure"},
933916f3 366 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 367 "3010: Disk device returned wrong response to IOA"},
933916f3 368 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 369 "8151: IOA microcode error"},
370 {0x04448500, 0, 0,
371 "Device bus status error"},
933916f3 372 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 373 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 374 {0x04448700, 0, 0,
375 "ATA device status error"},
1da177e4
LT		 376 {0x04490000, 0, 0,
377 "Message reject received from the device"},
933916f3 378 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 379 "8008: A permanent cache battery pack failure occurred"},
933916f3 380 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 381 "9090: Disk unit has been modified after the last known status"},
933916f3 382 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 383 "9081: IOA detected device error"},
933916f3 384 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 385 "9082: IOA detected device error"},
933916f3 386 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 387 "3110: Device bus error, message or command phase"},
933916f3 388 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 389 "3110: SAS Command / Task Management Function failed"},
933916f3 390 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 391 "9091: Incorrect hardware configuration change has been detected"},
933916f3 392 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 393 "9073: Invalid multi-adapter configuration"},
933916f3 394 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 395 "4010: Incorrect connection between cascaded expanders"},
933916f3 396 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 397 "4020: Connections exceed IOA design limits"},
933916f3 398 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 399 "4030: Incorrect multipath connection"},
933916f3 400 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 401 "4110: Unsupported enclosure function"},
ed7bd661 402 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
403 "4120: SAS cable VPD cannot be read"},
933916f3 404 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 405 "FFF4: Command to logical unit failed"},
406 {0x05240000, 1, 0,
407 "Illegal request, invalid request type or request packet"},
408 {0x05250000, 0, 0,
409 "Illegal request, invalid resource handle"},
b0df54bb
BK		 410 {0x05258000, 0, 0,
411 "Illegal request, commands not allowed to this device"},
412 {0x05258100, 0, 0,
413 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 414 {0x05258200, 0, 0,
415 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 416 {0x05260000, 0, 0,
417 "Illegal request, invalid field in parameter list"},
418 {0x05260100, 0, 0,
419 "Illegal request, parameter not supported"},
420 {0x05260200, 0, 0,
421 "Illegal request, parameter value invalid"},
422 {0x052C0000, 0, 0,
423 "Illegal request, command sequence error"},
b0df54bb
BK		 424 {0x052C8000, 1, 0,
425 "Illegal request, dual adapter support not enabled"},
ed7bd661 426 {0x052C8100, 1, 0,
427 "Illegal request, another cable connector was physically disabled"},
428 {0x054E8000, 1, 0,
429 "Illegal request, inconsistent group id/group count"},
933916f3 430 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 431 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 432 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 433 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 434 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
435 "4080: IOA exceeded maximum operating temperature"},
436 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
437 "4085: Service required"},
933916f3 438 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 439 "3140: Device bus not ready to ready transition"},
933916f3 440 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 441 "FFFB: SCSI bus was reset"},
442 {0x06290500, 0, 0,
443 "FFFE: SCSI bus transition to single ended"},
444 {0x06290600, 0, 0,
445 "FFFE: SCSI bus transition to LVD"},
933916f3 446 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 447 "FFFB: SCSI bus was reset by another initiator"},
933916f3 448 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 449 "3029: A device replacement has occurred"},
ed7bd661 450 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
451 "4102: Device bus fabric performance degradation"},
933916f3 452 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 453 "9051: IOA cache data exists for a missing or failed device"},
933916f3 454 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 455 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 456 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 457 "9025: Disk unit is not supported at its physical location"},
933916f3 458 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 459 "3020: IOA detected a SCSI bus configuration error"},
933916f3 460 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 461 "3150: SCSI bus configuration error"},
933916f3 462 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 463 "9074: Asymmetric advanced function disk configuration"},
933916f3 464 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 465 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 466 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 467 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 468 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 469 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 470 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 471 "9076: Configuration error, missing remote IOA"},
933916f3 472 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 473 "4050: Enclosure does not support a required multipath function"},
ed7bd661 474 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
475 "4121: Configuration error, required cable is missing"},
476 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
477 "4122: Cable is not plugged into the correct location on remote IOA"},
478 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
479 "4123: Configuration error, invalid cable vital product data"},
480 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
481 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 482 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
483 "4070: Logically bad block written on device"},
933916f3 484 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 485 "9041: Array protection temporarily suspended"},
933916f3 486 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 487 "9042: Corrupt array parity detected on specified device"},
933916f3 488 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 489 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 490 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 491 "9071: Link operational transition"},
933916f3 492 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 493 "9072: Link not operational transition"},
933916f3 494 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 495 "9032: Array exposed but still protected"},
7b3871fd 496 {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL,
e435340c 497 "70DD: Device forced failed by disrupt device command"},
933916f3 498 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 499 "4061: Multipath redundancy level got better"},
933916f3 500 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 501 "4060: Multipath redundancy level got worse"},
7b3871fd 502 {0x06808100, 0, IPR_DEBUG_LOG_LEVEL,
f8ee25d7 503 "9083: Device raw mode enabled"},
7b3871fd 504 {0x06808200, 0, IPR_DEBUG_LOG_LEVEL,
f8ee25d7 505 "9084: Device raw mode disabled"},
1da177e4
LT		 506 {0x07270000, 0, 0,
507 "Failure due to other device"},
933916f3 508 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 509 "9008: IOA does not support functions expected by devices"},
933916f3 510 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 511 "9010: Cache data associated with attached devices cannot be found"},
933916f3 512 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 513 "9011: Cache data belongs to devices other than those attached"},
933916f3 514 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 515 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 516 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 517 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 518 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 519 "9022: Exposed array is missing a required device"},
933916f3 520 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 521 "9023: Array member(s) not at required physical locations"},
933916f3 522 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 523 "9024: Array not functional due to present hardware configuration"},
933916f3 524 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 525 "9026: Array not functional due to present hardware configuration"},
933916f3 526 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 527 "9027: Array is missing a device and parity is out of sync"},
933916f3 528 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 529 "9028: Maximum number of arrays already exist"},
933916f3 530 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 531 "9050: Required cache data cannot be located for a disk unit"},
933916f3 532 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 533 "9052: Cache data exists for a device that has been modified"},
933916f3 534 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 535 "9054: IOA resources not available due to previous problems"},
933916f3 536 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 537 "9092: Disk unit requires initialization before use"},
933916f3 538 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 539 "9029: Incorrect hardware configuration change has been detected"},
933916f3 540 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 541 "9060: One or more disk pairs are missing from an array"},
933916f3 542 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 543 "9061: One or more disks are missing from an array"},
933916f3 544 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 545 "9062: One or more disks are missing from an array"},
933916f3 546 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 547 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 548 {0x07279A00, 0, 0,
549 "Data protect, other volume set problem"},
1da177e4
LT		 550 {0x0B260000, 0, 0,
551 "Aborted command, invalid descriptor"},
ed7bd661 552 {0x0B3F9000, 0, 0,
553 "Target operating conditions have changed, dual adapter takeover"},
554 {0x0B530200, 0, 0,
555 "Aborted command, medium removal prevented"},
1da177e4 556 {0x0B5A0000, 0, 0,
ed7bd661 557 "Command terminated by host"},
558 {0x0B5B8000, 0, 0,
559 "Aborted command, command terminated by host"}
1da177e4
LT		 560};
561
562static const struct ipr_ses_table_entry ipr_ses_table[] = {
563 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
564 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
565 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
566 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
567 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
568 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
569 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
570 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
571 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
572 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
573 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
574 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
575 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
576};
577
578/*
579 * Function Prototypes
580 */
581static int ipr_reset_alert(struct ipr_cmnd *);
582static void ipr_process_ccn(struct ipr_cmnd *);
583static void ipr_process_error(struct ipr_cmnd *);
584static void ipr_reset_ioa_job(struct ipr_cmnd *);
585static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
586 enum ipr_shutdown_type);
587
588#ifdef CONFIG_SCSI_IPR_TRACE
589/**
590 * ipr_trc_hook - Add a trace entry to the driver trace
591 * @ipr_cmd: ipr command struct
592 * @type: trace type
593 * @add_data: additional data
594 *
595 * Return value:
596 * none
597 **/
598static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
599 u8 type, u32 add_data)
600{
601 struct ipr_trace_entry *trace_entry;
602 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
bb7c5433 603 unsigned int trace_index;
1da177e4 604
bb7c5433
BK		 605 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK;
606 trace_entry = &ioa_cfg->trace[trace_index];
1da177e4
LT		 607 trace_entry->time = jiffies;
608 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
609 trace_entry->type = type;
a32c055f
WB		 610 if (ipr_cmd->ioa_cfg->sis64)
611 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
612 else
613 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 614 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 615 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
616 trace_entry->u.add_data = add_data;
56d6aa33 617 wmb();
1da177e4
LT		 618}
619#else
203fa3fe 620#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 621#endif
622
172cd6e1
BK		 623/**
624 * ipr_lock_and_done - Acquire lock and complete command
625 * @ipr_cmd: ipr command struct
626 *
627 * Return value:
628 * none
629 **/
630static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
631{
632 unsigned long lock_flags;
633 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
634
635 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
636 ipr_cmd->done(ipr_cmd);
637 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
638}
639
1da177e4
LT		 640/**
641 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
642 * @ipr_cmd: ipr command struct
643 *
644 * Return value:
645 * none
646 **/
647static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
648{
649 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 650 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
651 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 652 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 653 int hrrq_id;
1da177e4 654
05a6538a 655 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 656 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 657 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 658 ioarcb->data_transfer_length = 0;
1da177e4 659 ioarcb->read_data_transfer_length = 0;
a32c055f 660 ioarcb->ioadl_len = 0;
1da177e4 661 ioarcb->read_ioadl_len = 0;
a32c055f 662
96d21f00 663 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 664 ioarcb->u.sis64_addr_data.data_ioadl_addr =
665 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 666 ioasa64->u.gata.status = 0;
667 } else {
a32c055f
WB		 668 ioarcb->write_ioadl_addr =
669 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
670 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 671 ioasa->u.gata.status = 0;
a32c055f
WB		 672 }
673
96d21f00
WB		 674 ioasa->hdr.ioasc = 0;
675 ioasa->hdr.residual_data_len = 0;
1da177e4 676 ipr_cmd->scsi_cmd = NULL;
35a39691 677 ipr_cmd->qc = NULL;
1da177e4
LT		 678 ipr_cmd->sense_buffer[0] = 0;
679 ipr_cmd->dma_use_sg = 0;
680}
681
682/**
683 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
684 * @ipr_cmd: ipr command struct
685 *
686 * Return value:
687 * none
688 **/
172cd6e1
BK		 689static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
690 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 691{
692 ipr_reinit_ipr_cmnd(ipr_cmd);
693 ipr_cmd->u.scratch = 0;
694 ipr_cmd->sibling = NULL;
6cdb0817 695 ipr_cmd->eh_comp = NULL;
172cd6e1 696 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 697 init_timer(&ipr_cmd->timer);
698}
699
700/**
00bfef2c 701 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 702 * @ioa_cfg: ioa config struct
703 *
704 * Return value:
705 * pointer to ipr command struct
706 **/
707static
05a6538a 708struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 709{
05a6538a 710 struct ipr_cmnd *ipr_cmd = NULL;
711
712 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
713 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
714 struct ipr_cmnd, queue);
715 list_del(&ipr_cmd->queue);
716 }
1da177e4 717
1da177e4
LT		 718
719 return ipr_cmd;
720}
721
00bfef2c
BK		 722/**
723 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
724 * @ioa_cfg: ioa config struct
725 *
726 * Return value:
727 * pointer to ipr command struct
728 **/
729static
730struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
731{
05a6538a 732 struct ipr_cmnd *ipr_cmd =
733 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 734 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 735 return ipr_cmd;
736}
737
1da177e4
LT		 738/**
739 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
740 * @ioa_cfg: ioa config struct
741 * @clr_ints: interrupts to clear
742 *
743 * This function masks all interrupts on the adapter, then clears the
744 * interrupts specified in the mask
745 *
746 * Return value:
747 * none
748 **/
749static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
750 u32 clr_ints)
751{
752 volatile u32 int_reg;
56d6aa33 753 int i;
1da177e4
LT		 754
755 /* Stop new interrupts */
56d6aa33 756 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
757 spin_lock(&ioa_cfg->hrrq[i]._lock);
758 ioa_cfg->hrrq[i].allow_interrupts = 0;
759 spin_unlock(&ioa_cfg->hrrq[i]._lock);
760 }
761 wmb();
1da177e4
LT		 762
763 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 764 if (ioa_cfg->sis64)
765 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
766 else
767 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 768
769 /* Clear any pending interrupts */
214777ba
WB		 770 if (ioa_cfg->sis64)
771 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
772 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 773 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
774}
775
776/**
777 * ipr_save_pcix_cmd_reg - Save PCI-X command register
778 * @ioa_cfg: ioa config struct
779 *
780 * Return value:
781 * 0 on success / -EIO on failure
782 **/
783static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
784{
785 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
786
7dce0e1c
BK		 787 if (pcix_cmd_reg == 0)
788 return 0;
1da177e4
LT		 789
790 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
791 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
792 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
793 return -EIO;
794 }
795
796 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
797 return 0;
798}
799
800/**
801 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
802 * @ioa_cfg: ioa config struct
803 *
804 * Return value:
805 * 0 on success / -EIO on failure
806 **/
807static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
808{
809 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
810
811 if (pcix_cmd_reg) {
812 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
813 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
814 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
815 return -EIO;
816 }
1da177e4
LT		 817 }
818
819 return 0;
820}
821
35a39691
BK		 822/**
823 * ipr_sata_eh_done - done function for aborted SATA commands
824 * @ipr_cmd: ipr command struct
825 *
826 * This function is invoked for ops generated to SATA
827 * devices which are being aborted.
828 *
829 * Return value:
830 * none
831 **/
832static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
833{
35a39691
BK		 834 struct ata_queued_cmd *qc = ipr_cmd->qc;
835 struct ipr_sata_port *sata_port = qc->ap->private_data;
836
837 qc->err_mask |= AC_ERR_OTHER;
838 sata_port->ioasa.status |= ATA_BUSY;
35a39691 839 ata_qc_complete(qc);
66a0d59c
BK		 840 if (ipr_cmd->eh_comp)
841 complete(ipr_cmd->eh_comp);
842 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 843}
844
1da177e4
LT		 845/**
846 * ipr_scsi_eh_done - mid-layer done function for aborted ops
847 * @ipr_cmd: ipr command struct
848 *
849 * This function is invoked by the interrupt handler for
850 * ops generated by the SCSI mid-layer which are being aborted.
851 *
852 * Return value:
853 * none
854 **/
855static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
856{
1da177e4
LT		 857 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
858
859 scsi_cmd->result |= (DID_ERROR << 16);
860
63015bc9 861 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 862 scsi_cmd->scsi_done(scsi_cmd);
6cdb0817
BK		 863 if (ipr_cmd->eh_comp)
864 complete(ipr_cmd->eh_comp);
05a6538a 865 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 866}
867
868/**
869 * ipr_fail_all_ops - Fails all outstanding ops.
870 * @ioa_cfg: ioa config struct
871 *
872 * This function fails all outstanding ops.
873 *
874 * Return value:
875 * none
876 **/
877static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
878{
879 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 880 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 881
882 ENTER;
05a6538a 883 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 884 spin_lock(&hrrq->_lock);
05a6538a 885 list_for_each_entry_safe(ipr_cmd,
886 temp, &hrrq->hrrq_pending_q, queue) {
887 list_del(&ipr_cmd->queue);
1da177e4 888
05a6538a 889 ipr_cmd->s.ioasa.hdr.ioasc =
890 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
891 ipr_cmd->s.ioasa.hdr.ilid =
892 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 893
05a6538a 894 if (ipr_cmd->scsi_cmd)
895 ipr_cmd->done = ipr_scsi_eh_done;
896 else if (ipr_cmd->qc)
897 ipr_cmd->done = ipr_sata_eh_done;
1da177e4 898
05a6538a 899 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
900 IPR_IOASC_IOA_WAS_RESET);
901 del_timer(&ipr_cmd->timer);
902 ipr_cmd->done(ipr_cmd);
903 }
56d6aa33 904 spin_unlock(&hrrq->_lock);
1da177e4 905 }
1da177e4
LT		 906 LEAVE;
907}
908
a32c055f
WB		 909/**
910 * ipr_send_command - Send driver initiated requests.
911 * @ipr_cmd: ipr command struct
912 *
913 * This function sends a command to the adapter using the correct write call.
914 * In the case of sis64, calculate the ioarcb size required. Then or in the
915 * appropriate bits.
916 *
917 * Return value:
918 * none
919 **/
920static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
921{
922 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
923 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
924
925 if (ioa_cfg->sis64) {
926 /* The default size is 256 bytes */
927 send_dma_addr |= 0x1;
928
929 /* If the number of ioadls * size of ioadl > 128 bytes,
930 then use a 512 byte ioarcb */
931 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
932 send_dma_addr |= 0x4;
933 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
934 } else
935 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
936}
937
1da177e4
LT		 938/**
939 * ipr_do_req - Send driver initiated requests.
940 * @ipr_cmd: ipr command struct
941 * @done: done function
942 * @timeout_func: timeout function
943 * @timeout: timeout value
944 *
945 * This function sends the specified command to the adapter with the
946 * timeout given. The done function is invoked on command completion.
947 *
948 * Return value:
949 * none
950 **/
951static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
952 void (*done) (struct ipr_cmnd *),
953 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
954{
05a6538a 955 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 956
957 ipr_cmd->done = done;
958
959 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
960 ipr_cmd->timer.expires = jiffies + timeout;
961 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
962
963 add_timer(&ipr_cmd->timer);
964
965 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
966
a32c055f 967 ipr_send_command(ipr_cmd);
1da177e4
LT		 968}
969
970/**
971 * ipr_internal_cmd_done - Op done function for an internally generated op.
972 * @ipr_cmd: ipr command struct
973 *
974 * This function is the op done function for an internally generated,
975 * blocking op. It simply wakes the sleeping thread.
976 *
977 * Return value:
978 * none
979 **/
980static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
981{
982 if (ipr_cmd->sibling)
983 ipr_cmd->sibling = NULL;
984 else
985 complete(&ipr_cmd->completion);
986}
987
a32c055f
WB		 988/**
989 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
990 * @ipr_cmd: ipr command struct
991 * @dma_addr: dma address
992 * @len: transfer length
993 * @flags: ioadl flag value
994 *
995 * This function initializes an ioadl in the case where there is only a single
996 * descriptor.
997 *
998 * Return value:
999 * nothing
1000 **/
1001static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
1002 u32 len, int flags)
1003{
1004 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1005 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
1006
1007 ipr_cmd->dma_use_sg = 1;
1008
1009 if (ipr_cmd->ioa_cfg->sis64) {
1010 ioadl64->flags = cpu_to_be32(flags);
1011 ioadl64->data_len = cpu_to_be32(len);
1012 ioadl64->address = cpu_to_be64(dma_addr);
1013
1014 ipr_cmd->ioarcb.ioadl_len =
1015 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1016 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1017 } else {
1018 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1019 ioadl->address = cpu_to_be32(dma_addr);
1020
1021 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1022 ipr_cmd->ioarcb.read_ioadl_len =
1023 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1024 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1025 } else {
1026 ipr_cmd->ioarcb.ioadl_len =
1027 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1028 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1029 }
1030 }
1031}
1032
1da177e4
LT		 1033/**
1034 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1035 * @ipr_cmd: ipr command struct
1036 * @timeout_func: function to invoke if command times out
1037 * @timeout: timeout
1038 *
1039 * Return value:
1040 * none
1041 **/
1042static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1043 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1044 u32 timeout)
1045{
1046 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1047
1048 init_completion(&ipr_cmd->completion);
1049 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1050
1051 spin_unlock_irq(ioa_cfg->host->host_lock);
1052 wait_for_completion(&ipr_cmd->completion);
1053 spin_lock_irq(ioa_cfg->host->host_lock);
1054}
1055
05a6538a 1056static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1057{
3f1c0581
BK		 1058 unsigned int hrrq;
1059
05a6538a 1060 if (ioa_cfg->hrrq_num == 1)
3f1c0581
BK		 1061 hrrq = 0;
1062 else {
1063 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index);
1064 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1;
1065 }
1066 return hrrq;
05a6538a 1067}
1068
1da177e4
LT		 1069/**
1070 * ipr_send_hcam - Send an HCAM to the adapter.
1071 * @ioa_cfg: ioa config struct
1072 * @type: HCAM type
1073 * @hostrcb: hostrcb struct
1074 *
1075 * This function will send a Host Controlled Async command to the adapter.
1076 * If HCAMs are currently not allowed to be issued to the adapter, it will
1077 * place the hostrcb on the free queue.
1078 *
1079 * Return value:
1080 * none
1081 **/
1082static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1083 struct ipr_hostrcb *hostrcb)
1084{
1085 struct ipr_cmnd *ipr_cmd;
1086 struct ipr_ioarcb *ioarcb;
1087
56d6aa33 1088 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1089 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1090 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1091 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1092
1093 ipr_cmd->u.hostrcb = hostrcb;
1094 ioarcb = &ipr_cmd->ioarcb;
1095
1096 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1097 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1098 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1099 ioarcb->cmd_pkt.cdb[1] = type;
1100 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1101 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1102
a32c055f
WB		 1103 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1104 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1105
1106 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1107 ipr_cmd->done = ipr_process_ccn;
1108 else
1109 ipr_cmd->done = ipr_process_error;
1110
1111 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1112
a32c055f 1113 ipr_send_command(ipr_cmd);
1da177e4
LT		 1114 } else {
1115 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1116 }
1117}
1118
3e7ebdfa
WB		 1119/**
1120 * ipr_update_ata_class - Update the ata class in the resource entry
1121 * @res: resource entry struct
1122 * @proto: cfgte device bus protocol value
1123 *
1124 * Return value:
1125 * none
1126 **/
1127static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1128{
203fa3fe 1129 switch (proto) {
3e7ebdfa
WB		 1130 case IPR_PROTO_SATA:
1131 case IPR_PROTO_SAS_STP:
1132 res->ata_class = ATA_DEV_ATA;
1133 break;
1134 case IPR_PROTO_SATA_ATAPI:
1135 case IPR_PROTO_SAS_STP_ATAPI:
1136 res->ata_class = ATA_DEV_ATAPI;
1137 break;
1138 default:
1139 res->ata_class = ATA_DEV_UNKNOWN;
1140 break;
1141 };
1142}
1143
1da177e4
LT		 1144/**
1145 * ipr_init_res_entry - Initialize a resource entry struct.
1146 * @res: resource entry struct
3e7ebdfa 1147 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1148 *
1149 * Return value:
1150 * none
1151 **/
3e7ebdfa
WB		 1152static void ipr_init_res_entry(struct ipr_resource_entry *res,
1153 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1154{
3e7ebdfa
WB		 1155 int found = 0;
1156 unsigned int proto;
1157 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1158 struct ipr_resource_entry *gscsi_res = NULL;
1159
ee0a90fa 1160 res->needs_sync_complete = 0;
1da177e4
LT		 1161 res->in_erp = 0;
1162 res->add_to_ml = 0;
1163 res->del_from_ml = 0;
1164 res->resetting_device = 0;
0b1f8d44 1165 res->reset_occurred = 0;
1da177e4 1166 res->sdev = NULL;
35a39691 1167 res->sata_port = NULL;
3e7ebdfa
WB		 1168
1169 if (ioa_cfg->sis64) {
1170 proto = cfgtew->u.cfgte64->proto;
359d96e7
BK		 1171 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1172 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
3e7ebdfa 1173 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1174 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1175
1176 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1177 sizeof(res->res_path));
1178
1179 res->bus = 0;
0cb992ed
WB		 1180 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1181 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1182 res->lun = scsilun_to_int(&res->dev_lun);
1183
1184 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1185 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1186 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1187 found = 1;
1188 res->target = gscsi_res->target;
1189 break;
1190 }
1191 }
1192 if (!found) {
1193 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1194 ioa_cfg->max_devs_supported);
1195 set_bit(res->target, ioa_cfg->target_ids);
1196 }
3e7ebdfa
WB		 1197 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1198 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1199 res->target = 0;
1200 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1201 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1202 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1203 ioa_cfg->max_devs_supported);
1204 set_bit(res->target, ioa_cfg->array_ids);
1205 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1206 res->bus = IPR_VSET_VIRTUAL_BUS;
1207 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1208 ioa_cfg->max_devs_supported);
1209 set_bit(res->target, ioa_cfg->vset_ids);
1210 } else {
1211 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1212 ioa_cfg->max_devs_supported);
1213 set_bit(res->target, ioa_cfg->target_ids);
1214 }
1215 } else {
1216 proto = cfgtew->u.cfgte->proto;
1217 res->qmodel = IPR_QUEUEING_MODEL(res);
1218 res->flags = cfgtew->u.cfgte->flags;
1219 if (res->flags & IPR_IS_IOA_RESOURCE)
1220 res->type = IPR_RES_TYPE_IOAFP;
1221 else
1222 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1223
1224 res->bus = cfgtew->u.cfgte->res_addr.bus;
1225 res->target = cfgtew->u.cfgte->res_addr.target;
1226 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1227 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1228 }
1229
1230 ipr_update_ata_class(res, proto);
1231}
1232
1233/**
1234 * ipr_is_same_device - Determine if two devices are the same.
1235 * @res: resource entry struct
1236 * @cfgtew: config table entry wrapper struct
1237 *
1238 * Return value:
1239 * 1 if the devices are the same / 0 otherwise
1240 **/
1241static int ipr_is_same_device(struct ipr_resource_entry *res,
1242 struct ipr_config_table_entry_wrapper *cfgtew)
1243{
1244 if (res->ioa_cfg->sis64) {
1245 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1246 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1247 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1248 sizeof(cfgtew->u.cfgte64->lun))) {
1249 return 1;
1250 }
1251 } else {
1252 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1253 res->target == cfgtew->u.cfgte->res_addr.target &&
1254 res->lun == cfgtew->u.cfgte->res_addr.lun)
1255 return 1;
1256 }
1257
1258 return 0;
1259}
1260
1261/**
b3b3b407 1262 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1263 * @res_path: resource path
1264 * @buf: buffer
b3b3b407 1265 * @len: length of buffer provided
3e7ebdfa
WB		 1266 *
1267 * Return value:
1268 * pointer to buffer
1269 **/
b3b3b407 1270static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1271{
1272 int i;
5adcbeb3 1273 char *p = buffer;
3e7ebdfa 1274
46d74563 1275 *p = '\0';
5adcbeb3
WB		 1276 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1277 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1278 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1279
1280 return buffer;
1281}
1282
b3b3b407
BK		 1283/**
1284 * ipr_format_res_path - Format the resource path for printing.
1285 * @ioa_cfg: ioa config struct
1286 * @res_path: resource path
1287 * @buf: buffer
1288 * @len: length of buffer provided
1289 *
1290 * Return value:
1291 * pointer to buffer
1292 **/
1293static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1294 u8 *res_path, char *buffer, int len)
1295{
1296 char *p = buffer;
1297
1298 *p = '\0';
1299 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1300 __ipr_format_res_path(res_path, p, len - (buffer - p));
1301 return buffer;
1302}
1303
3e7ebdfa
WB		 1304/**
1305 * ipr_update_res_entry - Update the resource entry.
1306 * @res: resource entry struct
1307 * @cfgtew: config table entry wrapper struct
1308 *
1309 * Return value:
1310 * none
1311 **/
1312static void ipr_update_res_entry(struct ipr_resource_entry *res,
1313 struct ipr_config_table_entry_wrapper *cfgtew)
1314{
1315 char buffer[IPR_MAX_RES_PATH_LENGTH];
1316 unsigned int proto;
1317 int new_path = 0;
1318
1319 if (res->ioa_cfg->sis64) {
359d96e7
BK		 1320 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags);
1321 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags);
75576bb9 1322 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1323
1324 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1325 sizeof(struct ipr_std_inq_data));
1326
1327 res->qmodel = IPR_QUEUEING_MODEL64(res);
1328 proto = cfgtew->u.cfgte64->proto;
1329 res->res_handle = cfgtew->u.cfgte64->res_handle;
1330 res->dev_id = cfgtew->u.cfgte64->dev_id;
1331
1332 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1333 sizeof(res->dev_lun.scsi_lun));
1334
1335 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1336 sizeof(res->res_path))) {
1337 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1338 sizeof(res->res_path));
1339 new_path = 1;
1340 }
1341
1342 if (res->sdev && new_path)
1343 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1344 ipr_format_res_path(res->ioa_cfg,
1345 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1346 } else {
1347 res->flags = cfgtew->u.cfgte->flags;
1348 if (res->flags & IPR_IS_IOA_RESOURCE)
1349 res->type = IPR_RES_TYPE_IOAFP;
1350 else
1351 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1352
1353 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1354 sizeof(struct ipr_std_inq_data));
1355
1356 res->qmodel = IPR_QUEUEING_MODEL(res);
1357 proto = cfgtew->u.cfgte->proto;
1358 res->res_handle = cfgtew->u.cfgte->res_handle;
1359 }
1360
1361 ipr_update_ata_class(res, proto);
1362}
1363
1364/**
1365 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1366 * for the resource.
1367 * @res: resource entry struct
1368 * @cfgtew: config table entry wrapper struct
1369 *
1370 * Return value:
1371 * none
1372 **/
1373static void ipr_clear_res_target(struct ipr_resource_entry *res)
1374{
1375 struct ipr_resource_entry *gscsi_res = NULL;
1376 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1377
1378 if (!ioa_cfg->sis64)
1379 return;
1380
1381 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1382 clear_bit(res->target, ioa_cfg->array_ids);
1383 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1384 clear_bit(res->target, ioa_cfg->vset_ids);
1385 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1386 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1387 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1388 return;
1389 clear_bit(res->target, ioa_cfg->target_ids);
1390
1391 } else if (res->bus == 0)
1392 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1393}
1394
1395/**
1396 * ipr_handle_config_change - Handle a config change from the adapter
1397 * @ioa_cfg: ioa config struct
1398 * @hostrcb: hostrcb
1399 *
1400 * Return value:
1401 * none
1402 **/
1403static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1404 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1405{
1406 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1407 struct ipr_config_table_entry_wrapper cfgtew;
1408 __be32 cc_res_handle;
1409
1da177e4
LT		 1410 u32 is_ndn = 1;
1411
3e7ebdfa
WB		 1412 if (ioa_cfg->sis64) {
1413 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1414 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1415 } else {
1416 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1417 cc_res_handle = cfgtew.u.cfgte->res_handle;
1418 }
1da177e4
LT		 1419
1420 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1421 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1422 is_ndn = 0;
1423 break;
1424 }
1425 }
1426
1427 if (is_ndn) {
1428 if (list_empty(&ioa_cfg->free_res_q)) {
1429 ipr_send_hcam(ioa_cfg,
1430 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1431 hostrcb);
1432 return;
1433 }
1434
1435 res = list_entry(ioa_cfg->free_res_q.next,
1436 struct ipr_resource_entry, queue);
1437
1438 list_del(&res->queue);
3e7ebdfa 1439 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1440 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1441 }
1442
3e7ebdfa 1443 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1444
1445 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1446 if (res->sdev) {
1da177e4 1447 res->del_from_ml = 1;
3e7ebdfa 1448 res->res_handle = IPR_INVALID_RES_HANDLE;
f688f96d 1449 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1450 } else {
1451 ipr_clear_res_target(res);
1da177e4 1452 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1453 }
5767a1c4 1454 } else if (!res->sdev || res->del_from_ml) {
1da177e4 1455 res->add_to_ml = 1;
f688f96d 1456 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 1457 }
1458
1459 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1460}
1461
1462/**
1463 * ipr_process_ccn - Op done function for a CCN.
1464 * @ipr_cmd: ipr command struct
1465 *
1466 * This function is the op done function for a configuration
1467 * change notification host controlled async from the adapter.
1468 *
1469 * Return value:
1470 * none
1471 **/
1472static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1473{
1474 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1475 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1476 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4 1477
afc3f83c 1478 list_del_init(&hostrcb->queue);
05a6538a 1479 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1480
1481 if (ioasc) {
4fdd7c7a
BK		 1482 if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
1483 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST)
1da177e4
LT		 1484 dev_err(&ioa_cfg->pdev->dev,
1485 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1486
1487 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1488 } else {
1489 ipr_handle_config_change(ioa_cfg, hostrcb);
1490 }
1491}
1492
8cf093e2
BK		 1493/**
1494 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1495 * @i: index into buffer
1496 * @buf: string to modify
1497 *
1498 * This function will strip all trailing whitespace, pad the end
1499 * of the string with a single space, and NULL terminate the string.
1500 *
1501 * Return value:
1502 * new length of string
1503 **/
1504static int strip_and_pad_whitespace(int i, char *buf)
1505{
1506 while (i && buf[i] == ' ')
1507 i--;
1508 buf[i+1] = ' ';
1509 buf[i+2] = '\0';
1510 return i + 2;
1511}
1512
1513/**
1514 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1515 * @prefix: string to print at start of printk
1516 * @hostrcb: hostrcb pointer
1517 * @vpd: vendor/product id/sn struct
1518 *
1519 * Return value:
1520 * none
1521 **/
1522static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1523 struct ipr_vpd *vpd)
1524{
1525 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1526 int i = 0;
1527
1528 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1529 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1530
1531 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1532 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1533
1534 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1535 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1536
1537 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1538}
1539
1da177e4
LT		 1540/**
1541 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1542 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1543 *
1544 * Return value:
1545 * none
1546 **/
cfc32139 1547static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1548{
1549 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1550 + IPR_SERIAL_NUM_LEN];
1551
cfc32139
BK		 1552 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1553 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1554 IPR_PROD_ID_LEN);
1555 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1556 ipr_err("Vendor/Product ID: %s\n", buffer);
1557
cfc32139 1558 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1559 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1560 ipr_err(" Serial Number: %s\n", buffer);
1561}
1562
8cf093e2
BK		 1563/**
1564 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1565 * @prefix: string to print at start of printk
1566 * @hostrcb: hostrcb pointer
1567 * @vpd: vendor/product id/sn/wwn struct
1568 *
1569 * Return value:
1570 * none
1571 **/
1572static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1573 struct ipr_ext_vpd *vpd)
1574{
1575 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1576 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1577 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1578}
1579
ee0f05b8
BK		 1580/**
1581 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1582 * @vpd: vendor/product id/sn/wwn struct
1583 *
1584 * Return value:
1585 * none
1586 **/
1587static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1588{
1589 ipr_log_vpd(&vpd->vpd);
1590 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1591 be32_to_cpu(vpd->wwid[1]));
1592}
1593
1594/**
1595 * ipr_log_enhanced_cache_error - Log a cache error.
1596 * @ioa_cfg: ioa config struct
1597 * @hostrcb: hostrcb struct
1598 *
1599 * Return value:
1600 * none
1601 **/
1602static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1603 struct ipr_hostrcb *hostrcb)
1604{
4565e370
WB		 1605 struct ipr_hostrcb_type_12_error *error;
1606
1607 if (ioa_cfg->sis64)
1608 error = &hostrcb->hcam.u.error64.u.type_12_error;
1609 else
1610 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1611
1612 ipr_err("-----Current Configuration-----\n");
1613 ipr_err("Cache Directory Card Information:\n");
1614 ipr_log_ext_vpd(&error->ioa_vpd);
1615 ipr_err("Adapter Card Information:\n");
1616 ipr_log_ext_vpd(&error->cfc_vpd);
1617
1618 ipr_err("-----Expected Configuration-----\n");
1619 ipr_err("Cache Directory Card Information:\n");
1620 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1621 ipr_err("Adapter Card Information:\n");
1622 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1623
1624 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1625 be32_to_cpu(error->ioa_data[0]),
1626 be32_to_cpu(error->ioa_data[1]),
1627 be32_to_cpu(error->ioa_data[2]));
1628}
1629
1da177e4
LT		 1630/**
1631 * ipr_log_cache_error - Log a cache error.
1632 * @ioa_cfg: ioa config struct
1633 * @hostrcb: hostrcb struct
1634 *
1635 * Return value:
1636 * none
1637 **/
1638static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1639 struct ipr_hostrcb *hostrcb)
1640{
1641 struct ipr_hostrcb_type_02_error *error =
1642 &hostrcb->hcam.u.error.u.type_02_error;
1643
1644 ipr_err("-----Current Configuration-----\n");
1645 ipr_err("Cache Directory Card Information:\n");
cfc32139 1646 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1647 ipr_err("Adapter Card Information:\n");
cfc32139 1648 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1649
1650 ipr_err("-----Expected Configuration-----\n");
1651 ipr_err("Cache Directory Card Information:\n");
cfc32139 1652 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1653 ipr_err("Adapter Card Information:\n");
cfc32139 1654 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1655
1656 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1657 be32_to_cpu(error->ioa_data[0]),
1658 be32_to_cpu(error->ioa_data[1]),
1659 be32_to_cpu(error->ioa_data[2]));
1660}
1661
ee0f05b8
BK		 1662/**
1663 * ipr_log_enhanced_config_error - Log a configuration error.
1664 * @ioa_cfg: ioa config struct
1665 * @hostrcb: hostrcb struct
1666 *
1667 * Return value:
1668 * none
1669 **/
1670static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1671 struct ipr_hostrcb *hostrcb)
1672{
1673 int errors_logged, i;
1674 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1675 struct ipr_hostrcb_type_13_error *error;
1676
1677 error = &hostrcb->hcam.u.error.u.type_13_error;
1678 errors_logged = be32_to_cpu(error->errors_logged);
1679
1680 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1681 be32_to_cpu(error->errors_detected), errors_logged);
1682
1683 dev_entry = error->dev;
1684
1685 for (i = 0; i < errors_logged; i++, dev_entry++) {
1686 ipr_err_separator;
1687
1688 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1689 ipr_log_ext_vpd(&dev_entry->vpd);
1690
1691 ipr_err("-----New Device Information-----\n");
1692 ipr_log_ext_vpd(&dev_entry->new_vpd);
1693
1694 ipr_err("Cache Directory Card Information:\n");
1695 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1696
1697 ipr_err("Adapter Card Information:\n");
1698 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1699 }
1700}
1701
4565e370
WB		 1702/**
1703 * ipr_log_sis64_config_error - Log a device error.
1704 * @ioa_cfg: ioa config struct
1705 * @hostrcb: hostrcb struct
1706 *
1707 * Return value:
1708 * none
1709 **/
1710static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1711 struct ipr_hostrcb *hostrcb)
1712{
1713 int errors_logged, i;
1714 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1715 struct ipr_hostrcb_type_23_error *error;
1716 char buffer[IPR_MAX_RES_PATH_LENGTH];
1717
1718 error = &hostrcb->hcam.u.error64.u.type_23_error;
1719 errors_logged = be32_to_cpu(error->errors_logged);
1720
1721 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1722 be32_to_cpu(error->errors_detected), errors_logged);
1723
1724 dev_entry = error->dev;
1725
1726 for (i = 0; i < errors_logged; i++, dev_entry++) {
1727 ipr_err_separator;
1728
1729 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1730 __ipr_format_res_path(dev_entry->res_path,
1731 buffer, sizeof(buffer)));
4565e370
WB		 1732 ipr_log_ext_vpd(&dev_entry->vpd);
1733
1734 ipr_err("-----New Device Information-----\n");
1735 ipr_log_ext_vpd(&dev_entry->new_vpd);
1736
1737 ipr_err("Cache Directory Card Information:\n");
1738 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1739
1740 ipr_err("Adapter Card Information:\n");
1741 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1742 }
1743}
1744
1da177e4
LT		 1745/**
1746 * ipr_log_config_error - Log a configuration error.
1747 * @ioa_cfg: ioa config struct
1748 * @hostrcb: hostrcb struct
1749 *
1750 * Return value:
1751 * none
1752 **/
1753static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1754 struct ipr_hostrcb *hostrcb)
1755{
1756 int errors_logged, i;
1757 struct ipr_hostrcb_device_data_entry *dev_entry;
1758 struct ipr_hostrcb_type_03_error *error;
1759
1760 error = &hostrcb->hcam.u.error.u.type_03_error;
1761 errors_logged = be32_to_cpu(error->errors_logged);
1762
1763 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1764 be32_to_cpu(error->errors_detected), errors_logged);
1765
cfc32139 1766 dev_entry = error->dev;
1da177e4
LT		 1767
1768 for (i = 0; i < errors_logged; i++, dev_entry++) {
1769 ipr_err_separator;
1770
fa15b1f6 1771 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1772 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1773
1774 ipr_err("-----New Device Information-----\n");
cfc32139 1775 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1776
1777 ipr_err("Cache Directory Card Information:\n");
cfc32139 1778 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1779
1780 ipr_err("Adapter Card Information:\n");
cfc32139 1781 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1782
1783 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1784 be32_to_cpu(dev_entry->ioa_data[0]),
1785 be32_to_cpu(dev_entry->ioa_data[1]),
1786 be32_to_cpu(dev_entry->ioa_data[2]),
1787 be32_to_cpu(dev_entry->ioa_data[3]),
1788 be32_to_cpu(dev_entry->ioa_data[4]));
1789 }
1790}
1791
ee0f05b8
BK		 1792/**
1793 * ipr_log_enhanced_array_error - Log an array configuration error.
1794 * @ioa_cfg: ioa config struct
1795 * @hostrcb: hostrcb struct
1796 *
1797 * Return value:
1798 * none
1799 **/
1800static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1801 struct ipr_hostrcb *hostrcb)
1802{
1803 int i, num_entries;
1804 struct ipr_hostrcb_type_14_error *error;
1805 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1806 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1807
1808 error = &hostrcb->hcam.u.error.u.type_14_error;
1809
1810 ipr_err_separator;
1811
1812 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1813 error->protection_level,
1814 ioa_cfg->host->host_no,
1815 error->last_func_vset_res_addr.bus,
1816 error->last_func_vset_res_addr.target,
1817 error->last_func_vset_res_addr.lun);
1818
1819 ipr_err_separator;
1820
1821 array_entry = error->array_member;
1822 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1823 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1824
1825 for (i = 0; i < num_entries; i++, array_entry++) {
1826 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1827 continue;
1828
1829 if (be32_to_cpu(error->exposed_mode_adn) == i)
1830 ipr_err("Exposed Array Member %d:\n", i);
1831 else
1832 ipr_err("Array Member %d:\n", i);
1833
1834 ipr_log_ext_vpd(&array_entry->vpd);
1835 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1836 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1837 "Expected Location");
1838
1839 ipr_err_separator;
1840 }
1841}
1842
1da177e4
LT		 1843/**
1844 * ipr_log_array_error - Log an array configuration error.
1845 * @ioa_cfg: ioa config struct
1846 * @hostrcb: hostrcb struct
1847 *
1848 * Return value:
1849 * none
1850 **/
1851static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1852 struct ipr_hostrcb *hostrcb)
1853{
1854 int i;
1855 struct ipr_hostrcb_type_04_error *error;
1856 struct ipr_hostrcb_array_data_entry *array_entry;
1857 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1858
1859 error = &hostrcb->hcam.u.error.u.type_04_error;
1860
1861 ipr_err_separator;
1862
1863 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1864 error->protection_level,
1865 ioa_cfg->host->host_no,
1866 error->last_func_vset_res_addr.bus,
1867 error->last_func_vset_res_addr.target,
1868 error->last_func_vset_res_addr.lun);
1869
1870 ipr_err_separator;
1871
1872 array_entry = error->array_member;
1873
1874 for (i = 0; i < 18; i++) {
cfc32139 1875 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1876 continue;
1877
fa15b1f6 1878 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1879 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1880 else
1da177e4 1881 ipr_err("Array Member %d:\n", i);
1da177e4 1882
cfc32139 1883 ipr_log_vpd(&array_entry->vpd);
1da177e4 1884
fa15b1f6
BK		 1885 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1886 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1887 "Expected Location");
1da177e4
LT		 1888
1889 ipr_err_separator;
1890
1891 if (i == 9)
1892 array_entry = error->array_member2;
1893 else
1894 array_entry++;
1895 }
1896}
1897
1898/**
b0df54bb 1899 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1900 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1901 * @data: IOA error data
1902 * @len: data length
1da177e4
LT		 1903 *
1904 * Return value:
1905 * none
1906 **/
359d96e7 1907static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len)
1da177e4
LT		 1908{
1909 int i;
1da177e4 1910
b0df54bb 1911 if (len == 0)
1da177e4
LT		 1912 return;
1913
ac719aba
BK		 1914 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1915 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1916
b0df54bb 1917 for (i = 0; i < len / 4; i += 4) {
1da177e4 1918 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1919 be32_to_cpu(data[i]),
1920 be32_to_cpu(data[i+1]),
1921 be32_to_cpu(data[i+2]),
1922 be32_to_cpu(data[i+3]));
1da177e4
LT		 1923 }
1924}
1925
ee0f05b8
BK		 1926/**
1927 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1928 * @ioa_cfg: ioa config struct
1929 * @hostrcb: hostrcb struct
1930 *
1931 * Return value:
1932 * none
1933 **/
1934static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1935 struct ipr_hostrcb *hostrcb)
1936{
1937 struct ipr_hostrcb_type_17_error *error;
1938
4565e370
WB		 1939 if (ioa_cfg->sis64)
1940 error = &hostrcb->hcam.u.error64.u.type_17_error;
1941 else
1942 error = &hostrcb->hcam.u.error.u.type_17_error;
1943
ee0f05b8 1944 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1945 strim(error->failure_reason);
ee0f05b8 1946
8cf093e2
BK		 1947 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1948 be32_to_cpu(hostrcb->hcam.u.error.prc));
1949 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1950 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1951 be32_to_cpu(hostrcb->hcam.length) -
1952 (offsetof(struct ipr_hostrcb_error, u) +
1953 offsetof(struct ipr_hostrcb_type_17_error, data)));
1954}
1955
b0df54bb
BK		 1956/**
1957 * ipr_log_dual_ioa_error - Log a dual adapter error.
1958 * @ioa_cfg: ioa config struct
1959 * @hostrcb: hostrcb struct
1960 *
1961 * Return value:
1962 * none
1963 **/
1964static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1965 struct ipr_hostrcb *hostrcb)
1966{
1967 struct ipr_hostrcb_type_07_error *error;
1968
1969 error = &hostrcb->hcam.u.error.u.type_07_error;
1970 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1971 strim(error->failure_reason);
b0df54bb 1972
8cf093e2
BK		 1973 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1974 be32_to_cpu(hostrcb->hcam.u.error.prc));
1975 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1976 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1977 be32_to_cpu(hostrcb->hcam.length) -
1978 (offsetof(struct ipr_hostrcb_error, u) +
1979 offsetof(struct ipr_hostrcb_type_07_error, data)));
1980}
1981
49dc6a18
BK		 1982static const struct {
1983 u8 active;
1984 char *desc;
1985} path_active_desc[] = {
1986 { IPR_PATH_NO_INFO, "Path" },
1987 { IPR_PATH_ACTIVE, "Active path" },
1988 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1989};
1990
1991static const struct {
1992 u8 state;
1993 char *desc;
1994} path_state_desc[] = {
1995 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1996 { IPR_PATH_HEALTHY, "is healthy" },
1997 { IPR_PATH_DEGRADED, "is degraded" },
1998 { IPR_PATH_FAILED, "is failed" }
1999};
2000
2001/**
2002 * ipr_log_fabric_path - Log a fabric path error
2003 * @hostrcb: hostrcb struct
2004 * @fabric: fabric descriptor
2005 *
2006 * Return value:
2007 * none
2008 **/
2009static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
2010 struct ipr_hostrcb_fabric_desc *fabric)
2011{
2012 int i, j;
2013 u8 path_state = fabric->path_state;
2014 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2015 u8 state = path_state & IPR_PATH_STATE_MASK;
2016
2017 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2018 if (path_active_desc[i].active != active)
2019 continue;
2020
2021 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2022 if (path_state_desc[j].state != state)
2023 continue;
2024
2025 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2026 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2027 path_active_desc[i].desc, path_state_desc[j].desc,
2028 fabric->ioa_port);
2029 } else if (fabric->cascaded_expander == 0xff) {
2030 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2031 path_active_desc[i].desc, path_state_desc[j].desc,
2032 fabric->ioa_port, fabric->phy);
2033 } else if (fabric->phy == 0xff) {
2034 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2035 path_active_desc[i].desc, path_state_desc[j].desc,
2036 fabric->ioa_port, fabric->cascaded_expander);
2037 } else {
2038 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2039 path_active_desc[i].desc, path_state_desc[j].desc,
2040 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2041 }
2042 return;
2043 }
2044 }
2045
2046 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2047 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2048}
2049
4565e370
WB		 2050/**
2051 * ipr_log64_fabric_path - Log a fabric path error
2052 * @hostrcb: hostrcb struct
2053 * @fabric: fabric descriptor
2054 *
2055 * Return value:
2056 * none
2057 **/
2058static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2059 struct ipr_hostrcb64_fabric_desc *fabric)
2060{
2061 int i, j;
2062 u8 path_state = fabric->path_state;
2063 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2064 u8 state = path_state & IPR_PATH_STATE_MASK;
2065 char buffer[IPR_MAX_RES_PATH_LENGTH];
2066
2067 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2068 if (path_active_desc[i].active != active)
2069 continue;
2070
2071 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2072 if (path_state_desc[j].state != state)
2073 continue;
2074
2075 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2076 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2077 ipr_format_res_path(hostrcb->ioa_cfg,
2078 fabric->res_path,
2079 buffer, sizeof(buffer)));
4565e370
WB		 2080 return;
2081 }
2082 }
2083
2084 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2085 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2086 buffer, sizeof(buffer)));
4565e370
WB		 2087}
2088
49dc6a18
BK		 2089static const struct {
2090 u8 type;
2091 char *desc;
2092} path_type_desc[] = {
2093 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2094 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2095 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2096 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2097};
2098
2099static const struct {
2100 u8 status;
2101 char *desc;
2102} path_status_desc[] = {
2103 { IPR_PATH_CFG_NO_PROB, "Functional" },
2104 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2105 { IPR_PATH_CFG_FAILED, "Failed" },
2106 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2107 { IPR_PATH_NOT_DETECTED, "Missing" },
2108 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2109};
2110
2111static const char *link_rate[] = {
2112 "unknown",
2113 "disabled",
2114 "phy reset problem",
2115 "spinup hold",
2116 "port selector",
2117 "unknown",
2118 "unknown",
2119 "unknown",
2120 "1.5Gbps",
2121 "3.0Gbps",
2122 "unknown",
2123 "unknown",
2124 "unknown",
2125 "unknown",
2126 "unknown",
2127 "unknown"
2128};
2129
2130/**
2131 * ipr_log_path_elem - Log a fabric path element.
2132 * @hostrcb: hostrcb struct
2133 * @cfg: fabric path element struct
2134 *
2135 * Return value:
2136 * none
2137 **/
2138static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2139 struct ipr_hostrcb_config_element *cfg)
2140{
2141 int i, j;
2142 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2143 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2144
2145 if (type == IPR_PATH_CFG_NOT_EXIST)
2146 return;
2147
2148 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2149 if (path_type_desc[i].type != type)
2150 continue;
2151
2152 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2153 if (path_status_desc[j].status != status)
2154 continue;
2155
2156 if (type == IPR_PATH_CFG_IOA_PORT) {
2157 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2158 path_status_desc[j].desc, path_type_desc[i].desc,
2159 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2160 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2161 } else {
2162 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2163 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2164 path_status_desc[j].desc, path_type_desc[i].desc,
2165 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2166 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2167 } else if (cfg->cascaded_expander == 0xff) {
2168 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2169 "WWN=%08X%08X\n", path_status_desc[j].desc,
2170 path_type_desc[i].desc, cfg->phy,
2171 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2172 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2173 } else if (cfg->phy == 0xff) {
2174 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2175 "WWN=%08X%08X\n", path_status_desc[j].desc,
2176 path_type_desc[i].desc, cfg->cascaded_expander,
2177 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2178 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2179 } else {
2180 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2181 "WWN=%08X%08X\n", path_status_desc[j].desc,
2182 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2183 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2184 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2185 }
2186 }
2187 return;
2188 }
2189 }
2190
2191 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2192 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2193 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2194 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2195}
2196
4565e370
WB		 2197/**
2198 * ipr_log64_path_elem - Log a fabric path element.
2199 * @hostrcb: hostrcb struct
2200 * @cfg: fabric path element struct
2201 *
2202 * Return value:
2203 * none
2204 **/
2205static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2206 struct ipr_hostrcb64_config_element *cfg)
2207{
2208 int i, j;
2209 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2210 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2211 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2212 char buffer[IPR_MAX_RES_PATH_LENGTH];
2213
2214 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2215 return;
2216
2217 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2218 if (path_type_desc[i].type != type)
2219 continue;
2220
2221 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2222 if (path_status_desc[j].status != status)
2223 continue;
2224
2225 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2226 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2227 ipr_format_res_path(hostrcb->ioa_cfg,
2228 cfg->res_path, buffer, sizeof(buffer)),
2229 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2230 be32_to_cpu(cfg->wwid[0]),
2231 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2232 return;
2233 }
2234 }
2235 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2236 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2237 ipr_format_res_path(hostrcb->ioa_cfg,
2238 cfg->res_path, buffer, sizeof(buffer)),
2239 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2240 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2241}
2242
49dc6a18
BK		 2243/**
2244 * ipr_log_fabric_error - Log a fabric error.
2245 * @ioa_cfg: ioa config struct
2246 * @hostrcb: hostrcb struct
2247 *
2248 * Return value:
2249 * none
2250 **/
2251static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2252 struct ipr_hostrcb *hostrcb)
2253{
2254 struct ipr_hostrcb_type_20_error *error;
2255 struct ipr_hostrcb_fabric_desc *fabric;
2256 struct ipr_hostrcb_config_element *cfg;
2257 int i, add_len;
2258
2259 error = &hostrcb->hcam.u.error.u.type_20_error;
2260 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2261 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2262
2263 add_len = be32_to_cpu(hostrcb->hcam.length) -
2264 (offsetof(struct ipr_hostrcb_error, u) +
2265 offsetof(struct ipr_hostrcb_type_20_error, desc));
2266
2267 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2268 ipr_log_fabric_path(hostrcb, fabric);
2269 for_each_fabric_cfg(fabric, cfg)
2270 ipr_log_path_elem(hostrcb, cfg);
2271
2272 add_len -= be16_to_cpu(fabric->length);
2273 fabric = (struct ipr_hostrcb_fabric_desc *)
2274 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2275 }
2276
359d96e7 2277 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
49dc6a18
BK		 2278}
2279
4565e370
WB		 2280/**
2281 * ipr_log_sis64_array_error - Log a sis64 array error.
2282 * @ioa_cfg: ioa config struct
2283 * @hostrcb: hostrcb struct
2284 *
2285 * Return value:
2286 * none
2287 **/
2288static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2289 struct ipr_hostrcb *hostrcb)
2290{
2291 int i, num_entries;
2292 struct ipr_hostrcb_type_24_error *error;
2293 struct ipr_hostrcb64_array_data_entry *array_entry;
2294 char buffer[IPR_MAX_RES_PATH_LENGTH];
2295 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2296
2297 error = &hostrcb->hcam.u.error64.u.type_24_error;
2298
2299 ipr_err_separator;
2300
2301 ipr_err("RAID %s Array Configuration: %s\n",
2302 error->protection_level,
b3b3b407
BK		 2303 ipr_format_res_path(ioa_cfg, error->last_res_path,
2304 buffer, sizeof(buffer)));
4565e370
WB		 2305
2306 ipr_err_separator;
2307
2308 array_entry = error->array_member;
7262026f
WB		 2309 num_entries = min_t(u32, error->num_entries,
2310 ARRAY_SIZE(error->array_member));
4565e370
WB		 2311
2312 for (i = 0; i < num_entries; i++, array_entry++) {
2313
2314 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2315 continue;
2316
2317 if (error->exposed_mode_adn == i)
2318 ipr_err("Exposed Array Member %d:\n", i);
2319 else
2320 ipr_err("Array Member %d:\n", i);
2321
2322 ipr_err("Array Member %d:\n", i);
2323 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2324 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2325 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2326 buffer, sizeof(buffer)));
7262026f 2327 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2328 ipr_format_res_path(ioa_cfg,
2329 array_entry->expected_res_path,
2330 buffer, sizeof(buffer)));
4565e370
WB		 2331
2332 ipr_err_separator;
2333 }
2334}
2335
2336/**
2337 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2338 * @ioa_cfg: ioa config struct
2339 * @hostrcb: hostrcb struct
2340 *
2341 * Return value:
2342 * none
2343 **/
2344static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2345 struct ipr_hostrcb *hostrcb)
2346{
2347 struct ipr_hostrcb_type_30_error *error;
2348 struct ipr_hostrcb64_fabric_desc *fabric;
2349 struct ipr_hostrcb64_config_element *cfg;
2350 int i, add_len;
2351
2352 error = &hostrcb->hcam.u.error64.u.type_30_error;
2353
2354 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2355 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2356
2357 add_len = be32_to_cpu(hostrcb->hcam.length) -
2358 (offsetof(struct ipr_hostrcb64_error, u) +
2359 offsetof(struct ipr_hostrcb_type_30_error, desc));
2360
2361 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2362 ipr_log64_fabric_path(hostrcb, fabric);
2363 for_each_fabric_cfg(fabric, cfg)
2364 ipr_log64_path_elem(hostrcb, cfg);
2365
2366 add_len -= be16_to_cpu(fabric->length);
2367 fabric = (struct ipr_hostrcb64_fabric_desc *)
2368 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2369 }
2370
359d96e7 2371 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len);
4565e370
WB		 2372}
2373
b0df54bb
BK		 2374/**
2375 * ipr_log_generic_error - Log an adapter error.
2376 * @ioa_cfg: ioa config struct
2377 * @hostrcb: hostrcb struct
2378 *
2379 * Return value:
2380 * none
2381 **/
2382static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2383 struct ipr_hostrcb *hostrcb)
2384{
ac719aba 2385 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2386 be32_to_cpu(hostrcb->hcam.length));
2387}
2388
169b9ec8
WX		 2389/**
2390 * ipr_log_sis64_device_error - Log a cache error.
2391 * @ioa_cfg: ioa config struct
2392 * @hostrcb: hostrcb struct
2393 *
2394 * Return value:
2395 * none
2396 **/
2397static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2398 struct ipr_hostrcb *hostrcb)
2399{
2400 struct ipr_hostrcb_type_21_error *error;
2401 char buffer[IPR_MAX_RES_PATH_LENGTH];
2402
2403 error = &hostrcb->hcam.u.error64.u.type_21_error;
2404
2405 ipr_err("-----Failing Device Information-----\n");
2406 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2407 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2408 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2409 ipr_err("Device Resource Path: %s\n",
2410 __ipr_format_res_path(error->res_path,
2411 buffer, sizeof(buffer)));
2412 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2413 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2414 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2415 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2416 ipr_err("SCSI Sense Data:\n");
2417 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2418 ipr_err("SCSI Command Descriptor Block: \n");
2419 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2420
2421 ipr_err("Additional IOA Data:\n");
2422 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2423}
2424
1da177e4
LT		 2425/**
2426 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2427 * @ioasc: IOASC
2428 *
2429 * This function will return the index of into the ipr_error_table
2430 * for the specified IOASC. If the IOASC is not in the table,
2431 * 0 will be returned, which points to the entry used for unknown errors.
2432 *
2433 * Return value:
2434 * index into the ipr_error_table
2435 **/
2436static u32 ipr_get_error(u32 ioasc)
2437{
2438 int i;
2439
2440 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2441 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2442 return i;
2443
2444 return 0;
2445}
2446
2447/**
2448 * ipr_handle_log_data - Log an adapter error.
2449 * @ioa_cfg: ioa config struct
2450 * @hostrcb: hostrcb struct
2451 *
2452 * This function logs an adapter error to the system.
2453 *
2454 * Return value:
2455 * none
2456 **/
2457static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2458 struct ipr_hostrcb *hostrcb)
2459{
2460 u32 ioasc;
2461 int error_index;
3185ea63 2462 struct ipr_hostrcb_type_21_error *error;
1da177e4
LT		 2463
2464 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2465 return;
2466
2467 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2468 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2469
4565e370
WB		 2470 if (ioa_cfg->sis64)
2471 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2472 else
2473 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2474
4565e370
WB		 2475 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2476 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2477 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2478 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2479 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2480 }
2481
2482 error_index = ipr_get_error(ioasc);
2483
2484 if (!ipr_error_table[error_index].log_hcam)
2485 return;
2486
3185ea63 2487 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2488 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2489 error = &hostrcb->hcam.u.error64.u.type_21_error;
2490
2491 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2492 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2493 return;
2494 }
2495
49dc6a18 2496 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2497
2498 /* Set indication we have logged an error */
2499 ioa_cfg->errors_logged++;
2500
933916f3 2501 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2502 return;
cf852037
BK		 2503 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2504 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2505
2506 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2507 case IPR_HOST_RCB_OVERLAY_ID_2:
2508 ipr_log_cache_error(ioa_cfg, hostrcb);
2509 break;
2510 case IPR_HOST_RCB_OVERLAY_ID_3:
2511 ipr_log_config_error(ioa_cfg, hostrcb);
2512 break;
2513 case IPR_HOST_RCB_OVERLAY_ID_4:
2514 case IPR_HOST_RCB_OVERLAY_ID_6:
2515 ipr_log_array_error(ioa_cfg, hostrcb);
2516 break;
b0df54bb
BK		 2517 case IPR_HOST_RCB_OVERLAY_ID_7:
2518 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2519 break;
ee0f05b8
BK		 2520 case IPR_HOST_RCB_OVERLAY_ID_12:
2521 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2522 break;
2523 case IPR_HOST_RCB_OVERLAY_ID_13:
2524 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2525 break;
2526 case IPR_HOST_RCB_OVERLAY_ID_14:
2527 case IPR_HOST_RCB_OVERLAY_ID_16:
2528 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2529 break;
2530 case IPR_HOST_RCB_OVERLAY_ID_17:
2531 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2532 break;
49dc6a18
BK		 2533 case IPR_HOST_RCB_OVERLAY_ID_20:
2534 ipr_log_fabric_error(ioa_cfg, hostrcb);
2535 break;
169b9ec8
WX		 2536 case IPR_HOST_RCB_OVERLAY_ID_21:
2537 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2538 break;
4565e370
WB		 2539 case IPR_HOST_RCB_OVERLAY_ID_23:
2540 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2541 break;
2542 case IPR_HOST_RCB_OVERLAY_ID_24:
2543 case IPR_HOST_RCB_OVERLAY_ID_26:
2544 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2545 break;
2546 case IPR_HOST_RCB_OVERLAY_ID_30:
2547 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2548 break;
cf852037 2549 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2550 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2551 default:
a9cfca96 2552 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2553 break;
2554 }
2555}
2556
afc3f83c
BK		 2557static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa)
2558{
2559 struct ipr_hostrcb *hostrcb;
2560
2561 hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q,
2562 struct ipr_hostrcb, queue);
2563
2564 if (unlikely(!hostrcb)) {
2565 dev_info(&ioa->pdev->dev, "Reclaiming async error buffers.");
2566 hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q,
2567 struct ipr_hostrcb, queue);
2568 }
2569
2570 list_del_init(&hostrcb->queue);
2571 return hostrcb;
2572}
2573
1da177e4
LT		 2574/**
2575 * ipr_process_error - Op done function for an adapter error log.
2576 * @ipr_cmd: ipr command struct
2577 *
2578 * This function is the op done function for an error log host
2579 * controlled async from the adapter. It will log the error and
2580 * send the HCAM back to the adapter.
2581 *
2582 * Return value:
2583 * none
2584 **/
2585static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2586{
2587 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2588 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2589 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2590 u32 fd_ioasc;
2591
2592 if (ioa_cfg->sis64)
2593 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2594 else
2595 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2596
afc3f83c 2597 list_del_init(&hostrcb->queue);
05a6538a 2598 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2599
2600 if (!ioasc) {
2601 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2602 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2603 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4fdd7c7a
BK		 2604 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET &&
2605 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) {
1da177e4
LT		 2606 dev_err(&ioa_cfg->pdev->dev,
2607 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2608 }
2609
afc3f83c 2610 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q);
8a4236a2 2611 schedule_work(&ioa_cfg->work_q);
afc3f83c 2612 hostrcb = ipr_get_free_hostrcb(ioa_cfg);
afc3f83c 2613
1da177e4
LT		 2614 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2615}
2616
2617/**
2618 * ipr_timeout - An internally generated op has timed out.
2619 * @ipr_cmd: ipr command struct
2620 *
2621 * This function blocks host requests and initiates an
2622 * adapter reset.
2623 *
2624 * Return value:
2625 * none
2626 **/
2627static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2628{
2629 unsigned long lock_flags = 0;
2630 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2631
2632 ENTER;
2633 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2634
2635 ioa_cfg->errors_logged++;
2636 dev_err(&ioa_cfg->pdev->dev,
2637 "Adapter being reset due to command timeout.\n");
2638
2639 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2640 ioa_cfg->sdt_state = GET_DUMP;
2641
2642 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2643 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2644
2645 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2646 LEAVE;
2647}
2648
2649/**
2650 * ipr_oper_timeout - Adapter timed out transitioning to operational
2651 * @ipr_cmd: ipr command struct
2652 *
2653 * This function blocks host requests and initiates an
2654 * adapter reset.
2655 *
2656 * Return value:
2657 * none
2658 **/
2659static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2660{
2661 unsigned long lock_flags = 0;
2662 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2663
2664 ENTER;
2665 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2666
2667 ioa_cfg->errors_logged++;
2668 dev_err(&ioa_cfg->pdev->dev,
2669 "Adapter timed out transitioning to operational.\n");
2670
2671 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2672 ioa_cfg->sdt_state = GET_DUMP;
2673
2674 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2675 if (ipr_fastfail)
2676 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2677 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2678 }
2679
2680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2681 LEAVE;
2682}
2683
1da177e4
LT		 2684/**
2685 * ipr_find_ses_entry - Find matching SES in SES table
2686 * @res: resource entry struct of SES
2687 *
2688 * Return value:
2689 * pointer to SES table entry / NULL on failure
2690 **/
2691static const struct ipr_ses_table_entry *
2692ipr_find_ses_entry(struct ipr_resource_entry *res)
2693{
2694 int i, j, matches;
3e7ebdfa 2695 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2696 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2697
2698 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2699 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2700 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2701 vpids = &res->std_inq_data.vpids;
2702 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2703 matches++;
2704 else
2705 break;
2706 } else
2707 matches++;
2708 }
2709
2710 if (matches == IPR_PROD_ID_LEN)
2711 return ste;
2712 }
2713
2714 return NULL;
2715}
2716
2717/**
2718 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2719 * @ioa_cfg: ioa config struct
2720 * @bus: SCSI bus
2721 * @bus_width: bus width
2722 *
2723 * Return value:
2724 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2725 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2726 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2727 * max 160MHz = max 320MB/sec).
2728 **/
2729static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2730{
2731 struct ipr_resource_entry *res;
2732 const struct ipr_ses_table_entry *ste;
2733 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2734
2735 /* Loop through each config table entry in the config table buffer */
2736 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2737 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2738 continue;
2739
3e7ebdfa 2740 if (bus != res->bus)
1da177e4
LT		 2741 continue;
2742
2743 if (!(ste = ipr_find_ses_entry(res)))
2744 continue;
2745
2746 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2747 }
2748
2749 return max_xfer_rate;
2750}
2751
2752/**
2753 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2754 * @ioa_cfg: ioa config struct
2755 * @max_delay: max delay in micro-seconds to wait
2756 *
2757 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2758 *
2759 * Return value:
2760 * 0 on success / other on failure
2761 **/
2762static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2763{
2764 volatile u32 pcii_reg;
2765 int delay = 1;
2766
2767 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2768 while (delay < max_delay) {
2769 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2770
2771 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2772 return 0;
2773
2774 /* udelay cannot be used if delay is more than a few milliseconds */
2775 if ((delay / 1000) > MAX_UDELAY_MS)
2776 mdelay(delay / 1000);
2777 else
2778 udelay(delay);
2779
2780 delay += delay;
2781 }
2782 return -EIO;
2783}
2784
dcbad00e
WB		 2785/**
2786 * ipr_get_sis64_dump_data_section - Dump IOA memory
2787 * @ioa_cfg: ioa config struct
2788 * @start_addr: adapter address to dump
2789 * @dest: destination kernel buffer
2790 * @length_in_words: length to dump in 4 byte words
2791 *
2792 * Return value:
2793 * 0 on success
2794 **/
2795static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2796 u32 start_addr,
2797 __be32 *dest, u32 length_in_words)
2798{
2799 int i;
2800
2801 for (i = 0; i < length_in_words; i++) {
2802 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2803 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2804 dest++;
2805 }
2806
2807 return 0;
2808}
2809
1da177e4
LT		 2810/**
2811 * ipr_get_ldump_data_section - Dump IOA memory
2812 * @ioa_cfg: ioa config struct
2813 * @start_addr: adapter address to dump
2814 * @dest: destination kernel buffer
2815 * @length_in_words: length to dump in 4 byte words
2816 *
2817 * Return value:
2818 * 0 on success / -EIO on failure
2819 **/
2820static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2821 u32 start_addr,
2822 __be32 *dest, u32 length_in_words)
2823{
2824 volatile u32 temp_pcii_reg;
2825 int i, delay = 0;
2826
dcbad00e
WB		 2827 if (ioa_cfg->sis64)
2828 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2829 dest, length_in_words);
2830
1da177e4
LT		 2831 /* Write IOA interrupt reg starting LDUMP state */
2832 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2833 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2834
2835 /* Wait for IO debug acknowledge */
2836 if (ipr_wait_iodbg_ack(ioa_cfg,
2837 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2838 dev_err(&ioa_cfg->pdev->dev,
2839 "IOA dump long data transfer timeout\n");
2840 return -EIO;
2841 }
2842
2843 /* Signal LDUMP interlocked - clear IO debug ack */
2844 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2845 ioa_cfg->regs.clr_interrupt_reg);
2846
2847 /* Write Mailbox with starting address */
2848 writel(start_addr, ioa_cfg->ioa_mailbox);
2849
2850 /* Signal address valid - clear IOA Reset alert */
2851 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2852 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2853
2854 for (i = 0; i < length_in_words; i++) {
2855 /* Wait for IO debug acknowledge */
2856 if (ipr_wait_iodbg_ack(ioa_cfg,
2857 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2858 dev_err(&ioa_cfg->pdev->dev,
2859 "IOA dump short data transfer timeout\n");
2860 return -EIO;
2861 }
2862
2863 /* Read data from mailbox and increment destination pointer */
2864 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2865 dest++;
2866
2867 /* For all but the last word of data, signal data received */
2868 if (i < (length_in_words - 1)) {
2869 /* Signal dump data received - Clear IO debug Ack */
2870 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2871 ioa_cfg->regs.clr_interrupt_reg);
2872 }
2873 }
2874
2875 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2876 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2877 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2878
2879 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2880 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2881
2882 /* Signal dump data received - Clear IO debug Ack */
2883 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2884 ioa_cfg->regs.clr_interrupt_reg);
2885
2886 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2887 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2888 temp_pcii_reg =
214777ba 2889 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2890
2891 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2892 return 0;
2893
2894 udelay(10);
2895 delay += 10;
2896 }
2897
2898 return 0;
2899}
2900
2901#ifdef CONFIG_SCSI_IPR_DUMP
2902/**
2903 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2904 * @ioa_cfg: ioa config struct
2905 * @pci_address: adapter address
2906 * @length: length of data to copy
2907 *
2908 * Copy data from PCI adapter to kernel buffer.
2909 * Note: length MUST be a 4 byte multiple
2910 * Return value:
2911 * 0 on success / other on failure
2912 **/
2913static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2914 unsigned long pci_address, u32 length)
2915{
2916 int bytes_copied = 0;
4d4dd706 2917 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2918 __be32 *page;
2919 unsigned long lock_flags = 0;
2920 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2921
4d4dd706
KSS		 2922 if (ioa_cfg->sis64)
2923 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2924 else
2925 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2926
1da177e4 2927 while (bytes_copied < length &&
4d4dd706 2928 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2929 if (ioa_dump->page_offset >= PAGE_SIZE ||
2930 ioa_dump->page_offset == 0) {
2931 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2932
2933 if (!page) {
2934 ipr_trace;
2935 return bytes_copied;
2936 }
2937
2938 ioa_dump->page_offset = 0;
2939 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2940 ioa_dump->next_page_index++;
2941 } else
2942 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2943
2944 rem_len = length - bytes_copied;
2945 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2946 cur_len = min(rem_len, rem_page_len);
2947
2948 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2949 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2950 rc = -EIO;
2951 } else {
2952 rc = ipr_get_ldump_data_section(ioa_cfg,
2953 pci_address + bytes_copied,
2954 &page[ioa_dump->page_offset / 4],
2955 (cur_len / sizeof(u32)));
2956 }
2957 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2958
2959 if (!rc) {
2960 ioa_dump->page_offset += cur_len;
2961 bytes_copied += cur_len;
2962 } else {
2963 ipr_trace;
2964 break;
2965 }
2966 schedule();
2967 }
2968
2969 return bytes_copied;
2970}
2971
2972/**
2973 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2974 * @hdr: dump entry header struct
2975 *
2976 * Return value:
2977 * nothing
2978 **/
2979static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2980{
2981 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2982 hdr->num_elems = 1;
2983 hdr->offset = sizeof(*hdr);
2984 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2985}
2986
2987/**
2988 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2989 * @ioa_cfg: ioa config struct
2990 * @driver_dump: driver dump struct
2991 *
2992 * Return value:
2993 * nothing
2994 **/
2995static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2996 struct ipr_driver_dump *driver_dump)
2997{
2998 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2999
3000 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
3001 driver_dump->ioa_type_entry.hdr.len =
3002 sizeof(struct ipr_dump_ioa_type_entry) -
3003 sizeof(struct ipr_dump_entry_header);
3004 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3005 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
3006 driver_dump->ioa_type_entry.type = ioa_cfg->type;
3007 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
3008 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
3009 ucode_vpd->minor_release[1];
3010 driver_dump->hdr.num_entries++;
3011}
3012
3013/**
3014 * ipr_dump_version_data - Fill in the driver version in the dump.
3015 * @ioa_cfg: ioa config struct
3016 * @driver_dump: driver dump struct
3017 *
3018 * Return value:
3019 * nothing
3020 **/
3021static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
3022 struct ipr_driver_dump *driver_dump)
3023{
3024 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
3025 driver_dump->version_entry.hdr.len =
3026 sizeof(struct ipr_dump_version_entry) -
3027 sizeof(struct ipr_dump_entry_header);
3028 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3029 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
3030 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
3031 driver_dump->hdr.num_entries++;
3032}
3033
3034/**
3035 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3036 * @ioa_cfg: ioa config struct
3037 * @driver_dump: driver dump struct
3038 *
3039 * Return value:
3040 * nothing
3041 **/
3042static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3043 struct ipr_driver_dump *driver_dump)
3044{
3045 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3046 driver_dump->trace_entry.hdr.len =
3047 sizeof(struct ipr_dump_trace_entry) -
3048 sizeof(struct ipr_dump_entry_header);
3049 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3050 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3051 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3052 driver_dump->hdr.num_entries++;
3053}
3054
3055/**
3056 * ipr_dump_location_data - Fill in the IOA location in the dump.
3057 * @ioa_cfg: ioa config struct
3058 * @driver_dump: driver dump struct
3059 *
3060 * Return value:
3061 * nothing
3062 **/
3063static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3064 struct ipr_driver_dump *driver_dump)
3065{
3066 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3067 driver_dump->location_entry.hdr.len =
3068 sizeof(struct ipr_dump_location_entry) -
3069 sizeof(struct ipr_dump_entry_header);
3070 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3071 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3072 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3073 driver_dump->hdr.num_entries++;
3074}
3075
3076/**
3077 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3078 * @ioa_cfg: ioa config struct
3079 * @dump: dump struct
3080 *
3081 * Return value:
3082 * nothing
3083 **/
3084static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3085{
3086 unsigned long start_addr, sdt_word;
3087 unsigned long lock_flags = 0;
3088 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3089 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3090 u32 num_entries, max_num_entries, start_off, end_off;
3091 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3092 struct ipr_sdt *sdt;
dcbad00e 3093 int valid = 1;
1da177e4
LT		 3094 int i;
3095
3096 ENTER;
3097
3098 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3099
41e9a696 3100 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3101 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3102 return;
3103 }
3104
110def85
WB		 3105 if (ioa_cfg->sis64) {
3106 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3107 ssleep(IPR_DUMP_DELAY_SECONDS);
3108 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3109 }
3110
1da177e4
LT		 3111 start_addr = readl(ioa_cfg->ioa_mailbox);
3112
dcbad00e 3113 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3114 dev_err(&ioa_cfg->pdev->dev,
3115 "Invalid dump table format: %lx\n", start_addr);
3116 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3117 return;
3118 }
3119
3120 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3121
3122 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3123
3124 /* Initialize the overall dump header */
3125 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3126 driver_dump->hdr.num_entries = 1;
3127 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3128 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3129 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3130 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3131
3132 ipr_dump_version_data(ioa_cfg, driver_dump);
3133 ipr_dump_location_data(ioa_cfg, driver_dump);
3134 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3135 ipr_dump_trace_data(ioa_cfg, driver_dump);
3136
3137 /* Update dump_header */
3138 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3139
3140 /* IOA Dump entry */
3141 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3142 ioa_dump->hdr.len = 0;
3143 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3144 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3145
3146 /* First entries in sdt are actually a list of dump addresses and
3147 lengths to gather the real dump data. sdt represents the pointer
3148 to the ioa generated dump table. Dump data will be extracted based
3149 on entries in this table */
3150 sdt = &ioa_dump->sdt;
3151
4d4dd706
KSS		 3152 if (ioa_cfg->sis64) {
3153 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3154 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3155 } else {
3156 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3157 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3158 }
3159
3160 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3161 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3162 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3163 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3164
3165 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3166 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3167 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3168 dev_err(&ioa_cfg->pdev->dev,
3169 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3170 rc, be32_to_cpu(sdt->hdr.state));
3171 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3172 ioa_cfg->sdt_state = DUMP_OBTAINED;
3173 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3174 return;
3175 }
3176
3177 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3178
4d4dd706
KSS		 3179 if (num_entries > max_num_entries)
3180 num_entries = max_num_entries;
3181
3182 /* Update dump length to the actual data to be copied */
3183 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3184 if (ioa_cfg->sis64)
3185 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3186 else
3187 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3188
3189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3190
3191 for (i = 0; i < num_entries; i++) {
4d4dd706 3192 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3193 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3194 break;
3195 }
3196
3197 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3198 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3199 if (ioa_cfg->sis64)
3200 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3201 else {
3202 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3203 end_off = be32_to_cpu(sdt->entry[i].end_token);
3204
3205 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3206 bytes_to_copy = end_off - start_off;
3207 else
3208 valid = 0;
3209 }
3210 if (valid) {
4d4dd706 3211 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3212 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3213 continue;
3214 }
3215
3216 /* Copy data from adapter to driver buffers */
3217 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3218 bytes_to_copy);
3219
3220 ioa_dump->hdr.len += bytes_copied;
3221
3222 if (bytes_copied != bytes_to_copy) {
3223 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3224 break;
3225 }
3226 }
3227 }
3228 }
3229
3230 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3231
3232 /* Update dump_header */
3233 driver_dump->hdr.len += ioa_dump->hdr.len;
3234 wmb();
3235 ioa_cfg->sdt_state = DUMP_OBTAINED;
3236 LEAVE;
3237}
3238
3239#else
203fa3fe 3240#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3241#endif
3242
3243/**
3244 * ipr_release_dump - Free adapter dump memory
3245 * @kref: kref struct
3246 *
3247 * Return value:
3248 * nothing
3249 **/
3250static void ipr_release_dump(struct kref *kref)
3251{
203fa3fe 3252 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3253 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3254 unsigned long lock_flags = 0;
3255 int i;
3256
3257 ENTER;
3258 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3259 ioa_cfg->dump = NULL;
3260 ioa_cfg->sdt_state = INACTIVE;
3261 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3262
3263 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3264 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3265
4d4dd706 3266 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3267 kfree(dump);
3268 LEAVE;
3269}
3270
3271/**
3272 * ipr_worker_thread - Worker thread
c4028958 3273 * @work: ioa config struct
1da177e4
LT		 3274 *
3275 * Called at task level from a work thread. This function takes care
3276 * of adding and removing device from the mid-layer as configuration
3277 * changes are detected by the adapter.
3278 *
3279 * Return value:
3280 * nothing
3281 **/
c4028958 3282static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3283{
3284 unsigned long lock_flags;
3285 struct ipr_resource_entry *res;
3286 struct scsi_device *sdev;
3287 struct ipr_dump *dump;
c4028958
DH		 3288 struct ipr_ioa_cfg *ioa_cfg =
3289 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3290 u8 bus, target, lun;
3291 int did_work;
3292
3293 ENTER;
3294 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3295
41e9a696 3296 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3297 dump = ioa_cfg->dump;
3298 if (!dump) {
3299 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3300 return;
3301 }
3302 kref_get(&dump->kref);
3303 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3304 ipr_get_ioa_dump(ioa_cfg, dump);
3305 kref_put(&dump->kref, ipr_release_dump);
3306
3307 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3308 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3309 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3310 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3311 return;
3312 }
3313
b195d5e2
BK		 3314 if (!ioa_cfg->scan_enabled) {
3315 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3316 return;
3317 }
3318
1da177e4
LT		 3319restart:
3320 do {
3321 did_work = 0;
f688f96d 3322 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4
LT		 3323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3324 return;
3325 }
3326
3327 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3328 if (res->del_from_ml && res->sdev) {
3329 did_work = 1;
3330 sdev = res->sdev;
3331 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3332 if (!res->add_to_ml)
3333 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3334 else
3335 res->del_from_ml = 0;
1da177e4
LT		 3336 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3337 scsi_remove_device(sdev);
3338 scsi_device_put(sdev);
3339 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3340 }
3341 break;
3342 }
3343 }
203fa3fe 3344 } while (did_work);
1da177e4
LT		 3345
3346 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3347 if (res->add_to_ml) {
3e7ebdfa
WB		 3348 bus = res->bus;
3349 target = res->target;
3350 lun = res->lun;
1121b794 3351 res->add_to_ml = 0;
1da177e4
LT		 3352 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3353 scsi_add_device(ioa_cfg->host, bus, target, lun);
3354 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3355 goto restart;
3356 }
3357 }
3358
f688f96d 3359 ioa_cfg->scan_done = 1;
1da177e4 3360 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3361 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3362 LEAVE;
3363}
3364
3365#ifdef CONFIG_SCSI_IPR_TRACE
3366/**
3367 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3368 * @filp: open sysfs file
1da177e4 3369 * @kobj: kobject struct
91a69029 3370 * @bin_attr: bin_attribute struct
1da177e4
LT		 3371 * @buf: buffer
3372 * @off: offset
3373 * @count: buffer size
3374 *
3375 * Return value:
3376 * number of bytes printed to buffer
3377 **/
2c3c8bea 3378static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3379 struct bin_attribute *bin_attr,
3380 char *buf, loff_t off, size_t count)
1da177e4 3381{
ee959b00
TJ		 3382 struct device *dev = container_of(kobj, struct device, kobj);
3383 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3384 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3385 unsigned long lock_flags = 0;
d777aaf3 3386 ssize_t ret;
1da177e4
LT		 3387
3388 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3389 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3390 IPR_TRACE_SIZE);
1da177e4 3391 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3392
3393 return ret;
1da177e4
LT		 3394}
3395
3396static struct bin_attribute ipr_trace_attr = {
3397 .attr = {
3398 .name = "trace",
3399 .mode = S_IRUGO,
3400 },
3401 .size = 0,
3402 .read = ipr_read_trace,
3403};
3404#endif
3405
3406/**
3407 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3408 * @dev: class device struct
3409 * @buf: buffer
1da177e4
LT		 3410 *
3411 * Return value:
3412 * number of bytes printed to buffer
3413 **/
ee959b00
TJ		 3414static ssize_t ipr_show_fw_version(struct device *dev,
3415 struct device_attribute *attr, char *buf)
1da177e4 3416{
ee959b00 3417 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3418 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3419 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3420 unsigned long lock_flags = 0;
3421 int len;
3422
3423 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3424 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3425 ucode_vpd->major_release, ucode_vpd->card_type,
3426 ucode_vpd->minor_release[0],
3427 ucode_vpd->minor_release[1]);
3428 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3429 return len;
3430}
3431
ee959b00 3432static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3433 .attr = {
3434 .name = "fw_version",
3435 .mode = S_IRUGO,
3436 },
3437 .show = ipr_show_fw_version,
3438};
3439
3440/**
3441 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3442 * @dev: class device struct
3443 * @buf: buffer
1da177e4
LT		 3444 *
3445 * Return value:
3446 * number of bytes printed to buffer
3447 **/
ee959b00
TJ		 3448static ssize_t ipr_show_log_level(struct device *dev,
3449 struct device_attribute *attr, char *buf)
1da177e4 3450{
ee959b00 3451 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3452 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3453 unsigned long lock_flags = 0;
3454 int len;
3455
3456 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3457 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3458 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3459 return len;
3460}
3461
3462/**
3463 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3464 * @dev: class device struct
3465 * @buf: buffer
1da177e4
LT		 3466 *
3467 * Return value:
3468 * number of bytes printed to buffer
3469 **/
ee959b00 3470static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3471 struct device_attribute *attr,
1da177e4
LT		 3472 const char *buf, size_t count)
3473{
ee959b00 3474 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3475 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3476 unsigned long lock_flags = 0;
3477
3478 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3479 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3480 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3481 return strlen(buf);
3482}
3483
ee959b00 3484static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3485 .attr = {
3486 .name = "log_level",
3487 .mode = S_IRUGO | S_IWUSR,
3488 },
3489 .show = ipr_show_log_level,
3490 .store = ipr_store_log_level
3491};
3492
3493/**
3494 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3495 * @dev: device struct
3496 * @buf: buffer
3497 * @count: buffer size
1da177e4
LT		 3498 *
3499 * This function will reset the adapter and wait a reasonable
3500 * amount of time for any errors that the adapter might log.
3501 *
3502 * Return value:
3503 * count on success / other on failure
3504 **/
ee959b00
TJ		 3505static ssize_t ipr_store_diagnostics(struct device *dev,
3506 struct device_attribute *attr,
1da177e4
LT		 3507 const char *buf, size_t count)
3508{
ee959b00 3509 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3510 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3511 unsigned long lock_flags = 0;
3512 int rc = count;
3513
3514 if (!capable(CAP_SYS_ADMIN))
3515 return -EACCES;
3516
1da177e4 3517 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3518 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3519 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3520 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3521 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3522 }
3523
1da177e4
LT		 3524 ioa_cfg->errors_logged = 0;
3525 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3526
3527 if (ioa_cfg->in_reset_reload) {
3528 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3529 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3530
3531 /* Wait for a second for any errors to be logged */
3532 msleep(1000);
3533 } else {
3534 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3535 return -EIO;
3536 }
3537
3538 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3539 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3540 rc = -EIO;
3541 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3542
3543 return rc;
3544}
3545
ee959b00 3546static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3547 .attr = {
3548 .name = "run_diagnostics",
3549 .mode = S_IWUSR,
3550 },
3551 .store = ipr_store_diagnostics
3552};
3553
f37eb54b
BK		 3554/**
3555 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3556 * @class_dev: device struct
3557 * @buf: buffer
f37eb54b
BK		 3558 *
3559 * Return value:
3560 * number of bytes printed to buffer
3561 **/
ee959b00
TJ		 3562static ssize_t ipr_show_adapter_state(struct device *dev,
3563 struct device_attribute *attr, char *buf)
f37eb54b 3564{
ee959b00 3565 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3566 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3567 unsigned long lock_flags = 0;
3568 int len;
3569
3570 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3571 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b
BK		 3572 len = snprintf(buf, PAGE_SIZE, "offline\n");
3573 else
3574 len = snprintf(buf, PAGE_SIZE, "online\n");
3575 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3576 return len;
3577}
3578
3579/**
3580 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3581 * @dev: device struct
3582 * @buf: buffer
3583 * @count: buffer size
f37eb54b
BK		 3584 *
3585 * This function will change the adapter's state.
3586 *
3587 * Return value:
3588 * count on success / other on failure
3589 **/
ee959b00
TJ		 3590static ssize_t ipr_store_adapter_state(struct device *dev,
3591 struct device_attribute *attr,
f37eb54b
BK		 3592 const char *buf, size_t count)
3593{
ee959b00 3594 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3595 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3596 unsigned long lock_flags;
56d6aa33 3597 int result = count, i;
f37eb54b
BK		 3598
3599 if (!capable(CAP_SYS_ADMIN))
3600 return -EACCES;
3601
3602 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3603 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3604 !strncmp(buf, "online", 6)) {
3605 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3606 spin_lock(&ioa_cfg->hrrq[i]._lock);
3607 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3608 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3609 }
3610 wmb();
f37eb54b
BK		 3611 ioa_cfg->reset_retries = 0;
3612 ioa_cfg->in_ioa_bringdown = 0;
3613 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3614 }
3615 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3616 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3617
3618 return result;
3619}
3620
ee959b00 3621static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3622 .attr = {
49dd0961 3623 .name = "online_state",
f37eb54b
BK		 3624 .mode = S_IRUGO | S_IWUSR,
3625 },
3626 .show = ipr_show_adapter_state,
3627 .store = ipr_store_adapter_state
3628};
3629
1da177e4
LT		 3630/**
3631 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3632 * @dev: device struct
3633 * @buf: buffer
3634 * @count: buffer size
1da177e4
LT		 3635 *
3636 * This function will reset the adapter.
3637 *
3638 * Return value:
3639 * count on success / other on failure
3640 **/
ee959b00
TJ		 3641static ssize_t ipr_store_reset_adapter(struct device *dev,
3642 struct device_attribute *attr,
1da177e4
LT		 3643 const char *buf, size_t count)
3644{
ee959b00 3645 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3646 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3647 unsigned long lock_flags;
3648 int result = count;
3649
3650 if (!capable(CAP_SYS_ADMIN))
3651 return -EACCES;
3652
3653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3654 if (!ioa_cfg->in_reset_reload)
3655 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3656 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3657 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3658
3659 return result;
3660}
3661
ee959b00 3662static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3663 .attr = {
3664 .name = "reset_host",
3665 .mode = S_IWUSR,
3666 },
3667 .store = ipr_store_reset_adapter
3668};
3669
511cbce2 3670static int ipr_iopoll(struct irq_poll *iop, int budget);
b53d124a 3671 /**
3672 * ipr_show_iopoll_weight - Show ipr polling mode
3673 * @dev: class device struct
3674 * @buf: buffer
3675 *
3676 * Return value:
3677 * number of bytes printed to buffer
3678 **/
3679static ssize_t ipr_show_iopoll_weight(struct device *dev,
3680 struct device_attribute *attr, char *buf)
3681{
3682 struct Scsi_Host *shost = class_to_shost(dev);
3683 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3684 unsigned long lock_flags = 0;
3685 int len;
3686
3687 spin_lock_irqsave(shost->host_lock, lock_flags);
3688 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3689 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3690
3691 return len;
3692}
3693
3694/**
3695 * ipr_store_iopoll_weight - Change the adapter's polling mode
3696 * @dev: class device struct
3697 * @buf: buffer
3698 *
3699 * Return value:
3700 * number of bytes printed to buffer
3701 **/
3702static ssize_t ipr_store_iopoll_weight(struct device *dev,
3703 struct device_attribute *attr,
3704 const char *buf, size_t count)
3705{
3706 struct Scsi_Host *shost = class_to_shost(dev);
3707 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3708 unsigned long user_iopoll_weight;
3709 unsigned long lock_flags = 0;
3710 int i;
3711
3712 if (!ioa_cfg->sis64) {
511cbce2 3713 dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n");
b53d124a 3714 return -EINVAL;
3715 }
3716 if (kstrtoul(buf, 10, &user_iopoll_weight))
3717 return -EINVAL;
3718
3719 if (user_iopoll_weight > 256) {
511cbce2 3720 dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n");
b53d124a 3721 return -EINVAL;
3722 }
3723
3724 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
511cbce2 3725 dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n");
b53d124a 3726 return strlen(buf);
3727 }
3728
89f8b33c 3729 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3730 for (i = 1; i < ioa_cfg->hrrq_num; i++)
511cbce2 3731 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
b53d124a 3732 }
3733
3734 spin_lock_irqsave(shost->host_lock, lock_flags);
3735 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3736 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3737 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
511cbce2 3738 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
b53d124a 3739 ioa_cfg->iopoll_weight, ipr_iopoll);
b53d124a 3740 }
3741 }
3742 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3743
3744 return strlen(buf);
3745}
3746
3747static struct device_attribute ipr_iopoll_weight_attr = {
3748 .attr = {
3749 .name = "iopoll_weight",
3750 .mode = S_IRUGO | S_IWUSR,
3751 },
3752 .show = ipr_show_iopoll_weight,
3753 .store = ipr_store_iopoll_weight
3754};
3755
1da177e4
LT		 3756/**
3757 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3758 * @buf_len: buffer length
3759 *
3760 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3761 * list to use for microcode download
3762 *
3763 * Return value:
3764 * pointer to sglist / NULL on failure
3765 **/
3766static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3767{
3768 int sg_size, order, bsize_elem, num_elem, i, j;
3769 struct ipr_sglist *sglist;
3770 struct scatterlist *scatterlist;
3771 struct page *page;
3772
3773 /* Get the minimum size per scatter/gather element */
3774 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3775
3776 /* Get the actual size per element */
3777 order = get_order(sg_size);
3778
3779 /* Determine the actual number of bytes per element */
3780 bsize_elem = PAGE_SIZE * (1 << order);
3781
3782 /* Determine the actual number of sg entries needed */
3783 if (buf_len % bsize_elem)
3784 num_elem = (buf_len / bsize_elem) + 1;
3785 else
3786 num_elem = buf_len / bsize_elem;
3787
3788 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3789 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3790 (sizeof(struct scatterlist) * (num_elem - 1)),
3791 GFP_KERNEL);
3792
3793 if (sglist == NULL) {
3794 ipr_trace;
3795 return NULL;
3796 }
3797
1da177e4 3798 scatterlist = sglist->scatterlist;
45711f1a 3799 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3800
3801 sglist->order = order;
3802 sglist->num_sg = num_elem;
3803
3804 /* Allocate a bunch of sg elements */
3805 for (i = 0; i < num_elem; i++) {
3806 page = alloc_pages(GFP_KERNEL, order);
3807 if (!page) {
3808 ipr_trace;
3809
3810 /* Free up what we already allocated */
3811 for (j = i - 1; j >= 0; j--)
45711f1a 3812 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3813 kfree(sglist);
3814 return NULL;
3815 }
3816
642f1490 3817 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3818 }
3819
3820 return sglist;
3821}
3822
3823/**
3824 * ipr_free_ucode_buffer - Frees a microcode download buffer
3825 * @p_dnld: scatter/gather list pointer
3826 *
3827 * Free a DMA'able ucode download buffer previously allocated with
3828 * ipr_alloc_ucode_buffer
3829 *
3830 * Return value:
3831 * nothing
3832 **/
3833static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3834{
3835 int i;
3836
3837 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3838 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3839
3840 kfree(sglist);
3841}
3842
3843/**
3844 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3845 * @sglist: scatter/gather list pointer
3846 * @buffer: buffer pointer
3847 * @len: buffer length
3848 *
3849 * Copy a microcode image from a user buffer into a buffer allocated by
3850 * ipr_alloc_ucode_buffer
3851 *
3852 * Return value:
3853 * 0 on success / other on failure
3854 **/
3855static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3856 u8 *buffer, u32 len)
3857{
3858 int bsize_elem, i, result = 0;
3859 struct scatterlist *scatterlist;
3860 void *kaddr;
3861
3862 /* Determine the actual number of bytes per element */
3863 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3864
3865 scatterlist = sglist->scatterlist;
3866
3867 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3868 struct page *page = sg_page(&scatterlist[i]);
3869
3870 kaddr = kmap(page);
1da177e4 3871 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3872 kunmap(page);
1da177e4
LT		 3873
3874 scatterlist[i].length = bsize_elem;
3875
3876 if (result != 0) {
3877 ipr_trace;
3878 return result;
3879 }
3880 }
3881
3882 if (len % bsize_elem) {
45711f1a
JA		 3883 struct page *page = sg_page(&scatterlist[i]);
3884
3885 kaddr = kmap(page);
1da177e4 3886 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3887 kunmap(page);
1da177e4
LT		 3888
3889 scatterlist[i].length = len % bsize_elem;
3890 }
3891
3892 sglist->buffer_len = len;
3893 return result;
3894}
3895
a32c055f
WB		 3896/**
3897 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3898 * @ipr_cmd: ipr command struct
3899 * @sglist: scatter/gather list
3900 *
3901 * Builds a microcode download IOA data list (IOADL).
3902 *
3903 **/
3904static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3905 struct ipr_sglist *sglist)
3906{
3907 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3908 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3909 struct scatterlist *scatterlist = sglist->scatterlist;
3910 int i;
3911
3912 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3913 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3914 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3915
3916 ioarcb->ioadl_len =
3917 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3918 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3919 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3920 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3921 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3922 }
3923
3924 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3925}
3926
1da177e4 3927/**
12baa420 3928 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3929 * @ipr_cmd: ipr command struct
3930 * @sglist: scatter/gather list
1da177e4 3931 *
12baa420 3932 * Builds a microcode download IOA data list (IOADL).
1da177e4 3933 *
1da177e4 3934 **/
12baa420
BK		 3935static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3936 struct ipr_sglist *sglist)
1da177e4 3937{
1da177e4 3938 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3939 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3940 struct scatterlist *scatterlist = sglist->scatterlist;
3941 int i;
3942
12baa420 3943 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3944 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3945 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3946
3947 ioarcb->ioadl_len =
1da177e4
LT		 3948 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3949
3950 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3951 ioadl[i].flags_and_data_len =
3952 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3953 ioadl[i].address =
3954 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3955 }
3956
12baa420
BK		 3957 ioadl[i-1].flags_and_data_len |=
3958 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3959}
3960
3961/**
3962 * ipr_update_ioa_ucode - Update IOA's microcode
3963 * @ioa_cfg: ioa config struct
3964 * @sglist: scatter/gather list
3965 *
3966 * Initiate an adapter reset to update the IOA's microcode
3967 *
3968 * Return value:
3969 * 0 on success / -EIO on failure
3970 **/
3971static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3972 struct ipr_sglist *sglist)
3973{
3974 unsigned long lock_flags;
3975
3976 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3977 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3978 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3979 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3980 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3981 }
12baa420
BK		 3982
3983 if (ioa_cfg->ucode_sglist) {
3984 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3985 dev_err(&ioa_cfg->pdev->dev,
3986 "Microcode download already in progress\n");
3987 return -EIO;
1da177e4 3988 }
12baa420 3989
d73341bf
AB		 3990 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3991 sglist->scatterlist, sglist->num_sg,
3992 DMA_TO_DEVICE);
12baa420
BK		 3993
3994 if (!sglist->num_dma_sg) {
3995 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3996 dev_err(&ioa_cfg->pdev->dev,
3997 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3998 return -EIO;
3999 }
4000
12baa420
BK		 4001 ioa_cfg->ucode_sglist = sglist;
4002 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
4003 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4004 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4005
4006 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4007 ioa_cfg->ucode_sglist = NULL;
4008 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 4009 return 0;
4010}
4011
4012/**
4013 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 4014 * @class_dev: device struct
4015 * @buf: buffer
4016 * @count: buffer size
1da177e4
LT		 4017 *
4018 * This function will update the firmware on the adapter.
4019 *
4020 * Return value:
4021 * count on success / other on failure
4022 **/
ee959b00
TJ		 4023static ssize_t ipr_store_update_fw(struct device *dev,
4024 struct device_attribute *attr,
4025 const char *buf, size_t count)
1da177e4 4026{
ee959b00 4027 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 4028 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4029 struct ipr_ucode_image_header *image_hdr;
4030 const struct firmware *fw_entry;
4031 struct ipr_sglist *sglist;
1da177e4
LT		 4032 char fname[100];
4033 char *src;
21b81716 4034 char *endline;
d63c7dd5 4035 int result, dnld_size;
1da177e4
LT		 4036
4037 if (!capable(CAP_SYS_ADMIN))
4038 return -EACCES;
4039
d63c7dd5 4040 snprintf(fname, sizeof(fname), "%s", buf);
1da177e4 4041
21b81716
GKB		 4042 endline = strchr(fname, '\n');
4043 if (endline)
4044 *endline = '\0';
4045
203fa3fe 4046 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 4047 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
4048 return -EIO;
4049 }
4050
4051 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4052
1da177e4
LT		 4053 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4054 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4055 sglist = ipr_alloc_ucode_buffer(dnld_size);
4056
4057 if (!sglist) {
4058 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4059 release_firmware(fw_entry);
4060 return -ENOMEM;
4061 }
4062
4063 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4064
4065 if (result) {
4066 dev_err(&ioa_cfg->pdev->dev,
4067 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4068 goto out;
1da177e4
LT		 4069 }
4070
14ed9cc7
WB		 4071 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4072
12baa420 4073 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4074
12baa420
BK		 4075 if (!result)
4076 result = count;
4077out:
1da177e4
LT		 4078 ipr_free_ucode_buffer(sglist);
4079 release_firmware(fw_entry);
12baa420 4080 return result;
1da177e4
LT		 4081}
4082
ee959b00 4083static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4084 .attr = {
4085 .name = "update_fw",
4086 .mode = S_IWUSR,
4087 },
4088 .store = ipr_store_update_fw
4089};
4090
75576bb9
WB		 4091/**
4092 * ipr_show_fw_type - Show the adapter's firmware type.
4093 * @dev: class device struct
4094 * @buf: buffer
4095 *
4096 * Return value:
4097 * number of bytes printed to buffer
4098 **/
4099static ssize_t ipr_show_fw_type(struct device *dev,
4100 struct device_attribute *attr, char *buf)
4101{
4102 struct Scsi_Host *shost = class_to_shost(dev);
4103 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4104 unsigned long lock_flags = 0;
4105 int len;
4106
4107 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4108 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4109 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4110 return len;
4111}
4112
4113static struct device_attribute ipr_ioa_fw_type_attr = {
4114 .attr = {
4115 .name = "fw_type",
4116 .mode = S_IRUGO,
4117 },
4118 .show = ipr_show_fw_type
4119};
4120
afc3f83c
BK		 4121static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj,
4122 struct bin_attribute *bin_attr, char *buf,
4123 loff_t off, size_t count)
4124{
4125 struct device *cdev = container_of(kobj, struct device, kobj);
4126 struct Scsi_Host *shost = class_to_shost(cdev);
4127 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4128 struct ipr_hostrcb *hostrcb;
4129 unsigned long lock_flags = 0;
4130 int ret;
4131
4132 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4133 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4134 struct ipr_hostrcb, queue);
4135 if (!hostrcb) {
4136 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4137 return 0;
4138 }
4139 ret = memory_read_from_buffer(buf, count, &off, &hostrcb->hcam,
4140 sizeof(hostrcb->hcam));
4141 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4142 return ret;
4143}
4144
4145static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj,
4146 struct bin_attribute *bin_attr, char *buf,
4147 loff_t off, size_t count)
4148{
4149 struct device *cdev = container_of(kobj, struct device, kobj);
4150 struct Scsi_Host *shost = class_to_shost(cdev);
4151 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4152 struct ipr_hostrcb *hostrcb;
4153 unsigned long lock_flags = 0;
4154
4155 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4156 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q,
4157 struct ipr_hostrcb, queue);
4158 if (!hostrcb) {
4159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4160 return count;
4161 }
4162
4163 /* Reclaim hostrcb before exit */
4164 list_move_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
4165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4166 return count;
4167}
4168
4169static struct bin_attribute ipr_ioa_async_err_log = {
4170 .attr = {
4171 .name = "async_err_log",
4172 .mode = S_IRUGO | S_IWUSR,
4173 },
4174 .size = 0,
4175 .read = ipr_read_async_err_log,
4176 .write = ipr_next_async_err_log
4177};
4178
ee959b00 4179static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4180 &ipr_fw_version_attr,
4181 &ipr_log_level_attr,
4182 &ipr_diagnostics_attr,
f37eb54b 4183 &ipr_ioa_state_attr,
1da177e4
LT		 4184 &ipr_ioa_reset_attr,
4185 &ipr_update_fw_attr,
75576bb9 4186 &ipr_ioa_fw_type_attr,
b53d124a 4187 &ipr_iopoll_weight_attr,
1da177e4
LT		 4188 NULL,
4189};
4190
4191#ifdef CONFIG_SCSI_IPR_DUMP
4192/**
4193 * ipr_read_dump - Dump the adapter
2c3c8bea 4194 * @filp: open sysfs file
1da177e4 4195 * @kobj: kobject struct
91a69029 4196 * @bin_attr: bin_attribute struct
1da177e4
LT		 4197 * @buf: buffer
4198 * @off: offset
4199 * @count: buffer size
4200 *
4201 * Return value:
4202 * number of bytes printed to buffer
4203 **/
2c3c8bea 4204static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4205 struct bin_attribute *bin_attr,
4206 char *buf, loff_t off, size_t count)
1da177e4 4207{
ee959b00 4208 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4209 struct Scsi_Host *shost = class_to_shost(cdev);
4210 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4211 struct ipr_dump *dump;
4212 unsigned long lock_flags = 0;
4213 char *src;
4d4dd706 4214 int len, sdt_end;
1da177e4
LT		 4215 size_t rc = count;
4216
4217 if (!capable(CAP_SYS_ADMIN))
4218 return -EACCES;
4219
4220 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4221 dump = ioa_cfg->dump;
4222
4223 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4224 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4225 return 0;
4226 }
4227 kref_get(&dump->kref);
4228 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4229
4230 if (off > dump->driver_dump.hdr.len) {
4231 kref_put(&dump->kref, ipr_release_dump);
4232 return 0;
4233 }
4234
4235 if (off + count > dump->driver_dump.hdr.len) {
4236 count = dump->driver_dump.hdr.len - off;
4237 rc = count;
4238 }
4239
4240 if (count && off < sizeof(dump->driver_dump)) {
4241 if (off + count > sizeof(dump->driver_dump))
4242 len = sizeof(dump->driver_dump) - off;
4243 else
4244 len = count;
4245 src = (u8 *)&dump->driver_dump + off;
4246 memcpy(buf, src, len);
4247 buf += len;
4248 off += len;
4249 count -= len;
4250 }
4251
4252 off -= sizeof(dump->driver_dump);
4253
4d4dd706
KSS		 4254 if (ioa_cfg->sis64)
4255 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4256 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4257 sizeof(struct ipr_sdt_entry));
4258 else
4259 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4260 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4261
4262 if (count && off < sdt_end) {
4263 if (off + count > sdt_end)
4264 len = sdt_end - off;
1da177e4
LT		 4265 else
4266 len = count;
4267 src = (u8 *)&dump->ioa_dump + off;
4268 memcpy(buf, src, len);
4269 buf += len;
4270 off += len;
4271 count -= len;
4272 }
4273
4d4dd706 4274 off -= sdt_end;
1da177e4
LT		 4275
4276 while (count) {
4277 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4278 len = PAGE_ALIGN(off) - off;
4279 else
4280 len = count;
4281 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4282 src += off & ~PAGE_MASK;
4283 memcpy(buf, src, len);
4284 buf += len;
4285 off += len;
4286 count -= len;
4287 }
4288
4289 kref_put(&dump->kref, ipr_release_dump);
4290 return rc;
4291}
4292
4293/**
4294 * ipr_alloc_dump - Prepare for adapter dump
4295 * @ioa_cfg: ioa config struct
4296 *
4297 * Return value:
4298 * 0 on success / other on failure
4299 **/
4300static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4301{
4302 struct ipr_dump *dump;
4d4dd706 4303 __be32 **ioa_data;
1da177e4
LT		 4304 unsigned long lock_flags = 0;
4305
0bc42e35 4306 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4307
4308 if (!dump) {
4309 ipr_err("Dump memory allocation failed\n");
4310 return -ENOMEM;
4311 }
4312
4d4dd706
KSS		 4313 if (ioa_cfg->sis64)
4314 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4315 else
4316 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4317
4318 if (!ioa_data) {
4319 ipr_err("Dump memory allocation failed\n");
4320 kfree(dump);
4321 return -ENOMEM;
4322 }
4323
4324 dump->ioa_dump.ioa_data = ioa_data;
4325
1da177e4
LT		 4326 kref_init(&dump->kref);
4327 dump->ioa_cfg = ioa_cfg;
4328
4329 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4330
4331 if (INACTIVE != ioa_cfg->sdt_state) {
4332 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4333 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4334 kfree(dump);
4335 return 0;
4336 }
4337
4338 ioa_cfg->dump = dump;
4339 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4340 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4341 ioa_cfg->dump_taken = 1;
4342 schedule_work(&ioa_cfg->work_q);
4343 }
4344 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4345
1da177e4
LT		 4346 return 0;
4347}
4348
4349/**
4350 * ipr_free_dump - Free adapter dump memory
4351 * @ioa_cfg: ioa config struct
4352 *
4353 * Return value:
4354 * 0 on success / other on failure
4355 **/
4356static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4357{
4358 struct ipr_dump *dump;
4359 unsigned long lock_flags = 0;
4360
4361 ENTER;
4362
4363 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4364 dump = ioa_cfg->dump;
4365 if (!dump) {
4366 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4367 return 0;
4368 }
4369
4370 ioa_cfg->dump = NULL;
4371 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4372
4373 kref_put(&dump->kref, ipr_release_dump);
4374
4375 LEAVE;
4376 return 0;
4377}
4378
4379/**
4380 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4381 * @filp: open sysfs file
1da177e4 4382 * @kobj: kobject struct
91a69029 4383 * @bin_attr: bin_attribute struct
1da177e4
LT		 4384 * @buf: buffer
4385 * @off: offset
4386 * @count: buffer size
4387 *
4388 * Return value:
4389 * number of bytes printed to buffer
4390 **/
2c3c8bea 4391static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4392 struct bin_attribute *bin_attr,
4393 char *buf, loff_t off, size_t count)
1da177e4 4394{
ee959b00 4395 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4396 struct Scsi_Host *shost = class_to_shost(cdev);
4397 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4398 int rc;
4399
4400 if (!capable(CAP_SYS_ADMIN))
4401 return -EACCES;
4402
4403 if (buf[0] == '1')
4404 rc = ipr_alloc_dump(ioa_cfg);
4405 else if (buf[0] == '0')
4406 rc = ipr_free_dump(ioa_cfg);
4407 else
4408 return -EINVAL;
4409
4410 if (rc)
4411 return rc;
4412 else
4413 return count;
4414}
4415
4416static struct bin_attribute ipr_dump_attr = {
4417 .attr = {
4418 .name = "dump",
4419 .mode = S_IRUSR | S_IWUSR,
4420 },
4421 .size = 0,
4422 .read = ipr_read_dump,
4423 .write = ipr_write_dump
4424};
4425#else
4426static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4427#endif
4428
4429/**
4430 * ipr_change_queue_depth - Change the device's queue depth
4431 * @sdev: scsi device struct
4432 * @qdepth: depth to set
e881a172 4433 * @reason: calling context
1da177e4
LT		 4434 *
4435 * Return value:
4436 * actual depth set
4437 **/
db5ed4df 4438static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
1da177e4 4439{
35a39691
BK		 4440 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4441 struct ipr_resource_entry *res;
4442 unsigned long lock_flags = 0;
4443
4444 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4445 res = (struct ipr_resource_entry *)sdev->hostdata;
4446
4447 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4448 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4449 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4450
db5ed4df 4451 scsi_change_queue_depth(sdev, qdepth);
1da177e4
LT		 4452 return sdev->queue_depth;
4453}
4454
1da177e4
LT		 4455/**
4456 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4457 * @dev: device struct
46d74563 4458 * @attr: device attribute structure
1da177e4
LT		 4459 * @buf: buffer
4460 *
4461 * Return value:
4462 * number of bytes printed to buffer
4463 **/
10523b3b 4464static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4465{
4466 struct scsi_device *sdev = to_scsi_device(dev);
4467 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4468 struct ipr_resource_entry *res;
4469 unsigned long lock_flags = 0;
4470 ssize_t len = -ENXIO;
4471
4472 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4473 res = (struct ipr_resource_entry *)sdev->hostdata;
4474 if (res)
3e7ebdfa 4475 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4476 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4477 return len;
4478}
4479
4480static struct device_attribute ipr_adapter_handle_attr = {
4481 .attr = {
4482 .name = "adapter_handle",
4483 .mode = S_IRUSR,
4484 },
4485 .show = ipr_show_adapter_handle
4486};
4487
3e7ebdfa 4488/**
5adcbeb3
WB		 4489 * ipr_show_resource_path - Show the resource path or the resource address for
4490 * this device.
3e7ebdfa 4491 * @dev: device struct
46d74563 4492 * @attr: device attribute structure
3e7ebdfa
WB		 4493 * @buf: buffer
4494 *
4495 * Return value:
4496 * number of bytes printed to buffer
4497 **/
4498static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4499{
4500 struct scsi_device *sdev = to_scsi_device(dev);
4501 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4502 struct ipr_resource_entry *res;
4503 unsigned long lock_flags = 0;
4504 ssize_t len = -ENXIO;
4505 char buffer[IPR_MAX_RES_PATH_LENGTH];
4506
4507 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4508 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4509 if (res && ioa_cfg->sis64)
3e7ebdfa 4510 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4511 __ipr_format_res_path(res->res_path, buffer,
4512 sizeof(buffer)));
5adcbeb3
WB		 4513 else if (res)
4514 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4515 res->bus, res->target, res->lun);
4516
3e7ebdfa
WB		 4517 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4518 return len;
4519}
4520
4521static struct device_attribute ipr_resource_path_attr = {
4522 .attr = {
4523 .name = "resource_path",
75576bb9 4524 .mode = S_IRUGO,
3e7ebdfa
WB		 4525 },
4526 .show = ipr_show_resource_path
4527};
4528
46d74563
WB		 4529/**
4530 * ipr_show_device_id - Show the device_id for this device.
4531 * @dev: device struct
4532 * @attr: device attribute structure
4533 * @buf: buffer
4534 *
4535 * Return value:
4536 * number of bytes printed to buffer
4537 **/
4538static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4539{
4540 struct scsi_device *sdev = to_scsi_device(dev);
4541 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4542 struct ipr_resource_entry *res;
4543 unsigned long lock_flags = 0;
4544 ssize_t len = -ENXIO;
4545
4546 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4547 res = (struct ipr_resource_entry *)sdev->hostdata;
4548 if (res && ioa_cfg->sis64)
bb8647e8 4549 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id));
46d74563
WB		 4550 else if (res)
4551 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4552
4553 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4554 return len;
4555}
4556
4557static struct device_attribute ipr_device_id_attr = {
4558 .attr = {
4559 .name = "device_id",
4560 .mode = S_IRUGO,
4561 },
4562 .show = ipr_show_device_id
4563};
4564
75576bb9
WB		 4565/**
4566 * ipr_show_resource_type - Show the resource type for this device.
4567 * @dev: device struct
46d74563 4568 * @attr: device attribute structure
75576bb9
WB		 4569 * @buf: buffer
4570 *
4571 * Return value:
4572 * number of bytes printed to buffer
4573 **/
4574static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4575{
4576 struct scsi_device *sdev = to_scsi_device(dev);
4577 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4578 struct ipr_resource_entry *res;
4579 unsigned long lock_flags = 0;
4580 ssize_t len = -ENXIO;
4581
4582 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4583 res = (struct ipr_resource_entry *)sdev->hostdata;
4584
4585 if (res)
4586 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4587
4588 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4589 return len;
4590}
4591
4592static struct device_attribute ipr_resource_type_attr = {
4593 .attr = {
4594 .name = "resource_type",
4595 .mode = S_IRUGO,
4596 },
4597 .show = ipr_show_resource_type
4598};
4599
f8ee25d7
WX		 4600/**
4601 * ipr_show_raw_mode - Show the adapter's raw mode
4602 * @dev: class device struct
4603 * @buf: buffer
4604 *
4605 * Return value:
4606 * number of bytes printed to buffer
4607 **/
4608static ssize_t ipr_show_raw_mode(struct device *dev,
4609 struct device_attribute *attr, char *buf)
4610{
4611 struct scsi_device *sdev = to_scsi_device(dev);
4612 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4613 struct ipr_resource_entry *res;
4614 unsigned long lock_flags = 0;
4615 ssize_t len;
4616
4617 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4618 res = (struct ipr_resource_entry *)sdev->hostdata;
4619 if (res)
4620 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode);
4621 else
4622 len = -ENXIO;
4623 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4624 return len;
4625}
4626
4627/**
4628 * ipr_store_raw_mode - Change the adapter's raw mode
4629 * @dev: class device struct
4630 * @buf: buffer
4631 *
4632 * Return value:
4633 * number of bytes printed to buffer
4634 **/
4635static ssize_t ipr_store_raw_mode(struct device *dev,
4636 struct device_attribute *attr,
4637 const char *buf, size_t count)
4638{
4639 struct scsi_device *sdev = to_scsi_device(dev);
4640 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4641 struct ipr_resource_entry *res;
4642 unsigned long lock_flags = 0;
4643 ssize_t len;
4644
4645 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4646 res = (struct ipr_resource_entry *)sdev->hostdata;
4647 if (res) {
e35d7f27 4648 if (ipr_is_af_dasd_device(res)) {
f8ee25d7
WX		 4649 res->raw_mode = simple_strtoul(buf, NULL, 10);
4650 len = strlen(buf);
4651 if (res->sdev)
4652 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n",
4653 res->raw_mode ? "enabled" : "disabled");
4654 } else
4655 len = -EINVAL;
4656 } else
4657 len = -ENXIO;
4658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4659 return len;
4660}
4661
4662static struct device_attribute ipr_raw_mode_attr = {
4663 .attr = {
4664 .name = "raw_mode",
4665 .mode = S_IRUGO | S_IWUSR,
4666 },
4667 .show = ipr_show_raw_mode,
4668 .store = ipr_store_raw_mode
4669};
4670
1da177e4
LT		 4671static struct device_attribute *ipr_dev_attrs[] = {
4672 &ipr_adapter_handle_attr,
3e7ebdfa 4673 &ipr_resource_path_attr,
46d74563 4674 &ipr_device_id_attr,
75576bb9 4675 &ipr_resource_type_attr,
f8ee25d7 4676 &ipr_raw_mode_attr,
1da177e4
LT		 4677 NULL,
4678};
4679
4680/**
4681 * ipr_biosparam - Return the HSC mapping
4682 * @sdev: scsi device struct
4683 * @block_device: block device pointer
4684 * @capacity: capacity of the device
4685 * @parm: Array containing returned HSC values.
4686 *
4687 * This function generates the HSC parms that fdisk uses.
4688 * We want to make sure we return something that places partitions
4689 * on 4k boundaries for best performance with the IOA.
4690 *
4691 * Return value:
4692 * 0 on success
4693 **/
4694static int ipr_biosparam(struct scsi_device *sdev,
4695 struct block_device *block_device,
4696 sector_t capacity, int *parm)
4697{
4698 int heads, sectors;
4699 sector_t cylinders;
4700
4701 heads = 128;
4702 sectors = 32;
4703
4704 cylinders = capacity;
4705 sector_div(cylinders, (128 * 32));
4706
4707 /* return result */
4708 parm[0] = heads;
4709 parm[1] = sectors;
4710 parm[2] = cylinders;
4711
4712 return 0;
4713}
4714
35a39691
BK		 4715/**
4716 * ipr_find_starget - Find target based on bus/target.
4717 * @starget: scsi target struct
4718 *
4719 * Return value:
4720 * resource entry pointer if found / NULL if not found
4721 **/
4722static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4723{
4724 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4725 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4726 struct ipr_resource_entry *res;
4727
4728 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4729 if ((res->bus == starget->channel) &&
0ee1d714 4730 (res->target == starget->id)) {
35a39691
BK		 4731 return res;
4732 }
4733 }
4734
4735 return NULL;
4736}
4737
4738static struct ata_port_info sata_port_info;
4739
4740/**
4741 * ipr_target_alloc - Prepare for commands to a SCSI target
4742 * @starget: scsi target struct
4743 *
4744 * If the device is a SATA device, this function allocates an
4745 * ATA port with libata, else it does nothing.
4746 *
4747 * Return value:
4748 * 0 on success / non-0 on failure
4749 **/
4750static int ipr_target_alloc(struct scsi_target *starget)
4751{
4752 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4753 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4754 struct ipr_sata_port *sata_port;
4755 struct ata_port *ap;
4756 struct ipr_resource_entry *res;
4757 unsigned long lock_flags;
4758
4759 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4760 res = ipr_find_starget(starget);
4761 starget->hostdata = NULL;
4762
4763 if (res && ipr_is_gata(res)) {
4764 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4765 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4766 if (!sata_port)
4767 return -ENOMEM;
4768
4769 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4770 if (ap) {
4771 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4772 sata_port->ioa_cfg = ioa_cfg;
4773 sata_port->ap = ap;
4774 sata_port->res = res;
4775
4776 res->sata_port = sata_port;
4777 ap->private_data = sata_port;
4778 starget->hostdata = sata_port;
4779 } else {
4780 kfree(sata_port);
4781 return -ENOMEM;
4782 }
4783 }
4784 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4785
4786 return 0;
4787}
4788
4789/**
4790 * ipr_target_destroy - Destroy a SCSI target
4791 * @starget: scsi target struct
4792 *
4793 * If the device was a SATA device, this function frees the libata
4794 * ATA port, else it does nothing.
4795 *
4796 **/
4797static void ipr_target_destroy(struct scsi_target *starget)
4798{
4799 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4800 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4801 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4802
4803 if (ioa_cfg->sis64) {
0ee1d714
BK		 4804 if (!ipr_find_starget(starget)) {
4805 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4806 clear_bit(starget->id, ioa_cfg->array_ids);
4807 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4808 clear_bit(starget->id, ioa_cfg->vset_ids);
4809 else if (starget->channel == 0)
4810 clear_bit(starget->id, ioa_cfg->target_ids);
4811 }
3e7ebdfa 4812 }
35a39691
BK		 4813
4814 if (sata_port) {
4815 starget->hostdata = NULL;
4816 ata_sas_port_destroy(sata_port->ap);
4817 kfree(sata_port);
4818 }
4819}
4820
4821/**
4822 * ipr_find_sdev - Find device based on bus/target/lun.
4823 * @sdev: scsi device struct
4824 *
4825 * Return value:
4826 * resource entry pointer if found / NULL if not found
4827 **/
4828static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4829{
4830 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4831 struct ipr_resource_entry *res;
4832
4833 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4834 if ((res->bus == sdev->channel) &&
4835 (res->target == sdev->id) &&
4836 (res->lun == sdev->lun))
35a39691
BK		 4837 return res;
4838 }
4839
4840 return NULL;
4841}
4842
1da177e4
LT		 4843/**
4844 * ipr_slave_destroy - Unconfigure a SCSI device
4845 * @sdev: scsi device struct
4846 *
4847 * Return value:
4848 * nothing
4849 **/
4850static void ipr_slave_destroy(struct scsi_device *sdev)
4851{
4852 struct ipr_resource_entry *res;
4853 struct ipr_ioa_cfg *ioa_cfg;
4854 unsigned long lock_flags = 0;
4855
4856 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4857
4858 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4859 res = (struct ipr_resource_entry *) sdev->hostdata;
4860 if (res) {
35a39691 4861 if (res->sata_port)
3e4ec344 4862 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4863 sdev->hostdata = NULL;
4864 res->sdev = NULL;
35a39691 4865 res->sata_port = NULL;
1da177e4
LT		 4866 }
4867 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4868}
4869
4870/**
4871 * ipr_slave_configure - Configure a SCSI device
4872 * @sdev: scsi device struct
4873 *
4874 * This function configures the specified scsi device.
4875 *
4876 * Return value:
4877 * 0 on success
4878 **/
4879static int ipr_slave_configure(struct scsi_device *sdev)
4880{
4881 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4882 struct ipr_resource_entry *res;
dd406ef8 4883 struct ata_port *ap = NULL;
1da177e4 4884 unsigned long lock_flags = 0;
3e7ebdfa 4885 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4886
4887 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4888 res = sdev->hostdata;
4889 if (res) {
4890 if (ipr_is_af_dasd_device(res))
4891 sdev->type = TYPE_RAID;
0726ce26 4892 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4893 sdev->scsi_level = 4;
0726ce26
BK		 4894 sdev->no_uld_attach = 1;
4895 }
1da177e4 4896 if (ipr_is_vset_device(res)) {
60654e25 4897 sdev->scsi_level = SCSI_SPC_3;
242f9dcb
JA		 4898 blk_queue_rq_timeout(sdev->request_queue,
4899 IPR_VSET_RW_TIMEOUT);
086fa5ff 4900 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4901 }
dd406ef8
BK		 4902 if (ipr_is_gata(res) && res->sata_port)
4903 ap = res->sata_port->ap;
4904 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4905
4906 if (ap) {
db5ed4df 4907 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4908 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4909 }
4910
3e7ebdfa
WB		 4911 if (ioa_cfg->sis64)
4912 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4913 ipr_format_res_path(ioa_cfg,
4914 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4915 return 0;
1da177e4
LT		 4916 }
4917 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4918 return 0;
4919}
4920
35a39691
BK		 4921/**
4922 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4923 * @sdev: scsi device struct
4924 *
4925 * This function initializes an ATA port so that future commands
4926 * sent through queuecommand will work.
4927 *
4928 * Return value:
4929 * 0 on success
4930 **/
4931static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4932{
4933 struct ipr_sata_port *sata_port = NULL;
4934 int rc = -ENXIO;
4935
4936 ENTER;
4937 if (sdev->sdev_target)
4938 sata_port = sdev->sdev_target->hostdata;
b2024459 4939 if (sata_port) {
35a39691 4940 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4941 if (rc == 0)
4942 rc = ata_sas_sync_probe(sata_port->ap);
4943 }
4944
35a39691
BK		 4945 if (rc)
4946 ipr_slave_destroy(sdev);
4947
4948 LEAVE;
4949 return rc;
4950}
4951
1da177e4
LT		 4952/**
4953 * ipr_slave_alloc - Prepare for commands to a device.
4954 * @sdev: scsi device struct
4955 *
4956 * This function saves a pointer to the resource entry
4957 * in the scsi device struct if the device exists. We
4958 * can then use this pointer in ipr_queuecommand when
4959 * handling new commands.
4960 *
4961 * Return value:
692aebfc 4962 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4963 **/
4964static int ipr_slave_alloc(struct scsi_device *sdev)
4965{
4966 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4967 struct ipr_resource_entry *res;
4968 unsigned long lock_flags;
692aebfc 4969 int rc = -ENXIO;
1da177e4
LT		 4970
4971 sdev->hostdata = NULL;
4972
4973 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4974
35a39691
BK		 4975 res = ipr_find_sdev(sdev);
4976 if (res) {
4977 res->sdev = sdev;
4978 res->add_to_ml = 0;
4979 res->in_erp = 0;
4980 sdev->hostdata = res;
4981 if (!ipr_is_naca_model(res))
4982 res->needs_sync_complete = 1;
4983 rc = 0;
4984 if (ipr_is_gata(res)) {
4985 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4986 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4987 }
4988 }
4989
4990 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4991
692aebfc 4992 return rc;
1da177e4
LT		 4993}
4994
6cdb0817
BK		 4995/**
4996 * ipr_match_lun - Match function for specified LUN
4997 * @ipr_cmd: ipr command struct
4998 * @device: device to match (sdev)
4999 *
5000 * Returns:
5001 * 1 if command matches sdev / 0 if command does not match sdev
5002 **/
5003static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device)
5004{
5005 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device)
5006 return 1;
5007 return 0;
5008}
5009
5010/**
5011 * ipr_wait_for_ops - Wait for matching commands to complete
5012 * @ipr_cmd: ipr command struct
5013 * @device: device to match (sdev)
5014 * @match: match function to use
5015 *
5016 * Returns:
5017 * SUCCESS / FAILED
5018 **/
5019static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device,
5020 int (*match)(struct ipr_cmnd *, void *))
5021{
5022 struct ipr_cmnd *ipr_cmd;
5023 int wait;
5024 unsigned long flags;
5025 struct ipr_hrr_queue *hrrq;
5026 signed long timeout = IPR_ABORT_TASK_TIMEOUT;
5027 DECLARE_COMPLETION_ONSTACK(comp);
5028
5029 ENTER;
5030 do {
5031 wait = 0;
5032
5033 for_each_hrrq(hrrq, ioa_cfg) {
5034 spin_lock_irqsave(hrrq->lock, flags);
5035 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5036 if (match(ipr_cmd, device)) {
5037 ipr_cmd->eh_comp = &comp;
5038 wait++;
5039 }
5040 }
5041 spin_unlock_irqrestore(hrrq->lock, flags);
5042 }
5043
5044 if (wait) {
5045 timeout = wait_for_completion_timeout(&comp, timeout);
5046
5047 if (!timeout) {
5048 wait = 0;
5049
5050 for_each_hrrq(hrrq, ioa_cfg) {
5051 spin_lock_irqsave(hrrq->lock, flags);
5052 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5053 if (match(ipr_cmd, device)) {
5054 ipr_cmd->eh_comp = NULL;
5055 wait++;
5056 }
5057 }
5058 spin_unlock_irqrestore(hrrq->lock, flags);
5059 }
5060
5061 if (wait)
5062 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n");
5063 LEAVE;
5064 return wait ? FAILED : SUCCESS;
5065 }
5066 }
5067 } while (wait);
5068
5069 LEAVE;
5070 return SUCCESS;
5071}
5072
70233ac5 5073static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 5074{
5075 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 5076 unsigned long lock_flags = 0;
5077 int rc = SUCCESS;
1da177e4
LT		 5078
5079 ENTER;
70233ac5 5080 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
5081 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 5082
96b04db9 5083 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 5084 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 5085 dev_err(&ioa_cfg->pdev->dev,
5086 "Adapter being reset as a result of error recovery.\n");
1da177e4 5087
a92fa25c
KSS		 5088 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5089 ioa_cfg->sdt_state = GET_DUMP;
5090 }
1da177e4 5091
70233ac5 5092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5093 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5094 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 5095
70233ac5 5096 /* If we got hit with a host reset while we were already resetting
5097 the adapter for some reason, and the reset failed. */
5098 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
5099 ipr_trace;
5100 rc = FAILED;
5101 }
df0ae249 5102
70233ac5 5103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5104 LEAVE;
df0ae249
JG		 5105 return rc;
5106}
5107
c6513096
BK		 5108/**
5109 * ipr_device_reset - Reset the device
5110 * @ioa_cfg: ioa config struct
5111 * @res: resource entry struct
5112 *
5113 * This function issues a device reset to the affected device.
5114 * If the device is a SCSI device, a LUN reset will be sent
5115 * to the device first. If that does not work, a target reset
35a39691
BK		 5116 * will be sent. If the device is a SATA device, a PHY reset will
5117 * be sent.
c6513096
BK		 5118 *
5119 * Return value:
5120 * 0 on success / non-zero on failure
5121 **/
5122static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
5123 struct ipr_resource_entry *res)
5124{
5125 struct ipr_cmnd *ipr_cmd;
5126 struct ipr_ioarcb *ioarcb;
5127 struct ipr_cmd_pkt *cmd_pkt;
35a39691 5128 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 5129 u32 ioasc;
5130
5131 ENTER;
5132 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5133 ioarcb = &ipr_cmd->ioarcb;
5134 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 5135
5136 if (ipr_cmd->ioa_cfg->sis64) {
5137 regs = &ipr_cmd->i.ata_ioadl.regs;
5138 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5139 } else
5140 regs = &ioarcb->u.add_data.u.regs;
c6513096 5141
3e7ebdfa 5142 ioarcb->res_handle = res->res_handle;
c6513096
BK		 5143 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5144 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 5145 if (ipr_is_gata(res)) {
5146 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 5147 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 5148 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5149 }
c6513096
BK		 5150
5151 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 5152 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 5153 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 5154 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
5155 if (ipr_cmd->ioa_cfg->sis64)
5156 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5157 sizeof(struct ipr_ioasa_gata));
5158 else
5159 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5160 sizeof(struct ipr_ioasa_gata));
5161 }
c6513096
BK		 5162
5163 LEAVE;
203fa3fe 5164 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 5165}
5166
35a39691
BK		 5167/**
5168 * ipr_sata_reset - Reset the SATA port
cc0680a5 5169 * @link: SATA link to reset
35a39691
BK		 5170 * @classes: class of the attached device
5171 *
cc0680a5 5172 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 5173 *
5174 * Return value:
5175 * 0 on success / non-zero on failure
5176 **/
cc0680a5 5177static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 5178 unsigned long deadline)
35a39691 5179{
cc0680a5 5180 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 5181 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5182 struct ipr_resource_entry *res;
5183 unsigned long lock_flags = 0;
5184 int rc = -ENXIO;
5185
5186 ENTER;
5187 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 5188 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 5189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5190 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5192 }
5193
35a39691
BK		 5194 res = sata_port->res;
5195 if (res) {
5196 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 5197 *classes = res->ata_class;
35a39691
BK		 5198 }
5199
5200 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5201 LEAVE;
5202 return rc;
5203}
5204
1da177e4
LT		 5205/**
5206 * ipr_eh_dev_reset - Reset the device
5207 * @scsi_cmd: scsi command struct
5208 *
5209 * This function issues a device reset to the affected device.
5210 * A LUN reset will be sent to the device first. If that does
5211 * not work, a target reset will be sent.
5212 *
5213 * Return value:
5214 * SUCCESS / FAILED
5215 **/
203fa3fe 5216static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5217{
5218 struct ipr_cmnd *ipr_cmd;
5219 struct ipr_ioa_cfg *ioa_cfg;
5220 struct ipr_resource_entry *res;
35a39691
BK		 5221 struct ata_port *ap;
5222 int rc = 0;
05a6538a 5223 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5224
5225 ENTER;
5226 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5227 res = scsi_cmd->device->hostdata;
5228
eeb88307 5229 if (!res)
1da177e4
LT		 5230 return FAILED;
5231
5232 /*
5233 * If we are currently going through reset/reload, return failed. This will force the
5234 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5235 * reset to complete
5236 */
5237 if (ioa_cfg->in_reset_reload)
5238 return FAILED;
56d6aa33 5239 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5240 return FAILED;
5241
05a6538a 5242 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5243 spin_lock(&hrrq->_lock);
05a6538a 5244 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5245 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
960e9648
BK		 5246 if (!ipr_cmd->qc)
5247 continue;
5248
5249 ipr_cmd->done = ipr_sata_eh_done;
5250 if (!(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
05a6538a 5251 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5252 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5253 }
7402ecef 5254 }
1da177e4 5255 }
56d6aa33 5256 spin_unlock(&hrrq->_lock);
1da177e4 5257 }
1da177e4 5258 res->resetting_device = 1;
fb3ed3cb 5259 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5260
5261 if (ipr_is_gata(res) && res->sata_port) {
5262 ap = res->sata_port->ap;
5263 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5264 ata_std_error_handler(ap);
35a39691 5265 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5266
05a6538a 5267 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5268 spin_lock(&hrrq->_lock);
05a6538a 5269 list_for_each_entry(ipr_cmd,
5270 &hrrq->hrrq_pending_q, queue) {
5271 if (ipr_cmd->ioarcb.res_handle ==
5272 res->res_handle) {
5273 rc = -EIO;
5274 break;
5275 }
5af23d26 5276 }
56d6aa33 5277 spin_unlock(&hrrq->_lock);
5af23d26 5278 }
35a39691
BK		 5279 } else
5280 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5281 res->resetting_device = 0;
0b1f8d44 5282 res->reset_occurred = 1;
1da177e4 5283
1da177e4 5284 LEAVE;
203fa3fe 5285 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5286}
5287
203fa3fe 5288static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5289{
5290 int rc;
6cdb0817
BK		 5291 struct ipr_ioa_cfg *ioa_cfg;
5292
5293 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
94d0e7b8
JG		 5294
5295 spin_lock_irq(cmd->device->host->host_lock);
5296 rc = __ipr_eh_dev_reset(cmd);
5297 spin_unlock_irq(cmd->device->host->host_lock);
5298
6cdb0817
BK		 5299 if (rc == SUCCESS)
5300 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun);
5301
94d0e7b8
JG		 5302 return rc;
5303}
5304
1da177e4
LT		 5305/**
5306 * ipr_bus_reset_done - Op done function for bus reset.
5307 * @ipr_cmd: ipr command struct
5308 *
5309 * This function is the op done function for a bus reset
5310 *
5311 * Return value:
5312 * none
5313 **/
5314static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5315{
5316 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5317 struct ipr_resource_entry *res;
5318
5319 ENTER;
3e7ebdfa
WB		 5320 if (!ioa_cfg->sis64)
5321 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5322 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5323 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5324 break;
5325 }
1da177e4 5326 }
1da177e4
LT		 5327
5328 /*
5329 * If abort has not completed, indicate the reset has, else call the
5330 * abort's done function to wake the sleeping eh thread
5331 */
5332 if (ipr_cmd->sibling->sibling)
5333 ipr_cmd->sibling->sibling = NULL;
5334 else
5335 ipr_cmd->sibling->done(ipr_cmd->sibling);
5336
05a6538a 5337 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5338 LEAVE;
5339}
5340
5341/**
5342 * ipr_abort_timeout - An abort task has timed out
5343 * @ipr_cmd: ipr command struct
5344 *
5345 * This function handles when an abort task times out. If this
5346 * happens we issue a bus reset since we have resources tied
5347 * up that must be freed before returning to the midlayer.
5348 *
5349 * Return value:
5350 * none
5351 **/
5352static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5353{
5354 struct ipr_cmnd *reset_cmd;
5355 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5356 struct ipr_cmd_pkt *cmd_pkt;
5357 unsigned long lock_flags = 0;
5358
5359 ENTER;
5360 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5361 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5363 return;
5364 }
5365
fb3ed3cb 5366 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5367 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5368 ipr_cmd->sibling = reset_cmd;
5369 reset_cmd->sibling = ipr_cmd;
5370 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5371 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5372 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5373 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5374 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5375
5376 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5377 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5378 LEAVE;
5379}
5380
5381/**
5382 * ipr_cancel_op - Cancel specified op
5383 * @scsi_cmd: scsi command struct
5384 *
5385 * This function cancels specified op.
5386 *
5387 * Return value:
5388 * SUCCESS / FAILED
5389 **/
203fa3fe 5390static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5391{
5392 struct ipr_cmnd *ipr_cmd;
5393 struct ipr_ioa_cfg *ioa_cfg;
5394 struct ipr_resource_entry *res;
5395 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5396 u32 ioasc, int_reg;
1da177e4 5397 int op_found = 0;
05a6538a 5398 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5399
5400 ENTER;
5401 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5402 res = scsi_cmd->device->hostdata;
5403
8fa728a2
JG		 5404 /* If we are currently going through reset/reload, return failed.
5405 * This will force the mid-layer to call ipr_eh_host_reset,
5406 * which will then go to sleep and wait for the reset to complete
5407 */
56d6aa33 5408 if (ioa_cfg->in_reset_reload ||
5409 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5410 return FAILED;
a92fa25c
KSS		 5411 if (!res)
5412 return FAILED;
5413
5414 /*
5415 * If we are aborting a timed out op, chances are that the timeout was caused
5416 * by a still not detected EEH error. In such cases, reading a register will
5417 * trigger the EEH recovery infrastructure.
5418 */
5419 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5420
5421 if (!ipr_is_gscsi(res))
1da177e4
LT		 5422 return FAILED;
5423
05a6538a 5424 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5425 spin_lock(&hrrq->_lock);
05a6538a 5426 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5427 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5428 ipr_cmd->done = ipr_scsi_eh_done;
5429 op_found = 1;
5430 break;
5431 }
1da177e4 5432 }
56d6aa33 5433 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5434 }
5435
5436 if (!op_found)
5437 return SUCCESS;
5438
5439 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5440 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5441 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5442 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5443 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5444 ipr_cmd->u.sdev = scsi_cmd->device;
5445
fb3ed3cb
BK		 5446 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5447 scsi_cmd->cmnd[0]);
1da177e4 5448 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5449 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5450
5451 /*
5452 * If the abort task timed out and we sent a bus reset, we will get
5453 * one the following responses to the abort
5454 */
5455 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5456 ioasc = 0;
5457 ipr_trace;
5458 }
5459
c4ee22a3 5460 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa
BK		 5461 if (!ipr_is_naca_model(res))
5462 res->needs_sync_complete = 1;
1da177e4
LT		 5463
5464 LEAVE;
203fa3fe 5465 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5466}
5467
5468/**
5469 * ipr_eh_abort - Abort a single op
5470 * @scsi_cmd: scsi command struct
5471 *
5472 * Return value:
f688f96d
BK		 5473 * 0 if scan in progress / 1 if scan is complete
5474 **/
5475static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
5476{
5477 unsigned long lock_flags;
5478 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
5479 int rc = 0;
5480
5481 spin_lock_irqsave(shost->host_lock, lock_flags);
5482 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
5483 rc = 1;
5484 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
5485 rc = 1;
5486 spin_unlock_irqrestore(shost->host_lock, lock_flags);
5487 return rc;
5488}
5489
5490/**
5491 * ipr_eh_host_reset - Reset the host adapter
5492 * @scsi_cmd: scsi command struct
5493 *
5494 * Return value:
1da177e4
LT		 5495 * SUCCESS / FAILED
5496 **/
203fa3fe 5497static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5498{
8fa728a2
JG		 5499 unsigned long flags;
5500 int rc;
6cdb0817 5501 struct ipr_ioa_cfg *ioa_cfg;
1da177e4
LT		 5502
5503 ENTER;
1da177e4 5504
6cdb0817
BK		 5505 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5506
8fa728a2
JG		 5507 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5508 rc = ipr_cancel_op(scsi_cmd);
5509 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4 5510
6cdb0817
BK		 5511 if (rc == SUCCESS)
5512 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun);
1da177e4 5513 LEAVE;
8fa728a2 5514 return rc;
1da177e4
LT		 5515}
5516
5517/**
5518 * ipr_handle_other_interrupt - Handle "other" interrupts
5519 * @ioa_cfg: ioa config struct
634651fa 5520 * @int_reg: interrupt register
1da177e4
LT		 5521 *
5522 * Return value:
5523 * IRQ_NONE / IRQ_HANDLED
5524 **/
634651fa 5525static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5526 u32 int_reg)
1da177e4
LT		 5527{
5528 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5529 u32 int_mask_reg;
56d6aa33 5530
7dacb64f
WB		 5531 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5532 int_reg &= ~int_mask_reg;
5533
5534 /* If an interrupt on the adapter did not occur, ignore it.
5535 * Or in the case of SIS 64, check for a stage change interrupt.
5536 */
5537 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5538 if (ioa_cfg->sis64) {
5539 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5540 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5541 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5542
5543 /* clear stage change */
5544 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5545 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5546 list_del(&ioa_cfg->reset_cmd->queue);
5547 del_timer(&ioa_cfg->reset_cmd->timer);
5548 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5549 return IRQ_HANDLED;
5550 }
5551 }
5552
5553 return IRQ_NONE;
5554 }
1da177e4
LT		 5555
5556 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5557 /* Mask the interrupt */
5558 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 5559 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5560
5561 list_del(&ioa_cfg->reset_cmd->queue);
5562 del_timer(&ioa_cfg->reset_cmd->timer);
5563 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5564 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5565 if (ioa_cfg->clear_isr) {
5566 if (ipr_debug && printk_ratelimit())
5567 dev_err(&ioa_cfg->pdev->dev,
5568 "Spurious interrupt detected. 0x%08X\n", int_reg);
5569 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5570 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5571 return IRQ_NONE;
5572 }
1da177e4
LT		 5573 } else {
5574 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5575 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5576 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5577 dev_err(&ioa_cfg->pdev->dev,
5578 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5579 else
5580 dev_err(&ioa_cfg->pdev->dev,
5581 "Permanent IOA failure. 0x%08X\n", int_reg);
5582
5583 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5584 ioa_cfg->sdt_state = GET_DUMP;
5585
5586 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5587 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5588 }
56d6aa33 5589
1da177e4
LT		 5590 return rc;
5591}
5592
3feeb89d
WB		 5593/**
5594 * ipr_isr_eh - Interrupt service routine error handler
5595 * @ioa_cfg: ioa config struct
5596 * @msg: message to log
5597 *
5598 * Return value:
5599 * none
5600 **/
05a6538a 5601static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5602{
5603 ioa_cfg->errors_logged++;
05a6538a 5604 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5605
5606 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5607 ioa_cfg->sdt_state = GET_DUMP;
5608
5609 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5610}
5611
b53d124a 5612static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5613 struct list_head *doneq)
5614{
5615 u32 ioasc;
5616 u16 cmd_index;
5617 struct ipr_cmnd *ipr_cmd;
5618 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5619 int num_hrrq = 0;
5620
5621 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5622 if (!hrr_queue->allow_interrupts)
05a6538a 5623 return 0;
5624
5625 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5626 hrr_queue->toggle_bit) {
5627
5628 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5629 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5630 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5631
5632 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5633 cmd_index < hrr_queue->min_cmd_id)) {
5634 ipr_isr_eh(ioa_cfg,
5635 "Invalid response handle from IOA: ",
5636 cmd_index);
5637 break;
5638 }
5639
5640 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5641 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5642
5643 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5644
5645 list_move_tail(&ipr_cmd->queue, doneq);
5646
5647 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5648 hrr_queue->hrrq_curr++;
5649 } else {
5650 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5651 hrr_queue->toggle_bit ^= 1u;
5652 }
5653 num_hrrq++;
b53d124a 5654 if (budget > 0 && num_hrrq >= budget)
5655 break;
05a6538a 5656 }
b53d124a 5657
05a6538a 5658 return num_hrrq;
5659}
b53d124a 5660
511cbce2 5661static int ipr_iopoll(struct irq_poll *iop, int budget)
b53d124a 5662{
5663 struct ipr_ioa_cfg *ioa_cfg;
5664 struct ipr_hrr_queue *hrrq;
5665 struct ipr_cmnd *ipr_cmd, *temp;
5666 unsigned long hrrq_flags;
5667 int completed_ops;
5668 LIST_HEAD(doneq);
5669
5670 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5671 ioa_cfg = hrrq->ioa_cfg;
5672
5673 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5674 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5675
5676 if (completed_ops < budget)
511cbce2 5677 irq_poll_complete(iop);
b53d124a 5678 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5679
5680 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5681 list_del(&ipr_cmd->queue);
5682 del_timer(&ipr_cmd->timer);
5683 ipr_cmd->fast_done(ipr_cmd);
5684 }
5685
5686 return completed_ops;
5687}
5688
1da177e4
LT		 5689/**
5690 * ipr_isr - Interrupt service routine
5691 * @irq: irq number
5692 * @devp: pointer to ioa config struct
1da177e4
LT		 5693 *
5694 * Return value:
5695 * IRQ_NONE / IRQ_HANDLED
5696 **/
7d12e780 5697static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5698{
05a6538a 5699 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5700 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5701 unsigned long hrrq_flags = 0;
7dacb64f 5702 u32 int_reg = 0;
3feeb89d 5703 int num_hrrq = 0;
7dacb64f 5704 int irq_none = 0;
172cd6e1 5705 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5706 irqreturn_t rc = IRQ_NONE;
172cd6e1 5707 LIST_HEAD(doneq);
1da177e4 5708
56d6aa33 5709 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5710 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5711 if (!hrrq->allow_interrupts) {
5712 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5713 return IRQ_NONE;
5714 }
5715
1da177e4 5716 while (1) {
b53d124a 5717 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5718 rc = IRQ_HANDLED;
1da177e4 5719
b53d124a 5720 if (!ioa_cfg->clear_isr)
5721 break;
7dd21308 5722
1da177e4 5723 /* Clear the PCI interrupt */
a5442ba4 5724 num_hrrq = 0;
3feeb89d 5725 do {
b53d124a 5726 writel(IPR_PCII_HRRQ_UPDATED,
5727 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5728 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5729 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5730 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5731
7dacb64f
WB		 5732 } else if (rc == IRQ_NONE && irq_none == 0) {
5733 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5734 irq_none++;
a5442ba4
WB		 5735 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5736 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5737 ipr_isr_eh(ioa_cfg,
5738 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5739 rc = IRQ_HANDLED;
b53d124a 5740 break;
1da177e4
LT		 5741 } else
5742 break;
5743 }
5744
5745 if (unlikely(rc == IRQ_NONE))
634651fa 5746 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5747
56d6aa33 5748 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5749 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5750 list_del(&ipr_cmd->queue);
5751 del_timer(&ipr_cmd->timer);
5752 ipr_cmd->fast_done(ipr_cmd);
5753 }
05a6538a 5754 return rc;
5755}
5756
5757/**
5758 * ipr_isr_mhrrq - Interrupt service routine
5759 * @irq: irq number
5760 * @devp: pointer to ioa config struct
5761 *
5762 * Return value:
5763 * IRQ_NONE / IRQ_HANDLED
5764 **/
5765static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5766{
5767 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5768 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5769 unsigned long hrrq_flags = 0;
05a6538a 5770 struct ipr_cmnd *ipr_cmd, *temp;
5771 irqreturn_t rc = IRQ_NONE;
5772 LIST_HEAD(doneq);
172cd6e1 5773
56d6aa33 5774 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5775
5776 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5777 if (!hrrq->allow_interrupts) {
5778 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5779 return IRQ_NONE;
5780 }
5781
89f8b33c 5782 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5783 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5784 hrrq->toggle_bit) {
ea51190c 5785 irq_poll_sched(&hrrq->iopoll);
b53d124a 5786 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5787 return IRQ_HANDLED;
5788 }
5789 } else {
5790 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5791 hrrq->toggle_bit)
05a6538a 5792
b53d124a 5793 if (ipr_process_hrrq(hrrq, -1, &doneq))
5794 rc = IRQ_HANDLED;
5795 }
05a6538a 5796
56d6aa33 5797 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5798
5799 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5800 list_del(&ipr_cmd->queue);
5801 del_timer(&ipr_cmd->timer);
5802 ipr_cmd->fast_done(ipr_cmd);
5803 }
1da177e4
LT		 5804 return rc;
5805}
5806
a32c055f
WB		 5807/**
5808 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5809 * @ioa_cfg: ioa config struct
5810 * @ipr_cmd: ipr command struct
5811 *
5812 * Return value:
5813 * 0 on success / -1 on failure
5814 **/
5815static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5816 struct ipr_cmnd *ipr_cmd)
5817{
5818 int i, nseg;
5819 struct scatterlist *sg;
5820 u32 length;
5821 u32 ioadl_flags = 0;
5822 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5823 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5824 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5825
5826 length = scsi_bufflen(scsi_cmd);
5827 if (!length)
5828 return 0;
5829
5830 nseg = scsi_dma_map(scsi_cmd);
5831 if (nseg < 0) {
51f52a47 5832 if (printk_ratelimit())
d73341bf 5833 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5834 return -1;
5835 }
5836
5837 ipr_cmd->dma_use_sg = nseg;
5838
438b0331 5839 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5840 ioarcb->ioadl_len =
5841 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5842
a32c055f
WB		 5843 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5844 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5845 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5846 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5847 ioadl_flags = IPR_IOADL_FLAGS_READ;
5848
5849 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5850 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5851 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5852 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5853 }
5854
5855 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5856 return 0;
5857}
5858
1da177e4
LT		 5859/**
5860 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5861 * @ioa_cfg: ioa config struct
5862 * @ipr_cmd: ipr command struct
5863 *
5864 * Return value:
5865 * 0 on success / -1 on failure
5866 **/
5867static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5868 struct ipr_cmnd *ipr_cmd)
5869{
63015bc9
FT		 5870 int i, nseg;
5871 struct scatterlist *sg;
1da177e4
LT		 5872 u32 length;
5873 u32 ioadl_flags = 0;
5874 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5875 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5876 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5877
63015bc9
FT		 5878 length = scsi_bufflen(scsi_cmd);
5879 if (!length)
1da177e4
LT		 5880 return 0;
5881
63015bc9
FT		 5882 nseg = scsi_dma_map(scsi_cmd);
5883 if (nseg < 0) {
d73341bf 5884 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5885 return -1;
5886 }
51b1c7e1 5887
63015bc9
FT		 5888 ipr_cmd->dma_use_sg = nseg;
5889
5890 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5891 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5892 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5893 ioarcb->data_transfer_length = cpu_to_be32(length);
5894 ioarcb->ioadl_len =
63015bc9
FT		 5895 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5896 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5897 ioadl_flags = IPR_IOADL_FLAGS_READ;
5898 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5899 ioarcb->read_ioadl_len =
5900 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5901 }
1da177e4 5902
a32c055f
WB		 5903 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5904 ioadl = ioarcb->u.add_data.u.ioadl;
5905 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5906 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5907 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5908 }
1da177e4 5909
63015bc9
FT		 5910 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5911 ioadl[i].flags_and_data_len =
5912 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5913 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5914 }
5915
63015bc9
FT		 5916 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5917 return 0;
1da177e4
LT		 5918}
5919
1da177e4
LT		 5920/**
5921 * ipr_erp_done - Process completion of ERP for a device
5922 * @ipr_cmd: ipr command struct
5923 *
5924 * This function copies the sense buffer into the scsi_cmd
5925 * struct and pushes the scsi_done function.
5926 *
5927 * Return value:
5928 * nothing
5929 **/
5930static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5931{
5932 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5933 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5934 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5935
5936 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5937 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5938 scmd_printk(KERN_ERR, scsi_cmd,
5939 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5940 } else {
5941 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5942 SCSI_SENSE_BUFFERSIZE);
5943 }
5944
5945 if (res) {
ee0a90fa
BK		 5946 if (!ipr_is_naca_model(res))
5947 res->needs_sync_complete = 1;
1da177e4
LT		 5948 res->in_erp = 0;
5949 }
63015bc9 5950 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 5951 scsi_cmd->scsi_done(scsi_cmd);
66a0d59c
BK		 5952 if (ipr_cmd->eh_comp)
5953 complete(ipr_cmd->eh_comp);
5954 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5955}
5956
5957/**
5958 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5959 * @ipr_cmd: ipr command struct
5960 *
5961 * Return value:
5962 * none
5963 **/
5964static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5965{
51b1c7e1 5966 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5967 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5968 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5969
5970 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5971 ioarcb->data_transfer_length = 0;
1da177e4 5972 ioarcb->read_data_transfer_length = 0;
a32c055f 5973 ioarcb->ioadl_len = 0;
1da177e4 5974 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5975 ioasa->hdr.ioasc = 0;
5976 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5977
5978 if (ipr_cmd->ioa_cfg->sis64)
5979 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5980 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5981 else {
5982 ioarcb->write_ioadl_addr =
5983 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5984 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5985 }
1da177e4
LT		 5986}
5987
5988/**
5989 * ipr_erp_request_sense - Send request sense to a device
5990 * @ipr_cmd: ipr command struct
5991 *
5992 * This function sends a request sense to a device as a result
5993 * of a check condition.
5994 *
5995 * Return value:
5996 * nothing
5997 **/
5998static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5999{
6000 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 6001 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 6002
6003 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
6004 ipr_erp_done(ipr_cmd);
6005 return;
6006 }
6007
6008 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6009
6010 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
6011 cmd_pkt->cdb[0] = REQUEST_SENSE;
6012 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
6013 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
6014 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6015 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
6016
a32c055f
WB		 6017 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
6018 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 6019
6020 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
6021 IPR_REQUEST_SENSE_TIMEOUT * 2);
6022}
6023
6024/**
6025 * ipr_erp_cancel_all - Send cancel all to a device
6026 * @ipr_cmd: ipr command struct
6027 *
6028 * This function sends a cancel all to a device to clear the
6029 * queue. If we are running TCQ on the device, QERR is set to 1,
6030 * which means all outstanding ops have been dropped on the floor.
6031 * Cancel all will return them to us.
6032 *
6033 * Return value:
6034 * nothing
6035 **/
6036static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
6037{
6038 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6039 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
6040 struct ipr_cmd_pkt *cmd_pkt;
6041
6042 res->in_erp = 1;
6043
6044 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
6045
17ea0126 6046 if (!scsi_cmd->device->simple_tags) {
1da177e4
LT		 6047 ipr_erp_request_sense(ipr_cmd);
6048 return;
6049 }
6050
6051 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
6052 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
6053 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
6054
6055 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
6056 IPR_CANCEL_ALL_TIMEOUT);
6057}
6058
6059/**
6060 * ipr_dump_ioasa - Dump contents of IOASA
6061 * @ioa_cfg: ioa config struct
6062 * @ipr_cmd: ipr command struct
fe964d0a 6063 * @res: resource entry struct
1da177e4
LT		 6064 *
6065 * This function is invoked by the interrupt handler when ops
6066 * fail. It will log the IOASA if appropriate. Only called
6067 * for GPDD ops.
6068 *
6069 * Return value:
6070 * none
6071 **/
6072static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 6073 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 6074{
6075 int i;
6076 u16 data_len;
b0692dd4 6077 u32 ioasc, fd_ioasc;
96d21f00 6078 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 6079 __be32 *ioasa_data = (__be32 *)ioasa;
6080 int error_index;
6081
96d21f00
WB		 6082 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
6083 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6084
6085 if (0 == ioasc)
6086 return;
6087
6088 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
6089 return;
6090
b0692dd4
BK		 6091 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
6092 error_index = ipr_get_error(fd_ioasc);
6093 else
6094 error_index = ipr_get_error(ioasc);
1da177e4
LT		 6095
6096 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
6097 /* Don't log an error if the IOA already logged one */
96d21f00 6098 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 6099 return;
6100
cc9bd5d4
BK		 6101 if (!ipr_is_gscsi(res))
6102 return;
6103
1da177e4
LT		 6104 if (ipr_error_table[error_index].log_ioasa == 0)
6105 return;
6106 }
6107
fe964d0a 6108 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 6109
96d21f00
WB		 6110 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
6111 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
6112 data_len = sizeof(struct ipr_ioasa64);
6113 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 6114 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 6115
6116 ipr_err("IOASA Dump:\n");
6117
6118 for (i = 0; i < data_len / 4; i += 4) {
6119 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
6120 be32_to_cpu(ioasa_data[i]),
6121 be32_to_cpu(ioasa_data[i+1]),
6122 be32_to_cpu(ioasa_data[i+2]),
6123 be32_to_cpu(ioasa_data[i+3]));
6124 }
6125}
6126
6127/**
6128 * ipr_gen_sense - Generate SCSI sense data from an IOASA
6129 * @ioasa: IOASA
6130 * @sense_buf: sense data buffer
6131 *
6132 * Return value:
6133 * none
6134 **/
6135static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
6136{
6137 u32 failing_lba;
6138 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
6139 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 6140 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6141 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 6142
6143 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
6144
6145 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
6146 return;
6147
6148 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
6149
6150 if (ipr_is_vset_device(res) &&
6151 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
6152 ioasa->u.vset.failing_lba_hi != 0) {
6153 sense_buf[0] = 0x72;
6154 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
6155 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
6156 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
6157
6158 sense_buf[7] = 12;
6159 sense_buf[8] = 0;
6160 sense_buf[9] = 0x0A;
6161 sense_buf[10] = 0x80;
6162
6163 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
6164
6165 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
6166 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
6167 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
6168 sense_buf[15] = failing_lba & 0x000000ff;
6169
6170 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6171
6172 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
6173 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
6174 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
6175 sense_buf[19] = failing_lba & 0x000000ff;
6176 } else {
6177 sense_buf[0] = 0x70;
6178 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
6179 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
6180 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
6181
6182 /* Illegal request */
6183 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 6184 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 6185 sense_buf[7] = 10; /* additional length */
6186
6187 /* IOARCB was in error */
6188 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
6189 sense_buf[15] = 0xC0;
6190 else /* Parameter data was invalid */
6191 sense_buf[15] = 0x80;
6192
6193 sense_buf[16] =
6194 ((IPR_FIELD_POINTER_MASK &
96d21f00 6195 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 6196 sense_buf[17] =
6197 (IPR_FIELD_POINTER_MASK &
96d21f00 6198 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 6199 } else {
6200 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
6201 if (ipr_is_vset_device(res))
6202 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
6203 else
6204 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
6205
6206 sense_buf[0] |= 0x80; /* Or in the Valid bit */
6207 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
6208 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
6209 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
6210 sense_buf[6] = failing_lba & 0x000000ff;
6211 }
6212
6213 sense_buf[7] = 6; /* additional length */
6214 }
6215 }
6216}
6217
ee0a90fa
BK		 6218/**
6219 * ipr_get_autosense - Copy autosense data to sense buffer
6220 * @ipr_cmd: ipr command struct
6221 *
6222 * This function copies the autosense buffer to the buffer
6223 * in the scsi_cmd, if there is autosense available.
6224 *
6225 * Return value:
6226 * 1 if autosense was available / 0 if not
6227 **/
6228static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6229{
96d21f00
WB		 6230 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6231 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 6232
96d21f00 6233 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 6234 return 0;
6235
96d21f00
WB		 6236 if (ipr_cmd->ioa_cfg->sis64)
6237 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6238 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6239 SCSI_SENSE_BUFFERSIZE));
6240 else
6241 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6242 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6243 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 6244 return 1;
6245}
6246
1da177e4
LT		 6247/**
6248 * ipr_erp_start - Process an error response for a SCSI op
6249 * @ioa_cfg: ioa config struct
6250 * @ipr_cmd: ipr command struct
6251 *
6252 * This function determines whether or not to initiate ERP
6253 * on the affected device.
6254 *
6255 * Return value:
6256 * nothing
6257 **/
6258static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6259 struct ipr_cmnd *ipr_cmd)
6260{
6261 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6262 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6263 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6264 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6265
6266 if (!res) {
6267 ipr_scsi_eh_done(ipr_cmd);
6268 return;
6269 }
6270
8a048994 6271 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6272 ipr_gen_sense(ipr_cmd);
6273
cc9bd5d4
BK		 6274 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6275
8a048994 6276 switch (masked_ioasc) {
1da177e4 6277 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 6278 if (ipr_is_naca_model(res))
6279 scsi_cmd->result |= (DID_ABORT << 16);
6280 else
6281 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6282 break;
6283 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6284 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6285 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6286 break;
6287 case IPR_IOASC_HW_SEL_TIMEOUT:
6288 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 6289 if (!ipr_is_naca_model(res))
6290 res->needs_sync_complete = 1;
1da177e4
LT		 6291 break;
6292 case IPR_IOASC_SYNC_REQUIRED:
6293 if (!res->in_erp)
6294 res->needs_sync_complete = 1;
6295 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6296 break;
6297 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6298 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6299 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6300 break;
6301 case IPR_IOASC_BUS_WAS_RESET:
6302 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6303 /*
6304 * Report the bus reset and ask for a retry. The device
6305 * will give CC/UA the next command.
6306 */
6307 if (!res->resetting_device)
6308 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6309 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 6310 if (!ipr_is_naca_model(res))
6311 res->needs_sync_complete = 1;
1da177e4
LT		 6312 break;
6313 case IPR_IOASC_HW_DEV_BUS_STATUS:
6314 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6315 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 6316 if (!ipr_get_autosense(ipr_cmd)) {
6317 if (!ipr_is_naca_model(res)) {
6318 ipr_erp_cancel_all(ipr_cmd);
6319 return;
6320 }
6321 }
1da177e4 6322 }
ee0a90fa
BK		 6323 if (!ipr_is_naca_model(res))
6324 res->needs_sync_complete = 1;
1da177e4
LT		 6325 break;
6326 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6327 break;
f8ee25d7
WX		 6328 case IPR_IOASC_IR_NON_OPTIMIZED:
6329 if (res->raw_mode) {
6330 res->raw_mode = 0;
6331 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6332 } else
6333 scsi_cmd->result |= (DID_ERROR << 16);
6334 break;
1da177e4 6335 default:
5b7304fb
BK		 6336 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6337 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6338 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6339 res->needs_sync_complete = 1;
6340 break;
6341 }
6342
63015bc9 6343 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 6344 scsi_cmd->scsi_done(scsi_cmd);
66a0d59c
BK		 6345 if (ipr_cmd->eh_comp)
6346 complete(ipr_cmd->eh_comp);
6347 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6348}
6349
6350/**
6351 * ipr_scsi_done - mid-layer done function
6352 * @ipr_cmd: ipr command struct
6353 *
6354 * This function is invoked by the interrupt handler for
6355 * ops generated by the SCSI mid-layer
6356 *
6357 * Return value:
6358 * none
6359 **/
6360static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6361{
6362 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6363 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6364 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
36b8e180 6365 unsigned long lock_flags;
1da177e4 6366
96d21f00 6367 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6368
6369 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6370 scsi_dma_unmap(scsi_cmd);
6371
36b8e180 6372 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags);
1da177e4 6373 scsi_cmd->scsi_done(scsi_cmd);
66a0d59c
BK		 6374 if (ipr_cmd->eh_comp)
6375 complete(ipr_cmd->eh_comp);
6376 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
36b8e180 6377 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags);
172cd6e1 6378 } else {
36b8e180
BK		 6379 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6380 spin_lock(&ipr_cmd->hrrq->_lock);
1da177e4 6381 ipr_erp_start(ioa_cfg, ipr_cmd);
36b8e180
BK		 6382 spin_unlock(&ipr_cmd->hrrq->_lock);
6383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
172cd6e1 6384 }
1da177e4
LT		 6385}
6386
1da177e4
LT		 6387/**
6388 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6389 * @shost: scsi host struct
1da177e4 6390 * @scsi_cmd: scsi command struct
1da177e4
LT		 6391 *
6392 * This function queues a request generated by the mid-layer.
6393 *
6394 * Return value:
6395 * 0 on success
6396 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6397 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6398 **/
00bfef2c
BK		 6399static int ipr_queuecommand(struct Scsi_Host *shost,
6400 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6401{
6402 struct ipr_ioa_cfg *ioa_cfg;
6403 struct ipr_resource_entry *res;
6404 struct ipr_ioarcb *ioarcb;
6405 struct ipr_cmnd *ipr_cmd;
56d6aa33 6406 unsigned long hrrq_flags, lock_flags;
d12f1576 6407 int rc;
05a6538a 6408 struct ipr_hrr_queue *hrrq;
6409 int hrrq_id;
1da177e4 6410
00bfef2c
BK		 6411 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6412
1da177e4 6413 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6414 res = scsi_cmd->device->hostdata;
56d6aa33 6415
6416 if (ipr_is_gata(res) && res->sata_port) {
6417 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6418 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6419 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6420 return rc;
6421 }
6422
05a6538a 6423 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6424 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6425
56d6aa33 6426 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6427 /*
6428 * We are currently blocking all devices due to a host reset
6429 * We have told the host to stop giving us new requests, but
6430 * ERP ops don't count. FIXME
6431 */
bfae7820 6432 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6433 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6434 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6435 }
1da177e4
LT		 6436
6437 /*
6438 * FIXME - Create scsi_set_host_offline interface
6439 * and the ioa_is_dead check can be removed
6440 */
bfae7820 6441 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6442 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6443 goto err_nodev;
1da177e4
LT		 6444 }
6445
05a6538a 6446 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6447 if (ipr_cmd == NULL) {
56d6aa33 6448 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6449 return SCSI_MLQUEUE_HOST_BUSY;
6450 }
56d6aa33 6451 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6452
172cd6e1 6453 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6454 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6455
6456 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6457 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6458 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4 6459
4f92d01a 6460 if (ipr_is_gscsi(res)) {
1da177e4
LT		 6461 if (scsi_cmd->underflow == 0)
6462 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6463
4f92d01a 6464 if (res->reset_occurred) {
0b1f8d44 6465 res->reset_occurred = 0;
ab6c10b1 6466 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6467 }
4f92d01a
GKB		 6468 }
6469
6470 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6471 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6472
1da177e4 6473 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6474 if (scsi_cmd->flags & SCMD_TAGGED)
6475 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6476 else
6477 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6478 }
6479
6480 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6481 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6482 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6483 }
3cb4fc1f 6484 if (res->raw_mode && ipr_is_af_dasd_device(res)) {
f8ee25d7 6485 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE;
1da177e4 6486
3cb4fc1f
GKB		 6487 if (scsi_cmd->underflow == 0)
6488 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6489 }
6490
d12f1576
DC		 6491 if (ioa_cfg->sis64)
6492 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6493 else
6494 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6495
56d6aa33 6496 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6497 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6498 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6499 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6500 if (!rc)
6501 scsi_dma_unmap(scsi_cmd);
a5fb407e 6502 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6503 }
6504
56d6aa33 6505 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6506 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6507 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6508 scsi_dma_unmap(scsi_cmd);
6509 goto err_nodev;
6510 }
6511
6512 ioarcb->res_handle = res->res_handle;
6513 if (res->needs_sync_complete) {
6514 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6515 res->needs_sync_complete = 0;
6516 }
05a6538a 6517 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6518 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6519 ipr_send_command(ipr_cmd);
56d6aa33 6520 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6521 return 0;
1da177e4 6522
00bfef2c 6523err_nodev:
56d6aa33 6524 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6525 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6526 scsi_cmd->result = (DID_NO_CONNECT << 16);
6527 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6528 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6529 return 0;
6530}
f281233d 6531
35a39691
BK		 6532/**
6533 * ipr_ioctl - IOCTL handler
6534 * @sdev: scsi device struct
6535 * @cmd: IOCTL cmd
6536 * @arg: IOCTL arg
6537 *
6538 * Return value:
6539 * 0 on success / other on failure
6540 **/
bd705f2d 6541static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6542{
6543 struct ipr_resource_entry *res;
6544
6545 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6546 if (res && ipr_is_gata(res)) {
6547 if (cmd == HDIO_GET_IDENTITY)
6548 return -ENOTTY;
94be9a58 6549 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6550 }
35a39691
BK		 6551
6552 return -EINVAL;
6553}
6554
1da177e4
LT		 6555/**
6556 * ipr_info - Get information about the card/driver
6557 * @scsi_host: scsi host struct
6558 *
6559 * Return value:
6560 * pointer to buffer with description string
6561 **/
203fa3fe 6562static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6563{
6564 static char buffer[512];
6565 struct ipr_ioa_cfg *ioa_cfg;
6566 unsigned long lock_flags = 0;
6567
6568 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6569
6570 spin_lock_irqsave(host->host_lock, lock_flags);
6571 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6572 spin_unlock_irqrestore(host->host_lock, lock_flags);
6573
6574 return buffer;
6575}
6576
6577static struct scsi_host_template driver_template = {
6578 .module = THIS_MODULE,
6579 .name = "IPR",
6580 .info = ipr_ioa_info,
35a39691 6581 .ioctl = ipr_ioctl,
1da177e4
LT		 6582 .queuecommand = ipr_queuecommand,
6583 .eh_abort_handler = ipr_eh_abort,
6584 .eh_device_reset_handler = ipr_eh_dev_reset,
6585 .eh_host_reset_handler = ipr_eh_host_reset,
6586 .slave_alloc = ipr_slave_alloc,
6587 .slave_configure = ipr_slave_configure,
6588 .slave_destroy = ipr_slave_destroy,
f688f96d 6589 .scan_finished = ipr_scan_finished,
35a39691
BK		 6590 .target_alloc = ipr_target_alloc,
6591 .target_destroy = ipr_target_destroy,
1da177e4 6592 .change_queue_depth = ipr_change_queue_depth,
1da177e4
LT		 6593 .bios_param = ipr_biosparam,
6594 .can_queue = IPR_MAX_COMMANDS,
6595 .this_id = -1,
6596 .sg_tablesize = IPR_MAX_SGLIST,
6597 .max_sectors = IPR_IOA_MAX_SECTORS,
6598 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6599 .use_clustering = ENABLE_CLUSTERING,
6600 .shost_attrs = ipr_ioa_attrs,
6601 .sdev_attrs = ipr_dev_attrs,
54b2b50c 6602 .proc_name = IPR_NAME,
1da177e4
LT		 6603};
6604
35a39691
BK		 6605/**
6606 * ipr_ata_phy_reset - libata phy_reset handler
6607 * @ap: ata port to reset
6608 *
6609 **/
6610static void ipr_ata_phy_reset(struct ata_port *ap)
6611{
6612 unsigned long flags;
6613 struct ipr_sata_port *sata_port = ap->private_data;
6614 struct ipr_resource_entry *res = sata_port->res;
6615 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6616 int rc;
6617
6618 ENTER;
6619 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6620 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6621 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6622 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6623 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6624 }
6625
56d6aa33 6626 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6627 goto out_unlock;
6628
6629 rc = ipr_device_reset(ioa_cfg, res);
6630
6631 if (rc) {
3e4ec344 6632 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6633 goto out_unlock;
6634 }
6635
3e7ebdfa
WB		 6636 ap->link.device[0].class = res->ata_class;
6637 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6638 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6639
6640out_unlock:
6641 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6642 LEAVE;
6643}
6644
6645/**
6646 * ipr_ata_post_internal - Cleanup after an internal command
6647 * @qc: ATA queued command
6648 *
6649 * Return value:
6650 * none
6651 **/
6652static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6653{
6654 struct ipr_sata_port *sata_port = qc->ap->private_data;
6655 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6656 struct ipr_cmnd *ipr_cmd;
05a6538a 6657 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6658 unsigned long flags;
6659
6660 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6661 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6662 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6663 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6664 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6665 }
6666
05a6538a 6667 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6668 spin_lock(&hrrq->_lock);
05a6538a 6669 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6670 if (ipr_cmd->qc == qc) {
6671 ipr_device_reset(ioa_cfg, sata_port->res);
6672 break;
6673 }
35a39691 6674 }
56d6aa33 6675 spin_unlock(&hrrq->_lock);
35a39691
BK		 6676 }
6677 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6678}
6679
35a39691
BK		 6680/**
6681 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6682 * @regs: destination
6683 * @tf: source ATA taskfile
6684 *
6685 * Return value:
6686 * none
6687 **/
6688static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6689 struct ata_taskfile *tf)
6690{
6691 regs->feature = tf->feature;
6692 regs->nsect = tf->nsect;
6693 regs->lbal = tf->lbal;
6694 regs->lbam = tf->lbam;
6695 regs->lbah = tf->lbah;
6696 regs->device = tf->device;
6697 regs->command = tf->command;
6698 regs->hob_feature = tf->hob_feature;
6699 regs->hob_nsect = tf->hob_nsect;
6700 regs->hob_lbal = tf->hob_lbal;
6701 regs->hob_lbam = tf->hob_lbam;
6702 regs->hob_lbah = tf->hob_lbah;
6703 regs->ctl = tf->ctl;
6704}
6705
6706/**
6707 * ipr_sata_done - done function for SATA commands
6708 * @ipr_cmd: ipr command struct
6709 *
6710 * This function is invoked by the interrupt handler for
6711 * ops generated by the SCSI mid-layer to SATA devices
6712 *
6713 * Return value:
6714 * none
6715 **/
6716static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6717{
6718 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6719 struct ata_queued_cmd *qc = ipr_cmd->qc;
6720 struct ipr_sata_port *sata_port = qc->ap->private_data;
6721 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6722 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6723
56d6aa33 6724 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6725 if (ipr_cmd->ioa_cfg->sis64)
6726 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6727 sizeof(struct ipr_ioasa_gata));
6728 else
6729 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6730 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6731 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6732
96d21f00 6733 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6734 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6735
6736 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6737 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6738 else
96d21f00 6739 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6740 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6741 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6742 ata_qc_complete(qc);
6743}
6744
a32c055f
WB		 6745/**
6746 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6747 * @ipr_cmd: ipr command struct
6748 * @qc: ATA queued command
6749 *
6750 **/
6751static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6752 struct ata_queued_cmd *qc)
6753{
6754 u32 ioadl_flags = 0;
6755 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6756 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6757 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6758 int len = qc->nbytes;
6759 struct scatterlist *sg;
6760 unsigned int si;
6761 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6762
6763 if (len == 0)
6764 return;
6765
6766 if (qc->dma_dir == DMA_TO_DEVICE) {
6767 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6768 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6769 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6770 ioadl_flags = IPR_IOADL_FLAGS_READ;
6771
6772 ioarcb->data_transfer_length = cpu_to_be32(len);
6773 ioarcb->ioadl_len =
6774 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6775 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6776 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6777
6778 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6779 ioadl64->flags = cpu_to_be32(ioadl_flags);
6780 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6781 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6782
6783 last_ioadl64 = ioadl64;
6784 ioadl64++;
6785 }
6786
6787 if (likely(last_ioadl64))
6788 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6789}
6790
35a39691
BK		 6791/**
6792 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6793 * @ipr_cmd: ipr command struct
6794 * @qc: ATA queued command
6795 *
6796 **/
6797static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6798 struct ata_queued_cmd *qc)
6799{
6800 u32 ioadl_flags = 0;
6801 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6802 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6803 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6804 int len = qc->nbytes;
35a39691 6805 struct scatterlist *sg;
ff2aeb1e 6806 unsigned int si;
35a39691
BK		 6807
6808 if (len == 0)
6809 return;
6810
6811 if (qc->dma_dir == DMA_TO_DEVICE) {
6812 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6813 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6814 ioarcb->data_transfer_length = cpu_to_be32(len);
6815 ioarcb->ioadl_len =
35a39691
BK		 6816 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6817 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6818 ioadl_flags = IPR_IOADL_FLAGS_READ;
6819 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6820 ioarcb->read_ioadl_len =
6821 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6822 }
6823
ff2aeb1e 6824 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6825 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6826 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6827
6828 last_ioadl = ioadl;
6829 ioadl++;
35a39691 6830 }
3be6cbd7
JG		 6831
6832 if (likely(last_ioadl))
6833 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6834}
6835
56d6aa33 6836/**
6837 * ipr_qc_defer - Get a free ipr_cmd
6838 * @qc: queued command
6839 *
6840 * Return value:
6841 * 0 if success
6842 **/
6843static int ipr_qc_defer(struct ata_queued_cmd *qc)
6844{
6845 struct ata_port *ap = qc->ap;
6846 struct ipr_sata_port *sata_port = ap->private_data;
6847 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6848 struct ipr_cmnd *ipr_cmd;
6849 struct ipr_hrr_queue *hrrq;
6850 int hrrq_id;
6851
6852 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6853 hrrq = &ioa_cfg->hrrq[hrrq_id];
6854
6855 qc->lldd_task = NULL;
6856 spin_lock(&hrrq->_lock);
6857 if (unlikely(hrrq->ioa_is_dead)) {
6858 spin_unlock(&hrrq->_lock);
6859 return 0;
6860 }
6861
6862 if (unlikely(!hrrq->allow_cmds)) {
6863 spin_unlock(&hrrq->_lock);
6864 return ATA_DEFER_LINK;
6865 }
6866
6867 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6868 if (ipr_cmd == NULL) {
6869 spin_unlock(&hrrq->_lock);
6870 return ATA_DEFER_LINK;
6871 }
6872
6873 qc->lldd_task = ipr_cmd;
6874 spin_unlock(&hrrq->_lock);
6875 return 0;
6876}
6877
35a39691
BK		 6878/**
6879 * ipr_qc_issue - Issue a SATA qc to a device
6880 * @qc: queued command
6881 *
6882 * Return value:
6883 * 0 if success
6884 **/
6885static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6886{
6887 struct ata_port *ap = qc->ap;
6888 struct ipr_sata_port *sata_port = ap->private_data;
6889 struct ipr_resource_entry *res = sata_port->res;
6890 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6891 struct ipr_cmnd *ipr_cmd;
6892 struct ipr_ioarcb *ioarcb;
6893 struct ipr_ioarcb_ata_regs *regs;
6894
56d6aa33 6895 if (qc->lldd_task == NULL)
6896 ipr_qc_defer(qc);
6897
6898 ipr_cmd = qc->lldd_task;
6899 if (ipr_cmd == NULL)
0feeed82 6900 return AC_ERR_SYSTEM;
35a39691 6901
56d6aa33 6902 qc->lldd_task = NULL;
6903 spin_lock(&ipr_cmd->hrrq->_lock);
6904 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6905 ipr_cmd->hrrq->ioa_is_dead)) {
6906 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6907 spin_unlock(&ipr_cmd->hrrq->_lock);
6908 return AC_ERR_SYSTEM;
6909 }
6910
05a6538a 6911 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6912 ioarcb = &ipr_cmd->ioarcb;
35a39691 6913
a32c055f
WB		 6914 if (ioa_cfg->sis64) {
6915 regs = &ipr_cmd->i.ata_ioadl.regs;
6916 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6917 } else
6918 regs = &ioarcb->u.add_data.u.regs;
6919
6920 memset(regs, 0, sizeof(*regs));
6921 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6922
56d6aa33 6923 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6924 ipr_cmd->qc = qc;
6925 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6926 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6927 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6928 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6929 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6930 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6931
a32c055f
WB		 6932 if (ioa_cfg->sis64)
6933 ipr_build_ata_ioadl64(ipr_cmd, qc);
6934 else
6935 ipr_build_ata_ioadl(ipr_cmd, qc);
6936
35a39691
BK		 6937 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6938 ipr_copy_sata_tf(regs, &qc->tf);
6939 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6940 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6941
6942 switch (qc->tf.protocol) {
6943 case ATA_PROT_NODATA:
6944 case ATA_PROT_PIO:
6945 break;
6946
6947 case ATA_PROT_DMA:
6948 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6949 break;
6950
0dc36888
TH		 6951 case ATAPI_PROT_PIO:
6952 case ATAPI_PROT_NODATA:
35a39691
BK		 6953 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6954 break;
6955
0dc36888 6956 case ATAPI_PROT_DMA:
35a39691
BK		 6957 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6958 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6959 break;
6960
6961 default:
6962 WARN_ON(1);
56d6aa33 6963 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6964 return AC_ERR_INVALID;
35a39691
BK		 6965 }
6966
a32c055f 6967 ipr_send_command(ipr_cmd);
56d6aa33 6968 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6969
35a39691
BK		 6970 return 0;
6971}
6972
4c9bf4e7
TH		 6973/**
6974 * ipr_qc_fill_rtf - Read result TF
6975 * @qc: ATA queued command
6976 *
6977 * Return value:
6978 * true
6979 **/
6980static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6981{
6982 struct ipr_sata_port *sata_port = qc->ap->private_data;
6983 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6984 struct ata_taskfile *tf = &qc->result_tf;
6985
6986 tf->feature = g->error;
6987 tf->nsect = g->nsect;
6988 tf->lbal = g->lbal;
6989 tf->lbam = g->lbam;
6990 tf->lbah = g->lbah;
6991 tf->device = g->device;
6992 tf->command = g->status;
6993 tf->hob_nsect = g->hob_nsect;
6994 tf->hob_lbal = g->hob_lbal;
6995 tf->hob_lbam = g->hob_lbam;
6996 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6997
6998 return true;
6999}
7000
35a39691 7001static struct ata_port_operations ipr_sata_ops = {
35a39691 7002 .phy_reset = ipr_ata_phy_reset,
a1efdaba 7003 .hardreset = ipr_sata_reset,
35a39691 7004 .post_internal_cmd = ipr_ata_post_internal,
35a39691 7005 .qc_prep = ata_noop_qc_prep,
56d6aa33 7006 .qc_defer = ipr_qc_defer,
35a39691 7007 .qc_issue = ipr_qc_issue,
4c9bf4e7 7008 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 7009 .port_start = ata_sas_port_start,
7010 .port_stop = ata_sas_port_stop
7011};
7012
7013static struct ata_port_info sata_port_info = {
5067c046
SL		 7014 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA |
7015 ATA_FLAG_SAS_HOST,
0f2e0330
SS		 7016 .pio_mask = ATA_PIO4_ONLY,
7017 .mwdma_mask = ATA_MWDMA2,
7018 .udma_mask = ATA_UDMA6,
35a39691
BK		 7019 .port_ops = &ipr_sata_ops
7020};
7021
1da177e4
LT		 7022#ifdef CONFIG_PPC_PSERIES
7023static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 7024 PVR_NORTHSTAR,
7025 PVR_PULSAR,
7026 PVR_POWER4,
7027 PVR_ICESTAR,
7028 PVR_SSTAR,
7029 PVR_POWER4p,
7030 PVR_630,
7031 PVR_630p
1da177e4
LT		 7032};
7033
7034/**
7035 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
7036 * @ioa_cfg: ioa cfg struct
7037 *
7038 * Adapters that use Gemstone revision < 3.1 do not work reliably on
7039 * certain pSeries hardware. This function determines if the given
7040 * adapter is in one of these confgurations or not.
7041 *
7042 * Return value:
7043 * 1 if adapter is not supported / 0 if adapter is supported
7044 **/
7045static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
7046{
1da177e4
LT		 7047 int i;
7048
44c10138 7049 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 7050 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 7051 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 7052 return 1;
1da177e4
LT		 7053 }
7054 }
7055 return 0;
7056}
7057#else
7058#define ipr_invalid_adapter(ioa_cfg) 0
7059#endif
7060
7061/**
7062 * ipr_ioa_bringdown_done - IOA bring down completion.
7063 * @ipr_cmd: ipr command struct
7064 *
7065 * This function processes the completion of an adapter bring down.
7066 * It wakes any reset sleepers.
7067 *
7068 * Return value:
7069 * IPR_RC_JOB_RETURN
7070 **/
7071static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
7072{
7073 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 7074 int i;
1da177e4
LT		 7075
7076 ENTER;
bfae7820
BK		 7077 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
7078 ipr_trace;
7079 spin_unlock_irq(ioa_cfg->host->host_lock);
7080 scsi_unblock_requests(ioa_cfg->host);
7081 spin_lock_irq(ioa_cfg->host->host_lock);
7082 }
7083
1da177e4
LT		 7084 ioa_cfg->in_reset_reload = 0;
7085 ioa_cfg->reset_retries = 0;
96b04db9 7086 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7087 spin_lock(&ioa_cfg->hrrq[i]._lock);
7088 ioa_cfg->hrrq[i].ioa_is_dead = 1;
7089 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7090 }
7091 wmb();
7092
05a6538a 7093 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 7094 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 7095 LEAVE;
7096
7097 return IPR_RC_JOB_RETURN;
7098}
7099
7100/**
7101 * ipr_ioa_reset_done - IOA reset completion.
7102 * @ipr_cmd: ipr command struct
7103 *
7104 * This function processes the completion of an adapter reset.
7105 * It schedules any necessary mid-layer add/removes and
7106 * wakes any reset sleepers.
7107 *
7108 * Return value:
7109 * IPR_RC_JOB_RETURN
7110 **/
7111static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
7112{
7113 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7114 struct ipr_resource_entry *res;
afc3f83c 7115 int j;
1da177e4
LT		 7116
7117 ENTER;
7118 ioa_cfg->in_reset_reload = 0;
56d6aa33 7119 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
7120 spin_lock(&ioa_cfg->hrrq[j]._lock);
7121 ioa_cfg->hrrq[j].allow_cmds = 1;
7122 spin_unlock(&ioa_cfg->hrrq[j]._lock);
7123 }
7124 wmb();
1da177e4 7125 ioa_cfg->reset_cmd = NULL;
3d1d0da6 7126 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 7127
7128 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
f688f96d 7129 if (res->add_to_ml || res->del_from_ml) {
1da177e4
LT		 7130 ipr_trace;
7131 break;
7132 }
7133 }
7134 schedule_work(&ioa_cfg->work_q);
7135
afc3f83c
BK		 7136 for (j = 0; j < IPR_NUM_HCAMS; j++) {
7137 list_del_init(&ioa_cfg->hostrcb[j]->queue);
7138 if (j < IPR_NUM_LOG_HCAMS)
7139 ipr_send_hcam(ioa_cfg,
7140 IPR_HCAM_CDB_OP_CODE_LOG_DATA,
7141 ioa_cfg->hostrcb[j]);
1da177e4 7142 else
afc3f83c
BK		 7143 ipr_send_hcam(ioa_cfg,
7144 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
7145 ioa_cfg->hostrcb[j]);
1da177e4
LT		 7146 }
7147
6bb04170 7148 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 7149 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
7150
7151 ioa_cfg->reset_retries = 0;
05a6538a 7152 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 7153 wake_up_all(&ioa_cfg->reset_wait_q);
7154
30237853 7155 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 7156 scsi_unblock_requests(ioa_cfg->host);
30237853 7157 spin_lock(ioa_cfg->host->host_lock);
1da177e4 7158
56d6aa33 7159 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 7160 scsi_block_requests(ioa_cfg->host);
7161
f688f96d 7162 schedule_work(&ioa_cfg->work_q);
1da177e4
LT		 7163 LEAVE;
7164 return IPR_RC_JOB_RETURN;
7165}
7166
7167/**
7168 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
7169 * @supported_dev: supported device struct
7170 * @vpids: vendor product id struct
7171 *
7172 * Return value:
7173 * none
7174 **/
7175static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
7176 struct ipr_std_inq_vpids *vpids)
7177{
7178 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
7179 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
7180 supported_dev->num_records = 1;
7181 supported_dev->data_length =
7182 cpu_to_be16(sizeof(struct ipr_supported_device));
7183 supported_dev->reserved = 0;
7184}
7185
7186/**
7187 * ipr_set_supported_devs - Send Set Supported Devices for a device
7188 * @ipr_cmd: ipr command struct
7189 *
a32c055f 7190 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 7191 *
7192 * Return value:
7193 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7194 **/
7195static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
7196{
7197 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7198 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 7199 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7200 struct ipr_resource_entry *res = ipr_cmd->u.res;
7201
7202 ipr_cmd->job_step = ipr_ioa_reset_done;
7203
7204 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 7205 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 7206 continue;
7207
7208 ipr_cmd->u.res = res;
3e7ebdfa 7209 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 7210
7211 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7212 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7213 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7214
7215 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 7216 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 7217 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
7218 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
7219
a32c055f
WB		 7220 ipr_init_ioadl(ipr_cmd,
7221 ioa_cfg->vpd_cbs_dma +
7222 offsetof(struct ipr_misc_cbs, supp_dev),
7223 sizeof(struct ipr_supported_device),
7224 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7225
7226 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7227 IPR_SET_SUP_DEVICE_TIMEOUT);
7228
3e7ebdfa
WB		 7229 if (!ioa_cfg->sis64)
7230 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 7231 LEAVE;
1da177e4
LT		 7232 return IPR_RC_JOB_RETURN;
7233 }
7234
05a6538a 7235 LEAVE;
1da177e4
LT		 7236 return IPR_RC_JOB_CONTINUE;
7237}
7238
7239/**
7240 * ipr_get_mode_page - Locate specified mode page
7241 * @mode_pages: mode page buffer
7242 * @page_code: page code to find
7243 * @len: minimum required length for mode page
7244 *
7245 * Return value:
7246 * pointer to mode page / NULL on failure
7247 **/
7248static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
7249 u32 page_code, u32 len)
7250{
7251 struct ipr_mode_page_hdr *mode_hdr;
7252 u32 page_length;
7253 u32 length;
7254
7255 if (!mode_pages || (mode_pages->hdr.length == 0))
7256 return NULL;
7257
7258 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7259 mode_hdr = (struct ipr_mode_page_hdr *)
7260 (mode_pages->data + mode_pages->hdr.block_desc_len);
7261
7262 while (length) {
7263 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7264 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7265 return mode_hdr;
7266 break;
7267 } else {
7268 page_length = (sizeof(struct ipr_mode_page_hdr) +
7269 mode_hdr->page_length);
7270 length -= page_length;
7271 mode_hdr = (struct ipr_mode_page_hdr *)
7272 ((unsigned long)mode_hdr + page_length);
7273 }
7274 }
7275 return NULL;
7276}
7277
7278/**
7279 * ipr_check_term_power - Check for term power errors
7280 * @ioa_cfg: ioa config struct
7281 * @mode_pages: IOAFP mode pages buffer
7282 *
7283 * Check the IOAFP's mode page 28 for term power errors
7284 *
7285 * Return value:
7286 * nothing
7287 **/
7288static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7289 struct ipr_mode_pages *mode_pages)
7290{
7291 int i;
7292 int entry_length;
7293 struct ipr_dev_bus_entry *bus;
7294 struct ipr_mode_page28 *mode_page;
7295
7296 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7297 sizeof(struct ipr_mode_page28));
7298
7299 entry_length = mode_page->entry_length;
7300
7301 bus = mode_page->bus;
7302
7303 for (i = 0; i < mode_page->num_entries; i++) {
7304 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7305 dev_err(&ioa_cfg->pdev->dev,
7306 "Term power is absent on scsi bus %d\n",
7307 bus->res_addr.bus);
7308 }
7309
7310 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7311 }
7312}
7313
7314/**
7315 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7316 * @ioa_cfg: ioa config struct
7317 *
7318 * Looks through the config table checking for SES devices. If
7319 * the SES device is in the SES table indicating a maximum SCSI
7320 * bus speed, the speed is limited for the bus.
7321 *
7322 * Return value:
7323 * none
7324 **/
7325static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7326{
7327 u32 max_xfer_rate;
7328 int i;
7329
7330 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7331 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7332 ioa_cfg->bus_attr[i].bus_width);
7333
7334 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7335 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7336 }
7337}
7338
7339/**
7340 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7341 * @ioa_cfg: ioa config struct
7342 * @mode_pages: mode page 28 buffer
7343 *
7344 * Updates mode page 28 based on driver configuration
7345 *
7346 * Return value:
7347 * none
7348 **/
7349static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7350 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7351{
7352 int i, entry_length;
7353 struct ipr_dev_bus_entry *bus;
7354 struct ipr_bus_attributes *bus_attr;
7355 struct ipr_mode_page28 *mode_page;
7356
7357 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7358 sizeof(struct ipr_mode_page28));
7359
7360 entry_length = mode_page->entry_length;
7361
7362 /* Loop for each device bus entry */
7363 for (i = 0, bus = mode_page->bus;
7364 i < mode_page->num_entries;
7365 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7366 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7367 dev_err(&ioa_cfg->pdev->dev,
7368 "Invalid resource address reported: 0x%08X\n",
7369 IPR_GET_PHYS_LOC(bus->res_addr));
7370 continue;
7371 }
7372
7373 bus_attr = &ioa_cfg->bus_attr[i];
7374 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7375 bus->bus_width = bus_attr->bus_width;
7376 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7377 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7378 if (bus_attr->qas_enabled)
7379 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7380 else
7381 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7382 }
7383}
7384
7385/**
7386 * ipr_build_mode_select - Build a mode select command
7387 * @ipr_cmd: ipr command struct
7388 * @res_handle: resource handle to send command to
7389 * @parm: Byte 2 of Mode Sense command
7390 * @dma_addr: DMA buffer address
7391 * @xfer_len: data transfer length
7392 *
7393 * Return value:
7394 * none
7395 **/
7396static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7397 __be32 res_handle, u8 parm,
7398 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7399{
1da177e4
LT		 7400 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7401
7402 ioarcb->res_handle = res_handle;
7403 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7404 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7405 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7406 ioarcb->cmd_pkt.cdb[1] = parm;
7407 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7408
a32c055f 7409 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7410}
7411
7412/**
7413 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7414 * @ipr_cmd: ipr command struct
7415 *
7416 * This function sets up the SCSI bus attributes and sends
7417 * a Mode Select for Page 28 to activate them.
7418 *
7419 * Return value:
7420 * IPR_RC_JOB_RETURN
7421 **/
7422static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7423{
7424 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7425 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7426 int length;
7427
7428 ENTER;
4733804c
BK		 7429 ipr_scsi_bus_speed_limit(ioa_cfg);
7430 ipr_check_term_power(ioa_cfg, mode_pages);
7431 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7432 length = mode_pages->hdr.length + 1;
7433 mode_pages->hdr.length = 0;
1da177e4
LT		 7434
7435 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7436 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7437 length);
7438
f72919ec
WB		 7439 ipr_cmd->job_step = ipr_set_supported_devs;
7440 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7441 struct ipr_resource_entry, queue);
1da177e4
LT		 7442 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7443
7444 LEAVE;
7445 return IPR_RC_JOB_RETURN;
7446}
7447
7448/**
7449 * ipr_build_mode_sense - Builds a mode sense command
7450 * @ipr_cmd: ipr command struct
7451 * @res: resource entry struct
7452 * @parm: Byte 2 of mode sense command
7453 * @dma_addr: DMA address of mode sense buffer
7454 * @xfer_len: Size of DMA buffer
7455 *
7456 * Return value:
7457 * none
7458 **/
7459static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7460 __be32 res_handle,
a32c055f 7461 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7462{
1da177e4
LT		 7463 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7464
7465 ioarcb->res_handle = res_handle;
7466 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7467 ioarcb->cmd_pkt.cdb[2] = parm;
7468 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7469 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7470
a32c055f 7471 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7472}
7473
dfed823e
BK		 7474/**
7475 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7476 * @ipr_cmd: ipr command struct
7477 *
7478 * This function handles the failure of an IOA bringup command.
7479 *
7480 * Return value:
7481 * IPR_RC_JOB_RETURN
7482 **/
7483static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7484{
7485 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7486 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7487
7488 dev_err(&ioa_cfg->pdev->dev,
7489 "0x%02X failed with IOASC: 0x%08X\n",
7490 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7491
7492 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7493 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e
BK		 7494 return IPR_RC_JOB_RETURN;
7495}
7496
7497/**
7498 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7499 * @ipr_cmd: ipr command struct
7500 *
7501 * This function handles the failure of a Mode Sense to the IOAFP.
7502 * Some adapters do not handle all mode pages.
7503 *
7504 * Return value:
7505 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7506 **/
7507static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7508{
f72919ec 7509 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7510 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7511
7512 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7513 ipr_cmd->job_step = ipr_set_supported_devs;
7514 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7515 struct ipr_resource_entry, queue);
dfed823e
BK		 7516 return IPR_RC_JOB_CONTINUE;
7517 }
7518
7519 return ipr_reset_cmd_failed(ipr_cmd);
7520}
7521
1da177e4
LT		 7522/**
7523 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7524 * @ipr_cmd: ipr command struct
7525 *
7526 * This function send a Page 28 mode sense to the IOA to
7527 * retrieve SCSI bus attributes.
7528 *
7529 * Return value:
7530 * IPR_RC_JOB_RETURN
7531 **/
7532static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7533{
7534 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7535
7536 ENTER;
7537 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7538 0x28, ioa_cfg->vpd_cbs_dma +
7539 offsetof(struct ipr_misc_cbs, mode_pages),
7540 sizeof(struct ipr_mode_pages));
7541
7542 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7543 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7544
7545 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7546
7547 LEAVE;
7548 return IPR_RC_JOB_RETURN;
7549}
7550
ac09c349
BK		 7551/**
7552 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7553 * @ipr_cmd: ipr command struct
7554 *
7555 * This function enables dual IOA RAID support if possible.
7556 *
7557 * Return value:
7558 * IPR_RC_JOB_RETURN
7559 **/
7560static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7561{
7562 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7563 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7564 struct ipr_mode_page24 *mode_page;
7565 int length;
7566
7567 ENTER;
7568 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7569 sizeof(struct ipr_mode_page24));
7570
7571 if (mode_page)
7572 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7573
7574 length = mode_pages->hdr.length + 1;
7575 mode_pages->hdr.length = 0;
7576
7577 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7578 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7579 length);
7580
7581 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7582 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7583
7584 LEAVE;
7585 return IPR_RC_JOB_RETURN;
7586}
7587
7588/**
7589 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7590 * @ipr_cmd: ipr command struct
7591 *
7592 * This function handles the failure of a Mode Sense to the IOAFP.
7593 * Some adapters do not handle all mode pages.
7594 *
7595 * Return value:
7596 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7597 **/
7598static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7599{
96d21f00 7600 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7601
7602 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7603 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7604 return IPR_RC_JOB_CONTINUE;
7605 }
7606
7607 return ipr_reset_cmd_failed(ipr_cmd);
7608}
7609
7610/**
7611 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7612 * @ipr_cmd: ipr command struct
7613 *
7614 * This function send a mode sense to the IOA to retrieve
7615 * the IOA Advanced Function Control mode page.
7616 *
7617 * Return value:
7618 * IPR_RC_JOB_RETURN
7619 **/
7620static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7621{
7622 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7623
7624 ENTER;
7625 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7626 0x24, ioa_cfg->vpd_cbs_dma +
7627 offsetof(struct ipr_misc_cbs, mode_pages),
7628 sizeof(struct ipr_mode_pages));
7629
7630 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7631 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7632
7633 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7634
7635 LEAVE;
7636 return IPR_RC_JOB_RETURN;
7637}
7638
1da177e4
LT		 7639/**
7640 * ipr_init_res_table - Initialize the resource table
7641 * @ipr_cmd: ipr command struct
7642 *
7643 * This function looks through the existing resource table, comparing
7644 * it with the config table. This function will take care of old/new
7645 * devices and schedule adding/removing them from the mid-layer
7646 * as appropriate.
7647 *
7648 * Return value:
7649 * IPR_RC_JOB_CONTINUE
7650 **/
7651static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7652{
7653 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7654 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7655 struct ipr_config_table_entry_wrapper cfgtew;
7656 int entries, found, flag, i;
1da177e4
LT		 7657 LIST_HEAD(old_res);
7658
7659 ENTER;
3e7ebdfa
WB		 7660 if (ioa_cfg->sis64)
7661 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7662 else
7663 flag = ioa_cfg->u.cfg_table->hdr.flags;
7664
7665 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7666 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7667
7668 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7669 list_move_tail(&res->queue, &old_res);
7670
3e7ebdfa 7671 if (ioa_cfg->sis64)
438b0331 7672 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7673 else
7674 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7675
7676 for (i = 0; i < entries; i++) {
7677 if (ioa_cfg->sis64)
7678 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7679 else
7680 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7681 found = 0;
7682
7683 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7684 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7685 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7686 found = 1;
7687 break;
7688 }
7689 }
7690
7691 if (!found) {
7692 if (list_empty(&ioa_cfg->free_res_q)) {
7693 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7694 break;
7695 }
7696
7697 found = 1;
7698 res = list_entry(ioa_cfg->free_res_q.next,
7699 struct ipr_resource_entry, queue);
7700 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7701 ipr_init_res_entry(res, &cfgtew);
1da177e4 7702 res->add_to_ml = 1;
56115598
WB		 7703 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7704 res->sdev->allow_restart = 1;
1da177e4
LT		 7705
7706 if (found)
3e7ebdfa 7707 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7708 }
7709
7710 list_for_each_entry_safe(res, temp, &old_res, queue) {
7711 if (res->sdev) {
7712 res->del_from_ml = 1;
3e7ebdfa 7713 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7714 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7715 }
7716 }
7717
3e7ebdfa
WB		 7718 list_for_each_entry_safe(res, temp, &old_res, queue) {
7719 ipr_clear_res_target(res);
7720 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7721 }
7722
ac09c349
BK		 7723 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7724 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7725 else
7726 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7727
7728 LEAVE;
7729 return IPR_RC_JOB_CONTINUE;
7730}
7731
7732/**
7733 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7734 * @ipr_cmd: ipr command struct
7735 *
7736 * This function sends a Query IOA Configuration command
7737 * to the adapter to retrieve the IOA configuration table.
7738 *
7739 * Return value:
7740 * IPR_RC_JOB_RETURN
7741 **/
7742static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7743{
7744 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7745 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7746 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7747 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7748
7749 ENTER;
ac09c349
BK		 7750 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7751 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7752 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7753 ucode_vpd->major_release, ucode_vpd->card_type,
7754 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7755 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7756 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7757
7758 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7759 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7760 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7761 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7762
3e7ebdfa 7763 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7764 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7765
7766 ipr_cmd->job_step = ipr_init_res_table;
7767
7768 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7769
7770 LEAVE;
7771 return IPR_RC_JOB_RETURN;
7772}
7773
1a47af26
GKB		 7774static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd)
7775{
7776 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7777
7778 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT)
7779 return IPR_RC_JOB_CONTINUE;
7780
7781 return ipr_reset_cmd_failed(ipr_cmd);
7782}
7783
7784static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd,
7785 __be32 res_handle, u8 sa_code)
7786{
7787 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7788
7789 ioarcb->res_handle = res_handle;
7790 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION;
7791 ioarcb->cmd_pkt.cdb[1] = sa_code;
7792 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7793}
7794
7795/**
7796 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service
7797 * action
7798 *
7799 * Return value:
7800 * none
7801 **/
7802static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd)
7803{
7804 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7805 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7806 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7807
7808 ENTER;
7809
7810 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7811
7812 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) {
7813 ipr_build_ioa_service_action(ipr_cmd,
7814 cpu_to_be32(IPR_IOA_RES_HANDLE),
7815 IPR_IOA_SA_CHANGE_CACHE_PARAMS);
7816
7817 ioarcb->cmd_pkt.cdb[2] = 0x40;
7818
7819 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed;
7820 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7821 IPR_SET_SUP_DEVICE_TIMEOUT);
7822
7823 LEAVE;
7824 return IPR_RC_JOB_RETURN;
7825 }
7826
7827 LEAVE;
7828 return IPR_RC_JOB_CONTINUE;
7829}
7830
1da177e4
LT		 7831/**
7832 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7833 * @ipr_cmd: ipr command struct
7834 *
7835 * This utility function sends an inquiry to the adapter.
7836 *
7837 * Return value:
7838 * none
7839 **/
7840static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7841 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7842{
7843 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7844
7845 ENTER;
7846 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7847 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7848
7849 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7850 ioarcb->cmd_pkt.cdb[1] = flags;
7851 ioarcb->cmd_pkt.cdb[2] = page;
7852 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7853
a32c055f 7854 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7855
7856 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7857 LEAVE;
7858}
7859
62275040
BK		 7860/**
7861 * ipr_inquiry_page_supported - Is the given inquiry page supported
7862 * @page0: inquiry page 0 buffer
7863 * @page: page code.
7864 *
7865 * This function determines if the specified inquiry page is supported.
7866 *
7867 * Return value:
7868 * 1 if page is supported / 0 if not
7869 **/
7870static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7871{
7872 int i;
7873
7874 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7875 if (page0->page[i] == page)
7876 return 1;
7877
7878 return 0;
7879}
7880
1021b3ff
GKB		 7881/**
7882 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter.
7883 * @ipr_cmd: ipr command struct
7884 *
7885 * This function sends a Page 0xC4 inquiry to the adapter
7886 * to retrieve software VPD information.
7887 *
7888 * Return value:
7889 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7890 **/
7891static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd)
7892{
7893 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7894 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7895 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data;
7896
7897 ENTER;
1a47af26 7898 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters;
1021b3ff
GKB		 7899 memset(pageC4, 0, sizeof(*pageC4));
7900
7901 if (ipr_inquiry_page_supported(page0, 0xC4)) {
7902 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4,
7903 (ioa_cfg->vpd_cbs_dma
7904 + offsetof(struct ipr_misc_cbs,
7905 pageC4_data)),
7906 sizeof(struct ipr_inquiry_pageC4));
7907 return IPR_RC_JOB_RETURN;
7908 }
7909
7910 LEAVE;
7911 return IPR_RC_JOB_CONTINUE;
7912}
7913
ac09c349
BK		 7914/**
7915 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7916 * @ipr_cmd: ipr command struct
7917 *
7918 * This function sends a Page 0xD0 inquiry to the adapter
7919 * to retrieve adapter capabilities.
7920 *
7921 * Return value:
7922 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7923 **/
7924static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7925{
7926 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7927 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7928 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7929
7930 ENTER;
1021b3ff 7931 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry;
ac09c349
BK		 7932 memset(cap, 0, sizeof(*cap));
7933
7934 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7935 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7936 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7937 sizeof(struct ipr_inquiry_cap));
7938 return IPR_RC_JOB_RETURN;
7939 }
7940
7941 LEAVE;
7942 return IPR_RC_JOB_CONTINUE;
7943}
7944
1da177e4
LT		 7945/**
7946 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7947 * @ipr_cmd: ipr command struct
7948 *
7949 * This function sends a Page 3 inquiry to the adapter
7950 * to retrieve software VPD information.
7951 *
7952 * Return value:
7953 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7954 **/
7955static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7956{
7957 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7958
7959 ENTER;
7960
ac09c349 7961 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7962
7963 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7964 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7965 sizeof(struct ipr_inquiry_page3));
7966
7967 LEAVE;
7968 return IPR_RC_JOB_RETURN;
7969}
7970
7971/**
7972 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7973 * @ipr_cmd: ipr command struct
7974 *
7975 * This function sends a Page 0 inquiry to the adapter
7976 * to retrieve supported inquiry pages.
7977 *
7978 * Return value:
7979 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7980 **/
7981static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7982{
7983 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7984 char type[5];
7985
7986 ENTER;
7987
7988 /* Grab the type out of the VPD and store it away */
7989 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7990 type[4] = '\0';
7991 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7992
f688f96d
BK		 7993 if (ipr_invalid_adapter(ioa_cfg)) {
7994 dev_err(&ioa_cfg->pdev->dev,
7995 "Adapter not supported in this hardware configuration.\n");
7996
7997 if (!ipr_testmode) {
7998 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
7999 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8000 list_add_tail(&ipr_cmd->queue,
8001 &ioa_cfg->hrrq->hrrq_free_q);
8002 return IPR_RC_JOB_RETURN;
8003 }
8004 }
8005
62275040 8006 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 8007
62275040
BK		 8008 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
8009 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
8010 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 8011
8012 LEAVE;
8013 return IPR_RC_JOB_RETURN;
8014}
8015
8016/**
8017 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
8018 * @ipr_cmd: ipr command struct
8019 *
8020 * This function sends a standard inquiry to the adapter.
8021 *
8022 * Return value:
8023 * IPR_RC_JOB_RETURN
8024 **/
8025static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
8026{
8027 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8028
8029 ENTER;
62275040 8030 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 8031
8032 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
8033 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
8034 sizeof(struct ipr_ioa_vpd));
8035
8036 LEAVE;
8037 return IPR_RC_JOB_RETURN;
8038}
8039
8040/**
214777ba 8041 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 8042 * @ipr_cmd: ipr command struct
8043 *
8044 * This function send an Identify Host Request Response Queue
8045 * command to establish the HRRQ with the adapter.
8046 *
8047 * Return value:
8048 * IPR_RC_JOB_RETURN
8049 **/
214777ba 8050static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 8051{
8052 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8053 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 8054 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 8055
8056 ENTER;
05a6538a 8057 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
87adbe08
BK		 8058 if (ioa_cfg->identify_hrrq_index == 0)
8059 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
1da177e4 8060
56d6aa33 8061 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
8062 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 8063
05a6538a 8064 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
8065 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 8066
05a6538a 8067 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8068 if (ioa_cfg->sis64)
8069 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 8070
05a6538a 8071 if (ioa_cfg->nvectors == 1)
8072 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
8073 else
8074 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
8075
8076 ioarcb->cmd_pkt.cdb[2] =
8077 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
8078 ioarcb->cmd_pkt.cdb[3] =
8079 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
8080 ioarcb->cmd_pkt.cdb[4] =
8081 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
8082 ioarcb->cmd_pkt.cdb[5] =
8083 ((u64) hrrq->host_rrq_dma) & 0xff;
8084 ioarcb->cmd_pkt.cdb[7] =
8085 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
8086 ioarcb->cmd_pkt.cdb[8] =
8087 (sizeof(u32) * hrrq->size) & 0xff;
8088
8089 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 8090 ioarcb->cmd_pkt.cdb[9] =
8091 ioa_cfg->identify_hrrq_index;
1da177e4 8092
05a6538a 8093 if (ioa_cfg->sis64) {
8094 ioarcb->cmd_pkt.cdb[10] =
8095 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
8096 ioarcb->cmd_pkt.cdb[11] =
8097 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
8098 ioarcb->cmd_pkt.cdb[12] =
8099 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
8100 ioarcb->cmd_pkt.cdb[13] =
8101 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
8102 }
8103
8104 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 8105 ioarcb->cmd_pkt.cdb[14] =
8106 ioa_cfg->identify_hrrq_index;
05a6538a 8107
8108 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8109 IPR_INTERNAL_TIMEOUT);
8110
56d6aa33 8111 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
8112 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 8113
8114 LEAVE;
8115 return IPR_RC_JOB_RETURN;
05a6538a 8116 }
8117
1da177e4 8118 LEAVE;
05a6538a 8119 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8120}
8121
8122/**
8123 * ipr_reset_timer_done - Adapter reset timer function
8124 * @ipr_cmd: ipr command struct
8125 *
8126 * Description: This function is used in adapter reset processing
8127 * for timing events. If the reset_cmd pointer in the IOA
8128 * config struct is not this adapter's we are doing nested
8129 * resets and fail_all_ops will take care of freeing the
8130 * command block.
8131 *
8132 * Return value:
8133 * none
8134 **/
8135static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
8136{
8137 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8138 unsigned long lock_flags = 0;
8139
8140 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8141
8142 if (ioa_cfg->reset_cmd == ipr_cmd) {
8143 list_del(&ipr_cmd->queue);
8144 ipr_cmd->done(ipr_cmd);
8145 }
8146
8147 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8148}
8149
8150/**
8151 * ipr_reset_start_timer - Start a timer for adapter reset job
8152 * @ipr_cmd: ipr command struct
8153 * @timeout: timeout value
8154 *
8155 * Description: This function is used in adapter reset processing
8156 * for timing events. If the reset_cmd pointer in the IOA
8157 * config struct is not this adapter's we are doing nested
8158 * resets and fail_all_ops will take care of freeing the
8159 * command block.
8160 *
8161 * Return value:
8162 * none
8163 **/
8164static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
8165 unsigned long timeout)
8166{
05a6538a 8167
8168 ENTER;
8169 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8170 ipr_cmd->done = ipr_reset_ioa_job;
8171
8172 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8173 ipr_cmd->timer.expires = jiffies + timeout;
8174 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
8175 add_timer(&ipr_cmd->timer);
8176}
8177
8178/**
8179 * ipr_init_ioa_mem - Initialize ioa_cfg control block
8180 * @ioa_cfg: ioa cfg struct
8181 *
8182 * Return value:
8183 * nothing
8184 **/
8185static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
8186{
05a6538a 8187 struct ipr_hrr_queue *hrrq;
1da177e4 8188
05a6538a 8189 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 8190 spin_lock(&hrrq->_lock);
05a6538a 8191 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
8192
8193 /* Initialize Host RRQ pointers */
8194 hrrq->hrrq_start = hrrq->host_rrq;
8195 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
8196 hrrq->hrrq_curr = hrrq->hrrq_start;
8197 hrrq->toggle_bit = 1;
56d6aa33 8198 spin_unlock(&hrrq->_lock);
05a6538a 8199 }
56d6aa33 8200 wmb();
05a6538a 8201
56d6aa33 8202 ioa_cfg->identify_hrrq_index = 0;
8203 if (ioa_cfg->hrrq_num == 1)
8204 atomic_set(&ioa_cfg->hrrq_index, 0);
8205 else
8206 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 8207
8208 /* Zero out config table */
3e7ebdfa 8209 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 8210}
8211
214777ba
WB		 8212/**
8213 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
8214 * @ipr_cmd: ipr command struct
8215 *
8216 * Return value:
8217 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8218 **/
8219static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
8220{
8221 unsigned long stage, stage_time;
8222 u32 feedback;
8223 volatile u32 int_reg;
8224 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8225 u64 maskval = 0;
8226
8227 feedback = readl(ioa_cfg->regs.init_feedback_reg);
8228 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
8229 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
8230
8231 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
8232
8233 /* sanity check the stage_time value */
438b0331
WB		 8234 if (stage_time == 0)
8235 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
8236 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 8237 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
8238 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
8239 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
8240
8241 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
8242 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
8243 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8244 stage_time = ioa_cfg->transop_timeout;
8245 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8246 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 8247 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
8248 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8249 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
8250 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8251 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
8252 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
8253 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8254 return IPR_RC_JOB_CONTINUE;
8255 }
214777ba
WB		 8256 }
8257
8258 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
8259 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
8260 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8261 ipr_cmd->done = ipr_reset_ioa_job;
8262 add_timer(&ipr_cmd->timer);
05a6538a 8263
8264 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 8265
8266 return IPR_RC_JOB_RETURN;
8267}
8268
1da177e4
LT		 8269/**
8270 * ipr_reset_enable_ioa - Enable the IOA following a reset.
8271 * @ipr_cmd: ipr command struct
8272 *
8273 * This function reinitializes some control blocks and
8274 * enables destructive diagnostics on the adapter.
8275 *
8276 * Return value:
8277 * IPR_RC_JOB_RETURN
8278 **/
8279static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
8280{
8281 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8282 volatile u32 int_reg;
7be96900 8283 volatile u64 maskval;
56d6aa33 8284 int i;
1da177e4
LT		 8285
8286 ENTER;
214777ba 8287 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 8288 ipr_init_ioa_mem(ioa_cfg);
8289
56d6aa33 8290 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8291 spin_lock(&ioa_cfg->hrrq[i]._lock);
8292 ioa_cfg->hrrq[i].allow_interrupts = 1;
8293 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8294 }
8295 wmb();
8701f185
WB		 8296 if (ioa_cfg->sis64) {
8297 /* Set the adapter to the correct endian mode. */
8298 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8299 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8300 }
8301
7be96900 8302 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 8303
8304 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
8305 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 8306 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 8307 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8308 return IPR_RC_JOB_CONTINUE;
8309 }
8310
8311 /* Enable destructive diagnostics on IOA */
214777ba
WB		 8312 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
8313
7be96900
WB		 8314 if (ioa_cfg->sis64) {
8315 maskval = IPR_PCII_IPL_STAGE_CHANGE;
8316 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
8317 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
8318 } else
8319 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 8320
1da177e4
LT		 8321 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8322
8323 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
8324
214777ba
WB		 8325 if (ioa_cfg->sis64) {
8326 ipr_cmd->job_step = ipr_reset_next_stage;
8327 return IPR_RC_JOB_CONTINUE;
8328 }
8329
1da177e4 8330 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 8331 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 8332 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
8333 ipr_cmd->done = ipr_reset_ioa_job;
8334 add_timer(&ipr_cmd->timer);
05a6538a 8335 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 8336
8337 LEAVE;
8338 return IPR_RC_JOB_RETURN;
8339}
8340
8341/**
8342 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
8343 * @ipr_cmd: ipr command struct
8344 *
8345 * This function is invoked when an adapter dump has run out
8346 * of processing time.
8347 *
8348 * Return value:
8349 * IPR_RC_JOB_CONTINUE
8350 **/
8351static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
8352{
8353 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8354
8355 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 8356 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8357 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 8358 ioa_cfg->sdt_state = ABORT_DUMP;
8359
4c647e90 8360 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 8361 ipr_cmd->job_step = ipr_reset_alert;
8362
8363 return IPR_RC_JOB_CONTINUE;
8364}
8365
8366/**
8367 * ipr_unit_check_no_data - Log a unit check/no data error log
8368 * @ioa_cfg: ioa config struct
8369 *
8370 * Logs an error indicating the adapter unit checked, but for some
8371 * reason, we were unable to fetch the unit check buffer.
8372 *
8373 * Return value:
8374 * nothing
8375 **/
8376static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8377{
8378 ioa_cfg->errors_logged++;
8379 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8380}
8381
8382/**
8383 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8384 * @ioa_cfg: ioa config struct
8385 *
8386 * Fetches the unit check buffer from the adapter by clocking the data
8387 * through the mailbox register.
8388 *
8389 * Return value:
8390 * nothing
8391 **/
8392static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8393{
8394 unsigned long mailbox;
8395 struct ipr_hostrcb *hostrcb;
8396 struct ipr_uc_sdt sdt;
8397 int rc, length;
65f56475 8398 u32 ioasc;
1da177e4
LT		 8399
8400 mailbox = readl(ioa_cfg->ioa_mailbox);
8401
dcbad00e 8402 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8403 ipr_unit_check_no_data(ioa_cfg);
8404 return;
8405 }
8406
8407 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8408 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8409 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8410
dcbad00e
WB		 8411 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8412 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8413 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8414 ipr_unit_check_no_data(ioa_cfg);
8415 return;
8416 }
8417
8418 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8419 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8420 length = be32_to_cpu(sdt.entry[0].end_token);
8421 else
8422 length = (be32_to_cpu(sdt.entry[0].end_token) -
8423 be32_to_cpu(sdt.entry[0].start_token)) &
8424 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8425
8426 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8427 struct ipr_hostrcb, queue);
afc3f83c 8428 list_del_init(&hostrcb->queue);
1da177e4
LT		 8429 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8430
8431 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8432 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8433 (__be32 *)&hostrcb->hcam,
8434 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8435
65f56475 8436 if (!rc) {
1da177e4 8437 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8438 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8439 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8440 ioa_cfg->sdt_state == GET_DUMP)
8441 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8442 } else
1da177e4
LT		 8443 ipr_unit_check_no_data(ioa_cfg);
8444
8445 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8446}
8447
110def85
WB		 8448/**
8449 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8450 * @ipr_cmd: ipr command struct
8451 *
8452 * Description: This function will call to get the unit check buffer.
8453 *
8454 * Return value:
8455 * IPR_RC_JOB_RETURN
8456 **/
8457static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8458{
8459 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8460
8461 ENTER;
8462 ioa_cfg->ioa_unit_checked = 0;
8463 ipr_get_unit_check_buffer(ioa_cfg);
8464 ipr_cmd->job_step = ipr_reset_alert;
8465 ipr_reset_start_timer(ipr_cmd, 0);
8466
8467 LEAVE;
8468 return IPR_RC_JOB_RETURN;
8469}
8470
f41f1d99
GKB		 8471static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd)
8472{
8473 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8474
8475 ENTER;
8476
8477 if (ioa_cfg->sdt_state != GET_DUMP)
8478 return IPR_RC_JOB_RETURN;
8479
8480 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left ||
8481 (readl(ioa_cfg->regs.sense_interrupt_reg) &
8482 IPR_PCII_MAILBOX_STABLE)) {
8483
8484 if (!ipr_cmd->u.time_left)
8485 dev_err(&ioa_cfg->pdev->dev,
8486 "Timed out waiting for Mailbox register.\n");
8487
8488 ioa_cfg->sdt_state = READ_DUMP;
8489 ioa_cfg->dump_timeout = 0;
8490 if (ioa_cfg->sis64)
8491 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8492 else
8493 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
8494 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8495 schedule_work(&ioa_cfg->work_q);
8496
8497 } else {
8498 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8499 ipr_reset_start_timer(ipr_cmd,
8500 IPR_CHECK_FOR_RESET_TIMEOUT);
8501 }
8502
8503 LEAVE;
8504 return IPR_RC_JOB_RETURN;
8505}
8506
1da177e4
LT		 8507/**
8508 * ipr_reset_restore_cfg_space - Restore PCI config space.
8509 * @ipr_cmd: ipr command struct
8510 *
8511 * Description: This function restores the saved PCI config space of
8512 * the adapter, fails all outstanding ops back to the callers, and
8513 * fetches the dump/unit check if applicable to this reset.
8514 *
8515 * Return value:
8516 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8517 **/
8518static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8519{
8520 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8521 u32 int_reg;
1da177e4
LT		 8522
8523 ENTER;
99c965dd 8524 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8525 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8526
8527 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8528 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8529 return IPR_RC_JOB_CONTINUE;
8530 }
8531
8532 ipr_fail_all_ops(ioa_cfg);
8533
8701f185
WB		 8534 if (ioa_cfg->sis64) {
8535 /* Set the adapter to the correct endian mode. */
8536 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8537 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8538 }
8539
1da177e4 8540 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8541 if (ioa_cfg->sis64) {
8542 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8543 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8544 return IPR_RC_JOB_RETURN;
8545 } else {
8546 ioa_cfg->ioa_unit_checked = 0;
8547 ipr_get_unit_check_buffer(ioa_cfg);
8548 ipr_cmd->job_step = ipr_reset_alert;
8549 ipr_reset_start_timer(ipr_cmd, 0);
8550 return IPR_RC_JOB_RETURN;
8551 }
1da177e4
LT		 8552 }
8553
8554 if (ioa_cfg->in_ioa_bringdown) {
8555 ipr_cmd->job_step = ipr_ioa_bringdown_done;
f41f1d99
GKB		 8556 } else if (ioa_cfg->sdt_state == GET_DUMP) {
8557 ipr_cmd->job_step = ipr_dump_mailbox_wait;
8558 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX;
1da177e4
LT		 8559 } else {
8560 ipr_cmd->job_step = ipr_reset_enable_ioa;
1da177e4
LT		 8561 }
8562
438b0331 8563 LEAVE;
1da177e4
LT		 8564 return IPR_RC_JOB_CONTINUE;
8565}
8566
e619e1a7
BK		 8567/**
8568 * ipr_reset_bist_done - BIST has completed on the adapter.
8569 * @ipr_cmd: ipr command struct
8570 *
8571 * Description: Unblock config space and resume the reset process.
8572 *
8573 * Return value:
8574 * IPR_RC_JOB_CONTINUE
8575 **/
8576static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8577{
fb51ccbf
JK		 8578 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8579
e619e1a7 8580 ENTER;
fb51ccbf
JK		 8581 if (ioa_cfg->cfg_locked)
8582 pci_cfg_access_unlock(ioa_cfg->pdev);
8583 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8584 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8585 LEAVE;
8586 return IPR_RC_JOB_CONTINUE;
8587}
8588
1da177e4
LT		 8589/**
8590 * ipr_reset_start_bist - Run BIST on the adapter.
8591 * @ipr_cmd: ipr command struct
8592 *
8593 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8594 *
8595 * Return value:
8596 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8597 **/
8598static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8599{
8600 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8601 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8602
8603 ENTER;
cb237ef7
WB		 8604 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8605 writel(IPR_UPROCI_SIS64_START_BIST,
8606 ioa_cfg->regs.set_uproc_interrupt_reg32);
8607 else
8608 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8609
8610 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8611 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8612 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8613 rc = IPR_RC_JOB_RETURN;
cb237ef7 8614 } else {
fb51ccbf
JK		 8615 if (ioa_cfg->cfg_locked)
8616 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8617 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8618 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8619 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8620 }
8621
8622 LEAVE;
8623 return rc;
8624}
8625
463fc696
BK		 8626/**
8627 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8628 * @ipr_cmd: ipr command struct
8629 *
8630 * Description: This clears PCI reset to the adapter and delays two seconds.
8631 *
8632 * Return value:
8633 * IPR_RC_JOB_RETURN
8634 **/
8635static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8636{
8637 ENTER;
463fc696
BK		 8638 ipr_cmd->job_step = ipr_reset_bist_done;
8639 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8640 LEAVE;
8641 return IPR_RC_JOB_RETURN;
8642}
8643
2796ca5e
BK		 8644/**
8645 * ipr_reset_reset_work - Pulse a PCIe fundamental reset
8646 * @work: work struct
8647 *
8648 * Description: This pulses warm reset to a slot.
8649 *
8650 **/
8651static void ipr_reset_reset_work(struct work_struct *work)
8652{
8653 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work);
8654 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8655 struct pci_dev *pdev = ioa_cfg->pdev;
8656 unsigned long lock_flags = 0;
8657
8658 ENTER;
8659 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8660 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT));
8661 pci_set_pcie_reset_state(pdev, pcie_deassert_reset);
8662
8663 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8664 if (ioa_cfg->reset_cmd == ipr_cmd)
8665 ipr_reset_ioa_job(ipr_cmd);
8666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8667 LEAVE;
8668}
8669
463fc696
BK		 8670/**
8671 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8672 * @ipr_cmd: ipr command struct
8673 *
8674 * Description: This asserts PCI reset to the adapter.
8675 *
8676 * Return value:
8677 * IPR_RC_JOB_RETURN
8678 **/
8679static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8680{
8681 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
463fc696
BK		 8682
8683 ENTER;
2796ca5e
BK		 8684 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work);
8685 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work);
463fc696 8686 ipr_cmd->job_step = ipr_reset_slot_reset_done;
463fc696
BK		 8687 LEAVE;
8688 return IPR_RC_JOB_RETURN;
8689}
8690
fb51ccbf
JK		 8691/**
8692 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8693 * @ipr_cmd: ipr command struct
8694 *
8695 * Description: This attempts to block config access to the IOA.
8696 *
8697 * Return value:
8698 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8699 **/
8700static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8701{
8702 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8703 int rc = IPR_RC_JOB_CONTINUE;
8704
8705 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8706 ioa_cfg->cfg_locked = 1;
8707 ipr_cmd->job_step = ioa_cfg->reset;
8708 } else {
8709 if (ipr_cmd->u.time_left) {
8710 rc = IPR_RC_JOB_RETURN;
8711 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8712 ipr_reset_start_timer(ipr_cmd,
8713 IPR_CHECK_FOR_RESET_TIMEOUT);
8714 } else {
8715 ipr_cmd->job_step = ioa_cfg->reset;
8716 dev_err(&ioa_cfg->pdev->dev,
8717 "Timed out waiting to lock config access. Resetting anyway.\n");
8718 }
8719 }
8720
8721 return rc;
8722}
8723
8724/**
8725 * ipr_reset_block_config_access - Block config access to the IOA
8726 * @ipr_cmd: ipr command struct
8727 *
8728 * Description: This attempts to block config access to the IOA
8729 *
8730 * Return value:
8731 * IPR_RC_JOB_CONTINUE
8732 **/
8733static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8734{
8735 ipr_cmd->ioa_cfg->cfg_locked = 0;
8736 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8737 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8738 return IPR_RC_JOB_CONTINUE;
8739}
8740
1da177e4
LT		 8741/**
8742 * ipr_reset_allowed - Query whether or not IOA can be reset
8743 * @ioa_cfg: ioa config struct
8744 *
8745 * Return value:
8746 * 0 if reset not allowed / non-zero if reset is allowed
8747 **/
8748static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8749{
8750 volatile u32 temp_reg;
8751
8752 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8753 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8754}
8755
8756/**
8757 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8758 * @ipr_cmd: ipr command struct
8759 *
8760 * Description: This function waits for adapter permission to run BIST,
8761 * then runs BIST. If the adapter does not give permission after a
8762 * reasonable time, we will reset the adapter anyway. The impact of
8763 * resetting the adapter without warning the adapter is the risk of
8764 * losing the persistent error log on the adapter. If the adapter is
8765 * reset while it is writing to the flash on the adapter, the flash
8766 * segment will have bad ECC and be zeroed.
8767 *
8768 * Return value:
8769 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8770 **/
8771static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8772{
8773 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8774 int rc = IPR_RC_JOB_RETURN;
8775
8776 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8777 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8778 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8779 } else {
fb51ccbf 8780 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8781 rc = IPR_RC_JOB_CONTINUE;
8782 }
8783
8784 return rc;
8785}
8786
8787/**
8701f185 8788 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8789 * @ipr_cmd: ipr command struct
8790 *
8791 * Description: This function alerts the adapter that it will be reset.
8792 * If memory space is not currently enabled, proceed directly
8793 * to running BIST on the adapter. The timer must always be started
8794 * so we guarantee we do not run BIST from ipr_isr.
8795 *
8796 * Return value:
8797 * IPR_RC_JOB_RETURN
8798 **/
8799static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8800{
8801 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8802 u16 cmd_reg;
8803 int rc;
8804
8805 ENTER;
8806 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8807
8808 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8809 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8810 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8811 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8812 } else {
fb51ccbf 8813 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8814 }
8815
8816 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8817 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8818
8819 LEAVE;
8820 return IPR_RC_JOB_RETURN;
8821}
8822
4fdd7c7a
BK		 8823/**
8824 * ipr_reset_quiesce_done - Complete IOA disconnect
8825 * @ipr_cmd: ipr command struct
8826 *
8827 * Description: Freeze the adapter to complete quiesce processing
8828 *
8829 * Return value:
8830 * IPR_RC_JOB_CONTINUE
8831 **/
8832static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd)
8833{
8834 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8835
8836 ENTER;
8837 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8838 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8839 LEAVE;
8840 return IPR_RC_JOB_CONTINUE;
8841}
8842
8843/**
8844 * ipr_reset_cancel_hcam_done - Check for outstanding commands
8845 * @ipr_cmd: ipr command struct
8846 *
8847 * Description: Ensure nothing is outstanding to the IOA and
8848 * proceed with IOA disconnect. Otherwise reset the IOA.
8849 *
8850 * Return value:
8851 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE
8852 **/
8853static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd)
8854{
8855 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8856 struct ipr_cmnd *loop_cmd;
8857 struct ipr_hrr_queue *hrrq;
8858 int rc = IPR_RC_JOB_CONTINUE;
8859 int count = 0;
8860
8861 ENTER;
8862 ipr_cmd->job_step = ipr_reset_quiesce_done;
8863
8864 for_each_hrrq(hrrq, ioa_cfg) {
8865 spin_lock(&hrrq->_lock);
8866 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) {
8867 count++;
8868 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8869 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
8870 rc = IPR_RC_JOB_RETURN;
8871 break;
8872 }
8873 spin_unlock(&hrrq->_lock);
8874
8875 if (count)
8876 break;
8877 }
8878
8879 LEAVE;
8880 return rc;
8881}
8882
8883/**
8884 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs
8885 * @ipr_cmd: ipr command struct
8886 *
8887 * Description: Cancel any oustanding HCAMs to the IOA.
8888 *
8889 * Return value:
8890 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8891 **/
8892static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd)
8893{
8894 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8895 int rc = IPR_RC_JOB_CONTINUE;
8896 struct ipr_cmd_pkt *cmd_pkt;
8897 struct ipr_cmnd *hcam_cmd;
8898 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ];
8899
8900 ENTER;
8901 ipr_cmd->job_step = ipr_reset_cancel_hcam_done;
8902
8903 if (!hrrq->ioa_is_dead) {
8904 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) {
8905 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) {
8906 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC)
8907 continue;
8908
8909 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8910 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8911 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
8912 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
8913 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST;
8914 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB;
8915 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff;
8916 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff;
8917 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff;
8918 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff;
8919 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff;
8920 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff;
8921 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff;
8922 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff;
8923
8924 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8925 IPR_CANCEL_TIMEOUT);
8926
8927 rc = IPR_RC_JOB_RETURN;
8928 ipr_cmd->job_step = ipr_reset_cancel_hcam;
8929 break;
8930 }
8931 }
8932 } else
8933 ipr_cmd->job_step = ipr_reset_alert;
8934
8935 LEAVE;
8936 return rc;
8937}
8938
1da177e4
LT		 8939/**
8940 * ipr_reset_ucode_download_done - Microcode download completion
8941 * @ipr_cmd: ipr command struct
8942 *
8943 * Description: This function unmaps the microcode download buffer.
8944 *
8945 * Return value:
8946 * IPR_RC_JOB_CONTINUE
8947 **/
8948static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8949{
8950 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8951 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8952
d73341bf 8953 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 8954 sglist->num_sg, DMA_TO_DEVICE);
8955
8956 ipr_cmd->job_step = ipr_reset_alert;
8957 return IPR_RC_JOB_CONTINUE;
8958}
8959
8960/**
8961 * ipr_reset_ucode_download - Download microcode to the adapter
8962 * @ipr_cmd: ipr command struct
8963 *
8964 * Description: This function checks to see if it there is microcode
8965 * to download to the adapter. If there is, a download is performed.
8966 *
8967 * Return value:
8968 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8969 **/
8970static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8971{
8972 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8973 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8974
8975 ENTER;
8976 ipr_cmd->job_step = ipr_reset_alert;
8977
8978 if (!sglist)
8979 return IPR_RC_JOB_CONTINUE;
8980
8981 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8982 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8983 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8984 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8985 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8986 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8987 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8988
a32c055f
WB		 8989 if (ioa_cfg->sis64)
8990 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8991 else
8992 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8993 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8994
8995 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8996 IPR_WRITE_BUFFER_TIMEOUT);
8997
8998 LEAVE;
8999 return IPR_RC_JOB_RETURN;
9000}
9001
9002/**
9003 * ipr_reset_shutdown_ioa - Shutdown the adapter
9004 * @ipr_cmd: ipr command struct
9005 *
9006 * Description: This function issues an adapter shutdown of the
9007 * specified type to the specified adapter as part of the
9008 * adapter reset job.
9009 *
9010 * Return value:
9011 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
9012 **/
9013static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
9014{
9015 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9016 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
9017 unsigned long timeout;
9018 int rc = IPR_RC_JOB_CONTINUE;
9019
9020 ENTER;
4fdd7c7a
BK		 9021 if (shutdown_type == IPR_SHUTDOWN_QUIESCE)
9022 ipr_cmd->job_step = ipr_reset_cancel_hcam;
9023 else if (shutdown_type != IPR_SHUTDOWN_NONE &&
56d6aa33 9024 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 9025 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9026 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9027 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9028 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
9029
ac09c349
BK		 9030 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
9031 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 9032 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
9033 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 9034 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
9035 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 9036 else
ac09c349 9037 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 9038
9039 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
9040
9041 rc = IPR_RC_JOB_RETURN;
9042 ipr_cmd->job_step = ipr_reset_ucode_download;
9043 } else
9044 ipr_cmd->job_step = ipr_reset_alert;
9045
9046 LEAVE;
9047 return rc;
9048}
9049
9050/**
9051 * ipr_reset_ioa_job - Adapter reset job
9052 * @ipr_cmd: ipr command struct
9053 *
9054 * Description: This function is the job router for the adapter reset job.
9055 *
9056 * Return value:
9057 * none
9058 **/
9059static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
9060{
9061 u32 rc, ioasc;
1da177e4
LT		 9062 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9063
9064 do {
96d21f00 9065 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 9066
9067 if (ioa_cfg->reset_cmd != ipr_cmd) {
9068 /*
9069 * We are doing nested adapter resets and this is
9070 * not the current reset job.
9071 */
05a6538a 9072 list_add_tail(&ipr_cmd->queue,
9073 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 9074 return;
9075 }
9076
9077 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 9078 rc = ipr_cmd->job_step_failed(ipr_cmd);
9079 if (rc == IPR_RC_JOB_RETURN)
9080 return;
1da177e4
LT		 9081 }
9082
9083 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 9084 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 9085 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 9086 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 9087}
9088
9089/**
9090 * _ipr_initiate_ioa_reset - Initiate an adapter reset
9091 * @ioa_cfg: ioa config struct
9092 * @job_step: first job step of reset job
9093 * @shutdown_type: shutdown type
9094 *
9095 * Description: This function will initiate the reset of the given adapter
9096 * starting at the selected job step.
9097 * If the caller needs to wait on the completion of the reset,
9098 * the caller must sleep on the reset_wait_q.
9099 *
9100 * Return value:
9101 * none
9102 **/
9103static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9104 int (*job_step) (struct ipr_cmnd *),
9105 enum ipr_shutdown_type shutdown_type)
9106{
9107 struct ipr_cmnd *ipr_cmd;
56d6aa33 9108 int i;
1da177e4
LT		 9109
9110 ioa_cfg->in_reset_reload = 1;
56d6aa33 9111 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9112 spin_lock(&ioa_cfg->hrrq[i]._lock);
9113 ioa_cfg->hrrq[i].allow_cmds = 0;
9114 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9115 }
9116 wmb();
bfae7820
BK		 9117 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
9118 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 9119
9120 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9121 ioa_cfg->reset_cmd = ipr_cmd;
9122 ipr_cmd->job_step = job_step;
9123 ipr_cmd->u.shutdown_type = shutdown_type;
9124
9125 ipr_reset_ioa_job(ipr_cmd);
9126}
9127
9128/**
9129 * ipr_initiate_ioa_reset - Initiate an adapter reset
9130 * @ioa_cfg: ioa config struct
9131 * @shutdown_type: shutdown type
9132 *
9133 * Description: This function will initiate the reset of the given adapter.
9134 * If the caller needs to wait on the completion of the reset,
9135 * the caller must sleep on the reset_wait_q.
9136 *
9137 * Return value:
9138 * none
9139 **/
9140static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
9141 enum ipr_shutdown_type shutdown_type)
9142{
56d6aa33 9143 int i;
9144
9145 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 9146 return;
9147
41e9a696
BK		 9148 if (ioa_cfg->in_reset_reload) {
9149 if (ioa_cfg->sdt_state == GET_DUMP)
9150 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9151 else if (ioa_cfg->sdt_state == READ_DUMP)
9152 ioa_cfg->sdt_state = ABORT_DUMP;
9153 }
1da177e4
LT		 9154
9155 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
9156 dev_err(&ioa_cfg->pdev->dev,
9157 "IOA taken offline - error recovery failed\n");
9158
9159 ioa_cfg->reset_retries = 0;
56d6aa33 9160 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9161 spin_lock(&ioa_cfg->hrrq[i]._lock);
9162 ioa_cfg->hrrq[i].ioa_is_dead = 1;
9163 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9164 }
9165 wmb();
1da177e4
LT		 9166
9167 if (ioa_cfg->in_ioa_bringdown) {
9168 ioa_cfg->reset_cmd = NULL;
9169 ioa_cfg->in_reset_reload = 0;
9170 ipr_fail_all_ops(ioa_cfg);
9171 wake_up_all(&ioa_cfg->reset_wait_q);
9172
bfae7820
BK		 9173 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
9174 spin_unlock_irq(ioa_cfg->host->host_lock);
9175 scsi_unblock_requests(ioa_cfg->host);
9176 spin_lock_irq(ioa_cfg->host->host_lock);
9177 }
1da177e4
LT		 9178 return;
9179 } else {
9180 ioa_cfg->in_ioa_bringdown = 1;
9181 shutdown_type = IPR_SHUTDOWN_NONE;
9182 }
9183 }
9184
9185 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
9186 shutdown_type);
9187}
9188
f8a88b19
LV		 9189/**
9190 * ipr_reset_freeze - Hold off all I/O activity
9191 * @ipr_cmd: ipr command struct
9192 *
9193 * Description: If the PCI slot is frozen, hold off all I/O
9194 * activity; then, as soon as the slot is available again,
9195 * initiate an adapter reset.
9196 */
9197static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
9198{
56d6aa33 9199 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9200 int i;
9201
f8a88b19 9202 /* Disallow new interrupts, avoid loop */
56d6aa33 9203 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9204 spin_lock(&ioa_cfg->hrrq[i]._lock);
9205 ioa_cfg->hrrq[i].allow_interrupts = 0;
9206 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9207 }
9208 wmb();
05a6538a 9209 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 9210 ipr_cmd->done = ipr_reset_ioa_job;
9211 return IPR_RC_JOB_RETURN;
9212}
9213
6270e593
BK		 9214/**
9215 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
9216 * @pdev: PCI device struct
9217 *
9218 * Description: This routine is called to tell us that the MMIO
9219 * access to the IOA has been restored
9220 */
9221static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
9222{
9223 unsigned long flags = 0;
9224 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9225
9226 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9227 if (!ioa_cfg->probe_done)
9228 pci_save_state(pdev);
9229 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9230 return PCI_ERS_RESULT_NEED_RESET;
9231}
9232
f8a88b19
LV		 9233/**
9234 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
9235 * @pdev: PCI device struct
9236 *
9237 * Description: This routine is called to tell us that the PCI bus
9238 * is down. Can't do anything here, except put the device driver
9239 * into a holding pattern, waiting for the PCI bus to come back.
9240 */
9241static void ipr_pci_frozen(struct pci_dev *pdev)
9242{
9243 unsigned long flags = 0;
9244 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9245
9246 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9247 if (ioa_cfg->probe_done)
9248 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 9249 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9250}
9251
9252/**
9253 * ipr_pci_slot_reset - Called when PCI slot has been reset.
9254 * @pdev: PCI device struct
9255 *
9256 * Description: This routine is called by the pci error recovery
9257 * code after the PCI slot has been reset, just before we
9258 * should resume normal operations.
9259 */
9260static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
9261{
9262 unsigned long flags = 0;
9263 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9264
9265 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9266 if (ioa_cfg->probe_done) {
9267 if (ioa_cfg->needs_warm_reset)
9268 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9269 else
9270 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
9271 IPR_SHUTDOWN_NONE);
9272 } else
9273 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9275 return PCI_ERS_RESULT_RECOVERED;
9276}
9277
9278/**
9279 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
9280 * @pdev: PCI device struct
9281 *
9282 * Description: This routine is called when the PCI bus has
9283 * permanently failed.
9284 */
9285static void ipr_pci_perm_failure(struct pci_dev *pdev)
9286{
9287 unsigned long flags = 0;
9288 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 9289 int i;
f8a88b19
LV		 9290
9291 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 9292 if (ioa_cfg->probe_done) {
9293 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9294 ioa_cfg->sdt_state = ABORT_DUMP;
9295 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
9296 ioa_cfg->in_ioa_bringdown = 1;
9297 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9298 spin_lock(&ioa_cfg->hrrq[i]._lock);
9299 ioa_cfg->hrrq[i].allow_cmds = 0;
9300 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9301 }
9302 wmb();
9303 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9304 } else
9305 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 9306 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9307}
9308
9309/**
9310 * ipr_pci_error_detected - Called when a PCI error is detected.
9311 * @pdev: PCI device struct
9312 * @state: PCI channel state
9313 *
9314 * Description: Called when a PCI error is detected.
9315 *
9316 * Return value:
9317 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
9318 */
9319static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
9320 pci_channel_state_t state)
9321{
9322 switch (state) {
9323 case pci_channel_io_frozen:
9324 ipr_pci_frozen(pdev);
6270e593 9325 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 9326 case pci_channel_io_perm_failure:
9327 ipr_pci_perm_failure(pdev);
9328 return PCI_ERS_RESULT_DISCONNECT;
9329 break;
9330 default:
9331 break;
9332 }
9333 return PCI_ERS_RESULT_NEED_RESET;
9334}
9335
1da177e4
LT		 9336/**
9337 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
9338 * @ioa_cfg: ioa cfg struct
9339 *
183b8021 9340 * Description: This is the second phase of adapter initialization
1da177e4
LT		 9341 * This function takes care of initilizing the adapter to the point
9342 * where it can accept new commands.
9343
9344 * Return value:
b1c11812 9345 * 0 on success / -EIO on failure
1da177e4 9346 **/
6f039790 9347static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9348{
9349 int rc = 0;
9350 unsigned long host_lock_flags = 0;
9351
9352 ENTER;
9353 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9354 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 9355 ioa_cfg->probe_done = 1;
ce155cce
BK		 9356 if (ioa_cfg->needs_hard_reset) {
9357 ioa_cfg->needs_hard_reset = 0;
9358 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
9359 } else
9360 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
9361 IPR_SHUTDOWN_NONE);
1da177e4 9362 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
1da177e4
LT		 9363
9364 LEAVE;
9365 return rc;
9366}
9367
9368/**
9369 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
9370 * @ioa_cfg: ioa config struct
9371 *
9372 * Return value:
9373 * none
9374 **/
9375static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
9376{
9377 int i;
9378
a65e8f12
BK		 9379 if (ioa_cfg->ipr_cmnd_list) {
9380 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
9381 if (ioa_cfg->ipr_cmnd_list[i])
9382 dma_pool_free(ioa_cfg->ipr_cmd_pool,
9383 ioa_cfg->ipr_cmnd_list[i],
9384 ioa_cfg->ipr_cmnd_list_dma[i]);
1da177e4 9385
a65e8f12
BK		 9386 ioa_cfg->ipr_cmnd_list[i] = NULL;
9387 }
1da177e4
LT		 9388 }
9389
9390 if (ioa_cfg->ipr_cmd_pool)
d73341bf 9391 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 9392
89aad428
BK		 9393 kfree(ioa_cfg->ipr_cmnd_list);
9394 kfree(ioa_cfg->ipr_cmnd_list_dma);
9395 ioa_cfg->ipr_cmnd_list = NULL;
9396 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 9397 ioa_cfg->ipr_cmd_pool = NULL;
9398}
9399
9400/**
9401 * ipr_free_mem - Frees memory allocated for an adapter
9402 * @ioa_cfg: ioa cfg struct
9403 *
9404 * Return value:
9405 * nothing
9406 **/
9407static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
9408{
9409 int i;
9410
9411 kfree(ioa_cfg->res_entries);
d73341bf
AB		 9412 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
9413 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 9414 ipr_free_cmd_blks(ioa_cfg);
05a6538a 9415
9416 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 9417 dma_free_coherent(&ioa_cfg->pdev->dev,
9418 sizeof(u32) * ioa_cfg->hrrq[i].size,
9419 ioa_cfg->hrrq[i].host_rrq,
9420 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9421
d73341bf
AB		 9422 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
9423 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9424
afc3f83c 9425 for (i = 0; i < IPR_MAX_HCAMS; i++) {
d73341bf
AB		 9426 dma_free_coherent(&ioa_cfg->pdev->dev,
9427 sizeof(struct ipr_hostrcb),
9428 ioa_cfg->hostrcb[i],
9429 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 9430 }
9431
9432 ipr_free_dump(ioa_cfg);
1da177e4
LT		 9433 kfree(ioa_cfg->trace);
9434}
9435
9436/**
2796ca5e
BK		 9437 * ipr_free_irqs - Free all allocated IRQs for the adapter.
9438 * @ioa_cfg: ipr cfg struct
1da177e4 9439 *
2796ca5e 9440 * This function frees all allocated IRQs for the
1da177e4
LT		 9441 * specified adapter.
9442 *
9443 * Return value:
9444 * none
9445 **/
2796ca5e 9446static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9447{
9448 struct pci_dev *pdev = ioa_cfg->pdev;
a299ee62 9449 int i;
1da177e4 9450
a299ee62
CH		 9451 for (i = 0; i < ioa_cfg->nvectors; i++)
9452 free_irq(pci_irq_vector(pdev, i), &ioa_cfg->hrrq[i]);
9453 pci_free_irq_vectors(pdev);
2796ca5e 9454}
05a6538a 9455
2796ca5e
BK		 9456/**
9457 * ipr_free_all_resources - Free all allocated resources for an adapter.
9458 * @ipr_cmd: ipr command struct
9459 *
9460 * This function frees all allocated resources for the
9461 * specified adapter.
9462 *
9463 * Return value:
9464 * none
9465 **/
9466static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
9467{
9468 struct pci_dev *pdev = ioa_cfg->pdev;
05a6538a 9469
2796ca5e
BK		 9470 ENTER;
9471 ipr_free_irqs(ioa_cfg);
9472 if (ioa_cfg->reset_work_q)
9473 destroy_workqueue(ioa_cfg->reset_work_q);
1da177e4
LT		 9474 iounmap(ioa_cfg->hdw_dma_regs);
9475 pci_release_regions(pdev);
9476 ipr_free_mem(ioa_cfg);
9477 scsi_host_put(ioa_cfg->host);
9478 pci_disable_device(pdev);
9479 LEAVE;
9480}
9481
9482/**
9483 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
9484 * @ioa_cfg: ioa config struct
9485 *
9486 * Return value:
9487 * 0 on success / -ENOMEM on allocation failure
9488 **/
6f039790 9489static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9490{
9491 struct ipr_cmnd *ipr_cmd;
9492 struct ipr_ioarcb *ioarcb;
9493 dma_addr_t dma_addr;
05a6538a 9494 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 9495
d73341bf 9496 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 9497 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 9498
9499 if (!ioa_cfg->ipr_cmd_pool)
9500 return -ENOMEM;
9501
89aad428
BK		 9502 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
9503 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
9504
9505 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
9506 ipr_free_cmd_blks(ioa_cfg);
9507 return -ENOMEM;
9508 }
9509
05a6538a 9510 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9511 if (ioa_cfg->hrrq_num > 1) {
9512 if (i == 0) {
9513 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
9514 ioa_cfg->hrrq[i].min_cmd_id = 0;
9515 ioa_cfg->hrrq[i].max_cmd_id =
9516 (entries_each_hrrq - 1);
9517 } else {
9518 entries_each_hrrq =
9519 IPR_NUM_BASE_CMD_BLKS/
9520 (ioa_cfg->hrrq_num - 1);
9521 ioa_cfg->hrrq[i].min_cmd_id =
9522 IPR_NUM_INTERNAL_CMD_BLKS +
9523 (i - 1) * entries_each_hrrq;
9524 ioa_cfg->hrrq[i].max_cmd_id =
9525 (IPR_NUM_INTERNAL_CMD_BLKS +
9526 i * entries_each_hrrq - 1);
9527 }
9528 } else {
9529 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9530 ioa_cfg->hrrq[i].min_cmd_id = 0;
9531 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9532 }
9533 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9534 }
9535
9536 BUG_ON(ioa_cfg->hrrq_num == 0);
9537
9538 i = IPR_NUM_CMD_BLKS -
9539 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9540 if (i > 0) {
9541 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9542 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9543 }
9544
1da177e4 9545 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 9546 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 9547
9548 if (!ipr_cmd) {
9549 ipr_free_cmd_blks(ioa_cfg);
9550 return -ENOMEM;
9551 }
9552
9553 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9554 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9555 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9556
9557 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9558 ipr_cmd->dma_addr = dma_addr;
9559 if (ioa_cfg->sis64)
9560 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9561 else
9562 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9563
1da177e4 9564 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9565 if (ioa_cfg->sis64) {
9566 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9567 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9568 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9569 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9570 } else {
9571 ioarcb->write_ioadl_addr =
9572 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9573 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9574 ioarcb->ioasa_host_pci_addr =
96d21f00 9575 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9576 }
1da177e4
LT		 9577 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9578 ipr_cmd->cmd_index = i;
9579 ipr_cmd->ioa_cfg = ioa_cfg;
9580 ipr_cmd->sense_buffer_dma = dma_addr +
9581 offsetof(struct ipr_cmnd, sense_buffer);
9582
05a6538a 9583 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9584 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9585 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9586 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9587 hrrq_id++;
1da177e4
LT		 9588 }
9589
9590 return 0;
9591}
9592
9593/**
9594 * ipr_alloc_mem - Allocate memory for an adapter
9595 * @ioa_cfg: ioa config struct
9596 *
9597 * Return value:
9598 * 0 on success / non-zero for error
9599 **/
6f039790 9600static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9601{
9602 struct pci_dev *pdev = ioa_cfg->pdev;
9603 int i, rc = -ENOMEM;
9604
9605 ENTER;
0bc42e35 9606 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9607 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9608
9609 if (!ioa_cfg->res_entries)
9610 goto out;
9611
3e7ebdfa 9612 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9613 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9614 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9615 }
1da177e4 9616
d73341bf
AB		 9617 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9618 sizeof(struct ipr_misc_cbs),
9619 &ioa_cfg->vpd_cbs_dma,
9620 GFP_KERNEL);
1da177e4
LT		 9621
9622 if (!ioa_cfg->vpd_cbs)
9623 goto out_free_res_entries;
9624
9625 if (ipr_alloc_cmd_blks(ioa_cfg))
9626 goto out_free_vpd_cbs;
9627
05a6538a 9628 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9629 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9630 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9631 &ioa_cfg->hrrq[i].host_rrq_dma,
9632 GFP_KERNEL);
05a6538a 9633
9634 if (!ioa_cfg->hrrq[i].host_rrq) {
9635 while (--i > 0)
d73341bf 9636 dma_free_coherent(&pdev->dev,
05a6538a 9637 sizeof(u32) * ioa_cfg->hrrq[i].size,
9638 ioa_cfg->hrrq[i].host_rrq,
9639 ioa_cfg->hrrq[i].host_rrq_dma);
9640 goto out_ipr_free_cmd_blocks;
9641 }
9642 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9643 }
1da177e4 9644
d73341bf
AB		 9645 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9646 ioa_cfg->cfg_table_size,
9647 &ioa_cfg->cfg_table_dma,
9648 GFP_KERNEL);
1da177e4 9649
3e7ebdfa 9650 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9651 goto out_free_host_rrq;
9652
afc3f83c 9653 for (i = 0; i < IPR_MAX_HCAMS; i++) {
d73341bf
AB		 9654 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9655 sizeof(struct ipr_hostrcb),
9656 &ioa_cfg->hostrcb_dma[i],
9657 GFP_KERNEL);
1da177e4
LT		 9658
9659 if (!ioa_cfg->hostrcb[i])
9660 goto out_free_hostrcb_dma;
9661
9662 ioa_cfg->hostrcb[i]->hostrcb_dma =
9663 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9664 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9665 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9666 }
9667
0bc42e35 9668 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9669 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9670
9671 if (!ioa_cfg->trace)
9672 goto out_free_hostrcb_dma;
9673
1da177e4
LT		 9674 rc = 0;
9675out:
9676 LEAVE;
9677 return rc;
9678
9679out_free_hostrcb_dma:
9680 while (i-- > 0) {
d73341bf
AB		 9681 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9682 ioa_cfg->hostrcb[i],
9683 ioa_cfg->hostrcb_dma[i]);
1da177e4 9684 }
d73341bf
AB		 9685 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9686 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9687out_free_host_rrq:
05a6538a 9688 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9689 dma_free_coherent(&pdev->dev,
9690 sizeof(u32) * ioa_cfg->hrrq[i].size,
9691 ioa_cfg->hrrq[i].host_rrq,
9692 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9693 }
1da177e4
LT		 9694out_ipr_free_cmd_blocks:
9695 ipr_free_cmd_blks(ioa_cfg);
9696out_free_vpd_cbs:
d73341bf
AB		 9697 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9698 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9699out_free_res_entries:
9700 kfree(ioa_cfg->res_entries);
9701 goto out;
9702}
9703
9704/**
9705 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9706 * @ioa_cfg: ioa config struct
9707 *
9708 * Return value:
9709 * none
9710 **/
6f039790 9711static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9712{
9713 int i;
9714
9715 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9716 ioa_cfg->bus_attr[i].bus = i;
9717 ioa_cfg->bus_attr[i].qas_enabled = 0;
9718 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9719 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9720 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9721 else
9722 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9723 }
9724}
9725
6270e593
BK		 9726/**
9727 * ipr_init_regs - Initialize IOA registers
9728 * @ioa_cfg: ioa config struct
9729 *
9730 * Return value:
9731 * none
9732 **/
9733static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9734{
9735 const struct ipr_interrupt_offsets *p;
9736 struct ipr_interrupts *t;
9737 void __iomem *base;
9738
9739 p = &ioa_cfg->chip_cfg->regs;
9740 t = &ioa_cfg->regs;
9741 base = ioa_cfg->hdw_dma_regs;
9742
9743 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9744 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9745 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9746 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9747 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9748 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9749 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9750 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9751 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9752 t->ioarrin_reg = base + p->ioarrin_reg;
9753 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9754 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9755 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9756 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9757 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9758 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9759
9760 if (ioa_cfg->sis64) {
9761 t->init_feedback_reg = base + p->init_feedback_reg;
9762 t->dump_addr_reg = base + p->dump_addr_reg;
9763 t->dump_data_reg = base + p->dump_data_reg;
9764 t->endian_swap_reg = base + p->endian_swap_reg;
9765 }
9766}
9767
1da177e4
LT		 9768/**
9769 * ipr_init_ioa_cfg - Initialize IOA config struct
9770 * @ioa_cfg: ioa config struct
9771 * @host: scsi host struct
9772 * @pdev: PCI dev struct
9773 *
9774 * Return value:
9775 * none
9776 **/
6f039790
GKH		 9777static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9778 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9779{
6270e593 9780 int i;
1da177e4
LT		 9781
9782 ioa_cfg->host = host;
9783 ioa_cfg->pdev = pdev;
9784 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9785 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9786 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9787 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9788 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9789 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9790 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9791 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9792
1da177e4
LT		 9793 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9794 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
afc3f83c 9795 INIT_LIST_HEAD(&ioa_cfg->hostrcb_report_q);
1da177e4
LT		 9796 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9797 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9798 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9799 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9800 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9801 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9802 ioa_cfg->sdt_state = INACTIVE;
9803
9804 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9805 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9806
3e7ebdfa
WB		 9807 if (ioa_cfg->sis64) {
9808 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9809 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9810 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9811 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9812 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9813 + ((sizeof(struct ipr_config_table_entry64)
9814 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9815 } else {
9816 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9817 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9818 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9819 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9820 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9821 + ((sizeof(struct ipr_config_table_entry)
9822 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9823 }
6270e593 9824
f688f96d 9825 host->max_channel = IPR_VSET_BUS;
1da177e4
LT		 9826 host->unique_id = host->host_no;
9827 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9828 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9829 pci_set_drvdata(pdev, ioa_cfg);
9830
6270e593
BK		 9831 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9832 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9833 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9834 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9835 if (i == 0)
9836 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9837 else
9838 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9839 }
1da177e4
LT		 9840}
9841
9842/**
1be7bd82 9843 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9844 * @dev_id: PCI device id struct
9845 *
9846 * Return value:
1be7bd82 9847 * ptr to chip information on success / NULL on failure
1da177e4 9848 **/
6f039790 9849static const struct ipr_chip_t *
1be7bd82 9850ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9851{
9852 int i;
9853
1da177e4
LT		 9854 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9855 if (ipr_chip[i].vendor == dev_id->vendor &&
9856 ipr_chip[i].device == dev_id->device)
1be7bd82 9857 return &ipr_chip[i];
1da177e4
LT		 9858 return NULL;
9859}
9860
6270e593
BK		 9861/**
9862 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9863 * during probe time
9864 * @ioa_cfg: ioa config struct
9865 *
9866 * Return value:
9867 * None
9868 **/
9869static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9870{
9871 struct pci_dev *pdev = ioa_cfg->pdev;
9872
9873 if (pci_channel_offline(pdev)) {
9874 wait_event_timeout(ioa_cfg->eeh_wait_q,
9875 !pci_channel_offline(pdev),
9876 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9877 pci_restore_state(pdev);
9878 }
9879}
9880
05a6538a 9881static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9882{
9883 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9884
9885 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9886 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9887 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9888 ioa_cfg->vectors_info[vec_idx].
9889 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9890 }
9891}
9892
a299ee62
CH		 9893static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg,
9894 struct pci_dev *pdev)
05a6538a 9895{
9896 int i, rc;
9897
9898 for (i = 1; i < ioa_cfg->nvectors; i++) {
a299ee62 9899 rc = request_irq(pci_irq_vector(pdev, i),
05a6538a 9900 ipr_isr_mhrrq,
9901 0,
9902 ioa_cfg->vectors_info[i].desc,
9903 &ioa_cfg->hrrq[i]);
9904 if (rc) {
9905 while (--i >= 0)
a299ee62 9906 free_irq(pci_irq_vector(pdev, i),
05a6538a 9907 &ioa_cfg->hrrq[i]);
9908 return rc;
9909 }
9910 }
9911 return 0;
9912}
9913
95fecd90
WB		 9914/**
9915 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9916 * @pdev: PCI device struct
9917 *
9918 * Description: Simply set the msi_received flag to 1 indicating that
9919 * Message Signaled Interrupts are supported.
9920 *
9921 * Return value:
9922 * 0 on success / non-zero on failure
9923 **/
6f039790 9924static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9925{
9926 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9927 unsigned long lock_flags = 0;
9928 irqreturn_t rc = IRQ_HANDLED;
9929
05a6538a 9930 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9932
9933 ioa_cfg->msi_received = 1;
9934 wake_up(&ioa_cfg->msi_wait_q);
9935
9936 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9937 return rc;
9938}
9939
9940/**
9941 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9942 * @pdev: PCI device struct
9943 *
a299ee62 9944 * Description: This routine sets up and initiates a test interrupt to determine
95fecd90
WB		 9945 * if the interrupt is received via the ipr_test_intr() service routine.
9946 * If the tests fails, the driver will fall back to LSI.
9947 *
9948 * Return value:
9949 * 0 on success / non-zero on failure
9950 **/
6f039790 9951static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9952{
9953 int rc;
9954 volatile u32 int_reg;
9955 unsigned long lock_flags = 0;
a299ee62 9956 int irq = pci_irq_vector(pdev, 0);
95fecd90
WB		 9957
9958 ENTER;
9959
9960 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9961 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9962 ioa_cfg->msi_received = 0;
9963 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9964 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9965 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9966 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9967
a299ee62 9968 rc = request_irq(irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90 9969 if (rc) {
a299ee62 9970 dev_err(&pdev->dev, "Can not assign irq %d\n", irq);
95fecd90
WB		 9971 return rc;
9972 } else if (ipr_debug)
a299ee62 9973 dev_info(&pdev->dev, "IRQ assigned: %d\n", irq);
95fecd90 9974
214777ba 9975 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9976 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9977 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9978 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9979 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9980
95fecd90
WB		 9981 if (!ioa_cfg->msi_received) {
9982 /* MSI test failed */
9983 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9984 rc = -EOPNOTSUPP;
9985 } else if (ipr_debug)
9986 dev_info(&pdev->dev, "MSI test succeeded.\n");
9987
9988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9989
a299ee62 9990 free_irq(irq, ioa_cfg);
95fecd90
WB		 9991
9992 LEAVE;
9993
9994 return rc;
9995}
9996
05a6538a 9997 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9998 * @pdev: PCI device struct
9999 * @dev_id: PCI device id struct
10000 *
10001 * Return value:
10002 * 0 on success / non-zero on failure
10003 **/
6f039790
GKH		 10004static int ipr_probe_ioa(struct pci_dev *pdev,
10005 const struct pci_device_id *dev_id)
1da177e4
LT		 10006{
10007 struct ipr_ioa_cfg *ioa_cfg;
10008 struct Scsi_Host *host;
10009 unsigned long ipr_regs_pci;
10010 void __iomem *ipr_regs;
a2a65a3e 10011 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 10012 volatile u32 mask, uproc, interrupts;
feccada9 10013 unsigned long lock_flags, driver_lock_flags;
a299ee62 10014 unsigned int irq_flag;
1da177e4
LT		 10015
10016 ENTER;
10017
1da177e4 10018 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 10019 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
10020
10021 if (!host) {
10022 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
10023 rc = -ENOMEM;
6270e593 10024 goto out;
1da177e4
LT		 10025 }
10026
10027 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
10028 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 10029 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 10030
1be7bd82 10031 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 10032
1be7bd82 10033 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 10034 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
10035 dev_id->vendor, dev_id->device);
10036 goto out_scsi_host_put;
10037 }
10038
a32c055f
WB		 10039 /* set SIS 32 or SIS 64 */
10040 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 10041 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 10042 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 10043 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 10044
5469cb5b
BK		 10045 if (ipr_transop_timeout)
10046 ioa_cfg->transop_timeout = ipr_transop_timeout;
10047 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
10048 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
10049 else
10050 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
10051
44c10138 10052 ioa_cfg->revid = pdev->revision;
463fc696 10053
6270e593
BK		 10054 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
10055
1da177e4
LT		 10056 ipr_regs_pci = pci_resource_start(pdev, 0);
10057
10058 rc = pci_request_regions(pdev, IPR_NAME);
10059 if (rc < 0) {
10060 dev_err(&pdev->dev,
10061 "Couldn't register memory range of registers\n");
10062 goto out_scsi_host_put;
10063 }
10064
6270e593
BK		 10065 rc = pci_enable_device(pdev);
10066
10067 if (rc || pci_channel_offline(pdev)) {
10068 if (pci_channel_offline(pdev)) {
10069 ipr_wait_for_pci_err_recovery(ioa_cfg);
10070 rc = pci_enable_device(pdev);
10071 }
10072
10073 if (rc) {
10074 dev_err(&pdev->dev, "Cannot enable adapter\n");
10075 ipr_wait_for_pci_err_recovery(ioa_cfg);
10076 goto out_release_regions;
10077 }
10078 }
10079
25729a7f 10080 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 10081
10082 if (!ipr_regs) {
10083 dev_err(&pdev->dev,
10084 "Couldn't map memory range of registers\n");
10085 rc = -ENOMEM;
6270e593 10086 goto out_disable;
1da177e4
LT		 10087 }
10088
10089 ioa_cfg->hdw_dma_regs = ipr_regs;
10090 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
10091 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
10092
6270e593 10093 ipr_init_regs(ioa_cfg);
1da177e4 10094
a32c055f 10095 if (ioa_cfg->sis64) {
869404cb 10096 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 10097 if (rc < 0) {
869404cb
AB		 10098 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
10099 rc = dma_set_mask_and_coherent(&pdev->dev,
10100 DMA_BIT_MASK(32));
a32c055f 10101 }
a32c055f 10102 } else
869404cb 10103 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 10104
1da177e4 10105 if (rc < 0) {
869404cb 10106 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 10107 goto cleanup_nomem;
10108 }
10109
10110 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
10111 ioa_cfg->chip_cfg->cache_line_size);
10112
10113 if (rc != PCIBIOS_SUCCESSFUL) {
10114 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 10115 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 10116 rc = -EIO;
10117 goto cleanup_nomem;
10118 }
10119
6270e593
BK		 10120 /* Issue MMIO read to ensure card is not in EEH */
10121 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
10122 ipr_wait_for_pci_err_recovery(ioa_cfg);
10123
05a6538a 10124 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
10125 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
10126 IPR_MAX_MSIX_VECTORS);
10127 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
10128 }
10129
a299ee62
CH		 10130 irq_flag = PCI_IRQ_LEGACY;
10131 if (ioa_cfg->ipr_chip->has_msi)
10132 irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX;
10133 rc = pci_alloc_irq_vectors(pdev, 1, ipr_number_of_msix, irq_flag);
10134 if (rc < 0) {
10135 ipr_wait_for_pci_err_recovery(ioa_cfg);
10136 goto cleanup_nomem;
05a6538a 10137 }
a299ee62
CH		 10138 ioa_cfg->nvectors = rc;
10139
10140 if (!pdev->msi_enabled && !pdev->msix_enabled)
10141 ioa_cfg->clear_isr = 1;
05a6538a 10142
6270e593
BK		 10143 pci_set_master(pdev);
10144
10145 if (pci_channel_offline(pdev)) {
10146 ipr_wait_for_pci_err_recovery(ioa_cfg);
10147 pci_set_master(pdev);
10148 if (pci_channel_offline(pdev)) {
10149 rc = -EIO;
10150 goto out_msi_disable;
10151 }
10152 }
10153
a299ee62 10154 if (pdev->msi_enabled || pdev->msix_enabled) {
95fecd90 10155 rc = ipr_test_msi(ioa_cfg, pdev);
a299ee62
CH		 10156 switch (rc) {
10157 case 0:
10158 dev_info(&pdev->dev,
10159 "Request for %d MSI%ss succeeded.", ioa_cfg->nvectors,
10160 pdev->msix_enabled ? "-X" : "");
10161 break;
10162 case -EOPNOTSUPP:
6270e593 10163 ipr_wait_for_pci_err_recovery(ioa_cfg);
a299ee62 10164 pci_free_irq_vectors(pdev);
05a6538a 10165
05a6538a 10166 ioa_cfg->nvectors = 1;
9dadfb97 10167 ioa_cfg->clear_isr = 1;
a299ee62
CH		 10168 break;
10169 default:
95fecd90 10170 goto out_msi_disable;
05a6538a 10171 }
10172 }
10173
10174 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
10175 (unsigned int)num_online_cpus(),
10176 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 10177
1da177e4 10178 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 10179 goto out_msi_disable;
1da177e4
LT		 10180
10181 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 10182 goto out_msi_disable;
1da177e4
LT		 10183
10184 rc = ipr_alloc_mem(ioa_cfg);
10185 if (rc < 0) {
10186 dev_err(&pdev->dev,
10187 "Couldn't allocate enough memory for device driver!\n");
f170c684 10188 goto out_msi_disable;
1da177e4
LT		 10189 }
10190
6270e593
BK		 10191 /* Save away PCI config space for use following IOA reset */
10192 rc = pci_save_state(pdev);
10193
10194 if (rc != PCIBIOS_SUCCESSFUL) {
10195 dev_err(&pdev->dev, "Failed to save PCI config space\n");
10196 rc = -EIO;
10197 goto cleanup_nolog;
10198 }
10199
ce155cce
BK		 10200 /*
10201 * If HRRQ updated interrupt is not masked, or reset alert is set,
10202 * the card is in an unknown state and needs a hard reset
10203 */
214777ba
WB		 10204 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
10205 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
10206 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 10207 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
10208 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 10209 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 10210 ioa_cfg->needs_hard_reset = 1;
10211 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
10212 ioa_cfg->ioa_unit_checked = 1;
ce155cce 10213
56d6aa33 10214 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10215 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 10216 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 10217
a299ee62 10218 if (pdev->msi_enabled || pdev->msix_enabled) {
05a6538a 10219 name_msi_vectors(ioa_cfg);
a299ee62 10220 rc = request_irq(pci_irq_vector(pdev, 0), ipr_isr, 0,
05a6538a 10221 ioa_cfg->vectors_info[0].desc,
10222 &ioa_cfg->hrrq[0]);
10223 if (!rc)
a299ee62 10224 rc = ipr_request_other_msi_irqs(ioa_cfg, pdev);
05a6538a 10225 } else {
10226 rc = request_irq(pdev->irq, ipr_isr,
10227 IRQF_SHARED,
10228 IPR_NAME, &ioa_cfg->hrrq[0]);
10229 }
1da177e4
LT		 10230 if (rc) {
10231 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
10232 pdev->irq, rc);
10233 goto cleanup_nolog;
10234 }
10235
463fc696
BK		 10236 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
10237 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
10238 ioa_cfg->needs_warm_reset = 1;
10239 ioa_cfg->reset = ipr_reset_slot_reset;
2796ca5e
BK		 10240
10241 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d",
10242 WQ_MEM_RECLAIM, host->host_no);
10243
10244 if (!ioa_cfg->reset_work_q) {
10245 dev_err(&pdev->dev, "Couldn't register reset workqueue\n");
c8e18acc 10246 rc = -ENOMEM;
2796ca5e
BK		 10247 goto out_free_irq;
10248 }
463fc696
BK		 10249 } else
10250 ioa_cfg->reset = ipr_reset_start_bist;
10251
feccada9 10252 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10253 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 10254 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10255
10256 LEAVE;
10257out:
10258 return rc;
10259
2796ca5e
BK		 10260out_free_irq:
10261 ipr_free_irqs(ioa_cfg);
1da177e4
LT		 10262cleanup_nolog:
10263 ipr_free_mem(ioa_cfg);
95fecd90 10264out_msi_disable:
6270e593 10265 ipr_wait_for_pci_err_recovery(ioa_cfg);
a299ee62 10266 pci_free_irq_vectors(pdev);
f170c684
JL		 10267cleanup_nomem:
10268 iounmap(ipr_regs);
6270e593
BK		 10269out_disable:
10270 pci_disable_device(pdev);
1da177e4
LT		 10271out_release_regions:
10272 pci_release_regions(pdev);
10273out_scsi_host_put:
10274 scsi_host_put(host);
1da177e4
LT		 10275 goto out;
10276}
10277
1da177e4
LT		 10278/**
10279 * ipr_initiate_ioa_bringdown - Bring down an adapter
10280 * @ioa_cfg: ioa config struct
10281 * @shutdown_type: shutdown type
10282 *
10283 * Description: This function will initiate bringing down the adapter.
10284 * This consists of issuing an IOA shutdown to the adapter
10285 * to flush the cache, and running BIST.
10286 * If the caller needs to wait on the completion of the reset,
10287 * the caller must sleep on the reset_wait_q.
10288 *
10289 * Return value:
10290 * none
10291 **/
10292static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
10293 enum ipr_shutdown_type shutdown_type)
10294{
10295 ENTER;
10296 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
10297 ioa_cfg->sdt_state = ABORT_DUMP;
10298 ioa_cfg->reset_retries = 0;
10299 ioa_cfg->in_ioa_bringdown = 1;
10300 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
10301 LEAVE;
10302}
10303
10304/**
10305 * __ipr_remove - Remove a single adapter
10306 * @pdev: pci device struct
10307 *
10308 * Adapter hot plug remove entry point.
10309 *
10310 * Return value:
10311 * none
10312 **/
10313static void __ipr_remove(struct pci_dev *pdev)
10314{
10315 unsigned long host_lock_flags = 0;
10316 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 10317 int i;
feccada9 10318 unsigned long driver_lock_flags;
1da177e4
LT		 10319 ENTER;
10320
10321 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 10322 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10323 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10324 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10325 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10326 }
10327
bfae7820
BK		 10328 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
10329 spin_lock(&ioa_cfg->hrrq[i]._lock);
10330 ioa_cfg->hrrq[i].removing_ioa = 1;
10331 spin_unlock(&ioa_cfg->hrrq[i]._lock);
10332 }
10333 wmb();
1da177e4
LT		 10334 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10335
10336 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10337 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 10338 flush_work(&ioa_cfg->work_q);
2796ca5e
BK		 10339 if (ioa_cfg->reset_work_q)
10340 flush_workqueue(ioa_cfg->reset_work_q);
9077a944 10341 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 10342 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
10343
feccada9 10344 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 10345 list_del(&ioa_cfg->queue);
feccada9 10346 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 10347
10348 if (ioa_cfg->sdt_state == ABORT_DUMP)
10349 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
10350 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
10351
10352 ipr_free_all_resources(ioa_cfg);
10353
10354 LEAVE;
10355}
10356
10357/**
10358 * ipr_remove - IOA hot plug remove entry point
10359 * @pdev: pci device struct
10360 *
10361 * Adapter hot plug remove entry point.
10362 *
10363 * Return value:
10364 * none
10365 **/
6f039790 10366static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 10367{
10368 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
10369
10370 ENTER;
10371
ee959b00 10372 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10373 &ipr_trace_attr);
ee959b00 10374 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 10375 &ipr_dump_attr);
afc3f83c
BK		 10376 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10377 &ipr_ioa_async_err_log);
1da177e4
LT		 10378 scsi_remove_host(ioa_cfg->host);
10379
10380 __ipr_remove(pdev);
10381
10382 LEAVE;
10383}
10384
10385/**
10386 * ipr_probe - Adapter hot plug add entry point
10387 *
10388 * Return value:
10389 * 0 on success / non-zero on failure
10390 **/
6f039790 10391static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 10392{
10393 struct ipr_ioa_cfg *ioa_cfg;
b195d5e2 10394 unsigned long flags;
b53d124a 10395 int rc, i;
1da177e4
LT		 10396
10397 rc = ipr_probe_ioa(pdev, dev_id);
10398
10399 if (rc)
10400 return rc;
10401
10402 ioa_cfg = pci_get_drvdata(pdev);
10403 rc = ipr_probe_ioa_part2(ioa_cfg);
10404
10405 if (rc) {
10406 __ipr_remove(pdev);
10407 return rc;
10408 }
10409
10410 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
10411
10412 if (rc) {
10413 __ipr_remove(pdev);
10414 return rc;
10415 }
10416
ee959b00 10417 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10418 &ipr_trace_attr);
10419
10420 if (rc) {
10421 scsi_remove_host(ioa_cfg->host);
10422 __ipr_remove(pdev);
10423 return rc;
10424 }
10425
afc3f83c
BK		 10426 rc = sysfs_create_bin_file(&ioa_cfg->host->shost_dev.kobj,
10427 &ipr_ioa_async_err_log);
10428
10429 if (rc) {
10430 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
10431 &ipr_dump_attr);
10432 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
10433 &ipr_trace_attr);
10434 scsi_remove_host(ioa_cfg->host);
10435 __ipr_remove(pdev);
10436 return rc;
10437 }
10438
ee959b00 10439 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10440 &ipr_dump_attr);
10441
10442 if (rc) {
afc3f83c
BK		 10443 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj,
10444 &ipr_ioa_async_err_log);
ee959b00 10445 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 10446 &ipr_trace_attr);
10447 scsi_remove_host(ioa_cfg->host);
10448 __ipr_remove(pdev);
10449 return rc;
10450 }
a3d1ddd9
BK		 10451 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
10452 ioa_cfg->scan_enabled = 1;
10453 schedule_work(&ioa_cfg->work_q);
10454 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
1da177e4 10455
b53d124a 10456 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
10457
89f8b33c 10458 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10459 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
511cbce2 10460 irq_poll_init(&ioa_cfg->hrrq[i].iopoll,
b53d124a 10461 ioa_cfg->iopoll_weight, ipr_iopoll);
b53d124a 10462 }
10463 }
10464
a3d1ddd9
BK		 10465 scsi_scan_host(ioa_cfg->host);
10466
1da177e4
LT		 10467 return 0;
10468}
10469
10470/**
10471 * ipr_shutdown - Shutdown handler.
d18c3db5 10472 * @pdev: pci device struct
1da177e4
LT		 10473 *
10474 * This function is invoked upon system shutdown/reboot. It will issue
10475 * an adapter shutdown to the adapter to flush the write cache.
10476 *
10477 * Return value:
10478 * none
10479 **/
d18c3db5 10480static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 10481{
d18c3db5 10482 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 10483 unsigned long lock_flags = 0;
4fdd7c7a 10484 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL;
b53d124a 10485 int i;
1da177e4
LT		 10486
10487 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 10488 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10489 ioa_cfg->iopoll_weight = 0;
10490 for (i = 1; i < ioa_cfg->hrrq_num; i++)
511cbce2 10491 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll);
b53d124a 10492 }
10493
203fa3fe 10494 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10495 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10496 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10497 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10498 }
10499
4fdd7c7a
BK		 10500 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64)
10501 shutdown_type = IPR_SHUTDOWN_QUIESCE;
10502
10503 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type);
1da177e4
LT		 10504 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10505 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4fdd7c7a 10506 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) {
2796ca5e 10507 ipr_free_irqs(ioa_cfg);
4fdd7c7a
BK		 10508 pci_disable_device(ioa_cfg->pdev);
10509 }
1da177e4
LT		 10510}
10511
6f039790 10512static struct pci_device_id ipr_pci_table[] = {
1da177e4 10513 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10514 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10515 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10516 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10517 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10518 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10519 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10520 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10521 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10522 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10523 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10524 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10525 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10526 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10527 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10528 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10529 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10530 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10531 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10532 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10533 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10534 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10535 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10536 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10537 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10538 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10539 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10540 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10541 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10542 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10543 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10544 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10545 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10546 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10547 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10548 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10549 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10550 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10551 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10552 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10553 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10554 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10555 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10556 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10557 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10558 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10559 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10560 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10561 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10562 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10563 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10564 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10565 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10566 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10567 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10568 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10569 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10570 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10571 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10572 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10573 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10574 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10575 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10576 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10577 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10578 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10579 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10580 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10581 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10582 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10583 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10584 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10585 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10586 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10587 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10588 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10589 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10590 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10591 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10592 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10593 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10594 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10595 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10596 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10597 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10598 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10599 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10600 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10601 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10602 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10603 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10604 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10605 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10606 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10607 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10608 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10609 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10610 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10611 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10612 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10613 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10614 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10615 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10616 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10617 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
00da9ffa
WX		 10618 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10619 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 },
10620 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE,
10621 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 },
1da177e4
LT		 10622 { }
10623};
10624MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10625
a55b2d21 10626static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10627 .error_detected = ipr_pci_error_detected,
6270e593 10628 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10629 .slot_reset = ipr_pci_slot_reset,
10630};
10631
1da177e4
LT		 10632static struct pci_driver ipr_driver = {
10633 .name = IPR_NAME,
10634 .id_table = ipr_pci_table,
10635 .probe = ipr_probe,
6f039790 10636 .remove = ipr_remove,
d18c3db5 10637 .shutdown = ipr_shutdown,
f8a88b19 10638 .err_handler = &ipr_err_handler,
1da177e4
LT		 10639};
10640
f72919ec
WB		 10641/**
10642 * ipr_halt_done - Shutdown prepare completion
10643 *
10644 * Return value:
10645 * none
10646 **/
10647static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10648{
05a6538a 10649 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10650}
10651
10652/**
10653 * ipr_halt - Issue shutdown prepare to all adapters
10654 *
10655 * Return value:
10656 * NOTIFY_OK on success / NOTIFY_DONE on failure
10657 **/
10658static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10659{
10660 struct ipr_cmnd *ipr_cmd;
10661 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10662 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10663
10664 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10665 return NOTIFY_DONE;
10666
feccada9 10667 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10668
10669 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10670 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4fdd7c7a
BK		 10671 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
10672 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) {
f72919ec
WB		 10673 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10674 continue;
10675 }
10676
10677 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10678 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10679 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10680 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10681 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10682
10683 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10685 }
feccada9 10686 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10687
10688 return NOTIFY_OK;
10689}
10690
10691static struct notifier_block ipr_notifier = {
10692 ipr_halt, NULL, 0
10693};
10694
1da177e4
LT		 10695/**
10696 * ipr_init - Module entry point
10697 *
10698 * Return value:
10699 * 0 on success / negative value on failure
10700 **/
10701static int __init ipr_init(void)
10702{
10703 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10704 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10705
f72919ec 10706 register_reboot_notifier(&ipr_notifier);
dcbccbde 10707 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10708}
10709
10710/**
10711 * ipr_exit - Module unload
10712 *
10713 * Module unload entry point.
10714 *
10715 * Return value:
10716 * none
10717 **/
10718static void __exit ipr_exit(void)
10719{
f72919ec 10720 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10721 pci_unregister_driver(&ipr_driver);
10722}
10723
10724module_init(ipr_init);
10725module_exit(ipr_exit);
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