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