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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;
05a6538a 101static unsigned int ipr_number_of_msix = 2;
1da177e4
LT		 102static DEFINE_SPINLOCK(ipr_driver_lock);
103
104/* This table describes the differences between DMA controller chips */
105static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
60e7486b 106 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
1da177e4 107 .mailbox = 0x0042C,
89aad428 108 .max_cmds = 100,
1da177e4 109 .cache_line_size = 0x20,
7dd21308 110 .clear_isr = 1,
b53d124a 111 .iopoll_weight = 0,
1da177e4
LT		 112 {
113 .set_interrupt_mask_reg = 0x0022C,
114 .clr_interrupt_mask_reg = 0x00230,
214777ba 115 .clr_interrupt_mask_reg32 = 0x00230,
1da177e4 116 .sense_interrupt_mask_reg = 0x0022C,
214777ba 117 .sense_interrupt_mask_reg32 = 0x0022C,
1da177e4 118 .clr_interrupt_reg = 0x00228,
214777ba 119 .clr_interrupt_reg32 = 0x00228,
1da177e4 120 .sense_interrupt_reg = 0x00224,
214777ba 121 .sense_interrupt_reg32 = 0x00224,
1da177e4
LT		 122 .ioarrin_reg = 0x00404,
123 .sense_uproc_interrupt_reg = 0x00214,
214777ba 124 .sense_uproc_interrupt_reg32 = 0x00214,
1da177e4 125 .set_uproc_interrupt_reg = 0x00214,
214777ba
WB		 126 .set_uproc_interrupt_reg32 = 0x00214,
127 .clr_uproc_interrupt_reg = 0x00218,
128 .clr_uproc_interrupt_reg32 = 0x00218
1da177e4
LT		 129 }
130 },
131 { /* Snipe and Scamp */
132 .mailbox = 0x0052C,
89aad428 133 .max_cmds = 100,
1da177e4 134 .cache_line_size = 0x20,
7dd21308 135 .clear_isr = 1,
b53d124a 136 .iopoll_weight = 0,
1da177e4
LT		 137 {
138 .set_interrupt_mask_reg = 0x00288,
139 .clr_interrupt_mask_reg = 0x0028C,
214777ba 140 .clr_interrupt_mask_reg32 = 0x0028C,
1da177e4 141 .sense_interrupt_mask_reg = 0x00288,
214777ba 142 .sense_interrupt_mask_reg32 = 0x00288,
1da177e4 143 .clr_interrupt_reg = 0x00284,
214777ba 144 .clr_interrupt_reg32 = 0x00284,
1da177e4 145 .sense_interrupt_reg = 0x00280,
214777ba 146 .sense_interrupt_reg32 = 0x00280,
1da177e4
LT		 147 .ioarrin_reg = 0x00504,
148 .sense_uproc_interrupt_reg = 0x00290,
214777ba 149 .sense_uproc_interrupt_reg32 = 0x00290,
1da177e4 150 .set_uproc_interrupt_reg = 0x00290,
214777ba
WB		 151 .set_uproc_interrupt_reg32 = 0x00290,
152 .clr_uproc_interrupt_reg = 0x00294,
153 .clr_uproc_interrupt_reg32 = 0x00294
1da177e4
LT		 154 }
155 },
a74c1639 156 { /* CRoC */
110def85 157 .mailbox = 0x00044,
89aad428 158 .max_cmds = 1000,
a74c1639 159 .cache_line_size = 0x20,
7dd21308 160 .clear_isr = 0,
b53d124a 161 .iopoll_weight = 64,
a74c1639
WB		 162 {
163 .set_interrupt_mask_reg = 0x00010,
164 .clr_interrupt_mask_reg = 0x00018,
214777ba 165 .clr_interrupt_mask_reg32 = 0x0001C,
a74c1639 166 .sense_interrupt_mask_reg = 0x00010,
214777ba 167 .sense_interrupt_mask_reg32 = 0x00014,
a74c1639 168 .clr_interrupt_reg = 0x00008,
214777ba 169 .clr_interrupt_reg32 = 0x0000C,
a74c1639 170 .sense_interrupt_reg = 0x00000,
214777ba 171 .sense_interrupt_reg32 = 0x00004,
a74c1639
WB		 172 .ioarrin_reg = 0x00070,
173 .sense_uproc_interrupt_reg = 0x00020,
214777ba 174 .sense_uproc_interrupt_reg32 = 0x00024,
a74c1639 175 .set_uproc_interrupt_reg = 0x00020,
214777ba 176 .set_uproc_interrupt_reg32 = 0x00024,
dcbad00e 177 .clr_uproc_interrupt_reg = 0x00028,
214777ba
WB		 178 .clr_uproc_interrupt_reg32 = 0x0002C,
179 .init_feedback_reg = 0x0005C,
dcbad00e 180 .dump_addr_reg = 0x00064,
8701f185
WB		 181 .dump_data_reg = 0x00068,
182 .endian_swap_reg = 0x00084
a74c1639
WB		 183 }
184 },
1da177e4
LT		 185};
186
187static const struct ipr_chip_t ipr_chip[] = {
cb237ef7
WB		 188 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
189 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
190 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
191 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
194 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
195 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
cd9b3d04 196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
1da177e4
LT		 197};
198
203fa3fe 199static int ipr_max_bus_speeds[] = {
1da177e4
LT		 200 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
201};
202
203MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
204MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
205module_param_named(max_speed, ipr_max_speed, uint, 0);
206MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
207module_param_named(log_level, ipr_log_level, uint, 0);
208MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
209module_param_named(testmode, ipr_testmode, int, 0);
210MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
2cf22be0 211module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
1da177e4
LT		 212MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
213module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
214MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
2cf22be0 215module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
d3c74871 216MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
ac09c349
BK		 217module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
218MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
3e7ebdfa
WB		 219module_param_named(max_devs, ipr_max_devs, int, 0);
220MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
221 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
05a6538a 222module_param_named(number_of_msix, ipr_number_of_msix, int, 0);
6634ff7c 223MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:2)");
1da177e4
LT		 224MODULE_LICENSE("GPL");
225MODULE_VERSION(IPR_DRIVER_VERSION);
226
1da177e4
LT		 227/* A constant array of IOASCs/URCs/Error Messages */
228static const
229struct ipr_error_table_t ipr_error_table[] = {
933916f3 230 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 231 "8155: An unknown error was received"},
232 {0x00330000, 0, 0,
233 "Soft underlength error"},
234 {0x005A0000, 0, 0,
235 "Command to be cancelled not found"},
236 {0x00808000, 0, 0,
237 "Qualified success"},
933916f3 238 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 239 "FFFE: Soft device bus error recovered by the IOA"},
933916f3 240 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 241 "4101: Soft device bus fabric error"},
5aa3a333
WB		 242 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFFC: Logical block guard error recovered by the device"},
244 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
245 "FFFC: Logical block reference tag error recovered by the device"},
246 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
247 "4171: Recovered scatter list tag / sequence number error"},
248 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
249 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
250 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
251 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
252 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FFFD: Recovered logical block reference tag error detected by the IOA"},
254 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
255 "FFFD: Logical block guard error recovered by the IOA"},
933916f3 256 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 257 "FFF9: Device sector reassign successful"},
933916f3 258 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 259 "FFF7: Media error recovered by device rewrite procedures"},
933916f3 260 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 261 "7001: IOA sector reassignment successful"},
933916f3 262 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 263 "FFF9: Soft media error. Sector reassignment recommended"},
933916f3 264 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 265 "FFF7: Media error recovered by IOA rewrite procedures"},
933916f3 266 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 267 "FF3D: Soft PCI bus error recovered by the IOA"},
933916f3 268 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 269 "FFF6: Device hardware error recovered by the IOA"},
933916f3 270 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 271 "FFF6: Device hardware error recovered by the device"},
933916f3 272 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 273 "FF3D: Soft IOA error recovered by the IOA"},
933916f3 274 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 275 "FFFA: Undefined device response recovered by the IOA"},
933916f3 276 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 277 "FFF6: Device bus error, message or command phase"},
933916f3 278 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
35a39691 279 "FFFE: Task Management Function failed"},
933916f3 280 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 281 "FFF6: Failure prediction threshold exceeded"},
933916f3 282 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 283 "8009: Impending cache battery pack failure"},
ed7bd661 284 {0x02040100, 0, 0,
285 "Logical Unit in process of becoming ready"},
286 {0x02040200, 0, 0,
287 "Initializing command required"},
1da177e4
LT		 288 {0x02040400, 0, 0,
289 "34FF: Disk device format in progress"},
ed7bd661 290 {0x02040C00, 0, 0,
291 "Logical unit not accessible, target port in unavailable state"},
65f56475
BK		 292 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
293 "9070: IOA requested reset"},
1da177e4
LT		 294 {0x023F0000, 0, 0,
295 "Synchronization required"},
ed7bd661 296 {0x02408500, 0, 0,
297 "IOA microcode download required"},
298 {0x02408600, 0, 0,
299 "Device bus connection is prohibited by host"},
1da177e4
LT		 300 {0x024E0000, 0, 0,
301 "No ready, IOA shutdown"},
302 {0x025A0000, 0, 0,
303 "Not ready, IOA has been shutdown"},
933916f3 304 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 305 "3020: Storage subsystem configuration error"},
306 {0x03110B00, 0, 0,
307 "FFF5: Medium error, data unreadable, recommend reassign"},
308 {0x03110C00, 0, 0,
309 "7000: Medium error, data unreadable, do not reassign"},
933916f3 310 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 311 "FFF3: Disk media format bad"},
933916f3 312 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 313 "3002: Addressed device failed to respond to selection"},
933916f3 314 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 315 "3100: Device bus error"},
933916f3 316 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 317 "3109: IOA timed out a device command"},
318 {0x04088000, 0, 0,
319 "3120: SCSI bus is not operational"},
933916f3 320 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 321 "4100: Hard device bus fabric error"},
5aa3a333
WB		 322 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
323 "310C: Logical block guard error detected by the device"},
324 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
325 "310C: Logical block reference tag error detected by the device"},
326 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
327 "4170: Scatter list tag / sequence number error"},
328 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
329 "8150: Logical block CRC error on IOA to Host transfer"},
330 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
331 "4170: Logical block sequence number error on IOA to Host transfer"},
332 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
333 "310D: Logical block reference tag error detected by the IOA"},
334 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
335 "310D: Logical block guard error detected by the IOA"},
933916f3 336 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 337 "9000: IOA reserved area data check"},
933916f3 338 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 339 "9001: IOA reserved area invalid data pattern"},
933916f3 340 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 341 "9002: IOA reserved area LRC error"},
5aa3a333
WB		 342 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
343 "Hardware Error, IOA metadata access error"},
933916f3 344 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 345 "102E: Out of alternate sectors for disk storage"},
933916f3 346 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 347 "FFF4: Data transfer underlength error"},
933916f3 348 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 349 "FFF4: Data transfer overlength error"},
933916f3 350 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 351 "3400: Logical unit failure"},
933916f3 352 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 353 "FFF4: Device microcode is corrupt"},
933916f3 354 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 355 "8150: PCI bus error"},
356 {0x04430000, 1, 0,
357 "Unsupported device bus message received"},
933916f3 358 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 359 "FFF4: Disk device problem"},
933916f3 360 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 361 "8150: Permanent IOA failure"},
933916f3 362 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 363 "3010: Disk device returned wrong response to IOA"},
933916f3 364 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 365 "8151: IOA microcode error"},
366 {0x04448500, 0, 0,
367 "Device bus status error"},
933916f3 368 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 369 "8157: IOA error requiring IOA reset to recover"},
35a39691
BK		 370 {0x04448700, 0, 0,
371 "ATA device status error"},
1da177e4
LT		 372 {0x04490000, 0, 0,
373 "Message reject received from the device"},
933916f3 374 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 375 "8008: A permanent cache battery pack failure occurred"},
933916f3 376 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 377 "9090: Disk unit has been modified after the last known status"},
933916f3 378 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 379 "9081: IOA detected device error"},
933916f3 380 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 381 "9082: IOA detected device error"},
933916f3 382 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
1da177e4 383 "3110: Device bus error, message or command phase"},
933916f3 384 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
35a39691 385 "3110: SAS Command / Task Management Function failed"},
933916f3 386 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 387 "9091: Incorrect hardware configuration change has been detected"},
933916f3 388 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 389 "9073: Invalid multi-adapter configuration"},
933916f3 390 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 391 "4010: Incorrect connection between cascaded expanders"},
933916f3 392 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 393 "4020: Connections exceed IOA design limits"},
933916f3 394 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 395 "4030: Incorrect multipath connection"},
933916f3 396 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 397 "4110: Unsupported enclosure function"},
ed7bd661 398 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL,
399 "4120: SAS cable VPD cannot be read"},
933916f3 400 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 401 "FFF4: Command to logical unit failed"},
402 {0x05240000, 1, 0,
403 "Illegal request, invalid request type or request packet"},
404 {0x05250000, 0, 0,
405 "Illegal request, invalid resource handle"},
b0df54bb
BK		 406 {0x05258000, 0, 0,
407 "Illegal request, commands not allowed to this device"},
408 {0x05258100, 0, 0,
409 "Illegal request, command not allowed to a secondary adapter"},
5aa3a333
WB		 410 {0x05258200, 0, 0,
411 "Illegal request, command not allowed to a non-optimized resource"},
1da177e4
LT		 412 {0x05260000, 0, 0,
413 "Illegal request, invalid field in parameter list"},
414 {0x05260100, 0, 0,
415 "Illegal request, parameter not supported"},
416 {0x05260200, 0, 0,
417 "Illegal request, parameter value invalid"},
418 {0x052C0000, 0, 0,
419 "Illegal request, command sequence error"},
b0df54bb
BK		 420 {0x052C8000, 1, 0,
421 "Illegal request, dual adapter support not enabled"},
ed7bd661 422 {0x052C8100, 1, 0,
423 "Illegal request, another cable connector was physically disabled"},
424 {0x054E8000, 1, 0,
425 "Illegal request, inconsistent group id/group count"},
933916f3 426 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 427 "9031: Array protection temporarily suspended, protection resuming"},
933916f3 428 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 429 "9040: Array protection temporarily suspended, protection resuming"},
ed7bd661 430 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL,
431 "4080: IOA exceeded maximum operating temperature"},
432 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL,
433 "4085: Service required"},
933916f3 434 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 435 "3140: Device bus not ready to ready transition"},
933916f3 436 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4
LT		 437 "FFFB: SCSI bus was reset"},
438 {0x06290500, 0, 0,
439 "FFFE: SCSI bus transition to single ended"},
440 {0x06290600, 0, 0,
441 "FFFE: SCSI bus transition to LVD"},
933916f3 442 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 443 "FFFB: SCSI bus was reset by another initiator"},
933916f3 444 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 445 "3029: A device replacement has occurred"},
ed7bd661 446 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL,
447 "4102: Device bus fabric performance degradation"},
933916f3 448 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 449 "9051: IOA cache data exists for a missing or failed device"},
933916f3 450 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 451 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
933916f3 452 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 453 "9025: Disk unit is not supported at its physical location"},
933916f3 454 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 455 "3020: IOA detected a SCSI bus configuration error"},
933916f3 456 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 457 "3150: SCSI bus configuration error"},
933916f3 458 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 459 "9074: Asymmetric advanced function disk configuration"},
933916f3 460 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 461 "4040: Incomplete multipath connection between IOA and enclosure"},
933916f3 462 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 463 "4041: Incomplete multipath connection between enclosure and device"},
933916f3 464 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 465 "9075: Incomplete multipath connection between IOA and remote IOA"},
933916f3 466 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 467 "9076: Configuration error, missing remote IOA"},
933916f3 468 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 469 "4050: Enclosure does not support a required multipath function"},
ed7bd661 470 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL,
471 "4121: Configuration error, required cable is missing"},
472 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL,
473 "4122: Cable is not plugged into the correct location on remote IOA"},
474 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL,
475 "4123: Configuration error, invalid cable vital product data"},
476 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL,
477 "4124: Configuration error, both cable ends are plugged into the same IOA"},
b75424fc
WB		 478 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
479 "4070: Logically bad block written on device"},
933916f3 480 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 481 "9041: Array protection temporarily suspended"},
933916f3 482 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 483 "9042: Corrupt array parity detected on specified device"},
933916f3 484 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 485 "9030: Array no longer protected due to missing or failed disk unit"},
933916f3 486 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 487 "9071: Link operational transition"},
933916f3 488 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
b0df54bb 489 "9072: Link not operational transition"},
933916f3 490 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 491 "9032: Array exposed but still protected"},
e435340c
BK		 492 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
493 "70DD: Device forced failed by disrupt device command"},
933916f3 494 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 495 "4061: Multipath redundancy level got better"},
933916f3 496 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
896bbd21 497 "4060: Multipath redundancy level got worse"},
1da177e4
LT		 498 {0x07270000, 0, 0,
499 "Failure due to other device"},
933916f3 500 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 501 "9008: IOA does not support functions expected by devices"},
933916f3 502 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 503 "9010: Cache data associated with attached devices cannot be found"},
933916f3 504 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 505 "9011: Cache data belongs to devices other than those attached"},
933916f3 506 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 507 "9020: Array missing 2 or more devices with only 1 device present"},
933916f3 508 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 509 "9021: Array missing 2 or more devices with 2 or more devices present"},
933916f3 510 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 511 "9022: Exposed array is missing a required device"},
933916f3 512 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 513 "9023: Array member(s) not at required physical locations"},
933916f3 514 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 515 "9024: Array not functional due to present hardware configuration"},
933916f3 516 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 517 "9026: Array not functional due to present hardware configuration"},
933916f3 518 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 519 "9027: Array is missing a device and parity is out of sync"},
933916f3 520 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 521 "9028: Maximum number of arrays already exist"},
933916f3 522 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 523 "9050: Required cache data cannot be located for a disk unit"},
933916f3 524 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 525 "9052: Cache data exists for a device that has been modified"},
933916f3 526 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 527 "9054: IOA resources not available due to previous problems"},
933916f3 528 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 529 "9092: Disk unit requires initialization before use"},
933916f3 530 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 531 "9029: Incorrect hardware configuration change has been detected"},
933916f3 532 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 533 "9060: One or more disk pairs are missing from an array"},
933916f3 534 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 535 "9061: One or more disks are missing from an array"},
933916f3 536 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 537 "9062: One or more disks are missing from an array"},
933916f3 538 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
1da177e4 539 "9063: Maximum number of functional arrays has been exceeded"},
ed7bd661 540 {0x07279A00, 0, 0,
541 "Data protect, other volume set problem"},
1da177e4
LT		 542 {0x0B260000, 0, 0,
543 "Aborted command, invalid descriptor"},
ed7bd661 544 {0x0B3F9000, 0, 0,
545 "Target operating conditions have changed, dual adapter takeover"},
546 {0x0B530200, 0, 0,
547 "Aborted command, medium removal prevented"},
1da177e4 548 {0x0B5A0000, 0, 0,
ed7bd661 549 "Command terminated by host"},
550 {0x0B5B8000, 0, 0,
551 "Aborted command, command terminated by host"}
1da177e4
LT		 552};
553
554static const struct ipr_ses_table_entry ipr_ses_table[] = {
555 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
556 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
557 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
558 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
559 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
560 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
561 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
562 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
563 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
564 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
565 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
566 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
567 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
568};
569
570/*
571 * Function Prototypes
572 */
573static int ipr_reset_alert(struct ipr_cmnd *);
574static void ipr_process_ccn(struct ipr_cmnd *);
575static void ipr_process_error(struct ipr_cmnd *);
576static void ipr_reset_ioa_job(struct ipr_cmnd *);
577static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
578 enum ipr_shutdown_type);
579
580#ifdef CONFIG_SCSI_IPR_TRACE
581/**
582 * ipr_trc_hook - Add a trace entry to the driver trace
583 * @ipr_cmd: ipr command struct
584 * @type: trace type
585 * @add_data: additional data
586 *
587 * Return value:
588 * none
589 **/
590static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
591 u8 type, u32 add_data)
592{
593 struct ipr_trace_entry *trace_entry;
594 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
595
56d6aa33 596 trace_entry = &ioa_cfg->trace[atomic_add_return
597 (1, &ioa_cfg->trace_index)%IPR_NUM_TRACE_ENTRIES];
1da177e4
LT		 598 trace_entry->time = jiffies;
599 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
600 trace_entry->type = type;
a32c055f
WB		 601 if (ipr_cmd->ioa_cfg->sis64)
602 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
603 else
604 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
35a39691 605 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
1da177e4
LT		 606 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
607 trace_entry->u.add_data = add_data;
56d6aa33 608 wmb();
1da177e4
LT		 609}
610#else
203fa3fe 611#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0)
1da177e4
LT		 612#endif
613
172cd6e1
BK		 614/**
615 * ipr_lock_and_done - Acquire lock and complete command
616 * @ipr_cmd: ipr command struct
617 *
618 * Return value:
619 * none
620 **/
621static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd)
622{
623 unsigned long lock_flags;
624 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
625
626 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
627 ipr_cmd->done(ipr_cmd);
628 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
629}
630
1da177e4
LT		 631/**
632 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
633 * @ipr_cmd: ipr command struct
634 *
635 * Return value:
636 * none
637 **/
638static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
639{
640 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00
WB		 641 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
642 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
a32c055f 643 dma_addr_t dma_addr = ipr_cmd->dma_addr;
05a6538a 644 int hrrq_id;
1da177e4 645
05a6538a 646 hrrq_id = ioarcb->cmd_pkt.hrrq_id;
1da177e4 647 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
05a6538a 648 ioarcb->cmd_pkt.hrrq_id = hrrq_id;
a32c055f 649 ioarcb->data_transfer_length = 0;
1da177e4 650 ioarcb->read_data_transfer_length = 0;
a32c055f 651 ioarcb->ioadl_len = 0;
1da177e4 652 ioarcb->read_ioadl_len = 0;
a32c055f 653
96d21f00 654 if (ipr_cmd->ioa_cfg->sis64) {
a32c055f
WB		 655 ioarcb->u.sis64_addr_data.data_ioadl_addr =
656 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
96d21f00
WB		 657 ioasa64->u.gata.status = 0;
658 } else {
a32c055f
WB		 659 ioarcb->write_ioadl_addr =
660 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
661 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
96d21f00 662 ioasa->u.gata.status = 0;
a32c055f
WB		 663 }
664
96d21f00
WB		 665 ioasa->hdr.ioasc = 0;
666 ioasa->hdr.residual_data_len = 0;
1da177e4 667 ipr_cmd->scsi_cmd = NULL;
35a39691 668 ipr_cmd->qc = NULL;
1da177e4
LT		 669 ipr_cmd->sense_buffer[0] = 0;
670 ipr_cmd->dma_use_sg = 0;
671}
672
673/**
674 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
675 * @ipr_cmd: ipr command struct
676 *
677 * Return value:
678 * none
679 **/
172cd6e1
BK		 680static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
681 void (*fast_done) (struct ipr_cmnd *))
1da177e4
LT		 682{
683 ipr_reinit_ipr_cmnd(ipr_cmd);
684 ipr_cmd->u.scratch = 0;
685 ipr_cmd->sibling = NULL;
172cd6e1 686 ipr_cmd->fast_done = fast_done;
1da177e4
LT		 687 init_timer(&ipr_cmd->timer);
688}
689
690/**
00bfef2c 691 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
1da177e4
LT		 692 * @ioa_cfg: ioa config struct
693 *
694 * Return value:
695 * pointer to ipr command struct
696 **/
697static
05a6538a 698struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq)
1da177e4 699{
05a6538a 700 struct ipr_cmnd *ipr_cmd = NULL;
701
702 if (likely(!list_empty(&hrrq->hrrq_free_q))) {
703 ipr_cmd = list_entry(hrrq->hrrq_free_q.next,
704 struct ipr_cmnd, queue);
705 list_del(&ipr_cmd->queue);
706 }
1da177e4 707
1da177e4
LT		 708
709 return ipr_cmd;
710}
711
00bfef2c
BK		 712/**
713 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it
714 * @ioa_cfg: ioa config struct
715 *
716 * Return value:
717 * pointer to ipr command struct
718 **/
719static
720struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
721{
05a6538a 722 struct ipr_cmnd *ipr_cmd =
723 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]);
172cd6e1 724 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
00bfef2c
BK		 725 return ipr_cmd;
726}
727
1da177e4
LT		 728/**
729 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
730 * @ioa_cfg: ioa config struct
731 * @clr_ints: interrupts to clear
732 *
733 * This function masks all interrupts on the adapter, then clears the
734 * interrupts specified in the mask
735 *
736 * Return value:
737 * none
738 **/
739static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
740 u32 clr_ints)
741{
742 volatile u32 int_reg;
56d6aa33 743 int i;
1da177e4
LT		 744
745 /* Stop new interrupts */
56d6aa33 746 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
747 spin_lock(&ioa_cfg->hrrq[i]._lock);
748 ioa_cfg->hrrq[i].allow_interrupts = 0;
749 spin_unlock(&ioa_cfg->hrrq[i]._lock);
750 }
751 wmb();
1da177e4
LT		 752
753 /* Set interrupt mask to stop all new interrupts */
214777ba
WB		 754 if (ioa_cfg->sis64)
755 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
756 else
757 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
1da177e4
LT		 758
759 /* Clear any pending interrupts */
214777ba
WB		 760 if (ioa_cfg->sis64)
761 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
762 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
1da177e4
LT		 763 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
764}
765
766/**
767 * ipr_save_pcix_cmd_reg - Save PCI-X command register
768 * @ioa_cfg: ioa config struct
769 *
770 * Return value:
771 * 0 on success / -EIO on failure
772 **/
773static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
774{
775 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
776
7dce0e1c
BK		 777 if (pcix_cmd_reg == 0)
778 return 0;
1da177e4
LT		 779
780 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
781 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
782 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
783 return -EIO;
784 }
785
786 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
787 return 0;
788}
789
790/**
791 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
792 * @ioa_cfg: ioa config struct
793 *
794 * Return value:
795 * 0 on success / -EIO on failure
796 **/
797static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
798{
799 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
800
801 if (pcix_cmd_reg) {
802 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
803 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
804 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
805 return -EIO;
806 }
1da177e4
LT		 807 }
808
809 return 0;
810}
811
35a39691
BK		 812/**
813 * ipr_sata_eh_done - done function for aborted SATA commands
814 * @ipr_cmd: ipr command struct
815 *
816 * This function is invoked for ops generated to SATA
817 * devices which are being aborted.
818 *
819 * Return value:
820 * none
821 **/
822static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
823{
35a39691
BK		 824 struct ata_queued_cmd *qc = ipr_cmd->qc;
825 struct ipr_sata_port *sata_port = qc->ap->private_data;
826
827 qc->err_mask |= AC_ERR_OTHER;
828 sata_port->ioasa.status |= ATA_BUSY;
05a6538a 829 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
35a39691
BK		 830 ata_qc_complete(qc);
831}
832
1da177e4
LT		 833/**
834 * ipr_scsi_eh_done - mid-layer done function for aborted ops
835 * @ipr_cmd: ipr command struct
836 *
837 * This function is invoked by the interrupt handler for
838 * ops generated by the SCSI mid-layer which are being aborted.
839 *
840 * Return value:
841 * none
842 **/
843static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
844{
1da177e4
LT		 845 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
846
847 scsi_cmd->result |= (DID_ERROR << 16);
848
63015bc9 849 scsi_dma_unmap(ipr_cmd->scsi_cmd);
1da177e4 850 scsi_cmd->scsi_done(scsi_cmd);
05a6538a 851 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 852}
853
854/**
855 * ipr_fail_all_ops - Fails all outstanding ops.
856 * @ioa_cfg: ioa config struct
857 *
858 * This function fails all outstanding ops.
859 *
860 * Return value:
861 * none
862 **/
863static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
864{
865 struct ipr_cmnd *ipr_cmd, *temp;
05a6538a 866 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 867
868 ENTER;
05a6538a 869 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 870 spin_lock(&hrrq->_lock);
05a6538a 871 list_for_each_entry_safe(ipr_cmd,
872 temp, &hrrq->hrrq_pending_q, queue) {
873 list_del(&ipr_cmd->queue);
1da177e4 874
05a6538a 875 ipr_cmd->s.ioasa.hdr.ioasc =
876 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
877 ipr_cmd->s.ioasa.hdr.ilid =
878 cpu_to_be32(IPR_DRIVER_ILID);
1da177e4 879
05a6538a 880 if (ipr_cmd->scsi_cmd)
881 ipr_cmd->done = ipr_scsi_eh_done;
882 else if (ipr_cmd->qc)
883 ipr_cmd->done = ipr_sata_eh_done;
1da177e4 884
05a6538a 885 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH,
886 IPR_IOASC_IOA_WAS_RESET);
887 del_timer(&ipr_cmd->timer);
888 ipr_cmd->done(ipr_cmd);
889 }
56d6aa33 890 spin_unlock(&hrrq->_lock);
1da177e4 891 }
1da177e4
LT		 892 LEAVE;
893}
894
a32c055f
WB		 895/**
896 * ipr_send_command - Send driver initiated requests.
897 * @ipr_cmd: ipr command struct
898 *
899 * This function sends a command to the adapter using the correct write call.
900 * In the case of sis64, calculate the ioarcb size required. Then or in the
901 * appropriate bits.
902 *
903 * Return value:
904 * none
905 **/
906static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
907{
908 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
909 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
910
911 if (ioa_cfg->sis64) {
912 /* The default size is 256 bytes */
913 send_dma_addr |= 0x1;
914
915 /* If the number of ioadls * size of ioadl > 128 bytes,
916 then use a 512 byte ioarcb */
917 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
918 send_dma_addr |= 0x4;
919 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
920 } else
921 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
922}
923
1da177e4
LT		 924/**
925 * ipr_do_req - Send driver initiated requests.
926 * @ipr_cmd: ipr command struct
927 * @done: done function
928 * @timeout_func: timeout function
929 * @timeout: timeout value
930 *
931 * This function sends the specified command to the adapter with the
932 * timeout given. The done function is invoked on command completion.
933 *
934 * Return value:
935 * none
936 **/
937static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
938 void (*done) (struct ipr_cmnd *),
939 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
940{
05a6538a 941 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 942
943 ipr_cmd->done = done;
944
945 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
946 ipr_cmd->timer.expires = jiffies + timeout;
947 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
948
949 add_timer(&ipr_cmd->timer);
950
951 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
952
a32c055f 953 ipr_send_command(ipr_cmd);
1da177e4
LT		 954}
955
956/**
957 * ipr_internal_cmd_done - Op done function for an internally generated op.
958 * @ipr_cmd: ipr command struct
959 *
960 * This function is the op done function for an internally generated,
961 * blocking op. It simply wakes the sleeping thread.
962 *
963 * Return value:
964 * none
965 **/
966static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
967{
968 if (ipr_cmd->sibling)
969 ipr_cmd->sibling = NULL;
970 else
971 complete(&ipr_cmd->completion);
972}
973
a32c055f
WB		 974/**
975 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
976 * @ipr_cmd: ipr command struct
977 * @dma_addr: dma address
978 * @len: transfer length
979 * @flags: ioadl flag value
980 *
981 * This function initializes an ioadl in the case where there is only a single
982 * descriptor.
983 *
984 * Return value:
985 * nothing
986 **/
987static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
988 u32 len, int flags)
989{
990 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
991 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
992
993 ipr_cmd->dma_use_sg = 1;
994
995 if (ipr_cmd->ioa_cfg->sis64) {
996 ioadl64->flags = cpu_to_be32(flags);
997 ioadl64->data_len = cpu_to_be32(len);
998 ioadl64->address = cpu_to_be64(dma_addr);
999
1000 ipr_cmd->ioarcb.ioadl_len =
1001 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
1002 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1003 } else {
1004 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
1005 ioadl->address = cpu_to_be32(dma_addr);
1006
1007 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
1008 ipr_cmd->ioarcb.read_ioadl_len =
1009 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1010 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
1011 } else {
1012 ipr_cmd->ioarcb.ioadl_len =
1013 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
1014 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
1015 }
1016 }
1017}
1018
1da177e4
LT		 1019/**
1020 * ipr_send_blocking_cmd - Send command and sleep on its completion.
1021 * @ipr_cmd: ipr command struct
1022 * @timeout_func: function to invoke if command times out
1023 * @timeout: timeout
1024 *
1025 * Return value:
1026 * none
1027 **/
1028static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
1029 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
1030 u32 timeout)
1031{
1032 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1033
1034 init_completion(&ipr_cmd->completion);
1035 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
1036
1037 spin_unlock_irq(ioa_cfg->host->host_lock);
1038 wait_for_completion(&ipr_cmd->completion);
1039 spin_lock_irq(ioa_cfg->host->host_lock);
1040}
1041
05a6538a 1042static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg)
1043{
1044 if (ioa_cfg->hrrq_num == 1)
56d6aa33 1045 return 0;
1046 else
1047 return (atomic_add_return(1, &ioa_cfg->hrrq_index) % (ioa_cfg->hrrq_num - 1)) + 1;
05a6538a 1048}
1049
1da177e4
LT		 1050/**
1051 * ipr_send_hcam - Send an HCAM to the adapter.
1052 * @ioa_cfg: ioa config struct
1053 * @type: HCAM type
1054 * @hostrcb: hostrcb struct
1055 *
1056 * This function will send a Host Controlled Async command to the adapter.
1057 * If HCAMs are currently not allowed to be issued to the adapter, it will
1058 * place the hostrcb on the free queue.
1059 *
1060 * Return value:
1061 * none
1062 **/
1063static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
1064 struct ipr_hostrcb *hostrcb)
1065{
1066 struct ipr_cmnd *ipr_cmd;
1067 struct ipr_ioarcb *ioarcb;
1068
56d6aa33 1069 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
1da177e4 1070 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
05a6538a 1071 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 1072 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
1073
1074 ipr_cmd->u.hostrcb = hostrcb;
1075 ioarcb = &ipr_cmd->ioarcb;
1076
1077 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1078 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
1079 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
1080 ioarcb->cmd_pkt.cdb[1] = type;
1081 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
1082 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
1083
a32c055f
WB		 1084 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
1085 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 1086
1087 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
1088 ipr_cmd->done = ipr_process_ccn;
1089 else
1090 ipr_cmd->done = ipr_process_error;
1091
1092 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
1093
a32c055f 1094 ipr_send_command(ipr_cmd);
1da177e4
LT		 1095 } else {
1096 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
1097 }
1098}
1099
3e7ebdfa
WB		 1100/**
1101 * ipr_update_ata_class - Update the ata class in the resource entry
1102 * @res: resource entry struct
1103 * @proto: cfgte device bus protocol value
1104 *
1105 * Return value:
1106 * none
1107 **/
1108static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1109{
203fa3fe 1110 switch (proto) {
3e7ebdfa
WB		 1111 case IPR_PROTO_SATA:
1112 case IPR_PROTO_SAS_STP:
1113 res->ata_class = ATA_DEV_ATA;
1114 break;
1115 case IPR_PROTO_SATA_ATAPI:
1116 case IPR_PROTO_SAS_STP_ATAPI:
1117 res->ata_class = ATA_DEV_ATAPI;
1118 break;
1119 default:
1120 res->ata_class = ATA_DEV_UNKNOWN;
1121 break;
1122 };
1123}
1124
1da177e4
LT		 1125/**
1126 * ipr_init_res_entry - Initialize a resource entry struct.
1127 * @res: resource entry struct
3e7ebdfa 1128 * @cfgtew: config table entry wrapper struct
1da177e4
LT		 1129 *
1130 * Return value:
1131 * none
1132 **/
3e7ebdfa
WB		 1133static void ipr_init_res_entry(struct ipr_resource_entry *res,
1134 struct ipr_config_table_entry_wrapper *cfgtew)
1da177e4 1135{
3e7ebdfa
WB		 1136 int found = 0;
1137 unsigned int proto;
1138 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1139 struct ipr_resource_entry *gscsi_res = NULL;
1140
ee0a90fa 1141 res->needs_sync_complete = 0;
1da177e4
LT		 1142 res->in_erp = 0;
1143 res->add_to_ml = 0;
1144 res->del_from_ml = 0;
1145 res->resetting_device = 0;
0b1f8d44 1146 res->reset_occurred = 0;
1da177e4 1147 res->sdev = NULL;
35a39691 1148 res->sata_port = NULL;
3e7ebdfa
WB		 1149
1150 if (ioa_cfg->sis64) {
1151 proto = cfgtew->u.cfgte64->proto;
1152 res->res_flags = cfgtew->u.cfgte64->res_flags;
1153 res->qmodel = IPR_QUEUEING_MODEL64(res);
438b0331 1154 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1155
1156 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1157 sizeof(res->res_path));
1158
1159 res->bus = 0;
0cb992ed
WB		 1160 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1161 sizeof(res->dev_lun.scsi_lun));
3e7ebdfa
WB		 1162 res->lun = scsilun_to_int(&res->dev_lun);
1163
1164 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1165 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1166 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1167 found = 1;
1168 res->target = gscsi_res->target;
1169 break;
1170 }
1171 }
1172 if (!found) {
1173 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1174 ioa_cfg->max_devs_supported);
1175 set_bit(res->target, ioa_cfg->target_ids);
1176 }
3e7ebdfa
WB		 1177 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1178 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1179 res->target = 0;
1180 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1181 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1182 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1183 ioa_cfg->max_devs_supported);
1184 set_bit(res->target, ioa_cfg->array_ids);
1185 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1186 res->bus = IPR_VSET_VIRTUAL_BUS;
1187 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1188 ioa_cfg->max_devs_supported);
1189 set_bit(res->target, ioa_cfg->vset_ids);
1190 } else {
1191 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1192 ioa_cfg->max_devs_supported);
1193 set_bit(res->target, ioa_cfg->target_ids);
1194 }
1195 } else {
1196 proto = cfgtew->u.cfgte->proto;
1197 res->qmodel = IPR_QUEUEING_MODEL(res);
1198 res->flags = cfgtew->u.cfgte->flags;
1199 if (res->flags & IPR_IS_IOA_RESOURCE)
1200 res->type = IPR_RES_TYPE_IOAFP;
1201 else
1202 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1203
1204 res->bus = cfgtew->u.cfgte->res_addr.bus;
1205 res->target = cfgtew->u.cfgte->res_addr.target;
1206 res->lun = cfgtew->u.cfgte->res_addr.lun;
46d74563 1207 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
3e7ebdfa
WB		 1208 }
1209
1210 ipr_update_ata_class(res, proto);
1211}
1212
1213/**
1214 * ipr_is_same_device - Determine if two devices are the same.
1215 * @res: resource entry struct
1216 * @cfgtew: config table entry wrapper struct
1217 *
1218 * Return value:
1219 * 1 if the devices are the same / 0 otherwise
1220 **/
1221static int ipr_is_same_device(struct ipr_resource_entry *res,
1222 struct ipr_config_table_entry_wrapper *cfgtew)
1223{
1224 if (res->ioa_cfg->sis64) {
1225 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1226 sizeof(cfgtew->u.cfgte64->dev_id)) &&
0cb992ed 1227 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
3e7ebdfa
WB		 1228 sizeof(cfgtew->u.cfgte64->lun))) {
1229 return 1;
1230 }
1231 } else {
1232 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1233 res->target == cfgtew->u.cfgte->res_addr.target &&
1234 res->lun == cfgtew->u.cfgte->res_addr.lun)
1235 return 1;
1236 }
1237
1238 return 0;
1239}
1240
1241/**
b3b3b407 1242 * __ipr_format_res_path - Format the resource path for printing.
3e7ebdfa
WB		 1243 * @res_path: resource path
1244 * @buf: buffer
b3b3b407 1245 * @len: length of buffer provided
3e7ebdfa
WB		 1246 *
1247 * Return value:
1248 * pointer to buffer
1249 **/
b3b3b407 1250static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len)
3e7ebdfa
WB		 1251{
1252 int i;
5adcbeb3 1253 char *p = buffer;
3e7ebdfa 1254
46d74563 1255 *p = '\0';
5adcbeb3
WB		 1256 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1257 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1258 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
3e7ebdfa
WB		 1259
1260 return buffer;
1261}
1262
b3b3b407
BK		 1263/**
1264 * ipr_format_res_path - Format the resource path for printing.
1265 * @ioa_cfg: ioa config struct
1266 * @res_path: resource path
1267 * @buf: buffer
1268 * @len: length of buffer provided
1269 *
1270 * Return value:
1271 * pointer to buffer
1272 **/
1273static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg,
1274 u8 *res_path, char *buffer, int len)
1275{
1276 char *p = buffer;
1277
1278 *p = '\0';
1279 p += snprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no);
1280 __ipr_format_res_path(res_path, p, len - (buffer - p));
1281 return buffer;
1282}
1283
3e7ebdfa
WB		 1284/**
1285 * ipr_update_res_entry - Update the resource entry.
1286 * @res: resource entry struct
1287 * @cfgtew: config table entry wrapper struct
1288 *
1289 * Return value:
1290 * none
1291 **/
1292static void ipr_update_res_entry(struct ipr_resource_entry *res,
1293 struct ipr_config_table_entry_wrapper *cfgtew)
1294{
1295 char buffer[IPR_MAX_RES_PATH_LENGTH];
1296 unsigned int proto;
1297 int new_path = 0;
1298
1299 if (res->ioa_cfg->sis64) {
1300 res->flags = cfgtew->u.cfgte64->flags;
1301 res->res_flags = cfgtew->u.cfgte64->res_flags;
75576bb9 1302 res->type = cfgtew->u.cfgte64->res_type;
3e7ebdfa
WB		 1303
1304 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1305 sizeof(struct ipr_std_inq_data));
1306
1307 res->qmodel = IPR_QUEUEING_MODEL64(res);
1308 proto = cfgtew->u.cfgte64->proto;
1309 res->res_handle = cfgtew->u.cfgte64->res_handle;
1310 res->dev_id = cfgtew->u.cfgte64->dev_id;
1311
1312 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1313 sizeof(res->dev_lun.scsi_lun));
1314
1315 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1316 sizeof(res->res_path))) {
1317 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1318 sizeof(res->res_path));
1319 new_path = 1;
1320 }
1321
1322 if (res->sdev && new_path)
1323 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
b3b3b407
BK		 1324 ipr_format_res_path(res->ioa_cfg,
1325 res->res_path, buffer, sizeof(buffer)));
3e7ebdfa
WB		 1326 } else {
1327 res->flags = cfgtew->u.cfgte->flags;
1328 if (res->flags & IPR_IS_IOA_RESOURCE)
1329 res->type = IPR_RES_TYPE_IOAFP;
1330 else
1331 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1332
1333 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1334 sizeof(struct ipr_std_inq_data));
1335
1336 res->qmodel = IPR_QUEUEING_MODEL(res);
1337 proto = cfgtew->u.cfgte->proto;
1338 res->res_handle = cfgtew->u.cfgte->res_handle;
1339 }
1340
1341 ipr_update_ata_class(res, proto);
1342}
1343
1344/**
1345 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1346 * for the resource.
1347 * @res: resource entry struct
1348 * @cfgtew: config table entry wrapper struct
1349 *
1350 * Return value:
1351 * none
1352 **/
1353static void ipr_clear_res_target(struct ipr_resource_entry *res)
1354{
1355 struct ipr_resource_entry *gscsi_res = NULL;
1356 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1357
1358 if (!ioa_cfg->sis64)
1359 return;
1360
1361 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1362 clear_bit(res->target, ioa_cfg->array_ids);
1363 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1364 clear_bit(res->target, ioa_cfg->vset_ids);
1365 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1366 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1367 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1368 return;
1369 clear_bit(res->target, ioa_cfg->target_ids);
1370
1371 } else if (res->bus == 0)
1372 clear_bit(res->target, ioa_cfg->target_ids);
1da177e4
LT		 1373}
1374
1375/**
1376 * ipr_handle_config_change - Handle a config change from the adapter
1377 * @ioa_cfg: ioa config struct
1378 * @hostrcb: hostrcb
1379 *
1380 * Return value:
1381 * none
1382 **/
1383static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
3e7ebdfa 1384 struct ipr_hostrcb *hostrcb)
1da177e4
LT		 1385{
1386 struct ipr_resource_entry *res = NULL;
3e7ebdfa
WB		 1387 struct ipr_config_table_entry_wrapper cfgtew;
1388 __be32 cc_res_handle;
1389
1da177e4
LT		 1390 u32 is_ndn = 1;
1391
3e7ebdfa
WB		 1392 if (ioa_cfg->sis64) {
1393 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1394 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1395 } else {
1396 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1397 cc_res_handle = cfgtew.u.cfgte->res_handle;
1398 }
1da177e4
LT		 1399
1400 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 1401 if (res->res_handle == cc_res_handle) {
1da177e4
LT		 1402 is_ndn = 0;
1403 break;
1404 }
1405 }
1406
1407 if (is_ndn) {
1408 if (list_empty(&ioa_cfg->free_res_q)) {
1409 ipr_send_hcam(ioa_cfg,
1410 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1411 hostrcb);
1412 return;
1413 }
1414
1415 res = list_entry(ioa_cfg->free_res_q.next,
1416 struct ipr_resource_entry, queue);
1417
1418 list_del(&res->queue);
3e7ebdfa 1419 ipr_init_res_entry(res, &cfgtew);
1da177e4
LT		 1420 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1421 }
1422
3e7ebdfa 1423 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 1424
1425 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1426 if (res->sdev) {
1da177e4 1427 res->del_from_ml = 1;
3e7ebdfa 1428 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4
LT		 1429 if (ioa_cfg->allow_ml_add_del)
1430 schedule_work(&ioa_cfg->work_q);
3e7ebdfa
WB		 1431 } else {
1432 ipr_clear_res_target(res);
1da177e4 1433 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3e7ebdfa 1434 }
5767a1c4 1435 } else if (!res->sdev || res->del_from_ml) {
1da177e4
LT		 1436 res->add_to_ml = 1;
1437 if (ioa_cfg->allow_ml_add_del)
1438 schedule_work(&ioa_cfg->work_q);
1439 }
1440
1441 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1442}
1443
1444/**
1445 * ipr_process_ccn - Op done function for a CCN.
1446 * @ipr_cmd: ipr command struct
1447 *
1448 * This function is the op done function for a configuration
1449 * change notification host controlled async from the adapter.
1450 *
1451 * Return value:
1452 * none
1453 **/
1454static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1455{
1456 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1457 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 1458 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 1459
1460 list_del(&hostrcb->queue);
05a6538a 1461 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 1462
1463 if (ioasc) {
1464 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1465 dev_err(&ioa_cfg->pdev->dev,
1466 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1467
1468 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1469 } else {
1470 ipr_handle_config_change(ioa_cfg, hostrcb);
1471 }
1472}
1473
8cf093e2
BK		 1474/**
1475 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1476 * @i: index into buffer
1477 * @buf: string to modify
1478 *
1479 * This function will strip all trailing whitespace, pad the end
1480 * of the string with a single space, and NULL terminate the string.
1481 *
1482 * Return value:
1483 * new length of string
1484 **/
1485static int strip_and_pad_whitespace(int i, char *buf)
1486{
1487 while (i && buf[i] == ' ')
1488 i--;
1489 buf[i+1] = ' ';
1490 buf[i+2] = '\0';
1491 return i + 2;
1492}
1493
1494/**
1495 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1496 * @prefix: string to print at start of printk
1497 * @hostrcb: hostrcb pointer
1498 * @vpd: vendor/product id/sn struct
1499 *
1500 * Return value:
1501 * none
1502 **/
1503static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1504 struct ipr_vpd *vpd)
1505{
1506 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1507 int i = 0;
1508
1509 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1510 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1511
1512 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1513 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1514
1515 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1516 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1517
1518 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1519}
1520
1da177e4
LT		 1521/**
1522 * ipr_log_vpd - Log the passed VPD to the error log.
cfc32139 1523 * @vpd: vendor/product id/sn struct
1da177e4
LT		 1524 *
1525 * Return value:
1526 * none
1527 **/
cfc32139 1528static void ipr_log_vpd(struct ipr_vpd *vpd)
1da177e4
LT		 1529{
1530 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1531 + IPR_SERIAL_NUM_LEN];
1532
cfc32139
BK		 1533 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1534 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1da177e4
LT		 1535 IPR_PROD_ID_LEN);
1536 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1537 ipr_err("Vendor/Product ID: %s\n", buffer);
1538
cfc32139 1539 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1da177e4
LT		 1540 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1541 ipr_err(" Serial Number: %s\n", buffer);
1542}
1543
8cf093e2
BK		 1544/**
1545 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1546 * @prefix: string to print at start of printk
1547 * @hostrcb: hostrcb pointer
1548 * @vpd: vendor/product id/sn/wwn struct
1549 *
1550 * Return value:
1551 * none
1552 **/
1553static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1554 struct ipr_ext_vpd *vpd)
1555{
1556 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1557 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1558 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1559}
1560
ee0f05b8
BK		 1561/**
1562 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1563 * @vpd: vendor/product id/sn/wwn struct
1564 *
1565 * Return value:
1566 * none
1567 **/
1568static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1569{
1570 ipr_log_vpd(&vpd->vpd);
1571 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1572 be32_to_cpu(vpd->wwid[1]));
1573}
1574
1575/**
1576 * ipr_log_enhanced_cache_error - Log a cache error.
1577 * @ioa_cfg: ioa config struct
1578 * @hostrcb: hostrcb struct
1579 *
1580 * Return value:
1581 * none
1582 **/
1583static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1584 struct ipr_hostrcb *hostrcb)
1585{
4565e370
WB		 1586 struct ipr_hostrcb_type_12_error *error;
1587
1588 if (ioa_cfg->sis64)
1589 error = &hostrcb->hcam.u.error64.u.type_12_error;
1590 else
1591 error = &hostrcb->hcam.u.error.u.type_12_error;
ee0f05b8
BK		 1592
1593 ipr_err("-----Current Configuration-----\n");
1594 ipr_err("Cache Directory Card Information:\n");
1595 ipr_log_ext_vpd(&error->ioa_vpd);
1596 ipr_err("Adapter Card Information:\n");
1597 ipr_log_ext_vpd(&error->cfc_vpd);
1598
1599 ipr_err("-----Expected Configuration-----\n");
1600 ipr_err("Cache Directory Card Information:\n");
1601 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1602 ipr_err("Adapter Card Information:\n");
1603 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1604
1605 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1606 be32_to_cpu(error->ioa_data[0]),
1607 be32_to_cpu(error->ioa_data[1]),
1608 be32_to_cpu(error->ioa_data[2]));
1609}
1610
1da177e4
LT		 1611/**
1612 * ipr_log_cache_error - Log a cache error.
1613 * @ioa_cfg: ioa config struct
1614 * @hostrcb: hostrcb struct
1615 *
1616 * Return value:
1617 * none
1618 **/
1619static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1620 struct ipr_hostrcb *hostrcb)
1621{
1622 struct ipr_hostrcb_type_02_error *error =
1623 &hostrcb->hcam.u.error.u.type_02_error;
1624
1625 ipr_err("-----Current Configuration-----\n");
1626 ipr_err("Cache Directory Card Information:\n");
cfc32139 1627 ipr_log_vpd(&error->ioa_vpd);
1da177e4 1628 ipr_err("Adapter Card Information:\n");
cfc32139 1629 ipr_log_vpd(&error->cfc_vpd);
1da177e4
LT		 1630
1631 ipr_err("-----Expected Configuration-----\n");
1632 ipr_err("Cache Directory Card Information:\n");
cfc32139 1633 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1da177e4 1634 ipr_err("Adapter Card Information:\n");
cfc32139 1635 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1da177e4
LT		 1636
1637 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1638 be32_to_cpu(error->ioa_data[0]),
1639 be32_to_cpu(error->ioa_data[1]),
1640 be32_to_cpu(error->ioa_data[2]));
1641}
1642
ee0f05b8
BK		 1643/**
1644 * ipr_log_enhanced_config_error - Log a configuration error.
1645 * @ioa_cfg: ioa config struct
1646 * @hostrcb: hostrcb struct
1647 *
1648 * Return value:
1649 * none
1650 **/
1651static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1652 struct ipr_hostrcb *hostrcb)
1653{
1654 int errors_logged, i;
1655 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1656 struct ipr_hostrcb_type_13_error *error;
1657
1658 error = &hostrcb->hcam.u.error.u.type_13_error;
1659 errors_logged = be32_to_cpu(error->errors_logged);
1660
1661 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1662 be32_to_cpu(error->errors_detected), errors_logged);
1663
1664 dev_entry = error->dev;
1665
1666 for (i = 0; i < errors_logged; i++, dev_entry++) {
1667 ipr_err_separator;
1668
1669 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1670 ipr_log_ext_vpd(&dev_entry->vpd);
1671
1672 ipr_err("-----New Device Information-----\n");
1673 ipr_log_ext_vpd(&dev_entry->new_vpd);
1674
1675 ipr_err("Cache Directory Card Information:\n");
1676 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1677
1678 ipr_err("Adapter Card Information:\n");
1679 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1680 }
1681}
1682
4565e370
WB		 1683/**
1684 * ipr_log_sis64_config_error - Log a device error.
1685 * @ioa_cfg: ioa config struct
1686 * @hostrcb: hostrcb struct
1687 *
1688 * Return value:
1689 * none
1690 **/
1691static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1692 struct ipr_hostrcb *hostrcb)
1693{
1694 int errors_logged, i;
1695 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1696 struct ipr_hostrcb_type_23_error *error;
1697 char buffer[IPR_MAX_RES_PATH_LENGTH];
1698
1699 error = &hostrcb->hcam.u.error64.u.type_23_error;
1700 errors_logged = be32_to_cpu(error->errors_logged);
1701
1702 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1703 be32_to_cpu(error->errors_detected), errors_logged);
1704
1705 dev_entry = error->dev;
1706
1707 for (i = 0; i < errors_logged; i++, dev_entry++) {
1708 ipr_err_separator;
1709
1710 ipr_err("Device %d : %s", i + 1,
b3b3b407
BK		 1711 __ipr_format_res_path(dev_entry->res_path,
1712 buffer, sizeof(buffer)));
4565e370
WB		 1713 ipr_log_ext_vpd(&dev_entry->vpd);
1714
1715 ipr_err("-----New Device Information-----\n");
1716 ipr_log_ext_vpd(&dev_entry->new_vpd);
1717
1718 ipr_err("Cache Directory Card Information:\n");
1719 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1720
1721 ipr_err("Adapter Card Information:\n");
1722 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1723 }
1724}
1725
1da177e4
LT		 1726/**
1727 * ipr_log_config_error - Log a configuration error.
1728 * @ioa_cfg: ioa config struct
1729 * @hostrcb: hostrcb struct
1730 *
1731 * Return value:
1732 * none
1733 **/
1734static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1735 struct ipr_hostrcb *hostrcb)
1736{
1737 int errors_logged, i;
1738 struct ipr_hostrcb_device_data_entry *dev_entry;
1739 struct ipr_hostrcb_type_03_error *error;
1740
1741 error = &hostrcb->hcam.u.error.u.type_03_error;
1742 errors_logged = be32_to_cpu(error->errors_logged);
1743
1744 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1745 be32_to_cpu(error->errors_detected), errors_logged);
1746
cfc32139 1747 dev_entry = error->dev;
1da177e4
LT		 1748
1749 for (i = 0; i < errors_logged; i++, dev_entry++) {
1750 ipr_err_separator;
1751
fa15b1f6 1752 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
cfc32139 1753 ipr_log_vpd(&dev_entry->vpd);
1da177e4
LT		 1754
1755 ipr_err("-----New Device Information-----\n");
cfc32139 1756 ipr_log_vpd(&dev_entry->new_vpd);
1da177e4
LT		 1757
1758 ipr_err("Cache Directory Card Information:\n");
cfc32139 1759 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1da177e4
LT		 1760
1761 ipr_err("Adapter Card Information:\n");
cfc32139 1762 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1da177e4
LT		 1763
1764 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1765 be32_to_cpu(dev_entry->ioa_data[0]),
1766 be32_to_cpu(dev_entry->ioa_data[1]),
1767 be32_to_cpu(dev_entry->ioa_data[2]),
1768 be32_to_cpu(dev_entry->ioa_data[3]),
1769 be32_to_cpu(dev_entry->ioa_data[4]));
1770 }
1771}
1772
ee0f05b8
BK		 1773/**
1774 * ipr_log_enhanced_array_error - Log an array configuration error.
1775 * @ioa_cfg: ioa config struct
1776 * @hostrcb: hostrcb struct
1777 *
1778 * Return value:
1779 * none
1780 **/
1781static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1782 struct ipr_hostrcb *hostrcb)
1783{
1784 int i, num_entries;
1785 struct ipr_hostrcb_type_14_error *error;
1786 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1787 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1788
1789 error = &hostrcb->hcam.u.error.u.type_14_error;
1790
1791 ipr_err_separator;
1792
1793 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1794 error->protection_level,
1795 ioa_cfg->host->host_no,
1796 error->last_func_vset_res_addr.bus,
1797 error->last_func_vset_res_addr.target,
1798 error->last_func_vset_res_addr.lun);
1799
1800 ipr_err_separator;
1801
1802 array_entry = error->array_member;
1803 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
7262026f 1804 ARRAY_SIZE(error->array_member));
ee0f05b8
BK		 1805
1806 for (i = 0; i < num_entries; i++, array_entry++) {
1807 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1808 continue;
1809
1810 if (be32_to_cpu(error->exposed_mode_adn) == i)
1811 ipr_err("Exposed Array Member %d:\n", i);
1812 else
1813 ipr_err("Array Member %d:\n", i);
1814
1815 ipr_log_ext_vpd(&array_entry->vpd);
1816 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1817 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1818 "Expected Location");
1819
1820 ipr_err_separator;
1821 }
1822}
1823
1da177e4
LT		 1824/**
1825 * ipr_log_array_error - Log an array configuration error.
1826 * @ioa_cfg: ioa config struct
1827 * @hostrcb: hostrcb struct
1828 *
1829 * Return value:
1830 * none
1831 **/
1832static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1833 struct ipr_hostrcb *hostrcb)
1834{
1835 int i;
1836 struct ipr_hostrcb_type_04_error *error;
1837 struct ipr_hostrcb_array_data_entry *array_entry;
1838 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1839
1840 error = &hostrcb->hcam.u.error.u.type_04_error;
1841
1842 ipr_err_separator;
1843
1844 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1845 error->protection_level,
1846 ioa_cfg->host->host_no,
1847 error->last_func_vset_res_addr.bus,
1848 error->last_func_vset_res_addr.target,
1849 error->last_func_vset_res_addr.lun);
1850
1851 ipr_err_separator;
1852
1853 array_entry = error->array_member;
1854
1855 for (i = 0; i < 18; i++) {
cfc32139 1856 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1da177e4
LT		 1857 continue;
1858
fa15b1f6 1859 if (be32_to_cpu(error->exposed_mode_adn) == i)
1da177e4 1860 ipr_err("Exposed Array Member %d:\n", i);
fa15b1f6 1861 else
1da177e4 1862 ipr_err("Array Member %d:\n", i);
1da177e4 1863
cfc32139 1864 ipr_log_vpd(&array_entry->vpd);
1da177e4 1865
fa15b1f6
BK		 1866 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1867 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1868 "Expected Location");
1da177e4
LT		 1869
1870 ipr_err_separator;
1871
1872 if (i == 9)
1873 array_entry = error->array_member2;
1874 else
1875 array_entry++;
1876 }
1877}
1878
1879/**
b0df54bb 1880 * ipr_log_hex_data - Log additional hex IOA error data.
ac719aba 1881 * @ioa_cfg: ioa config struct
b0df54bb
BK		 1882 * @data: IOA error data
1883 * @len: data length
1da177e4
LT		 1884 *
1885 * Return value:
1886 * none
1887 **/
ac719aba 1888static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1da177e4
LT		 1889{
1890 int i;
1da177e4 1891
b0df54bb 1892 if (len == 0)
1da177e4
LT		 1893 return;
1894
ac719aba
BK		 1895 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1896 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1897
b0df54bb 1898 for (i = 0; i < len / 4; i += 4) {
1da177e4 1899 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
b0df54bb
BK		 1900 be32_to_cpu(data[i]),
1901 be32_to_cpu(data[i+1]),
1902 be32_to_cpu(data[i+2]),
1903 be32_to_cpu(data[i+3]));
1da177e4
LT		 1904 }
1905}
1906
ee0f05b8
BK		 1907/**
1908 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1909 * @ioa_cfg: ioa config struct
1910 * @hostrcb: hostrcb struct
1911 *
1912 * Return value:
1913 * none
1914 **/
1915static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1916 struct ipr_hostrcb *hostrcb)
1917{
1918 struct ipr_hostrcb_type_17_error *error;
1919
4565e370
WB		 1920 if (ioa_cfg->sis64)
1921 error = &hostrcb->hcam.u.error64.u.type_17_error;
1922 else
1923 error = &hostrcb->hcam.u.error.u.type_17_error;
1924
ee0f05b8 1925 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1926 strim(error->failure_reason);
ee0f05b8 1927
8cf093e2
BK		 1928 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1929 be32_to_cpu(hostrcb->hcam.u.error.prc));
1930 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1931 ipr_log_hex_data(ioa_cfg, error->data,
ee0f05b8
BK		 1932 be32_to_cpu(hostrcb->hcam.length) -
1933 (offsetof(struct ipr_hostrcb_error, u) +
1934 offsetof(struct ipr_hostrcb_type_17_error, data)));
1935}
1936
b0df54bb
BK		 1937/**
1938 * ipr_log_dual_ioa_error - Log a dual adapter error.
1939 * @ioa_cfg: ioa config struct
1940 * @hostrcb: hostrcb struct
1941 *
1942 * Return value:
1943 * none
1944 **/
1945static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1946 struct ipr_hostrcb *hostrcb)
1947{
1948 struct ipr_hostrcb_type_07_error *error;
1949
1950 error = &hostrcb->hcam.u.error.u.type_07_error;
1951 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
ca54cb8c 1952 strim(error->failure_reason);
b0df54bb 1953
8cf093e2
BK		 1954 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1955 be32_to_cpu(hostrcb->hcam.u.error.prc));
1956 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
ac719aba 1957 ipr_log_hex_data(ioa_cfg, error->data,
b0df54bb
BK		 1958 be32_to_cpu(hostrcb->hcam.length) -
1959 (offsetof(struct ipr_hostrcb_error, u) +
1960 offsetof(struct ipr_hostrcb_type_07_error, data)));
1961}
1962
49dc6a18
BK		 1963static const struct {
1964 u8 active;
1965 char *desc;
1966} path_active_desc[] = {
1967 { IPR_PATH_NO_INFO, "Path" },
1968 { IPR_PATH_ACTIVE, "Active path" },
1969 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1970};
1971
1972static const struct {
1973 u8 state;
1974 char *desc;
1975} path_state_desc[] = {
1976 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1977 { IPR_PATH_HEALTHY, "is healthy" },
1978 { IPR_PATH_DEGRADED, "is degraded" },
1979 { IPR_PATH_FAILED, "is failed" }
1980};
1981
1982/**
1983 * ipr_log_fabric_path - Log a fabric path error
1984 * @hostrcb: hostrcb struct
1985 * @fabric: fabric descriptor
1986 *
1987 * Return value:
1988 * none
1989 **/
1990static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1991 struct ipr_hostrcb_fabric_desc *fabric)
1992{
1993 int i, j;
1994 u8 path_state = fabric->path_state;
1995 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1996 u8 state = path_state & IPR_PATH_STATE_MASK;
1997
1998 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1999 if (path_active_desc[i].active != active)
2000 continue;
2001
2002 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2003 if (path_state_desc[j].state != state)
2004 continue;
2005
2006 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
2007 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
2008 path_active_desc[i].desc, path_state_desc[j].desc,
2009 fabric->ioa_port);
2010 } else if (fabric->cascaded_expander == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
2012 path_active_desc[i].desc, path_state_desc[j].desc,
2013 fabric->ioa_port, fabric->phy);
2014 } else if (fabric->phy == 0xff) {
2015 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
2016 path_active_desc[i].desc, path_state_desc[j].desc,
2017 fabric->ioa_port, fabric->cascaded_expander);
2018 } else {
2019 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
2020 path_active_desc[i].desc, path_state_desc[j].desc,
2021 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2022 }
2023 return;
2024 }
2025 }
2026
2027 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
2028 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
2029}
2030
4565e370
WB		 2031/**
2032 * ipr_log64_fabric_path - Log a fabric path error
2033 * @hostrcb: hostrcb struct
2034 * @fabric: fabric descriptor
2035 *
2036 * Return value:
2037 * none
2038 **/
2039static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
2040 struct ipr_hostrcb64_fabric_desc *fabric)
2041{
2042 int i, j;
2043 u8 path_state = fabric->path_state;
2044 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
2045 u8 state = path_state & IPR_PATH_STATE_MASK;
2046 char buffer[IPR_MAX_RES_PATH_LENGTH];
2047
2048 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
2049 if (path_active_desc[i].active != active)
2050 continue;
2051
2052 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
2053 if (path_state_desc[j].state != state)
2054 continue;
2055
2056 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
2057 path_active_desc[i].desc, path_state_desc[j].desc,
b3b3b407
BK		 2058 ipr_format_res_path(hostrcb->ioa_cfg,
2059 fabric->res_path,
2060 buffer, sizeof(buffer)));
4565e370
WB		 2061 return;
2062 }
2063 }
2064
2065 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
b3b3b407
BK		 2066 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path,
2067 buffer, sizeof(buffer)));
4565e370
WB		 2068}
2069
49dc6a18
BK		 2070static const struct {
2071 u8 type;
2072 char *desc;
2073} path_type_desc[] = {
2074 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
2075 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
2076 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
2077 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
2078};
2079
2080static const struct {
2081 u8 status;
2082 char *desc;
2083} path_status_desc[] = {
2084 { IPR_PATH_CFG_NO_PROB, "Functional" },
2085 { IPR_PATH_CFG_DEGRADED, "Degraded" },
2086 { IPR_PATH_CFG_FAILED, "Failed" },
2087 { IPR_PATH_CFG_SUSPECT, "Suspect" },
2088 { IPR_PATH_NOT_DETECTED, "Missing" },
2089 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
2090};
2091
2092static const char *link_rate[] = {
2093 "unknown",
2094 "disabled",
2095 "phy reset problem",
2096 "spinup hold",
2097 "port selector",
2098 "unknown",
2099 "unknown",
2100 "unknown",
2101 "1.5Gbps",
2102 "3.0Gbps",
2103 "unknown",
2104 "unknown",
2105 "unknown",
2106 "unknown",
2107 "unknown",
2108 "unknown"
2109};
2110
2111/**
2112 * ipr_log_path_elem - Log a fabric path element.
2113 * @hostrcb: hostrcb struct
2114 * @cfg: fabric path element struct
2115 *
2116 * Return value:
2117 * none
2118 **/
2119static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
2120 struct ipr_hostrcb_config_element *cfg)
2121{
2122 int i, j;
2123 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2124 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2125
2126 if (type == IPR_PATH_CFG_NOT_EXIST)
2127 return;
2128
2129 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2130 if (path_type_desc[i].type != type)
2131 continue;
2132
2133 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2134 if (path_status_desc[j].status != status)
2135 continue;
2136
2137 if (type == IPR_PATH_CFG_IOA_PORT) {
2138 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2139 path_status_desc[j].desc, path_type_desc[i].desc,
2140 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2141 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2142 } else {
2143 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2144 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2145 path_status_desc[j].desc, path_type_desc[i].desc,
2146 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2147 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2148 } else if (cfg->cascaded_expander == 0xff) {
2149 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2150 "WWN=%08X%08X\n", path_status_desc[j].desc,
2151 path_type_desc[i].desc, cfg->phy,
2152 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2153 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2154 } else if (cfg->phy == 0xff) {
2155 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2156 "WWN=%08X%08X\n", path_status_desc[j].desc,
2157 path_type_desc[i].desc, cfg->cascaded_expander,
2158 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2159 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2160 } else {
2161 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2162 "WWN=%08X%08X\n", path_status_desc[j].desc,
2163 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2164 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2165 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2166 }
2167 }
2168 return;
2169 }
2170 }
2171
2172 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2173 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2174 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2175 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2176}
2177
4565e370
WB		 2178/**
2179 * ipr_log64_path_elem - Log a fabric path element.
2180 * @hostrcb: hostrcb struct
2181 * @cfg: fabric path element struct
2182 *
2183 * Return value:
2184 * none
2185 **/
2186static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2187 struct ipr_hostrcb64_config_element *cfg)
2188{
2189 int i, j;
2190 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2191 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2192 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2193 char buffer[IPR_MAX_RES_PATH_LENGTH];
2194
2195 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2196 return;
2197
2198 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2199 if (path_type_desc[i].type != type)
2200 continue;
2201
2202 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2203 if (path_status_desc[j].status != status)
2204 continue;
2205
2206 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2207 path_status_desc[j].desc, path_type_desc[i].desc,
b3b3b407
BK		 2208 ipr_format_res_path(hostrcb->ioa_cfg,
2209 cfg->res_path, buffer, sizeof(buffer)),
2210 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2211 be32_to_cpu(cfg->wwid[0]),
2212 be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2213 return;
2214 }
2215 }
2216 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2217 "WWN=%08X%08X\n", cfg->type_status,
b3b3b407
BK		 2218 ipr_format_res_path(hostrcb->ioa_cfg,
2219 cfg->res_path, buffer, sizeof(buffer)),
2220 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2221 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
4565e370
WB		 2222}
2223
49dc6a18
BK		 2224/**
2225 * ipr_log_fabric_error - Log a fabric error.
2226 * @ioa_cfg: ioa config struct
2227 * @hostrcb: hostrcb struct
2228 *
2229 * Return value:
2230 * none
2231 **/
2232static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2233 struct ipr_hostrcb *hostrcb)
2234{
2235 struct ipr_hostrcb_type_20_error *error;
2236 struct ipr_hostrcb_fabric_desc *fabric;
2237 struct ipr_hostrcb_config_element *cfg;
2238 int i, add_len;
2239
2240 error = &hostrcb->hcam.u.error.u.type_20_error;
2241 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2242 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2243
2244 add_len = be32_to_cpu(hostrcb->hcam.length) -
2245 (offsetof(struct ipr_hostrcb_error, u) +
2246 offsetof(struct ipr_hostrcb_type_20_error, desc));
2247
2248 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2249 ipr_log_fabric_path(hostrcb, fabric);
2250 for_each_fabric_cfg(fabric, cfg)
2251 ipr_log_path_elem(hostrcb, cfg);
2252
2253 add_len -= be16_to_cpu(fabric->length);
2254 fabric = (struct ipr_hostrcb_fabric_desc *)
2255 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2256 }
2257
ac719aba 2258 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
49dc6a18
BK		 2259}
2260
4565e370
WB		 2261/**
2262 * ipr_log_sis64_array_error - Log a sis64 array error.
2263 * @ioa_cfg: ioa config struct
2264 * @hostrcb: hostrcb struct
2265 *
2266 * Return value:
2267 * none
2268 **/
2269static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2270 struct ipr_hostrcb *hostrcb)
2271{
2272 int i, num_entries;
2273 struct ipr_hostrcb_type_24_error *error;
2274 struct ipr_hostrcb64_array_data_entry *array_entry;
2275 char buffer[IPR_MAX_RES_PATH_LENGTH];
2276 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2277
2278 error = &hostrcb->hcam.u.error64.u.type_24_error;
2279
2280 ipr_err_separator;
2281
2282 ipr_err("RAID %s Array Configuration: %s\n",
2283 error->protection_level,
b3b3b407
BK		 2284 ipr_format_res_path(ioa_cfg, error->last_res_path,
2285 buffer, sizeof(buffer)));
4565e370
WB		 2286
2287 ipr_err_separator;
2288
2289 array_entry = error->array_member;
7262026f
WB		 2290 num_entries = min_t(u32, error->num_entries,
2291 ARRAY_SIZE(error->array_member));
4565e370
WB		 2292
2293 for (i = 0; i < num_entries; i++, array_entry++) {
2294
2295 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2296 continue;
2297
2298 if (error->exposed_mode_adn == i)
2299 ipr_err("Exposed Array Member %d:\n", i);
2300 else
2301 ipr_err("Array Member %d:\n", i);
2302
2303 ipr_err("Array Member %d:\n", i);
2304 ipr_log_ext_vpd(&array_entry->vpd);
7262026f 2305 ipr_err("Current Location: %s\n",
b3b3b407
BK		 2306 ipr_format_res_path(ioa_cfg, array_entry->res_path,
2307 buffer, sizeof(buffer)));
7262026f 2308 ipr_err("Expected Location: %s\n",
b3b3b407
BK		 2309 ipr_format_res_path(ioa_cfg,
2310 array_entry->expected_res_path,
2311 buffer, sizeof(buffer)));
4565e370
WB		 2312
2313 ipr_err_separator;
2314 }
2315}
2316
2317/**
2318 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2319 * @ioa_cfg: ioa config struct
2320 * @hostrcb: hostrcb struct
2321 *
2322 * Return value:
2323 * none
2324 **/
2325static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2326 struct ipr_hostrcb *hostrcb)
2327{
2328 struct ipr_hostrcb_type_30_error *error;
2329 struct ipr_hostrcb64_fabric_desc *fabric;
2330 struct ipr_hostrcb64_config_element *cfg;
2331 int i, add_len;
2332
2333 error = &hostrcb->hcam.u.error64.u.type_30_error;
2334
2335 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2336 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2337
2338 add_len = be32_to_cpu(hostrcb->hcam.length) -
2339 (offsetof(struct ipr_hostrcb64_error, u) +
2340 offsetof(struct ipr_hostrcb_type_30_error, desc));
2341
2342 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2343 ipr_log64_fabric_path(hostrcb, fabric);
2344 for_each_fabric_cfg(fabric, cfg)
2345 ipr_log64_path_elem(hostrcb, cfg);
2346
2347 add_len -= be16_to_cpu(fabric->length);
2348 fabric = (struct ipr_hostrcb64_fabric_desc *)
2349 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2350 }
2351
2352 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2353}
2354
b0df54bb
BK		 2355/**
2356 * ipr_log_generic_error - Log an adapter error.
2357 * @ioa_cfg: ioa config struct
2358 * @hostrcb: hostrcb struct
2359 *
2360 * Return value:
2361 * none
2362 **/
2363static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2364 struct ipr_hostrcb *hostrcb)
2365{
ac719aba 2366 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
b0df54bb
BK		 2367 be32_to_cpu(hostrcb->hcam.length));
2368}
2369
169b9ec8
WX		 2370/**
2371 * ipr_log_sis64_device_error - Log a cache error.
2372 * @ioa_cfg: ioa config struct
2373 * @hostrcb: hostrcb struct
2374 *
2375 * Return value:
2376 * none
2377 **/
2378static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg,
2379 struct ipr_hostrcb *hostrcb)
2380{
2381 struct ipr_hostrcb_type_21_error *error;
2382 char buffer[IPR_MAX_RES_PATH_LENGTH];
2383
2384 error = &hostrcb->hcam.u.error64.u.type_21_error;
2385
2386 ipr_err("-----Failing Device Information-----\n");
2387 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n",
2388 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]),
2389 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3]));
2390 ipr_err("Device Resource Path: %s\n",
2391 __ipr_format_res_path(error->res_path,
2392 buffer, sizeof(buffer)));
2393 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0';
2394 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0';
2395 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc);
2396 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc);
2397 ipr_err("SCSI Sense Data:\n");
2398 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data));
2399 ipr_err("SCSI Command Descriptor Block: \n");
2400 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb));
2401
2402 ipr_err("Additional IOA Data:\n");
2403 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error));
2404}
2405
1da177e4
LT		 2406/**
2407 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2408 * @ioasc: IOASC
2409 *
2410 * This function will return the index of into the ipr_error_table
2411 * for the specified IOASC. If the IOASC is not in the table,
2412 * 0 will be returned, which points to the entry used for unknown errors.
2413 *
2414 * Return value:
2415 * index into the ipr_error_table
2416 **/
2417static u32 ipr_get_error(u32 ioasc)
2418{
2419 int i;
2420
2421 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
35a39691 2422 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1da177e4
LT		 2423 return i;
2424
2425 return 0;
2426}
2427
2428/**
2429 * ipr_handle_log_data - Log an adapter error.
2430 * @ioa_cfg: ioa config struct
2431 * @hostrcb: hostrcb struct
2432 *
2433 * This function logs an adapter error to the system.
2434 *
2435 * Return value:
2436 * none
2437 **/
2438static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2439 struct ipr_hostrcb *hostrcb)
2440{
2441 u32 ioasc;
2442 int error_index;
2443
2444 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2445 return;
2446
2447 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2448 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2449
4565e370
WB		 2450 if (ioa_cfg->sis64)
2451 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2452 else
2453 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2454
4565e370
WB		 2455 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2456 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2457 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2458 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2459 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2460 }
2461
2462 error_index = ipr_get_error(ioasc);
2463
2464 if (!ipr_error_table[error_index].log_hcam)
2465 return;
2466
49dc6a18 2467 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2468
2469 /* Set indication we have logged an error */
2470 ioa_cfg->errors_logged++;
2471
933916f3 2472 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2473 return;
cf852037
BK		 2474 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2475 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2476
2477 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2478 case IPR_HOST_RCB_OVERLAY_ID_2:
2479 ipr_log_cache_error(ioa_cfg, hostrcb);
2480 break;
2481 case IPR_HOST_RCB_OVERLAY_ID_3:
2482 ipr_log_config_error(ioa_cfg, hostrcb);
2483 break;
2484 case IPR_HOST_RCB_OVERLAY_ID_4:
2485 case IPR_HOST_RCB_OVERLAY_ID_6:
2486 ipr_log_array_error(ioa_cfg, hostrcb);
2487 break;
b0df54bb
BK		 2488 case IPR_HOST_RCB_OVERLAY_ID_7:
2489 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2490 break;
ee0f05b8
BK		 2491 case IPR_HOST_RCB_OVERLAY_ID_12:
2492 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2493 break;
2494 case IPR_HOST_RCB_OVERLAY_ID_13:
2495 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2496 break;
2497 case IPR_HOST_RCB_OVERLAY_ID_14:
2498 case IPR_HOST_RCB_OVERLAY_ID_16:
2499 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2500 break;
2501 case IPR_HOST_RCB_OVERLAY_ID_17:
2502 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2503 break;
49dc6a18
BK		 2504 case IPR_HOST_RCB_OVERLAY_ID_20:
2505 ipr_log_fabric_error(ioa_cfg, hostrcb);
2506 break;
169b9ec8
WX		 2507 case IPR_HOST_RCB_OVERLAY_ID_21:
2508 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2509 break;
4565e370
WB		 2510 case IPR_HOST_RCB_OVERLAY_ID_23:
2511 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2512 break;
2513 case IPR_HOST_RCB_OVERLAY_ID_24:
2514 case IPR_HOST_RCB_OVERLAY_ID_26:
2515 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2516 break;
2517 case IPR_HOST_RCB_OVERLAY_ID_30:
2518 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2519 break;
cf852037 2520 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2521 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2522 default:
a9cfca96 2523 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2524 break;
2525 }
2526}
2527
2528/**
2529 * ipr_process_error - Op done function for an adapter error log.
2530 * @ipr_cmd: ipr command struct
2531 *
2532 * This function is the op done function for an error log host
2533 * controlled async from the adapter. It will log the error and
2534 * send the HCAM back to the adapter.
2535 *
2536 * Return value:
2537 * none
2538 **/
2539static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2540{
2541 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2542 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2543 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2544 u32 fd_ioasc;
2545
2546 if (ioa_cfg->sis64)
2547 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2548 else
2549 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2550
2551 list_del(&hostrcb->queue);
05a6538a 2552 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2553
2554 if (!ioasc) {
2555 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2556 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2557 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2558 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2559 dev_err(&ioa_cfg->pdev->dev,
2560 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2561 }
2562
2563 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2564}
2565
2566/**
2567 * ipr_timeout - An internally generated op has timed out.
2568 * @ipr_cmd: ipr command struct
2569 *
2570 * This function blocks host requests and initiates an
2571 * adapter reset.
2572 *
2573 * Return value:
2574 * none
2575 **/
2576static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2577{
2578 unsigned long lock_flags = 0;
2579 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2580
2581 ENTER;
2582 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2583
2584 ioa_cfg->errors_logged++;
2585 dev_err(&ioa_cfg->pdev->dev,
2586 "Adapter being reset due to command timeout.\n");
2587
2588 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2589 ioa_cfg->sdt_state = GET_DUMP;
2590
2591 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2592 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2593
2594 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2595 LEAVE;
2596}
2597
2598/**
2599 * ipr_oper_timeout - Adapter timed out transitioning to operational
2600 * @ipr_cmd: ipr command struct
2601 *
2602 * This function blocks host requests and initiates an
2603 * adapter reset.
2604 *
2605 * Return value:
2606 * none
2607 **/
2608static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2609{
2610 unsigned long lock_flags = 0;
2611 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2612
2613 ENTER;
2614 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2615
2616 ioa_cfg->errors_logged++;
2617 dev_err(&ioa_cfg->pdev->dev,
2618 "Adapter timed out transitioning to operational.\n");
2619
2620 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2621 ioa_cfg->sdt_state = GET_DUMP;
2622
2623 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2624 if (ipr_fastfail)
2625 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2626 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2627 }
2628
2629 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2630 LEAVE;
2631}
2632
1da177e4
LT		 2633/**
2634 * ipr_find_ses_entry - Find matching SES in SES table
2635 * @res: resource entry struct of SES
2636 *
2637 * Return value:
2638 * pointer to SES table entry / NULL on failure
2639 **/
2640static const struct ipr_ses_table_entry *
2641ipr_find_ses_entry(struct ipr_resource_entry *res)
2642{
2643 int i, j, matches;
3e7ebdfa 2644 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2645 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2646
2647 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2648 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2649 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2650 vpids = &res->std_inq_data.vpids;
2651 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2652 matches++;
2653 else
2654 break;
2655 } else
2656 matches++;
2657 }
2658
2659 if (matches == IPR_PROD_ID_LEN)
2660 return ste;
2661 }
2662
2663 return NULL;
2664}
2665
2666/**
2667 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2668 * @ioa_cfg: ioa config struct
2669 * @bus: SCSI bus
2670 * @bus_width: bus width
2671 *
2672 * Return value:
2673 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2674 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2675 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2676 * max 160MHz = max 320MB/sec).
2677 **/
2678static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2679{
2680 struct ipr_resource_entry *res;
2681 const struct ipr_ses_table_entry *ste;
2682 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2683
2684 /* Loop through each config table entry in the config table buffer */
2685 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2686 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2687 continue;
2688
3e7ebdfa 2689 if (bus != res->bus)
1da177e4
LT		 2690 continue;
2691
2692 if (!(ste = ipr_find_ses_entry(res)))
2693 continue;
2694
2695 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2696 }
2697
2698 return max_xfer_rate;
2699}
2700
2701/**
2702 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2703 * @ioa_cfg: ioa config struct
2704 * @max_delay: max delay in micro-seconds to wait
2705 *
2706 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2707 *
2708 * Return value:
2709 * 0 on success / other on failure
2710 **/
2711static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2712{
2713 volatile u32 pcii_reg;
2714 int delay = 1;
2715
2716 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2717 while (delay < max_delay) {
2718 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2719
2720 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2721 return 0;
2722
2723 /* udelay cannot be used if delay is more than a few milliseconds */
2724 if ((delay / 1000) > MAX_UDELAY_MS)
2725 mdelay(delay / 1000);
2726 else
2727 udelay(delay);
2728
2729 delay += delay;
2730 }
2731 return -EIO;
2732}
2733
dcbad00e
WB		 2734/**
2735 * ipr_get_sis64_dump_data_section - Dump IOA memory
2736 * @ioa_cfg: ioa config struct
2737 * @start_addr: adapter address to dump
2738 * @dest: destination kernel buffer
2739 * @length_in_words: length to dump in 4 byte words
2740 *
2741 * Return value:
2742 * 0 on success
2743 **/
2744static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2745 u32 start_addr,
2746 __be32 *dest, u32 length_in_words)
2747{
2748 int i;
2749
2750 for (i = 0; i < length_in_words; i++) {
2751 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2752 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2753 dest++;
2754 }
2755
2756 return 0;
2757}
2758
1da177e4
LT		 2759/**
2760 * ipr_get_ldump_data_section - Dump IOA memory
2761 * @ioa_cfg: ioa config struct
2762 * @start_addr: adapter address to dump
2763 * @dest: destination kernel buffer
2764 * @length_in_words: length to dump in 4 byte words
2765 *
2766 * Return value:
2767 * 0 on success / -EIO on failure
2768 **/
2769static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2770 u32 start_addr,
2771 __be32 *dest, u32 length_in_words)
2772{
2773 volatile u32 temp_pcii_reg;
2774 int i, delay = 0;
2775
dcbad00e
WB		 2776 if (ioa_cfg->sis64)
2777 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2778 dest, length_in_words);
2779
1da177e4
LT		 2780 /* Write IOA interrupt reg starting LDUMP state */
2781 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2782 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2783
2784 /* Wait for IO debug acknowledge */
2785 if (ipr_wait_iodbg_ack(ioa_cfg,
2786 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2787 dev_err(&ioa_cfg->pdev->dev,
2788 "IOA dump long data transfer timeout\n");
2789 return -EIO;
2790 }
2791
2792 /* Signal LDUMP interlocked - clear IO debug ack */
2793 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2794 ioa_cfg->regs.clr_interrupt_reg);
2795
2796 /* Write Mailbox with starting address */
2797 writel(start_addr, ioa_cfg->ioa_mailbox);
2798
2799 /* Signal address valid - clear IOA Reset alert */
2800 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2801 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2802
2803 for (i = 0; i < length_in_words; i++) {
2804 /* Wait for IO debug acknowledge */
2805 if (ipr_wait_iodbg_ack(ioa_cfg,
2806 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2807 dev_err(&ioa_cfg->pdev->dev,
2808 "IOA dump short data transfer timeout\n");
2809 return -EIO;
2810 }
2811
2812 /* Read data from mailbox and increment destination pointer */
2813 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2814 dest++;
2815
2816 /* For all but the last word of data, signal data received */
2817 if (i < (length_in_words - 1)) {
2818 /* Signal dump data received - Clear IO debug Ack */
2819 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2820 ioa_cfg->regs.clr_interrupt_reg);
2821 }
2822 }
2823
2824 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2825 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2826 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2827
2828 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2829 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2830
2831 /* Signal dump data received - Clear IO debug Ack */
2832 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2833 ioa_cfg->regs.clr_interrupt_reg);
2834
2835 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2836 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2837 temp_pcii_reg =
214777ba 2838 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2839
2840 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2841 return 0;
2842
2843 udelay(10);
2844 delay += 10;
2845 }
2846
2847 return 0;
2848}
2849
2850#ifdef CONFIG_SCSI_IPR_DUMP
2851/**
2852 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2853 * @ioa_cfg: ioa config struct
2854 * @pci_address: adapter address
2855 * @length: length of data to copy
2856 *
2857 * Copy data from PCI adapter to kernel buffer.
2858 * Note: length MUST be a 4 byte multiple
2859 * Return value:
2860 * 0 on success / other on failure
2861 **/
2862static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2863 unsigned long pci_address, u32 length)
2864{
2865 int bytes_copied = 0;
4d4dd706 2866 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2867 __be32 *page;
2868 unsigned long lock_flags = 0;
2869 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2870
4d4dd706
KSS		 2871 if (ioa_cfg->sis64)
2872 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2873 else
2874 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2875
1da177e4 2876 while (bytes_copied < length &&
4d4dd706 2877 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2878 if (ioa_dump->page_offset >= PAGE_SIZE ||
2879 ioa_dump->page_offset == 0) {
2880 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2881
2882 if (!page) {
2883 ipr_trace;
2884 return bytes_copied;
2885 }
2886
2887 ioa_dump->page_offset = 0;
2888 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2889 ioa_dump->next_page_index++;
2890 } else
2891 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2892
2893 rem_len = length - bytes_copied;
2894 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2895 cur_len = min(rem_len, rem_page_len);
2896
2897 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2898 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2899 rc = -EIO;
2900 } else {
2901 rc = ipr_get_ldump_data_section(ioa_cfg,
2902 pci_address + bytes_copied,
2903 &page[ioa_dump->page_offset / 4],
2904 (cur_len / sizeof(u32)));
2905 }
2906 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2907
2908 if (!rc) {
2909 ioa_dump->page_offset += cur_len;
2910 bytes_copied += cur_len;
2911 } else {
2912 ipr_trace;
2913 break;
2914 }
2915 schedule();
2916 }
2917
2918 return bytes_copied;
2919}
2920
2921/**
2922 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2923 * @hdr: dump entry header struct
2924 *
2925 * Return value:
2926 * nothing
2927 **/
2928static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2929{
2930 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2931 hdr->num_elems = 1;
2932 hdr->offset = sizeof(*hdr);
2933 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2934}
2935
2936/**
2937 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2938 * @ioa_cfg: ioa config struct
2939 * @driver_dump: driver dump struct
2940 *
2941 * Return value:
2942 * nothing
2943 **/
2944static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2945 struct ipr_driver_dump *driver_dump)
2946{
2947 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2948
2949 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2950 driver_dump->ioa_type_entry.hdr.len =
2951 sizeof(struct ipr_dump_ioa_type_entry) -
2952 sizeof(struct ipr_dump_entry_header);
2953 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2954 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2955 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2956 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2957 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2958 ucode_vpd->minor_release[1];
2959 driver_dump->hdr.num_entries++;
2960}
2961
2962/**
2963 * ipr_dump_version_data - Fill in the driver version in the dump.
2964 * @ioa_cfg: ioa config struct
2965 * @driver_dump: driver dump struct
2966 *
2967 * Return value:
2968 * nothing
2969 **/
2970static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2971 struct ipr_driver_dump *driver_dump)
2972{
2973 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2974 driver_dump->version_entry.hdr.len =
2975 sizeof(struct ipr_dump_version_entry) -
2976 sizeof(struct ipr_dump_entry_header);
2977 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2978 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2979 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2980 driver_dump->hdr.num_entries++;
2981}
2982
2983/**
2984 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2985 * @ioa_cfg: ioa config struct
2986 * @driver_dump: driver dump struct
2987 *
2988 * Return value:
2989 * nothing
2990 **/
2991static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2992 struct ipr_driver_dump *driver_dump)
2993{
2994 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2995 driver_dump->trace_entry.hdr.len =
2996 sizeof(struct ipr_dump_trace_entry) -
2997 sizeof(struct ipr_dump_entry_header);
2998 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2999 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3000 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3001 driver_dump->hdr.num_entries++;
3002}
3003
3004/**
3005 * ipr_dump_location_data - Fill in the IOA location in the dump.
3006 * @ioa_cfg: ioa config struct
3007 * @driver_dump: driver dump struct
3008 *
3009 * Return value:
3010 * nothing
3011 **/
3012static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3013 struct ipr_driver_dump *driver_dump)
3014{
3015 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3016 driver_dump->location_entry.hdr.len =
3017 sizeof(struct ipr_dump_location_entry) -
3018 sizeof(struct ipr_dump_entry_header);
3019 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3020 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3021 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3022 driver_dump->hdr.num_entries++;
3023}
3024
3025/**
3026 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3027 * @ioa_cfg: ioa config struct
3028 * @dump: dump struct
3029 *
3030 * Return value:
3031 * nothing
3032 **/
3033static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3034{
3035 unsigned long start_addr, sdt_word;
3036 unsigned long lock_flags = 0;
3037 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3038 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3039 u32 num_entries, max_num_entries, start_off, end_off;
3040 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3041 struct ipr_sdt *sdt;
dcbad00e 3042 int valid = 1;
1da177e4
LT		 3043 int i;
3044
3045 ENTER;
3046
3047 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3048
41e9a696 3049 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3051 return;
3052 }
3053
110def85
WB		 3054 if (ioa_cfg->sis64) {
3055 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3056 ssleep(IPR_DUMP_DELAY_SECONDS);
3057 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3058 }
3059
1da177e4
LT		 3060 start_addr = readl(ioa_cfg->ioa_mailbox);
3061
dcbad00e 3062 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3063 dev_err(&ioa_cfg->pdev->dev,
3064 "Invalid dump table format: %lx\n", start_addr);
3065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3066 return;
3067 }
3068
3069 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3070
3071 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3072
3073 /* Initialize the overall dump header */
3074 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3075 driver_dump->hdr.num_entries = 1;
3076 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3077 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3078 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3079 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3080
3081 ipr_dump_version_data(ioa_cfg, driver_dump);
3082 ipr_dump_location_data(ioa_cfg, driver_dump);
3083 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3084 ipr_dump_trace_data(ioa_cfg, driver_dump);
3085
3086 /* Update dump_header */
3087 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3088
3089 /* IOA Dump entry */
3090 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3091 ioa_dump->hdr.len = 0;
3092 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3093 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3094
3095 /* First entries in sdt are actually a list of dump addresses and
3096 lengths to gather the real dump data. sdt represents the pointer
3097 to the ioa generated dump table. Dump data will be extracted based
3098 on entries in this table */
3099 sdt = &ioa_dump->sdt;
3100
4d4dd706
KSS		 3101 if (ioa_cfg->sis64) {
3102 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3103 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3104 } else {
3105 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3106 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3107 }
3108
3109 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3110 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3111 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3112 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3113
3114 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3115 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3116 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3117 dev_err(&ioa_cfg->pdev->dev,
3118 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3119 rc, be32_to_cpu(sdt->hdr.state));
3120 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3121 ioa_cfg->sdt_state = DUMP_OBTAINED;
3122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3123 return;
3124 }
3125
3126 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3127
4d4dd706
KSS		 3128 if (num_entries > max_num_entries)
3129 num_entries = max_num_entries;
3130
3131 /* Update dump length to the actual data to be copied */
3132 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3133 if (ioa_cfg->sis64)
3134 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3135 else
3136 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3137
3138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3139
3140 for (i = 0; i < num_entries; i++) {
4d4dd706 3141 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3142 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3143 break;
3144 }
3145
3146 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3147 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3148 if (ioa_cfg->sis64)
3149 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3150 else {
3151 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3152 end_off = be32_to_cpu(sdt->entry[i].end_token);
3153
3154 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3155 bytes_to_copy = end_off - start_off;
3156 else
3157 valid = 0;
3158 }
3159 if (valid) {
4d4dd706 3160 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3161 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3162 continue;
3163 }
3164
3165 /* Copy data from adapter to driver buffers */
3166 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3167 bytes_to_copy);
3168
3169 ioa_dump->hdr.len += bytes_copied;
3170
3171 if (bytes_copied != bytes_to_copy) {
3172 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3173 break;
3174 }
3175 }
3176 }
3177 }
3178
3179 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3180
3181 /* Update dump_header */
3182 driver_dump->hdr.len += ioa_dump->hdr.len;
3183 wmb();
3184 ioa_cfg->sdt_state = DUMP_OBTAINED;
3185 LEAVE;
3186}
3187
3188#else
203fa3fe 3189#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3190#endif
3191
3192/**
3193 * ipr_release_dump - Free adapter dump memory
3194 * @kref: kref struct
3195 *
3196 * Return value:
3197 * nothing
3198 **/
3199static void ipr_release_dump(struct kref *kref)
3200{
203fa3fe 3201 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3202 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3203 unsigned long lock_flags = 0;
3204 int i;
3205
3206 ENTER;
3207 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3208 ioa_cfg->dump = NULL;
3209 ioa_cfg->sdt_state = INACTIVE;
3210 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3211
3212 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3213 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3214
4d4dd706 3215 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3216 kfree(dump);
3217 LEAVE;
3218}
3219
3220/**
3221 * ipr_worker_thread - Worker thread
c4028958 3222 * @work: ioa config struct
1da177e4
LT		 3223 *
3224 * Called at task level from a work thread. This function takes care
3225 * of adding and removing device from the mid-layer as configuration
3226 * changes are detected by the adapter.
3227 *
3228 * Return value:
3229 * nothing
3230 **/
c4028958 3231static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3232{
3233 unsigned long lock_flags;
3234 struct ipr_resource_entry *res;
3235 struct scsi_device *sdev;
3236 struct ipr_dump *dump;
c4028958
DH		 3237 struct ipr_ioa_cfg *ioa_cfg =
3238 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3239 u8 bus, target, lun;
3240 int did_work;
3241
3242 ENTER;
3243 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3244
41e9a696 3245 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3246 dump = ioa_cfg->dump;
3247 if (!dump) {
3248 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3249 return;
3250 }
3251 kref_get(&dump->kref);
3252 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3253 ipr_get_ioa_dump(ioa_cfg, dump);
3254 kref_put(&dump->kref, ipr_release_dump);
3255
3256 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3257 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3258 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3259 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3260 return;
3261 }
3262
3263restart:
3264 do {
3265 did_work = 0;
56d6aa33 3266 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
3267 !ioa_cfg->allow_ml_add_del) {
1da177e4
LT		 3268 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3269 return;
3270 }
3271
3272 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3273 if (res->del_from_ml && res->sdev) {
3274 did_work = 1;
3275 sdev = res->sdev;
3276 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3277 if (!res->add_to_ml)
3278 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3279 else
3280 res->del_from_ml = 0;
1da177e4
LT		 3281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3282 scsi_remove_device(sdev);
3283 scsi_device_put(sdev);
3284 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3285 }
3286 break;
3287 }
3288 }
203fa3fe 3289 } while (did_work);
1da177e4
LT		 3290
3291 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3292 if (res->add_to_ml) {
3e7ebdfa
WB		 3293 bus = res->bus;
3294 target = res->target;
3295 lun = res->lun;
1121b794 3296 res->add_to_ml = 0;
1da177e4
LT		 3297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3298 scsi_add_device(ioa_cfg->host, bus, target, lun);
3299 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3300 goto restart;
3301 }
3302 }
3303
3304 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3305 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3306 LEAVE;
3307}
3308
3309#ifdef CONFIG_SCSI_IPR_TRACE
3310/**
3311 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3312 * @filp: open sysfs file
1da177e4 3313 * @kobj: kobject struct
91a69029 3314 * @bin_attr: bin_attribute struct
1da177e4
LT		 3315 * @buf: buffer
3316 * @off: offset
3317 * @count: buffer size
3318 *
3319 * Return value:
3320 * number of bytes printed to buffer
3321 **/
2c3c8bea 3322static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3323 struct bin_attribute *bin_attr,
3324 char *buf, loff_t off, size_t count)
1da177e4 3325{
ee959b00
TJ		 3326 struct device *dev = container_of(kobj, struct device, kobj);
3327 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3328 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3329 unsigned long lock_flags = 0;
d777aaf3 3330 ssize_t ret;
1da177e4
LT		 3331
3332 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3333 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3334 IPR_TRACE_SIZE);
1da177e4 3335 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3336
3337 return ret;
1da177e4
LT		 3338}
3339
3340static struct bin_attribute ipr_trace_attr = {
3341 .attr = {
3342 .name = "trace",
3343 .mode = S_IRUGO,
3344 },
3345 .size = 0,
3346 .read = ipr_read_trace,
3347};
3348#endif
3349
3350/**
3351 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3352 * @dev: class device struct
3353 * @buf: buffer
1da177e4
LT		 3354 *
3355 * Return value:
3356 * number of bytes printed to buffer
3357 **/
ee959b00
TJ		 3358static ssize_t ipr_show_fw_version(struct device *dev,
3359 struct device_attribute *attr, char *buf)
1da177e4 3360{
ee959b00 3361 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3362 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3363 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3364 unsigned long lock_flags = 0;
3365 int len;
3366
3367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3368 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3369 ucode_vpd->major_release, ucode_vpd->card_type,
3370 ucode_vpd->minor_release[0],
3371 ucode_vpd->minor_release[1]);
3372 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3373 return len;
3374}
3375
ee959b00 3376static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3377 .attr = {
3378 .name = "fw_version",
3379 .mode = S_IRUGO,
3380 },
3381 .show = ipr_show_fw_version,
3382};
3383
3384/**
3385 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3386 * @dev: class device struct
3387 * @buf: buffer
1da177e4
LT		 3388 *
3389 * Return value:
3390 * number of bytes printed to buffer
3391 **/
ee959b00
TJ		 3392static ssize_t ipr_show_log_level(struct device *dev,
3393 struct device_attribute *attr, char *buf)
1da177e4 3394{
ee959b00 3395 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3396 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3397 unsigned long lock_flags = 0;
3398 int len;
3399
3400 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3401 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3402 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3403 return len;
3404}
3405
3406/**
3407 * ipr_store_log_level - Change the adapter's error logging level
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 3414static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3415 struct device_attribute *attr,
1da177e4
LT		 3416 const char *buf, size_t count)
3417{
ee959b00 3418 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3419 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3420 unsigned long lock_flags = 0;
3421
3422 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3423 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3424 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3425 return strlen(buf);
3426}
3427
ee959b00 3428static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3429 .attr = {
3430 .name = "log_level",
3431 .mode = S_IRUGO | S_IWUSR,
3432 },
3433 .show = ipr_show_log_level,
3434 .store = ipr_store_log_level
3435};
3436
3437/**
3438 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3439 * @dev: device struct
3440 * @buf: buffer
3441 * @count: buffer size
1da177e4
LT		 3442 *
3443 * This function will reset the adapter and wait a reasonable
3444 * amount of time for any errors that the adapter might log.
3445 *
3446 * Return value:
3447 * count on success / other on failure
3448 **/
ee959b00
TJ		 3449static ssize_t ipr_store_diagnostics(struct device *dev,
3450 struct device_attribute *attr,
1da177e4
LT		 3451 const char *buf, size_t count)
3452{
ee959b00 3453 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3454 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3455 unsigned long lock_flags = 0;
3456 int rc = count;
3457
3458 if (!capable(CAP_SYS_ADMIN))
3459 return -EACCES;
3460
1da177e4 3461 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3462 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3463 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3464 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3465 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3466 }
3467
1da177e4
LT		 3468 ioa_cfg->errors_logged = 0;
3469 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3470
3471 if (ioa_cfg->in_reset_reload) {
3472 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3473 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3474
3475 /* Wait for a second for any errors to be logged */
3476 msleep(1000);
3477 } else {
3478 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3479 return -EIO;
3480 }
3481
3482 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3483 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3484 rc = -EIO;
3485 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3486
3487 return rc;
3488}
3489
ee959b00 3490static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3491 .attr = {
3492 .name = "run_diagnostics",
3493 .mode = S_IWUSR,
3494 },
3495 .store = ipr_store_diagnostics
3496};
3497
f37eb54b
BK		 3498/**
3499 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3500 * @class_dev: device struct
3501 * @buf: buffer
f37eb54b
BK		 3502 *
3503 * Return value:
3504 * number of bytes printed to buffer
3505 **/
ee959b00
TJ		 3506static ssize_t ipr_show_adapter_state(struct device *dev,
3507 struct device_attribute *attr, char *buf)
f37eb54b 3508{
ee959b00 3509 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3510 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3511 unsigned long lock_flags = 0;
3512 int len;
3513
3514 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3515 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b
BK		 3516 len = snprintf(buf, PAGE_SIZE, "offline\n");
3517 else
3518 len = snprintf(buf, PAGE_SIZE, "online\n");
3519 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3520 return len;
3521}
3522
3523/**
3524 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3525 * @dev: device struct
3526 * @buf: buffer
3527 * @count: buffer size
f37eb54b
BK		 3528 *
3529 * This function will change the adapter's state.
3530 *
3531 * Return value:
3532 * count on success / other on failure
3533 **/
ee959b00
TJ		 3534static ssize_t ipr_store_adapter_state(struct device *dev,
3535 struct device_attribute *attr,
f37eb54b
BK		 3536 const char *buf, size_t count)
3537{
ee959b00 3538 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3539 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3540 unsigned long lock_flags;
56d6aa33 3541 int result = count, i;
f37eb54b
BK		 3542
3543 if (!capable(CAP_SYS_ADMIN))
3544 return -EACCES;
3545
3546 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3547 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3548 !strncmp(buf, "online", 6)) {
3549 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3550 spin_lock(&ioa_cfg->hrrq[i]._lock);
3551 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3552 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3553 }
3554 wmb();
f37eb54b
BK		 3555 ioa_cfg->reset_retries = 0;
3556 ioa_cfg->in_ioa_bringdown = 0;
3557 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3558 }
3559 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3560 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3561
3562 return result;
3563}
3564
ee959b00 3565static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3566 .attr = {
49dd0961 3567 .name = "online_state",
f37eb54b
BK		 3568 .mode = S_IRUGO | S_IWUSR,
3569 },
3570 .show = ipr_show_adapter_state,
3571 .store = ipr_store_adapter_state
3572};
3573
1da177e4
LT		 3574/**
3575 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3576 * @dev: device struct
3577 * @buf: buffer
3578 * @count: buffer size
1da177e4
LT		 3579 *
3580 * This function will reset the adapter.
3581 *
3582 * Return value:
3583 * count on success / other on failure
3584 **/
ee959b00
TJ		 3585static ssize_t ipr_store_reset_adapter(struct device *dev,
3586 struct device_attribute *attr,
1da177e4
LT		 3587 const char *buf, size_t count)
3588{
ee959b00 3589 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3590 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3591 unsigned long lock_flags;
3592 int result = count;
3593
3594 if (!capable(CAP_SYS_ADMIN))
3595 return -EACCES;
3596
3597 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3598 if (!ioa_cfg->in_reset_reload)
3599 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3600 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3601 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3602
3603 return result;
3604}
3605
ee959b00 3606static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3607 .attr = {
3608 .name = "reset_host",
3609 .mode = S_IWUSR,
3610 },
3611 .store = ipr_store_reset_adapter
3612};
3613
b53d124a 3614static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3615 /**
3616 * ipr_show_iopoll_weight - Show ipr polling mode
3617 * @dev: class device struct
3618 * @buf: buffer
3619 *
3620 * Return value:
3621 * number of bytes printed to buffer
3622 **/
3623static ssize_t ipr_show_iopoll_weight(struct device *dev,
3624 struct device_attribute *attr, char *buf)
3625{
3626 struct Scsi_Host *shost = class_to_shost(dev);
3627 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3628 unsigned long lock_flags = 0;
3629 int len;
3630
3631 spin_lock_irqsave(shost->host_lock, lock_flags);
3632 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3633 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3634
3635 return len;
3636}
3637
3638/**
3639 * ipr_store_iopoll_weight - Change the adapter's polling mode
3640 * @dev: class device struct
3641 * @buf: buffer
3642 *
3643 * Return value:
3644 * number of bytes printed to buffer
3645 **/
3646static ssize_t ipr_store_iopoll_weight(struct device *dev,
3647 struct device_attribute *attr,
3648 const char *buf, size_t count)
3649{
3650 struct Scsi_Host *shost = class_to_shost(dev);
3651 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3652 unsigned long user_iopoll_weight;
3653 unsigned long lock_flags = 0;
3654 int i;
3655
3656 if (!ioa_cfg->sis64) {
3657 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3658 return -EINVAL;
3659 }
3660 if (kstrtoul(buf, 10, &user_iopoll_weight))
3661 return -EINVAL;
3662
3663 if (user_iopoll_weight > 256) {
3664 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3665 return -EINVAL;
3666 }
3667
3668 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3669 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3670 return strlen(buf);
3671 }
3672
89f8b33c 3673 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3674 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3675 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3676 }
3677
3678 spin_lock_irqsave(shost->host_lock, lock_flags);
3679 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3680 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3681 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3682 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3683 ioa_cfg->iopoll_weight, ipr_iopoll);
3684 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3685 }
3686 }
3687 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3688
3689 return strlen(buf);
3690}
3691
3692static struct device_attribute ipr_iopoll_weight_attr = {
3693 .attr = {
3694 .name = "iopoll_weight",
3695 .mode = S_IRUGO | S_IWUSR,
3696 },
3697 .show = ipr_show_iopoll_weight,
3698 .store = ipr_store_iopoll_weight
3699};
3700
1da177e4
LT		 3701/**
3702 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3703 * @buf_len: buffer length
3704 *
3705 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3706 * list to use for microcode download
3707 *
3708 * Return value:
3709 * pointer to sglist / NULL on failure
3710 **/
3711static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3712{
3713 int sg_size, order, bsize_elem, num_elem, i, j;
3714 struct ipr_sglist *sglist;
3715 struct scatterlist *scatterlist;
3716 struct page *page;
3717
3718 /* Get the minimum size per scatter/gather element */
3719 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3720
3721 /* Get the actual size per element */
3722 order = get_order(sg_size);
3723
3724 /* Determine the actual number of bytes per element */
3725 bsize_elem = PAGE_SIZE * (1 << order);
3726
3727 /* Determine the actual number of sg entries needed */
3728 if (buf_len % bsize_elem)
3729 num_elem = (buf_len / bsize_elem) + 1;
3730 else
3731 num_elem = buf_len / bsize_elem;
3732
3733 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3734 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3735 (sizeof(struct scatterlist) * (num_elem - 1)),
3736 GFP_KERNEL);
3737
3738 if (sglist == NULL) {
3739 ipr_trace;
3740 return NULL;
3741 }
3742
1da177e4 3743 scatterlist = sglist->scatterlist;
45711f1a 3744 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3745
3746 sglist->order = order;
3747 sglist->num_sg = num_elem;
3748
3749 /* Allocate a bunch of sg elements */
3750 for (i = 0; i < num_elem; i++) {
3751 page = alloc_pages(GFP_KERNEL, order);
3752 if (!page) {
3753 ipr_trace;
3754
3755 /* Free up what we already allocated */
3756 for (j = i - 1; j >= 0; j--)
45711f1a 3757 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3758 kfree(sglist);
3759 return NULL;
3760 }
3761
642f1490 3762 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3763 }
3764
3765 return sglist;
3766}
3767
3768/**
3769 * ipr_free_ucode_buffer - Frees a microcode download buffer
3770 * @p_dnld: scatter/gather list pointer
3771 *
3772 * Free a DMA'able ucode download buffer previously allocated with
3773 * ipr_alloc_ucode_buffer
3774 *
3775 * Return value:
3776 * nothing
3777 **/
3778static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3779{
3780 int i;
3781
3782 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3783 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3784
3785 kfree(sglist);
3786}
3787
3788/**
3789 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3790 * @sglist: scatter/gather list pointer
3791 * @buffer: buffer pointer
3792 * @len: buffer length
3793 *
3794 * Copy a microcode image from a user buffer into a buffer allocated by
3795 * ipr_alloc_ucode_buffer
3796 *
3797 * Return value:
3798 * 0 on success / other on failure
3799 **/
3800static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3801 u8 *buffer, u32 len)
3802{
3803 int bsize_elem, i, result = 0;
3804 struct scatterlist *scatterlist;
3805 void *kaddr;
3806
3807 /* Determine the actual number of bytes per element */
3808 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3809
3810 scatterlist = sglist->scatterlist;
3811
3812 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3813 struct page *page = sg_page(&scatterlist[i]);
3814
3815 kaddr = kmap(page);
1da177e4 3816 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3817 kunmap(page);
1da177e4
LT		 3818
3819 scatterlist[i].length = bsize_elem;
3820
3821 if (result != 0) {
3822 ipr_trace;
3823 return result;
3824 }
3825 }
3826
3827 if (len % bsize_elem) {
45711f1a
JA		 3828 struct page *page = sg_page(&scatterlist[i]);
3829
3830 kaddr = kmap(page);
1da177e4 3831 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3832 kunmap(page);
1da177e4
LT		 3833
3834 scatterlist[i].length = len % bsize_elem;
3835 }
3836
3837 sglist->buffer_len = len;
3838 return result;
3839}
3840
a32c055f
WB		 3841/**
3842 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3843 * @ipr_cmd: ipr command struct
3844 * @sglist: scatter/gather list
3845 *
3846 * Builds a microcode download IOA data list (IOADL).
3847 *
3848 **/
3849static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3850 struct ipr_sglist *sglist)
3851{
3852 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3853 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3854 struct scatterlist *scatterlist = sglist->scatterlist;
3855 int i;
3856
3857 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3858 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3859 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3860
3861 ioarcb->ioadl_len =
3862 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3863 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3864 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3865 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3866 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3867 }
3868
3869 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3870}
3871
1da177e4 3872/**
12baa420 3873 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3874 * @ipr_cmd: ipr command struct
3875 * @sglist: scatter/gather list
1da177e4 3876 *
12baa420 3877 * Builds a microcode download IOA data list (IOADL).
1da177e4 3878 *
1da177e4 3879 **/
12baa420
BK		 3880static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3881 struct ipr_sglist *sglist)
1da177e4 3882{
1da177e4 3883 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3884 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3885 struct scatterlist *scatterlist = sglist->scatterlist;
3886 int i;
3887
12baa420 3888 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3889 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3890 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3891
3892 ioarcb->ioadl_len =
1da177e4
LT		 3893 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3894
3895 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3896 ioadl[i].flags_and_data_len =
3897 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3898 ioadl[i].address =
3899 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3900 }
3901
12baa420
BK		 3902 ioadl[i-1].flags_and_data_len |=
3903 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3904}
3905
3906/**
3907 * ipr_update_ioa_ucode - Update IOA's microcode
3908 * @ioa_cfg: ioa config struct
3909 * @sglist: scatter/gather list
3910 *
3911 * Initiate an adapter reset to update the IOA's microcode
3912 *
3913 * Return value:
3914 * 0 on success / -EIO on failure
3915 **/
3916static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3917 struct ipr_sglist *sglist)
3918{
3919 unsigned long lock_flags;
3920
3921 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3922 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3923 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3924 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3925 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3926 }
12baa420
BK		 3927
3928 if (ioa_cfg->ucode_sglist) {
3929 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3930 dev_err(&ioa_cfg->pdev->dev,
3931 "Microcode download already in progress\n");
3932 return -EIO;
1da177e4 3933 }
12baa420
BK		 3934
3935 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3936 sglist->num_sg, DMA_TO_DEVICE);
3937
3938 if (!sglist->num_dma_sg) {
3939 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3940 dev_err(&ioa_cfg->pdev->dev,
3941 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3942 return -EIO;
3943 }
3944
12baa420
BK		 3945 ioa_cfg->ucode_sglist = sglist;
3946 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3947 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3948 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3949
3950 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3951 ioa_cfg->ucode_sglist = NULL;
3952 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3953 return 0;
3954}
3955
3956/**
3957 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3958 * @class_dev: device struct
3959 * @buf: buffer
3960 * @count: buffer size
1da177e4
LT		 3961 *
3962 * This function will update the firmware on the adapter.
3963 *
3964 * Return value:
3965 * count on success / other on failure
3966 **/
ee959b00
TJ		 3967static ssize_t ipr_store_update_fw(struct device *dev,
3968 struct device_attribute *attr,
3969 const char *buf, size_t count)
1da177e4 3970{
ee959b00 3971 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3972 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3973 struct ipr_ucode_image_header *image_hdr;
3974 const struct firmware *fw_entry;
3975 struct ipr_sglist *sglist;
1da177e4
LT		 3976 char fname[100];
3977 char *src;
3978 int len, result, dnld_size;
3979
3980 if (!capable(CAP_SYS_ADMIN))
3981 return -EACCES;
3982
3983 len = snprintf(fname, 99, "%s", buf);
3984 fname[len-1] = '\0';
3985
203fa3fe 3986 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 3987 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3988 return -EIO;
3989 }
3990
3991 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3992
1da177e4
LT		 3993 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3994 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3995 sglist = ipr_alloc_ucode_buffer(dnld_size);
3996
3997 if (!sglist) {
3998 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3999 release_firmware(fw_entry);
4000 return -ENOMEM;
4001 }
4002
4003 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4004
4005 if (result) {
4006 dev_err(&ioa_cfg->pdev->dev,
4007 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4008 goto out;
1da177e4
LT		 4009 }
4010
14ed9cc7
WB		 4011 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4012
12baa420 4013 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4014
12baa420
BK		 4015 if (!result)
4016 result = count;
4017out:
1da177e4
LT		 4018 ipr_free_ucode_buffer(sglist);
4019 release_firmware(fw_entry);
12baa420 4020 return result;
1da177e4
LT		 4021}
4022
ee959b00 4023static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4024 .attr = {
4025 .name = "update_fw",
4026 .mode = S_IWUSR,
4027 },
4028 .store = ipr_store_update_fw
4029};
4030
75576bb9
WB		 4031/**
4032 * ipr_show_fw_type - Show the adapter's firmware type.
4033 * @dev: class device struct
4034 * @buf: buffer
4035 *
4036 * Return value:
4037 * number of bytes printed to buffer
4038 **/
4039static ssize_t ipr_show_fw_type(struct device *dev,
4040 struct device_attribute *attr, char *buf)
4041{
4042 struct Scsi_Host *shost = class_to_shost(dev);
4043 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4044 unsigned long lock_flags = 0;
4045 int len;
4046
4047 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4048 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4049 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4050 return len;
4051}
4052
4053static struct device_attribute ipr_ioa_fw_type_attr = {
4054 .attr = {
4055 .name = "fw_type",
4056 .mode = S_IRUGO,
4057 },
4058 .show = ipr_show_fw_type
4059};
4060
ee959b00 4061static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4062 &ipr_fw_version_attr,
4063 &ipr_log_level_attr,
4064 &ipr_diagnostics_attr,
f37eb54b 4065 &ipr_ioa_state_attr,
1da177e4
LT		 4066 &ipr_ioa_reset_attr,
4067 &ipr_update_fw_attr,
75576bb9 4068 &ipr_ioa_fw_type_attr,
b53d124a 4069 &ipr_iopoll_weight_attr,
1da177e4
LT		 4070 NULL,
4071};
4072
4073#ifdef CONFIG_SCSI_IPR_DUMP
4074/**
4075 * ipr_read_dump - Dump the adapter
2c3c8bea 4076 * @filp: open sysfs file
1da177e4 4077 * @kobj: kobject struct
91a69029 4078 * @bin_attr: bin_attribute struct
1da177e4
LT		 4079 * @buf: buffer
4080 * @off: offset
4081 * @count: buffer size
4082 *
4083 * Return value:
4084 * number of bytes printed to buffer
4085 **/
2c3c8bea 4086static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4087 struct bin_attribute *bin_attr,
4088 char *buf, loff_t off, size_t count)
1da177e4 4089{
ee959b00 4090 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4091 struct Scsi_Host *shost = class_to_shost(cdev);
4092 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4093 struct ipr_dump *dump;
4094 unsigned long lock_flags = 0;
4095 char *src;
4d4dd706 4096 int len, sdt_end;
1da177e4
LT		 4097 size_t rc = count;
4098
4099 if (!capable(CAP_SYS_ADMIN))
4100 return -EACCES;
4101
4102 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4103 dump = ioa_cfg->dump;
4104
4105 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4106 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4107 return 0;
4108 }
4109 kref_get(&dump->kref);
4110 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4111
4112 if (off > dump->driver_dump.hdr.len) {
4113 kref_put(&dump->kref, ipr_release_dump);
4114 return 0;
4115 }
4116
4117 if (off + count > dump->driver_dump.hdr.len) {
4118 count = dump->driver_dump.hdr.len - off;
4119 rc = count;
4120 }
4121
4122 if (count && off < sizeof(dump->driver_dump)) {
4123 if (off + count > sizeof(dump->driver_dump))
4124 len = sizeof(dump->driver_dump) - off;
4125 else
4126 len = count;
4127 src = (u8 *)&dump->driver_dump + off;
4128 memcpy(buf, src, len);
4129 buf += len;
4130 off += len;
4131 count -= len;
4132 }
4133
4134 off -= sizeof(dump->driver_dump);
4135
4d4dd706
KSS		 4136 if (ioa_cfg->sis64)
4137 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4138 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4139 sizeof(struct ipr_sdt_entry));
4140 else
4141 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4142 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4143
4144 if (count && off < sdt_end) {
4145 if (off + count > sdt_end)
4146 len = sdt_end - off;
1da177e4
LT		 4147 else
4148 len = count;
4149 src = (u8 *)&dump->ioa_dump + off;
4150 memcpy(buf, src, len);
4151 buf += len;
4152 off += len;
4153 count -= len;
4154 }
4155
4d4dd706 4156 off -= sdt_end;
1da177e4
LT		 4157
4158 while (count) {
4159 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4160 len = PAGE_ALIGN(off) - off;
4161 else
4162 len = count;
4163 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4164 src += off & ~PAGE_MASK;
4165 memcpy(buf, src, len);
4166 buf += len;
4167 off += len;
4168 count -= len;
4169 }
4170
4171 kref_put(&dump->kref, ipr_release_dump);
4172 return rc;
4173}
4174
4175/**
4176 * ipr_alloc_dump - Prepare for adapter dump
4177 * @ioa_cfg: ioa config struct
4178 *
4179 * Return value:
4180 * 0 on success / other on failure
4181 **/
4182static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4183{
4184 struct ipr_dump *dump;
4d4dd706 4185 __be32 **ioa_data;
1da177e4
LT		 4186 unsigned long lock_flags = 0;
4187
0bc42e35 4188 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4189
4190 if (!dump) {
4191 ipr_err("Dump memory allocation failed\n");
4192 return -ENOMEM;
4193 }
4194
4d4dd706
KSS		 4195 if (ioa_cfg->sis64)
4196 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4197 else
4198 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4199
4200 if (!ioa_data) {
4201 ipr_err("Dump memory allocation failed\n");
4202 kfree(dump);
4203 return -ENOMEM;
4204 }
4205
4206 dump->ioa_dump.ioa_data = ioa_data;
4207
1da177e4
LT		 4208 kref_init(&dump->kref);
4209 dump->ioa_cfg = ioa_cfg;
4210
4211 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4212
4213 if (INACTIVE != ioa_cfg->sdt_state) {
4214 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4215 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4216 kfree(dump);
4217 return 0;
4218 }
4219
4220 ioa_cfg->dump = dump;
4221 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4222 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4223 ioa_cfg->dump_taken = 1;
4224 schedule_work(&ioa_cfg->work_q);
4225 }
4226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4227
1da177e4
LT		 4228 return 0;
4229}
4230
4231/**
4232 * ipr_free_dump - Free adapter dump memory
4233 * @ioa_cfg: ioa config struct
4234 *
4235 * Return value:
4236 * 0 on success / other on failure
4237 **/
4238static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4239{
4240 struct ipr_dump *dump;
4241 unsigned long lock_flags = 0;
4242
4243 ENTER;
4244
4245 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4246 dump = ioa_cfg->dump;
4247 if (!dump) {
4248 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4249 return 0;
4250 }
4251
4252 ioa_cfg->dump = NULL;
4253 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4254
4255 kref_put(&dump->kref, ipr_release_dump);
4256
4257 LEAVE;
4258 return 0;
4259}
4260
4261/**
4262 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4263 * @filp: open sysfs file
1da177e4 4264 * @kobj: kobject struct
91a69029 4265 * @bin_attr: bin_attribute struct
1da177e4
LT		 4266 * @buf: buffer
4267 * @off: offset
4268 * @count: buffer size
4269 *
4270 * Return value:
4271 * number of bytes printed to buffer
4272 **/
2c3c8bea 4273static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4274 struct bin_attribute *bin_attr,
4275 char *buf, loff_t off, size_t count)
1da177e4 4276{
ee959b00 4277 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4278 struct Scsi_Host *shost = class_to_shost(cdev);
4279 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4280 int rc;
4281
4282 if (!capable(CAP_SYS_ADMIN))
4283 return -EACCES;
4284
4285 if (buf[0] == '1')
4286 rc = ipr_alloc_dump(ioa_cfg);
4287 else if (buf[0] == '0')
4288 rc = ipr_free_dump(ioa_cfg);
4289 else
4290 return -EINVAL;
4291
4292 if (rc)
4293 return rc;
4294 else
4295 return count;
4296}
4297
4298static struct bin_attribute ipr_dump_attr = {
4299 .attr = {
4300 .name = "dump",
4301 .mode = S_IRUSR | S_IWUSR,
4302 },
4303 .size = 0,
4304 .read = ipr_read_dump,
4305 .write = ipr_write_dump
4306};
4307#else
4308static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4309#endif
4310
4311/**
4312 * ipr_change_queue_depth - Change the device's queue depth
4313 * @sdev: scsi device struct
4314 * @qdepth: depth to set
e881a172 4315 * @reason: calling context
1da177e4
LT		 4316 *
4317 * Return value:
4318 * actual depth set
4319 **/
e881a172
MC		 4320static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4321 int reason)
1da177e4 4322{
35a39691
BK		 4323 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4324 struct ipr_resource_entry *res;
4325 unsigned long lock_flags = 0;
4326
e881a172
MC		 4327 if (reason != SCSI_QDEPTH_DEFAULT)
4328 return -EOPNOTSUPP;
4329
35a39691
BK		 4330 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4331 res = (struct ipr_resource_entry *)sdev->hostdata;
4332
4333 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4334 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4335 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4336
1da177e4
LT		 4337 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4338 return sdev->queue_depth;
4339}
4340
4341/**
4342 * ipr_change_queue_type - Change the device's queue type
4343 * @dsev: scsi device struct
4344 * @tag_type: type of tags to use
4345 *
4346 * Return value:
4347 * actual queue type set
4348 **/
4349static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4350{
4351 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4352 struct ipr_resource_entry *res;
4353 unsigned long lock_flags = 0;
4354
4355 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4356 res = (struct ipr_resource_entry *)sdev->hostdata;
4357
4358 if (res) {
4359 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4360 /*
4361 * We don't bother quiescing the device here since the
4362 * adapter firmware does it for us.
4363 */
4364 scsi_set_tag_type(sdev, tag_type);
4365
4366 if (tag_type)
4367 scsi_activate_tcq(sdev, sdev->queue_depth);
4368 else
4369 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4370 } else
4371 tag_type = 0;
4372 } else
4373 tag_type = 0;
4374
4375 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4376 return tag_type;
4377}
4378
4379/**
4380 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4381 * @dev: device struct
46d74563 4382 * @attr: device attribute structure
1da177e4
LT		 4383 * @buf: buffer
4384 *
4385 * Return value:
4386 * number of bytes printed to buffer
4387 **/
10523b3b 4388static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4389{
4390 struct scsi_device *sdev = to_scsi_device(dev);
4391 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4392 struct ipr_resource_entry *res;
4393 unsigned long lock_flags = 0;
4394 ssize_t len = -ENXIO;
4395
4396 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4397 res = (struct ipr_resource_entry *)sdev->hostdata;
4398 if (res)
3e7ebdfa 4399 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4400 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4401 return len;
4402}
4403
4404static struct device_attribute ipr_adapter_handle_attr = {
4405 .attr = {
4406 .name = "adapter_handle",
4407 .mode = S_IRUSR,
4408 },
4409 .show = ipr_show_adapter_handle
4410};
4411
3e7ebdfa 4412/**
5adcbeb3
WB		 4413 * ipr_show_resource_path - Show the resource path or the resource address for
4414 * this device.
3e7ebdfa 4415 * @dev: device struct
46d74563 4416 * @attr: device attribute structure
3e7ebdfa
WB		 4417 * @buf: buffer
4418 *
4419 * Return value:
4420 * number of bytes printed to buffer
4421 **/
4422static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4423{
4424 struct scsi_device *sdev = to_scsi_device(dev);
4425 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4426 struct ipr_resource_entry *res;
4427 unsigned long lock_flags = 0;
4428 ssize_t len = -ENXIO;
4429 char buffer[IPR_MAX_RES_PATH_LENGTH];
4430
4431 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4432 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4433 if (res && ioa_cfg->sis64)
3e7ebdfa 4434 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4435 __ipr_format_res_path(res->res_path, buffer,
4436 sizeof(buffer)));
5adcbeb3
WB		 4437 else if (res)
4438 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4439 res->bus, res->target, res->lun);
4440
3e7ebdfa
WB		 4441 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4442 return len;
4443}
4444
4445static struct device_attribute ipr_resource_path_attr = {
4446 .attr = {
4447 .name = "resource_path",
75576bb9 4448 .mode = S_IRUGO,
3e7ebdfa
WB		 4449 },
4450 .show = ipr_show_resource_path
4451};
4452
46d74563
WB		 4453/**
4454 * ipr_show_device_id - Show the device_id for this device.
4455 * @dev: device struct
4456 * @attr: device attribute structure
4457 * @buf: buffer
4458 *
4459 * Return value:
4460 * number of bytes printed to buffer
4461 **/
4462static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4463{
4464 struct scsi_device *sdev = to_scsi_device(dev);
4465 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4466 struct ipr_resource_entry *res;
4467 unsigned long lock_flags = 0;
4468 ssize_t len = -ENXIO;
4469
4470 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4471 res = (struct ipr_resource_entry *)sdev->hostdata;
4472 if (res && ioa_cfg->sis64)
4473 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4474 else if (res)
4475 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4476
4477 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4478 return len;
4479}
4480
4481static struct device_attribute ipr_device_id_attr = {
4482 .attr = {
4483 .name = "device_id",
4484 .mode = S_IRUGO,
4485 },
4486 .show = ipr_show_device_id
4487};
4488
75576bb9
WB		 4489/**
4490 * ipr_show_resource_type - Show the resource type for this device.
4491 * @dev: device struct
46d74563 4492 * @attr: device attribute structure
75576bb9
WB		 4493 * @buf: buffer
4494 *
4495 * Return value:
4496 * number of bytes printed to buffer
4497 **/
4498static ssize_t ipr_show_resource_type(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
4506 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4507 res = (struct ipr_resource_entry *)sdev->hostdata;
4508
4509 if (res)
4510 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4511
4512 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4513 return len;
4514}
4515
4516static struct device_attribute ipr_resource_type_attr = {
4517 .attr = {
4518 .name = "resource_type",
4519 .mode = S_IRUGO,
4520 },
4521 .show = ipr_show_resource_type
4522};
4523
1da177e4
LT		 4524static struct device_attribute *ipr_dev_attrs[] = {
4525 &ipr_adapter_handle_attr,
3e7ebdfa 4526 &ipr_resource_path_attr,
46d74563 4527 &ipr_device_id_attr,
75576bb9 4528 &ipr_resource_type_attr,
1da177e4
LT		 4529 NULL,
4530};
4531
4532/**
4533 * ipr_biosparam - Return the HSC mapping
4534 * @sdev: scsi device struct
4535 * @block_device: block device pointer
4536 * @capacity: capacity of the device
4537 * @parm: Array containing returned HSC values.
4538 *
4539 * This function generates the HSC parms that fdisk uses.
4540 * We want to make sure we return something that places partitions
4541 * on 4k boundaries for best performance with the IOA.
4542 *
4543 * Return value:
4544 * 0 on success
4545 **/
4546static int ipr_biosparam(struct scsi_device *sdev,
4547 struct block_device *block_device,
4548 sector_t capacity, int *parm)
4549{
4550 int heads, sectors;
4551 sector_t cylinders;
4552
4553 heads = 128;
4554 sectors = 32;
4555
4556 cylinders = capacity;
4557 sector_div(cylinders, (128 * 32));
4558
4559 /* return result */
4560 parm[0] = heads;
4561 parm[1] = sectors;
4562 parm[2] = cylinders;
4563
4564 return 0;
4565}
4566
35a39691
BK		 4567/**
4568 * ipr_find_starget - Find target based on bus/target.
4569 * @starget: scsi target struct
4570 *
4571 * Return value:
4572 * resource entry pointer if found / NULL if not found
4573 **/
4574static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4575{
4576 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4577 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4578 struct ipr_resource_entry *res;
4579
4580 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4581 if ((res->bus == starget->channel) &&
0ee1d714 4582 (res->target == starget->id)) {
35a39691
BK		 4583 return res;
4584 }
4585 }
4586
4587 return NULL;
4588}
4589
4590static struct ata_port_info sata_port_info;
4591
4592/**
4593 * ipr_target_alloc - Prepare for commands to a SCSI target
4594 * @starget: scsi target struct
4595 *
4596 * If the device is a SATA device, this function allocates an
4597 * ATA port with libata, else it does nothing.
4598 *
4599 * Return value:
4600 * 0 on success / non-0 on failure
4601 **/
4602static int ipr_target_alloc(struct scsi_target *starget)
4603{
4604 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4605 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4606 struct ipr_sata_port *sata_port;
4607 struct ata_port *ap;
4608 struct ipr_resource_entry *res;
4609 unsigned long lock_flags;
4610
4611 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4612 res = ipr_find_starget(starget);
4613 starget->hostdata = NULL;
4614
4615 if (res && ipr_is_gata(res)) {
4616 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4617 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4618 if (!sata_port)
4619 return -ENOMEM;
4620
4621 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4622 if (ap) {
4623 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4624 sata_port->ioa_cfg = ioa_cfg;
4625 sata_port->ap = ap;
4626 sata_port->res = res;
4627
4628 res->sata_port = sata_port;
4629 ap->private_data = sata_port;
4630 starget->hostdata = sata_port;
4631 } else {
4632 kfree(sata_port);
4633 return -ENOMEM;
4634 }
4635 }
4636 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4637
4638 return 0;
4639}
4640
4641/**
4642 * ipr_target_destroy - Destroy a SCSI target
4643 * @starget: scsi target struct
4644 *
4645 * If the device was a SATA device, this function frees the libata
4646 * ATA port, else it does nothing.
4647 *
4648 **/
4649static void ipr_target_destroy(struct scsi_target *starget)
4650{
4651 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4652 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4653 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4654
4655 if (ioa_cfg->sis64) {
0ee1d714
BK		 4656 if (!ipr_find_starget(starget)) {
4657 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4658 clear_bit(starget->id, ioa_cfg->array_ids);
4659 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4660 clear_bit(starget->id, ioa_cfg->vset_ids);
4661 else if (starget->channel == 0)
4662 clear_bit(starget->id, ioa_cfg->target_ids);
4663 }
3e7ebdfa 4664 }
35a39691
BK		 4665
4666 if (sata_port) {
4667 starget->hostdata = NULL;
4668 ata_sas_port_destroy(sata_port->ap);
4669 kfree(sata_port);
4670 }
4671}
4672
4673/**
4674 * ipr_find_sdev - Find device based on bus/target/lun.
4675 * @sdev: scsi device struct
4676 *
4677 * Return value:
4678 * resource entry pointer if found / NULL if not found
4679 **/
4680static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4681{
4682 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4683 struct ipr_resource_entry *res;
4684
4685 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4686 if ((res->bus == sdev->channel) &&
4687 (res->target == sdev->id) &&
4688 (res->lun == sdev->lun))
35a39691
BK		 4689 return res;
4690 }
4691
4692 return NULL;
4693}
4694
1da177e4
LT		 4695/**
4696 * ipr_slave_destroy - Unconfigure a SCSI device
4697 * @sdev: scsi device struct
4698 *
4699 * Return value:
4700 * nothing
4701 **/
4702static void ipr_slave_destroy(struct scsi_device *sdev)
4703{
4704 struct ipr_resource_entry *res;
4705 struct ipr_ioa_cfg *ioa_cfg;
4706 unsigned long lock_flags = 0;
4707
4708 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4709
4710 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4711 res = (struct ipr_resource_entry *) sdev->hostdata;
4712 if (res) {
35a39691 4713 if (res->sata_port)
3e4ec344 4714 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4715 sdev->hostdata = NULL;
4716 res->sdev = NULL;
35a39691 4717 res->sata_port = NULL;
1da177e4
LT		 4718 }
4719 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4720}
4721
4722/**
4723 * ipr_slave_configure - Configure a SCSI device
4724 * @sdev: scsi device struct
4725 *
4726 * This function configures the specified scsi device.
4727 *
4728 * Return value:
4729 * 0 on success
4730 **/
4731static int ipr_slave_configure(struct scsi_device *sdev)
4732{
4733 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4734 struct ipr_resource_entry *res;
dd406ef8 4735 struct ata_port *ap = NULL;
1da177e4 4736 unsigned long lock_flags = 0;
3e7ebdfa 4737 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4738
4739 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4740 res = sdev->hostdata;
4741 if (res) {
4742 if (ipr_is_af_dasd_device(res))
4743 sdev->type = TYPE_RAID;
0726ce26 4744 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4745 sdev->scsi_level = 4;
0726ce26
BK		 4746 sdev->no_uld_attach = 1;
4747 }
1da177e4 4748 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4749 blk_queue_rq_timeout(sdev->request_queue,
4750 IPR_VSET_RW_TIMEOUT);
086fa5ff 4751 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4752 }
dd406ef8
BK		 4753 if (ipr_is_gata(res) && res->sata_port)
4754 ap = res->sata_port->ap;
4755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4756
4757 if (ap) {
35a39691 4758 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8
BK		 4759 ata_sas_slave_configure(sdev, ap);
4760 } else
35a39691 4761 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3e7ebdfa
WB		 4762 if (ioa_cfg->sis64)
4763 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4764 ipr_format_res_path(ioa_cfg,
4765 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4766 return 0;
1da177e4
LT		 4767 }
4768 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4769 return 0;
4770}
4771
35a39691
BK		 4772/**
4773 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4774 * @sdev: scsi device struct
4775 *
4776 * This function initializes an ATA port so that future commands
4777 * sent through queuecommand will work.
4778 *
4779 * Return value:
4780 * 0 on success
4781 **/
4782static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4783{
4784 struct ipr_sata_port *sata_port = NULL;
4785 int rc = -ENXIO;
4786
4787 ENTER;
4788 if (sdev->sdev_target)
4789 sata_port = sdev->sdev_target->hostdata;
b2024459 4790 if (sata_port) {
35a39691 4791 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4792 if (rc == 0)
4793 rc = ata_sas_sync_probe(sata_port->ap);
4794 }
4795
35a39691
BK		 4796 if (rc)
4797 ipr_slave_destroy(sdev);
4798
4799 LEAVE;
4800 return rc;
4801}
4802
1da177e4
LT		 4803/**
4804 * ipr_slave_alloc - Prepare for commands to a device.
4805 * @sdev: scsi device struct
4806 *
4807 * This function saves a pointer to the resource entry
4808 * in the scsi device struct if the device exists. We
4809 * can then use this pointer in ipr_queuecommand when
4810 * handling new commands.
4811 *
4812 * Return value:
692aebfc 4813 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4814 **/
4815static int ipr_slave_alloc(struct scsi_device *sdev)
4816{
4817 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4818 struct ipr_resource_entry *res;
4819 unsigned long lock_flags;
692aebfc 4820 int rc = -ENXIO;
1da177e4
LT		 4821
4822 sdev->hostdata = NULL;
4823
4824 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4825
35a39691
BK		 4826 res = ipr_find_sdev(sdev);
4827 if (res) {
4828 res->sdev = sdev;
4829 res->add_to_ml = 0;
4830 res->in_erp = 0;
4831 sdev->hostdata = res;
4832 if (!ipr_is_naca_model(res))
4833 res->needs_sync_complete = 1;
4834 rc = 0;
4835 if (ipr_is_gata(res)) {
4836 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4837 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4838 }
4839 }
4840
4841 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4842
692aebfc 4843 return rc;
1da177e4
LT		 4844}
4845
70233ac5 4846static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4847{
4848 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4849 unsigned long lock_flags = 0;
4850 int rc = SUCCESS;
1da177e4
LT		 4851
4852 ENTER;
70233ac5 4853 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4854 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4855
96b04db9 4856 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4857 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4858 dev_err(&ioa_cfg->pdev->dev,
4859 "Adapter being reset as a result of error recovery.\n");
1da177e4 4860
a92fa25c
KSS		 4861 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4862 ioa_cfg->sdt_state = GET_DUMP;
4863 }
1da177e4 4864
70233ac5 4865 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4866 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4867 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 4868
70233ac5 4869 /* If we got hit with a host reset while we were already resetting
4870 the adapter for some reason, and the reset failed. */
4871 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4872 ipr_trace;
4873 rc = FAILED;
4874 }
df0ae249 4875
70233ac5 4876 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4877 LEAVE;
df0ae249
JG		 4878 return rc;
4879}
4880
c6513096
BK		 4881/**
4882 * ipr_device_reset - Reset the device
4883 * @ioa_cfg: ioa config struct
4884 * @res: resource entry struct
4885 *
4886 * This function issues a device reset to the affected device.
4887 * If the device is a SCSI device, a LUN reset will be sent
4888 * to the device first. If that does not work, a target reset
35a39691
BK		 4889 * will be sent. If the device is a SATA device, a PHY reset will
4890 * be sent.
c6513096
BK		 4891 *
4892 * Return value:
4893 * 0 on success / non-zero on failure
4894 **/
4895static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4896 struct ipr_resource_entry *res)
4897{
4898 struct ipr_cmnd *ipr_cmd;
4899 struct ipr_ioarcb *ioarcb;
4900 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4901 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4902 u32 ioasc;
4903
4904 ENTER;
4905 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4906 ioarcb = &ipr_cmd->ioarcb;
4907 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4908
4909 if (ipr_cmd->ioa_cfg->sis64) {
4910 regs = &ipr_cmd->i.ata_ioadl.regs;
4911 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4912 } else
4913 regs = &ioarcb->u.add_data.u.regs;
c6513096 4914
3e7ebdfa 4915 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4916 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4917 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4918 if (ipr_is_gata(res)) {
4919 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4920 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4921 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4922 }
c6513096
BK		 4923
4924 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4925 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 4926 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 4927 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4928 if (ipr_cmd->ioa_cfg->sis64)
4929 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4930 sizeof(struct ipr_ioasa_gata));
4931 else
4932 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4933 sizeof(struct ipr_ioasa_gata));
4934 }
c6513096
BK		 4935
4936 LEAVE;
203fa3fe 4937 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 4938}
4939
35a39691
BK		 4940/**
4941 * ipr_sata_reset - Reset the SATA port
cc0680a5 4942 * @link: SATA link to reset
35a39691
BK		 4943 * @classes: class of the attached device
4944 *
cc0680a5 4945 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4946 *
4947 * Return value:
4948 * 0 on success / non-zero on failure
4949 **/
cc0680a5 4950static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4951 unsigned long deadline)
35a39691 4952{
cc0680a5 4953 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4954 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4955 struct ipr_resource_entry *res;
4956 unsigned long lock_flags = 0;
4957 int rc = -ENXIO;
4958
4959 ENTER;
4960 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 4961 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 4962 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4963 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4964 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4965 }
4966
35a39691
BK		 4967 res = sata_port->res;
4968 if (res) {
4969 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4970 *classes = res->ata_class;
35a39691
BK		 4971 }
4972
4973 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4974 LEAVE;
4975 return rc;
4976}
4977
1da177e4
LT		 4978/**
4979 * ipr_eh_dev_reset - Reset the device
4980 * @scsi_cmd: scsi command struct
4981 *
4982 * This function issues a device reset to the affected device.
4983 * A LUN reset will be sent to the device first. If that does
4984 * not work, a target reset will be sent.
4985 *
4986 * Return value:
4987 * SUCCESS / FAILED
4988 **/
203fa3fe 4989static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 4990{
4991 struct ipr_cmnd *ipr_cmd;
4992 struct ipr_ioa_cfg *ioa_cfg;
4993 struct ipr_resource_entry *res;
35a39691
BK		 4994 struct ata_port *ap;
4995 int rc = 0;
05a6538a 4996 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 4997
4998 ENTER;
4999 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
5000 res = scsi_cmd->device->hostdata;
5001
eeb88307 5002 if (!res)
1da177e4
LT		 5003 return FAILED;
5004
5005 /*
5006 * If we are currently going through reset/reload, return failed. This will force the
5007 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5008 * reset to complete
5009 */
5010 if (ioa_cfg->in_reset_reload)
5011 return FAILED;
56d6aa33 5012 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5013 return FAILED;
5014
05a6538a 5015 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5016 spin_lock(&hrrq->_lock);
05a6538a 5017 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5018 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5019 if (ipr_cmd->scsi_cmd)
5020 ipr_cmd->done = ipr_scsi_eh_done;
5021 if (ipr_cmd->qc)
5022 ipr_cmd->done = ipr_sata_eh_done;
5023 if (ipr_cmd->qc &&
5024 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5025 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5026 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5027 }
7402ecef 5028 }
1da177e4 5029 }
56d6aa33 5030 spin_unlock(&hrrq->_lock);
1da177e4 5031 }
1da177e4 5032 res->resetting_device = 1;
fb3ed3cb 5033 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5034
5035 if (ipr_is_gata(res) && res->sata_port) {
5036 ap = res->sata_port->ap;
5037 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5038 ata_std_error_handler(ap);
35a39691 5039 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5040
05a6538a 5041 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5042 spin_lock(&hrrq->_lock);
05a6538a 5043 list_for_each_entry(ipr_cmd,
5044 &hrrq->hrrq_pending_q, queue) {
5045 if (ipr_cmd->ioarcb.res_handle ==
5046 res->res_handle) {
5047 rc = -EIO;
5048 break;
5049 }
5af23d26 5050 }
56d6aa33 5051 spin_unlock(&hrrq->_lock);
5af23d26 5052 }
35a39691
BK		 5053 } else
5054 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5055 res->resetting_device = 0;
0b1f8d44 5056 res->reset_occurred = 1;
1da177e4 5057
1da177e4 5058 LEAVE;
203fa3fe 5059 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5060}
5061
203fa3fe 5062static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5063{
5064 int rc;
5065
5066 spin_lock_irq(cmd->device->host->host_lock);
5067 rc = __ipr_eh_dev_reset(cmd);
5068 spin_unlock_irq(cmd->device->host->host_lock);
5069
5070 return rc;
5071}
5072
1da177e4
LT		 5073/**
5074 * ipr_bus_reset_done - Op done function for bus reset.
5075 * @ipr_cmd: ipr command struct
5076 *
5077 * This function is the op done function for a bus reset
5078 *
5079 * Return value:
5080 * none
5081 **/
5082static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5083{
5084 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5085 struct ipr_resource_entry *res;
5086
5087 ENTER;
3e7ebdfa
WB		 5088 if (!ioa_cfg->sis64)
5089 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5090 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5091 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5092 break;
5093 }
1da177e4 5094 }
1da177e4
LT		 5095
5096 /*
5097 * If abort has not completed, indicate the reset has, else call the
5098 * abort's done function to wake the sleeping eh thread
5099 */
5100 if (ipr_cmd->sibling->sibling)
5101 ipr_cmd->sibling->sibling = NULL;
5102 else
5103 ipr_cmd->sibling->done(ipr_cmd->sibling);
5104
05a6538a 5105 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5106 LEAVE;
5107}
5108
5109/**
5110 * ipr_abort_timeout - An abort task has timed out
5111 * @ipr_cmd: ipr command struct
5112 *
5113 * This function handles when an abort task times out. If this
5114 * happens we issue a bus reset since we have resources tied
5115 * up that must be freed before returning to the midlayer.
5116 *
5117 * Return value:
5118 * none
5119 **/
5120static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5121{
5122 struct ipr_cmnd *reset_cmd;
5123 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5124 struct ipr_cmd_pkt *cmd_pkt;
5125 unsigned long lock_flags = 0;
5126
5127 ENTER;
5128 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5129 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5130 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5131 return;
5132 }
5133
fb3ed3cb 5134 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5135 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5136 ipr_cmd->sibling = reset_cmd;
5137 reset_cmd->sibling = ipr_cmd;
5138 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5139 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5140 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5141 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5142 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5143
5144 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5145 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5146 LEAVE;
5147}
5148
5149/**
5150 * ipr_cancel_op - Cancel specified op
5151 * @scsi_cmd: scsi command struct
5152 *
5153 * This function cancels specified op.
5154 *
5155 * Return value:
5156 * SUCCESS / FAILED
5157 **/
203fa3fe 5158static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5159{
5160 struct ipr_cmnd *ipr_cmd;
5161 struct ipr_ioa_cfg *ioa_cfg;
5162 struct ipr_resource_entry *res;
5163 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5164 u32 ioasc, int_reg;
1da177e4 5165 int op_found = 0;
05a6538a 5166 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5167
5168 ENTER;
5169 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5170 res = scsi_cmd->device->hostdata;
5171
8fa728a2
JG		 5172 /* If we are currently going through reset/reload, return failed.
5173 * This will force the mid-layer to call ipr_eh_host_reset,
5174 * which will then go to sleep and wait for the reset to complete
5175 */
56d6aa33 5176 if (ioa_cfg->in_reset_reload ||
5177 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5178 return FAILED;
a92fa25c
KSS		 5179 if (!res)
5180 return FAILED;
5181
5182 /*
5183 * If we are aborting a timed out op, chances are that the timeout was caused
5184 * by a still not detected EEH error. In such cases, reading a register will
5185 * trigger the EEH recovery infrastructure.
5186 */
5187 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5188
5189 if (!ipr_is_gscsi(res))
1da177e4
LT		 5190 return FAILED;
5191
05a6538a 5192 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5193 spin_lock(&hrrq->_lock);
05a6538a 5194 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5195 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5196 ipr_cmd->done = ipr_scsi_eh_done;
5197 op_found = 1;
5198 break;
5199 }
1da177e4 5200 }
56d6aa33 5201 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5202 }
5203
5204 if (!op_found)
5205 return SUCCESS;
5206
5207 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5208 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5209 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5210 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5211 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5212 ipr_cmd->u.sdev = scsi_cmd->device;
5213
fb3ed3cb
BK		 5214 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5215 scsi_cmd->cmnd[0]);
1da177e4 5216 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5217 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5218
5219 /*
5220 * If the abort task timed out and we sent a bus reset, we will get
5221 * one the following responses to the abort
5222 */
5223 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5224 ioasc = 0;
5225 ipr_trace;
5226 }
5227
c4ee22a3 5228 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa
BK		 5229 if (!ipr_is_naca_model(res))
5230 res->needs_sync_complete = 1;
1da177e4
LT		 5231
5232 LEAVE;
203fa3fe 5233 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5234}
5235
5236/**
5237 * ipr_eh_abort - Abort a single op
5238 * @scsi_cmd: scsi command struct
5239 *
5240 * Return value:
5241 * SUCCESS / FAILED
5242 **/
203fa3fe 5243static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5244{
8fa728a2
JG		 5245 unsigned long flags;
5246 int rc;
1da177e4
LT		 5247
5248 ENTER;
1da177e4 5249
8fa728a2
JG		 5250 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5251 rc = ipr_cancel_op(scsi_cmd);
5252 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 5253
5254 LEAVE;
8fa728a2 5255 return rc;
1da177e4
LT		 5256}
5257
5258/**
5259 * ipr_handle_other_interrupt - Handle "other" interrupts
5260 * @ioa_cfg: ioa config struct
634651fa 5261 * @int_reg: interrupt register
1da177e4
LT		 5262 *
5263 * Return value:
5264 * IRQ_NONE / IRQ_HANDLED
5265 **/
634651fa 5266static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5267 u32 int_reg)
1da177e4
LT		 5268{
5269 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5270 u32 int_mask_reg;
56d6aa33 5271
7dacb64f
WB		 5272 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5273 int_reg &= ~int_mask_reg;
5274
5275 /* If an interrupt on the adapter did not occur, ignore it.
5276 * Or in the case of SIS 64, check for a stage change interrupt.
5277 */
5278 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5279 if (ioa_cfg->sis64) {
5280 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5281 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5282 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5283
5284 /* clear stage change */
5285 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5286 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5287 list_del(&ioa_cfg->reset_cmd->queue);
5288 del_timer(&ioa_cfg->reset_cmd->timer);
5289 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5290 return IRQ_HANDLED;
5291 }
5292 }
5293
5294 return IRQ_NONE;
5295 }
1da177e4
LT		 5296
5297 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5298 /* Mask the interrupt */
5299 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5300
5301 /* Clear the interrupt */
5302 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5303 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5304
5305 list_del(&ioa_cfg->reset_cmd->queue);
5306 del_timer(&ioa_cfg->reset_cmd->timer);
5307 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5308 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5309 if (ioa_cfg->clear_isr) {
5310 if (ipr_debug && printk_ratelimit())
5311 dev_err(&ioa_cfg->pdev->dev,
5312 "Spurious interrupt detected. 0x%08X\n", int_reg);
5313 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5314 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5315 return IRQ_NONE;
5316 }
1da177e4
LT		 5317 } else {
5318 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5319 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5320 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5321 dev_err(&ioa_cfg->pdev->dev,
5322 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5323 else
5324 dev_err(&ioa_cfg->pdev->dev,
5325 "Permanent IOA failure. 0x%08X\n", int_reg);
5326
5327 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5328 ioa_cfg->sdt_state = GET_DUMP;
5329
5330 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5331 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5332 }
56d6aa33 5333
1da177e4
LT		 5334 return rc;
5335}
5336
3feeb89d
WB		 5337/**
5338 * ipr_isr_eh - Interrupt service routine error handler
5339 * @ioa_cfg: ioa config struct
5340 * @msg: message to log
5341 *
5342 * Return value:
5343 * none
5344 **/
05a6538a 5345static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5346{
5347 ioa_cfg->errors_logged++;
05a6538a 5348 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5349
5350 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5351 ioa_cfg->sdt_state = GET_DUMP;
5352
5353 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5354}
5355
b53d124a 5356static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5357 struct list_head *doneq)
5358{
5359 u32 ioasc;
5360 u16 cmd_index;
5361 struct ipr_cmnd *ipr_cmd;
5362 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5363 int num_hrrq = 0;
5364
5365 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5366 if (!hrr_queue->allow_interrupts)
05a6538a 5367 return 0;
5368
5369 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5370 hrr_queue->toggle_bit) {
5371
5372 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5373 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5374 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5375
5376 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5377 cmd_index < hrr_queue->min_cmd_id)) {
5378 ipr_isr_eh(ioa_cfg,
5379 "Invalid response handle from IOA: ",
5380 cmd_index);
5381 break;
5382 }
5383
5384 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5385 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5386
5387 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5388
5389 list_move_tail(&ipr_cmd->queue, doneq);
5390
5391 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5392 hrr_queue->hrrq_curr++;
5393 } else {
5394 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5395 hrr_queue->toggle_bit ^= 1u;
5396 }
5397 num_hrrq++;
b53d124a 5398 if (budget > 0 && num_hrrq >= budget)
5399 break;
05a6538a 5400 }
b53d124a 5401
05a6538a 5402 return num_hrrq;
5403}
b53d124a 5404
5405static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5406{
5407 struct ipr_ioa_cfg *ioa_cfg;
5408 struct ipr_hrr_queue *hrrq;
5409 struct ipr_cmnd *ipr_cmd, *temp;
5410 unsigned long hrrq_flags;
5411 int completed_ops;
5412 LIST_HEAD(doneq);
5413
5414 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5415 ioa_cfg = hrrq->ioa_cfg;
5416
5417 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5418 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5419
5420 if (completed_ops < budget)
5421 blk_iopoll_complete(iop);
5422 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5423
5424 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5425 list_del(&ipr_cmd->queue);
5426 del_timer(&ipr_cmd->timer);
5427 ipr_cmd->fast_done(ipr_cmd);
5428 }
5429
5430 return completed_ops;
5431}
5432
1da177e4
LT		 5433/**
5434 * ipr_isr - Interrupt service routine
5435 * @irq: irq number
5436 * @devp: pointer to ioa config struct
1da177e4
LT		 5437 *
5438 * Return value:
5439 * IRQ_NONE / IRQ_HANDLED
5440 **/
7d12e780 5441static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5442{
05a6538a 5443 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5444 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5445 unsigned long hrrq_flags = 0;
7dacb64f 5446 u32 int_reg = 0;
3feeb89d 5447 int num_hrrq = 0;
7dacb64f 5448 int irq_none = 0;
172cd6e1 5449 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5450 irqreturn_t rc = IRQ_NONE;
172cd6e1 5451 LIST_HEAD(doneq);
1da177e4 5452
56d6aa33 5453 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5454 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5455 if (!hrrq->allow_interrupts) {
5456 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5457 return IRQ_NONE;
5458 }
5459
1da177e4 5460 while (1) {
b53d124a 5461 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5462 rc = IRQ_HANDLED;
1da177e4 5463
b53d124a 5464 if (!ioa_cfg->clear_isr)
5465 break;
7dd21308 5466
1da177e4 5467 /* Clear the PCI interrupt */
a5442ba4 5468 num_hrrq = 0;
3feeb89d 5469 do {
b53d124a 5470 writel(IPR_PCII_HRRQ_UPDATED,
5471 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5472 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5473 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5474 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5475
7dacb64f
WB		 5476 } else if (rc == IRQ_NONE && irq_none == 0) {
5477 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5478 irq_none++;
a5442ba4
WB		 5479 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5480 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5481 ipr_isr_eh(ioa_cfg,
5482 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5483 rc = IRQ_HANDLED;
b53d124a 5484 break;
1da177e4
LT		 5485 } else
5486 break;
5487 }
5488
5489 if (unlikely(rc == IRQ_NONE))
634651fa 5490 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5491
56d6aa33 5492 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5493 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5494 list_del(&ipr_cmd->queue);
5495 del_timer(&ipr_cmd->timer);
5496 ipr_cmd->fast_done(ipr_cmd);
5497 }
05a6538a 5498 return rc;
5499}
5500
5501/**
5502 * ipr_isr_mhrrq - Interrupt service routine
5503 * @irq: irq number
5504 * @devp: pointer to ioa config struct
5505 *
5506 * Return value:
5507 * IRQ_NONE / IRQ_HANDLED
5508 **/
5509static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5510{
5511 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5512 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5513 unsigned long hrrq_flags = 0;
05a6538a 5514 struct ipr_cmnd *ipr_cmd, *temp;
5515 irqreturn_t rc = IRQ_NONE;
5516 LIST_HEAD(doneq);
172cd6e1 5517
56d6aa33 5518 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5519
5520 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5521 if (!hrrq->allow_interrupts) {
5522 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5523 return IRQ_NONE;
5524 }
5525
89f8b33c 5526 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5527 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5528 hrrq->toggle_bit) {
5529 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5530 blk_iopoll_sched(&hrrq->iopoll);
5531 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5532 return IRQ_HANDLED;
5533 }
5534 } else {
5535 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5536 hrrq->toggle_bit)
05a6538a 5537
b53d124a 5538 if (ipr_process_hrrq(hrrq, -1, &doneq))
5539 rc = IRQ_HANDLED;
5540 }
05a6538a 5541
56d6aa33 5542 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5543
5544 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5545 list_del(&ipr_cmd->queue);
5546 del_timer(&ipr_cmd->timer);
5547 ipr_cmd->fast_done(ipr_cmd);
5548 }
1da177e4
LT		 5549 return rc;
5550}
5551
a32c055f
WB		 5552/**
5553 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5554 * @ioa_cfg: ioa config struct
5555 * @ipr_cmd: ipr command struct
5556 *
5557 * Return value:
5558 * 0 on success / -1 on failure
5559 **/
5560static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5561 struct ipr_cmnd *ipr_cmd)
5562{
5563 int i, nseg;
5564 struct scatterlist *sg;
5565 u32 length;
5566 u32 ioadl_flags = 0;
5567 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5568 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5569 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5570
5571 length = scsi_bufflen(scsi_cmd);
5572 if (!length)
5573 return 0;
5574
5575 nseg = scsi_dma_map(scsi_cmd);
5576 if (nseg < 0) {
51f52a47
AB		 5577 if (printk_ratelimit())
5578 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
a32c055f
WB		 5579 return -1;
5580 }
5581
5582 ipr_cmd->dma_use_sg = nseg;
5583
438b0331 5584 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5585 ioarcb->ioadl_len =
5586 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5587
a32c055f
WB		 5588 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5589 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5590 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5591 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5592 ioadl_flags = IPR_IOADL_FLAGS_READ;
5593
5594 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5595 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5596 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5597 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5598 }
5599
5600 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5601 return 0;
5602}
5603
1da177e4
LT		 5604/**
5605 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5606 * @ioa_cfg: ioa config struct
5607 * @ipr_cmd: ipr command struct
5608 *
5609 * Return value:
5610 * 0 on success / -1 on failure
5611 **/
5612static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5613 struct ipr_cmnd *ipr_cmd)
5614{
63015bc9
FT		 5615 int i, nseg;
5616 struct scatterlist *sg;
1da177e4
LT		 5617 u32 length;
5618 u32 ioadl_flags = 0;
5619 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5620 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5621 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5622
63015bc9
FT		 5623 length = scsi_bufflen(scsi_cmd);
5624 if (!length)
1da177e4
LT		 5625 return 0;
5626
63015bc9
FT		 5627 nseg = scsi_dma_map(scsi_cmd);
5628 if (nseg < 0) {
5629 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5630 return -1;
5631 }
51b1c7e1 5632
63015bc9
FT		 5633 ipr_cmd->dma_use_sg = nseg;
5634
5635 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5636 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5637 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5638 ioarcb->data_transfer_length = cpu_to_be32(length);
5639 ioarcb->ioadl_len =
63015bc9
FT		 5640 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5641 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5642 ioadl_flags = IPR_IOADL_FLAGS_READ;
5643 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5644 ioarcb->read_ioadl_len =
5645 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5646 }
1da177e4 5647
a32c055f
WB		 5648 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5649 ioadl = ioarcb->u.add_data.u.ioadl;
5650 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5651 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5652 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5653 }
1da177e4 5654
63015bc9
FT		 5655 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5656 ioadl[i].flags_and_data_len =
5657 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5658 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5659 }
5660
63015bc9
FT		 5661 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5662 return 0;
1da177e4
LT		 5663}
5664
5665/**
5666 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5667 * @scsi_cmd: scsi command struct
5668 *
5669 * Return value:
5670 * task attributes
5671 **/
5672static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5673{
5674 u8 tag[2];
5675 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5676
5677 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5678 switch (tag[0]) {
5679 case MSG_SIMPLE_TAG:
5680 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5681 break;
5682 case MSG_HEAD_TAG:
5683 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5684 break;
5685 case MSG_ORDERED_TAG:
5686 rc = IPR_FLAGS_LO_ORDERED_TASK;
5687 break;
5688 };
5689 }
5690
5691 return rc;
5692}
5693
5694/**
5695 * ipr_erp_done - Process completion of ERP for a device
5696 * @ipr_cmd: ipr command struct
5697 *
5698 * This function copies the sense buffer into the scsi_cmd
5699 * struct and pushes the scsi_done function.
5700 *
5701 * Return value:
5702 * nothing
5703 **/
5704static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5705{
5706 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5707 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5708 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5709
5710 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5711 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5712 scmd_printk(KERN_ERR, scsi_cmd,
5713 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5714 } else {
5715 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5716 SCSI_SENSE_BUFFERSIZE);
5717 }
5718
5719 if (res) {
ee0a90fa
BK		 5720 if (!ipr_is_naca_model(res))
5721 res->needs_sync_complete = 1;
1da177e4
LT		 5722 res->in_erp = 0;
5723 }
63015bc9 5724 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5725 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5726 scsi_cmd->scsi_done(scsi_cmd);
5727}
5728
5729/**
5730 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5731 * @ipr_cmd: ipr command struct
5732 *
5733 * Return value:
5734 * none
5735 **/
5736static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5737{
51b1c7e1 5738 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5739 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5740 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5741
5742 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5743 ioarcb->data_transfer_length = 0;
1da177e4 5744 ioarcb->read_data_transfer_length = 0;
a32c055f 5745 ioarcb->ioadl_len = 0;
1da177e4 5746 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5747 ioasa->hdr.ioasc = 0;
5748 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5749
5750 if (ipr_cmd->ioa_cfg->sis64)
5751 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5752 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5753 else {
5754 ioarcb->write_ioadl_addr =
5755 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5756 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5757 }
1da177e4
LT		 5758}
5759
5760/**
5761 * ipr_erp_request_sense - Send request sense to a device
5762 * @ipr_cmd: ipr command struct
5763 *
5764 * This function sends a request sense to a device as a result
5765 * of a check condition.
5766 *
5767 * Return value:
5768 * nothing
5769 **/
5770static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5771{
5772 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5773 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5774
5775 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5776 ipr_erp_done(ipr_cmd);
5777 return;
5778 }
5779
5780 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5781
5782 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5783 cmd_pkt->cdb[0] = REQUEST_SENSE;
5784 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5785 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5786 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5787 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5788
a32c055f
WB		 5789 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5790 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5791
5792 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5793 IPR_REQUEST_SENSE_TIMEOUT * 2);
5794}
5795
5796/**
5797 * ipr_erp_cancel_all - Send cancel all to a device
5798 * @ipr_cmd: ipr command struct
5799 *
5800 * This function sends a cancel all to a device to clear the
5801 * queue. If we are running TCQ on the device, QERR is set to 1,
5802 * which means all outstanding ops have been dropped on the floor.
5803 * Cancel all will return them to us.
5804 *
5805 * Return value:
5806 * nothing
5807 **/
5808static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5809{
5810 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5811 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5812 struct ipr_cmd_pkt *cmd_pkt;
5813
5814 res->in_erp = 1;
5815
5816 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5817
5818 if (!scsi_get_tag_type(scsi_cmd->device)) {
5819 ipr_erp_request_sense(ipr_cmd);
5820 return;
5821 }
5822
5823 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5824 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5825 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5826
5827 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5828 IPR_CANCEL_ALL_TIMEOUT);
5829}
5830
5831/**
5832 * ipr_dump_ioasa - Dump contents of IOASA
5833 * @ioa_cfg: ioa config struct
5834 * @ipr_cmd: ipr command struct
fe964d0a 5835 * @res: resource entry struct
1da177e4
LT		 5836 *
5837 * This function is invoked by the interrupt handler when ops
5838 * fail. It will log the IOASA if appropriate. Only called
5839 * for GPDD ops.
5840 *
5841 * Return value:
5842 * none
5843 **/
5844static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5845 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5846{
5847 int i;
5848 u16 data_len;
b0692dd4 5849 u32 ioasc, fd_ioasc;
96d21f00 5850 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5851 __be32 *ioasa_data = (__be32 *)ioasa;
5852 int error_index;
5853
96d21f00
WB		 5854 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5855 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5856
5857 if (0 == ioasc)
5858 return;
5859
5860 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5861 return;
5862
b0692dd4
BK		 5863 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5864 error_index = ipr_get_error(fd_ioasc);
5865 else
5866 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5867
5868 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5869 /* Don't log an error if the IOA already logged one */
96d21f00 5870 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5871 return;
5872
cc9bd5d4
BK		 5873 if (!ipr_is_gscsi(res))
5874 return;
5875
1da177e4
LT		 5876 if (ipr_error_table[error_index].log_ioasa == 0)
5877 return;
5878 }
5879
fe964d0a 5880 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5881
96d21f00
WB		 5882 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5883 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5884 data_len = sizeof(struct ipr_ioasa64);
5885 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5886 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5887
5888 ipr_err("IOASA Dump:\n");
5889
5890 for (i = 0; i < data_len / 4; i += 4) {
5891 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5892 be32_to_cpu(ioasa_data[i]),
5893 be32_to_cpu(ioasa_data[i+1]),
5894 be32_to_cpu(ioasa_data[i+2]),
5895 be32_to_cpu(ioasa_data[i+3]));
5896 }
5897}
5898
5899/**
5900 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5901 * @ioasa: IOASA
5902 * @sense_buf: sense data buffer
5903 *
5904 * Return value:
5905 * none
5906 **/
5907static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5908{
5909 u32 failing_lba;
5910 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5911 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5912 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5913 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5914
5915 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5916
5917 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5918 return;
5919
5920 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5921
5922 if (ipr_is_vset_device(res) &&
5923 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5924 ioasa->u.vset.failing_lba_hi != 0) {
5925 sense_buf[0] = 0x72;
5926 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5927 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5928 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5929
5930 sense_buf[7] = 12;
5931 sense_buf[8] = 0;
5932 sense_buf[9] = 0x0A;
5933 sense_buf[10] = 0x80;
5934
5935 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5936
5937 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5938 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5939 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5940 sense_buf[15] = failing_lba & 0x000000ff;
5941
5942 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5943
5944 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5945 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5946 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5947 sense_buf[19] = failing_lba & 0x000000ff;
5948 } else {
5949 sense_buf[0] = 0x70;
5950 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5951 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5952 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5953
5954 /* Illegal request */
5955 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5956 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5957 sense_buf[7] = 10; /* additional length */
5958
5959 /* IOARCB was in error */
5960 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5961 sense_buf[15] = 0xC0;
5962 else /* Parameter data was invalid */
5963 sense_buf[15] = 0x80;
5964
5965 sense_buf[16] =
5966 ((IPR_FIELD_POINTER_MASK &
96d21f00 5967 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5968 sense_buf[17] =
5969 (IPR_FIELD_POINTER_MASK &
96d21f00 5970 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5971 } else {
5972 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5973 if (ipr_is_vset_device(res))
5974 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5975 else
5976 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5977
5978 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5979 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5980 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5981 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5982 sense_buf[6] = failing_lba & 0x000000ff;
5983 }
5984
5985 sense_buf[7] = 6; /* additional length */
5986 }
5987 }
5988}
5989
ee0a90fa
BK		 5990/**
5991 * ipr_get_autosense - Copy autosense data to sense buffer
5992 * @ipr_cmd: ipr command struct
5993 *
5994 * This function copies the autosense buffer to the buffer
5995 * in the scsi_cmd, if there is autosense available.
5996 *
5997 * Return value:
5998 * 1 if autosense was available / 0 if not
5999 **/
6000static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
6001{
96d21f00
WB		 6002 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
6003 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 6004
96d21f00 6005 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 6006 return 0;
6007
96d21f00
WB		 6008 if (ipr_cmd->ioa_cfg->sis64)
6009 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
6010 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
6011 SCSI_SENSE_BUFFERSIZE));
6012 else
6013 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
6014 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
6015 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 6016 return 1;
6017}
6018
1da177e4
LT		 6019/**
6020 * ipr_erp_start - Process an error response for a SCSI op
6021 * @ioa_cfg: ioa config struct
6022 * @ipr_cmd: ipr command struct
6023 *
6024 * This function determines whether or not to initiate ERP
6025 * on the affected device.
6026 *
6027 * Return value:
6028 * nothing
6029 **/
6030static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
6031 struct ipr_cmnd *ipr_cmd)
6032{
6033 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6034 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6035 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6036 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6037
6038 if (!res) {
6039 ipr_scsi_eh_done(ipr_cmd);
6040 return;
6041 }
6042
8a048994 6043 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6044 ipr_gen_sense(ipr_cmd);
6045
cc9bd5d4
BK		 6046 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6047
8a048994 6048 switch (masked_ioasc) {
1da177e4 6049 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 6050 if (ipr_is_naca_model(res))
6051 scsi_cmd->result |= (DID_ABORT << 16);
6052 else
6053 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6054 break;
6055 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6056 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6057 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6058 break;
6059 case IPR_IOASC_HW_SEL_TIMEOUT:
6060 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 6061 if (!ipr_is_naca_model(res))
6062 res->needs_sync_complete = 1;
1da177e4
LT		 6063 break;
6064 case IPR_IOASC_SYNC_REQUIRED:
6065 if (!res->in_erp)
6066 res->needs_sync_complete = 1;
6067 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6068 break;
6069 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6070 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6071 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6072 break;
6073 case IPR_IOASC_BUS_WAS_RESET:
6074 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6075 /*
6076 * Report the bus reset and ask for a retry. The device
6077 * will give CC/UA the next command.
6078 */
6079 if (!res->resetting_device)
6080 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6081 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 6082 if (!ipr_is_naca_model(res))
6083 res->needs_sync_complete = 1;
1da177e4
LT		 6084 break;
6085 case IPR_IOASC_HW_DEV_BUS_STATUS:
6086 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6087 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 6088 if (!ipr_get_autosense(ipr_cmd)) {
6089 if (!ipr_is_naca_model(res)) {
6090 ipr_erp_cancel_all(ipr_cmd);
6091 return;
6092 }
6093 }
1da177e4 6094 }
ee0a90fa
BK		 6095 if (!ipr_is_naca_model(res))
6096 res->needs_sync_complete = 1;
1da177e4
LT		 6097 break;
6098 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6099 break;
6100 default:
5b7304fb
BK		 6101 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6102 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6103 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6104 res->needs_sync_complete = 1;
6105 break;
6106 }
6107
63015bc9 6108 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6109 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6110 scsi_cmd->scsi_done(scsi_cmd);
6111}
6112
6113/**
6114 * ipr_scsi_done - mid-layer done function
6115 * @ipr_cmd: ipr command struct
6116 *
6117 * This function is invoked by the interrupt handler for
6118 * ops generated by the SCSI mid-layer
6119 *
6120 * Return value:
6121 * none
6122 **/
6123static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6124{
6125 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6126 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6127 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 6128 unsigned long hrrq_flags;
1da177e4 6129
96d21f00 6130 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6131
6132 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6133 scsi_dma_unmap(scsi_cmd);
6134
56d6aa33 6135 spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
05a6538a 6136 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6137 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6138 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
172cd6e1 6139 } else {
56d6aa33 6140 spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
1da177e4 6141 ipr_erp_start(ioa_cfg, ipr_cmd);
56d6aa33 6142 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
172cd6e1 6143 }
1da177e4
LT		 6144}
6145
1da177e4
LT		 6146/**
6147 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6148 * @shost: scsi host struct
1da177e4 6149 * @scsi_cmd: scsi command struct
1da177e4
LT		 6150 *
6151 * This function queues a request generated by the mid-layer.
6152 *
6153 * Return value:
6154 * 0 on success
6155 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6156 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6157 **/
00bfef2c
BK		 6158static int ipr_queuecommand(struct Scsi_Host *shost,
6159 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6160{
6161 struct ipr_ioa_cfg *ioa_cfg;
6162 struct ipr_resource_entry *res;
6163 struct ipr_ioarcb *ioarcb;
6164 struct ipr_cmnd *ipr_cmd;
56d6aa33 6165 unsigned long hrrq_flags, lock_flags;
d12f1576 6166 int rc;
05a6538a 6167 struct ipr_hrr_queue *hrrq;
6168 int hrrq_id;
1da177e4 6169
00bfef2c
BK		 6170 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6171
1da177e4 6172 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6173 res = scsi_cmd->device->hostdata;
56d6aa33 6174
6175 if (ipr_is_gata(res) && res->sata_port) {
6176 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6177 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6178 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6179 return rc;
6180 }
6181
05a6538a 6182 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6183 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6184
56d6aa33 6185 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6186 /*
6187 * We are currently blocking all devices due to a host reset
6188 * We have told the host to stop giving us new requests, but
6189 * ERP ops don't count. FIXME
6190 */
bfae7820 6191 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6192 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6193 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6194 }
1da177e4
LT		 6195
6196 /*
6197 * FIXME - Create scsi_set_host_offline interface
6198 * and the ioa_is_dead check can be removed
6199 */
bfae7820 6200 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6201 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6202 goto err_nodev;
1da177e4
LT		 6203 }
6204
05a6538a 6205 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6206 if (ipr_cmd == NULL) {
56d6aa33 6207 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6208 return SCSI_MLQUEUE_HOST_BUSY;
6209 }
56d6aa33 6210 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6211
172cd6e1 6212 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6213 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6214
6215 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6216 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6217 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4
LT		 6218
6219 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6220 if (scsi_cmd->underflow == 0)
6221 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6222
1da177e4 6223 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
0b1f8d44
WX		 6224 if (ipr_is_gscsi(res) && res->reset_occurred) {
6225 res->reset_occurred = 0;
ab6c10b1 6226 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6227 }
1da177e4
LT		 6228 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
6229 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
6230 }
6231
6232 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6233 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6234 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6235 }
1da177e4 6236
d12f1576
DC		 6237 if (ioa_cfg->sis64)
6238 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6239 else
6240 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6241
56d6aa33 6242 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6243 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6244 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6245 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6246 if (!rc)
6247 scsi_dma_unmap(scsi_cmd);
a5fb407e 6248 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6249 }
6250
56d6aa33 6251 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6252 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6253 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6254 scsi_dma_unmap(scsi_cmd);
6255 goto err_nodev;
6256 }
6257
6258 ioarcb->res_handle = res->res_handle;
6259 if (res->needs_sync_complete) {
6260 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6261 res->needs_sync_complete = 0;
6262 }
05a6538a 6263 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6264 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6265 ipr_send_command(ipr_cmd);
56d6aa33 6266 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6267 return 0;
1da177e4 6268
00bfef2c 6269err_nodev:
56d6aa33 6270 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6271 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6272 scsi_cmd->result = (DID_NO_CONNECT << 16);
6273 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6274 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6275 return 0;
6276}
f281233d 6277
35a39691
BK		 6278/**
6279 * ipr_ioctl - IOCTL handler
6280 * @sdev: scsi device struct
6281 * @cmd: IOCTL cmd
6282 * @arg: IOCTL arg
6283 *
6284 * Return value:
6285 * 0 on success / other on failure
6286 **/
bd705f2d 6287static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6288{
6289 struct ipr_resource_entry *res;
6290
6291 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6292 if (res && ipr_is_gata(res)) {
6293 if (cmd == HDIO_GET_IDENTITY)
6294 return -ENOTTY;
94be9a58 6295 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6296 }
35a39691
BK		 6297
6298 return -EINVAL;
6299}
6300
1da177e4
LT		 6301/**
6302 * ipr_info - Get information about the card/driver
6303 * @scsi_host: scsi host struct
6304 *
6305 * Return value:
6306 * pointer to buffer with description string
6307 **/
203fa3fe 6308static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6309{
6310 static char buffer[512];
6311 struct ipr_ioa_cfg *ioa_cfg;
6312 unsigned long lock_flags = 0;
6313
6314 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6315
6316 spin_lock_irqsave(host->host_lock, lock_flags);
6317 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6318 spin_unlock_irqrestore(host->host_lock, lock_flags);
6319
6320 return buffer;
6321}
6322
6323static struct scsi_host_template driver_template = {
6324 .module = THIS_MODULE,
6325 .name = "IPR",
6326 .info = ipr_ioa_info,
35a39691 6327 .ioctl = ipr_ioctl,
1da177e4
LT		 6328 .queuecommand = ipr_queuecommand,
6329 .eh_abort_handler = ipr_eh_abort,
6330 .eh_device_reset_handler = ipr_eh_dev_reset,
6331 .eh_host_reset_handler = ipr_eh_host_reset,
6332 .slave_alloc = ipr_slave_alloc,
6333 .slave_configure = ipr_slave_configure,
6334 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 6335 .target_alloc = ipr_target_alloc,
6336 .target_destroy = ipr_target_destroy,
1da177e4
LT		 6337 .change_queue_depth = ipr_change_queue_depth,
6338 .change_queue_type = ipr_change_queue_type,
6339 .bios_param = ipr_biosparam,
6340 .can_queue = IPR_MAX_COMMANDS,
6341 .this_id = -1,
6342 .sg_tablesize = IPR_MAX_SGLIST,
6343 .max_sectors = IPR_IOA_MAX_SECTORS,
6344 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6345 .use_clustering = ENABLE_CLUSTERING,
6346 .shost_attrs = ipr_ioa_attrs,
6347 .sdev_attrs = ipr_dev_attrs,
54b2b50c
MP		 6348 .proc_name = IPR_NAME,
6349 .no_write_same = 1,
1da177e4
LT		 6350};
6351
35a39691
BK		 6352/**
6353 * ipr_ata_phy_reset - libata phy_reset handler
6354 * @ap: ata port to reset
6355 *
6356 **/
6357static void ipr_ata_phy_reset(struct ata_port *ap)
6358{
6359 unsigned long flags;
6360 struct ipr_sata_port *sata_port = ap->private_data;
6361 struct ipr_resource_entry *res = sata_port->res;
6362 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6363 int rc;
6364
6365 ENTER;
6366 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6367 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6368 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6369 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6370 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6371 }
6372
56d6aa33 6373 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6374 goto out_unlock;
6375
6376 rc = ipr_device_reset(ioa_cfg, res);
6377
6378 if (rc) {
3e4ec344 6379 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6380 goto out_unlock;
6381 }
6382
3e7ebdfa
WB		 6383 ap->link.device[0].class = res->ata_class;
6384 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6385 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6386
6387out_unlock:
6388 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6389 LEAVE;
6390}
6391
6392/**
6393 * ipr_ata_post_internal - Cleanup after an internal command
6394 * @qc: ATA queued command
6395 *
6396 * Return value:
6397 * none
6398 **/
6399static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6400{
6401 struct ipr_sata_port *sata_port = qc->ap->private_data;
6402 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6403 struct ipr_cmnd *ipr_cmd;
05a6538a 6404 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6405 unsigned long flags;
6406
6407 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6408 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6409 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6410 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6411 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6412 }
6413
05a6538a 6414 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6415 spin_lock(&hrrq->_lock);
05a6538a 6416 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6417 if (ipr_cmd->qc == qc) {
6418 ipr_device_reset(ioa_cfg, sata_port->res);
6419 break;
6420 }
35a39691 6421 }
56d6aa33 6422 spin_unlock(&hrrq->_lock);
35a39691
BK		 6423 }
6424 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6425}
6426
35a39691
BK		 6427/**
6428 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6429 * @regs: destination
6430 * @tf: source ATA taskfile
6431 *
6432 * Return value:
6433 * none
6434 **/
6435static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6436 struct ata_taskfile *tf)
6437{
6438 regs->feature = tf->feature;
6439 regs->nsect = tf->nsect;
6440 regs->lbal = tf->lbal;
6441 regs->lbam = tf->lbam;
6442 regs->lbah = tf->lbah;
6443 regs->device = tf->device;
6444 regs->command = tf->command;
6445 regs->hob_feature = tf->hob_feature;
6446 regs->hob_nsect = tf->hob_nsect;
6447 regs->hob_lbal = tf->hob_lbal;
6448 regs->hob_lbam = tf->hob_lbam;
6449 regs->hob_lbah = tf->hob_lbah;
6450 regs->ctl = tf->ctl;
6451}
6452
6453/**
6454 * ipr_sata_done - done function for SATA commands
6455 * @ipr_cmd: ipr command struct
6456 *
6457 * This function is invoked by the interrupt handler for
6458 * ops generated by the SCSI mid-layer to SATA devices
6459 *
6460 * Return value:
6461 * none
6462 **/
6463static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6464{
6465 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6466 struct ata_queued_cmd *qc = ipr_cmd->qc;
6467 struct ipr_sata_port *sata_port = qc->ap->private_data;
6468 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6469 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6470
56d6aa33 6471 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6472 if (ipr_cmd->ioa_cfg->sis64)
6473 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6474 sizeof(struct ipr_ioasa_gata));
6475 else
6476 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6477 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6478 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6479
96d21f00 6480 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6481 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6482
6483 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6484 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6485 else
96d21f00 6486 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6487 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6488 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6489 ata_qc_complete(qc);
6490}
6491
a32c055f
WB		 6492/**
6493 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6494 * @ipr_cmd: ipr command struct
6495 * @qc: ATA queued command
6496 *
6497 **/
6498static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6499 struct ata_queued_cmd *qc)
6500{
6501 u32 ioadl_flags = 0;
6502 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6503 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6504 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6505 int len = qc->nbytes;
6506 struct scatterlist *sg;
6507 unsigned int si;
6508 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6509
6510 if (len == 0)
6511 return;
6512
6513 if (qc->dma_dir == DMA_TO_DEVICE) {
6514 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6515 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6516 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6517 ioadl_flags = IPR_IOADL_FLAGS_READ;
6518
6519 ioarcb->data_transfer_length = cpu_to_be32(len);
6520 ioarcb->ioadl_len =
6521 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6522 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6523 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6524
6525 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6526 ioadl64->flags = cpu_to_be32(ioadl_flags);
6527 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6528 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6529
6530 last_ioadl64 = ioadl64;
6531 ioadl64++;
6532 }
6533
6534 if (likely(last_ioadl64))
6535 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6536}
6537
35a39691
BK		 6538/**
6539 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6540 * @ipr_cmd: ipr command struct
6541 * @qc: ATA queued command
6542 *
6543 **/
6544static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6545 struct ata_queued_cmd *qc)
6546{
6547 u32 ioadl_flags = 0;
6548 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6549 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6550 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6551 int len = qc->nbytes;
35a39691 6552 struct scatterlist *sg;
ff2aeb1e 6553 unsigned int si;
35a39691
BK		 6554
6555 if (len == 0)
6556 return;
6557
6558 if (qc->dma_dir == DMA_TO_DEVICE) {
6559 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6560 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6561 ioarcb->data_transfer_length = cpu_to_be32(len);
6562 ioarcb->ioadl_len =
35a39691
BK		 6563 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6564 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6565 ioadl_flags = IPR_IOADL_FLAGS_READ;
6566 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6567 ioarcb->read_ioadl_len =
6568 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6569 }
6570
ff2aeb1e 6571 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6572 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6573 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6574
6575 last_ioadl = ioadl;
6576 ioadl++;
35a39691 6577 }
3be6cbd7
JG		 6578
6579 if (likely(last_ioadl))
6580 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6581}
6582
56d6aa33 6583/**
6584 * ipr_qc_defer - Get a free ipr_cmd
6585 * @qc: queued command
6586 *
6587 * Return value:
6588 * 0 if success
6589 **/
6590static int ipr_qc_defer(struct ata_queued_cmd *qc)
6591{
6592 struct ata_port *ap = qc->ap;
6593 struct ipr_sata_port *sata_port = ap->private_data;
6594 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6595 struct ipr_cmnd *ipr_cmd;
6596 struct ipr_hrr_queue *hrrq;
6597 int hrrq_id;
6598
6599 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6600 hrrq = &ioa_cfg->hrrq[hrrq_id];
6601
6602 qc->lldd_task = NULL;
6603 spin_lock(&hrrq->_lock);
6604 if (unlikely(hrrq->ioa_is_dead)) {
6605 spin_unlock(&hrrq->_lock);
6606 return 0;
6607 }
6608
6609 if (unlikely(!hrrq->allow_cmds)) {
6610 spin_unlock(&hrrq->_lock);
6611 return ATA_DEFER_LINK;
6612 }
6613
6614 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6615 if (ipr_cmd == NULL) {
6616 spin_unlock(&hrrq->_lock);
6617 return ATA_DEFER_LINK;
6618 }
6619
6620 qc->lldd_task = ipr_cmd;
6621 spin_unlock(&hrrq->_lock);
6622 return 0;
6623}
6624
35a39691
BK		 6625/**
6626 * ipr_qc_issue - Issue a SATA qc to a device
6627 * @qc: queued command
6628 *
6629 * Return value:
6630 * 0 if success
6631 **/
6632static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6633{
6634 struct ata_port *ap = qc->ap;
6635 struct ipr_sata_port *sata_port = ap->private_data;
6636 struct ipr_resource_entry *res = sata_port->res;
6637 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6638 struct ipr_cmnd *ipr_cmd;
6639 struct ipr_ioarcb *ioarcb;
6640 struct ipr_ioarcb_ata_regs *regs;
6641
56d6aa33 6642 if (qc->lldd_task == NULL)
6643 ipr_qc_defer(qc);
6644
6645 ipr_cmd = qc->lldd_task;
6646 if (ipr_cmd == NULL)
0feeed82 6647 return AC_ERR_SYSTEM;
35a39691 6648
56d6aa33 6649 qc->lldd_task = NULL;
6650 spin_lock(&ipr_cmd->hrrq->_lock);
6651 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6652 ipr_cmd->hrrq->ioa_is_dead)) {
6653 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6654 spin_unlock(&ipr_cmd->hrrq->_lock);
6655 return AC_ERR_SYSTEM;
6656 }
6657
05a6538a 6658 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6659 ioarcb = &ipr_cmd->ioarcb;
35a39691 6660
a32c055f
WB		 6661 if (ioa_cfg->sis64) {
6662 regs = &ipr_cmd->i.ata_ioadl.regs;
6663 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6664 } else
6665 regs = &ioarcb->u.add_data.u.regs;
6666
6667 memset(regs, 0, sizeof(*regs));
6668 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6669
56d6aa33 6670 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6671 ipr_cmd->qc = qc;
6672 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6673 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6674 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6675 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6676 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6677 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6678
a32c055f
WB		 6679 if (ioa_cfg->sis64)
6680 ipr_build_ata_ioadl64(ipr_cmd, qc);
6681 else
6682 ipr_build_ata_ioadl(ipr_cmd, qc);
6683
35a39691
BK		 6684 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6685 ipr_copy_sata_tf(regs, &qc->tf);
6686 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6687 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6688
6689 switch (qc->tf.protocol) {
6690 case ATA_PROT_NODATA:
6691 case ATA_PROT_PIO:
6692 break;
6693
6694 case ATA_PROT_DMA:
6695 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6696 break;
6697
0dc36888
TH		 6698 case ATAPI_PROT_PIO:
6699 case ATAPI_PROT_NODATA:
35a39691
BK		 6700 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6701 break;
6702
0dc36888 6703 case ATAPI_PROT_DMA:
35a39691
BK		 6704 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6705 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6706 break;
6707
6708 default:
6709 WARN_ON(1);
56d6aa33 6710 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6711 return AC_ERR_INVALID;
35a39691
BK		 6712 }
6713
a32c055f 6714 ipr_send_command(ipr_cmd);
56d6aa33 6715 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6716
35a39691
BK		 6717 return 0;
6718}
6719
4c9bf4e7
TH		 6720/**
6721 * ipr_qc_fill_rtf - Read result TF
6722 * @qc: ATA queued command
6723 *
6724 * Return value:
6725 * true
6726 **/
6727static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6728{
6729 struct ipr_sata_port *sata_port = qc->ap->private_data;
6730 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6731 struct ata_taskfile *tf = &qc->result_tf;
6732
6733 tf->feature = g->error;
6734 tf->nsect = g->nsect;
6735 tf->lbal = g->lbal;
6736 tf->lbam = g->lbam;
6737 tf->lbah = g->lbah;
6738 tf->device = g->device;
6739 tf->command = g->status;
6740 tf->hob_nsect = g->hob_nsect;
6741 tf->hob_lbal = g->hob_lbal;
6742 tf->hob_lbam = g->hob_lbam;
6743 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6744
6745 return true;
6746}
6747
35a39691 6748static struct ata_port_operations ipr_sata_ops = {
35a39691 6749 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6750 .hardreset = ipr_sata_reset,
35a39691 6751 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6752 .qc_prep = ata_noop_qc_prep,
56d6aa33 6753 .qc_defer = ipr_qc_defer,
35a39691 6754 .qc_issue = ipr_qc_issue,
4c9bf4e7 6755 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6756 .port_start = ata_sas_port_start,
6757 .port_stop = ata_sas_port_stop
6758};
6759
6760static struct ata_port_info sata_port_info = {
9cbe056f 6761 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
0f2e0330
SS		 6762 .pio_mask = ATA_PIO4_ONLY,
6763 .mwdma_mask = ATA_MWDMA2,
6764 .udma_mask = ATA_UDMA6,
35a39691
BK		 6765 .port_ops = &ipr_sata_ops
6766};
6767
1da177e4
LT		 6768#ifdef CONFIG_PPC_PSERIES
6769static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6770 PVR_NORTHSTAR,
6771 PVR_PULSAR,
6772 PVR_POWER4,
6773 PVR_ICESTAR,
6774 PVR_SSTAR,
6775 PVR_POWER4p,
6776 PVR_630,
6777 PVR_630p
1da177e4
LT		 6778};
6779
6780/**
6781 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6782 * @ioa_cfg: ioa cfg struct
6783 *
6784 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6785 * certain pSeries hardware. This function determines if the given
6786 * adapter is in one of these confgurations or not.
6787 *
6788 * Return value:
6789 * 1 if adapter is not supported / 0 if adapter is supported
6790 **/
6791static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6792{
1da177e4
LT		 6793 int i;
6794
44c10138 6795 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6796 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6797 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6798 return 1;
1da177e4
LT		 6799 }
6800 }
6801 return 0;
6802}
6803#else
6804#define ipr_invalid_adapter(ioa_cfg) 0
6805#endif
6806
6807/**
6808 * ipr_ioa_bringdown_done - IOA bring down completion.
6809 * @ipr_cmd: ipr command struct
6810 *
6811 * This function processes the completion of an adapter bring down.
6812 * It wakes any reset sleepers.
6813 *
6814 * Return value:
6815 * IPR_RC_JOB_RETURN
6816 **/
6817static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6818{
6819 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6820 int i;
1da177e4
LT		 6821
6822 ENTER;
bfae7820
BK		 6823 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6824 ipr_trace;
6825 spin_unlock_irq(ioa_cfg->host->host_lock);
6826 scsi_unblock_requests(ioa_cfg->host);
6827 spin_lock_irq(ioa_cfg->host->host_lock);
6828 }
6829
1da177e4
LT		 6830 ioa_cfg->in_reset_reload = 0;
6831 ioa_cfg->reset_retries = 0;
96b04db9 6832 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6833 spin_lock(&ioa_cfg->hrrq[i]._lock);
6834 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6835 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6836 }
6837 wmb();
6838
05a6538a 6839 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6840 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 6841 LEAVE;
6842
6843 return IPR_RC_JOB_RETURN;
6844}
6845
6846/**
6847 * ipr_ioa_reset_done - IOA reset completion.
6848 * @ipr_cmd: ipr command struct
6849 *
6850 * This function processes the completion of an adapter reset.
6851 * It schedules any necessary mid-layer add/removes and
6852 * wakes any reset sleepers.
6853 *
6854 * Return value:
6855 * IPR_RC_JOB_RETURN
6856 **/
6857static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6858{
6859 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6860 struct ipr_resource_entry *res;
6861 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 6862 int i = 0, j;
1da177e4
LT		 6863
6864 ENTER;
6865 ioa_cfg->in_reset_reload = 0;
56d6aa33 6866 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
6867 spin_lock(&ioa_cfg->hrrq[j]._lock);
6868 ioa_cfg->hrrq[j].allow_cmds = 1;
6869 spin_unlock(&ioa_cfg->hrrq[j]._lock);
6870 }
6871 wmb();
1da177e4 6872 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6873 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6874
6875 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6876 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6877 ipr_trace;
6878 break;
6879 }
6880 }
6881 schedule_work(&ioa_cfg->work_q);
6882
6883 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6884 list_del(&hostrcb->queue);
6885 if (i++ < IPR_NUM_LOG_HCAMS)
6886 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6887 else
6888 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6889 }
6890
6bb04170 6891 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6892 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6893
6894 ioa_cfg->reset_retries = 0;
05a6538a 6895 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6896 wake_up_all(&ioa_cfg->reset_wait_q);
6897
30237853 6898 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6899 scsi_unblock_requests(ioa_cfg->host);
30237853 6900 spin_lock(ioa_cfg->host->host_lock);
1da177e4 6901
56d6aa33 6902 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 6903 scsi_block_requests(ioa_cfg->host);
6904
6905 LEAVE;
6906 return IPR_RC_JOB_RETURN;
6907}
6908
6909/**
6910 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6911 * @supported_dev: supported device struct
6912 * @vpids: vendor product id struct
6913 *
6914 * Return value:
6915 * none
6916 **/
6917static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6918 struct ipr_std_inq_vpids *vpids)
6919{
6920 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6921 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6922 supported_dev->num_records = 1;
6923 supported_dev->data_length =
6924 cpu_to_be16(sizeof(struct ipr_supported_device));
6925 supported_dev->reserved = 0;
6926}
6927
6928/**
6929 * ipr_set_supported_devs - Send Set Supported Devices for a device
6930 * @ipr_cmd: ipr command struct
6931 *
a32c055f 6932 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6933 *
6934 * Return value:
6935 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6936 **/
6937static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6938{
6939 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6940 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6941 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6942 struct ipr_resource_entry *res = ipr_cmd->u.res;
6943
6944 ipr_cmd->job_step = ipr_ioa_reset_done;
6945
6946 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6947 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6948 continue;
6949
6950 ipr_cmd->u.res = res;
3e7ebdfa 6951 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6952
6953 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6954 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6955 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6956
6957 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6958 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6959 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6960 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6961
a32c055f
WB		 6962 ipr_init_ioadl(ipr_cmd,
6963 ioa_cfg->vpd_cbs_dma +
6964 offsetof(struct ipr_misc_cbs, supp_dev),
6965 sizeof(struct ipr_supported_device),
6966 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6967
6968 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6969 IPR_SET_SUP_DEVICE_TIMEOUT);
6970
3e7ebdfa
WB		 6971 if (!ioa_cfg->sis64)
6972 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 6973 LEAVE;
1da177e4
LT		 6974 return IPR_RC_JOB_RETURN;
6975 }
6976
05a6538a 6977 LEAVE;
1da177e4
LT		 6978 return IPR_RC_JOB_CONTINUE;
6979}
6980
6981/**
6982 * ipr_get_mode_page - Locate specified mode page
6983 * @mode_pages: mode page buffer
6984 * @page_code: page code to find
6985 * @len: minimum required length for mode page
6986 *
6987 * Return value:
6988 * pointer to mode page / NULL on failure
6989 **/
6990static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6991 u32 page_code, u32 len)
6992{
6993 struct ipr_mode_page_hdr *mode_hdr;
6994 u32 page_length;
6995 u32 length;
6996
6997 if (!mode_pages || (mode_pages->hdr.length == 0))
6998 return NULL;
6999
7000 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
7001 mode_hdr = (struct ipr_mode_page_hdr *)
7002 (mode_pages->data + mode_pages->hdr.block_desc_len);
7003
7004 while (length) {
7005 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
7006 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
7007 return mode_hdr;
7008 break;
7009 } else {
7010 page_length = (sizeof(struct ipr_mode_page_hdr) +
7011 mode_hdr->page_length);
7012 length -= page_length;
7013 mode_hdr = (struct ipr_mode_page_hdr *)
7014 ((unsigned long)mode_hdr + page_length);
7015 }
7016 }
7017 return NULL;
7018}
7019
7020/**
7021 * ipr_check_term_power - Check for term power errors
7022 * @ioa_cfg: ioa config struct
7023 * @mode_pages: IOAFP mode pages buffer
7024 *
7025 * Check the IOAFP's mode page 28 for term power errors
7026 *
7027 * Return value:
7028 * nothing
7029 **/
7030static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7031 struct ipr_mode_pages *mode_pages)
7032{
7033 int i;
7034 int entry_length;
7035 struct ipr_dev_bus_entry *bus;
7036 struct ipr_mode_page28 *mode_page;
7037
7038 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7039 sizeof(struct ipr_mode_page28));
7040
7041 entry_length = mode_page->entry_length;
7042
7043 bus = mode_page->bus;
7044
7045 for (i = 0; i < mode_page->num_entries; i++) {
7046 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7047 dev_err(&ioa_cfg->pdev->dev,
7048 "Term power is absent on scsi bus %d\n",
7049 bus->res_addr.bus);
7050 }
7051
7052 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7053 }
7054}
7055
7056/**
7057 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7058 * @ioa_cfg: ioa config struct
7059 *
7060 * Looks through the config table checking for SES devices. If
7061 * the SES device is in the SES table indicating a maximum SCSI
7062 * bus speed, the speed is limited for the bus.
7063 *
7064 * Return value:
7065 * none
7066 **/
7067static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7068{
7069 u32 max_xfer_rate;
7070 int i;
7071
7072 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7073 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7074 ioa_cfg->bus_attr[i].bus_width);
7075
7076 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7077 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7078 }
7079}
7080
7081/**
7082 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7083 * @ioa_cfg: ioa config struct
7084 * @mode_pages: mode page 28 buffer
7085 *
7086 * Updates mode page 28 based on driver configuration
7087 *
7088 * Return value:
7089 * none
7090 **/
7091static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7092 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7093{
7094 int i, entry_length;
7095 struct ipr_dev_bus_entry *bus;
7096 struct ipr_bus_attributes *bus_attr;
7097 struct ipr_mode_page28 *mode_page;
7098
7099 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7100 sizeof(struct ipr_mode_page28));
7101
7102 entry_length = mode_page->entry_length;
7103
7104 /* Loop for each device bus entry */
7105 for (i = 0, bus = mode_page->bus;
7106 i < mode_page->num_entries;
7107 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7108 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7109 dev_err(&ioa_cfg->pdev->dev,
7110 "Invalid resource address reported: 0x%08X\n",
7111 IPR_GET_PHYS_LOC(bus->res_addr));
7112 continue;
7113 }
7114
7115 bus_attr = &ioa_cfg->bus_attr[i];
7116 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7117 bus->bus_width = bus_attr->bus_width;
7118 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7119 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7120 if (bus_attr->qas_enabled)
7121 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7122 else
7123 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7124 }
7125}
7126
7127/**
7128 * ipr_build_mode_select - Build a mode select command
7129 * @ipr_cmd: ipr command struct
7130 * @res_handle: resource handle to send command to
7131 * @parm: Byte 2 of Mode Sense command
7132 * @dma_addr: DMA buffer address
7133 * @xfer_len: data transfer length
7134 *
7135 * Return value:
7136 * none
7137 **/
7138static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7139 __be32 res_handle, u8 parm,
7140 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7141{
1da177e4
LT		 7142 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7143
7144 ioarcb->res_handle = res_handle;
7145 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7146 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7147 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7148 ioarcb->cmd_pkt.cdb[1] = parm;
7149 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7150
a32c055f 7151 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7152}
7153
7154/**
7155 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7156 * @ipr_cmd: ipr command struct
7157 *
7158 * This function sets up the SCSI bus attributes and sends
7159 * a Mode Select for Page 28 to activate them.
7160 *
7161 * Return value:
7162 * IPR_RC_JOB_RETURN
7163 **/
7164static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7165{
7166 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7167 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7168 int length;
7169
7170 ENTER;
4733804c
BK		 7171 ipr_scsi_bus_speed_limit(ioa_cfg);
7172 ipr_check_term_power(ioa_cfg, mode_pages);
7173 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7174 length = mode_pages->hdr.length + 1;
7175 mode_pages->hdr.length = 0;
1da177e4
LT		 7176
7177 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7178 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7179 length);
7180
f72919ec
WB		 7181 ipr_cmd->job_step = ipr_set_supported_devs;
7182 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7183 struct ipr_resource_entry, queue);
1da177e4
LT		 7184 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7185
7186 LEAVE;
7187 return IPR_RC_JOB_RETURN;
7188}
7189
7190/**
7191 * ipr_build_mode_sense - Builds a mode sense command
7192 * @ipr_cmd: ipr command struct
7193 * @res: resource entry struct
7194 * @parm: Byte 2 of mode sense command
7195 * @dma_addr: DMA address of mode sense buffer
7196 * @xfer_len: Size of DMA buffer
7197 *
7198 * Return value:
7199 * none
7200 **/
7201static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7202 __be32 res_handle,
a32c055f 7203 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7204{
1da177e4
LT		 7205 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7206
7207 ioarcb->res_handle = res_handle;
7208 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7209 ioarcb->cmd_pkt.cdb[2] = parm;
7210 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7211 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7212
a32c055f 7213 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7214}
7215
dfed823e
BK		 7216/**
7217 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7218 * @ipr_cmd: ipr command struct
7219 *
7220 * This function handles the failure of an IOA bringup command.
7221 *
7222 * Return value:
7223 * IPR_RC_JOB_RETURN
7224 **/
7225static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7226{
7227 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7228 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7229
7230 dev_err(&ioa_cfg->pdev->dev,
7231 "0x%02X failed with IOASC: 0x%08X\n",
7232 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7233
7234 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7235 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e
BK		 7236 return IPR_RC_JOB_RETURN;
7237}
7238
7239/**
7240 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7241 * @ipr_cmd: ipr command struct
7242 *
7243 * This function handles the failure of a Mode Sense to the IOAFP.
7244 * Some adapters do not handle all mode pages.
7245 *
7246 * Return value:
7247 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7248 **/
7249static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7250{
f72919ec 7251 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7252 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7253
7254 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7255 ipr_cmd->job_step = ipr_set_supported_devs;
7256 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7257 struct ipr_resource_entry, queue);
dfed823e
BK		 7258 return IPR_RC_JOB_CONTINUE;
7259 }
7260
7261 return ipr_reset_cmd_failed(ipr_cmd);
7262}
7263
1da177e4
LT		 7264/**
7265 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7266 * @ipr_cmd: ipr command struct
7267 *
7268 * This function send a Page 28 mode sense to the IOA to
7269 * retrieve SCSI bus attributes.
7270 *
7271 * Return value:
7272 * IPR_RC_JOB_RETURN
7273 **/
7274static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7275{
7276 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7277
7278 ENTER;
7279 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7280 0x28, ioa_cfg->vpd_cbs_dma +
7281 offsetof(struct ipr_misc_cbs, mode_pages),
7282 sizeof(struct ipr_mode_pages));
7283
7284 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7285 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7286
7287 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7288
7289 LEAVE;
7290 return IPR_RC_JOB_RETURN;
7291}
7292
ac09c349
BK		 7293/**
7294 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7295 * @ipr_cmd: ipr command struct
7296 *
7297 * This function enables dual IOA RAID support if possible.
7298 *
7299 * Return value:
7300 * IPR_RC_JOB_RETURN
7301 **/
7302static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7303{
7304 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7305 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7306 struct ipr_mode_page24 *mode_page;
7307 int length;
7308
7309 ENTER;
7310 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7311 sizeof(struct ipr_mode_page24));
7312
7313 if (mode_page)
7314 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7315
7316 length = mode_pages->hdr.length + 1;
7317 mode_pages->hdr.length = 0;
7318
7319 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7320 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7321 length);
7322
7323 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7324 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7325
7326 LEAVE;
7327 return IPR_RC_JOB_RETURN;
7328}
7329
7330/**
7331 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7332 * @ipr_cmd: ipr command struct
7333 *
7334 * This function handles the failure of a Mode Sense to the IOAFP.
7335 * Some adapters do not handle all mode pages.
7336 *
7337 * Return value:
7338 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7339 **/
7340static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7341{
96d21f00 7342 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7343
7344 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7345 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7346 return IPR_RC_JOB_CONTINUE;
7347 }
7348
7349 return ipr_reset_cmd_failed(ipr_cmd);
7350}
7351
7352/**
7353 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7354 * @ipr_cmd: ipr command struct
7355 *
7356 * This function send a mode sense to the IOA to retrieve
7357 * the IOA Advanced Function Control mode page.
7358 *
7359 * Return value:
7360 * IPR_RC_JOB_RETURN
7361 **/
7362static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7363{
7364 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7365
7366 ENTER;
7367 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7368 0x24, ioa_cfg->vpd_cbs_dma +
7369 offsetof(struct ipr_misc_cbs, mode_pages),
7370 sizeof(struct ipr_mode_pages));
7371
7372 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7373 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7374
7375 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7376
7377 LEAVE;
7378 return IPR_RC_JOB_RETURN;
7379}
7380
1da177e4
LT		 7381/**
7382 * ipr_init_res_table - Initialize the resource table
7383 * @ipr_cmd: ipr command struct
7384 *
7385 * This function looks through the existing resource table, comparing
7386 * it with the config table. This function will take care of old/new
7387 * devices and schedule adding/removing them from the mid-layer
7388 * as appropriate.
7389 *
7390 * Return value:
7391 * IPR_RC_JOB_CONTINUE
7392 **/
7393static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7394{
7395 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7396 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7397 struct ipr_config_table_entry_wrapper cfgtew;
7398 int entries, found, flag, i;
1da177e4
LT		 7399 LIST_HEAD(old_res);
7400
7401 ENTER;
3e7ebdfa
WB		 7402 if (ioa_cfg->sis64)
7403 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7404 else
7405 flag = ioa_cfg->u.cfg_table->hdr.flags;
7406
7407 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7408 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7409
7410 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7411 list_move_tail(&res->queue, &old_res);
7412
3e7ebdfa 7413 if (ioa_cfg->sis64)
438b0331 7414 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7415 else
7416 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7417
7418 for (i = 0; i < entries; i++) {
7419 if (ioa_cfg->sis64)
7420 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7421 else
7422 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7423 found = 0;
7424
7425 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7426 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7427 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7428 found = 1;
7429 break;
7430 }
7431 }
7432
7433 if (!found) {
7434 if (list_empty(&ioa_cfg->free_res_q)) {
7435 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7436 break;
7437 }
7438
7439 found = 1;
7440 res = list_entry(ioa_cfg->free_res_q.next,
7441 struct ipr_resource_entry, queue);
7442 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7443 ipr_init_res_entry(res, &cfgtew);
1da177e4 7444 res->add_to_ml = 1;
56115598
WB		 7445 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7446 res->sdev->allow_restart = 1;
1da177e4
LT		 7447
7448 if (found)
3e7ebdfa 7449 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7450 }
7451
7452 list_for_each_entry_safe(res, temp, &old_res, queue) {
7453 if (res->sdev) {
7454 res->del_from_ml = 1;
3e7ebdfa 7455 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7456 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7457 }
7458 }
7459
3e7ebdfa
WB		 7460 list_for_each_entry_safe(res, temp, &old_res, queue) {
7461 ipr_clear_res_target(res);
7462 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7463 }
7464
ac09c349
BK		 7465 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7466 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7467 else
7468 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7469
7470 LEAVE;
7471 return IPR_RC_JOB_CONTINUE;
7472}
7473
7474/**
7475 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7476 * @ipr_cmd: ipr command struct
7477 *
7478 * This function sends a Query IOA Configuration command
7479 * to the adapter to retrieve the IOA configuration table.
7480 *
7481 * Return value:
7482 * IPR_RC_JOB_RETURN
7483 **/
7484static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7485{
7486 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7487 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7488 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7489 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7490
7491 ENTER;
ac09c349
BK		 7492 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7493 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7494 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7495 ucode_vpd->major_release, ucode_vpd->card_type,
7496 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7497 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7498 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7499
7500 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7501 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7502 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7503 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7504
3e7ebdfa 7505 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7506 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7507
7508 ipr_cmd->job_step = ipr_init_res_table;
7509
7510 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7511
7512 LEAVE;
7513 return IPR_RC_JOB_RETURN;
7514}
7515
7516/**
7517 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7518 * @ipr_cmd: ipr command struct
7519 *
7520 * This utility function sends an inquiry to the adapter.
7521 *
7522 * Return value:
7523 * none
7524 **/
7525static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7526 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7527{
7528 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7529
7530 ENTER;
7531 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7532 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7533
7534 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7535 ioarcb->cmd_pkt.cdb[1] = flags;
7536 ioarcb->cmd_pkt.cdb[2] = page;
7537 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7538
a32c055f 7539 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7540
7541 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7542 LEAVE;
7543}
7544
62275040
BK		 7545/**
7546 * ipr_inquiry_page_supported - Is the given inquiry page supported
7547 * @page0: inquiry page 0 buffer
7548 * @page: page code.
7549 *
7550 * This function determines if the specified inquiry page is supported.
7551 *
7552 * Return value:
7553 * 1 if page is supported / 0 if not
7554 **/
7555static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7556{
7557 int i;
7558
7559 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7560 if (page0->page[i] == page)
7561 return 1;
7562
7563 return 0;
7564}
7565
ac09c349
BK		 7566/**
7567 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7568 * @ipr_cmd: ipr command struct
7569 *
7570 * This function sends a Page 0xD0 inquiry to the adapter
7571 * to retrieve adapter capabilities.
7572 *
7573 * Return value:
7574 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7575 **/
7576static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7577{
7578 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7579 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7580 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7581
7582 ENTER;
7583 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7584 memset(cap, 0, sizeof(*cap));
7585
7586 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7587 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7588 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7589 sizeof(struct ipr_inquiry_cap));
7590 return IPR_RC_JOB_RETURN;
7591 }
7592
7593 LEAVE;
7594 return IPR_RC_JOB_CONTINUE;
7595}
7596
1da177e4
LT		 7597/**
7598 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7599 * @ipr_cmd: ipr command struct
7600 *
7601 * This function sends a Page 3 inquiry to the adapter
7602 * to retrieve software VPD information.
7603 *
7604 * Return value:
7605 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7606 **/
7607static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7608{
7609 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7610
7611 ENTER;
7612
ac09c349 7613 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7614
7615 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7616 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7617 sizeof(struct ipr_inquiry_page3));
7618
7619 LEAVE;
7620 return IPR_RC_JOB_RETURN;
7621}
7622
7623/**
7624 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7625 * @ipr_cmd: ipr command struct
7626 *
7627 * This function sends a Page 0 inquiry to the adapter
7628 * to retrieve supported inquiry pages.
7629 *
7630 * Return value:
7631 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7632 **/
7633static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7634{
7635 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7636 char type[5];
7637
7638 ENTER;
7639
7640 /* Grab the type out of the VPD and store it away */
7641 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7642 type[4] = '\0';
7643 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7644
62275040 7645 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7646
62275040
BK		 7647 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7648 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7649 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7650
7651 LEAVE;
7652 return IPR_RC_JOB_RETURN;
7653}
7654
7655/**
7656 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7657 * @ipr_cmd: ipr command struct
7658 *
7659 * This function sends a standard inquiry to the adapter.
7660 *
7661 * Return value:
7662 * IPR_RC_JOB_RETURN
7663 **/
7664static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7665{
7666 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7667
7668 ENTER;
62275040 7669 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7670
7671 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7672 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7673 sizeof(struct ipr_ioa_vpd));
7674
7675 LEAVE;
7676 return IPR_RC_JOB_RETURN;
7677}
7678
7679/**
214777ba 7680 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7681 * @ipr_cmd: ipr command struct
7682 *
7683 * This function send an Identify Host Request Response Queue
7684 * command to establish the HRRQ with the adapter.
7685 *
7686 * Return value:
7687 * IPR_RC_JOB_RETURN
7688 **/
214777ba 7689static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7690{
7691 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7692 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7693 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7694
7695 ENTER;
05a6538a 7696 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7697 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7698
56d6aa33 7699 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7700 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7701
05a6538a 7702 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7703 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7704
05a6538a 7705 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7706 if (ioa_cfg->sis64)
7707 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7708
05a6538a 7709 if (ioa_cfg->nvectors == 1)
7710 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7711 else
7712 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7713
7714 ioarcb->cmd_pkt.cdb[2] =
7715 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7716 ioarcb->cmd_pkt.cdb[3] =
7717 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7718 ioarcb->cmd_pkt.cdb[4] =
7719 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7720 ioarcb->cmd_pkt.cdb[5] =
7721 ((u64) hrrq->host_rrq_dma) & 0xff;
7722 ioarcb->cmd_pkt.cdb[7] =
7723 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7724 ioarcb->cmd_pkt.cdb[8] =
7725 (sizeof(u32) * hrrq->size) & 0xff;
7726
7727 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7728 ioarcb->cmd_pkt.cdb[9] =
7729 ioa_cfg->identify_hrrq_index;
1da177e4 7730
05a6538a 7731 if (ioa_cfg->sis64) {
7732 ioarcb->cmd_pkt.cdb[10] =
7733 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7734 ioarcb->cmd_pkt.cdb[11] =
7735 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7736 ioarcb->cmd_pkt.cdb[12] =
7737 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7738 ioarcb->cmd_pkt.cdb[13] =
7739 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
7740 }
7741
7742 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7743 ioarcb->cmd_pkt.cdb[14] =
7744 ioa_cfg->identify_hrrq_index;
05a6538a 7745
7746 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7747 IPR_INTERNAL_TIMEOUT);
7748
56d6aa33 7749 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
7750 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 7751
7752 LEAVE;
7753 return IPR_RC_JOB_RETURN;
05a6538a 7754 }
7755
1da177e4 7756 LEAVE;
05a6538a 7757 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7758}
7759
7760/**
7761 * ipr_reset_timer_done - Adapter reset timer function
7762 * @ipr_cmd: ipr command struct
7763 *
7764 * Description: This function is used in adapter reset processing
7765 * for timing events. If the reset_cmd pointer in the IOA
7766 * config struct is not this adapter's we are doing nested
7767 * resets and fail_all_ops will take care of freeing the
7768 * command block.
7769 *
7770 * Return value:
7771 * none
7772 **/
7773static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7774{
7775 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7776 unsigned long lock_flags = 0;
7777
7778 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7779
7780 if (ioa_cfg->reset_cmd == ipr_cmd) {
7781 list_del(&ipr_cmd->queue);
7782 ipr_cmd->done(ipr_cmd);
7783 }
7784
7785 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7786}
7787
7788/**
7789 * ipr_reset_start_timer - Start a timer for adapter reset job
7790 * @ipr_cmd: ipr command struct
7791 * @timeout: timeout value
7792 *
7793 * Description: This function is used in adapter reset processing
7794 * for timing events. If the reset_cmd pointer in the IOA
7795 * config struct is not this adapter's we are doing nested
7796 * resets and fail_all_ops will take care of freeing the
7797 * command block.
7798 *
7799 * Return value:
7800 * none
7801 **/
7802static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7803 unsigned long timeout)
7804{
05a6538a 7805
7806 ENTER;
7807 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7808 ipr_cmd->done = ipr_reset_ioa_job;
7809
7810 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7811 ipr_cmd->timer.expires = jiffies + timeout;
7812 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7813 add_timer(&ipr_cmd->timer);
7814}
7815
7816/**
7817 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7818 * @ioa_cfg: ioa cfg struct
7819 *
7820 * Return value:
7821 * nothing
7822 **/
7823static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7824{
05a6538a 7825 struct ipr_hrr_queue *hrrq;
1da177e4 7826
05a6538a 7827 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 7828 spin_lock(&hrrq->_lock);
05a6538a 7829 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
7830
7831 /* Initialize Host RRQ pointers */
7832 hrrq->hrrq_start = hrrq->host_rrq;
7833 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
7834 hrrq->hrrq_curr = hrrq->hrrq_start;
7835 hrrq->toggle_bit = 1;
56d6aa33 7836 spin_unlock(&hrrq->_lock);
05a6538a 7837 }
56d6aa33 7838 wmb();
05a6538a 7839
56d6aa33 7840 ioa_cfg->identify_hrrq_index = 0;
7841 if (ioa_cfg->hrrq_num == 1)
7842 atomic_set(&ioa_cfg->hrrq_index, 0);
7843 else
7844 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 7845
7846 /* Zero out config table */
3e7ebdfa 7847 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7848}
7849
214777ba
WB		 7850/**
7851 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7852 * @ipr_cmd: ipr command struct
7853 *
7854 * Return value:
7855 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7856 **/
7857static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7858{
7859 unsigned long stage, stage_time;
7860 u32 feedback;
7861 volatile u32 int_reg;
7862 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7863 u64 maskval = 0;
7864
7865 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7866 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7867 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7868
7869 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7870
7871 /* sanity check the stage_time value */
438b0331
WB		 7872 if (stage_time == 0)
7873 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7874 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7875 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7876 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7877 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7878
7879 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7880 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7881 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7882 stage_time = ioa_cfg->transop_timeout;
7883 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7884 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7885 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7886 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7887 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7888 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7889 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7890 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7891 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7892 return IPR_RC_JOB_CONTINUE;
7893 }
214777ba
WB		 7894 }
7895
7896 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7897 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7898 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7899 ipr_cmd->done = ipr_reset_ioa_job;
7900 add_timer(&ipr_cmd->timer);
05a6538a 7901
7902 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 7903
7904 return IPR_RC_JOB_RETURN;
7905}
7906
1da177e4
LT		 7907/**
7908 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7909 * @ipr_cmd: ipr command struct
7910 *
7911 * This function reinitializes some control blocks and
7912 * enables destructive diagnostics on the adapter.
7913 *
7914 * Return value:
7915 * IPR_RC_JOB_RETURN
7916 **/
7917static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7918{
7919 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7920 volatile u32 int_reg;
7be96900 7921 volatile u64 maskval;
56d6aa33 7922 int i;
1da177e4
LT		 7923
7924 ENTER;
214777ba 7925 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7926 ipr_init_ioa_mem(ioa_cfg);
7927
56d6aa33 7928 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7929 spin_lock(&ioa_cfg->hrrq[i]._lock);
7930 ioa_cfg->hrrq[i].allow_interrupts = 1;
7931 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7932 }
7933 wmb();
8701f185
WB		 7934 if (ioa_cfg->sis64) {
7935 /* Set the adapter to the correct endian mode. */
7936 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7937 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7938 }
7939
7be96900 7940 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7941
7942 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7943 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7944 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7945 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7946 return IPR_RC_JOB_CONTINUE;
7947 }
7948
7949 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7950 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7951
7be96900
WB		 7952 if (ioa_cfg->sis64) {
7953 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7954 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7955 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7956 } else
7957 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7958
1da177e4
LT		 7959 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7960
7961 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7962
214777ba
WB		 7963 if (ioa_cfg->sis64) {
7964 ipr_cmd->job_step = ipr_reset_next_stage;
7965 return IPR_RC_JOB_CONTINUE;
7966 }
7967
1da177e4 7968 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7969 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7970 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7971 ipr_cmd->done = ipr_reset_ioa_job;
7972 add_timer(&ipr_cmd->timer);
05a6538a 7973 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7974
7975 LEAVE;
7976 return IPR_RC_JOB_RETURN;
7977}
7978
7979/**
7980 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7981 * @ipr_cmd: ipr command struct
7982 *
7983 * This function is invoked when an adapter dump has run out
7984 * of processing time.
7985 *
7986 * Return value:
7987 * IPR_RC_JOB_CONTINUE
7988 **/
7989static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7990{
7991 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7992
7993 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 7994 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7995 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 7996 ioa_cfg->sdt_state = ABORT_DUMP;
7997
4c647e90 7998 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 7999 ipr_cmd->job_step = ipr_reset_alert;
8000
8001 return IPR_RC_JOB_CONTINUE;
8002}
8003
8004/**
8005 * ipr_unit_check_no_data - Log a unit check/no data error log
8006 * @ioa_cfg: ioa config struct
8007 *
8008 * Logs an error indicating the adapter unit checked, but for some
8009 * reason, we were unable to fetch the unit check buffer.
8010 *
8011 * Return value:
8012 * nothing
8013 **/
8014static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
8015{
8016 ioa_cfg->errors_logged++;
8017 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
8018}
8019
8020/**
8021 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
8022 * @ioa_cfg: ioa config struct
8023 *
8024 * Fetches the unit check buffer from the adapter by clocking the data
8025 * through the mailbox register.
8026 *
8027 * Return value:
8028 * nothing
8029 **/
8030static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8031{
8032 unsigned long mailbox;
8033 struct ipr_hostrcb *hostrcb;
8034 struct ipr_uc_sdt sdt;
8035 int rc, length;
65f56475 8036 u32 ioasc;
1da177e4
LT		 8037
8038 mailbox = readl(ioa_cfg->ioa_mailbox);
8039
dcbad00e 8040 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8041 ipr_unit_check_no_data(ioa_cfg);
8042 return;
8043 }
8044
8045 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8046 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8047 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8048
dcbad00e
WB		 8049 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8050 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8051 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8052 ipr_unit_check_no_data(ioa_cfg);
8053 return;
8054 }
8055
8056 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8057 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8058 length = be32_to_cpu(sdt.entry[0].end_token);
8059 else
8060 length = (be32_to_cpu(sdt.entry[0].end_token) -
8061 be32_to_cpu(sdt.entry[0].start_token)) &
8062 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8063
8064 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8065 struct ipr_hostrcb, queue);
8066 list_del(&hostrcb->queue);
8067 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8068
8069 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8070 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8071 (__be32 *)&hostrcb->hcam,
8072 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8073
65f56475 8074 if (!rc) {
1da177e4 8075 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8076 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8077 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8078 ioa_cfg->sdt_state == GET_DUMP)
8079 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8080 } else
1da177e4
LT		 8081 ipr_unit_check_no_data(ioa_cfg);
8082
8083 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8084}
8085
110def85
WB		 8086/**
8087 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8088 * @ipr_cmd: ipr command struct
8089 *
8090 * Description: This function will call to get the unit check buffer.
8091 *
8092 * Return value:
8093 * IPR_RC_JOB_RETURN
8094 **/
8095static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8096{
8097 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8098
8099 ENTER;
8100 ioa_cfg->ioa_unit_checked = 0;
8101 ipr_get_unit_check_buffer(ioa_cfg);
8102 ipr_cmd->job_step = ipr_reset_alert;
8103 ipr_reset_start_timer(ipr_cmd, 0);
8104
8105 LEAVE;
8106 return IPR_RC_JOB_RETURN;
8107}
8108
1da177e4
LT		 8109/**
8110 * ipr_reset_restore_cfg_space - Restore PCI config space.
8111 * @ipr_cmd: ipr command struct
8112 *
8113 * Description: This function restores the saved PCI config space of
8114 * the adapter, fails all outstanding ops back to the callers, and
8115 * fetches the dump/unit check if applicable to this reset.
8116 *
8117 * Return value:
8118 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8119 **/
8120static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8121{
8122 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8123 u32 int_reg;
1da177e4
LT		 8124
8125 ENTER;
99c965dd 8126 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8127 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8128
8129 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8130 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8131 return IPR_RC_JOB_CONTINUE;
8132 }
8133
8134 ipr_fail_all_ops(ioa_cfg);
8135
8701f185
WB		 8136 if (ioa_cfg->sis64) {
8137 /* Set the adapter to the correct endian mode. */
8138 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8139 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8140 }
8141
1da177e4 8142 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8143 if (ioa_cfg->sis64) {
8144 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8145 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8146 return IPR_RC_JOB_RETURN;
8147 } else {
8148 ioa_cfg->ioa_unit_checked = 0;
8149 ipr_get_unit_check_buffer(ioa_cfg);
8150 ipr_cmd->job_step = ipr_reset_alert;
8151 ipr_reset_start_timer(ipr_cmd, 0);
8152 return IPR_RC_JOB_RETURN;
8153 }
1da177e4
LT		 8154 }
8155
8156 if (ioa_cfg->in_ioa_bringdown) {
8157 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8158 } else {
8159 ipr_cmd->job_step = ipr_reset_enable_ioa;
8160
8161 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 8162 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 8163 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 8164 if (ioa_cfg->sis64)
8165 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8166 else
8167 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 8168 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8169 schedule_work(&ioa_cfg->work_q);
8170 return IPR_RC_JOB_RETURN;
8171 }
8172 }
8173
438b0331 8174 LEAVE;
1da177e4
LT		 8175 return IPR_RC_JOB_CONTINUE;
8176}
8177
e619e1a7
BK		 8178/**
8179 * ipr_reset_bist_done - BIST has completed on the adapter.
8180 * @ipr_cmd: ipr command struct
8181 *
8182 * Description: Unblock config space and resume the reset process.
8183 *
8184 * Return value:
8185 * IPR_RC_JOB_CONTINUE
8186 **/
8187static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8188{
fb51ccbf
JK		 8189 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8190
e619e1a7 8191 ENTER;
fb51ccbf
JK		 8192 if (ioa_cfg->cfg_locked)
8193 pci_cfg_access_unlock(ioa_cfg->pdev);
8194 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8195 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8196 LEAVE;
8197 return IPR_RC_JOB_CONTINUE;
8198}
8199
1da177e4
LT		 8200/**
8201 * ipr_reset_start_bist - Run BIST on the adapter.
8202 * @ipr_cmd: ipr command struct
8203 *
8204 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8205 *
8206 * Return value:
8207 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8208 **/
8209static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8210{
8211 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8212 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8213
8214 ENTER;
cb237ef7
WB		 8215 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8216 writel(IPR_UPROCI_SIS64_START_BIST,
8217 ioa_cfg->regs.set_uproc_interrupt_reg32);
8218 else
8219 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8220
8221 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8222 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8223 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8224 rc = IPR_RC_JOB_RETURN;
cb237ef7 8225 } else {
fb51ccbf
JK		 8226 if (ioa_cfg->cfg_locked)
8227 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8228 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8229 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8230 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8231 }
8232
8233 LEAVE;
8234 return rc;
8235}
8236
463fc696
BK		 8237/**
8238 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8239 * @ipr_cmd: ipr command struct
8240 *
8241 * Description: This clears PCI reset to the adapter and delays two seconds.
8242 *
8243 * Return value:
8244 * IPR_RC_JOB_RETURN
8245 **/
8246static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8247{
8248 ENTER;
8249 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
8250 ipr_cmd->job_step = ipr_reset_bist_done;
8251 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8252 LEAVE;
8253 return IPR_RC_JOB_RETURN;
8254}
8255
8256/**
8257 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8258 * @ipr_cmd: ipr command struct
8259 *
8260 * Description: This asserts PCI reset to the adapter.
8261 *
8262 * Return value:
8263 * IPR_RC_JOB_RETURN
8264 **/
8265static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8266{
8267 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8268 struct pci_dev *pdev = ioa_cfg->pdev;
8269
8270 ENTER;
463fc696
BK		 8271 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8272 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8273 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
8274 LEAVE;
8275 return IPR_RC_JOB_RETURN;
8276}
8277
fb51ccbf
JK		 8278/**
8279 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8280 * @ipr_cmd: ipr command struct
8281 *
8282 * Description: This attempts to block config access to the IOA.
8283 *
8284 * Return value:
8285 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8286 **/
8287static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8288{
8289 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8290 int rc = IPR_RC_JOB_CONTINUE;
8291
8292 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8293 ioa_cfg->cfg_locked = 1;
8294 ipr_cmd->job_step = ioa_cfg->reset;
8295 } else {
8296 if (ipr_cmd->u.time_left) {
8297 rc = IPR_RC_JOB_RETURN;
8298 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8299 ipr_reset_start_timer(ipr_cmd,
8300 IPR_CHECK_FOR_RESET_TIMEOUT);
8301 } else {
8302 ipr_cmd->job_step = ioa_cfg->reset;
8303 dev_err(&ioa_cfg->pdev->dev,
8304 "Timed out waiting to lock config access. Resetting anyway.\n");
8305 }
8306 }
8307
8308 return rc;
8309}
8310
8311/**
8312 * ipr_reset_block_config_access - Block config access to the IOA
8313 * @ipr_cmd: ipr command struct
8314 *
8315 * Description: This attempts to block config access to the IOA
8316 *
8317 * Return value:
8318 * IPR_RC_JOB_CONTINUE
8319 **/
8320static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8321{
8322 ipr_cmd->ioa_cfg->cfg_locked = 0;
8323 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8324 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8325 return IPR_RC_JOB_CONTINUE;
8326}
8327
1da177e4
LT		 8328/**
8329 * ipr_reset_allowed - Query whether or not IOA can be reset
8330 * @ioa_cfg: ioa config struct
8331 *
8332 * Return value:
8333 * 0 if reset not allowed / non-zero if reset is allowed
8334 **/
8335static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8336{
8337 volatile u32 temp_reg;
8338
8339 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8340 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8341}
8342
8343/**
8344 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8345 * @ipr_cmd: ipr command struct
8346 *
8347 * Description: This function waits for adapter permission to run BIST,
8348 * then runs BIST. If the adapter does not give permission after a
8349 * reasonable time, we will reset the adapter anyway. The impact of
8350 * resetting the adapter without warning the adapter is the risk of
8351 * losing the persistent error log on the adapter. If the adapter is
8352 * reset while it is writing to the flash on the adapter, the flash
8353 * segment will have bad ECC and be zeroed.
8354 *
8355 * Return value:
8356 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8357 **/
8358static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8359{
8360 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8361 int rc = IPR_RC_JOB_RETURN;
8362
8363 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8364 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8365 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8366 } else {
fb51ccbf 8367 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8368 rc = IPR_RC_JOB_CONTINUE;
8369 }
8370
8371 return rc;
8372}
8373
8374/**
8701f185 8375 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8376 * @ipr_cmd: ipr command struct
8377 *
8378 * Description: This function alerts the adapter that it will be reset.
8379 * If memory space is not currently enabled, proceed directly
8380 * to running BIST on the adapter. The timer must always be started
8381 * so we guarantee we do not run BIST from ipr_isr.
8382 *
8383 * Return value:
8384 * IPR_RC_JOB_RETURN
8385 **/
8386static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8387{
8388 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8389 u16 cmd_reg;
8390 int rc;
8391
8392 ENTER;
8393 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8394
8395 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8396 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8397 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8398 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8399 } else {
fb51ccbf 8400 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8401 }
8402
8403 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8404 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8405
8406 LEAVE;
8407 return IPR_RC_JOB_RETURN;
8408}
8409
8410/**
8411 * ipr_reset_ucode_download_done - Microcode download completion
8412 * @ipr_cmd: ipr command struct
8413 *
8414 * Description: This function unmaps the microcode download buffer.
8415 *
8416 * Return value:
8417 * IPR_RC_JOB_CONTINUE
8418 **/
8419static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8420{
8421 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8422 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8423
8424 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
8425 sglist->num_sg, DMA_TO_DEVICE);
8426
8427 ipr_cmd->job_step = ipr_reset_alert;
8428 return IPR_RC_JOB_CONTINUE;
8429}
8430
8431/**
8432 * ipr_reset_ucode_download - Download microcode to the adapter
8433 * @ipr_cmd: ipr command struct
8434 *
8435 * Description: This function checks to see if it there is microcode
8436 * to download to the adapter. If there is, a download is performed.
8437 *
8438 * Return value:
8439 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8440 **/
8441static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8442{
8443 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8444 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8445
8446 ENTER;
8447 ipr_cmd->job_step = ipr_reset_alert;
8448
8449 if (!sglist)
8450 return IPR_RC_JOB_CONTINUE;
8451
8452 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8453 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8454 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8455 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8456 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8457 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8458 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8459
a32c055f
WB		 8460 if (ioa_cfg->sis64)
8461 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8462 else
8463 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8464 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8465
8466 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8467 IPR_WRITE_BUFFER_TIMEOUT);
8468
8469 LEAVE;
8470 return IPR_RC_JOB_RETURN;
8471}
8472
8473/**
8474 * ipr_reset_shutdown_ioa - Shutdown the adapter
8475 * @ipr_cmd: ipr command struct
8476 *
8477 * Description: This function issues an adapter shutdown of the
8478 * specified type to the specified adapter as part of the
8479 * adapter reset job.
8480 *
8481 * Return value:
8482 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8483 **/
8484static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8485{
8486 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8487 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8488 unsigned long timeout;
8489 int rc = IPR_RC_JOB_CONTINUE;
8490
8491 ENTER;
56d6aa33 8492 if (shutdown_type != IPR_SHUTDOWN_NONE &&
8493 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8494 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8495 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8496 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8497 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8498
ac09c349
BK		 8499 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8500 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8501 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8502 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8503 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8504 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8505 else
ac09c349 8506 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8507
8508 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8509
8510 rc = IPR_RC_JOB_RETURN;
8511 ipr_cmd->job_step = ipr_reset_ucode_download;
8512 } else
8513 ipr_cmd->job_step = ipr_reset_alert;
8514
8515 LEAVE;
8516 return rc;
8517}
8518
8519/**
8520 * ipr_reset_ioa_job - Adapter reset job
8521 * @ipr_cmd: ipr command struct
8522 *
8523 * Description: This function is the job router for the adapter reset job.
8524 *
8525 * Return value:
8526 * none
8527 **/
8528static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8529{
8530 u32 rc, ioasc;
1da177e4
LT		 8531 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8532
8533 do {
96d21f00 8534 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8535
8536 if (ioa_cfg->reset_cmd != ipr_cmd) {
8537 /*
8538 * We are doing nested adapter resets and this is
8539 * not the current reset job.
8540 */
05a6538a 8541 list_add_tail(&ipr_cmd->queue,
8542 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8543 return;
8544 }
8545
8546 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 8547 rc = ipr_cmd->job_step_failed(ipr_cmd);
8548 if (rc == IPR_RC_JOB_RETURN)
8549 return;
1da177e4
LT		 8550 }
8551
8552 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8553 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8554 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8555 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8556}
8557
8558/**
8559 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8560 * @ioa_cfg: ioa config struct
8561 * @job_step: first job step of reset job
8562 * @shutdown_type: shutdown type
8563 *
8564 * Description: This function will initiate the reset of the given adapter
8565 * starting at the selected job step.
8566 * If the caller needs to wait on the completion of the reset,
8567 * the caller must sleep on the reset_wait_q.
8568 *
8569 * Return value:
8570 * none
8571 **/
8572static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8573 int (*job_step) (struct ipr_cmnd *),
8574 enum ipr_shutdown_type shutdown_type)
8575{
8576 struct ipr_cmnd *ipr_cmd;
56d6aa33 8577 int i;
1da177e4
LT		 8578
8579 ioa_cfg->in_reset_reload = 1;
56d6aa33 8580 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8581 spin_lock(&ioa_cfg->hrrq[i]._lock);
8582 ioa_cfg->hrrq[i].allow_cmds = 0;
8583 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8584 }
8585 wmb();
bfae7820
BK		 8586 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
8587 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 8588
8589 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8590 ioa_cfg->reset_cmd = ipr_cmd;
8591 ipr_cmd->job_step = job_step;
8592 ipr_cmd->u.shutdown_type = shutdown_type;
8593
8594 ipr_reset_ioa_job(ipr_cmd);
8595}
8596
8597/**
8598 * ipr_initiate_ioa_reset - Initiate an adapter reset
8599 * @ioa_cfg: ioa config struct
8600 * @shutdown_type: shutdown type
8601 *
8602 * Description: This function will initiate the reset of the given adapter.
8603 * If the caller needs to wait on the completion of the reset,
8604 * the caller must sleep on the reset_wait_q.
8605 *
8606 * Return value:
8607 * none
8608 **/
8609static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8610 enum ipr_shutdown_type shutdown_type)
8611{
56d6aa33 8612 int i;
8613
8614 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 8615 return;
8616
41e9a696
BK		 8617 if (ioa_cfg->in_reset_reload) {
8618 if (ioa_cfg->sdt_state == GET_DUMP)
8619 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8620 else if (ioa_cfg->sdt_state == READ_DUMP)
8621 ioa_cfg->sdt_state = ABORT_DUMP;
8622 }
1da177e4
LT		 8623
8624 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8625 dev_err(&ioa_cfg->pdev->dev,
8626 "IOA taken offline - error recovery failed\n");
8627
8628 ioa_cfg->reset_retries = 0;
56d6aa33 8629 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8630 spin_lock(&ioa_cfg->hrrq[i]._lock);
8631 ioa_cfg->hrrq[i].ioa_is_dead = 1;
8632 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8633 }
8634 wmb();
1da177e4
LT		 8635
8636 if (ioa_cfg->in_ioa_bringdown) {
8637 ioa_cfg->reset_cmd = NULL;
8638 ioa_cfg->in_reset_reload = 0;
8639 ipr_fail_all_ops(ioa_cfg);
8640 wake_up_all(&ioa_cfg->reset_wait_q);
8641
bfae7820
BK		 8642 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
8643 spin_unlock_irq(ioa_cfg->host->host_lock);
8644 scsi_unblock_requests(ioa_cfg->host);
8645 spin_lock_irq(ioa_cfg->host->host_lock);
8646 }
1da177e4
LT		 8647 return;
8648 } else {
8649 ioa_cfg->in_ioa_bringdown = 1;
8650 shutdown_type = IPR_SHUTDOWN_NONE;
8651 }
8652 }
8653
8654 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8655 shutdown_type);
8656}
8657
f8a88b19
LV		 8658/**
8659 * ipr_reset_freeze - Hold off all I/O activity
8660 * @ipr_cmd: ipr command struct
8661 *
8662 * Description: If the PCI slot is frozen, hold off all I/O
8663 * activity; then, as soon as the slot is available again,
8664 * initiate an adapter reset.
8665 */
8666static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8667{
56d6aa33 8668 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8669 int i;
8670
f8a88b19 8671 /* Disallow new interrupts, avoid loop */
56d6aa33 8672 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8673 spin_lock(&ioa_cfg->hrrq[i]._lock);
8674 ioa_cfg->hrrq[i].allow_interrupts = 0;
8675 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8676 }
8677 wmb();
05a6538a 8678 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 8679 ipr_cmd->done = ipr_reset_ioa_job;
8680 return IPR_RC_JOB_RETURN;
8681}
8682
6270e593
BK		 8683/**
8684 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
8685 * @pdev: PCI device struct
8686 *
8687 * Description: This routine is called to tell us that the MMIO
8688 * access to the IOA has been restored
8689 */
8690static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
8691{
8692 unsigned long flags = 0;
8693 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8694
8695 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8696 if (!ioa_cfg->probe_done)
8697 pci_save_state(pdev);
8698 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8699 return PCI_ERS_RESULT_NEED_RESET;
8700}
8701
f8a88b19
LV		 8702/**
8703 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8704 * @pdev: PCI device struct
8705 *
8706 * Description: This routine is called to tell us that the PCI bus
8707 * is down. Can't do anything here, except put the device driver
8708 * into a holding pattern, waiting for the PCI bus to come back.
8709 */
8710static void ipr_pci_frozen(struct pci_dev *pdev)
8711{
8712 unsigned long flags = 0;
8713 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8714
8715 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8716 if (ioa_cfg->probe_done)
8717 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 8718 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8719}
8720
8721/**
8722 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8723 * @pdev: PCI device struct
8724 *
8725 * Description: This routine is called by the pci error recovery
8726 * code after the PCI slot has been reset, just before we
8727 * should resume normal operations.
8728 */
8729static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8730{
8731 unsigned long flags = 0;
8732 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8733
8734 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8735 if (ioa_cfg->probe_done) {
8736 if (ioa_cfg->needs_warm_reset)
8737 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8738 else
8739 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8740 IPR_SHUTDOWN_NONE);
8741 } else
8742 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 8743 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8744 return PCI_ERS_RESULT_RECOVERED;
8745}
8746
8747/**
8748 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8749 * @pdev: PCI device struct
8750 *
8751 * Description: This routine is called when the PCI bus has
8752 * permanently failed.
8753 */
8754static void ipr_pci_perm_failure(struct pci_dev *pdev)
8755{
8756 unsigned long flags = 0;
8757 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 8758 int i;
f8a88b19
LV		 8759
8760 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8761 if (ioa_cfg->probe_done) {
8762 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8763 ioa_cfg->sdt_state = ABORT_DUMP;
8764 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
8765 ioa_cfg->in_ioa_bringdown = 1;
8766 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8767 spin_lock(&ioa_cfg->hrrq[i]._lock);
8768 ioa_cfg->hrrq[i].allow_cmds = 0;
8769 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8770 }
8771 wmb();
8772 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8773 } else
8774 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 8775 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8776}
8777
8778/**
8779 * ipr_pci_error_detected - Called when a PCI error is detected.
8780 * @pdev: PCI device struct
8781 * @state: PCI channel state
8782 *
8783 * Description: Called when a PCI error is detected.
8784 *
8785 * Return value:
8786 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8787 */
8788static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8789 pci_channel_state_t state)
8790{
8791 switch (state) {
8792 case pci_channel_io_frozen:
8793 ipr_pci_frozen(pdev);
6270e593 8794 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 8795 case pci_channel_io_perm_failure:
8796 ipr_pci_perm_failure(pdev);
8797 return PCI_ERS_RESULT_DISCONNECT;
8798 break;
8799 default:
8800 break;
8801 }
8802 return PCI_ERS_RESULT_NEED_RESET;
8803}
8804
1da177e4
LT		 8805/**
8806 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8807 * @ioa_cfg: ioa cfg struct
8808 *
8809 * Description: This is the second phase of adapter intialization
8810 * This function takes care of initilizing the adapter to the point
8811 * where it can accept new commands.
8812
8813 * Return value:
b1c11812 8814 * 0 on success / -EIO on failure
1da177e4 8815 **/
6f039790 8816static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 8817{
8818 int rc = 0;
8819 unsigned long host_lock_flags = 0;
8820
8821 ENTER;
8822 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8823 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 8824 ioa_cfg->probe_done = 1;
ce155cce
BK		 8825 if (ioa_cfg->needs_hard_reset) {
8826 ioa_cfg->needs_hard_reset = 0;
8827 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8828 } else
8829 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8830 IPR_SHUTDOWN_NONE);
1da177e4
LT		 8831 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8832 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8833 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8834
56d6aa33 8835 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8836 rc = -EIO;
8837 } else if (ipr_invalid_adapter(ioa_cfg)) {
8838 if (!ipr_testmode)
8839 rc = -EIO;
8840
8841 dev_err(&ioa_cfg->pdev->dev,
8842 "Adapter not supported in this hardware configuration.\n");
8843 }
8844
8845 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8846
8847 LEAVE;
8848 return rc;
8849}
8850
8851/**
8852 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8853 * @ioa_cfg: ioa config struct
8854 *
8855 * Return value:
8856 * none
8857 **/
8858static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8859{
8860 int i;
8861
8862 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8863 if (ioa_cfg->ipr_cmnd_list[i])
8864 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8865 ioa_cfg->ipr_cmnd_list[i],
8866 ioa_cfg->ipr_cmnd_list_dma[i]);
8867
8868 ioa_cfg->ipr_cmnd_list[i] = NULL;
8869 }
8870
8871 if (ioa_cfg->ipr_cmd_pool)
203fa3fe 8872 pci_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 8873
89aad428
BK		 8874 kfree(ioa_cfg->ipr_cmnd_list);
8875 kfree(ioa_cfg->ipr_cmnd_list_dma);
8876 ioa_cfg->ipr_cmnd_list = NULL;
8877 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 8878 ioa_cfg->ipr_cmd_pool = NULL;
8879}
8880
8881/**
8882 * ipr_free_mem - Frees memory allocated for an adapter
8883 * @ioa_cfg: ioa cfg struct
8884 *
8885 * Return value:
8886 * nothing
8887 **/
8888static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8889{
8890 int i;
8891
8892 kfree(ioa_cfg->res_entries);
8893 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8894 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8895 ipr_free_cmd_blks(ioa_cfg);
05a6538a 8896
8897 for (i = 0; i < ioa_cfg->hrrq_num; i++)
8898 pci_free_consistent(ioa_cfg->pdev,
8899 sizeof(u32) * ioa_cfg->hrrq[i].size,
8900 ioa_cfg->hrrq[i].host_rrq,
8901 ioa_cfg->hrrq[i].host_rrq_dma);
8902
3e7ebdfa
WB		 8903 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8904 ioa_cfg->u.cfg_table,
1da177e4
LT		 8905 ioa_cfg->cfg_table_dma);
8906
8907 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8908 pci_free_consistent(ioa_cfg->pdev,
8909 sizeof(struct ipr_hostrcb),
8910 ioa_cfg->hostrcb[i],
8911 ioa_cfg->hostrcb_dma[i]);
8912 }
8913
8914 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8915 kfree(ioa_cfg->trace);
8916}
8917
8918/**
8919 * ipr_free_all_resources - Free all allocated resources for an adapter.
8920 * @ipr_cmd: ipr command struct
8921 *
8922 * This function frees all allocated resources for the
8923 * specified adapter.
8924 *
8925 * Return value:
8926 * none
8927 **/
8928static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8929{
8930 struct pci_dev *pdev = ioa_cfg->pdev;
8931
8932 ENTER;
05a6538a 8933 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
8934 ioa_cfg->intr_flag == IPR_USE_MSIX) {
8935 int i;
8936 for (i = 0; i < ioa_cfg->nvectors; i++)
8937 free_irq(ioa_cfg->vectors_info[i].vec,
8938 &ioa_cfg->hrrq[i]);
8939 } else
8940 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
8941
56d6aa33 8942 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 8943 pci_disable_msi(pdev);
56d6aa33 8944 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
8945 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 8946 pci_disable_msix(pdev);
56d6aa33 8947 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
8948 }
05a6538a 8949
1da177e4
LT		 8950 iounmap(ioa_cfg->hdw_dma_regs);
8951 pci_release_regions(pdev);
8952 ipr_free_mem(ioa_cfg);
8953 scsi_host_put(ioa_cfg->host);
8954 pci_disable_device(pdev);
8955 LEAVE;
8956}
8957
8958/**
8959 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8960 * @ioa_cfg: ioa config struct
8961 *
8962 * Return value:
8963 * 0 on success / -ENOMEM on allocation failure
8964 **/
6f039790 8965static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 8966{
8967 struct ipr_cmnd *ipr_cmd;
8968 struct ipr_ioarcb *ioarcb;
8969 dma_addr_t dma_addr;
05a6538a 8970 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 8971
203fa3fe
KSS		 8972 ioa_cfg->ipr_cmd_pool = pci_pool_create(IPR_NAME, ioa_cfg->pdev,
8973 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 8974
8975 if (!ioa_cfg->ipr_cmd_pool)
8976 return -ENOMEM;
8977
89aad428
BK		 8978 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
8979 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
8980
8981 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
8982 ipr_free_cmd_blks(ioa_cfg);
8983 return -ENOMEM;
8984 }
8985
05a6538a 8986 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8987 if (ioa_cfg->hrrq_num > 1) {
8988 if (i == 0) {
8989 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
8990 ioa_cfg->hrrq[i].min_cmd_id = 0;
8991 ioa_cfg->hrrq[i].max_cmd_id =
8992 (entries_each_hrrq - 1);
8993 } else {
8994 entries_each_hrrq =
8995 IPR_NUM_BASE_CMD_BLKS/
8996 (ioa_cfg->hrrq_num - 1);
8997 ioa_cfg->hrrq[i].min_cmd_id =
8998 IPR_NUM_INTERNAL_CMD_BLKS +
8999 (i - 1) * entries_each_hrrq;
9000 ioa_cfg->hrrq[i].max_cmd_id =
9001 (IPR_NUM_INTERNAL_CMD_BLKS +
9002 i * entries_each_hrrq - 1);
9003 }
9004 } else {
9005 entries_each_hrrq = IPR_NUM_CMD_BLKS;
9006 ioa_cfg->hrrq[i].min_cmd_id = 0;
9007 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
9008 }
9009 ioa_cfg->hrrq[i].size = entries_each_hrrq;
9010 }
9011
9012 BUG_ON(ioa_cfg->hrrq_num == 0);
9013
9014 i = IPR_NUM_CMD_BLKS -
9015 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
9016 if (i > 0) {
9017 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
9018 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
9019 }
9020
1da177e4 9021 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
203fa3fe 9022 ipr_cmd = pci_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 9023
9024 if (!ipr_cmd) {
9025 ipr_free_cmd_blks(ioa_cfg);
9026 return -ENOMEM;
9027 }
9028
9029 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9030 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9031 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9032
9033 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9034 ipr_cmd->dma_addr = dma_addr;
9035 if (ioa_cfg->sis64)
9036 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9037 else
9038 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9039
1da177e4 9040 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9041 if (ioa_cfg->sis64) {
9042 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9043 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9044 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9045 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9046 } else {
9047 ioarcb->write_ioadl_addr =
9048 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9049 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9050 ioarcb->ioasa_host_pci_addr =
96d21f00 9051 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9052 }
1da177e4
LT		 9053 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9054 ipr_cmd->cmd_index = i;
9055 ipr_cmd->ioa_cfg = ioa_cfg;
9056 ipr_cmd->sense_buffer_dma = dma_addr +
9057 offsetof(struct ipr_cmnd, sense_buffer);
9058
05a6538a 9059 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9060 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9061 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9062 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9063 hrrq_id++;
1da177e4
LT		 9064 }
9065
9066 return 0;
9067}
9068
9069/**
9070 * ipr_alloc_mem - Allocate memory for an adapter
9071 * @ioa_cfg: ioa config struct
9072 *
9073 * Return value:
9074 * 0 on success / non-zero for error
9075 **/
6f039790 9076static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9077{
9078 struct pci_dev *pdev = ioa_cfg->pdev;
9079 int i, rc = -ENOMEM;
9080
9081 ENTER;
0bc42e35 9082 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9083 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9084
9085 if (!ioa_cfg->res_entries)
9086 goto out;
9087
3e7ebdfa 9088 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9089 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9090 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9091 }
1da177e4
LT		 9092
9093 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
9094 sizeof(struct ipr_misc_cbs),
9095 &ioa_cfg->vpd_cbs_dma);
9096
9097 if (!ioa_cfg->vpd_cbs)
9098 goto out_free_res_entries;
9099
9100 if (ipr_alloc_cmd_blks(ioa_cfg))
9101 goto out_free_vpd_cbs;
9102
05a6538a 9103 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9104 ioa_cfg->hrrq[i].host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
9105 sizeof(u32) * ioa_cfg->hrrq[i].size,
9106 &ioa_cfg->hrrq[i].host_rrq_dma);
9107
9108 if (!ioa_cfg->hrrq[i].host_rrq) {
9109 while (--i > 0)
9110 pci_free_consistent(pdev,
9111 sizeof(u32) * ioa_cfg->hrrq[i].size,
9112 ioa_cfg->hrrq[i].host_rrq,
9113 ioa_cfg->hrrq[i].host_rrq_dma);
9114 goto out_ipr_free_cmd_blocks;
9115 }
9116 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9117 }
1da177e4 9118
3e7ebdfa
WB		 9119 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
9120 ioa_cfg->cfg_table_size,
9121 &ioa_cfg->cfg_table_dma);
1da177e4 9122
3e7ebdfa 9123 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9124 goto out_free_host_rrq;
9125
9126 for (i = 0; i < IPR_NUM_HCAMS; i++) {
9127 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
9128 sizeof(struct ipr_hostrcb),
9129 &ioa_cfg->hostrcb_dma[i]);
9130
9131 if (!ioa_cfg->hostrcb[i])
9132 goto out_free_hostrcb_dma;
9133
9134 ioa_cfg->hostrcb[i]->hostrcb_dma =
9135 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9136 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9137 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9138 }
9139
0bc42e35 9140 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9141 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9142
9143 if (!ioa_cfg->trace)
9144 goto out_free_hostrcb_dma;
9145
1da177e4
LT		 9146 rc = 0;
9147out:
9148 LEAVE;
9149 return rc;
9150
9151out_free_hostrcb_dma:
9152 while (i-- > 0) {
9153 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
9154 ioa_cfg->hostrcb[i],
9155 ioa_cfg->hostrcb_dma[i]);
9156 }
3e7ebdfa
WB		 9157 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
9158 ioa_cfg->u.cfg_table,
9159 ioa_cfg->cfg_table_dma);
1da177e4 9160out_free_host_rrq:
05a6538a 9161 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9162 pci_free_consistent(pdev,
9163 sizeof(u32) * ioa_cfg->hrrq[i].size,
9164 ioa_cfg->hrrq[i].host_rrq,
9165 ioa_cfg->hrrq[i].host_rrq_dma);
9166 }
1da177e4
LT		 9167out_ipr_free_cmd_blocks:
9168 ipr_free_cmd_blks(ioa_cfg);
9169out_free_vpd_cbs:
9170 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
9171 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
9172out_free_res_entries:
9173 kfree(ioa_cfg->res_entries);
9174 goto out;
9175}
9176
9177/**
9178 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9179 * @ioa_cfg: ioa config struct
9180 *
9181 * Return value:
9182 * none
9183 **/
6f039790 9184static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9185{
9186 int i;
9187
9188 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9189 ioa_cfg->bus_attr[i].bus = i;
9190 ioa_cfg->bus_attr[i].qas_enabled = 0;
9191 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9192 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9193 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9194 else
9195 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9196 }
9197}
9198
6270e593
BK		 9199/**
9200 * ipr_init_regs - Initialize IOA registers
9201 * @ioa_cfg: ioa config struct
9202 *
9203 * Return value:
9204 * none
9205 **/
9206static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9207{
9208 const struct ipr_interrupt_offsets *p;
9209 struct ipr_interrupts *t;
9210 void __iomem *base;
9211
9212 p = &ioa_cfg->chip_cfg->regs;
9213 t = &ioa_cfg->regs;
9214 base = ioa_cfg->hdw_dma_regs;
9215
9216 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9217 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9218 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9219 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9220 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9221 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9222 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9223 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9224 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9225 t->ioarrin_reg = base + p->ioarrin_reg;
9226 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9227 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9228 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9229 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9230 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9231 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9232
9233 if (ioa_cfg->sis64) {
9234 t->init_feedback_reg = base + p->init_feedback_reg;
9235 t->dump_addr_reg = base + p->dump_addr_reg;
9236 t->dump_data_reg = base + p->dump_data_reg;
9237 t->endian_swap_reg = base + p->endian_swap_reg;
9238 }
9239}
9240
1da177e4
LT		 9241/**
9242 * ipr_init_ioa_cfg - Initialize IOA config struct
9243 * @ioa_cfg: ioa config struct
9244 * @host: scsi host struct
9245 * @pdev: PCI dev struct
9246 *
9247 * Return value:
9248 * none
9249 **/
6f039790
GKH		 9250static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9251 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9252{
6270e593 9253 int i;
1da177e4
LT		 9254
9255 ioa_cfg->host = host;
9256 ioa_cfg->pdev = pdev;
9257 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9258 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9259 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9260 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9261 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9262 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9263 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9264 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9265
1da177e4
LT		 9266 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9267 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9268 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9269 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9270 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9271 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9272 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9273 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9274 ioa_cfg->sdt_state = INACTIVE;
9275
9276 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9277 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9278
3e7ebdfa
WB		 9279 if (ioa_cfg->sis64) {
9280 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9281 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9282 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9283 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9284 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9285 + ((sizeof(struct ipr_config_table_entry64)
9286 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9287 } else {
9288 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9289 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9290 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9291 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9292 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9293 + ((sizeof(struct ipr_config_table_entry)
9294 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9295 }
6270e593 9296
1da177e4
LT		 9297 host->max_channel = IPR_MAX_BUS_TO_SCAN;
9298 host->unique_id = host->host_no;
9299 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9300 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9301 pci_set_drvdata(pdev, ioa_cfg);
9302
6270e593
BK		 9303 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9304 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9305 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9306 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9307 if (i == 0)
9308 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9309 else
9310 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9311 }
1da177e4
LT		 9312}
9313
9314/**
1be7bd82 9315 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9316 * @dev_id: PCI device id struct
9317 *
9318 * Return value:
1be7bd82 9319 * ptr to chip information on success / NULL on failure
1da177e4 9320 **/
6f039790 9321static const struct ipr_chip_t *
1be7bd82 9322ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9323{
9324 int i;
9325
1da177e4
LT		 9326 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9327 if (ipr_chip[i].vendor == dev_id->vendor &&
9328 ipr_chip[i].device == dev_id->device)
1be7bd82 9329 return &ipr_chip[i];
1da177e4
LT		 9330 return NULL;
9331}
9332
6270e593
BK		 9333/**
9334 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9335 * during probe time
9336 * @ioa_cfg: ioa config struct
9337 *
9338 * Return value:
9339 * None
9340 **/
9341static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9342{
9343 struct pci_dev *pdev = ioa_cfg->pdev;
9344
9345 if (pci_channel_offline(pdev)) {
9346 wait_event_timeout(ioa_cfg->eeh_wait_q,
9347 !pci_channel_offline(pdev),
9348 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9349 pci_restore_state(pdev);
9350 }
9351}
9352
05a6538a 9353static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9354{
9355 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
60e76b77 9356 int i, vectors;
05a6538a 9357
9358 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9359 entries[i].entry = i;
9360
60e76b77
AG		 9361 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9362 entries, 1, ipr_number_of_msix);
9363 if (vectors < 0) {
6270e593 9364 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9365 return vectors;
05a6538a 9366 }
9367
60e76b77
AG		 9368 for (i = 0; i < vectors; i++)
9369 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9370 ioa_cfg->nvectors = vectors;
05a6538a 9371
60e76b77 9372 return 0;
05a6538a 9373}
9374
9375static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9376{
60e76b77 9377 int i, vectors;
05a6538a 9378
60e76b77
AG		 9379 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9380 if (vectors < 0) {
6270e593 9381 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9382 return vectors;
05a6538a 9383 }
9384
60e76b77
AG		 9385 for (i = 0; i < vectors; i++)
9386 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9387 ioa_cfg->nvectors = vectors;
05a6538a 9388
60e76b77 9389 return 0;
05a6538a 9390}
9391
9392static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9393{
9394 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9395
9396 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9397 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9398 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9399 ioa_cfg->vectors_info[vec_idx].
9400 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9401 }
9402}
9403
9404static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9405{
9406 int i, rc;
9407
9408 for (i = 1; i < ioa_cfg->nvectors; i++) {
9409 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9410 ipr_isr_mhrrq,
9411 0,
9412 ioa_cfg->vectors_info[i].desc,
9413 &ioa_cfg->hrrq[i]);
9414 if (rc) {
9415 while (--i >= 0)
9416 free_irq(ioa_cfg->vectors_info[i].vec,
9417 &ioa_cfg->hrrq[i]);
9418 return rc;
9419 }
9420 }
9421 return 0;
9422}
9423
95fecd90
WB		 9424/**
9425 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9426 * @pdev: PCI device struct
9427 *
9428 * Description: Simply set the msi_received flag to 1 indicating that
9429 * Message Signaled Interrupts are supported.
9430 *
9431 * Return value:
9432 * 0 on success / non-zero on failure
9433 **/
6f039790 9434static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9435{
9436 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9437 unsigned long lock_flags = 0;
9438 irqreturn_t rc = IRQ_HANDLED;
9439
05a6538a 9440 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9441 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9442
9443 ioa_cfg->msi_received = 1;
9444 wake_up(&ioa_cfg->msi_wait_q);
9445
9446 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9447 return rc;
9448}
9449
9450/**
9451 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9452 * @pdev: PCI device struct
9453 *
60e76b77 9454 * Description: The return value from pci_enable_msi_range() can not always be
95fecd90
WB		 9455 * trusted. This routine sets up and initiates a test interrupt to determine
9456 * if the interrupt is received via the ipr_test_intr() service routine.
9457 * If the tests fails, the driver will fall back to LSI.
9458 *
9459 * Return value:
9460 * 0 on success / non-zero on failure
9461 **/
6f039790 9462static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9463{
9464 int rc;
9465 volatile u32 int_reg;
9466 unsigned long lock_flags = 0;
9467
9468 ENTER;
9469
9470 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9471 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9472 ioa_cfg->msi_received = 0;
9473 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9474 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9475 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9476 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9477
f19799f4 9478 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9479 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9480 else
9481 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9482 if (rc) {
9483 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9484 return rc;
9485 } else if (ipr_debug)
9486 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9487
214777ba 9488 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9489 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9490 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9491 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9492 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9493
95fecd90
WB		 9494 if (!ioa_cfg->msi_received) {
9495 /* MSI test failed */
9496 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9497 rc = -EOPNOTSUPP;
9498 } else if (ipr_debug)
9499 dev_info(&pdev->dev, "MSI test succeeded.\n");
9500
9501 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9502
f19799f4 9503 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9504 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9505 else
9506 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9507
9508 LEAVE;
9509
9510 return rc;
9511}
9512
05a6538a 9513 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9514 * @pdev: PCI device struct
9515 * @dev_id: PCI device id struct
9516 *
9517 * Return value:
9518 * 0 on success / non-zero on failure
9519 **/
6f039790
GKH		 9520static int ipr_probe_ioa(struct pci_dev *pdev,
9521 const struct pci_device_id *dev_id)
1da177e4
LT		 9522{
9523 struct ipr_ioa_cfg *ioa_cfg;
9524 struct Scsi_Host *host;
9525 unsigned long ipr_regs_pci;
9526 void __iomem *ipr_regs;
a2a65a3e 9527 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9528 volatile u32 mask, uproc, interrupts;
feccada9 9529 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9530
9531 ENTER;
9532
1da177e4 9533 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9534 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9535
9536 if (!host) {
9537 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9538 rc = -ENOMEM;
6270e593 9539 goto out;
1da177e4
LT		 9540 }
9541
9542 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9543 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9544 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9545
1be7bd82 9546 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9547
1be7bd82 9548 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9549 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9550 dev_id->vendor, dev_id->device);
9551 goto out_scsi_host_put;
9552 }
9553
a32c055f
WB		 9554 /* set SIS 32 or SIS 64 */
9555 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9556 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 9557 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 9558 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 9559
5469cb5b
BK		 9560 if (ipr_transop_timeout)
9561 ioa_cfg->transop_timeout = ipr_transop_timeout;
9562 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
9563 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
9564 else
9565 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
9566
44c10138 9567 ioa_cfg->revid = pdev->revision;
463fc696 9568
6270e593
BK		 9569 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
9570
1da177e4
LT		 9571 ipr_regs_pci = pci_resource_start(pdev, 0);
9572
9573 rc = pci_request_regions(pdev, IPR_NAME);
9574 if (rc < 0) {
9575 dev_err(&pdev->dev,
9576 "Couldn't register memory range of registers\n");
9577 goto out_scsi_host_put;
9578 }
9579
6270e593
BK		 9580 rc = pci_enable_device(pdev);
9581
9582 if (rc || pci_channel_offline(pdev)) {
9583 if (pci_channel_offline(pdev)) {
9584 ipr_wait_for_pci_err_recovery(ioa_cfg);
9585 rc = pci_enable_device(pdev);
9586 }
9587
9588 if (rc) {
9589 dev_err(&pdev->dev, "Cannot enable adapter\n");
9590 ipr_wait_for_pci_err_recovery(ioa_cfg);
9591 goto out_release_regions;
9592 }
9593 }
9594
25729a7f 9595 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 9596
9597 if (!ipr_regs) {
9598 dev_err(&pdev->dev,
9599 "Couldn't map memory range of registers\n");
9600 rc = -ENOMEM;
6270e593 9601 goto out_disable;
1da177e4
LT		 9602 }
9603
9604 ioa_cfg->hdw_dma_regs = ipr_regs;
9605 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
9606 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
9607
6270e593 9608 ipr_init_regs(ioa_cfg);
1da177e4 9609
a32c055f
WB		 9610 if (ioa_cfg->sis64) {
9611 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
9612 if (rc < 0) {
9613 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
9614 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
9615 }
a32c055f
WB		 9616 } else
9617 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
9618
1da177e4
LT		 9619 if (rc < 0) {
9620 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
9621 goto cleanup_nomem;
9622 }
9623
9624 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
9625 ioa_cfg->chip_cfg->cache_line_size);
9626
9627 if (rc != PCIBIOS_SUCCESSFUL) {
9628 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 9629 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 9630 rc = -EIO;
9631 goto cleanup_nomem;
9632 }
9633
6270e593
BK		 9634 /* Issue MMIO read to ensure card is not in EEH */
9635 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
9636 ipr_wait_for_pci_err_recovery(ioa_cfg);
9637
05a6538a 9638 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
9639 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
9640 IPR_MAX_MSIX_VECTORS);
9641 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
9642 }
9643
9644 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9645 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 9646 ioa_cfg->intr_flag = IPR_USE_MSIX;
9647 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9648 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 9649 ioa_cfg->intr_flag = IPR_USE_MSI;
9650 else {
9651 ioa_cfg->intr_flag = IPR_USE_LSI;
9652 ioa_cfg->nvectors = 1;
9653 dev_info(&pdev->dev, "Cannot enable MSI.\n");
9654 }
9655
6270e593
BK		 9656 pci_set_master(pdev);
9657
9658 if (pci_channel_offline(pdev)) {
9659 ipr_wait_for_pci_err_recovery(ioa_cfg);
9660 pci_set_master(pdev);
9661 if (pci_channel_offline(pdev)) {
9662 rc = -EIO;
9663 goto out_msi_disable;
9664 }
9665 }
9666
05a6538a 9667 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9668 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 9669 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 9670 if (rc == -EOPNOTSUPP) {
6270e593 9671 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9672 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9673 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9674 pci_disable_msi(pdev);
9675 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9676 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9677 pci_disable_msix(pdev);
9678 }
9679
9680 ioa_cfg->intr_flag = IPR_USE_LSI;
9681 ioa_cfg->nvectors = 1;
9682 }
95fecd90
WB		 9683 else if (rc)
9684 goto out_msi_disable;
05a6538a 9685 else {
9686 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9687 dev_info(&pdev->dev,
9688 "Request for %d MSIs succeeded with starting IRQ: %d\n",
9689 ioa_cfg->nvectors, pdev->irq);
9690 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9691 dev_info(&pdev->dev,
9692 "Request for %d MSIXs succeeded.",
9693 ioa_cfg->nvectors);
9694 }
9695 }
9696
9697 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
9698 (unsigned int)num_online_cpus(),
9699 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 9700
1da177e4 9701 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 9702 goto out_msi_disable;
1da177e4
LT		 9703
9704 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 9705 goto out_msi_disable;
1da177e4
LT		 9706
9707 rc = ipr_alloc_mem(ioa_cfg);
9708 if (rc < 0) {
9709 dev_err(&pdev->dev,
9710 "Couldn't allocate enough memory for device driver!\n");
f170c684 9711 goto out_msi_disable;
1da177e4
LT		 9712 }
9713
6270e593
BK		 9714 /* Save away PCI config space for use following IOA reset */
9715 rc = pci_save_state(pdev);
9716
9717 if (rc != PCIBIOS_SUCCESSFUL) {
9718 dev_err(&pdev->dev, "Failed to save PCI config space\n");
9719 rc = -EIO;
9720 goto cleanup_nolog;
9721 }
9722
ce155cce
BK		 9723 /*
9724 * If HRRQ updated interrupt is not masked, or reset alert is set,
9725 * the card is in an unknown state and needs a hard reset
9726 */
214777ba
WB		 9727 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
9728 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
9729 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 9730 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
9731 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 9732 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 9733 ioa_cfg->needs_hard_reset = 1;
9734 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
9735 ioa_cfg->ioa_unit_checked = 1;
ce155cce 9736
56d6aa33 9737 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 9738 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 9739 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 9740
05a6538a 9741 if (ioa_cfg->intr_flag == IPR_USE_MSI
9742 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
9743 name_msi_vectors(ioa_cfg);
9744 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
9745 0,
9746 ioa_cfg->vectors_info[0].desc,
9747 &ioa_cfg->hrrq[0]);
9748 if (!rc)
9749 rc = ipr_request_other_msi_irqs(ioa_cfg);
9750 } else {
9751 rc = request_irq(pdev->irq, ipr_isr,
9752 IRQF_SHARED,
9753 IPR_NAME, &ioa_cfg->hrrq[0]);
9754 }
1da177e4
LT		 9755 if (rc) {
9756 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
9757 pdev->irq, rc);
9758 goto cleanup_nolog;
9759 }
9760
463fc696
BK		 9761 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
9762 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
9763 ioa_cfg->needs_warm_reset = 1;
9764 ioa_cfg->reset = ipr_reset_slot_reset;
9765 } else
9766 ioa_cfg->reset = ipr_reset_start_bist;
9767
feccada9 9768 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 9769 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 9770 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 9771
9772 LEAVE;
9773out:
9774 return rc;
9775
9776cleanup_nolog:
9777 ipr_free_mem(ioa_cfg);
95fecd90 9778out_msi_disable:
6270e593 9779 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9780 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9781 pci_disable_msi(pdev);
9782 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9783 pci_disable_msix(pdev);
f170c684
JL		 9784cleanup_nomem:
9785 iounmap(ipr_regs);
6270e593
BK		 9786out_disable:
9787 pci_disable_device(pdev);
1da177e4
LT		 9788out_release_regions:
9789 pci_release_regions(pdev);
9790out_scsi_host_put:
9791 scsi_host_put(host);
1da177e4
LT		 9792 goto out;
9793}
9794
9795/**
9796 * ipr_scan_vsets - Scans for VSET devices
9797 * @ioa_cfg: ioa config struct
9798 *
9799 * Description: Since the VSET resources do not follow SAM in that we can have
9800 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
9801 *
9802 * Return value:
9803 * none
9804 **/
9805static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
9806{
9807 int target, lun;
9808
9809 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
203fa3fe 9810 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++)
1da177e4
LT		 9811 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
9812}
9813
9814/**
9815 * ipr_initiate_ioa_bringdown - Bring down an adapter
9816 * @ioa_cfg: ioa config struct
9817 * @shutdown_type: shutdown type
9818 *
9819 * Description: This function will initiate bringing down the adapter.
9820 * This consists of issuing an IOA shutdown to the adapter
9821 * to flush the cache, and running BIST.
9822 * If the caller needs to wait on the completion of the reset,
9823 * the caller must sleep on the reset_wait_q.
9824 *
9825 * Return value:
9826 * none
9827 **/
9828static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
9829 enum ipr_shutdown_type shutdown_type)
9830{
9831 ENTER;
9832 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9833 ioa_cfg->sdt_state = ABORT_DUMP;
9834 ioa_cfg->reset_retries = 0;
9835 ioa_cfg->in_ioa_bringdown = 1;
9836 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
9837 LEAVE;
9838}
9839
9840/**
9841 * __ipr_remove - Remove a single adapter
9842 * @pdev: pci device struct
9843 *
9844 * Adapter hot plug remove entry point.
9845 *
9846 * Return value:
9847 * none
9848 **/
9849static void __ipr_remove(struct pci_dev *pdev)
9850{
9851 unsigned long host_lock_flags = 0;
9852 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 9853 int i;
feccada9 9854 unsigned long driver_lock_flags;
1da177e4
LT		 9855 ENTER;
9856
9857 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 9858 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 9859 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9860 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9861 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9862 }
9863
bfae7820
BK		 9864 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9865 spin_lock(&ioa_cfg->hrrq[i]._lock);
9866 ioa_cfg->hrrq[i].removing_ioa = 1;
9867 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9868 }
9869 wmb();
1da177e4
LT		 9870 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9871
9872 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9873 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 9874 flush_work(&ioa_cfg->work_q);
9077a944 9875 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 9876 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9877
feccada9 9878 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 9879 list_del(&ioa_cfg->queue);
feccada9 9880 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 9881
9882 if (ioa_cfg->sdt_state == ABORT_DUMP)
9883 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9884 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9885
9886 ipr_free_all_resources(ioa_cfg);
9887
9888 LEAVE;
9889}
9890
9891/**
9892 * ipr_remove - IOA hot plug remove entry point
9893 * @pdev: pci device struct
9894 *
9895 * Adapter hot plug remove entry point.
9896 *
9897 * Return value:
9898 * none
9899 **/
6f039790 9900static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 9901{
9902 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9903
9904 ENTER;
9905
ee959b00 9906 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 9907 &ipr_trace_attr);
ee959b00 9908 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9909 &ipr_dump_attr);
9910 scsi_remove_host(ioa_cfg->host);
9911
9912 __ipr_remove(pdev);
9913
9914 LEAVE;
9915}
9916
9917/**
9918 * ipr_probe - Adapter hot plug add entry point
9919 *
9920 * Return value:
9921 * 0 on success / non-zero on failure
9922 **/
6f039790 9923static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 9924{
9925 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 9926 int rc, i;
1da177e4
LT		 9927
9928 rc = ipr_probe_ioa(pdev, dev_id);
9929
9930 if (rc)
9931 return rc;
9932
9933 ioa_cfg = pci_get_drvdata(pdev);
9934 rc = ipr_probe_ioa_part2(ioa_cfg);
9935
9936 if (rc) {
9937 __ipr_remove(pdev);
9938 return rc;
9939 }
9940
9941 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9942
9943 if (rc) {
9944 __ipr_remove(pdev);
9945 return rc;
9946 }
9947
ee959b00 9948 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9949 &ipr_trace_attr);
9950
9951 if (rc) {
9952 scsi_remove_host(ioa_cfg->host);
9953 __ipr_remove(pdev);
9954 return rc;
9955 }
9956
ee959b00 9957 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9958 &ipr_dump_attr);
9959
9960 if (rc) {
ee959b00 9961 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9962 &ipr_trace_attr);
9963 scsi_remove_host(ioa_cfg->host);
9964 __ipr_remove(pdev);
9965 return rc;
9966 }
9967
9968 scsi_scan_host(ioa_cfg->host);
9969 ipr_scan_vsets(ioa_cfg);
9970 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9971 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 9972 ioa_cfg->host->max_channel = IPR_VSET_BUS;
b53d124a 9973 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
9974
89f8b33c 9975 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 9976 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
9977 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
9978 ioa_cfg->iopoll_weight, ipr_iopoll);
9979 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
9980 }
9981 }
9982
1da177e4
LT		 9983 schedule_work(&ioa_cfg->work_q);
9984 return 0;
9985}
9986
9987/**
9988 * ipr_shutdown - Shutdown handler.
d18c3db5 9989 * @pdev: pci device struct
1da177e4
LT		 9990 *
9991 * This function is invoked upon system shutdown/reboot. It will issue
9992 * an adapter shutdown to the adapter to flush the write cache.
9993 *
9994 * Return value:
9995 * none
9996 **/
d18c3db5 9997static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 9998{
d18c3db5 9999 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 10000 unsigned long lock_flags = 0;
b53d124a 10001 int i;
1da177e4
LT		 10002
10003 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 10004 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 10005 ioa_cfg->iopoll_weight = 0;
10006 for (i = 1; i < ioa_cfg->hrrq_num; i++)
10007 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
10008 }
10009
203fa3fe 10010 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 10011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10012 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10013 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
10014 }
10015
1da177e4
LT		 10016 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
10017 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
10018 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
10019}
10020
6f039790 10021static struct pci_device_id ipr_pci_table[] = {
1da177e4 10022 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10023 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 10024 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10025 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10026 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10027 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10028 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10029 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10030 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10031 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10032 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10033 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10034 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10035 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10036 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10037 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10038 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10039 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10040 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10041 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10042 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10043 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10044 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10045 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10046 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10047 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10048 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10049 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10050 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10051 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10052 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10053 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10054 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10055 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10056 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10057 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10058 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10059 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10060 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10061 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10062 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10063 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10064 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10065 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10066 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10067 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10068 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10069 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10070 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10071 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10072 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10073 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10074 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10075 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10076 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10077 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10078 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10079 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10080 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10081 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10082 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10083 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10084 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10085 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10086 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10087 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10088 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10089 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10090 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10091 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10092 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10093 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10094 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10095 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10096 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10097 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10098 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10099 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10100 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10101 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10102 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10103 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10104 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10105 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10106 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10107 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10108 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10109 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10110 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10111 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10112 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10113 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10114 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10115 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10116 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10117 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10118 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10119 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10120 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10121 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10122 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10123 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10124 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10125 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10126 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
1da177e4
LT		 10127 { }
10128};
10129MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10130
a55b2d21 10131static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10132 .error_detected = ipr_pci_error_detected,
6270e593 10133 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10134 .slot_reset = ipr_pci_slot_reset,
10135};
10136
1da177e4
LT		 10137static struct pci_driver ipr_driver = {
10138 .name = IPR_NAME,
10139 .id_table = ipr_pci_table,
10140 .probe = ipr_probe,
6f039790 10141 .remove = ipr_remove,
d18c3db5 10142 .shutdown = ipr_shutdown,
f8a88b19 10143 .err_handler = &ipr_err_handler,
1da177e4
LT		 10144};
10145
f72919ec
WB		 10146/**
10147 * ipr_halt_done - Shutdown prepare completion
10148 *
10149 * Return value:
10150 * none
10151 **/
10152static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10153{
05a6538a 10154 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10155}
10156
10157/**
10158 * ipr_halt - Issue shutdown prepare to all adapters
10159 *
10160 * Return value:
10161 * NOTIFY_OK on success / NOTIFY_DONE on failure
10162 **/
10163static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10164{
10165 struct ipr_cmnd *ipr_cmd;
10166 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10167 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10168
10169 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10170 return NOTIFY_DONE;
10171
feccada9 10172 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10173
10174 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10175 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
56d6aa33 10176 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
f72919ec
WB		 10177 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10178 continue;
10179 }
10180
10181 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10182 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10183 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10184 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10185 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10186
10187 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10188 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10189 }
feccada9 10190 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10191
10192 return NOTIFY_OK;
10193}
10194
10195static struct notifier_block ipr_notifier = {
10196 ipr_halt, NULL, 0
10197};
10198
1da177e4
LT		 10199/**
10200 * ipr_init - Module entry point
10201 *
10202 * Return value:
10203 * 0 on success / negative value on failure
10204 **/
10205static int __init ipr_init(void)
10206{
10207 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10208 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10209
f72919ec 10210 register_reboot_notifier(&ipr_notifier);
dcbccbde 10211 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10212}
10213
10214/**
10215 * ipr_exit - Module unload
10216 *
10217 * Module unload entry point.
10218 *
10219 * Return value:
10220 * none
10221 **/
10222static void __exit ipr_exit(void)
10223{
f72919ec 10224 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10225 pci_unregister_driver(&ipr_driver);
10226}
10227
10228module_init(ipr_init);
10229module_exit(ipr_exit);
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