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scsi: don't allow setting of queue_depth bigger than can_queue
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / ipr.c
CommitLineData
1da177e4
LT		 1/*
2 * ipr.c -- driver for IBM Power Linux RAID adapters
3 *
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
5 *
6 * Copyright (C) 2003, 2004 IBM Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 */
23
24/*
25 * Notes:
26 *
27 * This driver is used to control the following SCSI adapters:
28 *
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
30 *
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
35 *
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
43 * - Hot spare
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
47 * by adding disks
48 *
49 * Driver Features:
50 * - Tagged command queuing
51 * - Adapter microcode download
52 * - PCI hot plug
53 * - SCSI device hot plug
54 *
55 */
56
1da177e4
LT		 57#include <linux/fs.h>
58#include <linux/init.h>
59#include <linux/types.h>
60#include <linux/errno.h>
61#include <linux/kernel.h>
5a0e3ad6 62#include <linux/slab.h>
4d4dd706 63#include <linux/vmalloc.h>
1da177e4
LT		 64#include <linux/ioport.h>
65#include <linux/delay.h>
66#include <linux/pci.h>
67#include <linux/wait.h>
68#include <linux/spinlock.h>
69#include <linux/sched.h>
70#include <linux/interrupt.h>
71#include <linux/blkdev.h>
72#include <linux/firmware.h>
73#include <linux/module.h>
74#include <linux/moduleparam.h>
35a39691 75#include <linux/libata.h>
0ce3a7e5 76#include <linux/hdreg.h>
f72919ec 77#include <linux/reboot.h>
3e7ebdfa 78#include <linux/stringify.h>
1da177e4
LT		 79#include <asm/io.h>
80#include <asm/irq.h>
81#include <asm/processor.h>
82#include <scsi/scsi.h>
83#include <scsi/scsi_host.h>
84#include <scsi/scsi_tcq.h>
85#include <scsi/scsi_eh.h>
86#include <scsi/scsi_cmnd.h>
1da177e4
LT		 87#include "ipr.h"
88
89/*
90 * Global Data
91 */
b7d68ca3 92static LIST_HEAD(ipr_ioa_head);
1da177e4
LT		 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94static unsigned int ipr_max_speed = 1;
95static int ipr_testmode = 0;
96static unsigned int ipr_fastfail = 0;
5469cb5b 97static unsigned int ipr_transop_timeout = 0;
d3c74871 98static unsigned int ipr_debug = 0;
3e7ebdfa 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
ac09c349 100static unsigned int ipr_dual_ioa_raid = 1;
05a6538a 101static unsigned int ipr_number_of_msix = 2;
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;
3185ea63 2443 struct ipr_hostrcb_type_21_error *error;
1da177e4
LT		 2444
2445 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2446 return;
2447
2448 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2449 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2450
4565e370
WB		 2451 if (ioa_cfg->sis64)
2452 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2453 else
2454 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4 2455
4565e370
WB		 2456 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2457 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
1da177e4
LT		 2458 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2459 scsi_report_bus_reset(ioa_cfg->host,
4565e370 2460 hostrcb->hcam.u.error.fd_res_addr.bus);
1da177e4
LT		 2461 }
2462
2463 error_index = ipr_get_error(ioasc);
2464
2465 if (!ipr_error_table[error_index].log_hcam)
2466 return;
2467
3185ea63 2468 if (ioasc == IPR_IOASC_HW_CMD_FAILED &&
2469 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) {
2470 error = &hostrcb->hcam.u.error64.u.type_21_error;
2471
2472 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST &&
2473 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
2474 return;
2475 }
2476
49dc6a18 2477 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1da177e4
LT		 2478
2479 /* Set indication we have logged an error */
2480 ioa_cfg->errors_logged++;
2481
933916f3 2482 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1da177e4 2483 return;
cf852037
BK		 2484 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2485 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1da177e4
LT		 2486
2487 switch (hostrcb->hcam.overlay_id) {
1da177e4
LT		 2488 case IPR_HOST_RCB_OVERLAY_ID_2:
2489 ipr_log_cache_error(ioa_cfg, hostrcb);
2490 break;
2491 case IPR_HOST_RCB_OVERLAY_ID_3:
2492 ipr_log_config_error(ioa_cfg, hostrcb);
2493 break;
2494 case IPR_HOST_RCB_OVERLAY_ID_4:
2495 case IPR_HOST_RCB_OVERLAY_ID_6:
2496 ipr_log_array_error(ioa_cfg, hostrcb);
2497 break;
b0df54bb
BK		 2498 case IPR_HOST_RCB_OVERLAY_ID_7:
2499 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2500 break;
ee0f05b8
BK		 2501 case IPR_HOST_RCB_OVERLAY_ID_12:
2502 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2503 break;
2504 case IPR_HOST_RCB_OVERLAY_ID_13:
2505 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2506 break;
2507 case IPR_HOST_RCB_OVERLAY_ID_14:
2508 case IPR_HOST_RCB_OVERLAY_ID_16:
2509 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2510 break;
2511 case IPR_HOST_RCB_OVERLAY_ID_17:
2512 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2513 break;
49dc6a18
BK		 2514 case IPR_HOST_RCB_OVERLAY_ID_20:
2515 ipr_log_fabric_error(ioa_cfg, hostrcb);
2516 break;
169b9ec8
WX		 2517 case IPR_HOST_RCB_OVERLAY_ID_21:
2518 ipr_log_sis64_device_error(ioa_cfg, hostrcb);
2519 break;
4565e370
WB		 2520 case IPR_HOST_RCB_OVERLAY_ID_23:
2521 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2522 break;
2523 case IPR_HOST_RCB_OVERLAY_ID_24:
2524 case IPR_HOST_RCB_OVERLAY_ID_26:
2525 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2526 break;
2527 case IPR_HOST_RCB_OVERLAY_ID_30:
2528 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2529 break;
cf852037 2530 case IPR_HOST_RCB_OVERLAY_ID_1:
1da177e4 2531 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1da177e4 2532 default:
a9cfca96 2533 ipr_log_generic_error(ioa_cfg, hostrcb);
1da177e4
LT		 2534 break;
2535 }
2536}
2537
2538/**
2539 * ipr_process_error - Op done function for an adapter error log.
2540 * @ipr_cmd: ipr command struct
2541 *
2542 * This function is the op done function for an error log host
2543 * controlled async from the adapter. It will log the error and
2544 * send the HCAM back to the adapter.
2545 *
2546 * Return value:
2547 * none
2548 **/
2549static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2550{
2551 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2552 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
96d21f00 2553 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4565e370
WB		 2554 u32 fd_ioasc;
2555
2556 if (ioa_cfg->sis64)
2557 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2558 else
2559 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
1da177e4
LT		 2560
2561 list_del(&hostrcb->queue);
05a6538a 2562 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 2563
2564 if (!ioasc) {
2565 ipr_handle_log_data(ioa_cfg, hostrcb);
65f56475
BK		 2566 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2567 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1da177e4
LT		 2568 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2569 dev_err(&ioa_cfg->pdev->dev,
2570 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2571 }
2572
2573 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2574}
2575
2576/**
2577 * ipr_timeout - An internally generated op has timed out.
2578 * @ipr_cmd: ipr command struct
2579 *
2580 * This function blocks host requests and initiates an
2581 * adapter reset.
2582 *
2583 * Return value:
2584 * none
2585 **/
2586static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2587{
2588 unsigned long lock_flags = 0;
2589 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2590
2591 ENTER;
2592 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2593
2594 ioa_cfg->errors_logged++;
2595 dev_err(&ioa_cfg->pdev->dev,
2596 "Adapter being reset due to command timeout.\n");
2597
2598 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2599 ioa_cfg->sdt_state = GET_DUMP;
2600
2601 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2602 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2603
2604 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2605 LEAVE;
2606}
2607
2608/**
2609 * ipr_oper_timeout - Adapter timed out transitioning to operational
2610 * @ipr_cmd: ipr command struct
2611 *
2612 * This function blocks host requests and initiates an
2613 * adapter reset.
2614 *
2615 * Return value:
2616 * none
2617 **/
2618static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2619{
2620 unsigned long lock_flags = 0;
2621 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2622
2623 ENTER;
2624 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2625
2626 ioa_cfg->errors_logged++;
2627 dev_err(&ioa_cfg->pdev->dev,
2628 "Adapter timed out transitioning to operational.\n");
2629
2630 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2631 ioa_cfg->sdt_state = GET_DUMP;
2632
2633 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2634 if (ipr_fastfail)
2635 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2636 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2637 }
2638
2639 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2640 LEAVE;
2641}
2642
1da177e4
LT		 2643/**
2644 * ipr_find_ses_entry - Find matching SES in SES table
2645 * @res: resource entry struct of SES
2646 *
2647 * Return value:
2648 * pointer to SES table entry / NULL on failure
2649 **/
2650static const struct ipr_ses_table_entry *
2651ipr_find_ses_entry(struct ipr_resource_entry *res)
2652{
2653 int i, j, matches;
3e7ebdfa 2654 struct ipr_std_inq_vpids *vpids;
1da177e4
LT		 2655 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2656
2657 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2658 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2659 if (ste->compare_product_id_byte[j] == 'X') {
3e7ebdfa
WB		 2660 vpids = &res->std_inq_data.vpids;
2661 if (vpids->product_id[j] == ste->product_id[j])
1da177e4
LT		 2662 matches++;
2663 else
2664 break;
2665 } else
2666 matches++;
2667 }
2668
2669 if (matches == IPR_PROD_ID_LEN)
2670 return ste;
2671 }
2672
2673 return NULL;
2674}
2675
2676/**
2677 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2678 * @ioa_cfg: ioa config struct
2679 * @bus: SCSI bus
2680 * @bus_width: bus width
2681 *
2682 * Return value:
2683 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2684 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2685 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2686 * max 160MHz = max 320MB/sec).
2687 **/
2688static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2689{
2690 struct ipr_resource_entry *res;
2691 const struct ipr_ses_table_entry *ste;
2692 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2693
2694 /* Loop through each config table entry in the config table buffer */
2695 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 2696 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
1da177e4
LT		 2697 continue;
2698
3e7ebdfa 2699 if (bus != res->bus)
1da177e4
LT		 2700 continue;
2701
2702 if (!(ste = ipr_find_ses_entry(res)))
2703 continue;
2704
2705 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2706 }
2707
2708 return max_xfer_rate;
2709}
2710
2711/**
2712 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2713 * @ioa_cfg: ioa config struct
2714 * @max_delay: max delay in micro-seconds to wait
2715 *
2716 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2717 *
2718 * Return value:
2719 * 0 on success / other on failure
2720 **/
2721static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2722{
2723 volatile u32 pcii_reg;
2724 int delay = 1;
2725
2726 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2727 while (delay < max_delay) {
2728 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2729
2730 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2731 return 0;
2732
2733 /* udelay cannot be used if delay is more than a few milliseconds */
2734 if ((delay / 1000) > MAX_UDELAY_MS)
2735 mdelay(delay / 1000);
2736 else
2737 udelay(delay);
2738
2739 delay += delay;
2740 }
2741 return -EIO;
2742}
2743
dcbad00e
WB		 2744/**
2745 * ipr_get_sis64_dump_data_section - Dump IOA memory
2746 * @ioa_cfg: ioa config struct
2747 * @start_addr: adapter address to dump
2748 * @dest: destination kernel buffer
2749 * @length_in_words: length to dump in 4 byte words
2750 *
2751 * Return value:
2752 * 0 on success
2753 **/
2754static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2755 u32 start_addr,
2756 __be32 *dest, u32 length_in_words)
2757{
2758 int i;
2759
2760 for (i = 0; i < length_in_words; i++) {
2761 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2762 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2763 dest++;
2764 }
2765
2766 return 0;
2767}
2768
1da177e4
LT		 2769/**
2770 * ipr_get_ldump_data_section - Dump IOA memory
2771 * @ioa_cfg: ioa config struct
2772 * @start_addr: adapter address to dump
2773 * @dest: destination kernel buffer
2774 * @length_in_words: length to dump in 4 byte words
2775 *
2776 * Return value:
2777 * 0 on success / -EIO on failure
2778 **/
2779static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2780 u32 start_addr,
2781 __be32 *dest, u32 length_in_words)
2782{
2783 volatile u32 temp_pcii_reg;
2784 int i, delay = 0;
2785
dcbad00e
WB		 2786 if (ioa_cfg->sis64)
2787 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2788 dest, length_in_words);
2789
1da177e4
LT		 2790 /* Write IOA interrupt reg starting LDUMP state */
2791 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
214777ba 2792 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2793
2794 /* Wait for IO debug acknowledge */
2795 if (ipr_wait_iodbg_ack(ioa_cfg,
2796 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2797 dev_err(&ioa_cfg->pdev->dev,
2798 "IOA dump long data transfer timeout\n");
2799 return -EIO;
2800 }
2801
2802 /* Signal LDUMP interlocked - clear IO debug ack */
2803 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2804 ioa_cfg->regs.clr_interrupt_reg);
2805
2806 /* Write Mailbox with starting address */
2807 writel(start_addr, ioa_cfg->ioa_mailbox);
2808
2809 /* Signal address valid - clear IOA Reset alert */
2810 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2811 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2812
2813 for (i = 0; i < length_in_words; i++) {
2814 /* Wait for IO debug acknowledge */
2815 if (ipr_wait_iodbg_ack(ioa_cfg,
2816 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2817 dev_err(&ioa_cfg->pdev->dev,
2818 "IOA dump short data transfer timeout\n");
2819 return -EIO;
2820 }
2821
2822 /* Read data from mailbox and increment destination pointer */
2823 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2824 dest++;
2825
2826 /* For all but the last word of data, signal data received */
2827 if (i < (length_in_words - 1)) {
2828 /* Signal dump data received - Clear IO debug Ack */
2829 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2830 ioa_cfg->regs.clr_interrupt_reg);
2831 }
2832 }
2833
2834 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2835 writel(IPR_UPROCI_RESET_ALERT,
214777ba 2836 ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 2837
2838 writel(IPR_UPROCI_IO_DEBUG_ALERT,
214777ba 2839 ioa_cfg->regs.clr_uproc_interrupt_reg32);
1da177e4
LT		 2840
2841 /* Signal dump data received - Clear IO debug Ack */
2842 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2843 ioa_cfg->regs.clr_interrupt_reg);
2844
2845 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2846 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2847 temp_pcii_reg =
214777ba 2848 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
1da177e4
LT		 2849
2850 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2851 return 0;
2852
2853 udelay(10);
2854 delay += 10;
2855 }
2856
2857 return 0;
2858}
2859
2860#ifdef CONFIG_SCSI_IPR_DUMP
2861/**
2862 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2863 * @ioa_cfg: ioa config struct
2864 * @pci_address: adapter address
2865 * @length: length of data to copy
2866 *
2867 * Copy data from PCI adapter to kernel buffer.
2868 * Note: length MUST be a 4 byte multiple
2869 * Return value:
2870 * 0 on success / other on failure
2871 **/
2872static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2873 unsigned long pci_address, u32 length)
2874{
2875 int bytes_copied = 0;
4d4dd706 2876 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
1da177e4
LT		 2877 __be32 *page;
2878 unsigned long lock_flags = 0;
2879 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2880
4d4dd706
KSS		 2881 if (ioa_cfg->sis64)
2882 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2883 else
2884 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2885
1da177e4 2886 while (bytes_copied < length &&
4d4dd706 2887 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
1da177e4
LT		 2888 if (ioa_dump->page_offset >= PAGE_SIZE ||
2889 ioa_dump->page_offset == 0) {
2890 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2891
2892 if (!page) {
2893 ipr_trace;
2894 return bytes_copied;
2895 }
2896
2897 ioa_dump->page_offset = 0;
2898 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2899 ioa_dump->next_page_index++;
2900 } else
2901 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2902
2903 rem_len = length - bytes_copied;
2904 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2905 cur_len = min(rem_len, rem_page_len);
2906
2907 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2908 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2909 rc = -EIO;
2910 } else {
2911 rc = ipr_get_ldump_data_section(ioa_cfg,
2912 pci_address + bytes_copied,
2913 &page[ioa_dump->page_offset / 4],
2914 (cur_len / sizeof(u32)));
2915 }
2916 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2917
2918 if (!rc) {
2919 ioa_dump->page_offset += cur_len;
2920 bytes_copied += cur_len;
2921 } else {
2922 ipr_trace;
2923 break;
2924 }
2925 schedule();
2926 }
2927
2928 return bytes_copied;
2929}
2930
2931/**
2932 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2933 * @hdr: dump entry header struct
2934 *
2935 * Return value:
2936 * nothing
2937 **/
2938static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2939{
2940 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2941 hdr->num_elems = 1;
2942 hdr->offset = sizeof(*hdr);
2943 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2944}
2945
2946/**
2947 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2948 * @ioa_cfg: ioa config struct
2949 * @driver_dump: driver dump struct
2950 *
2951 * Return value:
2952 * nothing
2953 **/
2954static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2955 struct ipr_driver_dump *driver_dump)
2956{
2957 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2958
2959 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2960 driver_dump->ioa_type_entry.hdr.len =
2961 sizeof(struct ipr_dump_ioa_type_entry) -
2962 sizeof(struct ipr_dump_entry_header);
2963 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2964 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2965 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2966 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2967 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2968 ucode_vpd->minor_release[1];
2969 driver_dump->hdr.num_entries++;
2970}
2971
2972/**
2973 * ipr_dump_version_data - Fill in the driver version in the dump.
2974 * @ioa_cfg: ioa config struct
2975 * @driver_dump: driver dump struct
2976 *
2977 * Return value:
2978 * nothing
2979 **/
2980static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2981 struct ipr_driver_dump *driver_dump)
2982{
2983 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2984 driver_dump->version_entry.hdr.len =
2985 sizeof(struct ipr_dump_version_entry) -
2986 sizeof(struct ipr_dump_entry_header);
2987 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2988 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2989 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2990 driver_dump->hdr.num_entries++;
2991}
2992
2993/**
2994 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2995 * @ioa_cfg: ioa config struct
2996 * @driver_dump: driver dump struct
2997 *
2998 * Return value:
2999 * nothing
3000 **/
3001static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
3002 struct ipr_driver_dump *driver_dump)
3003{
3004 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
3005 driver_dump->trace_entry.hdr.len =
3006 sizeof(struct ipr_dump_trace_entry) -
3007 sizeof(struct ipr_dump_entry_header);
3008 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3009 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
3010 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
3011 driver_dump->hdr.num_entries++;
3012}
3013
3014/**
3015 * ipr_dump_location_data - Fill in the IOA location in the dump.
3016 * @ioa_cfg: ioa config struct
3017 * @driver_dump: driver dump struct
3018 *
3019 * Return value:
3020 * nothing
3021 **/
3022static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
3023 struct ipr_driver_dump *driver_dump)
3024{
3025 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
3026 driver_dump->location_entry.hdr.len =
3027 sizeof(struct ipr_dump_location_entry) -
3028 sizeof(struct ipr_dump_entry_header);
3029 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
3030 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
71610f55 3031 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
1da177e4
LT		 3032 driver_dump->hdr.num_entries++;
3033}
3034
3035/**
3036 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3037 * @ioa_cfg: ioa config struct
3038 * @dump: dump struct
3039 *
3040 * Return value:
3041 * nothing
3042 **/
3043static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3044{
3045 unsigned long start_addr, sdt_word;
3046 unsigned long lock_flags = 0;
3047 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3048 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
4d4dd706
KSS		 3049 u32 num_entries, max_num_entries, start_off, end_off;
3050 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
1da177e4 3051 struct ipr_sdt *sdt;
dcbad00e 3052 int valid = 1;
1da177e4
LT		 3053 int i;
3054
3055 ENTER;
3056
3057 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3058
41e9a696 3059 if (ioa_cfg->sdt_state != READ_DUMP) {
1da177e4
LT		 3060 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3061 return;
3062 }
3063
110def85
WB		 3064 if (ioa_cfg->sis64) {
3065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3066 ssleep(IPR_DUMP_DELAY_SECONDS);
3067 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3068 }
3069
1da177e4
LT		 3070 start_addr = readl(ioa_cfg->ioa_mailbox);
3071
dcbad00e 3072 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
1da177e4
LT		 3073 dev_err(&ioa_cfg->pdev->dev,
3074 "Invalid dump table format: %lx\n", start_addr);
3075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3076 return;
3077 }
3078
3079 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
3080
3081 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
3082
3083 /* Initialize the overall dump header */
3084 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
3085 driver_dump->hdr.num_entries = 1;
3086 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
3087 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
3088 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
3089 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
3090
3091 ipr_dump_version_data(ioa_cfg, driver_dump);
3092 ipr_dump_location_data(ioa_cfg, driver_dump);
3093 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
3094 ipr_dump_trace_data(ioa_cfg, driver_dump);
3095
3096 /* Update dump_header */
3097 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
3098
3099 /* IOA Dump entry */
3100 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
1da177e4
LT		 3101 ioa_dump->hdr.len = 0;
3102 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
3103 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
3104
3105 /* First entries in sdt are actually a list of dump addresses and
3106 lengths to gather the real dump data. sdt represents the pointer
3107 to the ioa generated dump table. Dump data will be extracted based
3108 on entries in this table */
3109 sdt = &ioa_dump->sdt;
3110
4d4dd706
KSS		 3111 if (ioa_cfg->sis64) {
3112 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
3113 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
3114 } else {
3115 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
3116 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
3117 }
3118
3119 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
3120 (max_num_entries * sizeof(struct ipr_sdt_entry));
1da177e4 3121 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
4d4dd706 3122 bytes_to_copy / sizeof(__be32));
1da177e4
LT		 3123
3124 /* Smart Dump table is ready to use and the first entry is valid */
dcbad00e
WB		 3125 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
3126 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 3127 dev_err(&ioa_cfg->pdev->dev,
3128 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
3129 rc, be32_to_cpu(sdt->hdr.state));
3130 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
3131 ioa_cfg->sdt_state = DUMP_OBTAINED;
3132 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3133 return;
3134 }
3135
3136 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
3137
4d4dd706
KSS		 3138 if (num_entries > max_num_entries)
3139 num_entries = max_num_entries;
3140
3141 /* Update dump length to the actual data to be copied */
3142 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3143 if (ioa_cfg->sis64)
3144 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3145 else
3146 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
1da177e4
LT		 3147
3148 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3149
3150 for (i = 0; i < num_entries; i++) {
4d4dd706 3151 if (ioa_dump->hdr.len > max_dump_size) {
1da177e4
LT		 3152 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3153 break;
3154 }
3155
3156 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
dcbad00e
WB		 3157 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3158 if (ioa_cfg->sis64)
3159 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3160 else {
3161 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3162 end_off = be32_to_cpu(sdt->entry[i].end_token);
3163
3164 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3165 bytes_to_copy = end_off - start_off;
3166 else
3167 valid = 0;
3168 }
3169 if (valid) {
4d4dd706 3170 if (bytes_to_copy > max_dump_size) {
1da177e4
LT		 3171 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3172 continue;
3173 }
3174
3175 /* Copy data from adapter to driver buffers */
3176 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3177 bytes_to_copy);
3178
3179 ioa_dump->hdr.len += bytes_copied;
3180
3181 if (bytes_copied != bytes_to_copy) {
3182 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3183 break;
3184 }
3185 }
3186 }
3187 }
3188
3189 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3190
3191 /* Update dump_header */
3192 driver_dump->hdr.len += ioa_dump->hdr.len;
3193 wmb();
3194 ioa_cfg->sdt_state = DUMP_OBTAINED;
3195 LEAVE;
3196}
3197
3198#else
203fa3fe 3199#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
1da177e4
LT		 3200#endif
3201
3202/**
3203 * ipr_release_dump - Free adapter dump memory
3204 * @kref: kref struct
3205 *
3206 * Return value:
3207 * nothing
3208 **/
3209static void ipr_release_dump(struct kref *kref)
3210{
203fa3fe 3211 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
1da177e4
LT		 3212 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3213 unsigned long lock_flags = 0;
3214 int i;
3215
3216 ENTER;
3217 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3218 ioa_cfg->dump = NULL;
3219 ioa_cfg->sdt_state = INACTIVE;
3220 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3221
3222 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3223 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3224
4d4dd706 3225 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 3226 kfree(dump);
3227 LEAVE;
3228}
3229
3230/**
3231 * ipr_worker_thread - Worker thread
c4028958 3232 * @work: ioa config struct
1da177e4
LT		 3233 *
3234 * Called at task level from a work thread. This function takes care
3235 * of adding and removing device from the mid-layer as configuration
3236 * changes are detected by the adapter.
3237 *
3238 * Return value:
3239 * nothing
3240 **/
c4028958 3241static void ipr_worker_thread(struct work_struct *work)
1da177e4
LT		 3242{
3243 unsigned long lock_flags;
3244 struct ipr_resource_entry *res;
3245 struct scsi_device *sdev;
3246 struct ipr_dump *dump;
c4028958
DH		 3247 struct ipr_ioa_cfg *ioa_cfg =
3248 container_of(work, struct ipr_ioa_cfg, work_q);
1da177e4
LT		 3249 u8 bus, target, lun;
3250 int did_work;
3251
3252 ENTER;
3253 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3254
41e9a696 3255 if (ioa_cfg->sdt_state == READ_DUMP) {
1da177e4
LT		 3256 dump = ioa_cfg->dump;
3257 if (!dump) {
3258 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3259 return;
3260 }
3261 kref_get(&dump->kref);
3262 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3263 ipr_get_ioa_dump(ioa_cfg, dump);
3264 kref_put(&dump->kref, ipr_release_dump);
3265
3266 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4c647e90 3267 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
1da177e4
LT		 3268 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3269 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3270 return;
3271 }
3272
3273restart:
3274 do {
3275 did_work = 0;
56d6aa33 3276 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
3277 !ioa_cfg->allow_ml_add_del) {
1da177e4
LT		 3278 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3279 return;
3280 }
3281
3282 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3283 if (res->del_from_ml && res->sdev) {
3284 did_work = 1;
3285 sdev = res->sdev;
3286 if (!scsi_device_get(sdev)) {
5767a1c4
KSS		 3287 if (!res->add_to_ml)
3288 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3289 else
3290 res->del_from_ml = 0;
1da177e4
LT		 3291 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3292 scsi_remove_device(sdev);
3293 scsi_device_put(sdev);
3294 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3295 }
3296 break;
3297 }
3298 }
203fa3fe 3299 } while (did_work);
1da177e4
LT		 3300
3301 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3302 if (res->add_to_ml) {
3e7ebdfa
WB		 3303 bus = res->bus;
3304 target = res->target;
3305 lun = res->lun;
1121b794 3306 res->add_to_ml = 0;
1da177e4
LT		 3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3308 scsi_add_device(ioa_cfg->host, bus, target, lun);
3309 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3310 goto restart;
3311 }
3312 }
3313
3314 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
ee959b00 3315 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
1da177e4
LT		 3316 LEAVE;
3317}
3318
3319#ifdef CONFIG_SCSI_IPR_TRACE
3320/**
3321 * ipr_read_trace - Dump the adapter trace
2c3c8bea 3322 * @filp: open sysfs file
1da177e4 3323 * @kobj: kobject struct
91a69029 3324 * @bin_attr: bin_attribute struct
1da177e4
LT		 3325 * @buf: buffer
3326 * @off: offset
3327 * @count: buffer size
3328 *
3329 * Return value:
3330 * number of bytes printed to buffer
3331 **/
2c3c8bea 3332static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
91a69029
ZR		 3333 struct bin_attribute *bin_attr,
3334 char *buf, loff_t off, size_t count)
1da177e4 3335{
ee959b00
TJ		 3336 struct device *dev = container_of(kobj, struct device, kobj);
3337 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3338 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3339 unsigned long lock_flags = 0;
d777aaf3 3340 ssize_t ret;
1da177e4
LT		 3341
3342 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3343 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3344 IPR_TRACE_SIZE);
1da177e4 3345 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
d777aaf3
AM		 3346
3347 return ret;
1da177e4
LT		 3348}
3349
3350static struct bin_attribute ipr_trace_attr = {
3351 .attr = {
3352 .name = "trace",
3353 .mode = S_IRUGO,
3354 },
3355 .size = 0,
3356 .read = ipr_read_trace,
3357};
3358#endif
3359
3360/**
3361 * ipr_show_fw_version - Show the firmware version
ee959b00
TJ		 3362 * @dev: class device struct
3363 * @buf: buffer
1da177e4
LT		 3364 *
3365 * Return value:
3366 * number of bytes printed to buffer
3367 **/
ee959b00
TJ		 3368static ssize_t ipr_show_fw_version(struct device *dev,
3369 struct device_attribute *attr, char *buf)
1da177e4 3370{
ee959b00 3371 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3372 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3373 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3374 unsigned long lock_flags = 0;
3375 int len;
3376
3377 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3378 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3379 ucode_vpd->major_release, ucode_vpd->card_type,
3380 ucode_vpd->minor_release[0],
3381 ucode_vpd->minor_release[1]);
3382 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3383 return len;
3384}
3385
ee959b00 3386static struct device_attribute ipr_fw_version_attr = {
1da177e4
LT		 3387 .attr = {
3388 .name = "fw_version",
3389 .mode = S_IRUGO,
3390 },
3391 .show = ipr_show_fw_version,
3392};
3393
3394/**
3395 * ipr_show_log_level - Show the adapter's error logging level
ee959b00
TJ		 3396 * @dev: class device struct
3397 * @buf: buffer
1da177e4
LT		 3398 *
3399 * Return value:
3400 * number of bytes printed to buffer
3401 **/
ee959b00
TJ		 3402static ssize_t ipr_show_log_level(struct device *dev,
3403 struct device_attribute *attr, char *buf)
1da177e4 3404{
ee959b00 3405 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3406 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3407 unsigned long lock_flags = 0;
3408 int len;
3409
3410 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3411 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3412 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3413 return len;
3414}
3415
3416/**
3417 * ipr_store_log_level - Change the adapter's error logging level
ee959b00
TJ		 3418 * @dev: class device struct
3419 * @buf: buffer
1da177e4
LT		 3420 *
3421 * Return value:
3422 * number of bytes printed to buffer
3423 **/
ee959b00 3424static ssize_t ipr_store_log_level(struct device *dev,
203fa3fe 3425 struct device_attribute *attr,
1da177e4
LT		 3426 const char *buf, size_t count)
3427{
ee959b00 3428 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3429 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3430 unsigned long lock_flags = 0;
3431
3432 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3433 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3434 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3435 return strlen(buf);
3436}
3437
ee959b00 3438static struct device_attribute ipr_log_level_attr = {
1da177e4
LT		 3439 .attr = {
3440 .name = "log_level",
3441 .mode = S_IRUGO | S_IWUSR,
3442 },
3443 .show = ipr_show_log_level,
3444 .store = ipr_store_log_level
3445};
3446
3447/**
3448 * ipr_store_diagnostics - IOA Diagnostics interface
ee959b00
TJ		 3449 * @dev: device struct
3450 * @buf: buffer
3451 * @count: buffer size
1da177e4
LT		 3452 *
3453 * This function will reset the adapter and wait a reasonable
3454 * amount of time for any errors that the adapter might log.
3455 *
3456 * Return value:
3457 * count on success / other on failure
3458 **/
ee959b00
TJ		 3459static ssize_t ipr_store_diagnostics(struct device *dev,
3460 struct device_attribute *attr,
1da177e4
LT		 3461 const char *buf, size_t count)
3462{
ee959b00 3463 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3464 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3465 unsigned long lock_flags = 0;
3466 int rc = count;
3467
3468 if (!capable(CAP_SYS_ADMIN))
3469 return -EACCES;
3470
1da177e4 3471 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3472 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3473 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3475 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3476 }
3477
1da177e4
LT		 3478 ioa_cfg->errors_logged = 0;
3479 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3480
3481 if (ioa_cfg->in_reset_reload) {
3482 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3483 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3484
3485 /* Wait for a second for any errors to be logged */
3486 msleep(1000);
3487 } else {
3488 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3489 return -EIO;
3490 }
3491
3492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3493 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3494 rc = -EIO;
3495 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3496
3497 return rc;
3498}
3499
ee959b00 3500static struct device_attribute ipr_diagnostics_attr = {
1da177e4
LT		 3501 .attr = {
3502 .name = "run_diagnostics",
3503 .mode = S_IWUSR,
3504 },
3505 .store = ipr_store_diagnostics
3506};
3507
f37eb54b
BK		 3508/**
3509 * ipr_show_adapter_state - Show the adapter's state
ee959b00
TJ		 3510 * @class_dev: device struct
3511 * @buf: buffer
f37eb54b
BK		 3512 *
3513 * Return value:
3514 * number of bytes printed to buffer
3515 **/
ee959b00
TJ		 3516static ssize_t ipr_show_adapter_state(struct device *dev,
3517 struct device_attribute *attr, char *buf)
f37eb54b 3518{
ee959b00 3519 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3520 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3521 unsigned long lock_flags = 0;
3522 int len;
3523
3524 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3525 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
f37eb54b
BK		 3526 len = snprintf(buf, PAGE_SIZE, "offline\n");
3527 else
3528 len = snprintf(buf, PAGE_SIZE, "online\n");
3529 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3530 return len;
3531}
3532
3533/**
3534 * ipr_store_adapter_state - Change adapter state
ee959b00
TJ		 3535 * @dev: device struct
3536 * @buf: buffer
3537 * @count: buffer size
f37eb54b
BK		 3538 *
3539 * This function will change the adapter's state.
3540 *
3541 * Return value:
3542 * count on success / other on failure
3543 **/
ee959b00
TJ		 3544static ssize_t ipr_store_adapter_state(struct device *dev,
3545 struct device_attribute *attr,
f37eb54b
BK		 3546 const char *buf, size_t count)
3547{
ee959b00 3548 struct Scsi_Host *shost = class_to_shost(dev);
f37eb54b
BK		 3549 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3550 unsigned long lock_flags;
56d6aa33 3551 int result = count, i;
f37eb54b
BK		 3552
3553 if (!capable(CAP_SYS_ADMIN))
3554 return -EACCES;
3555
3556 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
56d6aa33 3557 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead &&
3558 !strncmp(buf, "online", 6)) {
3559 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
3560 spin_lock(&ioa_cfg->hrrq[i]._lock);
3561 ioa_cfg->hrrq[i].ioa_is_dead = 0;
3562 spin_unlock(&ioa_cfg->hrrq[i]._lock);
3563 }
3564 wmb();
f37eb54b
BK		 3565 ioa_cfg->reset_retries = 0;
3566 ioa_cfg->in_ioa_bringdown = 0;
3567 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3568 }
3569 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3570 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3571
3572 return result;
3573}
3574
ee959b00 3575static struct device_attribute ipr_ioa_state_attr = {
f37eb54b 3576 .attr = {
49dd0961 3577 .name = "online_state",
f37eb54b
BK		 3578 .mode = S_IRUGO | S_IWUSR,
3579 },
3580 .show = ipr_show_adapter_state,
3581 .store = ipr_store_adapter_state
3582};
3583
1da177e4
LT		 3584/**
3585 * ipr_store_reset_adapter - Reset the adapter
ee959b00
TJ		 3586 * @dev: device struct
3587 * @buf: buffer
3588 * @count: buffer size
1da177e4
LT		 3589 *
3590 * This function will reset the adapter.
3591 *
3592 * Return value:
3593 * count on success / other on failure
3594 **/
ee959b00
TJ		 3595static ssize_t ipr_store_reset_adapter(struct device *dev,
3596 struct device_attribute *attr,
1da177e4
LT		 3597 const char *buf, size_t count)
3598{
ee959b00 3599 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3600 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3601 unsigned long lock_flags;
3602 int result = count;
3603
3604 if (!capable(CAP_SYS_ADMIN))
3605 return -EACCES;
3606
3607 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3608 if (!ioa_cfg->in_reset_reload)
3609 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3610 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3611 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3612
3613 return result;
3614}
3615
ee959b00 3616static struct device_attribute ipr_ioa_reset_attr = {
1da177e4
LT		 3617 .attr = {
3618 .name = "reset_host",
3619 .mode = S_IWUSR,
3620 },
3621 .store = ipr_store_reset_adapter
3622};
3623
b53d124a 3624static int ipr_iopoll(struct blk_iopoll *iop, int budget);
3625 /**
3626 * ipr_show_iopoll_weight - Show ipr polling mode
3627 * @dev: class device struct
3628 * @buf: buffer
3629 *
3630 * Return value:
3631 * number of bytes printed to buffer
3632 **/
3633static ssize_t ipr_show_iopoll_weight(struct device *dev,
3634 struct device_attribute *attr, char *buf)
3635{
3636 struct Scsi_Host *shost = class_to_shost(dev);
3637 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3638 unsigned long lock_flags = 0;
3639 int len;
3640
3641 spin_lock_irqsave(shost->host_lock, lock_flags);
3642 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight);
3643 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3644
3645 return len;
3646}
3647
3648/**
3649 * ipr_store_iopoll_weight - Change the adapter's polling mode
3650 * @dev: class device struct
3651 * @buf: buffer
3652 *
3653 * Return value:
3654 * number of bytes printed to buffer
3655 **/
3656static ssize_t ipr_store_iopoll_weight(struct device *dev,
3657 struct device_attribute *attr,
3658 const char *buf, size_t count)
3659{
3660 struct Scsi_Host *shost = class_to_shost(dev);
3661 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3662 unsigned long user_iopoll_weight;
3663 unsigned long lock_flags = 0;
3664 int i;
3665
3666 if (!ioa_cfg->sis64) {
3667 dev_info(&ioa_cfg->pdev->dev, "blk-iopoll not supported on this adapter\n");
3668 return -EINVAL;
3669 }
3670 if (kstrtoul(buf, 10, &user_iopoll_weight))
3671 return -EINVAL;
3672
3673 if (user_iopoll_weight > 256) {
3674 dev_info(&ioa_cfg->pdev->dev, "Invalid blk-iopoll weight. It must be less than 256\n");
3675 return -EINVAL;
3676 }
3677
3678 if (user_iopoll_weight == ioa_cfg->iopoll_weight) {
3679 dev_info(&ioa_cfg->pdev->dev, "Current blk-iopoll weight has the same weight\n");
3680 return strlen(buf);
3681 }
3682
89f8b33c 3683 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3684 for (i = 1; i < ioa_cfg->hrrq_num; i++)
3685 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
3686 }
3687
3688 spin_lock_irqsave(shost->host_lock, lock_flags);
3689 ioa_cfg->iopoll_weight = user_iopoll_weight;
89f8b33c 3690 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 3691 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
3692 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
3693 ioa_cfg->iopoll_weight, ipr_iopoll);
3694 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
3695 }
3696 }
3697 spin_unlock_irqrestore(shost->host_lock, lock_flags);
3698
3699 return strlen(buf);
3700}
3701
3702static struct device_attribute ipr_iopoll_weight_attr = {
3703 .attr = {
3704 .name = "iopoll_weight",
3705 .mode = S_IRUGO | S_IWUSR,
3706 },
3707 .show = ipr_show_iopoll_weight,
3708 .store = ipr_store_iopoll_weight
3709};
3710
1da177e4
LT		 3711/**
3712 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3713 * @buf_len: buffer length
3714 *
3715 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3716 * list to use for microcode download
3717 *
3718 * Return value:
3719 * pointer to sglist / NULL on failure
3720 **/
3721static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3722{
3723 int sg_size, order, bsize_elem, num_elem, i, j;
3724 struct ipr_sglist *sglist;
3725 struct scatterlist *scatterlist;
3726 struct page *page;
3727
3728 /* Get the minimum size per scatter/gather element */
3729 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3730
3731 /* Get the actual size per element */
3732 order = get_order(sg_size);
3733
3734 /* Determine the actual number of bytes per element */
3735 bsize_elem = PAGE_SIZE * (1 << order);
3736
3737 /* Determine the actual number of sg entries needed */
3738 if (buf_len % bsize_elem)
3739 num_elem = (buf_len / bsize_elem) + 1;
3740 else
3741 num_elem = buf_len / bsize_elem;
3742
3743 /* Allocate a scatter/gather list for the DMA */
0bc42e35 3744 sglist = kzalloc(sizeof(struct ipr_sglist) +
1da177e4
LT		 3745 (sizeof(struct scatterlist) * (num_elem - 1)),
3746 GFP_KERNEL);
3747
3748 if (sglist == NULL) {
3749 ipr_trace;
3750 return NULL;
3751 }
3752
1da177e4 3753 scatterlist = sglist->scatterlist;
45711f1a 3754 sg_init_table(scatterlist, num_elem);
1da177e4
LT		 3755
3756 sglist->order = order;
3757 sglist->num_sg = num_elem;
3758
3759 /* Allocate a bunch of sg elements */
3760 for (i = 0; i < num_elem; i++) {
3761 page = alloc_pages(GFP_KERNEL, order);
3762 if (!page) {
3763 ipr_trace;
3764
3765 /* Free up what we already allocated */
3766 for (j = i - 1; j >= 0; j--)
45711f1a 3767 __free_pages(sg_page(&scatterlist[j]), order);
1da177e4
LT		 3768 kfree(sglist);
3769 return NULL;
3770 }
3771
642f1490 3772 sg_set_page(&scatterlist[i], page, 0, 0);
1da177e4
LT		 3773 }
3774
3775 return sglist;
3776}
3777
3778/**
3779 * ipr_free_ucode_buffer - Frees a microcode download buffer
3780 * @p_dnld: scatter/gather list pointer
3781 *
3782 * Free a DMA'able ucode download buffer previously allocated with
3783 * ipr_alloc_ucode_buffer
3784 *
3785 * Return value:
3786 * nothing
3787 **/
3788static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3789{
3790 int i;
3791
3792 for (i = 0; i < sglist->num_sg; i++)
45711f1a 3793 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
1da177e4
LT		 3794
3795 kfree(sglist);
3796}
3797
3798/**
3799 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3800 * @sglist: scatter/gather list pointer
3801 * @buffer: buffer pointer
3802 * @len: buffer length
3803 *
3804 * Copy a microcode image from a user buffer into a buffer allocated by
3805 * ipr_alloc_ucode_buffer
3806 *
3807 * Return value:
3808 * 0 on success / other on failure
3809 **/
3810static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3811 u8 *buffer, u32 len)
3812{
3813 int bsize_elem, i, result = 0;
3814 struct scatterlist *scatterlist;
3815 void *kaddr;
3816
3817 /* Determine the actual number of bytes per element */
3818 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3819
3820 scatterlist = sglist->scatterlist;
3821
3822 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
45711f1a
JA		 3823 struct page *page = sg_page(&scatterlist[i]);
3824
3825 kaddr = kmap(page);
1da177e4 3826 memcpy(kaddr, buffer, bsize_elem);
45711f1a 3827 kunmap(page);
1da177e4
LT		 3828
3829 scatterlist[i].length = bsize_elem;
3830
3831 if (result != 0) {
3832 ipr_trace;
3833 return result;
3834 }
3835 }
3836
3837 if (len % bsize_elem) {
45711f1a
JA		 3838 struct page *page = sg_page(&scatterlist[i]);
3839
3840 kaddr = kmap(page);
1da177e4 3841 memcpy(kaddr, buffer, len % bsize_elem);
45711f1a 3842 kunmap(page);
1da177e4
LT		 3843
3844 scatterlist[i].length = len % bsize_elem;
3845 }
3846
3847 sglist->buffer_len = len;
3848 return result;
3849}
3850
a32c055f
WB		 3851/**
3852 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3853 * @ipr_cmd: ipr command struct
3854 * @sglist: scatter/gather list
3855 *
3856 * Builds a microcode download IOA data list (IOADL).
3857 *
3858 **/
3859static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3860 struct ipr_sglist *sglist)
3861{
3862 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3863 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3864 struct scatterlist *scatterlist = sglist->scatterlist;
3865 int i;
3866
3867 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3868 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3869 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3870
3871 ioarcb->ioadl_len =
3872 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3873 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3874 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3875 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3876 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3877 }
3878
3879 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3880}
3881
1da177e4 3882/**
12baa420 3883 * ipr_build_ucode_ioadl - Build a microcode download IOADL
1da177e4
LT		 3884 * @ipr_cmd: ipr command struct
3885 * @sglist: scatter/gather list
1da177e4 3886 *
12baa420 3887 * Builds a microcode download IOA data list (IOADL).
1da177e4 3888 *
1da177e4 3889 **/
12baa420
BK		 3890static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3891 struct ipr_sglist *sglist)
1da177e4 3892{
1da177e4 3893 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 3894 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4
LT		 3895 struct scatterlist *scatterlist = sglist->scatterlist;
3896 int i;
3897
12baa420 3898 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
1da177e4 3899 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 3900 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3901
3902 ioarcb->ioadl_len =
1da177e4
LT		 3903 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3904
3905 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3906 ioadl[i].flags_and_data_len =
3907 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3908 ioadl[i].address =
3909 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3910 }
3911
12baa420
BK		 3912 ioadl[i-1].flags_and_data_len |=
3913 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3914}
3915
3916/**
3917 * ipr_update_ioa_ucode - Update IOA's microcode
3918 * @ioa_cfg: ioa config struct
3919 * @sglist: scatter/gather list
3920 *
3921 * Initiate an adapter reset to update the IOA's microcode
3922 *
3923 * Return value:
3924 * 0 on success / -EIO on failure
3925 **/
3926static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3927 struct ipr_sglist *sglist)
3928{
3929 unsigned long lock_flags;
3930
3931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 3932 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 3933 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3934 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3935 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3936 }
12baa420
BK		 3937
3938 if (ioa_cfg->ucode_sglist) {
3939 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3940 dev_err(&ioa_cfg->pdev->dev,
3941 "Microcode download already in progress\n");
3942 return -EIO;
1da177e4 3943 }
12baa420 3944
d73341bf
AB		 3945 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev,
3946 sglist->scatterlist, sglist->num_sg,
3947 DMA_TO_DEVICE);
12baa420
BK		 3948
3949 if (!sglist->num_dma_sg) {
3950 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3951 dev_err(&ioa_cfg->pdev->dev,
3952 "Failed to map microcode download buffer!\n");
1da177e4
LT		 3953 return -EIO;
3954 }
3955
12baa420
BK		 3956 ioa_cfg->ucode_sglist = sglist;
3957 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3958 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3959 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3960
3961 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3962 ioa_cfg->ucode_sglist = NULL;
3963 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4
LT		 3964 return 0;
3965}
3966
3967/**
3968 * ipr_store_update_fw - Update the firmware on the adapter
ee959b00
TJ		 3969 * @class_dev: device struct
3970 * @buf: buffer
3971 * @count: buffer size
1da177e4
LT		 3972 *
3973 * This function will update the firmware on the adapter.
3974 *
3975 * Return value:
3976 * count on success / other on failure
3977 **/
ee959b00
TJ		 3978static ssize_t ipr_store_update_fw(struct device *dev,
3979 struct device_attribute *attr,
3980 const char *buf, size_t count)
1da177e4 3981{
ee959b00 3982 struct Scsi_Host *shost = class_to_shost(dev);
1da177e4
LT		 3983 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3984 struct ipr_ucode_image_header *image_hdr;
3985 const struct firmware *fw_entry;
3986 struct ipr_sglist *sglist;
1da177e4
LT		 3987 char fname[100];
3988 char *src;
3989 int len, result, dnld_size;
3990
3991 if (!capable(CAP_SYS_ADMIN))
3992 return -EACCES;
3993
3994 len = snprintf(fname, 99, "%s", buf);
3995 fname[len-1] = '\0';
3996
203fa3fe 3997 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
1da177e4
LT		 3998 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3999 return -EIO;
4000 }
4001
4002 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
4003
1da177e4
LT		 4004 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
4005 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
4006 sglist = ipr_alloc_ucode_buffer(dnld_size);
4007
4008 if (!sglist) {
4009 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
4010 release_firmware(fw_entry);
4011 return -ENOMEM;
4012 }
4013
4014 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
4015
4016 if (result) {
4017 dev_err(&ioa_cfg->pdev->dev,
4018 "Microcode buffer copy to DMA buffer failed\n");
12baa420 4019 goto out;
1da177e4
LT		 4020 }
4021
14ed9cc7
WB		 4022 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
4023
12baa420 4024 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
1da177e4 4025
12baa420
BK		 4026 if (!result)
4027 result = count;
4028out:
1da177e4
LT		 4029 ipr_free_ucode_buffer(sglist);
4030 release_firmware(fw_entry);
12baa420 4031 return result;
1da177e4
LT		 4032}
4033
ee959b00 4034static struct device_attribute ipr_update_fw_attr = {
1da177e4
LT		 4035 .attr = {
4036 .name = "update_fw",
4037 .mode = S_IWUSR,
4038 },
4039 .store = ipr_store_update_fw
4040};
4041
75576bb9
WB		 4042/**
4043 * ipr_show_fw_type - Show the adapter's firmware type.
4044 * @dev: class device struct
4045 * @buf: buffer
4046 *
4047 * Return value:
4048 * number of bytes printed to buffer
4049 **/
4050static ssize_t ipr_show_fw_type(struct device *dev,
4051 struct device_attribute *attr, char *buf)
4052{
4053 struct Scsi_Host *shost = class_to_shost(dev);
4054 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4055 unsigned long lock_flags = 0;
4056 int len;
4057
4058 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4059 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
4060 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4061 return len;
4062}
4063
4064static struct device_attribute ipr_ioa_fw_type_attr = {
4065 .attr = {
4066 .name = "fw_type",
4067 .mode = S_IRUGO,
4068 },
4069 .show = ipr_show_fw_type
4070};
4071
ee959b00 4072static struct device_attribute *ipr_ioa_attrs[] = {
1da177e4
LT		 4073 &ipr_fw_version_attr,
4074 &ipr_log_level_attr,
4075 &ipr_diagnostics_attr,
f37eb54b 4076 &ipr_ioa_state_attr,
1da177e4
LT		 4077 &ipr_ioa_reset_attr,
4078 &ipr_update_fw_attr,
75576bb9 4079 &ipr_ioa_fw_type_attr,
b53d124a 4080 &ipr_iopoll_weight_attr,
1da177e4
LT		 4081 NULL,
4082};
4083
4084#ifdef CONFIG_SCSI_IPR_DUMP
4085/**
4086 * ipr_read_dump - Dump the adapter
2c3c8bea 4087 * @filp: open sysfs file
1da177e4 4088 * @kobj: kobject struct
91a69029 4089 * @bin_attr: bin_attribute struct
1da177e4
LT		 4090 * @buf: buffer
4091 * @off: offset
4092 * @count: buffer size
4093 *
4094 * Return value:
4095 * number of bytes printed to buffer
4096 **/
2c3c8bea 4097static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4098 struct bin_attribute *bin_attr,
4099 char *buf, loff_t off, size_t count)
1da177e4 4100{
ee959b00 4101 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4102 struct Scsi_Host *shost = class_to_shost(cdev);
4103 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4104 struct ipr_dump *dump;
4105 unsigned long lock_flags = 0;
4106 char *src;
4d4dd706 4107 int len, sdt_end;
1da177e4
LT		 4108 size_t rc = count;
4109
4110 if (!capable(CAP_SYS_ADMIN))
4111 return -EACCES;
4112
4113 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4114 dump = ioa_cfg->dump;
4115
4116 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4117 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4118 return 0;
4119 }
4120 kref_get(&dump->kref);
4121 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4122
4123 if (off > dump->driver_dump.hdr.len) {
4124 kref_put(&dump->kref, ipr_release_dump);
4125 return 0;
4126 }
4127
4128 if (off + count > dump->driver_dump.hdr.len) {
4129 count = dump->driver_dump.hdr.len - off;
4130 rc = count;
4131 }
4132
4133 if (count && off < sizeof(dump->driver_dump)) {
4134 if (off + count > sizeof(dump->driver_dump))
4135 len = sizeof(dump->driver_dump) - off;
4136 else
4137 len = count;
4138 src = (u8 *)&dump->driver_dump + off;
4139 memcpy(buf, src, len);
4140 buf += len;
4141 off += len;
4142 count -= len;
4143 }
4144
4145 off -= sizeof(dump->driver_dump);
4146
4d4dd706
KSS		 4147 if (ioa_cfg->sis64)
4148 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4149 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4150 sizeof(struct ipr_sdt_entry));
4151 else
4152 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
4153 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
4154
4155 if (count && off < sdt_end) {
4156 if (off + count > sdt_end)
4157 len = sdt_end - off;
1da177e4
LT		 4158 else
4159 len = count;
4160 src = (u8 *)&dump->ioa_dump + off;
4161 memcpy(buf, src, len);
4162 buf += len;
4163 off += len;
4164 count -= len;
4165 }
4166
4d4dd706 4167 off -= sdt_end;
1da177e4
LT		 4168
4169 while (count) {
4170 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
4171 len = PAGE_ALIGN(off) - off;
4172 else
4173 len = count;
4174 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4175 src += off & ~PAGE_MASK;
4176 memcpy(buf, src, len);
4177 buf += len;
4178 off += len;
4179 count -= len;
4180 }
4181
4182 kref_put(&dump->kref, ipr_release_dump);
4183 return rc;
4184}
4185
4186/**
4187 * ipr_alloc_dump - Prepare for adapter dump
4188 * @ioa_cfg: ioa config struct
4189 *
4190 * Return value:
4191 * 0 on success / other on failure
4192 **/
4193static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
4194{
4195 struct ipr_dump *dump;
4d4dd706 4196 __be32 **ioa_data;
1da177e4
LT		 4197 unsigned long lock_flags = 0;
4198
0bc42e35 4199 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
1da177e4
LT		 4200
4201 if (!dump) {
4202 ipr_err("Dump memory allocation failed\n");
4203 return -ENOMEM;
4204 }
4205
4d4dd706
KSS		 4206 if (ioa_cfg->sis64)
4207 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4208 else
4209 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
4210
4211 if (!ioa_data) {
4212 ipr_err("Dump memory allocation failed\n");
4213 kfree(dump);
4214 return -ENOMEM;
4215 }
4216
4217 dump->ioa_dump.ioa_data = ioa_data;
4218
1da177e4
LT		 4219 kref_init(&dump->kref);
4220 dump->ioa_cfg = ioa_cfg;
4221
4222 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4223
4224 if (INACTIVE != ioa_cfg->sdt_state) {
4225 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4d4dd706 4226 vfree(dump->ioa_dump.ioa_data);
1da177e4
LT		 4227 kfree(dump);
4228 return 0;
4229 }
4230
4231 ioa_cfg->dump = dump;
4232 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
56d6aa33 4233 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) {
1da177e4
LT		 4234 ioa_cfg->dump_taken = 1;
4235 schedule_work(&ioa_cfg->work_q);
4236 }
4237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4238
1da177e4
LT		 4239 return 0;
4240}
4241
4242/**
4243 * ipr_free_dump - Free adapter dump memory
4244 * @ioa_cfg: ioa config struct
4245 *
4246 * Return value:
4247 * 0 on success / other on failure
4248 **/
4249static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4250{
4251 struct ipr_dump *dump;
4252 unsigned long lock_flags = 0;
4253
4254 ENTER;
4255
4256 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4257 dump = ioa_cfg->dump;
4258 if (!dump) {
4259 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4260 return 0;
4261 }
4262
4263 ioa_cfg->dump = NULL;
4264 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4265
4266 kref_put(&dump->kref, ipr_release_dump);
4267
4268 LEAVE;
4269 return 0;
4270}
4271
4272/**
4273 * ipr_write_dump - Setup dump state of adapter
2c3c8bea 4274 * @filp: open sysfs file
1da177e4 4275 * @kobj: kobject struct
91a69029 4276 * @bin_attr: bin_attribute struct
1da177e4
LT		 4277 * @buf: buffer
4278 * @off: offset
4279 * @count: buffer size
4280 *
4281 * Return value:
4282 * number of bytes printed to buffer
4283 **/
2c3c8bea 4284static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
91a69029
ZR		 4285 struct bin_attribute *bin_attr,
4286 char *buf, loff_t off, size_t count)
1da177e4 4287{
ee959b00 4288 struct device *cdev = container_of(kobj, struct device, kobj);
1da177e4
LT		 4289 struct Scsi_Host *shost = class_to_shost(cdev);
4290 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4291 int rc;
4292
4293 if (!capable(CAP_SYS_ADMIN))
4294 return -EACCES;
4295
4296 if (buf[0] == '1')
4297 rc = ipr_alloc_dump(ioa_cfg);
4298 else if (buf[0] == '0')
4299 rc = ipr_free_dump(ioa_cfg);
4300 else
4301 return -EINVAL;
4302
4303 if (rc)
4304 return rc;
4305 else
4306 return count;
4307}
4308
4309static struct bin_attribute ipr_dump_attr = {
4310 .attr = {
4311 .name = "dump",
4312 .mode = S_IRUSR | S_IWUSR,
4313 },
4314 .size = 0,
4315 .read = ipr_read_dump,
4316 .write = ipr_write_dump
4317};
4318#else
4319static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4320#endif
4321
4322/**
4323 * ipr_change_queue_depth - Change the device's queue depth
4324 * @sdev: scsi device struct
4325 * @qdepth: depth to set
e881a172 4326 * @reason: calling context
1da177e4
LT		 4327 *
4328 * Return value:
4329 * actual depth set
4330 **/
e881a172
MC		 4331static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4332 int reason)
1da177e4 4333{
35a39691
BK		 4334 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4335 struct ipr_resource_entry *res;
4336 unsigned long lock_flags = 0;
4337
e881a172
MC		 4338 if (reason != SCSI_QDEPTH_DEFAULT)
4339 return -EOPNOTSUPP;
4340
35a39691
BK		 4341 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4342 res = (struct ipr_resource_entry *)sdev->hostdata;
4343
4344 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4345 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4346 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4347
c8b09f6f 4348 scsi_adjust_queue_depth(sdev, qdepth);
1da177e4
LT		 4349 return sdev->queue_depth;
4350}
4351
4352/**
4353 * ipr_change_queue_type - Change the device's queue type
4354 * @dsev: scsi device struct
4355 * @tag_type: type of tags to use
4356 *
4357 * Return value:
4358 * actual queue type set
4359 **/
4360static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4361{
4362 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4363 struct ipr_resource_entry *res;
4364 unsigned long lock_flags = 0;
4365
4366 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4367 res = (struct ipr_resource_entry *)sdev->hostdata;
a62182f3
CH		 4368 if (res && ipr_is_gscsi(res))
4369 tag_type = scsi_change_queue_type(sdev, tag_type);
4370 else
1da177e4 4371 tag_type = 0;
1da177e4
LT		 4372 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4373 return tag_type;
4374}
4375
4376/**
4377 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4378 * @dev: device struct
46d74563 4379 * @attr: device attribute structure
1da177e4
LT		 4380 * @buf: buffer
4381 *
4382 * Return value:
4383 * number of bytes printed to buffer
4384 **/
10523b3b 4385static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
1da177e4
LT		 4386{
4387 struct scsi_device *sdev = to_scsi_device(dev);
4388 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4389 struct ipr_resource_entry *res;
4390 unsigned long lock_flags = 0;
4391 ssize_t len = -ENXIO;
4392
4393 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4394 res = (struct ipr_resource_entry *)sdev->hostdata;
4395 if (res)
3e7ebdfa 4396 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
1da177e4
LT		 4397 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4398 return len;
4399}
4400
4401static struct device_attribute ipr_adapter_handle_attr = {
4402 .attr = {
4403 .name = "adapter_handle",
4404 .mode = S_IRUSR,
4405 },
4406 .show = ipr_show_adapter_handle
4407};
4408
3e7ebdfa 4409/**
5adcbeb3
WB		 4410 * ipr_show_resource_path - Show the resource path or the resource address for
4411 * this device.
3e7ebdfa 4412 * @dev: device struct
46d74563 4413 * @attr: device attribute structure
3e7ebdfa
WB		 4414 * @buf: buffer
4415 *
4416 * Return value:
4417 * number of bytes printed to buffer
4418 **/
4419static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4420{
4421 struct scsi_device *sdev = to_scsi_device(dev);
4422 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4423 struct ipr_resource_entry *res;
4424 unsigned long lock_flags = 0;
4425 ssize_t len = -ENXIO;
4426 char buffer[IPR_MAX_RES_PATH_LENGTH];
4427
4428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4429 res = (struct ipr_resource_entry *)sdev->hostdata;
5adcbeb3 4430 if (res && ioa_cfg->sis64)
3e7ebdfa 4431 len = snprintf(buf, PAGE_SIZE, "%s\n",
b3b3b407
BK		 4432 __ipr_format_res_path(res->res_path, buffer,
4433 sizeof(buffer)));
5adcbeb3
WB		 4434 else if (res)
4435 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4436 res->bus, res->target, res->lun);
4437
3e7ebdfa
WB		 4438 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4439 return len;
4440}
4441
4442static struct device_attribute ipr_resource_path_attr = {
4443 .attr = {
4444 .name = "resource_path",
75576bb9 4445 .mode = S_IRUGO,
3e7ebdfa
WB		 4446 },
4447 .show = ipr_show_resource_path
4448};
4449
46d74563
WB		 4450/**
4451 * ipr_show_device_id - Show the device_id for this device.
4452 * @dev: device struct
4453 * @attr: device attribute structure
4454 * @buf: buffer
4455 *
4456 * Return value:
4457 * number of bytes printed to buffer
4458 **/
4459static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4460{
4461 struct scsi_device *sdev = to_scsi_device(dev);
4462 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4463 struct ipr_resource_entry *res;
4464 unsigned long lock_flags = 0;
4465 ssize_t len = -ENXIO;
4466
4467 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4468 res = (struct ipr_resource_entry *)sdev->hostdata;
4469 if (res && ioa_cfg->sis64)
4470 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4471 else if (res)
4472 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4473
4474 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4475 return len;
4476}
4477
4478static struct device_attribute ipr_device_id_attr = {
4479 .attr = {
4480 .name = "device_id",
4481 .mode = S_IRUGO,
4482 },
4483 .show = ipr_show_device_id
4484};
4485
75576bb9
WB		 4486/**
4487 * ipr_show_resource_type - Show the resource type for this device.
4488 * @dev: device struct
46d74563 4489 * @attr: device attribute structure
75576bb9
WB		 4490 * @buf: buffer
4491 *
4492 * Return value:
4493 * number of bytes printed to buffer
4494 **/
4495static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4496{
4497 struct scsi_device *sdev = to_scsi_device(dev);
4498 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4499 struct ipr_resource_entry *res;
4500 unsigned long lock_flags = 0;
4501 ssize_t len = -ENXIO;
4502
4503 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4504 res = (struct ipr_resource_entry *)sdev->hostdata;
4505
4506 if (res)
4507 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4508
4509 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4510 return len;
4511}
4512
4513static struct device_attribute ipr_resource_type_attr = {
4514 .attr = {
4515 .name = "resource_type",
4516 .mode = S_IRUGO,
4517 },
4518 .show = ipr_show_resource_type
4519};
4520
1da177e4
LT		 4521static struct device_attribute *ipr_dev_attrs[] = {
4522 &ipr_adapter_handle_attr,
3e7ebdfa 4523 &ipr_resource_path_attr,
46d74563 4524 &ipr_device_id_attr,
75576bb9 4525 &ipr_resource_type_attr,
1da177e4
LT		 4526 NULL,
4527};
4528
4529/**
4530 * ipr_biosparam - Return the HSC mapping
4531 * @sdev: scsi device struct
4532 * @block_device: block device pointer
4533 * @capacity: capacity of the device
4534 * @parm: Array containing returned HSC values.
4535 *
4536 * This function generates the HSC parms that fdisk uses.
4537 * We want to make sure we return something that places partitions
4538 * on 4k boundaries for best performance with the IOA.
4539 *
4540 * Return value:
4541 * 0 on success
4542 **/
4543static int ipr_biosparam(struct scsi_device *sdev,
4544 struct block_device *block_device,
4545 sector_t capacity, int *parm)
4546{
4547 int heads, sectors;
4548 sector_t cylinders;
4549
4550 heads = 128;
4551 sectors = 32;
4552
4553 cylinders = capacity;
4554 sector_div(cylinders, (128 * 32));
4555
4556 /* return result */
4557 parm[0] = heads;
4558 parm[1] = sectors;
4559 parm[2] = cylinders;
4560
4561 return 0;
4562}
4563
35a39691
BK		 4564/**
4565 * ipr_find_starget - Find target based on bus/target.
4566 * @starget: scsi target struct
4567 *
4568 * Return value:
4569 * resource entry pointer if found / NULL if not found
4570 **/
4571static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4572{
4573 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4574 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4575 struct ipr_resource_entry *res;
4576
4577 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa 4578 if ((res->bus == starget->channel) &&
0ee1d714 4579 (res->target == starget->id)) {
35a39691
BK		 4580 return res;
4581 }
4582 }
4583
4584 return NULL;
4585}
4586
4587static struct ata_port_info sata_port_info;
4588
4589/**
4590 * ipr_target_alloc - Prepare for commands to a SCSI target
4591 * @starget: scsi target struct
4592 *
4593 * If the device is a SATA device, this function allocates an
4594 * ATA port with libata, else it does nothing.
4595 *
4596 * Return value:
4597 * 0 on success / non-0 on failure
4598 **/
4599static int ipr_target_alloc(struct scsi_target *starget)
4600{
4601 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4602 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4603 struct ipr_sata_port *sata_port;
4604 struct ata_port *ap;
4605 struct ipr_resource_entry *res;
4606 unsigned long lock_flags;
4607
4608 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4609 res = ipr_find_starget(starget);
4610 starget->hostdata = NULL;
4611
4612 if (res && ipr_is_gata(res)) {
4613 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4614 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4615 if (!sata_port)
4616 return -ENOMEM;
4617
4618 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4619 if (ap) {
4620 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4621 sata_port->ioa_cfg = ioa_cfg;
4622 sata_port->ap = ap;
4623 sata_port->res = res;
4624
4625 res->sata_port = sata_port;
4626 ap->private_data = sata_port;
4627 starget->hostdata = sata_port;
4628 } else {
4629 kfree(sata_port);
4630 return -ENOMEM;
4631 }
4632 }
4633 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4634
4635 return 0;
4636}
4637
4638/**
4639 * ipr_target_destroy - Destroy a SCSI target
4640 * @starget: scsi target struct
4641 *
4642 * If the device was a SATA device, this function frees the libata
4643 * ATA port, else it does nothing.
4644 *
4645 **/
4646static void ipr_target_destroy(struct scsi_target *starget)
4647{
4648 struct ipr_sata_port *sata_port = starget->hostdata;
3e7ebdfa
WB		 4649 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4650 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4651
4652 if (ioa_cfg->sis64) {
0ee1d714
BK		 4653 if (!ipr_find_starget(starget)) {
4654 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4655 clear_bit(starget->id, ioa_cfg->array_ids);
4656 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4657 clear_bit(starget->id, ioa_cfg->vset_ids);
4658 else if (starget->channel == 0)
4659 clear_bit(starget->id, ioa_cfg->target_ids);
4660 }
3e7ebdfa 4661 }
35a39691
BK		 4662
4663 if (sata_port) {
4664 starget->hostdata = NULL;
4665 ata_sas_port_destroy(sata_port->ap);
4666 kfree(sata_port);
4667 }
4668}
4669
4670/**
4671 * ipr_find_sdev - Find device based on bus/target/lun.
4672 * @sdev: scsi device struct
4673 *
4674 * Return value:
4675 * resource entry pointer if found / NULL if not found
4676 **/
4677static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4678{
4679 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4680 struct ipr_resource_entry *res;
4681
4682 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3e7ebdfa
WB		 4683 if ((res->bus == sdev->channel) &&
4684 (res->target == sdev->id) &&
4685 (res->lun == sdev->lun))
35a39691
BK		 4686 return res;
4687 }
4688
4689 return NULL;
4690}
4691
1da177e4
LT		 4692/**
4693 * ipr_slave_destroy - Unconfigure a SCSI device
4694 * @sdev: scsi device struct
4695 *
4696 * Return value:
4697 * nothing
4698 **/
4699static void ipr_slave_destroy(struct scsi_device *sdev)
4700{
4701 struct ipr_resource_entry *res;
4702 struct ipr_ioa_cfg *ioa_cfg;
4703 unsigned long lock_flags = 0;
4704
4705 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4706
4707 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4708 res = (struct ipr_resource_entry *) sdev->hostdata;
4709 if (res) {
35a39691 4710 if (res->sata_port)
3e4ec344 4711 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
1da177e4
LT		 4712 sdev->hostdata = NULL;
4713 res->sdev = NULL;
35a39691 4714 res->sata_port = NULL;
1da177e4
LT		 4715 }
4716 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4717}
4718
4719/**
4720 * ipr_slave_configure - Configure a SCSI device
4721 * @sdev: scsi device struct
4722 *
4723 * This function configures the specified scsi device.
4724 *
4725 * Return value:
4726 * 0 on success
4727 **/
4728static int ipr_slave_configure(struct scsi_device *sdev)
4729{
4730 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4731 struct ipr_resource_entry *res;
dd406ef8 4732 struct ata_port *ap = NULL;
1da177e4 4733 unsigned long lock_flags = 0;
3e7ebdfa 4734 char buffer[IPR_MAX_RES_PATH_LENGTH];
1da177e4
LT		 4735
4736 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4737 res = sdev->hostdata;
4738 if (res) {
4739 if (ipr_is_af_dasd_device(res))
4740 sdev->type = TYPE_RAID;
0726ce26 4741 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
1da177e4 4742 sdev->scsi_level = 4;
0726ce26
BK		 4743 sdev->no_uld_attach = 1;
4744 }
1da177e4 4745 if (ipr_is_vset_device(res)) {
242f9dcb
JA		 4746 blk_queue_rq_timeout(sdev->request_queue,
4747 IPR_VSET_RW_TIMEOUT);
086fa5ff 4748 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
1da177e4 4749 }
dd406ef8
BK		 4750 if (ipr_is_gata(res) && res->sata_port)
4751 ap = res->sata_port->ap;
4752 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4753
4754 if (ap) {
c8b09f6f 4755 scsi_adjust_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN);
dd406ef8 4756 ata_sas_slave_configure(sdev, ap);
c8b09f6f
CH		 4757 }
4758
3e7ebdfa
WB		 4759 if (ioa_cfg->sis64)
4760 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
b3b3b407
BK		 4761 ipr_format_res_path(ioa_cfg,
4762 res->res_path, buffer, sizeof(buffer)));
dd406ef8 4763 return 0;
1da177e4
LT		 4764 }
4765 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4766 return 0;
4767}
4768
35a39691
BK		 4769/**
4770 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4771 * @sdev: scsi device struct
4772 *
4773 * This function initializes an ATA port so that future commands
4774 * sent through queuecommand will work.
4775 *
4776 * Return value:
4777 * 0 on success
4778 **/
4779static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4780{
4781 struct ipr_sata_port *sata_port = NULL;
4782 int rc = -ENXIO;
4783
4784 ENTER;
4785 if (sdev->sdev_target)
4786 sata_port = sdev->sdev_target->hostdata;
b2024459 4787 if (sata_port) {
35a39691 4788 rc = ata_sas_port_init(sata_port->ap);
b2024459
DW		 4789 if (rc == 0)
4790 rc = ata_sas_sync_probe(sata_port->ap);
4791 }
4792
35a39691
BK		 4793 if (rc)
4794 ipr_slave_destroy(sdev);
4795
4796 LEAVE;
4797 return rc;
4798}
4799
1da177e4
LT		 4800/**
4801 * ipr_slave_alloc - Prepare for commands to a device.
4802 * @sdev: scsi device struct
4803 *
4804 * This function saves a pointer to the resource entry
4805 * in the scsi device struct if the device exists. We
4806 * can then use this pointer in ipr_queuecommand when
4807 * handling new commands.
4808 *
4809 * Return value:
692aebfc 4810 * 0 on success / -ENXIO if device does not exist
1da177e4
LT		 4811 **/
4812static int ipr_slave_alloc(struct scsi_device *sdev)
4813{
4814 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4815 struct ipr_resource_entry *res;
4816 unsigned long lock_flags;
692aebfc 4817 int rc = -ENXIO;
1da177e4
LT		 4818
4819 sdev->hostdata = NULL;
4820
4821 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4822
35a39691
BK		 4823 res = ipr_find_sdev(sdev);
4824 if (res) {
4825 res->sdev = sdev;
4826 res->add_to_ml = 0;
4827 res->in_erp = 0;
4828 sdev->hostdata = res;
4829 if (!ipr_is_naca_model(res))
4830 res->needs_sync_complete = 1;
4831 rc = 0;
4832 if (ipr_is_gata(res)) {
4833 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4834 return ipr_ata_slave_alloc(sdev);
1da177e4
LT		 4835 }
4836 }
4837
4838 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4839
692aebfc 4840 return rc;
1da177e4
LT		 4841}
4842
70233ac5 4843static int ipr_eh_host_reset(struct scsi_cmnd *cmd)
1da177e4
LT		 4844{
4845 struct ipr_ioa_cfg *ioa_cfg;
70233ac5 4846 unsigned long lock_flags = 0;
4847 int rc = SUCCESS;
1da177e4
LT		 4848
4849 ENTER;
70233ac5 4850 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata;
4851 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 4852
96b04db9 4853 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
70233ac5 4854 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
a92fa25c
KSS		 4855 dev_err(&ioa_cfg->pdev->dev,
4856 "Adapter being reset as a result of error recovery.\n");
1da177e4 4857
a92fa25c
KSS		 4858 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4859 ioa_cfg->sdt_state = GET_DUMP;
4860 }
1da177e4 4861
70233ac5 4862 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4863 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4864 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
df0ae249 4865
70233ac5 4866 /* If we got hit with a host reset while we were already resetting
4867 the adapter for some reason, and the reset failed. */
4868 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
4869 ipr_trace;
4870 rc = FAILED;
4871 }
df0ae249 4872
70233ac5 4873 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4874 LEAVE;
df0ae249
JG		 4875 return rc;
4876}
4877
c6513096
BK		 4878/**
4879 * ipr_device_reset - Reset the device
4880 * @ioa_cfg: ioa config struct
4881 * @res: resource entry struct
4882 *
4883 * This function issues a device reset to the affected device.
4884 * If the device is a SCSI device, a LUN reset will be sent
4885 * to the device first. If that does not work, a target reset
35a39691
BK		 4886 * will be sent. If the device is a SATA device, a PHY reset will
4887 * be sent.
c6513096
BK		 4888 *
4889 * Return value:
4890 * 0 on success / non-zero on failure
4891 **/
4892static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4893 struct ipr_resource_entry *res)
4894{
4895 struct ipr_cmnd *ipr_cmd;
4896 struct ipr_ioarcb *ioarcb;
4897 struct ipr_cmd_pkt *cmd_pkt;
35a39691 4898 struct ipr_ioarcb_ata_regs *regs;
c6513096
BK		 4899 u32 ioasc;
4900
4901 ENTER;
4902 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4903 ioarcb = &ipr_cmd->ioarcb;
4904 cmd_pkt = &ioarcb->cmd_pkt;
a32c055f
WB		 4905
4906 if (ipr_cmd->ioa_cfg->sis64) {
4907 regs = &ipr_cmd->i.ata_ioadl.regs;
4908 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4909 } else
4910 regs = &ioarcb->u.add_data.u.regs;
c6513096 4911
3e7ebdfa 4912 ioarcb->res_handle = res->res_handle;
c6513096
BK		 4913 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4914 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
35a39691
BK		 4915 if (ipr_is_gata(res)) {
4916 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
a32c055f 4917 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
35a39691
BK		 4918 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4919 }
c6513096
BK		 4920
4921 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
96d21f00 4922 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 4923 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
96d21f00
WB		 4924 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4925 if (ipr_cmd->ioa_cfg->sis64)
4926 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4927 sizeof(struct ipr_ioasa_gata));
4928 else
4929 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4930 sizeof(struct ipr_ioasa_gata));
4931 }
c6513096
BK		 4932
4933 LEAVE;
203fa3fe 4934 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0;
c6513096
BK		 4935}
4936
35a39691
BK		 4937/**
4938 * ipr_sata_reset - Reset the SATA port
cc0680a5 4939 * @link: SATA link to reset
35a39691
BK		 4940 * @classes: class of the attached device
4941 *
cc0680a5 4942 * This function issues a SATA phy reset to the affected ATA link.
35a39691
BK		 4943 *
4944 * Return value:
4945 * 0 on success / non-zero on failure
4946 **/
cc0680a5 4947static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
120bda35 4948 unsigned long deadline)
35a39691 4949{
cc0680a5 4950 struct ipr_sata_port *sata_port = link->ap->private_data;
35a39691
BK		 4951 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4952 struct ipr_resource_entry *res;
4953 unsigned long lock_flags = 0;
4954 int rc = -ENXIO;
4955
4956 ENTER;
4957 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
203fa3fe 4958 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 4959 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4960 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4961 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4962 }
4963
35a39691
BK		 4964 res = sata_port->res;
4965 if (res) {
4966 rc = ipr_device_reset(ioa_cfg, res);
3e7ebdfa 4967 *classes = res->ata_class;
35a39691
BK		 4968 }
4969
4970 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4971 LEAVE;
4972 return rc;
4973}
4974
1da177e4
LT		 4975/**
4976 * ipr_eh_dev_reset - Reset the device
4977 * @scsi_cmd: scsi command struct
4978 *
4979 * This function issues a device reset to the affected device.
4980 * A LUN reset will be sent to the device first. If that does
4981 * not work, a target reset will be sent.
4982 *
4983 * Return value:
4984 * SUCCESS / FAILED
4985 **/
203fa3fe 4986static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 4987{
4988 struct ipr_cmnd *ipr_cmd;
4989 struct ipr_ioa_cfg *ioa_cfg;
4990 struct ipr_resource_entry *res;
35a39691
BK		 4991 struct ata_port *ap;
4992 int rc = 0;
05a6538a 4993 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 4994
4995 ENTER;
4996 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4997 res = scsi_cmd->device->hostdata;
4998
eeb88307 4999 if (!res)
1da177e4
LT		 5000 return FAILED;
5001
5002 /*
5003 * If we are currently going through reset/reload, return failed. This will force the
5004 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
5005 * reset to complete
5006 */
5007 if (ioa_cfg->in_reset_reload)
5008 return FAILED;
56d6aa33 5009 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 5010 return FAILED;
5011
05a6538a 5012 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5013 spin_lock(&hrrq->_lock);
05a6538a 5014 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5015 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
5016 if (ipr_cmd->scsi_cmd)
5017 ipr_cmd->done = ipr_scsi_eh_done;
5018 if (ipr_cmd->qc)
5019 ipr_cmd->done = ipr_sata_eh_done;
5020 if (ipr_cmd->qc &&
5021 !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
5022 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
5023 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
5024 }
7402ecef 5025 }
1da177e4 5026 }
56d6aa33 5027 spin_unlock(&hrrq->_lock);
1da177e4 5028 }
1da177e4 5029 res->resetting_device = 1;
fb3ed3cb 5030 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
35a39691
BK		 5031
5032 if (ipr_is_gata(res) && res->sata_port) {
5033 ap = res->sata_port->ap;
5034 spin_unlock_irq(scsi_cmd->device->host->host_lock);
a1efdaba 5035 ata_std_error_handler(ap);
35a39691 5036 spin_lock_irq(scsi_cmd->device->host->host_lock);
5af23d26 5037
05a6538a 5038 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5039 spin_lock(&hrrq->_lock);
05a6538a 5040 list_for_each_entry(ipr_cmd,
5041 &hrrq->hrrq_pending_q, queue) {
5042 if (ipr_cmd->ioarcb.res_handle ==
5043 res->res_handle) {
5044 rc = -EIO;
5045 break;
5046 }
5af23d26 5047 }
56d6aa33 5048 spin_unlock(&hrrq->_lock);
5af23d26 5049 }
35a39691
BK		 5050 } else
5051 rc = ipr_device_reset(ioa_cfg, res);
1da177e4 5052 res->resetting_device = 0;
0b1f8d44 5053 res->reset_occurred = 1;
1da177e4 5054
1da177e4 5055 LEAVE;
203fa3fe 5056 return rc ? FAILED : SUCCESS;
1da177e4
LT		 5057}
5058
203fa3fe 5059static int ipr_eh_dev_reset(struct scsi_cmnd *cmd)
94d0e7b8
JG		 5060{
5061 int rc;
5062
5063 spin_lock_irq(cmd->device->host->host_lock);
5064 rc = __ipr_eh_dev_reset(cmd);
5065 spin_unlock_irq(cmd->device->host->host_lock);
5066
5067 return rc;
5068}
5069
1da177e4
LT		 5070/**
5071 * ipr_bus_reset_done - Op done function for bus reset.
5072 * @ipr_cmd: ipr command struct
5073 *
5074 * This function is the op done function for a bus reset
5075 *
5076 * Return value:
5077 * none
5078 **/
5079static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
5080{
5081 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5082 struct ipr_resource_entry *res;
5083
5084 ENTER;
3e7ebdfa
WB		 5085 if (!ioa_cfg->sis64)
5086 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5087 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
5088 scsi_report_bus_reset(ioa_cfg->host, res->bus);
5089 break;
5090 }
1da177e4 5091 }
1da177e4
LT		 5092
5093 /*
5094 * If abort has not completed, indicate the reset has, else call the
5095 * abort's done function to wake the sleeping eh thread
5096 */
5097 if (ipr_cmd->sibling->sibling)
5098 ipr_cmd->sibling->sibling = NULL;
5099 else
5100 ipr_cmd->sibling->done(ipr_cmd->sibling);
5101
05a6538a 5102 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5103 LEAVE;
5104}
5105
5106/**
5107 * ipr_abort_timeout - An abort task has timed out
5108 * @ipr_cmd: ipr command struct
5109 *
5110 * This function handles when an abort task times out. If this
5111 * happens we issue a bus reset since we have resources tied
5112 * up that must be freed before returning to the midlayer.
5113 *
5114 * Return value:
5115 * none
5116 **/
5117static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
5118{
5119 struct ipr_cmnd *reset_cmd;
5120 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5121 struct ipr_cmd_pkt *cmd_pkt;
5122 unsigned long lock_flags = 0;
5123
5124 ENTER;
5125 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5126 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
5127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5128 return;
5129 }
5130
fb3ed3cb 5131 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
1da177e4
LT		 5132 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5133 ipr_cmd->sibling = reset_cmd;
5134 reset_cmd->sibling = ipr_cmd;
5135 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
5136 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
5137 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5138 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
5139 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
5140
5141 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
5142 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5143 LEAVE;
5144}
5145
5146/**
5147 * ipr_cancel_op - Cancel specified op
5148 * @scsi_cmd: scsi command struct
5149 *
5150 * This function cancels specified op.
5151 *
5152 * Return value:
5153 * SUCCESS / FAILED
5154 **/
203fa3fe 5155static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 5156{
5157 struct ipr_cmnd *ipr_cmd;
5158 struct ipr_ioa_cfg *ioa_cfg;
5159 struct ipr_resource_entry *res;
5160 struct ipr_cmd_pkt *cmd_pkt;
a92fa25c 5161 u32 ioasc, int_reg;
1da177e4 5162 int op_found = 0;
05a6538a 5163 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 5164
5165 ENTER;
5166 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5167 res = scsi_cmd->device->hostdata;
5168
8fa728a2
JG		 5169 /* If we are currently going through reset/reload, return failed.
5170 * This will force the mid-layer to call ipr_eh_host_reset,
5171 * which will then go to sleep and wait for the reset to complete
5172 */
56d6aa33 5173 if (ioa_cfg->in_reset_reload ||
5174 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
8fa728a2 5175 return FAILED;
a92fa25c
KSS		 5176 if (!res)
5177 return FAILED;
5178
5179 /*
5180 * If we are aborting a timed out op, chances are that the timeout was caused
5181 * by a still not detected EEH error. In such cases, reading a register will
5182 * trigger the EEH recovery infrastructure.
5183 */
5184 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5185
5186 if (!ipr_is_gscsi(res))
1da177e4
LT		 5187 return FAILED;
5188
05a6538a 5189 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 5190 spin_lock(&hrrq->_lock);
05a6538a 5191 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
5192 if (ipr_cmd->scsi_cmd == scsi_cmd) {
5193 ipr_cmd->done = ipr_scsi_eh_done;
5194 op_found = 1;
5195 break;
5196 }
1da177e4 5197 }
56d6aa33 5198 spin_unlock(&hrrq->_lock);
1da177e4
LT		 5199 }
5200
5201 if (!op_found)
5202 return SUCCESS;
5203
5204 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3e7ebdfa 5205 ipr_cmd->ioarcb.res_handle = res->res_handle;
1da177e4
LT		 5206 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5207 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5208 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5209 ipr_cmd->u.sdev = scsi_cmd->device;
5210
fb3ed3cb
BK		 5211 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
5212 scsi_cmd->cmnd[0]);
1da177e4 5213 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
96d21f00 5214 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5215
5216 /*
5217 * If the abort task timed out and we sent a bus reset, we will get
5218 * one the following responses to the abort
5219 */
5220 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
5221 ioasc = 0;
5222 ipr_trace;
5223 }
5224
c4ee22a3 5225 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
ee0a90fa
BK		 5226 if (!ipr_is_naca_model(res))
5227 res->needs_sync_complete = 1;
1da177e4
LT		 5228
5229 LEAVE;
203fa3fe 5230 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS;
1da177e4
LT		 5231}
5232
5233/**
5234 * ipr_eh_abort - Abort a single op
5235 * @scsi_cmd: scsi command struct
5236 *
5237 * Return value:
5238 * SUCCESS / FAILED
5239 **/
203fa3fe 5240static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
1da177e4 5241{
8fa728a2
JG		 5242 unsigned long flags;
5243 int rc;
1da177e4
LT		 5244
5245 ENTER;
1da177e4 5246
8fa728a2
JG		 5247 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
5248 rc = ipr_cancel_op(scsi_cmd);
5249 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
1da177e4
LT		 5250
5251 LEAVE;
8fa728a2 5252 return rc;
1da177e4
LT		 5253}
5254
5255/**
5256 * ipr_handle_other_interrupt - Handle "other" interrupts
5257 * @ioa_cfg: ioa config struct
634651fa 5258 * @int_reg: interrupt register
1da177e4
LT		 5259 *
5260 * Return value:
5261 * IRQ_NONE / IRQ_HANDLED
5262 **/
634651fa 5263static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
630ad831 5264 u32 int_reg)
1da177e4
LT		 5265{
5266 irqreturn_t rc = IRQ_HANDLED;
7dacb64f 5267 u32 int_mask_reg;
56d6aa33 5268
7dacb64f
WB		 5269 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5270 int_reg &= ~int_mask_reg;
5271
5272 /* If an interrupt on the adapter did not occur, ignore it.
5273 * Or in the case of SIS 64, check for a stage change interrupt.
5274 */
5275 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5276 if (ioa_cfg->sis64) {
5277 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5278 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5279 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5280
5281 /* clear stage change */
5282 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5283 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5284 list_del(&ioa_cfg->reset_cmd->queue);
5285 del_timer(&ioa_cfg->reset_cmd->timer);
5286 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5287 return IRQ_HANDLED;
5288 }
5289 }
5290
5291 return IRQ_NONE;
5292 }
1da177e4
LT		 5293
5294 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5295 /* Mask the interrupt */
5296 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5297
5298 /* Clear the interrupt */
5299 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5300 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5301
5302 list_del(&ioa_cfg->reset_cmd->queue);
5303 del_timer(&ioa_cfg->reset_cmd->timer);
5304 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
7dacb64f 5305 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
7dd21308
BK		 5306 if (ioa_cfg->clear_isr) {
5307 if (ipr_debug && printk_ratelimit())
5308 dev_err(&ioa_cfg->pdev->dev,
5309 "Spurious interrupt detected. 0x%08X\n", int_reg);
5310 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5311 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5312 return IRQ_NONE;
5313 }
1da177e4
LT		 5314 } else {
5315 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5316 ioa_cfg->ioa_unit_checked = 1;
05a6538a 5317 else if (int_reg & IPR_PCII_NO_HOST_RRQ)
5318 dev_err(&ioa_cfg->pdev->dev,
5319 "No Host RRQ. 0x%08X\n", int_reg);
1da177e4
LT		 5320 else
5321 dev_err(&ioa_cfg->pdev->dev,
5322 "Permanent IOA failure. 0x%08X\n", int_reg);
5323
5324 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5325 ioa_cfg->sdt_state = GET_DUMP;
5326
5327 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5328 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5329 }
56d6aa33 5330
1da177e4
LT		 5331 return rc;
5332}
5333
3feeb89d
WB		 5334/**
5335 * ipr_isr_eh - Interrupt service routine error handler
5336 * @ioa_cfg: ioa config struct
5337 * @msg: message to log
5338 *
5339 * Return value:
5340 * none
5341 **/
05a6538a 5342static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number)
3feeb89d
WB		 5343{
5344 ioa_cfg->errors_logged++;
05a6538a 5345 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number);
3feeb89d
WB		 5346
5347 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5348 ioa_cfg->sdt_state = GET_DUMP;
5349
5350 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5351}
5352
b53d124a 5353static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget,
05a6538a 5354 struct list_head *doneq)
5355{
5356 u32 ioasc;
5357 u16 cmd_index;
5358 struct ipr_cmnd *ipr_cmd;
5359 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg;
5360 int num_hrrq = 0;
5361
5362 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5363 if (!hrr_queue->allow_interrupts)
05a6538a 5364 return 0;
5365
5366 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5367 hrr_queue->toggle_bit) {
5368
5369 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) &
5370 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >>
5371 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5372
5373 if (unlikely(cmd_index > hrr_queue->max_cmd_id ||
5374 cmd_index < hrr_queue->min_cmd_id)) {
5375 ipr_isr_eh(ioa_cfg,
5376 "Invalid response handle from IOA: ",
5377 cmd_index);
5378 break;
5379 }
5380
5381 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5382 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5383
5384 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5385
5386 list_move_tail(&ipr_cmd->queue, doneq);
5387
5388 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) {
5389 hrr_queue->hrrq_curr++;
5390 } else {
5391 hrr_queue->hrrq_curr = hrr_queue->hrrq_start;
5392 hrr_queue->toggle_bit ^= 1u;
5393 }
5394 num_hrrq++;
b53d124a 5395 if (budget > 0 && num_hrrq >= budget)
5396 break;
05a6538a 5397 }
b53d124a 5398
05a6538a 5399 return num_hrrq;
5400}
b53d124a 5401
5402static int ipr_iopoll(struct blk_iopoll *iop, int budget)
5403{
5404 struct ipr_ioa_cfg *ioa_cfg;
5405 struct ipr_hrr_queue *hrrq;
5406 struct ipr_cmnd *ipr_cmd, *temp;
5407 unsigned long hrrq_flags;
5408 int completed_ops;
5409 LIST_HEAD(doneq);
5410
5411 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll);
5412 ioa_cfg = hrrq->ioa_cfg;
5413
5414 spin_lock_irqsave(hrrq->lock, hrrq_flags);
5415 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq);
5416
5417 if (completed_ops < budget)
5418 blk_iopoll_complete(iop);
5419 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5420
5421 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5422 list_del(&ipr_cmd->queue);
5423 del_timer(&ipr_cmd->timer);
5424 ipr_cmd->fast_done(ipr_cmd);
5425 }
5426
5427 return completed_ops;
5428}
5429
1da177e4
LT		 5430/**
5431 * ipr_isr - Interrupt service routine
5432 * @irq: irq number
5433 * @devp: pointer to ioa config struct
1da177e4
LT		 5434 *
5435 * Return value:
5436 * IRQ_NONE / IRQ_HANDLED
5437 **/
7d12e780 5438static irqreturn_t ipr_isr(int irq, void *devp)
1da177e4 5439{
05a6538a 5440 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
5441 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5442 unsigned long hrrq_flags = 0;
7dacb64f 5443 u32 int_reg = 0;
3feeb89d 5444 int num_hrrq = 0;
7dacb64f 5445 int irq_none = 0;
172cd6e1 5446 struct ipr_cmnd *ipr_cmd, *temp;
1da177e4 5447 irqreturn_t rc = IRQ_NONE;
172cd6e1 5448 LIST_HEAD(doneq);
1da177e4 5449
56d6aa33 5450 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4 5451 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5452 if (!hrrq->allow_interrupts) {
5453 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4
LT		 5454 return IRQ_NONE;
5455 }
5456
1da177e4 5457 while (1) {
b53d124a 5458 if (ipr_process_hrrq(hrrq, -1, &doneq)) {
5459 rc = IRQ_HANDLED;
1da177e4 5460
b53d124a 5461 if (!ioa_cfg->clear_isr)
5462 break;
7dd21308 5463
1da177e4 5464 /* Clear the PCI interrupt */
a5442ba4 5465 num_hrrq = 0;
3feeb89d 5466 do {
b53d124a 5467 writel(IPR_PCII_HRRQ_UPDATED,
5468 ioa_cfg->regs.clr_interrupt_reg32);
7dacb64f 5469 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
3feeb89d 5470 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
b53d124a 5471 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
3feeb89d 5472
7dacb64f
WB		 5473 } else if (rc == IRQ_NONE && irq_none == 0) {
5474 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5475 irq_none++;
a5442ba4
WB		 5476 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5477 int_reg & IPR_PCII_HRRQ_UPDATED) {
b53d124a 5478 ipr_isr_eh(ioa_cfg,
5479 "Error clearing HRRQ: ", num_hrrq);
172cd6e1 5480 rc = IRQ_HANDLED;
b53d124a 5481 break;
1da177e4
LT		 5482 } else
5483 break;
5484 }
5485
5486 if (unlikely(rc == IRQ_NONE))
634651fa 5487 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
1da177e4 5488
56d6aa33 5489 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
172cd6e1
BK		 5490 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5491 list_del(&ipr_cmd->queue);
5492 del_timer(&ipr_cmd->timer);
5493 ipr_cmd->fast_done(ipr_cmd);
5494 }
05a6538a 5495 return rc;
5496}
5497
5498/**
5499 * ipr_isr_mhrrq - Interrupt service routine
5500 * @irq: irq number
5501 * @devp: pointer to ioa config struct
5502 *
5503 * Return value:
5504 * IRQ_NONE / IRQ_HANDLED
5505 **/
5506static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
5507{
5508 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp;
b53d124a 5509 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg;
56d6aa33 5510 unsigned long hrrq_flags = 0;
05a6538a 5511 struct ipr_cmnd *ipr_cmd, *temp;
5512 irqreturn_t rc = IRQ_NONE;
5513 LIST_HEAD(doneq);
172cd6e1 5514
56d6aa33 5515 spin_lock_irqsave(hrrq->lock, hrrq_flags);
05a6538a 5516
5517 /* If interrupts are disabled, ignore the interrupt */
56d6aa33 5518 if (!hrrq->allow_interrupts) {
5519 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5520 return IRQ_NONE;
5521 }
5522
89f8b33c 5523 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 5524 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5525 hrrq->toggle_bit) {
5526 if (!blk_iopoll_sched_prep(&hrrq->iopoll))
5527 blk_iopoll_sched(&hrrq->iopoll);
5528 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
5529 return IRQ_HANDLED;
5530 }
5531 } else {
5532 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5533 hrrq->toggle_bit)
05a6538a 5534
b53d124a 5535 if (ipr_process_hrrq(hrrq, -1, &doneq))
5536 rc = IRQ_HANDLED;
5537 }
05a6538a 5538
56d6aa33 5539 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 5540
5541 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) {
5542 list_del(&ipr_cmd->queue);
5543 del_timer(&ipr_cmd->timer);
5544 ipr_cmd->fast_done(ipr_cmd);
5545 }
1da177e4
LT		 5546 return rc;
5547}
5548
a32c055f
WB		 5549/**
5550 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5551 * @ioa_cfg: ioa config struct
5552 * @ipr_cmd: ipr command struct
5553 *
5554 * Return value:
5555 * 0 on success / -1 on failure
5556 **/
5557static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5558 struct ipr_cmnd *ipr_cmd)
5559{
5560 int i, nseg;
5561 struct scatterlist *sg;
5562 u32 length;
5563 u32 ioadl_flags = 0;
5564 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5565 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5566 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5567
5568 length = scsi_bufflen(scsi_cmd);
5569 if (!length)
5570 return 0;
5571
5572 nseg = scsi_dma_map(scsi_cmd);
5573 if (nseg < 0) {
51f52a47 5574 if (printk_ratelimit())
d73341bf 5575 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
a32c055f
WB		 5576 return -1;
5577 }
5578
5579 ipr_cmd->dma_use_sg = nseg;
5580
438b0331 5581 ioarcb->data_transfer_length = cpu_to_be32(length);
b8803b1c
WB		 5582 ioarcb->ioadl_len =
5583 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
438b0331 5584
a32c055f
WB		 5585 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5586 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5587 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5588 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5589 ioadl_flags = IPR_IOADL_FLAGS_READ;
5590
5591 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5592 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5593 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5594 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5595 }
5596
5597 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5598 return 0;
5599}
5600
1da177e4
LT		 5601/**
5602 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5603 * @ioa_cfg: ioa config struct
5604 * @ipr_cmd: ipr command struct
5605 *
5606 * Return value:
5607 * 0 on success / -1 on failure
5608 **/
5609static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5610 struct ipr_cmnd *ipr_cmd)
5611{
63015bc9
FT		 5612 int i, nseg;
5613 struct scatterlist *sg;
1da177e4
LT		 5614 u32 length;
5615 u32 ioadl_flags = 0;
5616 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5617 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 5618 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
1da177e4 5619
63015bc9
FT		 5620 length = scsi_bufflen(scsi_cmd);
5621 if (!length)
1da177e4
LT		 5622 return 0;
5623
63015bc9
FT		 5624 nseg = scsi_dma_map(scsi_cmd);
5625 if (nseg < 0) {
d73341bf 5626 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n");
63015bc9
FT		 5627 return -1;
5628 }
51b1c7e1 5629
63015bc9
FT		 5630 ipr_cmd->dma_use_sg = nseg;
5631
5632 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5633 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5634 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 5635 ioarcb->data_transfer_length = cpu_to_be32(length);
5636 ioarcb->ioadl_len =
63015bc9
FT		 5637 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5638 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5639 ioadl_flags = IPR_IOADL_FLAGS_READ;
5640 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5641 ioarcb->read_ioadl_len =
5642 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5643 }
1da177e4 5644
a32c055f
WB		 5645 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5646 ioadl = ioarcb->u.add_data.u.ioadl;
5647 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5648 offsetof(struct ipr_ioarcb, u.add_data));
63015bc9
FT		 5649 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5650 }
1da177e4 5651
63015bc9
FT		 5652 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5653 ioadl[i].flags_and_data_len =
5654 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5655 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
1da177e4
LT		 5656 }
5657
63015bc9
FT		 5658 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5659 return 0;
1da177e4
LT		 5660}
5661
1da177e4
LT		 5662/**
5663 * ipr_erp_done - Process completion of ERP for a device
5664 * @ipr_cmd: ipr command struct
5665 *
5666 * This function copies the sense buffer into the scsi_cmd
5667 * struct and pushes the scsi_done function.
5668 *
5669 * Return value:
5670 * nothing
5671 **/
5672static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5673{
5674 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5675 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 5676 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5677
5678 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5679 scsi_cmd->result |= (DID_ERROR << 16);
fb3ed3cb
BK		 5680 scmd_printk(KERN_ERR, scsi_cmd,
5681 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
1da177e4
LT		 5682 } else {
5683 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5684 SCSI_SENSE_BUFFERSIZE);
5685 }
5686
5687 if (res) {
ee0a90fa
BK		 5688 if (!ipr_is_naca_model(res))
5689 res->needs_sync_complete = 1;
1da177e4
LT		 5690 res->in_erp = 0;
5691 }
63015bc9 5692 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 5693 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 5694 scsi_cmd->scsi_done(scsi_cmd);
5695}
5696
5697/**
5698 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5699 * @ipr_cmd: ipr command struct
5700 *
5701 * Return value:
5702 * none
5703 **/
5704static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5705{
51b1c7e1 5706 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
96d21f00 5707 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
a32c055f 5708 dma_addr_t dma_addr = ipr_cmd->dma_addr;
1da177e4
LT		 5709
5710 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
a32c055f 5711 ioarcb->data_transfer_length = 0;
1da177e4 5712 ioarcb->read_data_transfer_length = 0;
a32c055f 5713 ioarcb->ioadl_len = 0;
1da177e4 5714 ioarcb->read_ioadl_len = 0;
96d21f00
WB		 5715 ioasa->hdr.ioasc = 0;
5716 ioasa->hdr.residual_data_len = 0;
a32c055f
WB		 5717
5718 if (ipr_cmd->ioa_cfg->sis64)
5719 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5720 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5721 else {
5722 ioarcb->write_ioadl_addr =
5723 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5724 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5725 }
1da177e4
LT		 5726}
5727
5728/**
5729 * ipr_erp_request_sense - Send request sense to a device
5730 * @ipr_cmd: ipr command struct
5731 *
5732 * This function sends a request sense to a device as a result
5733 * of a check condition.
5734 *
5735 * Return value:
5736 * nothing
5737 **/
5738static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5739{
5740 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
96d21f00 5741 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 5742
5743 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5744 ipr_erp_done(ipr_cmd);
5745 return;
5746 }
5747
5748 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5749
5750 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5751 cmd_pkt->cdb[0] = REQUEST_SENSE;
5752 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5753 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5754 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5755 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5756
a32c055f
WB		 5757 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5758 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 5759
5760 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5761 IPR_REQUEST_SENSE_TIMEOUT * 2);
5762}
5763
5764/**
5765 * ipr_erp_cancel_all - Send cancel all to a device
5766 * @ipr_cmd: ipr command struct
5767 *
5768 * This function sends a cancel all to a device to clear the
5769 * queue. If we are running TCQ on the device, QERR is set to 1,
5770 * which means all outstanding ops have been dropped on the floor.
5771 * Cancel all will return them to us.
5772 *
5773 * Return value:
5774 * nothing
5775 **/
5776static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5777{
5778 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5779 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5780 struct ipr_cmd_pkt *cmd_pkt;
5781
5782 res->in_erp = 1;
5783
5784 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5785
5786 if (!scsi_get_tag_type(scsi_cmd->device)) {
5787 ipr_erp_request_sense(ipr_cmd);
5788 return;
5789 }
5790
5791 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5792 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5793 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5794
5795 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5796 IPR_CANCEL_ALL_TIMEOUT);
5797}
5798
5799/**
5800 * ipr_dump_ioasa - Dump contents of IOASA
5801 * @ioa_cfg: ioa config struct
5802 * @ipr_cmd: ipr command struct
fe964d0a 5803 * @res: resource entry struct
1da177e4
LT		 5804 *
5805 * This function is invoked by the interrupt handler when ops
5806 * fail. It will log the IOASA if appropriate. Only called
5807 * for GPDD ops.
5808 *
5809 * Return value:
5810 * none
5811 **/
5812static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
fe964d0a 5813 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
1da177e4
LT		 5814{
5815 int i;
5816 u16 data_len;
b0692dd4 5817 u32 ioasc, fd_ioasc;
96d21f00 5818 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
1da177e4
LT		 5819 __be32 *ioasa_data = (__be32 *)ioasa;
5820 int error_index;
5821
96d21f00
WB		 5822 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5823 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 5824
5825 if (0 == ioasc)
5826 return;
5827
5828 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5829 return;
5830
b0692dd4
BK		 5831 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5832 error_index = ipr_get_error(fd_ioasc);
5833 else
5834 error_index = ipr_get_error(ioasc);
1da177e4
LT		 5835
5836 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5837 /* Don't log an error if the IOA already logged one */
96d21f00 5838 if (ioasa->hdr.ilid != 0)
1da177e4
LT		 5839 return;
5840
cc9bd5d4
BK		 5841 if (!ipr_is_gscsi(res))
5842 return;
5843
1da177e4
LT		 5844 if (ipr_error_table[error_index].log_ioasa == 0)
5845 return;
5846 }
5847
fe964d0a 5848 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
1da177e4 5849
96d21f00
WB		 5850 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5851 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5852 data_len = sizeof(struct ipr_ioasa64);
5853 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
1da177e4 5854 data_len = sizeof(struct ipr_ioasa);
1da177e4
LT		 5855
5856 ipr_err("IOASA Dump:\n");
5857
5858 for (i = 0; i < data_len / 4; i += 4) {
5859 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5860 be32_to_cpu(ioasa_data[i]),
5861 be32_to_cpu(ioasa_data[i+1]),
5862 be32_to_cpu(ioasa_data[i+2]),
5863 be32_to_cpu(ioasa_data[i+3]));
5864 }
5865}
5866
5867/**
5868 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5869 * @ioasa: IOASA
5870 * @sense_buf: sense data buffer
5871 *
5872 * Return value:
5873 * none
5874 **/
5875static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5876{
5877 u32 failing_lba;
5878 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5879 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
96d21f00
WB		 5880 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5881 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
1da177e4
LT		 5882
5883 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5884
5885 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5886 return;
5887
5888 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5889
5890 if (ipr_is_vset_device(res) &&
5891 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5892 ioasa->u.vset.failing_lba_hi != 0) {
5893 sense_buf[0] = 0x72;
5894 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5895 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5896 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5897
5898 sense_buf[7] = 12;
5899 sense_buf[8] = 0;
5900 sense_buf[9] = 0x0A;
5901 sense_buf[10] = 0x80;
5902
5903 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5904
5905 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5906 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5907 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5908 sense_buf[15] = failing_lba & 0x000000ff;
5909
5910 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5911
5912 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5913 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5914 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5915 sense_buf[19] = failing_lba & 0x000000ff;
5916 } else {
5917 sense_buf[0] = 0x70;
5918 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5919 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5920 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5921
5922 /* Illegal request */
5923 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
96d21f00 5924 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
1da177e4
LT		 5925 sense_buf[7] = 10; /* additional length */
5926
5927 /* IOARCB was in error */
5928 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5929 sense_buf[15] = 0xC0;
5930 else /* Parameter data was invalid */
5931 sense_buf[15] = 0x80;
5932
5933 sense_buf[16] =
5934 ((IPR_FIELD_POINTER_MASK &
96d21f00 5935 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
1da177e4
LT		 5936 sense_buf[17] =
5937 (IPR_FIELD_POINTER_MASK &
96d21f00 5938 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
1da177e4
LT		 5939 } else {
5940 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5941 if (ipr_is_vset_device(res))
5942 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5943 else
5944 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5945
5946 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5947 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5948 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5949 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5950 sense_buf[6] = failing_lba & 0x000000ff;
5951 }
5952
5953 sense_buf[7] = 6; /* additional length */
5954 }
5955 }
5956}
5957
ee0a90fa
BK		 5958/**
5959 * ipr_get_autosense - Copy autosense data to sense buffer
5960 * @ipr_cmd: ipr command struct
5961 *
5962 * This function copies the autosense buffer to the buffer
5963 * in the scsi_cmd, if there is autosense available.
5964 *
5965 * Return value:
5966 * 1 if autosense was available / 0 if not
5967 **/
5968static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5969{
96d21f00
WB		 5970 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5971 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
ee0a90fa 5972
96d21f00 5973 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
ee0a90fa
BK		 5974 return 0;
5975
96d21f00
WB		 5976 if (ipr_cmd->ioa_cfg->sis64)
5977 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5978 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5979 SCSI_SENSE_BUFFERSIZE));
5980 else
5981 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5982 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5983 SCSI_SENSE_BUFFERSIZE));
ee0a90fa
BK		 5984 return 1;
5985}
5986
1da177e4
LT		 5987/**
5988 * ipr_erp_start - Process an error response for a SCSI op
5989 * @ioa_cfg: ioa config struct
5990 * @ipr_cmd: ipr command struct
5991 *
5992 * This function determines whether or not to initiate ERP
5993 * on the affected device.
5994 *
5995 * Return value:
5996 * nothing
5997 **/
5998static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5999 struct ipr_cmnd *ipr_cmd)
6000{
6001 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
6002 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
96d21f00 6003 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8a048994 6004 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
1da177e4
LT		 6005
6006 if (!res) {
6007 ipr_scsi_eh_done(ipr_cmd);
6008 return;
6009 }
6010
8a048994 6011 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
1da177e4
LT		 6012 ipr_gen_sense(ipr_cmd);
6013
cc9bd5d4
BK		 6014 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6015
8a048994 6016 switch (masked_ioasc) {
1da177e4 6017 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
ee0a90fa
BK		 6018 if (ipr_is_naca_model(res))
6019 scsi_cmd->result |= (DID_ABORT << 16);
6020 else
6021 scsi_cmd->result |= (DID_IMM_RETRY << 16);
1da177e4
LT		 6022 break;
6023 case IPR_IOASC_IR_RESOURCE_HANDLE:
b0df54bb 6024 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
1da177e4
LT		 6025 scsi_cmd->result |= (DID_NO_CONNECT << 16);
6026 break;
6027 case IPR_IOASC_HW_SEL_TIMEOUT:
6028 scsi_cmd->result |= (DID_NO_CONNECT << 16);
ee0a90fa
BK		 6029 if (!ipr_is_naca_model(res))
6030 res->needs_sync_complete = 1;
1da177e4
LT		 6031 break;
6032 case IPR_IOASC_SYNC_REQUIRED:
6033 if (!res->in_erp)
6034 res->needs_sync_complete = 1;
6035 scsi_cmd->result |= (DID_IMM_RETRY << 16);
6036 break;
6037 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
b0df54bb 6038 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
1da177e4
LT		 6039 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
6040 break;
6041 case IPR_IOASC_BUS_WAS_RESET:
6042 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
6043 /*
6044 * Report the bus reset and ask for a retry. The device
6045 * will give CC/UA the next command.
6046 */
6047 if (!res->resetting_device)
6048 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
6049 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa
BK		 6050 if (!ipr_is_naca_model(res))
6051 res->needs_sync_complete = 1;
1da177e4
LT		 6052 break;
6053 case IPR_IOASC_HW_DEV_BUS_STATUS:
6054 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
6055 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
ee0a90fa
BK		 6056 if (!ipr_get_autosense(ipr_cmd)) {
6057 if (!ipr_is_naca_model(res)) {
6058 ipr_erp_cancel_all(ipr_cmd);
6059 return;
6060 }
6061 }
1da177e4 6062 }
ee0a90fa
BK		 6063 if (!ipr_is_naca_model(res))
6064 res->needs_sync_complete = 1;
1da177e4
LT		 6065 break;
6066 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
6067 break;
6068 default:
5b7304fb
BK		 6069 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6070 scsi_cmd->result |= (DID_ERROR << 16);
ee0a90fa 6071 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
1da177e4
LT		 6072 res->needs_sync_complete = 1;
6073 break;
6074 }
6075
63015bc9 6076 scsi_dma_unmap(ipr_cmd->scsi_cmd);
05a6538a 6077 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6078 scsi_cmd->scsi_done(scsi_cmd);
6079}
6080
6081/**
6082 * ipr_scsi_done - mid-layer done function
6083 * @ipr_cmd: ipr command struct
6084 *
6085 * This function is invoked by the interrupt handler for
6086 * ops generated by the SCSI mid-layer
6087 *
6088 * Return value:
6089 * none
6090 **/
6091static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
6092{
6093 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6094 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
96d21f00 6095 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
05a6538a 6096 unsigned long hrrq_flags;
1da177e4 6097
96d21f00 6098 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
1da177e4
LT		 6099
6100 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
172cd6e1
BK		 6101 scsi_dma_unmap(scsi_cmd);
6102
56d6aa33 6103 spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
05a6538a 6104 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6105 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6106 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
172cd6e1 6107 } else {
56d6aa33 6108 spin_lock_irqsave(ipr_cmd->hrrq->lock, hrrq_flags);
1da177e4 6109 ipr_erp_start(ioa_cfg, ipr_cmd);
56d6aa33 6110 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, hrrq_flags);
172cd6e1 6111 }
1da177e4
LT		 6112}
6113
1da177e4
LT		 6114/**
6115 * ipr_queuecommand - Queue a mid-layer request
00bfef2c 6116 * @shost: scsi host struct
1da177e4 6117 * @scsi_cmd: scsi command struct
1da177e4
LT		 6118 *
6119 * This function queues a request generated by the mid-layer.
6120 *
6121 * Return value:
6122 * 0 on success
6123 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
6124 * SCSI_MLQUEUE_HOST_BUSY if host is busy
6125 **/
00bfef2c
BK		 6126static int ipr_queuecommand(struct Scsi_Host *shost,
6127 struct scsi_cmnd *scsi_cmd)
1da177e4
LT		 6128{
6129 struct ipr_ioa_cfg *ioa_cfg;
6130 struct ipr_resource_entry *res;
6131 struct ipr_ioarcb *ioarcb;
6132 struct ipr_cmnd *ipr_cmd;
56d6aa33 6133 unsigned long hrrq_flags, lock_flags;
d12f1576 6134 int rc;
05a6538a 6135 struct ipr_hrr_queue *hrrq;
6136 int hrrq_id;
1da177e4 6137
00bfef2c
BK		 6138 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
6139
1da177e4 6140 scsi_cmd->result = (DID_OK << 16);
00bfef2c 6141 res = scsi_cmd->device->hostdata;
56d6aa33 6142
6143 if (ipr_is_gata(res) && res->sata_port) {
6144 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6145 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
6146 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6147 return rc;
6148 }
6149
05a6538a 6150 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6151 hrrq = &ioa_cfg->hrrq[hrrq_id];
1da177e4 6152
56d6aa33 6153 spin_lock_irqsave(hrrq->lock, hrrq_flags);
1da177e4
LT		 6154 /*
6155 * We are currently blocking all devices due to a host reset
6156 * We have told the host to stop giving us new requests, but
6157 * ERP ops don't count. FIXME
6158 */
bfae7820 6159 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) {
56d6aa33 6160 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6161 return SCSI_MLQUEUE_HOST_BUSY;
00bfef2c 6162 }
1da177e4
LT		 6163
6164 /*
6165 * FIXME - Create scsi_set_host_offline interface
6166 * and the ioa_is_dead check can be removed
6167 */
bfae7820 6168 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) {
56d6aa33 6169 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c 6170 goto err_nodev;
1da177e4
LT		 6171 }
6172
05a6538a 6173 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6174 if (ipr_cmd == NULL) {
56d6aa33 6175 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
05a6538a 6176 return SCSI_MLQUEUE_HOST_BUSY;
6177 }
56d6aa33 6178 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
35a39691 6179
172cd6e1 6180 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done);
1da177e4 6181 ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 6182
6183 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
6184 ipr_cmd->scsi_cmd = scsi_cmd;
172cd6e1 6185 ipr_cmd->done = ipr_scsi_eh_done;
1da177e4
LT		 6186
6187 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
6188 if (scsi_cmd->underflow == 0)
6189 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6190
1da177e4 6191 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
0b1f8d44
WX		 6192 if (ipr_is_gscsi(res) && res->reset_occurred) {
6193 res->reset_occurred = 0;
ab6c10b1 6194 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
0b1f8d44 6195 }
1da177e4 6196 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
50668633
CH		 6197 if (scsi_cmd->flags & SCMD_TAGGED)
6198 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK;
6199 else
6200 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK;
1da177e4
LT		 6201 }
6202
6203 if (scsi_cmd->cmnd[0] >= 0xC0 &&
05a6538a 6204 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) {
1da177e4 6205 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
05a6538a 6206 }
1da177e4 6207
d12f1576
DC		 6208 if (ioa_cfg->sis64)
6209 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
6210 else
6211 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
1da177e4 6212
56d6aa33 6213 spin_lock_irqsave(hrrq->lock, hrrq_flags);
6214 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) {
05a6538a 6215 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6216 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6217 if (!rc)
6218 scsi_dma_unmap(scsi_cmd);
a5fb407e 6219 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4
LT		 6220 }
6221
56d6aa33 6222 if (unlikely(hrrq->ioa_is_dead)) {
05a6538a 6223 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q);
56d6aa33 6224 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6225 scsi_dma_unmap(scsi_cmd);
6226 goto err_nodev;
6227 }
6228
6229 ioarcb->res_handle = res->res_handle;
6230 if (res->needs_sync_complete) {
6231 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
6232 res->needs_sync_complete = 0;
6233 }
05a6538a 6234 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q);
00bfef2c 6235 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
a5fb407e 6236 ipr_send_command(ipr_cmd);
56d6aa33 6237 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
1da177e4 6238 return 0;
1da177e4 6239
00bfef2c 6240err_nodev:
56d6aa33 6241 spin_lock_irqsave(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6242 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
6243 scsi_cmd->result = (DID_NO_CONNECT << 16);
6244 scsi_cmd->scsi_done(scsi_cmd);
56d6aa33 6245 spin_unlock_irqrestore(hrrq->lock, hrrq_flags);
00bfef2c
BK		 6246 return 0;
6247}
f281233d 6248
35a39691
BK		 6249/**
6250 * ipr_ioctl - IOCTL handler
6251 * @sdev: scsi device struct
6252 * @cmd: IOCTL cmd
6253 * @arg: IOCTL arg
6254 *
6255 * Return value:
6256 * 0 on success / other on failure
6257 **/
bd705f2d 6258static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
35a39691
BK		 6259{
6260 struct ipr_resource_entry *res;
6261
6262 res = (struct ipr_resource_entry *)sdev->hostdata;
0ce3a7e5
BK		 6263 if (res && ipr_is_gata(res)) {
6264 if (cmd == HDIO_GET_IDENTITY)
6265 return -ENOTTY;
94be9a58 6266 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
0ce3a7e5 6267 }
35a39691
BK		 6268
6269 return -EINVAL;
6270}
6271
1da177e4
LT		 6272/**
6273 * ipr_info - Get information about the card/driver
6274 * @scsi_host: scsi host struct
6275 *
6276 * Return value:
6277 * pointer to buffer with description string
6278 **/
203fa3fe 6279static const char *ipr_ioa_info(struct Scsi_Host *host)
1da177e4
LT		 6280{
6281 static char buffer[512];
6282 struct ipr_ioa_cfg *ioa_cfg;
6283 unsigned long lock_flags = 0;
6284
6285 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
6286
6287 spin_lock_irqsave(host->host_lock, lock_flags);
6288 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
6289 spin_unlock_irqrestore(host->host_lock, lock_flags);
6290
6291 return buffer;
6292}
6293
6294static struct scsi_host_template driver_template = {
6295 .module = THIS_MODULE,
6296 .name = "IPR",
6297 .info = ipr_ioa_info,
35a39691 6298 .ioctl = ipr_ioctl,
1da177e4
LT		 6299 .queuecommand = ipr_queuecommand,
6300 .eh_abort_handler = ipr_eh_abort,
6301 .eh_device_reset_handler = ipr_eh_dev_reset,
6302 .eh_host_reset_handler = ipr_eh_host_reset,
6303 .slave_alloc = ipr_slave_alloc,
6304 .slave_configure = ipr_slave_configure,
6305 .slave_destroy = ipr_slave_destroy,
35a39691
BK		 6306 .target_alloc = ipr_target_alloc,
6307 .target_destroy = ipr_target_destroy,
1da177e4
LT		 6308 .change_queue_depth = ipr_change_queue_depth,
6309 .change_queue_type = ipr_change_queue_type,
6310 .bios_param = ipr_biosparam,
6311 .can_queue = IPR_MAX_COMMANDS,
6312 .this_id = -1,
6313 .sg_tablesize = IPR_MAX_SGLIST,
6314 .max_sectors = IPR_IOA_MAX_SECTORS,
6315 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
6316 .use_clustering = ENABLE_CLUSTERING,
6317 .shost_attrs = ipr_ioa_attrs,
6318 .sdev_attrs = ipr_dev_attrs,
54b2b50c
MP		 6319 .proc_name = IPR_NAME,
6320 .no_write_same = 1,
2ecb204d 6321 .use_blk_tags = 1,
1da177e4
LT		 6322};
6323
35a39691
BK		 6324/**
6325 * ipr_ata_phy_reset - libata phy_reset handler
6326 * @ap: ata port to reset
6327 *
6328 **/
6329static void ipr_ata_phy_reset(struct ata_port *ap)
6330{
6331 unsigned long flags;
6332 struct ipr_sata_port *sata_port = ap->private_data;
6333 struct ipr_resource_entry *res = sata_port->res;
6334 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6335 int rc;
6336
6337 ENTER;
6338 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6339 while (ioa_cfg->in_reset_reload) {
35a39691
BK		 6340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6341 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6342 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6343 }
6344
56d6aa33 6345 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
35a39691
BK		 6346 goto out_unlock;
6347
6348 rc = ipr_device_reset(ioa_cfg, res);
6349
6350 if (rc) {
3e4ec344 6351 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6352 goto out_unlock;
6353 }
6354
3e7ebdfa
WB		 6355 ap->link.device[0].class = res->ata_class;
6356 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
3e4ec344 6357 ap->link.device[0].class = ATA_DEV_NONE;
35a39691
BK		 6358
6359out_unlock:
6360 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6361 LEAVE;
6362}
6363
6364/**
6365 * ipr_ata_post_internal - Cleanup after an internal command
6366 * @qc: ATA queued command
6367 *
6368 * Return value:
6369 * none
6370 **/
6371static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
6372{
6373 struct ipr_sata_port *sata_port = qc->ap->private_data;
6374 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6375 struct ipr_cmnd *ipr_cmd;
05a6538a 6376 struct ipr_hrr_queue *hrrq;
35a39691
BK		 6377 unsigned long flags;
6378
6379 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
203fa3fe 6380 while (ioa_cfg->in_reset_reload) {
73d98ff0
BK		 6381 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6382 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6383 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6384 }
6385
05a6538a 6386 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 6387 spin_lock(&hrrq->_lock);
05a6538a 6388 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) {
6389 if (ipr_cmd->qc == qc) {
6390 ipr_device_reset(ioa_cfg, sata_port->res);
6391 break;
6392 }
35a39691 6393 }
56d6aa33 6394 spin_unlock(&hrrq->_lock);
35a39691
BK		 6395 }
6396 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6397}
6398
35a39691
BK		 6399/**
6400 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6401 * @regs: destination
6402 * @tf: source ATA taskfile
6403 *
6404 * Return value:
6405 * none
6406 **/
6407static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6408 struct ata_taskfile *tf)
6409{
6410 regs->feature = tf->feature;
6411 regs->nsect = tf->nsect;
6412 regs->lbal = tf->lbal;
6413 regs->lbam = tf->lbam;
6414 regs->lbah = tf->lbah;
6415 regs->device = tf->device;
6416 regs->command = tf->command;
6417 regs->hob_feature = tf->hob_feature;
6418 regs->hob_nsect = tf->hob_nsect;
6419 regs->hob_lbal = tf->hob_lbal;
6420 regs->hob_lbam = tf->hob_lbam;
6421 regs->hob_lbah = tf->hob_lbah;
6422 regs->ctl = tf->ctl;
6423}
6424
6425/**
6426 * ipr_sata_done - done function for SATA commands
6427 * @ipr_cmd: ipr command struct
6428 *
6429 * This function is invoked by the interrupt handler for
6430 * ops generated by the SCSI mid-layer to SATA devices
6431 *
6432 * Return value:
6433 * none
6434 **/
6435static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6436{
6437 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6438 struct ata_queued_cmd *qc = ipr_cmd->qc;
6439 struct ipr_sata_port *sata_port = qc->ap->private_data;
6440 struct ipr_resource_entry *res = sata_port->res;
96d21f00 6441 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
35a39691 6442
56d6aa33 6443 spin_lock(&ipr_cmd->hrrq->_lock);
96d21f00
WB		 6444 if (ipr_cmd->ioa_cfg->sis64)
6445 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6446 sizeof(struct ipr_ioasa_gata));
6447 else
6448 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6449 sizeof(struct ipr_ioasa_gata));
35a39691
BK		 6450 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6451
96d21f00 6452 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
3e7ebdfa 6453 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
35a39691
BK		 6454
6455 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
96d21f00 6456 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
35a39691 6457 else
96d21f00 6458 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
05a6538a 6459 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
56d6aa33 6460 spin_unlock(&ipr_cmd->hrrq->_lock);
35a39691
BK		 6461 ata_qc_complete(qc);
6462}
6463
a32c055f
WB		 6464/**
6465 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6466 * @ipr_cmd: ipr command struct
6467 * @qc: ATA queued command
6468 *
6469 **/
6470static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6471 struct ata_queued_cmd *qc)
6472{
6473 u32 ioadl_flags = 0;
6474 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1ac7c26d 6475 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64;
a32c055f
WB		 6476 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6477 int len = qc->nbytes;
6478 struct scatterlist *sg;
6479 unsigned int si;
6480 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6481
6482 if (len == 0)
6483 return;
6484
6485 if (qc->dma_dir == DMA_TO_DEVICE) {
6486 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6487 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6488 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6489 ioadl_flags = IPR_IOADL_FLAGS_READ;
6490
6491 ioarcb->data_transfer_length = cpu_to_be32(len);
6492 ioarcb->ioadl_len =
6493 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6494 ioarcb->u.sis64_addr_data.data_ioadl_addr =
1ac7c26d 6495 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64));
a32c055f
WB		 6496
6497 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6498 ioadl64->flags = cpu_to_be32(ioadl_flags);
6499 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6500 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6501
6502 last_ioadl64 = ioadl64;
6503 ioadl64++;
6504 }
6505
6506 if (likely(last_ioadl64))
6507 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6508}
6509
35a39691
BK		 6510/**
6511 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6512 * @ipr_cmd: ipr command struct
6513 * @qc: ATA queued command
6514 *
6515 **/
6516static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6517 struct ata_queued_cmd *qc)
6518{
6519 u32 ioadl_flags = 0;
6520 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
a32c055f 6521 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3be6cbd7 6522 struct ipr_ioadl_desc *last_ioadl = NULL;
dde20207 6523 int len = qc->nbytes;
35a39691 6524 struct scatterlist *sg;
ff2aeb1e 6525 unsigned int si;
35a39691
BK		 6526
6527 if (len == 0)
6528 return;
6529
6530 if (qc->dma_dir == DMA_TO_DEVICE) {
6531 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6532 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
a32c055f
WB		 6533 ioarcb->data_transfer_length = cpu_to_be32(len);
6534 ioarcb->ioadl_len =
35a39691
BK		 6535 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6536 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6537 ioadl_flags = IPR_IOADL_FLAGS_READ;
6538 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6539 ioarcb->read_ioadl_len =
6540 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6541 }
6542
ff2aeb1e 6543 for_each_sg(qc->sg, sg, qc->n_elem, si) {
35a39691
BK		 6544 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6545 ioadl->address = cpu_to_be32(sg_dma_address(sg));
3be6cbd7
JG		 6546
6547 last_ioadl = ioadl;
6548 ioadl++;
35a39691 6549 }
3be6cbd7
JG		 6550
6551 if (likely(last_ioadl))
6552 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
35a39691
BK		 6553}
6554
56d6aa33 6555/**
6556 * ipr_qc_defer - Get a free ipr_cmd
6557 * @qc: queued command
6558 *
6559 * Return value:
6560 * 0 if success
6561 **/
6562static int ipr_qc_defer(struct ata_queued_cmd *qc)
6563{
6564 struct ata_port *ap = qc->ap;
6565 struct ipr_sata_port *sata_port = ap->private_data;
6566 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6567 struct ipr_cmnd *ipr_cmd;
6568 struct ipr_hrr_queue *hrrq;
6569 int hrrq_id;
6570
6571 hrrq_id = ipr_get_hrrq_index(ioa_cfg);
6572 hrrq = &ioa_cfg->hrrq[hrrq_id];
6573
6574 qc->lldd_task = NULL;
6575 spin_lock(&hrrq->_lock);
6576 if (unlikely(hrrq->ioa_is_dead)) {
6577 spin_unlock(&hrrq->_lock);
6578 return 0;
6579 }
6580
6581 if (unlikely(!hrrq->allow_cmds)) {
6582 spin_unlock(&hrrq->_lock);
6583 return ATA_DEFER_LINK;
6584 }
6585
6586 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq);
6587 if (ipr_cmd == NULL) {
6588 spin_unlock(&hrrq->_lock);
6589 return ATA_DEFER_LINK;
6590 }
6591
6592 qc->lldd_task = ipr_cmd;
6593 spin_unlock(&hrrq->_lock);
6594 return 0;
6595}
6596
35a39691
BK		 6597/**
6598 * ipr_qc_issue - Issue a SATA qc to a device
6599 * @qc: queued command
6600 *
6601 * Return value:
6602 * 0 if success
6603 **/
6604static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6605{
6606 struct ata_port *ap = qc->ap;
6607 struct ipr_sata_port *sata_port = ap->private_data;
6608 struct ipr_resource_entry *res = sata_port->res;
6609 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6610 struct ipr_cmnd *ipr_cmd;
6611 struct ipr_ioarcb *ioarcb;
6612 struct ipr_ioarcb_ata_regs *regs;
6613
56d6aa33 6614 if (qc->lldd_task == NULL)
6615 ipr_qc_defer(qc);
6616
6617 ipr_cmd = qc->lldd_task;
6618 if (ipr_cmd == NULL)
0feeed82 6619 return AC_ERR_SYSTEM;
35a39691 6620
56d6aa33 6621 qc->lldd_task = NULL;
6622 spin_lock(&ipr_cmd->hrrq->_lock);
6623 if (unlikely(!ipr_cmd->hrrq->allow_cmds ||
6624 ipr_cmd->hrrq->ioa_is_dead)) {
6625 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
6626 spin_unlock(&ipr_cmd->hrrq->_lock);
6627 return AC_ERR_SYSTEM;
6628 }
6629
05a6538a 6630 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done);
35a39691 6631 ioarcb = &ipr_cmd->ioarcb;
35a39691 6632
a32c055f
WB		 6633 if (ioa_cfg->sis64) {
6634 regs = &ipr_cmd->i.ata_ioadl.regs;
6635 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6636 } else
6637 regs = &ioarcb->u.add_data.u.regs;
6638
6639 memset(regs, 0, sizeof(*regs));
6640 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
35a39691 6641
56d6aa33 6642 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
35a39691
BK		 6643 ipr_cmd->qc = qc;
6644 ipr_cmd->done = ipr_sata_done;
3e7ebdfa 6645 ipr_cmd->ioarcb.res_handle = res->res_handle;
35a39691
BK		 6646 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6647 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6648 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
dde20207 6649 ipr_cmd->dma_use_sg = qc->n_elem;
35a39691 6650
a32c055f
WB		 6651 if (ioa_cfg->sis64)
6652 ipr_build_ata_ioadl64(ipr_cmd, qc);
6653 else
6654 ipr_build_ata_ioadl(ipr_cmd, qc);
6655
35a39691
BK		 6656 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6657 ipr_copy_sata_tf(regs, &qc->tf);
6658 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
3e7ebdfa 6659 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
35a39691
BK		 6660
6661 switch (qc->tf.protocol) {
6662 case ATA_PROT_NODATA:
6663 case ATA_PROT_PIO:
6664 break;
6665
6666 case ATA_PROT_DMA:
6667 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6668 break;
6669
0dc36888
TH		 6670 case ATAPI_PROT_PIO:
6671 case ATAPI_PROT_NODATA:
35a39691
BK		 6672 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6673 break;
6674
0dc36888 6675 case ATAPI_PROT_DMA:
35a39691
BK		 6676 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6677 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6678 break;
6679
6680 default:
6681 WARN_ON(1);
56d6aa33 6682 spin_unlock(&ipr_cmd->hrrq->_lock);
0feeed82 6683 return AC_ERR_INVALID;
35a39691
BK		 6684 }
6685
a32c055f 6686 ipr_send_command(ipr_cmd);
56d6aa33 6687 spin_unlock(&ipr_cmd->hrrq->_lock);
a32c055f 6688
35a39691
BK		 6689 return 0;
6690}
6691
4c9bf4e7
TH		 6692/**
6693 * ipr_qc_fill_rtf - Read result TF
6694 * @qc: ATA queued command
6695 *
6696 * Return value:
6697 * true
6698 **/
6699static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6700{
6701 struct ipr_sata_port *sata_port = qc->ap->private_data;
6702 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6703 struct ata_taskfile *tf = &qc->result_tf;
6704
6705 tf->feature = g->error;
6706 tf->nsect = g->nsect;
6707 tf->lbal = g->lbal;
6708 tf->lbam = g->lbam;
6709 tf->lbah = g->lbah;
6710 tf->device = g->device;
6711 tf->command = g->status;
6712 tf->hob_nsect = g->hob_nsect;
6713 tf->hob_lbal = g->hob_lbal;
6714 tf->hob_lbam = g->hob_lbam;
6715 tf->hob_lbah = g->hob_lbah;
4c9bf4e7
TH		 6716
6717 return true;
6718}
6719
35a39691 6720static struct ata_port_operations ipr_sata_ops = {
35a39691 6721 .phy_reset = ipr_ata_phy_reset,
a1efdaba 6722 .hardreset = ipr_sata_reset,
35a39691 6723 .post_internal_cmd = ipr_ata_post_internal,
35a39691 6724 .qc_prep = ata_noop_qc_prep,
56d6aa33 6725 .qc_defer = ipr_qc_defer,
35a39691 6726 .qc_issue = ipr_qc_issue,
4c9bf4e7 6727 .qc_fill_rtf = ipr_qc_fill_rtf,
35a39691
BK		 6728 .port_start = ata_sas_port_start,
6729 .port_stop = ata_sas_port_stop
6730};
6731
6732static struct ata_port_info sata_port_info = {
9cbe056f 6733 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
0f2e0330
SS		 6734 .pio_mask = ATA_PIO4_ONLY,
6735 .mwdma_mask = ATA_MWDMA2,
6736 .udma_mask = ATA_UDMA6,
35a39691
BK		 6737 .port_ops = &ipr_sata_ops
6738};
6739
1da177e4
LT		 6740#ifdef CONFIG_PPC_PSERIES
6741static const u16 ipr_blocked_processors[] = {
d3dbeef6
ME		 6742 PVR_NORTHSTAR,
6743 PVR_PULSAR,
6744 PVR_POWER4,
6745 PVR_ICESTAR,
6746 PVR_SSTAR,
6747 PVR_POWER4p,
6748 PVR_630,
6749 PVR_630p
1da177e4
LT		 6750};
6751
6752/**
6753 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6754 * @ioa_cfg: ioa cfg struct
6755 *
6756 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6757 * certain pSeries hardware. This function determines if the given
6758 * adapter is in one of these confgurations or not.
6759 *
6760 * Return value:
6761 * 1 if adapter is not supported / 0 if adapter is supported
6762 **/
6763static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6764{
1da177e4
LT		 6765 int i;
6766
44c10138 6767 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
203fa3fe 6768 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) {
d3dbeef6 6769 if (pvr_version_is(ipr_blocked_processors[i]))
44c10138 6770 return 1;
1da177e4
LT		 6771 }
6772 }
6773 return 0;
6774}
6775#else
6776#define ipr_invalid_adapter(ioa_cfg) 0
6777#endif
6778
6779/**
6780 * ipr_ioa_bringdown_done - IOA bring down completion.
6781 * @ipr_cmd: ipr command struct
6782 *
6783 * This function processes the completion of an adapter bring down.
6784 * It wakes any reset sleepers.
6785 *
6786 * Return value:
6787 * IPR_RC_JOB_RETURN
6788 **/
6789static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6790{
6791 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96b04db9 6792 int i;
1da177e4
LT		 6793
6794 ENTER;
bfae7820
BK		 6795 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
6796 ipr_trace;
6797 spin_unlock_irq(ioa_cfg->host->host_lock);
6798 scsi_unblock_requests(ioa_cfg->host);
6799 spin_lock_irq(ioa_cfg->host->host_lock);
6800 }
6801
1da177e4
LT		 6802 ioa_cfg->in_reset_reload = 0;
6803 ioa_cfg->reset_retries = 0;
96b04db9 6804 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
6805 spin_lock(&ioa_cfg->hrrq[i]._lock);
6806 ioa_cfg->hrrq[i].ioa_is_dead = 1;
6807 spin_unlock(&ioa_cfg->hrrq[i]._lock);
6808 }
6809 wmb();
6810
05a6538a 6811 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4 6812 wake_up_all(&ioa_cfg->reset_wait_q);
1da177e4
LT		 6813 LEAVE;
6814
6815 return IPR_RC_JOB_RETURN;
6816}
6817
6818/**
6819 * ipr_ioa_reset_done - IOA reset completion.
6820 * @ipr_cmd: ipr command struct
6821 *
6822 * This function processes the completion of an adapter reset.
6823 * It schedules any necessary mid-layer add/removes and
6824 * wakes any reset sleepers.
6825 *
6826 * Return value:
6827 * IPR_RC_JOB_RETURN
6828 **/
6829static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6830{
6831 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6832 struct ipr_resource_entry *res;
6833 struct ipr_hostrcb *hostrcb, *temp;
56d6aa33 6834 int i = 0, j;
1da177e4
LT		 6835
6836 ENTER;
6837 ioa_cfg->in_reset_reload = 0;
56d6aa33 6838 for (j = 0; j < ioa_cfg->hrrq_num; j++) {
6839 spin_lock(&ioa_cfg->hrrq[j]._lock);
6840 ioa_cfg->hrrq[j].allow_cmds = 1;
6841 spin_unlock(&ioa_cfg->hrrq[j]._lock);
6842 }
6843 wmb();
1da177e4 6844 ioa_cfg->reset_cmd = NULL;
3d1d0da6 6845 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
1da177e4
LT		 6846
6847 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6848 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6849 ipr_trace;
6850 break;
6851 }
6852 }
6853 schedule_work(&ioa_cfg->work_q);
6854
6855 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6856 list_del(&hostrcb->queue);
6857 if (i++ < IPR_NUM_LOG_HCAMS)
6858 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6859 else
6860 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6861 }
6862
6bb04170 6863 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
1da177e4
LT		 6864 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6865
6866 ioa_cfg->reset_retries = 0;
05a6538a 6867 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 6868 wake_up_all(&ioa_cfg->reset_wait_q);
6869
30237853 6870 spin_unlock(ioa_cfg->host->host_lock);
1da177e4 6871 scsi_unblock_requests(ioa_cfg->host);
30237853 6872 spin_lock(ioa_cfg->host->host_lock);
1da177e4 6873
56d6aa33 6874 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
1da177e4
LT		 6875 scsi_block_requests(ioa_cfg->host);
6876
6877 LEAVE;
6878 return IPR_RC_JOB_RETURN;
6879}
6880
6881/**
6882 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6883 * @supported_dev: supported device struct
6884 * @vpids: vendor product id struct
6885 *
6886 * Return value:
6887 * none
6888 **/
6889static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6890 struct ipr_std_inq_vpids *vpids)
6891{
6892 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6893 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6894 supported_dev->num_records = 1;
6895 supported_dev->data_length =
6896 cpu_to_be16(sizeof(struct ipr_supported_device));
6897 supported_dev->reserved = 0;
6898}
6899
6900/**
6901 * ipr_set_supported_devs - Send Set Supported Devices for a device
6902 * @ipr_cmd: ipr command struct
6903 *
a32c055f 6904 * This function sends a Set Supported Devices to the adapter
1da177e4
LT		 6905 *
6906 * Return value:
6907 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6908 **/
6909static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6910{
6911 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6912 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
1da177e4
LT		 6913 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6914 struct ipr_resource_entry *res = ipr_cmd->u.res;
6915
6916 ipr_cmd->job_step = ipr_ioa_reset_done;
6917
6918 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
e4fbf44e 6919 if (!ipr_is_scsi_disk(res))
1da177e4
LT		 6920 continue;
6921
6922 ipr_cmd->u.res = res;
3e7ebdfa 6923 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
1da177e4
LT		 6924
6925 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6926 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6927 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6928
6929 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
3e7ebdfa 6930 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
1da177e4
LT		 6931 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6932 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6933
a32c055f
WB		 6934 ipr_init_ioadl(ipr_cmd,
6935 ioa_cfg->vpd_cbs_dma +
6936 offsetof(struct ipr_misc_cbs, supp_dev),
6937 sizeof(struct ipr_supported_device),
6938 IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 6939
6940 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6941 IPR_SET_SUP_DEVICE_TIMEOUT);
6942
3e7ebdfa
WB		 6943 if (!ioa_cfg->sis64)
6944 ipr_cmd->job_step = ipr_set_supported_devs;
05a6538a 6945 LEAVE;
1da177e4
LT		 6946 return IPR_RC_JOB_RETURN;
6947 }
6948
05a6538a 6949 LEAVE;
1da177e4
LT		 6950 return IPR_RC_JOB_CONTINUE;
6951}
6952
6953/**
6954 * ipr_get_mode_page - Locate specified mode page
6955 * @mode_pages: mode page buffer
6956 * @page_code: page code to find
6957 * @len: minimum required length for mode page
6958 *
6959 * Return value:
6960 * pointer to mode page / NULL on failure
6961 **/
6962static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6963 u32 page_code, u32 len)
6964{
6965 struct ipr_mode_page_hdr *mode_hdr;
6966 u32 page_length;
6967 u32 length;
6968
6969 if (!mode_pages || (mode_pages->hdr.length == 0))
6970 return NULL;
6971
6972 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6973 mode_hdr = (struct ipr_mode_page_hdr *)
6974 (mode_pages->data + mode_pages->hdr.block_desc_len);
6975
6976 while (length) {
6977 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6978 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6979 return mode_hdr;
6980 break;
6981 } else {
6982 page_length = (sizeof(struct ipr_mode_page_hdr) +
6983 mode_hdr->page_length);
6984 length -= page_length;
6985 mode_hdr = (struct ipr_mode_page_hdr *)
6986 ((unsigned long)mode_hdr + page_length);
6987 }
6988 }
6989 return NULL;
6990}
6991
6992/**
6993 * ipr_check_term_power - Check for term power errors
6994 * @ioa_cfg: ioa config struct
6995 * @mode_pages: IOAFP mode pages buffer
6996 *
6997 * Check the IOAFP's mode page 28 for term power errors
6998 *
6999 * Return value:
7000 * nothing
7001 **/
7002static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
7003 struct ipr_mode_pages *mode_pages)
7004{
7005 int i;
7006 int entry_length;
7007 struct ipr_dev_bus_entry *bus;
7008 struct ipr_mode_page28 *mode_page;
7009
7010 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7011 sizeof(struct ipr_mode_page28));
7012
7013 entry_length = mode_page->entry_length;
7014
7015 bus = mode_page->bus;
7016
7017 for (i = 0; i < mode_page->num_entries; i++) {
7018 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
7019 dev_err(&ioa_cfg->pdev->dev,
7020 "Term power is absent on scsi bus %d\n",
7021 bus->res_addr.bus);
7022 }
7023
7024 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
7025 }
7026}
7027
7028/**
7029 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
7030 * @ioa_cfg: ioa config struct
7031 *
7032 * Looks through the config table checking for SES devices. If
7033 * the SES device is in the SES table indicating a maximum SCSI
7034 * bus speed, the speed is limited for the bus.
7035 *
7036 * Return value:
7037 * none
7038 **/
7039static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
7040{
7041 u32 max_xfer_rate;
7042 int i;
7043
7044 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7045 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
7046 ioa_cfg->bus_attr[i].bus_width);
7047
7048 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
7049 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
7050 }
7051}
7052
7053/**
7054 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
7055 * @ioa_cfg: ioa config struct
7056 * @mode_pages: mode page 28 buffer
7057 *
7058 * Updates mode page 28 based on driver configuration
7059 *
7060 * Return value:
7061 * none
7062 **/
7063static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
203fa3fe 7064 struct ipr_mode_pages *mode_pages)
1da177e4
LT		 7065{
7066 int i, entry_length;
7067 struct ipr_dev_bus_entry *bus;
7068 struct ipr_bus_attributes *bus_attr;
7069 struct ipr_mode_page28 *mode_page;
7070
7071 mode_page = ipr_get_mode_page(mode_pages, 0x28,
7072 sizeof(struct ipr_mode_page28));
7073
7074 entry_length = mode_page->entry_length;
7075
7076 /* Loop for each device bus entry */
7077 for (i = 0, bus = mode_page->bus;
7078 i < mode_page->num_entries;
7079 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
7080 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
7081 dev_err(&ioa_cfg->pdev->dev,
7082 "Invalid resource address reported: 0x%08X\n",
7083 IPR_GET_PHYS_LOC(bus->res_addr));
7084 continue;
7085 }
7086
7087 bus_attr = &ioa_cfg->bus_attr[i];
7088 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
7089 bus->bus_width = bus_attr->bus_width;
7090 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
7091 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
7092 if (bus_attr->qas_enabled)
7093 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
7094 else
7095 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
7096 }
7097}
7098
7099/**
7100 * ipr_build_mode_select - Build a mode select command
7101 * @ipr_cmd: ipr command struct
7102 * @res_handle: resource handle to send command to
7103 * @parm: Byte 2 of Mode Sense command
7104 * @dma_addr: DMA buffer address
7105 * @xfer_len: data transfer length
7106 *
7107 * Return value:
7108 * none
7109 **/
7110static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
a32c055f
WB		 7111 __be32 res_handle, u8 parm,
7112 dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7113{
1da177e4
LT		 7114 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7115
7116 ioarcb->res_handle = res_handle;
7117 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7118 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
7119 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
7120 ioarcb->cmd_pkt.cdb[1] = parm;
7121 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7122
a32c055f 7123 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
1da177e4
LT		 7124}
7125
7126/**
7127 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
7128 * @ipr_cmd: ipr command struct
7129 *
7130 * This function sets up the SCSI bus attributes and sends
7131 * a Mode Select for Page 28 to activate them.
7132 *
7133 * Return value:
7134 * IPR_RC_JOB_RETURN
7135 **/
7136static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
7137{
7138 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7139 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7140 int length;
7141
7142 ENTER;
4733804c
BK		 7143 ipr_scsi_bus_speed_limit(ioa_cfg);
7144 ipr_check_term_power(ioa_cfg, mode_pages);
7145 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
7146 length = mode_pages->hdr.length + 1;
7147 mode_pages->hdr.length = 0;
1da177e4
LT		 7148
7149 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7150 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7151 length);
7152
f72919ec
WB		 7153 ipr_cmd->job_step = ipr_set_supported_devs;
7154 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7155 struct ipr_resource_entry, queue);
1da177e4
LT		 7156 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7157
7158 LEAVE;
7159 return IPR_RC_JOB_RETURN;
7160}
7161
7162/**
7163 * ipr_build_mode_sense - Builds a mode sense command
7164 * @ipr_cmd: ipr command struct
7165 * @res: resource entry struct
7166 * @parm: Byte 2 of mode sense command
7167 * @dma_addr: DMA address of mode sense buffer
7168 * @xfer_len: Size of DMA buffer
7169 *
7170 * Return value:
7171 * none
7172 **/
7173static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
7174 __be32 res_handle,
a32c055f 7175 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
1da177e4 7176{
1da177e4
LT		 7177 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7178
7179 ioarcb->res_handle = res_handle;
7180 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
7181 ioarcb->cmd_pkt.cdb[2] = parm;
7182 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7183 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7184
a32c055f 7185 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7186}
7187
dfed823e
BK		 7188/**
7189 * ipr_reset_cmd_failed - Handle failure of IOA reset command
7190 * @ipr_cmd: ipr command struct
7191 *
7192 * This function handles the failure of an IOA bringup command.
7193 *
7194 * Return value:
7195 * IPR_RC_JOB_RETURN
7196 **/
7197static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
7198{
7199 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7200 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7201
7202 dev_err(&ioa_cfg->pdev->dev,
7203 "0x%02X failed with IOASC: 0x%08X\n",
7204 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
7205
7206 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
05a6538a 7207 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
dfed823e
BK		 7208 return IPR_RC_JOB_RETURN;
7209}
7210
7211/**
7212 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
7213 * @ipr_cmd: ipr command struct
7214 *
7215 * This function handles the failure of a Mode Sense to the IOAFP.
7216 * Some adapters do not handle all mode pages.
7217 *
7218 * Return value:
7219 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7220 **/
7221static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
7222{
f72919ec 7223 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
96d21f00 7224 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
dfed823e
BK		 7225
7226 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
f72919ec
WB		 7227 ipr_cmd->job_step = ipr_set_supported_devs;
7228 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
7229 struct ipr_resource_entry, queue);
dfed823e
BK		 7230 return IPR_RC_JOB_CONTINUE;
7231 }
7232
7233 return ipr_reset_cmd_failed(ipr_cmd);
7234}
7235
1da177e4
LT		 7236/**
7237 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
7238 * @ipr_cmd: ipr command struct
7239 *
7240 * This function send a Page 28 mode sense to the IOA to
7241 * retrieve SCSI bus attributes.
7242 *
7243 * Return value:
7244 * IPR_RC_JOB_RETURN
7245 **/
7246static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
7247{
7248 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7249
7250 ENTER;
7251 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7252 0x28, ioa_cfg->vpd_cbs_dma +
7253 offsetof(struct ipr_misc_cbs, mode_pages),
7254 sizeof(struct ipr_mode_pages));
7255
7256 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
dfed823e 7257 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
1da177e4
LT		 7258
7259 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7260
7261 LEAVE;
7262 return IPR_RC_JOB_RETURN;
7263}
7264
ac09c349
BK		 7265/**
7266 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
7267 * @ipr_cmd: ipr command struct
7268 *
7269 * This function enables dual IOA RAID support if possible.
7270 *
7271 * Return value:
7272 * IPR_RC_JOB_RETURN
7273 **/
7274static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
7275{
7276 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7277 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
7278 struct ipr_mode_page24 *mode_page;
7279 int length;
7280
7281 ENTER;
7282 mode_page = ipr_get_mode_page(mode_pages, 0x24,
7283 sizeof(struct ipr_mode_page24));
7284
7285 if (mode_page)
7286 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
7287
7288 length = mode_pages->hdr.length + 1;
7289 mode_pages->hdr.length = 0;
7290
7291 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
7292 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
7293 length);
7294
7295 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7296 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7297
7298 LEAVE;
7299 return IPR_RC_JOB_RETURN;
7300}
7301
7302/**
7303 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
7304 * @ipr_cmd: ipr command struct
7305 *
7306 * This function handles the failure of a Mode Sense to the IOAFP.
7307 * Some adapters do not handle all mode pages.
7308 *
7309 * Return value:
7310 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7311 **/
7312static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
7313{
96d21f00 7314 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
ac09c349
BK		 7315
7316 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
7317 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
7318 return IPR_RC_JOB_CONTINUE;
7319 }
7320
7321 return ipr_reset_cmd_failed(ipr_cmd);
7322}
7323
7324/**
7325 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
7326 * @ipr_cmd: ipr command struct
7327 *
7328 * This function send a mode sense to the IOA to retrieve
7329 * the IOA Advanced Function Control mode page.
7330 *
7331 * Return value:
7332 * IPR_RC_JOB_RETURN
7333 **/
7334static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
7335{
7336 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7337
7338 ENTER;
7339 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
7340 0x24, ioa_cfg->vpd_cbs_dma +
7341 offsetof(struct ipr_misc_cbs, mode_pages),
7342 sizeof(struct ipr_mode_pages));
7343
7344 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
7345 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
7346
7347 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7348
7349 LEAVE;
7350 return IPR_RC_JOB_RETURN;
7351}
7352
1da177e4
LT		 7353/**
7354 * ipr_init_res_table - Initialize the resource table
7355 * @ipr_cmd: ipr command struct
7356 *
7357 * This function looks through the existing resource table, comparing
7358 * it with the config table. This function will take care of old/new
7359 * devices and schedule adding/removing them from the mid-layer
7360 * as appropriate.
7361 *
7362 * Return value:
7363 * IPR_RC_JOB_CONTINUE
7364 **/
7365static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
7366{
7367 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7368 struct ipr_resource_entry *res, *temp;
3e7ebdfa
WB		 7369 struct ipr_config_table_entry_wrapper cfgtew;
7370 int entries, found, flag, i;
1da177e4
LT		 7371 LIST_HEAD(old_res);
7372
7373 ENTER;
3e7ebdfa
WB		 7374 if (ioa_cfg->sis64)
7375 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
7376 else
7377 flag = ioa_cfg->u.cfg_table->hdr.flags;
7378
7379 if (flag & IPR_UCODE_DOWNLOAD_REQ)
1da177e4
LT		 7380 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
7381
7382 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
7383 list_move_tail(&res->queue, &old_res);
7384
3e7ebdfa 7385 if (ioa_cfg->sis64)
438b0331 7386 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
3e7ebdfa
WB		 7387 else
7388 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
7389
7390 for (i = 0; i < entries; i++) {
7391 if (ioa_cfg->sis64)
7392 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
7393 else
7394 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
1da177e4
LT		 7395 found = 0;
7396
7397 list_for_each_entry_safe(res, temp, &old_res, queue) {
3e7ebdfa 7398 if (ipr_is_same_device(res, &cfgtew)) {
1da177e4
LT		 7399 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
7400 found = 1;
7401 break;
7402 }
7403 }
7404
7405 if (!found) {
7406 if (list_empty(&ioa_cfg->free_res_q)) {
7407 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
7408 break;
7409 }
7410
7411 found = 1;
7412 res = list_entry(ioa_cfg->free_res_q.next,
7413 struct ipr_resource_entry, queue);
7414 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
3e7ebdfa 7415 ipr_init_res_entry(res, &cfgtew);
1da177e4 7416 res->add_to_ml = 1;
56115598
WB		 7417 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
7418 res->sdev->allow_restart = 1;
1da177e4
LT		 7419
7420 if (found)
3e7ebdfa 7421 ipr_update_res_entry(res, &cfgtew);
1da177e4
LT		 7422 }
7423
7424 list_for_each_entry_safe(res, temp, &old_res, queue) {
7425 if (res->sdev) {
7426 res->del_from_ml = 1;
3e7ebdfa 7427 res->res_handle = IPR_INVALID_RES_HANDLE;
1da177e4 7428 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
1da177e4
LT		 7429 }
7430 }
7431
3e7ebdfa
WB		 7432 list_for_each_entry_safe(res, temp, &old_res, queue) {
7433 ipr_clear_res_target(res);
7434 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
7435 }
7436
ac09c349
BK		 7437 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7438 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
7439 else
7440 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
1da177e4
LT		 7441
7442 LEAVE;
7443 return IPR_RC_JOB_CONTINUE;
7444}
7445
7446/**
7447 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
7448 * @ipr_cmd: ipr command struct
7449 *
7450 * This function sends a Query IOA Configuration command
7451 * to the adapter to retrieve the IOA configuration table.
7452 *
7453 * Return value:
7454 * IPR_RC_JOB_RETURN
7455 **/
7456static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
7457{
7458 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7459 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4 7460 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
ac09c349 7461 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
1da177e4
LT		 7462
7463 ENTER;
ac09c349
BK		 7464 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7465 ioa_cfg->dual_raid = 1;
1da177e4
LT		 7466 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7467 ucode_vpd->major_release, ucode_vpd->card_type,
7468 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7469 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7470 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7471
7472 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
438b0331 7473 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
3e7ebdfa
WB		 7474 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7475 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
1da177e4 7476
3e7ebdfa 7477 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
a32c055f 7478 IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7479
7480 ipr_cmd->job_step = ipr_init_res_table;
7481
7482 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7483
7484 LEAVE;
7485 return IPR_RC_JOB_RETURN;
7486}
7487
7488/**
7489 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7490 * @ipr_cmd: ipr command struct
7491 *
7492 * This utility function sends an inquiry to the adapter.
7493 *
7494 * Return value:
7495 * none
7496 **/
7497static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
a32c055f 7498 dma_addr_t dma_addr, u8 xfer_len)
1da177e4
LT		 7499{
7500 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
1da177e4
LT		 7501
7502 ENTER;
7503 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7504 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7505
7506 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7507 ioarcb->cmd_pkt.cdb[1] = flags;
7508 ioarcb->cmd_pkt.cdb[2] = page;
7509 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7510
a32c055f 7511 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
1da177e4
LT		 7512
7513 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7514 LEAVE;
7515}
7516
62275040
BK		 7517/**
7518 * ipr_inquiry_page_supported - Is the given inquiry page supported
7519 * @page0: inquiry page 0 buffer
7520 * @page: page code.
7521 *
7522 * This function determines if the specified inquiry page is supported.
7523 *
7524 * Return value:
7525 * 1 if page is supported / 0 if not
7526 **/
7527static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7528{
7529 int i;
7530
7531 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7532 if (page0->page[i] == page)
7533 return 1;
7534
7535 return 0;
7536}
7537
ac09c349
BK		 7538/**
7539 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7540 * @ipr_cmd: ipr command struct
7541 *
7542 * This function sends a Page 0xD0 inquiry to the adapter
7543 * to retrieve adapter capabilities.
7544 *
7545 * Return value:
7546 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7547 **/
7548static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7549{
7550 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7551 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7552 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7553
7554 ENTER;
7555 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7556 memset(cap, 0, sizeof(*cap));
7557
7558 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7559 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7560 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7561 sizeof(struct ipr_inquiry_cap));
7562 return IPR_RC_JOB_RETURN;
7563 }
7564
7565 LEAVE;
7566 return IPR_RC_JOB_CONTINUE;
7567}
7568
1da177e4
LT		 7569/**
7570 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7571 * @ipr_cmd: ipr command struct
7572 *
7573 * This function sends a Page 3 inquiry to the adapter
7574 * to retrieve software VPD information.
7575 *
7576 * Return value:
7577 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7578 **/
7579static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
62275040
BK		 7580{
7581 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
62275040
BK		 7582
7583 ENTER;
7584
ac09c349 7585 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
62275040
BK		 7586
7587 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7588 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7589 sizeof(struct ipr_inquiry_page3));
7590
7591 LEAVE;
7592 return IPR_RC_JOB_RETURN;
7593}
7594
7595/**
7596 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7597 * @ipr_cmd: ipr command struct
7598 *
7599 * This function sends a Page 0 inquiry to the adapter
7600 * to retrieve supported inquiry pages.
7601 *
7602 * Return value:
7603 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7604 **/
7605static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7606{
7607 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7608 char type[5];
7609
7610 ENTER;
7611
7612 /* Grab the type out of the VPD and store it away */
7613 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7614 type[4] = '\0';
7615 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7616
62275040 7617 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
1da177e4 7618
62275040
BK		 7619 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7620 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7621 sizeof(struct ipr_inquiry_page0));
1da177e4
LT		 7622
7623 LEAVE;
7624 return IPR_RC_JOB_RETURN;
7625}
7626
7627/**
7628 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7629 * @ipr_cmd: ipr command struct
7630 *
7631 * This function sends a standard inquiry to the adapter.
7632 *
7633 * Return value:
7634 * IPR_RC_JOB_RETURN
7635 **/
7636static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7637{
7638 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7639
7640 ENTER;
62275040 7641 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
1da177e4
LT		 7642
7643 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7644 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7645 sizeof(struct ipr_ioa_vpd));
7646
7647 LEAVE;
7648 return IPR_RC_JOB_RETURN;
7649}
7650
7651/**
214777ba 7652 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
1da177e4
LT		 7653 * @ipr_cmd: ipr command struct
7654 *
7655 * This function send an Identify Host Request Response Queue
7656 * command to establish the HRRQ with the adapter.
7657 *
7658 * Return value:
7659 * IPR_RC_JOB_RETURN
7660 **/
214777ba 7661static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
1da177e4
LT		 7662{
7663 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7664 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
05a6538a 7665 struct ipr_hrr_queue *hrrq;
1da177e4
LT		 7666
7667 ENTER;
05a6538a 7668 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
1da177e4
LT		 7669 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7670
56d6aa33 7671 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) {
7672 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index];
1da177e4 7673
05a6538a 7674 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7675 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
1da177e4 7676
05a6538a 7677 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7678 if (ioa_cfg->sis64)
7679 ioarcb->cmd_pkt.cdb[1] = 0x1;
214777ba 7680
05a6538a 7681 if (ioa_cfg->nvectors == 1)
7682 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE;
7683 else
7684 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE;
7685
7686 ioarcb->cmd_pkt.cdb[2] =
7687 ((u64) hrrq->host_rrq_dma >> 24) & 0xff;
7688 ioarcb->cmd_pkt.cdb[3] =
7689 ((u64) hrrq->host_rrq_dma >> 16) & 0xff;
7690 ioarcb->cmd_pkt.cdb[4] =
7691 ((u64) hrrq->host_rrq_dma >> 8) & 0xff;
7692 ioarcb->cmd_pkt.cdb[5] =
7693 ((u64) hrrq->host_rrq_dma) & 0xff;
7694 ioarcb->cmd_pkt.cdb[7] =
7695 ((sizeof(u32) * hrrq->size) >> 8) & 0xff;
7696 ioarcb->cmd_pkt.cdb[8] =
7697 (sizeof(u32) * hrrq->size) & 0xff;
7698
7699 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7700 ioarcb->cmd_pkt.cdb[9] =
7701 ioa_cfg->identify_hrrq_index;
1da177e4 7702
05a6538a 7703 if (ioa_cfg->sis64) {
7704 ioarcb->cmd_pkt.cdb[10] =
7705 ((u64) hrrq->host_rrq_dma >> 56) & 0xff;
7706 ioarcb->cmd_pkt.cdb[11] =
7707 ((u64) hrrq->host_rrq_dma >> 48) & 0xff;
7708 ioarcb->cmd_pkt.cdb[12] =
7709 ((u64) hrrq->host_rrq_dma >> 40) & 0xff;
7710 ioarcb->cmd_pkt.cdb[13] =
7711 ((u64) hrrq->host_rrq_dma >> 32) & 0xff;
7712 }
7713
7714 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE)
56d6aa33 7715 ioarcb->cmd_pkt.cdb[14] =
7716 ioa_cfg->identify_hrrq_index;
05a6538a 7717
7718 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7719 IPR_INTERNAL_TIMEOUT);
7720
56d6aa33 7721 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num)
7722 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
05a6538a 7723
7724 LEAVE;
7725 return IPR_RC_JOB_RETURN;
05a6538a 7726 }
7727
1da177e4 7728 LEAVE;
05a6538a 7729 return IPR_RC_JOB_CONTINUE;
1da177e4
LT		 7730}
7731
7732/**
7733 * ipr_reset_timer_done - Adapter reset timer function
7734 * @ipr_cmd: ipr command struct
7735 *
7736 * Description: This function is used in adapter reset processing
7737 * for timing events. If the reset_cmd pointer in the IOA
7738 * config struct is not this adapter's we are doing nested
7739 * resets and fail_all_ops will take care of freeing the
7740 * command block.
7741 *
7742 * Return value:
7743 * none
7744 **/
7745static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7746{
7747 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7748 unsigned long lock_flags = 0;
7749
7750 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7751
7752 if (ioa_cfg->reset_cmd == ipr_cmd) {
7753 list_del(&ipr_cmd->queue);
7754 ipr_cmd->done(ipr_cmd);
7755 }
7756
7757 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7758}
7759
7760/**
7761 * ipr_reset_start_timer - Start a timer for adapter reset job
7762 * @ipr_cmd: ipr command struct
7763 * @timeout: timeout value
7764 *
7765 * Description: This function is used in adapter reset processing
7766 * for timing events. If the reset_cmd pointer in the IOA
7767 * config struct is not this adapter's we are doing nested
7768 * resets and fail_all_ops will take care of freeing the
7769 * command block.
7770 *
7771 * Return value:
7772 * none
7773 **/
7774static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7775 unsigned long timeout)
7776{
05a6538a 7777
7778 ENTER;
7779 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7780 ipr_cmd->done = ipr_reset_ioa_job;
7781
7782 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7783 ipr_cmd->timer.expires = jiffies + timeout;
7784 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7785 add_timer(&ipr_cmd->timer);
7786}
7787
7788/**
7789 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7790 * @ioa_cfg: ioa cfg struct
7791 *
7792 * Return value:
7793 * nothing
7794 **/
7795static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7796{
05a6538a 7797 struct ipr_hrr_queue *hrrq;
1da177e4 7798
05a6538a 7799 for_each_hrrq(hrrq, ioa_cfg) {
56d6aa33 7800 spin_lock(&hrrq->_lock);
05a6538a 7801 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size);
7802
7803 /* Initialize Host RRQ pointers */
7804 hrrq->hrrq_start = hrrq->host_rrq;
7805 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1];
7806 hrrq->hrrq_curr = hrrq->hrrq_start;
7807 hrrq->toggle_bit = 1;
56d6aa33 7808 spin_unlock(&hrrq->_lock);
05a6538a 7809 }
56d6aa33 7810 wmb();
05a6538a 7811
56d6aa33 7812 ioa_cfg->identify_hrrq_index = 0;
7813 if (ioa_cfg->hrrq_num == 1)
7814 atomic_set(&ioa_cfg->hrrq_index, 0);
7815 else
7816 atomic_set(&ioa_cfg->hrrq_index, 1);
1da177e4
LT		 7817
7818 /* Zero out config table */
3e7ebdfa 7819 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
1da177e4
LT		 7820}
7821
214777ba
WB		 7822/**
7823 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7824 * @ipr_cmd: ipr command struct
7825 *
7826 * Return value:
7827 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7828 **/
7829static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7830{
7831 unsigned long stage, stage_time;
7832 u32 feedback;
7833 volatile u32 int_reg;
7834 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7835 u64 maskval = 0;
7836
7837 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7838 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7839 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7840
7841 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7842
7843 /* sanity check the stage_time value */
438b0331
WB		 7844 if (stage_time == 0)
7845 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7846 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
214777ba
WB		 7847 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7848 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7849 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7850
7851 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7852 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7853 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7854 stage_time = ioa_cfg->transop_timeout;
7855 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7856 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
1df79ca4
WB		 7857 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7858 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7859 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7860 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7861 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7862 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7863 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7864 return IPR_RC_JOB_CONTINUE;
7865 }
214777ba
WB		 7866 }
7867
7868 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7869 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7870 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7871 ipr_cmd->done = ipr_reset_ioa_job;
7872 add_timer(&ipr_cmd->timer);
05a6538a 7873
7874 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
214777ba
WB		 7875
7876 return IPR_RC_JOB_RETURN;
7877}
7878
1da177e4
LT		 7879/**
7880 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7881 * @ipr_cmd: ipr command struct
7882 *
7883 * This function reinitializes some control blocks and
7884 * enables destructive diagnostics on the adapter.
7885 *
7886 * Return value:
7887 * IPR_RC_JOB_RETURN
7888 **/
7889static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7890{
7891 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7892 volatile u32 int_reg;
7be96900 7893 volatile u64 maskval;
56d6aa33 7894 int i;
1da177e4
LT		 7895
7896 ENTER;
214777ba 7897 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
1da177e4
LT		 7898 ipr_init_ioa_mem(ioa_cfg);
7899
56d6aa33 7900 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
7901 spin_lock(&ioa_cfg->hrrq[i]._lock);
7902 ioa_cfg->hrrq[i].allow_interrupts = 1;
7903 spin_unlock(&ioa_cfg->hrrq[i]._lock);
7904 }
7905 wmb();
8701f185
WB		 7906 if (ioa_cfg->sis64) {
7907 /* Set the adapter to the correct endian mode. */
7908 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7909 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7910 }
7911
7be96900 7912 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
1da177e4
LT		 7913
7914 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7915 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
214777ba 7916 ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4
LT		 7917 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7918 return IPR_RC_JOB_CONTINUE;
7919 }
7920
7921 /* Enable destructive diagnostics on IOA */
214777ba
WB		 7922 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7923
7be96900
WB		 7924 if (ioa_cfg->sis64) {
7925 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7926 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7927 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7928 } else
7929 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
1da177e4 7930
1da177e4
LT		 7931 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7932
7933 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7934
214777ba
WB		 7935 if (ioa_cfg->sis64) {
7936 ipr_cmd->job_step = ipr_reset_next_stage;
7937 return IPR_RC_JOB_CONTINUE;
7938 }
7939
1da177e4 7940 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
5469cb5b 7941 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
1da177e4
LT		 7942 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7943 ipr_cmd->done = ipr_reset_ioa_job;
7944 add_timer(&ipr_cmd->timer);
05a6538a 7945 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
1da177e4
LT		 7946
7947 LEAVE;
7948 return IPR_RC_JOB_RETURN;
7949}
7950
7951/**
7952 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7953 * @ipr_cmd: ipr command struct
7954 *
7955 * This function is invoked when an adapter dump has run out
7956 * of processing time.
7957 *
7958 * Return value:
7959 * IPR_RC_JOB_CONTINUE
7960 **/
7961static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7962{
7963 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7964
7965 if (ioa_cfg->sdt_state == GET_DUMP)
41e9a696
BK		 7966 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7967 else if (ioa_cfg->sdt_state == READ_DUMP)
1da177e4
LT		 7968 ioa_cfg->sdt_state = ABORT_DUMP;
7969
4c647e90 7970 ioa_cfg->dump_timeout = 1;
1da177e4
LT		 7971 ipr_cmd->job_step = ipr_reset_alert;
7972
7973 return IPR_RC_JOB_CONTINUE;
7974}
7975
7976/**
7977 * ipr_unit_check_no_data - Log a unit check/no data error log
7978 * @ioa_cfg: ioa config struct
7979 *
7980 * Logs an error indicating the adapter unit checked, but for some
7981 * reason, we were unable to fetch the unit check buffer.
7982 *
7983 * Return value:
7984 * nothing
7985 **/
7986static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7987{
7988 ioa_cfg->errors_logged++;
7989 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7990}
7991
7992/**
7993 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7994 * @ioa_cfg: ioa config struct
7995 *
7996 * Fetches the unit check buffer from the adapter by clocking the data
7997 * through the mailbox register.
7998 *
7999 * Return value:
8000 * nothing
8001 **/
8002static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
8003{
8004 unsigned long mailbox;
8005 struct ipr_hostrcb *hostrcb;
8006 struct ipr_uc_sdt sdt;
8007 int rc, length;
65f56475 8008 u32 ioasc;
1da177e4
LT		 8009
8010 mailbox = readl(ioa_cfg->ioa_mailbox);
8011
dcbad00e 8012 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
1da177e4
LT		 8013 ipr_unit_check_no_data(ioa_cfg);
8014 return;
8015 }
8016
8017 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
8018 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
8019 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
8020
dcbad00e
WB		 8021 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
8022 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
8023 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
1da177e4
LT		 8024 ipr_unit_check_no_data(ioa_cfg);
8025 return;
8026 }
8027
8028 /* Find length of the first sdt entry (UC buffer) */
dcbad00e
WB		 8029 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
8030 length = be32_to_cpu(sdt.entry[0].end_token);
8031 else
8032 length = (be32_to_cpu(sdt.entry[0].end_token) -
8033 be32_to_cpu(sdt.entry[0].start_token)) &
8034 IPR_FMT2_MBX_ADDR_MASK;
1da177e4
LT		 8035
8036 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
8037 struct ipr_hostrcb, queue);
8038 list_del(&hostrcb->queue);
8039 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
8040
8041 rc = ipr_get_ldump_data_section(ioa_cfg,
dcbad00e 8042 be32_to_cpu(sdt.entry[0].start_token),
1da177e4
LT		 8043 (__be32 *)&hostrcb->hcam,
8044 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
8045
65f56475 8046 if (!rc) {
1da177e4 8047 ipr_handle_log_data(ioa_cfg, hostrcb);
4565e370 8048 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
65f56475
BK		 8049 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
8050 ioa_cfg->sdt_state == GET_DUMP)
8051 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8052 } else
1da177e4
LT		 8053 ipr_unit_check_no_data(ioa_cfg);
8054
8055 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
8056}
8057
110def85
WB		 8058/**
8059 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
8060 * @ipr_cmd: ipr command struct
8061 *
8062 * Description: This function will call to get the unit check buffer.
8063 *
8064 * Return value:
8065 * IPR_RC_JOB_RETURN
8066 **/
8067static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
8068{
8069 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8070
8071 ENTER;
8072 ioa_cfg->ioa_unit_checked = 0;
8073 ipr_get_unit_check_buffer(ioa_cfg);
8074 ipr_cmd->job_step = ipr_reset_alert;
8075 ipr_reset_start_timer(ipr_cmd, 0);
8076
8077 LEAVE;
8078 return IPR_RC_JOB_RETURN;
8079}
8080
1da177e4
LT		 8081/**
8082 * ipr_reset_restore_cfg_space - Restore PCI config space.
8083 * @ipr_cmd: ipr command struct
8084 *
8085 * Description: This function restores the saved PCI config space of
8086 * the adapter, fails all outstanding ops back to the callers, and
8087 * fetches the dump/unit check if applicable to this reset.
8088 *
8089 * Return value:
8090 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8091 **/
8092static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
8093{
8094 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
630ad831 8095 u32 int_reg;
1da177e4
LT		 8096
8097 ENTER;
99c965dd 8098 ioa_cfg->pdev->state_saved = true;
1d3c16a8 8099 pci_restore_state(ioa_cfg->pdev);
1da177e4
LT		 8100
8101 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
96d21f00 8102 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
1da177e4
LT		 8103 return IPR_RC_JOB_CONTINUE;
8104 }
8105
8106 ipr_fail_all_ops(ioa_cfg);
8107
8701f185
WB		 8108 if (ioa_cfg->sis64) {
8109 /* Set the adapter to the correct endian mode. */
8110 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
8111 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
8112 }
8113
1da177e4 8114 if (ioa_cfg->ioa_unit_checked) {
110def85
WB		 8115 if (ioa_cfg->sis64) {
8116 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
8117 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
8118 return IPR_RC_JOB_RETURN;
8119 } else {
8120 ioa_cfg->ioa_unit_checked = 0;
8121 ipr_get_unit_check_buffer(ioa_cfg);
8122 ipr_cmd->job_step = ipr_reset_alert;
8123 ipr_reset_start_timer(ipr_cmd, 0);
8124 return IPR_RC_JOB_RETURN;
8125 }
1da177e4
LT		 8126 }
8127
8128 if (ioa_cfg->in_ioa_bringdown) {
8129 ipr_cmd->job_step = ipr_ioa_bringdown_done;
8130 } else {
8131 ipr_cmd->job_step = ipr_reset_enable_ioa;
8132
8133 if (GET_DUMP == ioa_cfg->sdt_state) {
41e9a696 8134 ioa_cfg->sdt_state = READ_DUMP;
4c647e90 8135 ioa_cfg->dump_timeout = 0;
4d4dd706
KSS		 8136 if (ioa_cfg->sis64)
8137 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
8138 else
8139 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
1da177e4
LT		 8140 ipr_cmd->job_step = ipr_reset_wait_for_dump;
8141 schedule_work(&ioa_cfg->work_q);
8142 return IPR_RC_JOB_RETURN;
8143 }
8144 }
8145
438b0331 8146 LEAVE;
1da177e4
LT		 8147 return IPR_RC_JOB_CONTINUE;
8148}
8149
e619e1a7
BK		 8150/**
8151 * ipr_reset_bist_done - BIST has completed on the adapter.
8152 * @ipr_cmd: ipr command struct
8153 *
8154 * Description: Unblock config space and resume the reset process.
8155 *
8156 * Return value:
8157 * IPR_RC_JOB_CONTINUE
8158 **/
8159static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
8160{
fb51ccbf
JK		 8161 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8162
e619e1a7 8163 ENTER;
fb51ccbf
JK		 8164 if (ioa_cfg->cfg_locked)
8165 pci_cfg_access_unlock(ioa_cfg->pdev);
8166 ioa_cfg->cfg_locked = 0;
e619e1a7
BK		 8167 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
8168 LEAVE;
8169 return IPR_RC_JOB_CONTINUE;
8170}
8171
1da177e4
LT		 8172/**
8173 * ipr_reset_start_bist - Run BIST on the adapter.
8174 * @ipr_cmd: ipr command struct
8175 *
8176 * Description: This function runs BIST on the adapter, then delays 2 seconds.
8177 *
8178 * Return value:
8179 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8180 **/
8181static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
8182{
8183 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
cb237ef7 8184 int rc = PCIBIOS_SUCCESSFUL;
1da177e4
LT		 8185
8186 ENTER;
cb237ef7
WB		 8187 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
8188 writel(IPR_UPROCI_SIS64_START_BIST,
8189 ioa_cfg->regs.set_uproc_interrupt_reg32);
8190 else
8191 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
8192
8193 if (rc == PCIBIOS_SUCCESSFUL) {
e619e1a7 8194 ipr_cmd->job_step = ipr_reset_bist_done;
1da177e4
LT		 8195 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8196 rc = IPR_RC_JOB_RETURN;
cb237ef7 8197 } else {
fb51ccbf
JK		 8198 if (ioa_cfg->cfg_locked)
8199 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
8200 ioa_cfg->cfg_locked = 0;
cb237ef7
WB		 8201 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
8202 rc = IPR_RC_JOB_CONTINUE;
1da177e4
LT		 8203 }
8204
8205 LEAVE;
8206 return rc;
8207}
8208
463fc696
BK		 8209/**
8210 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
8211 * @ipr_cmd: ipr command struct
8212 *
8213 * Description: This clears PCI reset to the adapter and delays two seconds.
8214 *
8215 * Return value:
8216 * IPR_RC_JOB_RETURN
8217 **/
8218static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
8219{
8220 ENTER;
8221 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
8222 ipr_cmd->job_step = ipr_reset_bist_done;
8223 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
8224 LEAVE;
8225 return IPR_RC_JOB_RETURN;
8226}
8227
8228/**
8229 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
8230 * @ipr_cmd: ipr command struct
8231 *
8232 * Description: This asserts PCI reset to the adapter.
8233 *
8234 * Return value:
8235 * IPR_RC_JOB_RETURN
8236 **/
8237static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
8238{
8239 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8240 struct pci_dev *pdev = ioa_cfg->pdev;
8241
8242 ENTER;
463fc696
BK		 8243 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
8244 ipr_cmd->job_step = ipr_reset_slot_reset_done;
8245 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
8246 LEAVE;
8247 return IPR_RC_JOB_RETURN;
8248}
8249
fb51ccbf
JK		 8250/**
8251 * ipr_reset_block_config_access_wait - Wait for permission to block config access
8252 * @ipr_cmd: ipr command struct
8253 *
8254 * Description: This attempts to block config access to the IOA.
8255 *
8256 * Return value:
8257 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8258 **/
8259static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
8260{
8261 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8262 int rc = IPR_RC_JOB_CONTINUE;
8263
8264 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
8265 ioa_cfg->cfg_locked = 1;
8266 ipr_cmd->job_step = ioa_cfg->reset;
8267 } else {
8268 if (ipr_cmd->u.time_left) {
8269 rc = IPR_RC_JOB_RETURN;
8270 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8271 ipr_reset_start_timer(ipr_cmd,
8272 IPR_CHECK_FOR_RESET_TIMEOUT);
8273 } else {
8274 ipr_cmd->job_step = ioa_cfg->reset;
8275 dev_err(&ioa_cfg->pdev->dev,
8276 "Timed out waiting to lock config access. Resetting anyway.\n");
8277 }
8278 }
8279
8280 return rc;
8281}
8282
8283/**
8284 * ipr_reset_block_config_access - Block config access to the IOA
8285 * @ipr_cmd: ipr command struct
8286 *
8287 * Description: This attempts to block config access to the IOA
8288 *
8289 * Return value:
8290 * IPR_RC_JOB_CONTINUE
8291 **/
8292static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
8293{
8294 ipr_cmd->ioa_cfg->cfg_locked = 0;
8295 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
8296 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8297 return IPR_RC_JOB_CONTINUE;
8298}
8299
1da177e4
LT		 8300/**
8301 * ipr_reset_allowed - Query whether or not IOA can be reset
8302 * @ioa_cfg: ioa config struct
8303 *
8304 * Return value:
8305 * 0 if reset not allowed / non-zero if reset is allowed
8306 **/
8307static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
8308{
8309 volatile u32 temp_reg;
8310
8311 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8312 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
8313}
8314
8315/**
8316 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
8317 * @ipr_cmd: ipr command struct
8318 *
8319 * Description: This function waits for adapter permission to run BIST,
8320 * then runs BIST. If the adapter does not give permission after a
8321 * reasonable time, we will reset the adapter anyway. The impact of
8322 * resetting the adapter without warning the adapter is the risk of
8323 * losing the persistent error log on the adapter. If the adapter is
8324 * reset while it is writing to the flash on the adapter, the flash
8325 * segment will have bad ECC and be zeroed.
8326 *
8327 * Return value:
8328 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8329 **/
8330static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
8331{
8332 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8333 int rc = IPR_RC_JOB_RETURN;
8334
8335 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
8336 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
8337 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8338 } else {
fb51ccbf 8339 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8340 rc = IPR_RC_JOB_CONTINUE;
8341 }
8342
8343 return rc;
8344}
8345
8346/**
8701f185 8347 * ipr_reset_alert - Alert the adapter of a pending reset
1da177e4
LT		 8348 * @ipr_cmd: ipr command struct
8349 *
8350 * Description: This function alerts the adapter that it will be reset.
8351 * If memory space is not currently enabled, proceed directly
8352 * to running BIST on the adapter. The timer must always be started
8353 * so we guarantee we do not run BIST from ipr_isr.
8354 *
8355 * Return value:
8356 * IPR_RC_JOB_RETURN
8357 **/
8358static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
8359{
8360 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8361 u16 cmd_reg;
8362 int rc;
8363
8364 ENTER;
8365 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
8366
8367 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
8368 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
214777ba 8369 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
1da177e4
LT		 8370 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
8371 } else {
fb51ccbf 8372 ipr_cmd->job_step = ipr_reset_block_config_access;
1da177e4
LT		 8373 }
8374
8375 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
8376 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
8377
8378 LEAVE;
8379 return IPR_RC_JOB_RETURN;
8380}
8381
8382/**
8383 * ipr_reset_ucode_download_done - Microcode download completion
8384 * @ipr_cmd: ipr command struct
8385 *
8386 * Description: This function unmaps the microcode download buffer.
8387 *
8388 * Return value:
8389 * IPR_RC_JOB_CONTINUE
8390 **/
8391static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
8392{
8393 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8394 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8395
d73341bf 8396 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist,
1da177e4
LT		 8397 sglist->num_sg, DMA_TO_DEVICE);
8398
8399 ipr_cmd->job_step = ipr_reset_alert;
8400 return IPR_RC_JOB_CONTINUE;
8401}
8402
8403/**
8404 * ipr_reset_ucode_download - Download microcode to the adapter
8405 * @ipr_cmd: ipr command struct
8406 *
8407 * Description: This function checks to see if it there is microcode
8408 * to download to the adapter. If there is, a download is performed.
8409 *
8410 * Return value:
8411 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8412 **/
8413static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
8414{
8415 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8416 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
8417
8418 ENTER;
8419 ipr_cmd->job_step = ipr_reset_alert;
8420
8421 if (!sglist)
8422 return IPR_RC_JOB_CONTINUE;
8423
8424 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8425 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
8426 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
8427 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
8428 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
8429 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
8430 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
8431
a32c055f
WB		 8432 if (ioa_cfg->sis64)
8433 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
8434 else
8435 ipr_build_ucode_ioadl(ipr_cmd, sglist);
1da177e4
LT		 8436 ipr_cmd->job_step = ipr_reset_ucode_download_done;
8437
8438 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
8439 IPR_WRITE_BUFFER_TIMEOUT);
8440
8441 LEAVE;
8442 return IPR_RC_JOB_RETURN;
8443}
8444
8445/**
8446 * ipr_reset_shutdown_ioa - Shutdown the adapter
8447 * @ipr_cmd: ipr command struct
8448 *
8449 * Description: This function issues an adapter shutdown of the
8450 * specified type to the specified adapter as part of the
8451 * adapter reset job.
8452 *
8453 * Return value:
8454 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
8455 **/
8456static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
8457{
8458 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8459 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
8460 unsigned long timeout;
8461 int rc = IPR_RC_JOB_CONTINUE;
8462
8463 ENTER;
56d6aa33 8464 if (shutdown_type != IPR_SHUTDOWN_NONE &&
8465 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8466 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8467 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8468 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8469 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
8470
ac09c349
BK		 8471 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
8472 timeout = IPR_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8473 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
8474 timeout = IPR_INTERNAL_TIMEOUT;
ac09c349
BK		 8475 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
8476 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
1da177e4 8477 else
ac09c349 8478 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
1da177e4
LT		 8479
8480 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
8481
8482 rc = IPR_RC_JOB_RETURN;
8483 ipr_cmd->job_step = ipr_reset_ucode_download;
8484 } else
8485 ipr_cmd->job_step = ipr_reset_alert;
8486
8487 LEAVE;
8488 return rc;
8489}
8490
8491/**
8492 * ipr_reset_ioa_job - Adapter reset job
8493 * @ipr_cmd: ipr command struct
8494 *
8495 * Description: This function is the job router for the adapter reset job.
8496 *
8497 * Return value:
8498 * none
8499 **/
8500static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
8501{
8502 u32 rc, ioasc;
1da177e4
LT		 8503 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8504
8505 do {
96d21f00 8506 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1da177e4
LT		 8507
8508 if (ioa_cfg->reset_cmd != ipr_cmd) {
8509 /*
8510 * We are doing nested adapter resets and this is
8511 * not the current reset job.
8512 */
05a6538a 8513 list_add_tail(&ipr_cmd->queue,
8514 &ipr_cmd->hrrq->hrrq_free_q);
1da177e4
LT		 8515 return;
8516 }
8517
8518 if (IPR_IOASC_SENSE_KEY(ioasc)) {
dfed823e
BK		 8519 rc = ipr_cmd->job_step_failed(ipr_cmd);
8520 if (rc == IPR_RC_JOB_RETURN)
8521 return;
1da177e4
LT		 8522 }
8523
8524 ipr_reinit_ipr_cmnd(ipr_cmd);
dfed823e 8525 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
1da177e4 8526 rc = ipr_cmd->job_step(ipr_cmd);
203fa3fe 8527 } while (rc == IPR_RC_JOB_CONTINUE);
1da177e4
LT		 8528}
8529
8530/**
8531 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8532 * @ioa_cfg: ioa config struct
8533 * @job_step: first job step of reset job
8534 * @shutdown_type: shutdown type
8535 *
8536 * Description: This function will initiate the reset of the given adapter
8537 * starting at the selected job step.
8538 * If the caller needs to wait on the completion of the reset,
8539 * the caller must sleep on the reset_wait_q.
8540 *
8541 * Return value:
8542 * none
8543 **/
8544static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8545 int (*job_step) (struct ipr_cmnd *),
8546 enum ipr_shutdown_type shutdown_type)
8547{
8548 struct ipr_cmnd *ipr_cmd;
56d6aa33 8549 int i;
1da177e4
LT		 8550
8551 ioa_cfg->in_reset_reload = 1;
56d6aa33 8552 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8553 spin_lock(&ioa_cfg->hrrq[i]._lock);
8554 ioa_cfg->hrrq[i].allow_cmds = 0;
8555 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8556 }
8557 wmb();
bfae7820
BK		 8558 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa)
8559 scsi_block_requests(ioa_cfg->host);
1da177e4
LT		 8560
8561 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8562 ioa_cfg->reset_cmd = ipr_cmd;
8563 ipr_cmd->job_step = job_step;
8564 ipr_cmd->u.shutdown_type = shutdown_type;
8565
8566 ipr_reset_ioa_job(ipr_cmd);
8567}
8568
8569/**
8570 * ipr_initiate_ioa_reset - Initiate an adapter reset
8571 * @ioa_cfg: ioa config struct
8572 * @shutdown_type: shutdown type
8573 *
8574 * Description: This function will initiate the reset of the given adapter.
8575 * If the caller needs to wait on the completion of the reset,
8576 * the caller must sleep on the reset_wait_q.
8577 *
8578 * Return value:
8579 * none
8580 **/
8581static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8582 enum ipr_shutdown_type shutdown_type)
8583{
56d6aa33 8584 int i;
8585
8586 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead)
1da177e4
LT		 8587 return;
8588
41e9a696
BK		 8589 if (ioa_cfg->in_reset_reload) {
8590 if (ioa_cfg->sdt_state == GET_DUMP)
8591 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8592 else if (ioa_cfg->sdt_state == READ_DUMP)
8593 ioa_cfg->sdt_state = ABORT_DUMP;
8594 }
1da177e4
LT		 8595
8596 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8597 dev_err(&ioa_cfg->pdev->dev,
8598 "IOA taken offline - error recovery failed\n");
8599
8600 ioa_cfg->reset_retries = 0;
56d6aa33 8601 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8602 spin_lock(&ioa_cfg->hrrq[i]._lock);
8603 ioa_cfg->hrrq[i].ioa_is_dead = 1;
8604 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8605 }
8606 wmb();
1da177e4
LT		 8607
8608 if (ioa_cfg->in_ioa_bringdown) {
8609 ioa_cfg->reset_cmd = NULL;
8610 ioa_cfg->in_reset_reload = 0;
8611 ipr_fail_all_ops(ioa_cfg);
8612 wake_up_all(&ioa_cfg->reset_wait_q);
8613
bfae7820
BK		 8614 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) {
8615 spin_unlock_irq(ioa_cfg->host->host_lock);
8616 scsi_unblock_requests(ioa_cfg->host);
8617 spin_lock_irq(ioa_cfg->host->host_lock);
8618 }
1da177e4
LT		 8619 return;
8620 } else {
8621 ioa_cfg->in_ioa_bringdown = 1;
8622 shutdown_type = IPR_SHUTDOWN_NONE;
8623 }
8624 }
8625
8626 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8627 shutdown_type);
8628}
8629
f8a88b19
LV		 8630/**
8631 * ipr_reset_freeze - Hold off all I/O activity
8632 * @ipr_cmd: ipr command struct
8633 *
8634 * Description: If the PCI slot is frozen, hold off all I/O
8635 * activity; then, as soon as the slot is available again,
8636 * initiate an adapter reset.
8637 */
8638static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8639{
56d6aa33 8640 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8641 int i;
8642
f8a88b19 8643 /* Disallow new interrupts, avoid loop */
56d6aa33 8644 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8645 spin_lock(&ioa_cfg->hrrq[i]._lock);
8646 ioa_cfg->hrrq[i].allow_interrupts = 0;
8647 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8648 }
8649 wmb();
05a6538a 8650 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
f8a88b19
LV		 8651 ipr_cmd->done = ipr_reset_ioa_job;
8652 return IPR_RC_JOB_RETURN;
8653}
8654
6270e593
BK		 8655/**
8656 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled
8657 * @pdev: PCI device struct
8658 *
8659 * Description: This routine is called to tell us that the MMIO
8660 * access to the IOA has been restored
8661 */
8662static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev)
8663{
8664 unsigned long flags = 0;
8665 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8666
8667 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8668 if (!ioa_cfg->probe_done)
8669 pci_save_state(pdev);
8670 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8671 return PCI_ERS_RESULT_NEED_RESET;
8672}
8673
f8a88b19
LV		 8674/**
8675 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8676 * @pdev: PCI device struct
8677 *
8678 * Description: This routine is called to tell us that the PCI bus
8679 * is down. Can't do anything here, except put the device driver
8680 * into a holding pattern, waiting for the PCI bus to come back.
8681 */
8682static void ipr_pci_frozen(struct pci_dev *pdev)
8683{
8684 unsigned long flags = 0;
8685 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8686
8687 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8688 if (ioa_cfg->probe_done)
8689 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
f8a88b19
LV		 8690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8691}
8692
8693/**
8694 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8695 * @pdev: PCI device struct
8696 *
8697 * Description: This routine is called by the pci error recovery
8698 * code after the PCI slot has been reset, just before we
8699 * should resume normal operations.
8700 */
8701static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8702{
8703 unsigned long flags = 0;
8704 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8705
8706 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8707 if (ioa_cfg->probe_done) {
8708 if (ioa_cfg->needs_warm_reset)
8709 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8710 else
8711 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8712 IPR_SHUTDOWN_NONE);
8713 } else
8714 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 8715 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8716 return PCI_ERS_RESULT_RECOVERED;
8717}
8718
8719/**
8720 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8721 * @pdev: PCI device struct
8722 *
8723 * Description: This routine is called when the PCI bus has
8724 * permanently failed.
8725 */
8726static void ipr_pci_perm_failure(struct pci_dev *pdev)
8727{
8728 unsigned long flags = 0;
8729 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
56d6aa33 8730 int i;
f8a88b19
LV		 8731
8732 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6270e593
BK		 8733 if (ioa_cfg->probe_done) {
8734 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8735 ioa_cfg->sdt_state = ABORT_DUMP;
8736 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1;
8737 ioa_cfg->in_ioa_bringdown = 1;
8738 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8739 spin_lock(&ioa_cfg->hrrq[i]._lock);
8740 ioa_cfg->hrrq[i].allow_cmds = 0;
8741 spin_unlock(&ioa_cfg->hrrq[i]._lock);
8742 }
8743 wmb();
8744 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8745 } else
8746 wake_up_all(&ioa_cfg->eeh_wait_q);
f8a88b19
LV		 8747 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8748}
8749
8750/**
8751 * ipr_pci_error_detected - Called when a PCI error is detected.
8752 * @pdev: PCI device struct
8753 * @state: PCI channel state
8754 *
8755 * Description: Called when a PCI error is detected.
8756 *
8757 * Return value:
8758 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8759 */
8760static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8761 pci_channel_state_t state)
8762{
8763 switch (state) {
8764 case pci_channel_io_frozen:
8765 ipr_pci_frozen(pdev);
6270e593 8766 return PCI_ERS_RESULT_CAN_RECOVER;
f8a88b19
LV		 8767 case pci_channel_io_perm_failure:
8768 ipr_pci_perm_failure(pdev);
8769 return PCI_ERS_RESULT_DISCONNECT;
8770 break;
8771 default:
8772 break;
8773 }
8774 return PCI_ERS_RESULT_NEED_RESET;
8775}
8776
1da177e4
LT		 8777/**
8778 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8779 * @ioa_cfg: ioa cfg struct
8780 *
8781 * Description: This is the second phase of adapter intialization
8782 * This function takes care of initilizing the adapter to the point
8783 * where it can accept new commands.
8784
8785 * Return value:
b1c11812 8786 * 0 on success / -EIO on failure
1da177e4 8787 **/
6f039790 8788static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 8789{
8790 int rc = 0;
8791 unsigned long host_lock_flags = 0;
8792
8793 ENTER;
8794 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8795 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
6270e593 8796 ioa_cfg->probe_done = 1;
ce155cce
BK		 8797 if (ioa_cfg->needs_hard_reset) {
8798 ioa_cfg->needs_hard_reset = 0;
8799 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8800 } else
8801 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8802 IPR_SHUTDOWN_NONE);
1da177e4
LT		 8803 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8804 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8805 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8806
56d6aa33 8807 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
1da177e4
LT		 8808 rc = -EIO;
8809 } else if (ipr_invalid_adapter(ioa_cfg)) {
8810 if (!ipr_testmode)
8811 rc = -EIO;
8812
8813 dev_err(&ioa_cfg->pdev->dev,
8814 "Adapter not supported in this hardware configuration.\n");
8815 }
8816
8817 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8818
8819 LEAVE;
8820 return rc;
8821}
8822
8823/**
8824 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8825 * @ioa_cfg: ioa config struct
8826 *
8827 * Return value:
8828 * none
8829 **/
8830static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8831{
8832 int i;
8833
8834 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8835 if (ioa_cfg->ipr_cmnd_list[i])
d73341bf 8836 dma_pool_free(ioa_cfg->ipr_cmd_pool,
1da177e4
LT		 8837 ioa_cfg->ipr_cmnd_list[i],
8838 ioa_cfg->ipr_cmnd_list_dma[i]);
8839
8840 ioa_cfg->ipr_cmnd_list[i] = NULL;
8841 }
8842
8843 if (ioa_cfg->ipr_cmd_pool)
d73341bf 8844 dma_pool_destroy(ioa_cfg->ipr_cmd_pool);
1da177e4 8845
89aad428
BK		 8846 kfree(ioa_cfg->ipr_cmnd_list);
8847 kfree(ioa_cfg->ipr_cmnd_list_dma);
8848 ioa_cfg->ipr_cmnd_list = NULL;
8849 ioa_cfg->ipr_cmnd_list_dma = NULL;
1da177e4
LT		 8850 ioa_cfg->ipr_cmd_pool = NULL;
8851}
8852
8853/**
8854 * ipr_free_mem - Frees memory allocated for an adapter
8855 * @ioa_cfg: ioa cfg struct
8856 *
8857 * Return value:
8858 * nothing
8859 **/
8860static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8861{
8862 int i;
8863
8864 kfree(ioa_cfg->res_entries);
d73341bf
AB		 8865 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs),
8866 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4 8867 ipr_free_cmd_blks(ioa_cfg);
05a6538a 8868
8869 for (i = 0; i < ioa_cfg->hrrq_num; i++)
d73341bf
AB		 8870 dma_free_coherent(&ioa_cfg->pdev->dev,
8871 sizeof(u32) * ioa_cfg->hrrq[i].size,
8872 ioa_cfg->hrrq[i].host_rrq,
8873 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 8874
d73341bf
AB		 8875 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size,
8876 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4
LT		 8877
8878 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 8879 dma_free_coherent(&ioa_cfg->pdev->dev,
8880 sizeof(struct ipr_hostrcb),
8881 ioa_cfg->hostrcb[i],
8882 ioa_cfg->hostrcb_dma[i]);
1da177e4
LT		 8883 }
8884
8885 ipr_free_dump(ioa_cfg);
1da177e4
LT		 8886 kfree(ioa_cfg->trace);
8887}
8888
8889/**
8890 * ipr_free_all_resources - Free all allocated resources for an adapter.
8891 * @ipr_cmd: ipr command struct
8892 *
8893 * This function frees all allocated resources for the
8894 * specified adapter.
8895 *
8896 * Return value:
8897 * none
8898 **/
8899static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8900{
8901 struct pci_dev *pdev = ioa_cfg->pdev;
8902
8903 ENTER;
05a6538a 8904 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
8905 ioa_cfg->intr_flag == IPR_USE_MSIX) {
8906 int i;
8907 for (i = 0; i < ioa_cfg->nvectors; i++)
8908 free_irq(ioa_cfg->vectors_info[i].vec,
8909 &ioa_cfg->hrrq[i]);
8910 } else
8911 free_irq(pdev->irq, &ioa_cfg->hrrq[0]);
8912
56d6aa33 8913 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
05a6538a 8914 pci_disable_msi(pdev);
56d6aa33 8915 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
8916 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
05a6538a 8917 pci_disable_msix(pdev);
56d6aa33 8918 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
8919 }
05a6538a 8920
1da177e4
LT		 8921 iounmap(ioa_cfg->hdw_dma_regs);
8922 pci_release_regions(pdev);
8923 ipr_free_mem(ioa_cfg);
8924 scsi_host_put(ioa_cfg->host);
8925 pci_disable_device(pdev);
8926 LEAVE;
8927}
8928
8929/**
8930 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8931 * @ioa_cfg: ioa config struct
8932 *
8933 * Return value:
8934 * 0 on success / -ENOMEM on allocation failure
8935 **/
6f039790 8936static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 8937{
8938 struct ipr_cmnd *ipr_cmd;
8939 struct ipr_ioarcb *ioarcb;
8940 dma_addr_t dma_addr;
05a6538a 8941 int i, entries_each_hrrq, hrrq_id = 0;
1da177e4 8942
d73341bf 8943 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev,
203fa3fe 8944 sizeof(struct ipr_cmnd), 512, 0);
1da177e4
LT		 8945
8946 if (!ioa_cfg->ipr_cmd_pool)
8947 return -ENOMEM;
8948
89aad428
BK		 8949 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL);
8950 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL);
8951
8952 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) {
8953 ipr_free_cmd_blks(ioa_cfg);
8954 return -ENOMEM;
8955 }
8956
05a6538a 8957 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
8958 if (ioa_cfg->hrrq_num > 1) {
8959 if (i == 0) {
8960 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS;
8961 ioa_cfg->hrrq[i].min_cmd_id = 0;
8962 ioa_cfg->hrrq[i].max_cmd_id =
8963 (entries_each_hrrq - 1);
8964 } else {
8965 entries_each_hrrq =
8966 IPR_NUM_BASE_CMD_BLKS/
8967 (ioa_cfg->hrrq_num - 1);
8968 ioa_cfg->hrrq[i].min_cmd_id =
8969 IPR_NUM_INTERNAL_CMD_BLKS +
8970 (i - 1) * entries_each_hrrq;
8971 ioa_cfg->hrrq[i].max_cmd_id =
8972 (IPR_NUM_INTERNAL_CMD_BLKS +
8973 i * entries_each_hrrq - 1);
8974 }
8975 } else {
8976 entries_each_hrrq = IPR_NUM_CMD_BLKS;
8977 ioa_cfg->hrrq[i].min_cmd_id = 0;
8978 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1);
8979 }
8980 ioa_cfg->hrrq[i].size = entries_each_hrrq;
8981 }
8982
8983 BUG_ON(ioa_cfg->hrrq_num == 0);
8984
8985 i = IPR_NUM_CMD_BLKS -
8986 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1;
8987 if (i > 0) {
8988 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i;
8989 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i;
8990 }
8991
1da177e4 8992 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
d73341bf 8993 ipr_cmd = dma_pool_alloc(ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
1da177e4
LT		 8994
8995 if (!ipr_cmd) {
8996 ipr_free_cmd_blks(ioa_cfg);
8997 return -ENOMEM;
8998 }
8999
9000 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
9001 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
9002 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
9003
9004 ioarcb = &ipr_cmd->ioarcb;
a32c055f
WB		 9005 ipr_cmd->dma_addr = dma_addr;
9006 if (ioa_cfg->sis64)
9007 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
9008 else
9009 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
9010
1da177e4 9011 ioarcb->host_response_handle = cpu_to_be32(i << 2);
a32c055f
WB		 9012 if (ioa_cfg->sis64) {
9013 ioarcb->u.sis64_addr_data.data_ioadl_addr =
9014 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
9015 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
96d21f00 9016 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
a32c055f
WB		 9017 } else {
9018 ioarcb->write_ioadl_addr =
9019 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
9020 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
9021 ioarcb->ioasa_host_pci_addr =
96d21f00 9022 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
a32c055f 9023 }
1da177e4
LT		 9024 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
9025 ipr_cmd->cmd_index = i;
9026 ipr_cmd->ioa_cfg = ioa_cfg;
9027 ipr_cmd->sense_buffer_dma = dma_addr +
9028 offsetof(struct ipr_cmnd, sense_buffer);
9029
05a6538a 9030 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id;
9031 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id];
9032 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
9033 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id)
9034 hrrq_id++;
1da177e4
LT		 9035 }
9036
9037 return 0;
9038}
9039
9040/**
9041 * ipr_alloc_mem - Allocate memory for an adapter
9042 * @ioa_cfg: ioa config struct
9043 *
9044 * Return value:
9045 * 0 on success / non-zero for error
9046 **/
6f039790 9047static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9048{
9049 struct pci_dev *pdev = ioa_cfg->pdev;
9050 int i, rc = -ENOMEM;
9051
9052 ENTER;
0bc42e35 9053 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
3e7ebdfa 9054 ioa_cfg->max_devs_supported, GFP_KERNEL);
1da177e4
LT		 9055
9056 if (!ioa_cfg->res_entries)
9057 goto out;
9058
3e7ebdfa 9059 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
1da177e4 9060 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
3e7ebdfa
WB		 9061 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
9062 }
1da177e4 9063
d73341bf
AB		 9064 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev,
9065 sizeof(struct ipr_misc_cbs),
9066 &ioa_cfg->vpd_cbs_dma,
9067 GFP_KERNEL);
1da177e4
LT		 9068
9069 if (!ioa_cfg->vpd_cbs)
9070 goto out_free_res_entries;
9071
9072 if (ipr_alloc_cmd_blks(ioa_cfg))
9073 goto out_free_vpd_cbs;
9074
05a6538a 9075 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf 9076 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev,
05a6538a 9077 sizeof(u32) * ioa_cfg->hrrq[i].size,
d73341bf
AB		 9078 &ioa_cfg->hrrq[i].host_rrq_dma,
9079 GFP_KERNEL);
05a6538a 9080
9081 if (!ioa_cfg->hrrq[i].host_rrq) {
9082 while (--i > 0)
d73341bf 9083 dma_free_coherent(&pdev->dev,
05a6538a 9084 sizeof(u32) * ioa_cfg->hrrq[i].size,
9085 ioa_cfg->hrrq[i].host_rrq,
9086 ioa_cfg->hrrq[i].host_rrq_dma);
9087 goto out_ipr_free_cmd_blocks;
9088 }
9089 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg;
9090 }
1da177e4 9091
d73341bf
AB		 9092 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev,
9093 ioa_cfg->cfg_table_size,
9094 &ioa_cfg->cfg_table_dma,
9095 GFP_KERNEL);
1da177e4 9096
3e7ebdfa 9097 if (!ioa_cfg->u.cfg_table)
1da177e4
LT		 9098 goto out_free_host_rrq;
9099
9100 for (i = 0; i < IPR_NUM_HCAMS; i++) {
d73341bf
AB		 9101 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev,
9102 sizeof(struct ipr_hostrcb),
9103 &ioa_cfg->hostrcb_dma[i],
9104 GFP_KERNEL);
1da177e4
LT		 9105
9106 if (!ioa_cfg->hostrcb[i])
9107 goto out_free_hostrcb_dma;
9108
9109 ioa_cfg->hostrcb[i]->hostrcb_dma =
9110 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
49dc6a18 9111 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
1da177e4
LT		 9112 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
9113 }
9114
0bc42e35 9115 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
1da177e4
LT		 9116 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
9117
9118 if (!ioa_cfg->trace)
9119 goto out_free_hostrcb_dma;
9120
1da177e4
LT		 9121 rc = 0;
9122out:
9123 LEAVE;
9124 return rc;
9125
9126out_free_hostrcb_dma:
9127 while (i-- > 0) {
d73341bf
AB		 9128 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb),
9129 ioa_cfg->hostrcb[i],
9130 ioa_cfg->hostrcb_dma[i]);
1da177e4 9131 }
d73341bf
AB		 9132 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size,
9133 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma);
1da177e4 9134out_free_host_rrq:
05a6538a 9135 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
d73341bf
AB		 9136 dma_free_coherent(&pdev->dev,
9137 sizeof(u32) * ioa_cfg->hrrq[i].size,
9138 ioa_cfg->hrrq[i].host_rrq,
9139 ioa_cfg->hrrq[i].host_rrq_dma);
05a6538a 9140 }
1da177e4
LT		 9141out_ipr_free_cmd_blocks:
9142 ipr_free_cmd_blks(ioa_cfg);
9143out_free_vpd_cbs:
d73341bf
AB		 9144 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs),
9145 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
1da177e4
LT		 9146out_free_res_entries:
9147 kfree(ioa_cfg->res_entries);
9148 goto out;
9149}
9150
9151/**
9152 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
9153 * @ioa_cfg: ioa config struct
9154 *
9155 * Return value:
9156 * none
9157 **/
6f039790 9158static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
1da177e4
LT		 9159{
9160 int i;
9161
9162 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
9163 ioa_cfg->bus_attr[i].bus = i;
9164 ioa_cfg->bus_attr[i].qas_enabled = 0;
9165 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
9166 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
9167 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
9168 else
9169 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
9170 }
9171}
9172
6270e593
BK		 9173/**
9174 * ipr_init_regs - Initialize IOA registers
9175 * @ioa_cfg: ioa config struct
9176 *
9177 * Return value:
9178 * none
9179 **/
9180static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg)
9181{
9182 const struct ipr_interrupt_offsets *p;
9183 struct ipr_interrupts *t;
9184 void __iomem *base;
9185
9186 p = &ioa_cfg->chip_cfg->regs;
9187 t = &ioa_cfg->regs;
9188 base = ioa_cfg->hdw_dma_regs;
9189
9190 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
9191 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
9192 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
9193 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
9194 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
9195 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
9196 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
9197 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
9198 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
9199 t->ioarrin_reg = base + p->ioarrin_reg;
9200 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
9201 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
9202 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
9203 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
9204 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
9205 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
9206
9207 if (ioa_cfg->sis64) {
9208 t->init_feedback_reg = base + p->init_feedback_reg;
9209 t->dump_addr_reg = base + p->dump_addr_reg;
9210 t->dump_data_reg = base + p->dump_data_reg;
9211 t->endian_swap_reg = base + p->endian_swap_reg;
9212 }
9213}
9214
1da177e4
LT		 9215/**
9216 * ipr_init_ioa_cfg - Initialize IOA config struct
9217 * @ioa_cfg: ioa config struct
9218 * @host: scsi host struct
9219 * @pdev: PCI dev struct
9220 *
9221 * Return value:
9222 * none
9223 **/
6f039790
GKH		 9224static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
9225 struct Scsi_Host *host, struct pci_dev *pdev)
1da177e4 9226{
6270e593 9227 int i;
1da177e4
LT		 9228
9229 ioa_cfg->host = host;
9230 ioa_cfg->pdev = pdev;
9231 ioa_cfg->log_level = ipr_log_level;
3d1d0da6 9232 ioa_cfg->doorbell = IPR_DOORBELL;
1da177e4
LT		 9233 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
9234 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
1da177e4
LT		 9235 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
9236 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
9237 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
9238 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
9239
1da177e4
LT		 9240 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
9241 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
9242 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
9243 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
c4028958 9244 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
1da177e4 9245 init_waitqueue_head(&ioa_cfg->reset_wait_q);
95fecd90 9246 init_waitqueue_head(&ioa_cfg->msi_wait_q);
6270e593 9247 init_waitqueue_head(&ioa_cfg->eeh_wait_q);
1da177e4
LT		 9248 ioa_cfg->sdt_state = INACTIVE;
9249
9250 ipr_initialize_bus_attr(ioa_cfg);
3e7ebdfa 9251 ioa_cfg->max_devs_supported = ipr_max_devs;
1da177e4 9252
3e7ebdfa
WB		 9253 if (ioa_cfg->sis64) {
9254 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
9255 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
9256 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
9257 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
6270e593
BK		 9258 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
9259 + ((sizeof(struct ipr_config_table_entry64)
9260 * ioa_cfg->max_devs_supported)));
3e7ebdfa
WB		 9261 } else {
9262 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
9263 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
9264 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
9265 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
6270e593
BK		 9266 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
9267 + ((sizeof(struct ipr_config_table_entry)
9268 * ioa_cfg->max_devs_supported)));
3e7ebdfa 9269 }
6270e593 9270
1da177e4
LT		 9271 host->max_channel = IPR_MAX_BUS_TO_SCAN;
9272 host->unique_id = host->host_no;
9273 host->max_cmd_len = IPR_MAX_CDB_LEN;
89aad428 9274 host->can_queue = ioa_cfg->max_cmds;
1da177e4
LT		 9275 pci_set_drvdata(pdev, ioa_cfg);
9276
6270e593
BK		 9277 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) {
9278 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q);
9279 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q);
9280 spin_lock_init(&ioa_cfg->hrrq[i]._lock);
9281 if (i == 0)
9282 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock;
9283 else
9284 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock;
dcbad00e 9285 }
1da177e4
LT		 9286}
9287
9288/**
1be7bd82 9289 * ipr_get_chip_info - Find adapter chip information
1da177e4
LT		 9290 * @dev_id: PCI device id struct
9291 *
9292 * Return value:
1be7bd82 9293 * ptr to chip information on success / NULL on failure
1da177e4 9294 **/
6f039790 9295static const struct ipr_chip_t *
1be7bd82 9296ipr_get_chip_info(const struct pci_device_id *dev_id)
1da177e4
LT		 9297{
9298 int i;
9299
1da177e4
LT		 9300 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
9301 if (ipr_chip[i].vendor == dev_id->vendor &&
9302 ipr_chip[i].device == dev_id->device)
1be7bd82 9303 return &ipr_chip[i];
1da177e4
LT		 9304 return NULL;
9305}
9306
6270e593
BK		 9307/**
9308 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete
9309 * during probe time
9310 * @ioa_cfg: ioa config struct
9311 *
9312 * Return value:
9313 * None
9314 **/
9315static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg)
9316{
9317 struct pci_dev *pdev = ioa_cfg->pdev;
9318
9319 if (pci_channel_offline(pdev)) {
9320 wait_event_timeout(ioa_cfg->eeh_wait_q,
9321 !pci_channel_offline(pdev),
9322 IPR_PCI_ERROR_RECOVERY_TIMEOUT);
9323 pci_restore_state(pdev);
9324 }
9325}
9326
05a6538a 9327static int ipr_enable_msix(struct ipr_ioa_cfg *ioa_cfg)
9328{
9329 struct msix_entry entries[IPR_MAX_MSIX_VECTORS];
60e76b77 9330 int i, vectors;
05a6538a 9331
9332 for (i = 0; i < ARRAY_SIZE(entries); ++i)
9333 entries[i].entry = i;
9334
60e76b77
AG		 9335 vectors = pci_enable_msix_range(ioa_cfg->pdev,
9336 entries, 1, ipr_number_of_msix);
9337 if (vectors < 0) {
6270e593 9338 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9339 return vectors;
05a6538a 9340 }
9341
60e76b77
AG		 9342 for (i = 0; i < vectors; i++)
9343 ioa_cfg->vectors_info[i].vec = entries[i].vector;
9344 ioa_cfg->nvectors = vectors;
05a6538a 9345
60e76b77 9346 return 0;
05a6538a 9347}
9348
9349static int ipr_enable_msi(struct ipr_ioa_cfg *ioa_cfg)
9350{
60e76b77 9351 int i, vectors;
05a6538a 9352
60e76b77
AG		 9353 vectors = pci_enable_msi_range(ioa_cfg->pdev, 1, ipr_number_of_msix);
9354 if (vectors < 0) {
6270e593 9355 ipr_wait_for_pci_err_recovery(ioa_cfg);
60e76b77 9356 return vectors;
05a6538a 9357 }
9358
60e76b77
AG		 9359 for (i = 0; i < vectors; i++)
9360 ioa_cfg->vectors_info[i].vec = ioa_cfg->pdev->irq + i;
9361 ioa_cfg->nvectors = vectors;
05a6538a 9362
60e76b77 9363 return 0;
05a6538a 9364}
9365
9366static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg)
9367{
9368 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1;
9369
9370 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) {
9371 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n,
9372 "host%d-%d", ioa_cfg->host->host_no, vec_idx);
9373 ioa_cfg->vectors_info[vec_idx].
9374 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0;
9375 }
9376}
9377
9378static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg)
9379{
9380 int i, rc;
9381
9382 for (i = 1; i < ioa_cfg->nvectors; i++) {
9383 rc = request_irq(ioa_cfg->vectors_info[i].vec,
9384 ipr_isr_mhrrq,
9385 0,
9386 ioa_cfg->vectors_info[i].desc,
9387 &ioa_cfg->hrrq[i]);
9388 if (rc) {
9389 while (--i >= 0)
9390 free_irq(ioa_cfg->vectors_info[i].vec,
9391 &ioa_cfg->hrrq[i]);
9392 return rc;
9393 }
9394 }
9395 return 0;
9396}
9397
95fecd90
WB		 9398/**
9399 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
9400 * @pdev: PCI device struct
9401 *
9402 * Description: Simply set the msi_received flag to 1 indicating that
9403 * Message Signaled Interrupts are supported.
9404 *
9405 * Return value:
9406 * 0 on success / non-zero on failure
9407 **/
6f039790 9408static irqreturn_t ipr_test_intr(int irq, void *devp)
95fecd90
WB		 9409{
9410 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
9411 unsigned long lock_flags = 0;
9412 irqreturn_t rc = IRQ_HANDLED;
9413
05a6538a 9414 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq);
95fecd90
WB		 9415 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9416
9417 ioa_cfg->msi_received = 1;
9418 wake_up(&ioa_cfg->msi_wait_q);
9419
9420 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9421 return rc;
9422}
9423
9424/**
9425 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
9426 * @pdev: PCI device struct
9427 *
60e76b77 9428 * Description: The return value from pci_enable_msi_range() can not always be
95fecd90
WB		 9429 * trusted. This routine sets up and initiates a test interrupt to determine
9430 * if the interrupt is received via the ipr_test_intr() service routine.
9431 * If the tests fails, the driver will fall back to LSI.
9432 *
9433 * Return value:
9434 * 0 on success / non-zero on failure
9435 **/
6f039790 9436static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev)
95fecd90
WB		 9437{
9438 int rc;
9439 volatile u32 int_reg;
9440 unsigned long lock_flags = 0;
9441
9442 ENTER;
9443
9444 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9445 init_waitqueue_head(&ioa_cfg->msi_wait_q);
9446 ioa_cfg->msi_received = 0;
9447 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
214777ba 9448 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
95fecd90
WB		 9449 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
9450 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9451
f19799f4 9452 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9453 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
9454 else
9455 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
95fecd90
WB		 9456 if (rc) {
9457 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
9458 return rc;
9459 } else if (ipr_debug)
9460 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
9461
214777ba 9462 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
95fecd90
WB		 9463 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
9464 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
56d6aa33 9465 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
95fecd90
WB		 9466 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
9467
95fecd90
WB		 9468 if (!ioa_cfg->msi_received) {
9469 /* MSI test failed */
9470 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
9471 rc = -EOPNOTSUPP;
9472 } else if (ipr_debug)
9473 dev_info(&pdev->dev, "MSI test succeeded.\n");
9474
9475 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9476
f19799f4 9477 if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9478 free_irq(ioa_cfg->vectors_info[0].vec, ioa_cfg);
9479 else
9480 free_irq(pdev->irq, ioa_cfg);
95fecd90
WB		 9481
9482 LEAVE;
9483
9484 return rc;
9485}
9486
05a6538a 9487 /* ipr_probe_ioa - Allocates memory and does first stage of initialization
1da177e4
LT		 9488 * @pdev: PCI device struct
9489 * @dev_id: PCI device id struct
9490 *
9491 * Return value:
9492 * 0 on success / non-zero on failure
9493 **/
6f039790
GKH		 9494static int ipr_probe_ioa(struct pci_dev *pdev,
9495 const struct pci_device_id *dev_id)
1da177e4
LT		 9496{
9497 struct ipr_ioa_cfg *ioa_cfg;
9498 struct Scsi_Host *host;
9499 unsigned long ipr_regs_pci;
9500 void __iomem *ipr_regs;
a2a65a3e 9501 int rc = PCIBIOS_SUCCESSFUL;
473b1e8e 9502 volatile u32 mask, uproc, interrupts;
feccada9 9503 unsigned long lock_flags, driver_lock_flags;
1da177e4
LT		 9504
9505 ENTER;
9506
1da177e4 9507 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
1da177e4
LT		 9508 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
9509
9510 if (!host) {
9511 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
9512 rc = -ENOMEM;
6270e593 9513 goto out;
1da177e4
LT		 9514 }
9515
9516 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
9517 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8d8e7d13 9518 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops);
1da177e4 9519
1be7bd82 9520 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
1da177e4 9521
1be7bd82 9522 if (!ioa_cfg->ipr_chip) {
1da177e4
LT		 9523 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
9524 dev_id->vendor, dev_id->device);
9525 goto out_scsi_host_put;
9526 }
9527
a32c055f
WB		 9528 /* set SIS 32 or SIS 64 */
9529 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
1be7bd82 9530 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7dd21308 9531 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr;
89aad428 9532 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds;
1be7bd82 9533
5469cb5b
BK		 9534 if (ipr_transop_timeout)
9535 ioa_cfg->transop_timeout = ipr_transop_timeout;
9536 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
9537 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
9538 else
9539 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
9540
44c10138 9541 ioa_cfg->revid = pdev->revision;
463fc696 9542
6270e593
BK		 9543 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
9544
1da177e4
LT		 9545 ipr_regs_pci = pci_resource_start(pdev, 0);
9546
9547 rc = pci_request_regions(pdev, IPR_NAME);
9548 if (rc < 0) {
9549 dev_err(&pdev->dev,
9550 "Couldn't register memory range of registers\n");
9551 goto out_scsi_host_put;
9552 }
9553
6270e593
BK		 9554 rc = pci_enable_device(pdev);
9555
9556 if (rc || pci_channel_offline(pdev)) {
9557 if (pci_channel_offline(pdev)) {
9558 ipr_wait_for_pci_err_recovery(ioa_cfg);
9559 rc = pci_enable_device(pdev);
9560 }
9561
9562 if (rc) {
9563 dev_err(&pdev->dev, "Cannot enable adapter\n");
9564 ipr_wait_for_pci_err_recovery(ioa_cfg);
9565 goto out_release_regions;
9566 }
9567 }
9568
25729a7f 9569 ipr_regs = pci_ioremap_bar(pdev, 0);
1da177e4
LT		 9570
9571 if (!ipr_regs) {
9572 dev_err(&pdev->dev,
9573 "Couldn't map memory range of registers\n");
9574 rc = -ENOMEM;
6270e593 9575 goto out_disable;
1da177e4
LT		 9576 }
9577
9578 ioa_cfg->hdw_dma_regs = ipr_regs;
9579 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
9580 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
9581
6270e593 9582 ipr_init_regs(ioa_cfg);
1da177e4 9583
a32c055f 9584 if (ioa_cfg->sis64) {
869404cb 9585 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
a32c055f 9586 if (rc < 0) {
869404cb
AB		 9587 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n");
9588 rc = dma_set_mask_and_coherent(&pdev->dev,
9589 DMA_BIT_MASK(32));
a32c055f 9590 }
a32c055f 9591 } else
869404cb 9592 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
a32c055f 9593
1da177e4 9594 if (rc < 0) {
869404cb 9595 dev_err(&pdev->dev, "Failed to set DMA mask\n");
1da177e4
LT		 9596 goto cleanup_nomem;
9597 }
9598
9599 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
9600 ioa_cfg->chip_cfg->cache_line_size);
9601
9602 if (rc != PCIBIOS_SUCCESSFUL) {
9603 dev_err(&pdev->dev, "Write of cache line size failed\n");
6270e593 9604 ipr_wait_for_pci_err_recovery(ioa_cfg);
1da177e4
LT		 9605 rc = -EIO;
9606 goto cleanup_nomem;
9607 }
9608
6270e593
BK		 9609 /* Issue MMIO read to ensure card is not in EEH */
9610 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
9611 ipr_wait_for_pci_err_recovery(ioa_cfg);
9612
05a6538a 9613 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) {
9614 dev_err(&pdev->dev, "The max number of MSIX is %d\n",
9615 IPR_MAX_MSIX_VECTORS);
9616 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS;
9617 }
9618
9619 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9620 ipr_enable_msix(ioa_cfg) == 0)
05a6538a 9621 ioa_cfg->intr_flag = IPR_USE_MSIX;
9622 else if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI &&
56d6aa33 9623 ipr_enable_msi(ioa_cfg) == 0)
05a6538a 9624 ioa_cfg->intr_flag = IPR_USE_MSI;
9625 else {
9626 ioa_cfg->intr_flag = IPR_USE_LSI;
9627 ioa_cfg->nvectors = 1;
9628 dev_info(&pdev->dev, "Cannot enable MSI.\n");
9629 }
9630
6270e593
BK		 9631 pci_set_master(pdev);
9632
9633 if (pci_channel_offline(pdev)) {
9634 ipr_wait_for_pci_err_recovery(ioa_cfg);
9635 pci_set_master(pdev);
9636 if (pci_channel_offline(pdev)) {
9637 rc = -EIO;
9638 goto out_msi_disable;
9639 }
9640 }
9641
05a6538a 9642 if (ioa_cfg->intr_flag == IPR_USE_MSI ||
9643 ioa_cfg->intr_flag == IPR_USE_MSIX) {
95fecd90 9644 rc = ipr_test_msi(ioa_cfg, pdev);
05a6538a 9645 if (rc == -EOPNOTSUPP) {
6270e593 9646 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9647 if (ioa_cfg->intr_flag == IPR_USE_MSI) {
9648 ioa_cfg->intr_flag &= ~IPR_USE_MSI;
9649 pci_disable_msi(pdev);
9650 } else if (ioa_cfg->intr_flag == IPR_USE_MSIX) {
9651 ioa_cfg->intr_flag &= ~IPR_USE_MSIX;
9652 pci_disable_msix(pdev);
9653 }
9654
9655 ioa_cfg->intr_flag = IPR_USE_LSI;
9656 ioa_cfg->nvectors = 1;
9657 }
95fecd90
WB		 9658 else if (rc)
9659 goto out_msi_disable;
05a6538a 9660 else {
9661 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9662 dev_info(&pdev->dev,
9663 "Request for %d MSIs succeeded with starting IRQ: %d\n",
9664 ioa_cfg->nvectors, pdev->irq);
9665 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9666 dev_info(&pdev->dev,
9667 "Request for %d MSIXs succeeded.",
9668 ioa_cfg->nvectors);
9669 }
9670 }
9671
9672 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors,
9673 (unsigned int)num_online_cpus(),
9674 (unsigned int)IPR_MAX_HRRQ_NUM);
95fecd90 9675
1da177e4 9676 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
f170c684 9677 goto out_msi_disable;
1da177e4
LT		 9678
9679 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
f170c684 9680 goto out_msi_disable;
1da177e4
LT		 9681
9682 rc = ipr_alloc_mem(ioa_cfg);
9683 if (rc < 0) {
9684 dev_err(&pdev->dev,
9685 "Couldn't allocate enough memory for device driver!\n");
f170c684 9686 goto out_msi_disable;
1da177e4
LT		 9687 }
9688
6270e593
BK		 9689 /* Save away PCI config space for use following IOA reset */
9690 rc = pci_save_state(pdev);
9691
9692 if (rc != PCIBIOS_SUCCESSFUL) {
9693 dev_err(&pdev->dev, "Failed to save PCI config space\n");
9694 rc = -EIO;
9695 goto cleanup_nolog;
9696 }
9697
ce155cce
BK		 9698 /*
9699 * If HRRQ updated interrupt is not masked, or reset alert is set,
9700 * the card is in an unknown state and needs a hard reset
9701 */
214777ba
WB		 9702 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
9703 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
9704 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
ce155cce
BK		 9705 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
9706 ioa_cfg->needs_hard_reset = 1;
5d7c20b7 9707 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
473b1e8e
BK		 9708 ioa_cfg->needs_hard_reset = 1;
9709 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
9710 ioa_cfg->ioa_unit_checked = 1;
ce155cce 9711
56d6aa33 9712 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1da177e4 9713 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
56d6aa33 9714 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1da177e4 9715
05a6538a 9716 if (ioa_cfg->intr_flag == IPR_USE_MSI
9717 || ioa_cfg->intr_flag == IPR_USE_MSIX) {
9718 name_msi_vectors(ioa_cfg);
9719 rc = request_irq(ioa_cfg->vectors_info[0].vec, ipr_isr,
9720 0,
9721 ioa_cfg->vectors_info[0].desc,
9722 &ioa_cfg->hrrq[0]);
9723 if (!rc)
9724 rc = ipr_request_other_msi_irqs(ioa_cfg);
9725 } else {
9726 rc = request_irq(pdev->irq, ipr_isr,
9727 IRQF_SHARED,
9728 IPR_NAME, &ioa_cfg->hrrq[0]);
9729 }
1da177e4
LT		 9730 if (rc) {
9731 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
9732 pdev->irq, rc);
9733 goto cleanup_nolog;
9734 }
9735
463fc696
BK		 9736 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
9737 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
9738 ioa_cfg->needs_warm_reset = 1;
9739 ioa_cfg->reset = ipr_reset_slot_reset;
9740 } else
9741 ioa_cfg->reset = ipr_reset_start_bist;
9742
feccada9 9743 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 9744 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
feccada9 9745 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 9746
9747 LEAVE;
9748out:
9749 return rc;
9750
9751cleanup_nolog:
9752 ipr_free_mem(ioa_cfg);
95fecd90 9753out_msi_disable:
6270e593 9754 ipr_wait_for_pci_err_recovery(ioa_cfg);
05a6538a 9755 if (ioa_cfg->intr_flag == IPR_USE_MSI)
9756 pci_disable_msi(pdev);
9757 else if (ioa_cfg->intr_flag == IPR_USE_MSIX)
9758 pci_disable_msix(pdev);
f170c684
JL		 9759cleanup_nomem:
9760 iounmap(ipr_regs);
6270e593
BK		 9761out_disable:
9762 pci_disable_device(pdev);
1da177e4
LT		 9763out_release_regions:
9764 pci_release_regions(pdev);
9765out_scsi_host_put:
9766 scsi_host_put(host);
1da177e4
LT		 9767 goto out;
9768}
9769
9770/**
9771 * ipr_scan_vsets - Scans for VSET devices
9772 * @ioa_cfg: ioa config struct
9773 *
9774 * Description: Since the VSET resources do not follow SAM in that we can have
9775 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
9776 *
9777 * Return value:
9778 * none
9779 **/
9780static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
9781{
9782 int target, lun;
9783
9784 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
203fa3fe 9785 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++)
1da177e4
LT		 9786 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
9787}
9788
9789/**
9790 * ipr_initiate_ioa_bringdown - Bring down an adapter
9791 * @ioa_cfg: ioa config struct
9792 * @shutdown_type: shutdown type
9793 *
9794 * Description: This function will initiate bringing down the adapter.
9795 * This consists of issuing an IOA shutdown to the adapter
9796 * to flush the cache, and running BIST.
9797 * If the caller needs to wait on the completion of the reset,
9798 * the caller must sleep on the reset_wait_q.
9799 *
9800 * Return value:
9801 * none
9802 **/
9803static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
9804 enum ipr_shutdown_type shutdown_type)
9805{
9806 ENTER;
9807 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
9808 ioa_cfg->sdt_state = ABORT_DUMP;
9809 ioa_cfg->reset_retries = 0;
9810 ioa_cfg->in_ioa_bringdown = 1;
9811 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
9812 LEAVE;
9813}
9814
9815/**
9816 * __ipr_remove - Remove a single adapter
9817 * @pdev: pci device struct
9818 *
9819 * Adapter hot plug remove entry point.
9820 *
9821 * Return value:
9822 * none
9823 **/
9824static void __ipr_remove(struct pci_dev *pdev)
9825{
9826 unsigned long host_lock_flags = 0;
9827 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
bfae7820 9828 int i;
feccada9 9829 unsigned long driver_lock_flags;
1da177e4
LT		 9830 ENTER;
9831
9832 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
203fa3fe 9833 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 9834 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9835 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9836 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9837 }
9838
bfae7820
BK		 9839 for (i = 0; i < ioa_cfg->hrrq_num; i++) {
9840 spin_lock(&ioa_cfg->hrrq[i]._lock);
9841 ioa_cfg->hrrq[i].removing_ioa = 1;
9842 spin_unlock(&ioa_cfg->hrrq[i]._lock);
9843 }
9844 wmb();
1da177e4
LT		 9845 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9846
9847 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9848 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
43829731 9849 flush_work(&ioa_cfg->work_q);
9077a944 9850 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
1da177e4
LT		 9851 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9852
feccada9 9853 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
1da177e4 9854 list_del(&ioa_cfg->queue);
feccada9 9855 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
1da177e4
LT		 9856
9857 if (ioa_cfg->sdt_state == ABORT_DUMP)
9858 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9859 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9860
9861 ipr_free_all_resources(ioa_cfg);
9862
9863 LEAVE;
9864}
9865
9866/**
9867 * ipr_remove - IOA hot plug remove entry point
9868 * @pdev: pci device struct
9869 *
9870 * Adapter hot plug remove entry point.
9871 *
9872 * Return value:
9873 * none
9874 **/
6f039790 9875static void ipr_remove(struct pci_dev *pdev)
1da177e4
LT		 9876{
9877 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9878
9879 ENTER;
9880
ee959b00 9881 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4 9882 &ipr_trace_attr);
ee959b00 9883 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9884 &ipr_dump_attr);
9885 scsi_remove_host(ioa_cfg->host);
9886
9887 __ipr_remove(pdev);
9888
9889 LEAVE;
9890}
9891
9892/**
9893 * ipr_probe - Adapter hot plug add entry point
9894 *
9895 * Return value:
9896 * 0 on success / non-zero on failure
9897 **/
6f039790 9898static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
1da177e4
LT		 9899{
9900 struct ipr_ioa_cfg *ioa_cfg;
b53d124a 9901 int rc, i;
1da177e4
LT		 9902
9903 rc = ipr_probe_ioa(pdev, dev_id);
9904
9905 if (rc)
9906 return rc;
9907
9908 ioa_cfg = pci_get_drvdata(pdev);
9909 rc = ipr_probe_ioa_part2(ioa_cfg);
9910
9911 if (rc) {
9912 __ipr_remove(pdev);
9913 return rc;
9914 }
9915
9916 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9917
9918 if (rc) {
9919 __ipr_remove(pdev);
9920 return rc;
9921 }
9922
ee959b00 9923 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9924 &ipr_trace_attr);
9925
9926 if (rc) {
9927 scsi_remove_host(ioa_cfg->host);
9928 __ipr_remove(pdev);
9929 return rc;
9930 }
9931
ee959b00 9932 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9933 &ipr_dump_attr);
9934
9935 if (rc) {
ee959b00 9936 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
1da177e4
LT		 9937 &ipr_trace_attr);
9938 scsi_remove_host(ioa_cfg->host);
9939 __ipr_remove(pdev);
9940 return rc;
9941 }
9942
9943 scsi_scan_host(ioa_cfg->host);
9944 ipr_scan_vsets(ioa_cfg);
9945 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9946 ioa_cfg->allow_ml_add_del = 1;
11cd8f12 9947 ioa_cfg->host->max_channel = IPR_VSET_BUS;
b53d124a 9948 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
9949
89f8b33c 9950 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 9951 for (i = 1; i < ioa_cfg->hrrq_num; i++) {
9952 blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
9953 ioa_cfg->iopoll_weight, ipr_iopoll);
9954 blk_iopoll_enable(&ioa_cfg->hrrq[i].iopoll);
9955 }
9956 }
9957
1da177e4
LT		 9958 schedule_work(&ioa_cfg->work_q);
9959 return 0;
9960}
9961
9962/**
9963 * ipr_shutdown - Shutdown handler.
d18c3db5 9964 * @pdev: pci device struct
1da177e4
LT		 9965 *
9966 * This function is invoked upon system shutdown/reboot. It will issue
9967 * an adapter shutdown to the adapter to flush the write cache.
9968 *
9969 * Return value:
9970 * none
9971 **/
d18c3db5 9972static void ipr_shutdown(struct pci_dev *pdev)
1da177e4 9973{
d18c3db5 9974 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
1da177e4 9975 unsigned long lock_flags = 0;
b53d124a 9976 int i;
1da177e4
LT		 9977
9978 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
89f8b33c 9979 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
b53d124a 9980 ioa_cfg->iopoll_weight = 0;
9981 for (i = 1; i < ioa_cfg->hrrq_num; i++)
9982 blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
9983 }
9984
203fa3fe 9985 while (ioa_cfg->in_reset_reload) {
970ea294
BK		 9986 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9987 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9988 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9989 }
9990
1da177e4
LT		 9991 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9992 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9993 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9994}
9995
6f039790 9996static struct pci_device_id ipr_pci_table[] = {
1da177e4 9997 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 9998 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
1da177e4 9999 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10000 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
1da177e4 10001 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10002 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
1da177e4 10003 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
6d84c944 10004 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
1da177e4 10005 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10006 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
1da177e4 10007 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10008 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
1da177e4 10009 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
6d84c944 10010 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
86f51436 10011 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
5469cb5b
BK		 10012 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
10013 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10014 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
6d84c944 10015 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10016 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
22d2e402
BK		 10017 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10018 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10019 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
5469cb5b
BK		 10020 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10021 IPR_USE_LONG_TRANSOP_TIMEOUT },
86f51436 10022 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
6d84c944 10023 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
86f51436 10024 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
22d2e402
BK		 10025 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
10026 IPR_USE_LONG_TRANSOP_TIMEOUT},
60e7486b 10027 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
5469cb5b
BK		 10028 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
10029 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c 10030 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
22d2e402
BK		 10031 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
10032 IPR_USE_LONG_TRANSOP_TIMEOUT },
185eb31c
BK		 10033 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10034 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
b0f56d3d
WB		 10035 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
10036 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
60e7486b 10037 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
5469cb5b 10038 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
463fc696 10039 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
1da177e4 10040 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
6d84c944 10041 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
1da177e4 10042 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
6d84c944 10043 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
86f51436 10044 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10045 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
10046 IPR_USE_LONG_TRANSOP_TIMEOUT },
60e7486b 10047 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
5469cb5b
BK		 10048 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
10049 IPR_USE_LONG_TRANSOP_TIMEOUT },
d7b4627f
WB		 10050 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10051 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
10052 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10053 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
10054 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10055 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
b8d5d568 10056 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10057 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 },
5a918353
WB		 10058 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10059 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
32622bde
WB		 10060 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
10061 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
cd9b3d04 10062 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10063 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
cd9b3d04 10064 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10065 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
cd9b3d04 10066 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10067 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
cd9b3d04
WB		 10068 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10069 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
10070 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
d7b4627f 10071 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
b8d5d568 10072 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10073 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 },
10074 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10075 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 },
10076 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10077 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 },
10078 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10079 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 },
43c5fdaf 10080 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10081 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 },
10082 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
f94d9964
WX		 10083 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 },
10084 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
43c5fdaf 10085 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 },
10086 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10087 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 },
10088 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10089 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 },
10090 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10091 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 },
10092 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10093 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 },
10094 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10095 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 },
5eeac3e9
WX		 10096 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10097 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 },
10098 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10099 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 },
10100 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
10101 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 },
1da177e4
LT		 10102 { }
10103};
10104MODULE_DEVICE_TABLE(pci, ipr_pci_table);
10105
a55b2d21 10106static const struct pci_error_handlers ipr_err_handler = {
f8a88b19 10107 .error_detected = ipr_pci_error_detected,
6270e593 10108 .mmio_enabled = ipr_pci_mmio_enabled,
f8a88b19
LV		 10109 .slot_reset = ipr_pci_slot_reset,
10110};
10111
1da177e4
LT		 10112static struct pci_driver ipr_driver = {
10113 .name = IPR_NAME,
10114 .id_table = ipr_pci_table,
10115 .probe = ipr_probe,
6f039790 10116 .remove = ipr_remove,
d18c3db5 10117 .shutdown = ipr_shutdown,
f8a88b19 10118 .err_handler = &ipr_err_handler,
1da177e4
LT		 10119};
10120
f72919ec
WB		 10121/**
10122 * ipr_halt_done - Shutdown prepare completion
10123 *
10124 * Return value:
10125 * none
10126 **/
10127static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
10128{
05a6538a 10129 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q);
f72919ec
WB		 10130}
10131
10132/**
10133 * ipr_halt - Issue shutdown prepare to all adapters
10134 *
10135 * Return value:
10136 * NOTIFY_OK on success / NOTIFY_DONE on failure
10137 **/
10138static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
10139{
10140 struct ipr_cmnd *ipr_cmd;
10141 struct ipr_ioa_cfg *ioa_cfg;
feccada9 10142 unsigned long flags = 0, driver_lock_flags;
f72919ec
WB		 10143
10144 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
10145 return NOTIFY_DONE;
10146
feccada9 10147 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10148
10149 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
10150 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
56d6aa33 10151 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
f72919ec
WB		 10152 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10153 continue;
10154 }
10155
10156 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
10157 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
10158 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
10159 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
10160 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
10161
10162 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
10163 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
10164 }
feccada9 10165 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags);
f72919ec
WB		 10166
10167 return NOTIFY_OK;
10168}
10169
10170static struct notifier_block ipr_notifier = {
10171 ipr_halt, NULL, 0
10172};
10173
1da177e4
LT		 10174/**
10175 * ipr_init - Module entry point
10176 *
10177 * Return value:
10178 * 0 on success / negative value on failure
10179 **/
10180static int __init ipr_init(void)
10181{
10182 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
10183 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
10184
f72919ec 10185 register_reboot_notifier(&ipr_notifier);
dcbccbde 10186 return pci_register_driver(&ipr_driver);
1da177e4
LT		 10187}
10188
10189/**
10190 * ipr_exit - Module unload
10191 *
10192 * Module unload entry point.
10193 *
10194 * Return value:
10195 * none
10196 **/
10197static void __exit ipr_exit(void)
10198{
f72919ec 10199 unregister_reboot_notifier(&ipr_notifier);
1da177e4
LT		 10200 pci_unregister_driver(&ipr_driver);
10201}
10202
10203module_init(ipr_init);
10204module_exit(ipr_exit);
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